/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp

Bug Summary

File:	tools/lldb/source/Target/Process.cpp
Location:	line 2538, column 17
Description:	Value stored to 'bytes_written' is never read

Annotated Source Code

1	//===-- Process.cpp ---------------------------------------------- C++ --===//
2	//
3	// The LLVM Compiler Infrastructure
4	//
5	// This file is distributed under the University of Illinois Open Source
6	// License. See LICENSE.TXT for details.
7	//
8	//===----------------------------------------------------------------------===//
9
10	#include "lldb/lldb-python.h"
11
12	#include "lldb/Target/Process.h"
13
14	#include "lldb/lldb-private-log.h"
15
16	#include "lldb/Breakpoint/StoppointCallbackContext.h"
17	#include "lldb/Breakpoint/BreakpointLocation.h"
18	#include "lldb/Core/Event.h"
19	#include "lldb/Core/Debugger.h"
20	#include "lldb/Core/Log.h"
21	#include "lldb/Core/Module.h"
22	#include "lldb/Core/PluginManager.h"
23	#include "lldb/Core/State.h"
24	#include "lldb/Core/StreamFile.h"
25	#include "lldb/Expression/ClangUserExpression.h"
26	#include "lldb/Host/ConnectionFileDescriptor.h"
27	#include "lldb/Host/Host.h"
28	#include "lldb/Host/HostInfo.h"
29	#include "lldb/Host/Pipe.h"
30	#include "lldb/Host/Terminal.h"
31	#include "lldb/Host/ThreadLauncher.h"
32	#include "lldb/Interpreter/CommandInterpreter.h"
33	#include "lldb/Symbol/Symbol.h"
34	#include "lldb/Target/ABI.h"
35	#include "lldb/Target/DynamicLoader.h"
36	#include "lldb/Target/JITLoader.h"
37	#include "lldb/Target/MemoryHistory.h"
38	#include "lldb/Target/OperatingSystem.h"
39	#include "lldb/Target/LanguageRuntime.h"
40	#include "lldb/Target/CPPLanguageRuntime.h"
41	#include "lldb/Target/ObjCLanguageRuntime.h"
42	#include "lldb/Target/Platform.h"
43	#include "lldb/Target/RegisterContext.h"
44	#include "lldb/Target/StopInfo.h"
45	#include "lldb/Target/SystemRuntime.h"
46	#include "lldb/Target/Target.h"
47	#include "lldb/Target/TargetList.h"
48	#include "lldb/Target/Thread.h"
49	#include "lldb/Target/ThreadPlan.h"
50	#include "lldb/Target/ThreadPlanBase.h"
51	#include "lldb/Target/InstrumentationRuntime.h"
52	#include "Plugins/Process/Utility/InferiorCallPOSIX.h"
53
54	using namespace lldb;
55	using namespace lldb_private;
56
57
58	// Comment out line below to disable memory caching, overriding the process setting
59	// target.process.disable-memory-cache
60	#define ENABLE_MEMORY_CACHING
61
62	#ifdef ENABLE_MEMORY_CACHING
63	#define DISABLE_MEM_CACHE_DEFAULTfalse false
64	#else
65	#define DISABLE_MEM_CACHE_DEFAULTfalse true
66	#endif
67
68	class ProcessOptionValueProperties : public OptionValueProperties
69	{
70	public:
71	ProcessOptionValueProperties (const ConstString &name) :
72	OptionValueProperties (name)
73	{
74	}
75
76	// This constructor is used when creating ProcessOptionValueProperties when it
77	// is part of a new lldb_private::Process instance. It will copy all current
78	// global property values as needed
79	ProcessOptionValueProperties (ProcessProperties *global_properties) :
80	OptionValueProperties(*global_properties->GetValueProperties())
81	{
82	}
83
84	virtual const Property *
85	GetPropertyAtIndex (const ExecutionContext *exe_ctx, bool will_modify, uint32_t idx) const
86	{
87	// When getting the value for a key from the process options, we will always
88	// try and grab the setting from the current process if there is one. Else we just
89	// use the one from this instance.
90	if (exe_ctx)
91	{
92	Process *process = exe_ctx->GetProcessPtr();
93	if (process)
94	{
95	ProcessOptionValueProperties instance_properties = static_cast<ProcessOptionValueProperties >(process->GetValueProperties().get());
96	if (this != instance_properties)
97	return instance_properties->ProtectedGetPropertyAtIndex (idx);
98	}
99	}
100	return ProtectedGetPropertyAtIndex (idx);
101	}
102	};
103
104	static PropertyDefinition
105	g_properties[] =
106	{
107	{ "disable-memory-cache" , OptionValue::eTypeBoolean, false, DISABLE_MEM_CACHE_DEFAULTfalse, NULL__null, NULL__null, "Disable reading and caching of memory in fixed-size units." },
108	{ "extra-startup-command", OptionValue::eTypeArray , false, OptionValue::eTypeString, NULL__null, NULL__null, "A list containing extra commands understood by the particular process plugin used. "
109	"For instance, to turn on debugserver logging set this to \"QSetLogging:bitmask=LOG_DEFAULT;\"" },
110	{ "ignore-breakpoints-in-expressions", OptionValue::eTypeBoolean, true, true, NULL__null, NULL__null, "If true, breakpoints will be ignored during expression evaluation." },
111	{ "unwind-on-error-in-expressions", OptionValue::eTypeBoolean, true, true, NULL__null, NULL__null, "If true, errors in expression evaluation will unwind the stack back to the state before the call." },
112	{ "python-os-plugin-path", OptionValue::eTypeFileSpec, false, true, NULL__null, NULL__null, "A path to a python OS plug-in module file that contains a OperatingSystemPlugIn class." },
113	{ "stop-on-sharedlibrary-events" , OptionValue::eTypeBoolean, true, false, NULL__null, NULL__null, "If true, stop when a shared library is loaded or unloaded." },
114	{ "detach-keeps-stopped" , OptionValue::eTypeBoolean, true, false, NULL__null, NULL__null, "If true, detach will attempt to keep the process stopped." },
115	{ "memory-cache-line-size" , OptionValue::eTypeUInt64, false, 512, NULL__null, NULL__null, "The memory cache line size" },
116	{ NULL__null , OptionValue::eTypeInvalid, false, 0, NULL__null, NULL__null, NULL__null }
117	};
118
119	enum {
120	ePropertyDisableMemCache,
121	ePropertyExtraStartCommand,
122	ePropertyIgnoreBreakpointsInExpressions,
123	ePropertyUnwindOnErrorInExpressions,
124	ePropertyPythonOSPluginPath,
125	ePropertyStopOnSharedLibraryEvents,
126	ePropertyDetachKeepsStopped,
127	ePropertyMemCacheLineSize
128	};
129
130	ProcessProperties::ProcessProperties (bool is_global) :
131	Properties ()
132	{
133	if (is_global)
134	{
135	m_collection_sp.reset (new ProcessOptionValueProperties(ConstString("process")));
136	m_collection_sp->Initialize(g_properties);
137	m_collection_sp->AppendProperty(ConstString("thread"),
138	ConstString("Settings specific to threads."),
139	true,
140	Thread::GetGlobalProperties()->GetValueProperties());
141	}
142	else
143	m_collection_sp.reset (new ProcessOptionValueProperties(Process::GetGlobalProperties().get()));
144	}
145
146	ProcessProperties::~ProcessProperties()
147	{
148	}
149
150	bool
151	ProcessProperties::GetDisableMemoryCache() const
152	{
153	const uint32_t idx = ePropertyDisableMemCache;
154	return m_collection_sp->GetPropertyAtIndexAsBoolean (NULL__null, idx, g_properties[idx].default_uint_value != 0);
155	}
156
157	uint64_t
158	ProcessProperties::GetMemoryCacheLineSize() const
159	{
160	const uint32_t idx = ePropertyMemCacheLineSize;
161	return m_collection_sp->GetPropertyAtIndexAsUInt64 (NULL__null, idx, g_properties[idx].default_uint_value);
162	}
163
164	Args
165	ProcessProperties::GetExtraStartupCommands () const
166	{
167	Args args;
168	const uint32_t idx = ePropertyExtraStartCommand;
169	m_collection_sp->GetPropertyAtIndexAsArgs(NULL__null, idx, args);
170	return args;
171	}
172
173	void
174	ProcessProperties::SetExtraStartupCommands (const Args &args)
175	{
176	const uint32_t idx = ePropertyExtraStartCommand;
177	m_collection_sp->SetPropertyAtIndexFromArgs(NULL__null, idx, args);
178	}
179
180	FileSpec
181	ProcessProperties::GetPythonOSPluginPath () const
182	{
183	const uint32_t idx = ePropertyPythonOSPluginPath;
184	return m_collection_sp->GetPropertyAtIndexAsFileSpec(NULL__null, idx);
185	}
186
187	void
188	ProcessProperties::SetPythonOSPluginPath (const FileSpec &file)
189	{
190	const uint32_t idx = ePropertyPythonOSPluginPath;
191	m_collection_sp->SetPropertyAtIndexAsFileSpec(NULL__null, idx, file);
192	}
193
194
195	bool
196	ProcessProperties::GetIgnoreBreakpointsInExpressions () const
197	{
198	const uint32_t idx = ePropertyIgnoreBreakpointsInExpressions;
199	return m_collection_sp->GetPropertyAtIndexAsBoolean(NULL__null, idx, g_properties[idx].default_uint_value != 0);
200	}
201
202	void
203	ProcessProperties::SetIgnoreBreakpointsInExpressions (bool ignore)
204	{
205	const uint32_t idx = ePropertyIgnoreBreakpointsInExpressions;
206	m_collection_sp->SetPropertyAtIndexAsBoolean(NULL__null, idx, ignore);
207	}
208
209	bool
210	ProcessProperties::GetUnwindOnErrorInExpressions () const
211	{
212	const uint32_t idx = ePropertyUnwindOnErrorInExpressions;
213	return m_collection_sp->GetPropertyAtIndexAsBoolean(NULL__null, idx, g_properties[idx].default_uint_value != 0);
214	}
215
216	void
217	ProcessProperties::SetUnwindOnErrorInExpressions (bool ignore)
218	{
219	const uint32_t idx = ePropertyUnwindOnErrorInExpressions;
220	m_collection_sp->SetPropertyAtIndexAsBoolean(NULL__null, idx, ignore);
221	}
222
223	bool
224	ProcessProperties::GetStopOnSharedLibraryEvents () const
225	{
226	const uint32_t idx = ePropertyStopOnSharedLibraryEvents;
227	return m_collection_sp->GetPropertyAtIndexAsBoolean(NULL__null, idx, g_properties[idx].default_uint_value != 0);
228	}
229
230	void
231	ProcessProperties::SetStopOnSharedLibraryEvents (bool stop)
232	{
233	const uint32_t idx = ePropertyStopOnSharedLibraryEvents;
234	m_collection_sp->SetPropertyAtIndexAsBoolean(NULL__null, idx, stop);
235	}
236
237	bool
238	ProcessProperties::GetDetachKeepsStopped () const
239	{
240	const uint32_t idx = ePropertyDetachKeepsStopped;
241	return m_collection_sp->GetPropertyAtIndexAsBoolean(NULL__null, idx, g_properties[idx].default_uint_value != 0);
242	}
243
244	void
245	ProcessProperties::SetDetachKeepsStopped (bool stop)
246	{
247	const uint32_t idx = ePropertyDetachKeepsStopped;
248	m_collection_sp->SetPropertyAtIndexAsBoolean(NULL__null, idx, stop);
249	}
250
251	void
252	ProcessInstanceInfo::Dump (Stream &s, Platform *platform) const
253	{
254	const char *cstr;
255	if (m_pid != LLDB_INVALID_PROCESS_ID0)
256	s.Printf (" pid = %" PRIu64"l" "u" "\n", m_pid);
257
258	if (m_parent_pid != LLDB_INVALID_PROCESS_ID0)
259	s.Printf (" parent = %" PRIu64"l" "u" "\n", m_parent_pid);
260
261	if (m_executable)
262	{
263	s.Printf (" name = %s\n", m_executable.GetFilename().GetCString());
264	s.PutCString (" file = ");
265	m_executable.Dump(&s);
266	s.EOL();
267	}
268	const uint32_t argc = m_arguments.GetArgumentCount();
269	if (argc > 0)
270	{
271	for (uint32_t i=0; i<argc; i++)
272	{
273	const char *arg = m_arguments.GetArgumentAtIndex(i);
274	if (i < 10)
275	s.Printf (" arg[%u] = %s\n", i, arg);
276	else
277	s.Printf ("arg[%u] = %s\n", i, arg);
278	}
279	}
280
281	const uint32_t envc = m_environment.GetArgumentCount();
282	if (envc > 0)
283	{
284	for (uint32_t i=0; i<envc; i++)
285	{
286	const char *env = m_environment.GetArgumentAtIndex(i);
287	if (i < 10)
288	s.Printf (" env[%u] = %s\n", i, env);
289	else
290	s.Printf ("env[%u] = %s\n", i, env);
291	}
292	}
293
294	if (m_arch.IsValid())
295	s.Printf (" arch = %s\n", m_arch.GetTriple().str().c_str());
296
297	if (m_uid != UINT32_MAX(4294967295U))
298	{
299	cstr = platform->GetUserName (m_uid);
300	s.Printf (" uid = %-5u (%s)\n", m_uid, cstr ? cstr : "");
301	}
302	if (m_gid != UINT32_MAX(4294967295U))
303	{
304	cstr = platform->GetGroupName (m_gid);
305	s.Printf (" gid = %-5u (%s)\n", m_gid, cstr ? cstr : "");
306	}
307	if (m_euid != UINT32_MAX(4294967295U))
308	{
309	cstr = platform->GetUserName (m_euid);
310	s.Printf (" euid = %-5u (%s)\n", m_euid, cstr ? cstr : "");
311	}
312	if (m_egid != UINT32_MAX(4294967295U))
313	{
314	cstr = platform->GetGroupName (m_egid);
315	s.Printf (" egid = %-5u (%s)\n", m_egid, cstr ? cstr : "");
316	}
317	}
318
319	void
320	ProcessInstanceInfo::DumpTableHeader (Stream &s, Platform *platform, bool show_args, bool verbose)
321	{
322	const char *label;
323	if (show_args \|\| verbose)
324	label = "ARGUMENTS";
325	else
326	label = "NAME";
327
328	if (verbose)
329	{
330	s.Printf ("PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE %s\n", label);
331	s.PutCString ("====== ====== ========== ========== ========== ========== ======================== ============================\n");
332	}
333	else
334	{
335	s.Printf ("PID PARENT USER TRIPLE %s\n", label);
336	s.PutCString ("====== ====== ========== ======================== ============================\n");
337	}
338	}
339
340	void
341	ProcessInstanceInfo::DumpAsTableRow (Stream &s, Platform *platform, bool show_args, bool verbose) const
342	{
343	if (m_pid != LLDB_INVALID_PROCESS_ID0)
344	{
345	const char *cstr;
346	s.Printf ("%-6" PRIu64"l" "u" " %-6" PRIu64"l" "u" " ", m_pid, m_parent_pid);
347
348
349	if (verbose)
350	{
351	cstr = platform->GetUserName (m_uid);
352	if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed
353	s.Printf ("%-10s ", cstr);
354	else
355	s.Printf ("%-10u ", m_uid);
356
357	cstr = platform->GetGroupName (m_gid);
358	if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed
359	s.Printf ("%-10s ", cstr);
360	else
361	s.Printf ("%-10u ", m_gid);
362
363	cstr = platform->GetUserName (m_euid);
364	if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed
365	s.Printf ("%-10s ", cstr);
366	else
367	s.Printf ("%-10u ", m_euid);
368
369	cstr = platform->GetGroupName (m_egid);
370	if (cstr && cstr[0]) // Watch for empty string that indicates lookup failed
371	s.Printf ("%-10s ", cstr);
372	else
373	s.Printf ("%-10u ", m_egid);
374	s.Printf ("%-24s ", m_arch.IsValid() ? m_arch.GetTriple().str().c_str() : "");
375	}
376	else
377	{
378	s.Printf ("%-10s %-24s ",
379	platform->GetUserName (m_euid),
380	m_arch.IsValid() ? m_arch.GetTriple().str().c_str() : "");
381	}
382
383	if (verbose \|\| show_args)
384	{
385	const uint32_t argc = m_arguments.GetArgumentCount();
386	if (argc > 0)
387	{
388	for (uint32_t i=0; i<argc; i++)
389	{
390	if (i > 0)
391	s.PutChar (' ');
392	s.PutCString (m_arguments.GetArgumentAtIndex(i));
393	}
394	}
395	}
396	else
397	{
398	s.PutCString (GetName());
399	}
400
401	s.EOL();
402	}
403	}
404
405	Error
406	ProcessLaunchCommandOptions::SetOptionValue (uint32_t option_idx, const char *option_arg)
407	{
408	Error error;
409	const int short_option = m_getopt_table[option_idx].val;
410
411	switch (short_option)
412	{
413	case 's': // Stop at program entry point
414	launch_info.GetFlags().Set (eLaunchFlagStopAtEntry);
415	break;
416
417	case 'i': // STDIN for read only
418	{
419	FileAction action;
420	if (action.Open (STDIN_FILENO0, option_arg, true, false))
421	launch_info.AppendFileAction (action);
422	break;
423	}
424
425	case 'o': // Open STDOUT for write only
426	{
427	FileAction action;
428	if (action.Open (STDOUT_FILENO1, option_arg, false, true))
429	launch_info.AppendFileAction (action);
430	break;
431	}
432
433	case 'e': // STDERR for write only
434	{
435	FileAction action;
436	if (action.Open (STDERR_FILENO2, option_arg, false, true))
437	launch_info.AppendFileAction (action);
438	break;
439	}
440
441	case 'p': // Process plug-in name
442	launch_info.SetProcessPluginName (option_arg);
443	break;
444
445	case 'n': // Disable STDIO
446	{
447	FileAction action;
448	if (action.Open (STDIN_FILENO0, "/dev/null", true, false))
449	launch_info.AppendFileAction (action);
450	if (action.Open (STDOUT_FILENO1, "/dev/null", false, true))
451	launch_info.AppendFileAction (action);
452	if (action.Open (STDERR_FILENO2, "/dev/null", false, true))
453	launch_info.AppendFileAction (action);
454	break;
455	}
456
457	case 'w':
458	launch_info.SetWorkingDirectory (option_arg);
459	break;
460
461	case 't': // Open process in new terminal window
462	launch_info.GetFlags().Set (eLaunchFlagLaunchInTTY);
463	break;
464
465	case 'a':
466	if (!launch_info.GetArchitecture().SetTriple (option_arg, m_interpreter.GetPlatform(true).get()))
467	launch_info.GetArchitecture().SetTriple (option_arg);
468	break;
469
470	case 'A': // Disable ASLR.
471	{
472	bool success;
473	const bool disable_aslr_arg = Args::StringToBoolean (option_arg, true, &success);
474	if (success)
475	disable_aslr = disable_aslr_arg ? eLazyBoolYes : eLazyBoolNo;
476	else
477	error.SetErrorStringWithFormat ("Invalid boolean value for disable-aslr option: '%s'", option_arg ? option_arg : "<null>");
478	break;
479	}
480
481	case 'c':
482	if (option_arg && option_arg[0])
483	launch_info.SetShell (option_arg);
484	else
485	launch_info.SetShell (LLDB_DEFAULT_SHELL"/bin/sh");
486	break;
487
488	case 'v':
489	launch_info.GetEnvironmentEntries().AppendArgument(option_arg);
490	break;
491
492	default:
493	error.SetErrorStringWithFormat("unrecognized short option character '%c'", short_option);
494	break;
495	}
496	return error;
497	}
498
499	OptionDefinition
500	ProcessLaunchCommandOptions::g_option_table[] =
501	{
502	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "stop-at-entry", 's', OptionParser::eNoArgument, NULL__null, NULL__null, 0, eArgTypeNone, "Stop at the entry point of the program when launching a process."},
503	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "disable-aslr", 'A', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeBoolean, "Set whether to disable address space layout randomization when launching a process."},
504	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "plugin", 'p', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypePlugin, "Name of the process plugin you want to use."},
505	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "working-dir", 'w', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeDirectoryName, "Set the current working directory to <path> when running the inferior."},
506	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "arch", 'a', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeArchitecture, "Set the architecture for the process to launch when ambiguous."},
507	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "environment", 'v', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeNone, "Specify an environment variable name/value string (--environment NAME=VALUE). Can be specified multiple times for subsequent environment entries."},
508	{ LLDB_OPT_SET_ALL0xFFFFFFFFU, false, "shell", 'c', OptionParser::eOptionalArgument, NULL__null, NULL__null, 0, eArgTypeFilename, "Run the process in a shell (not supported on all platforms)."},
509
510	{ LLDB_OPT_SET_1(1U << 0) , false, "stdin", 'i', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeFilename, "Redirect stdin for the process to <filename>."},
511	{ LLDB_OPT_SET_1(1U << 0) , false, "stdout", 'o', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeFilename, "Redirect stdout for the process to <filename>."},
512	{ LLDB_OPT_SET_1(1U << 0) , false, "stderr", 'e', OptionParser::eRequiredArgument, NULL__null, NULL__null, 0, eArgTypeFilename, "Redirect stderr for the process to <filename>."},
513
514	{ LLDB_OPT_SET_2(1U << 1) , false, "tty", 't', OptionParser::eNoArgument, NULL__null, NULL__null, 0, eArgTypeNone, "Start the process in a terminal (not supported on all platforms)."},
515
516	{ LLDB_OPT_SET_3(1U << 2) , false, "no-stdio", 'n', OptionParser::eNoArgument, NULL__null, NULL__null, 0, eArgTypeNone, "Do not set up for terminal I/O to go to running process."},
517
518	{ 0 , false, NULL__null, 0, 0, NULL__null, NULL__null, 0, eArgTypeNone, NULL__null }
519	};
520
521
522
523	bool
524	ProcessInstanceInfoMatch::NameMatches (const char *process_name) const
525	{
526	if (m_name_match_type == eNameMatchIgnore \|\| process_name == NULL__null)
527	return true;
528	const char *match_name = m_match_info.GetName();
529	if (!match_name)
530	return true;
531
532	return lldb_private::NameMatches (process_name, m_name_match_type, match_name);
533	}
534
535	bool
536	ProcessInstanceInfoMatch::Matches (const ProcessInstanceInfo &proc_info) const
537	{
538	if (!NameMatches (proc_info.GetName()))
539	return false;
540
541	if (m_match_info.ProcessIDIsValid() &&
542	m_match_info.GetProcessID() != proc_info.GetProcessID())
543	return false;
544
545	if (m_match_info.ParentProcessIDIsValid() &&
546	m_match_info.GetParentProcessID() != proc_info.GetParentProcessID())
547	return false;
548
549	if (m_match_info.UserIDIsValid () &&
550	m_match_info.GetUserID() != proc_info.GetUserID())
551	return false;
552
553	if (m_match_info.GroupIDIsValid () &&
554	m_match_info.GetGroupID() != proc_info.GetGroupID())
555	return false;
556
557	if (m_match_info.EffectiveUserIDIsValid () &&
558	m_match_info.GetEffectiveUserID() != proc_info.GetEffectiveUserID())
559	return false;
560
561	if (m_match_info.EffectiveGroupIDIsValid () &&
562	m_match_info.GetEffectiveGroupID() != proc_info.GetEffectiveGroupID())
563	return false;
564
565	if (m_match_info.GetArchitecture().IsValid() &&
566	!m_match_info.GetArchitecture().IsCompatibleMatch(proc_info.GetArchitecture()))
567	return false;
568	return true;
569	}
570
571	bool
572	ProcessInstanceInfoMatch::MatchAllProcesses () const
573	{
574	if (m_name_match_type != eNameMatchIgnore)
575	return false;
576
577	if (m_match_info.ProcessIDIsValid())
578	return false;
579
580	if (m_match_info.ParentProcessIDIsValid())
581	return false;
582
583	if (m_match_info.UserIDIsValid ())
584	return false;
585
586	if (m_match_info.GroupIDIsValid ())
587	return false;
588
589	if (m_match_info.EffectiveUserIDIsValid ())
590	return false;
591
592	if (m_match_info.EffectiveGroupIDIsValid ())
593	return false;
594
595	if (m_match_info.GetArchitecture().IsValid())
596	return false;
597
598	if (m_match_all_users)
599	return false;
600
601	return true;
602
603	}
604
605	void
606	ProcessInstanceInfoMatch::Clear()
607	{
608	m_match_info.Clear();
609	m_name_match_type = eNameMatchIgnore;
610	m_match_all_users = false;
611	}
612
613	ProcessSP
614	Process::FindPlugin (Target &target, const char plugin_name, Listener &listener, const FileSpec crash_file_path)
615	{
616	static uint32_t g_process_unique_id = 0;
617
618	ProcessSP process_sp;
619	ProcessCreateInstance create_callback = NULL__null;
620	if (plugin_name)
621	{
622	ConstString const_plugin_name(plugin_name);
623	create_callback = PluginManager::GetProcessCreateCallbackForPluginName (const_plugin_name);
624	if (create_callback)
625	{
626	process_sp = create_callback(target, listener, crash_file_path);
627	if (process_sp)
628	{
629	if (process_sp->CanDebug(target, true))
630	{
631	process_sp->m_process_unique_id = ++g_process_unique_id;
632	}
633	else
634	process_sp.reset();
635	}
636	}
637	}
638	else
639	{
640	for (uint32_t idx = 0; (create_callback = PluginManager::GetProcessCreateCallbackAtIndex(idx)) != NULL__null; ++idx)
641	{
642	process_sp = create_callback(target, listener, crash_file_path);
643	if (process_sp)
644	{
645	if (process_sp->CanDebug(target, false))
646	{
647	process_sp->m_process_unique_id = ++g_process_unique_id;
648	break;
649	}
650	else
651	process_sp.reset();
652	}
653	}
654	}
655	return process_sp;
656	}
657
658	ConstString &
659	Process::GetStaticBroadcasterClass ()
660	{
661	static ConstString class_name ("lldb.process");
662	return class_name;
663	}
664
665	//----------------------------------------------------------------------
666	// Process constructor
667	//----------------------------------------------------------------------
668	Process::Process(Target &target, Listener &listener) :
669	Process(target, listener, Host::GetUnixSignals ())
670	{
671	// This constructor just delegates to the full Process constructor,
672	// defaulting to using the Host's UnixSignals.
673	}
674
675	Process::Process(Target &target, Listener &listener, const UnixSignalsSP &unix_signals_sp) :
676	ProcessProperties (false),
677	UserID (LLDB_INVALID_PROCESS_ID0),
678	Broadcaster (&(target.GetDebugger()), "lldb.process"),
679	m_target (target),
680	m_public_state (eStateUnloaded),
681	m_private_state (eStateUnloaded),
682	m_private_state_broadcaster (NULL__null, "lldb.process.internal_state_broadcaster"),
683	m_private_state_control_broadcaster (NULL__null, "lldb.process.internal_state_control_broadcaster"),
684	m_private_state_listener ("lldb.process.internal_state_listener"),
685	m_private_state_control_wait(),
686	m_mod_id (),
687	m_process_unique_id(0),
688	m_thread_index_id (0),
689	m_thread_id_to_index_id_map (),
690	m_exit_status (-1),
691	m_exit_string (),
692	m_exit_status_mutex(),
693	m_thread_mutex (Mutex::eMutexTypeRecursive),
694	m_thread_list_real (this),
695	m_thread_list (this),
696	m_extended_thread_list (this),
697	m_extended_thread_stop_id (0),
698	m_queue_list (this),
699	m_queue_list_stop_id (0),
700	m_notifications (),
701	m_image_tokens (),
702	m_listener (listener),
703	m_breakpoint_site_list (),
704	m_dynamic_checkers_ap (),
705	m_unix_signals_sp (unix_signals_sp),
706	m_abi_sp (),
707	m_process_input_reader (),
708	m_stdio_communication ("process.stdio"),
709	m_stdio_communication_mutex (Mutex::eMutexTypeRecursive),
710	m_stdout_data (),
711	m_stderr_data (),
712	m_profile_data_comm_mutex (Mutex::eMutexTypeRecursive),
713	m_profile_data (),
714	m_iohandler_sync (false),
715	m_memory_cache (*this),
716	m_allocated_memory_cache (*this),
717	m_should_detach (false),
718	m_next_event_action_ap(),
719	m_public_run_lock (),
720	m_private_run_lock (),
721	m_currently_handling_event(false),
722	m_finalize_called(false),
723	m_clear_thread_plans_on_stop (false),
724	m_force_next_event_delivery(false),
725	m_last_broadcast_state (eStateInvalid),
726	m_destroy_in_process (false),
727	m_can_jit(eCanJITDontKnow)
728	{
729	CheckInWithManager ();
730
731	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT(1u << 11)));
732	if (log)
733	log->Printf ("%p Process::Process()", static_cast<void*>(this));
734
735	if (!m_unix_signals_sp)
736	m_unix_signals_sp.reset (new UnixSignals ());
737
738	SetEventName (eBroadcastBitStateChanged, "state-changed");
739	SetEventName (eBroadcastBitInterrupt, "interrupt");
740	SetEventName (eBroadcastBitSTDOUT, "stdout-available");
741	SetEventName (eBroadcastBitSTDERR, "stderr-available");
742	SetEventName (eBroadcastBitProfileData, "profile-data-available");
743
744	m_private_state_control_broadcaster.SetEventName (eBroadcastInternalStateControlStop , "control-stop" );
745	m_private_state_control_broadcaster.SetEventName (eBroadcastInternalStateControlPause , "control-pause" );
746	m_private_state_control_broadcaster.SetEventName (eBroadcastInternalStateControlResume, "control-resume");
747
748	listener.StartListeningForEvents (this,
749	eBroadcastBitStateChanged \|
750	eBroadcastBitInterrupt \|
751	eBroadcastBitSTDOUT \|
752	eBroadcastBitSTDERR \|
753	eBroadcastBitProfileData);
754
755	m_private_state_listener.StartListeningForEvents(&m_private_state_broadcaster,
756	eBroadcastBitStateChanged \|
757	eBroadcastBitInterrupt);
758
759	m_private_state_listener.StartListeningForEvents(&m_private_state_control_broadcaster,
760	eBroadcastInternalStateControlStop \|
761	eBroadcastInternalStateControlPause \|
762	eBroadcastInternalStateControlResume);
763	// We need something valid here, even if just the default UnixSignalsSP.
764	assert (m_unix_signals_sp && "null m_unix_signals_sp after initialization")((m_unix_signals_sp && "null m_unix_signals_sp after initialization" ) ? static_cast<void> (0) : __assert_fail ("m_unix_signals_sp && \"null m_unix_signals_sp after initialization\"" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 764, __PRETTY_FUNCTION__));
765	}
766
767	//----------------------------------------------------------------------
768	// Destructor
769	//----------------------------------------------------------------------
770	Process::~Process()
771	{
772	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_OBJECT(1u << 11)));
773	if (log)
774	log->Printf ("%p Process::~Process()", static_cast<void*>(this));
775	StopPrivateStateThread();
776
777	// ThreadList::Clear() will try to acquire this process's mutex, so
778	// explicitly clear the thread list here to ensure that the mutex
779	// is not destroyed before the thread list.
780	m_thread_list.Clear();
781	}
782
783	const ProcessPropertiesSP &
784	Process::GetGlobalProperties()
785	{
786	static ProcessPropertiesSP g_settings_sp;
787	if (!g_settings_sp)
788	g_settings_sp.reset (new ProcessProperties (true));
789	return g_settings_sp;
790	}
791
792	void
793	Process::Finalize()
794	{
795	switch (GetPrivateState())
796	{
797	case eStateConnected:
798	case eStateAttaching:
799	case eStateLaunching:
800	case eStateStopped:
801	case eStateRunning:
802	case eStateStepping:
803	case eStateCrashed:
804	case eStateSuspended:
805	if (GetShouldDetach())
806	{
807	// FIXME: This will have to be a process setting:
808	bool keep_stopped = false;
809	Detach(keep_stopped);
810	}
811	else
812	Destroy();
813	break;
814
815	case eStateInvalid:
816	case eStateUnloaded:
817	case eStateDetached:
818	case eStateExited:
819	break;
820	}
821
822	// Clear our broadcaster before we proceed with destroying
823	Broadcaster::Clear();
824
825	// Do any cleanup needed prior to being destructed... Subclasses
826	// that override this method should call this superclass method as well.
827
828	// We need to destroy the loader before the derived Process class gets destroyed
829	// since it is very likely that undoing the loader will require access to the real process.
830	m_dynamic_checkers_ap.reset();
831	m_abi_sp.reset();
832	m_os_ap.reset();
833	m_system_runtime_ap.reset();
834	m_dyld_ap.reset();
835	m_jit_loaders_ap.reset();
836	m_thread_list_real.Destroy();
837	m_thread_list.Destroy();
838	m_extended_thread_list.Destroy();
839	m_queue_list.Clear();
840	m_queue_list_stop_id = 0;
841	std::vector<Notifications> empty_notifications;
842	m_notifications.swap(empty_notifications);
843	m_image_tokens.clear();
844	m_memory_cache.Clear();
845	m_allocated_memory_cache.Clear();
846	m_language_runtimes.clear();
847	m_instrumentation_runtimes.clear();
848	m_next_event_action_ap.reset();
849	//#ifdef LLDB_CONFIGURATION_DEBUG
850	// StreamFile s(stdout, false);
851	// EventSP event_sp;
852	// while (m_private_state_listener.GetNextEvent(event_sp))
853	// {
854	// event_sp->Dump (&s);
855	// s.EOL();
856	// }
857	//#endif
858	// We have to be very careful here as the m_private_state_listener might
859	// contain events that have ProcessSP values in them which can keep this
860	// process around forever. These events need to be cleared out.
861	m_private_state_listener.Clear();
862	m_public_run_lock.TrySetRunning(); // This will do nothing if already locked
863	m_public_run_lock.SetStopped();
864	m_private_run_lock.TrySetRunning(); // This will do nothing if already locked
865	m_private_run_lock.SetStopped();
866	m_finalize_called = true;
867	}
868
869	void
870	Process::RegisterNotificationCallbacks (const Notifications& callbacks)
871	{
872	m_notifications.push_back(callbacks);
873	if (callbacks.initialize != NULL__null)
874	callbacks.initialize (callbacks.baton, this);
875	}
876
877	bool
878	Process::UnregisterNotificationCallbacks(const Notifications& callbacks)
879	{
880	std::vector<Notifications>::iterator pos, end = m_notifications.end();
881	for (pos = m_notifications.begin(); pos != end; ++pos)
882	{
883	if (pos->baton == callbacks.baton &&
884	pos->initialize == callbacks.initialize &&
885	pos->process_state_changed == callbacks.process_state_changed)
886	{
887	m_notifications.erase(pos);
888	return true;
889	}
890	}
891	return false;
892	}
893
894	void
895	Process::SynchronouslyNotifyStateChanged (StateType state)
896	{
897	std::vector<Notifications>::iterator notification_pos, notification_end = m_notifications.end();
898	for (notification_pos = m_notifications.begin(); notification_pos != notification_end; ++notification_pos)
899	{
900	if (notification_pos->process_state_changed)
901	notification_pos->process_state_changed (notification_pos->baton, this, state);
902	}
903	}
904
905	// FIXME: We need to do some work on events before the general Listener sees them.
906	// For instance if we are continuing from a breakpoint, we need to ensure that we do
907	// the little "insert real insn, step & stop" trick. But we can't do that when the
908	// event is delivered by the broadcaster - since that is done on the thread that is
909	// waiting for new events, so if we needed more than one event for our handling, we would
910	// stall. So instead we do it when we fetch the event off of the queue.
911	//
912
913	StateType
914	Process::GetNextEvent (EventSP &event_sp)
915	{
916	StateType state = eStateInvalid;
917
918	if (m_listener.GetNextEventForBroadcaster (this, event_sp) && event_sp)
919	state = Process::ProcessEventData::GetStateFromEvent (event_sp.get());
920
921	return state;
922	}
923
924	bool
925	Process::SyncIOHandler (uint64_t timeout_msec)
926	{
927	bool timed_out = false;
928
929	// don't sync (potentially context switch) in case where there is no process IO
930	if (m_process_input_reader)
931	{
932	TimeValue timeout = TimeValue::Now();
933	timeout.OffsetWithMicroSeconds(timeout_msec*1000);
934
935	m_iohandler_sync.WaitForValueEqualTo(true, &timeout, &timed_out);
936
937	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
938	if(log)
939	{
940	if(timed_out)
941	log->Printf ("Process::%s pid %" PRIu64"l" "u" " (timeout=%" PRIu64"l" "u" "ms): FAIL", __FUNCTION__, GetID (), timeout_msec);
942	else
943	log->Printf ("Process::%s pid %" PRIu64"l" "u" ": SUCCESS", __FUNCTION__, GetID ());
944	}
945
946	// reset sync one-shot so it will be ready for next launch
947	m_iohandler_sync.SetValue(false, eBroadcastNever);
948	}
949
950	return !timed_out;
951	}
952
953	StateType
954	Process::WaitForProcessToStop (const TimeValue timeout, lldb::EventSP event_sp_ptr, bool wait_always, Listener *hijack_listener)
955	{
956	// We can't just wait for a "stopped" event, because the stopped event may have restarted the target.
957	// We have to actually check each event, and in the case of a stopped event check the restarted flag
958	// on the event.
959	if (event_sp_ptr)
960	event_sp_ptr->reset();
961	StateType state = GetState();
962	// If we are exited or detached, we won't ever get back to any
963	// other valid state...
964	if (state == eStateDetached \|\| state == eStateExited)
965	return state;
966
967	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
968	if (log)
969	log->Printf ("Process::%s (timeout = %p)", __FUNCTION__,
970	static_cast<const void*>(timeout));
971
972	if (!wait_always &&
973	StateIsStoppedState(state, true) &&
974	StateIsStoppedState(GetPrivateState(), true)) {
975	if (log)
976	log->Printf("Process::%s returning without waiting for events; process private and public states are already 'stopped'.",
977	__FUNCTION__);
978	return state;
979	}
980
981	while (state != eStateInvalid)
982	{
983	EventSP event_sp;
984	state = WaitForStateChangedEvents (timeout, event_sp, hijack_listener);
985	if (event_sp_ptr && event_sp)
986	*event_sp_ptr = event_sp;
987
988	switch (state)
989	{
990	case eStateCrashed:
991	case eStateDetached:
992	case eStateExited:
993	case eStateUnloaded:
994	// We need to toggle the run lock as this won't get done in
995	// SetPublicState() if the process is hijacked.
996	if (hijack_listener)
997	m_public_run_lock.SetStopped();
998	return state;
999	case eStateStopped:
1000	if (Process::ProcessEventData::GetRestartedFromEvent(event_sp.get()))
1001	continue;
1002	else
1003	{
1004	// We need to toggle the run lock as this won't get done in
1005	// SetPublicState() if the process is hijacked.
1006	if (hijack_listener)
1007	m_public_run_lock.SetStopped();
1008	return state;
1009	}
1010	default:
1011	continue;
1012	}
1013	}
1014	return state;
1015	}
1016
1017
1018	StateType
1019	Process::WaitForState
1020	(
1021	const TimeValue *timeout,
1022	const StateType *match_states,
1023	const uint32_t num_match_states
1024	)
1025	{
1026	EventSP event_sp;
1027	uint32_t i;
1028	StateType state = GetState();
1029	while (state != eStateInvalid)
1030	{
1031	// If we are exited or detached, we won't ever get back to any
1032	// other valid state...
1033	if (state == eStateDetached \|\| state == eStateExited)
1034	return state;
1035
1036	state = WaitForStateChangedEvents (timeout, event_sp, NULL__null);
1037
1038	for (i=0; i<num_match_states; ++i)
1039	{
1040	if (match_states[i] == state)
1041	return state;
1042	}
1043	}
1044	return state;
1045	}
1046
1047	bool
1048	Process::HijackProcessEvents (Listener *listener)
1049	{
1050	if (listener != NULL__null)
1051	{
1052	return HijackBroadcaster(listener, eBroadcastBitStateChanged \| eBroadcastBitInterrupt);
1053	}
1054	else
1055	return false;
1056	}
1057
1058	void
1059	Process::RestoreProcessEvents ()
1060	{
1061	RestoreBroadcaster();
1062	}
1063
1064	bool
1065	Process::HijackPrivateProcessEvents (Listener *listener)
1066	{
1067	if (listener != NULL__null)
1068	{
1069	return m_private_state_broadcaster.HijackBroadcaster(listener, eBroadcastBitStateChanged \| eBroadcastBitInterrupt);
1070	}
1071	else
1072	return false;
1073	}
1074
1075	void
1076	Process::RestorePrivateProcessEvents ()
1077	{
1078	m_private_state_broadcaster.RestoreBroadcaster();
1079	}
1080
1081	StateType
1082	Process::WaitForStateChangedEvents (const TimeValue timeout, EventSP &event_sp, Listener hijack_listener)
1083	{
1084	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
1085
1086	if (log)
1087	log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__,
1088	static_cast<const void*>(timeout));
1089
1090	Listener *listener = hijack_listener;
1091	if (listener == NULL__null)
1092	listener = &m_listener;
1093
1094	StateType state = eStateInvalid;
1095	if (listener->WaitForEventForBroadcasterWithType (timeout,
1096	this,
1097	eBroadcastBitStateChanged \| eBroadcastBitInterrupt,
1098	event_sp))
1099	{
1100	if (event_sp && event_sp->GetType() == eBroadcastBitStateChanged)
1101	state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
1102	else if (log)
1103	log->Printf ("Process::%s got no event or was interrupted.", __FUNCTION__);
1104	}
1105
1106	if (log)
1107	log->Printf ("Process::%s (timeout = %p, event_sp) => %s",
1108	__FUNCTION__, static_cast<const void*>(timeout),
1109	StateAsCString(state));
1110	return state;
1111	}
1112
1113	Event *
1114	Process::PeekAtStateChangedEvents ()
1115	{
1116	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
1117
1118	if (log)
1119	log->Printf ("Process::%s...", __FUNCTION__);
1120
1121	Event *event_ptr;
1122	event_ptr = m_listener.PeekAtNextEventForBroadcasterWithType (this,
1123	eBroadcastBitStateChanged);
1124	if (log)
1125	{
1126	if (event_ptr)
1127	{
1128	log->Printf ("Process::%s (event_ptr) => %s",
1129	__FUNCTION__,
1130	StateAsCString(ProcessEventData::GetStateFromEvent (event_ptr)));
1131	}
1132	else
1133	{
1134	log->Printf ("Process::%s no events found",
1135	__FUNCTION__);
1136	}
1137	}
1138	return event_ptr;
1139	}
1140
1141	StateType
1142	Process::WaitForStateChangedEventsPrivate (const TimeValue *timeout, EventSP &event_sp)
1143	{
1144	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
1145
1146	if (log)
1147	log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__,
1148	static_cast<const void*>(timeout));
1149
1150	StateType state = eStateInvalid;
1151	if (m_private_state_listener.WaitForEventForBroadcasterWithType (timeout,
1152	&m_private_state_broadcaster,
1153	eBroadcastBitStateChanged \| eBroadcastBitInterrupt,
1154	event_sp))
1155	if (event_sp && event_sp->GetType() == eBroadcastBitStateChanged)
1156	state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
1157
1158	// This is a bit of a hack, but when we wait here we could very well return
1159	// to the command-line, and that could disable the log, which would render the
1160	// log we got above invalid.
1161	if (log)
1162	log->Printf ("Process::%s (timeout = %p, event_sp) => %s",
1163	__FUNCTION__, static_cast<const void *>(timeout),
1164	state == eStateInvalid ? "TIMEOUT" : StateAsCString(state));
1165	return state;
1166	}
1167
1168	bool
1169	Process::WaitForEventsPrivate (const TimeValue *timeout, EventSP &event_sp, bool control_only)
1170	{
1171	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
1172
1173	if (log)
1174	log->Printf ("Process::%s (timeout = %p, event_sp)...", __FUNCTION__,
1175	static_cast<const void*>(timeout));
1176
1177	if (control_only)
1178	return m_private_state_listener.WaitForEventForBroadcaster(timeout, &m_private_state_control_broadcaster, event_sp);
1179	else
1180	return m_private_state_listener.WaitForEvent(timeout, event_sp);
1181	}
1182
1183	bool
1184	Process::IsRunning () const
1185	{
1186	return StateIsRunningState (m_public_state.GetValue());
1187	}
1188
1189	int
1190	Process::GetExitStatus ()
1191	{
1192	Mutex::Locker locker (m_exit_status_mutex);
1193
1194	if (m_public_state.GetValue() == eStateExited)
1195	return m_exit_status;
1196	return -1;
1197	}
1198
1199
1200	const char *
1201	Process::GetExitDescription ()
1202	{
1203	Mutex::Locker locker (m_exit_status_mutex);
1204
1205	if (m_public_state.GetValue() == eStateExited && !m_exit_string.empty())
1206	return m_exit_string.c_str();
1207	return NULL__null;
1208	}
1209
1210	bool
1211	Process::SetExitStatus (int status, const char *cstr)
1212	{
1213	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE(1u << 10) \| LIBLLDB_LOG_PROCESS(1u << 1)));
1214	if (log)
1215	log->Printf("Process::SetExitStatus (status=%i (0x%8.8x), description=%s%s%s)",
1216	status, status,
1217	cstr ? "\"" : "",
1218	cstr ? cstr : "NULL",
1219	cstr ? "\"" : "");
1220
1221	// We were already in the exited state
1222	if (m_private_state.GetValue() == eStateExited)
1223	{
1224	if (log)
1225	log->Printf("Process::SetExitStatus () ignoring exit status because state was already set to eStateExited");
1226	return false;
1227	}
1228
1229	// use a mutex to protect the status and string during updating
1230	{
1231	Mutex::Locker locker (m_exit_status_mutex);
1232
1233	m_exit_status = status;
1234	if (cstr)
1235	m_exit_string = cstr;
1236	else
1237	m_exit_string.clear();
1238	}
1239
1240	DidExit ();
1241
1242	SetPrivateState (eStateExited);
1243	return true;
1244	}
1245
1246	// This static callback can be used to watch for local child processes on
1247	// the current host. The child process exits, the process will be
1248	// found in the global target list (we want to be completely sure that the
1249	// lldb_private::Process doesn't go away before we can deliver the signal.
1250	bool
1251	Process::SetProcessExitStatus (void *callback_baton,
1252	lldb::pid_t pid,
1253	bool exited,
1254	int signo, // Zero for no signal
1255	int exit_status // Exit value of process if signal is zero
1256	)
1257	{
1258	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
1259	if (log)
1260	log->Printf ("Process::SetProcessExitStatus (baton=%p, pid=%" PRIu64"l" "u" ", exited=%i, signal=%i, exit_status=%i)\n",
1261	callback_baton,
1262	pid,
1263	exited,
1264	signo,
1265	exit_status);
1266
1267	if (exited)
1268	{
1269	TargetSP target_sp(Debugger::FindTargetWithProcessID (pid));
1270	if (target_sp)
1271	{
1272	ProcessSP process_sp (target_sp->GetProcessSP());
1273	if (process_sp)
1274	{
1275	const char *signal_cstr = NULL__null;
1276	if (signo)
1277	signal_cstr = process_sp->GetUnixSignals().GetSignalAsCString (signo);
1278
1279	process_sp->SetExitStatus (exit_status, signal_cstr);
1280	}
1281	}
1282	return true;
1283	}
1284	return false;
1285	}
1286
1287
1288	void
1289	Process::UpdateThreadListIfNeeded ()
1290	{
1291	const uint32_t stop_id = GetStopID();
1292	if (m_thread_list.GetSize(false) == 0 \|\| stop_id != m_thread_list.GetStopID())
1293	{
1294	const StateType state = GetPrivateState();
1295	if (StateIsStoppedState (state, true))
1296	{
1297	Mutex::Locker locker (m_thread_list.GetMutex ());
1298	// m_thread_list does have its own mutex, but we need to
1299	// hold onto the mutex between the call to UpdateThreadList(...)
1300	// and the os->UpdateThreadList(...) so it doesn't change on us
1301	ThreadList &old_thread_list = m_thread_list;
1302	ThreadList real_thread_list(this);
1303	ThreadList new_thread_list(this);
1304	// Always update the thread list with the protocol specific
1305	// thread list, but only update if "true" is returned
1306	if (UpdateThreadList (m_thread_list_real, real_thread_list))
1307	{
1308	// Don't call into the OperatingSystem to update the thread list if we are shutting down, since
1309	// that may call back into the SBAPI's, requiring the API lock which is already held by whoever is
1310	// shutting us down, causing a deadlock.
1311	if (!m_destroy_in_process)
1312	{
1313	OperatingSystem *os = GetOperatingSystem ();
1314	if (os)
1315	{
1316	// Clear any old backing threads where memory threads might have been
1317	// backed by actual threads from the lldb_private::Process subclass
1318	size_t num_old_threads = old_thread_list.GetSize(false);
1319	for (size_t i=0; i<num_old_threads; ++i)
1320	old_thread_list.GetThreadAtIndex(i, false)->ClearBackingThread();
1321
1322	// Now let the OperatingSystem plug-in update the thread list
1323	os->UpdateThreadList (old_thread_list, // Old list full of threads created by OS plug-in
1324	real_thread_list, // The actual thread list full of threads created by each lldb_private::Process subclass
1325	new_thread_list); // The new thread list that we will show to the user that gets filled in
1326	}
1327	else
1328	{
1329	// No OS plug-in, the new thread list is the same as the real thread list
1330	new_thread_list = real_thread_list;
1331	}
1332	}
1333
1334	m_thread_list_real.Update(real_thread_list);
1335	m_thread_list.Update (new_thread_list);
1336	m_thread_list.SetStopID (stop_id);
1337
1338	if (GetLastNaturalStopID () != m_extended_thread_stop_id)
1339	{
1340	// Clear any extended threads that we may have accumulated previously
1341	m_extended_thread_list.Clear();
1342	m_extended_thread_stop_id = GetLastNaturalStopID ();
1343
1344	m_queue_list.Clear();
1345	m_queue_list_stop_id = GetLastNaturalStopID ();
1346	}
1347	}
1348	}
1349	}
1350	}
1351
1352	void
1353	Process::UpdateQueueListIfNeeded ()
1354	{
1355	if (m_system_runtime_ap.get())
1356	{
1357	if (m_queue_list.GetSize() == 0 \|\| m_queue_list_stop_id != GetLastNaturalStopID())
1358	{
1359	const StateType state = GetPrivateState();
1360	if (StateIsStoppedState (state, true))
1361	{
1362	m_system_runtime_ap->PopulateQueueList (m_queue_list);
1363	m_queue_list_stop_id = GetLastNaturalStopID();
1364	}
1365	}
1366	}
1367	}
1368
1369	ThreadSP
1370	Process::CreateOSPluginThread (lldb::tid_t tid, lldb::addr_t context)
1371	{
1372	OperatingSystem *os = GetOperatingSystem ();
1373	if (os)
1374	return os->CreateThread(tid, context);
1375	return ThreadSP();
1376	}
1377
1378	uint32_t
1379	Process::GetNextThreadIndexID (uint64_t thread_id)
1380	{
1381	return AssignIndexIDToThread(thread_id);
1382	}
1383
1384	bool
1385	Process::HasAssignedIndexIDToThread(uint64_t thread_id)
1386	{
1387	std::map<uint64_t, uint32_t>::iterator iterator = m_thread_id_to_index_id_map.find(thread_id);
1388	if (iterator == m_thread_id_to_index_id_map.end())
1389	{
1390	return false;
1391	}
1392	else
1393	{
1394	return true;
1395	}
1396	}
1397
1398	uint32_t
1399	Process::AssignIndexIDToThread(uint64_t thread_id)
1400	{
1401	uint32_t result = 0;
1402	std::map<uint64_t, uint32_t>::iterator iterator = m_thread_id_to_index_id_map.find(thread_id);
1403	if (iterator == m_thread_id_to_index_id_map.end())
1404	{
1405	result = ++m_thread_index_id;
1406	m_thread_id_to_index_id_map[thread_id] = result;
1407	}
1408	else
1409	{
1410	result = iterator->second;
1411	}
1412
1413	return result;
1414	}
1415
1416	StateType
1417	Process::GetState()
1418	{
1419	// If any other threads access this we will need a mutex for it
1420	return m_public_state.GetValue ();
1421	}
1422
1423	void
1424	Process::SetPublicState (StateType new_state, bool restarted)
1425	{
1426	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE(1u << 10) \| LIBLLDB_LOG_PROCESS(1u << 1)));
1427	if (log)
1428	log->Printf("Process::SetPublicState (state = %s, restarted = %i)", StateAsCString(new_state), restarted);
1429	const StateType old_state = m_public_state.GetValue();
1430	m_public_state.SetValue (new_state);
1431
1432	// On the transition from Run to Stopped, we unlock the writer end of the
1433	// run lock. The lock gets locked in Resume, which is the public API
1434	// to tell the program to run.
1435	if (!IsHijackedForEvent(eBroadcastBitStateChanged))
1436	{
1437	if (new_state == eStateDetached)
1438	{
1439	if (log)
1440	log->Printf("Process::SetPublicState (%s) -- unlocking run lock for detach", StateAsCString(new_state));
1441	m_public_run_lock.SetStopped();
1442	}
1443	else
1444	{
1445	const bool old_state_is_stopped = StateIsStoppedState(old_state, false);
1446	const bool new_state_is_stopped = StateIsStoppedState(new_state, false);
1447	if ((old_state_is_stopped != new_state_is_stopped))
1448	{
1449	if (new_state_is_stopped && !restarted)
1450	{
1451	if (log)
1452	log->Printf("Process::SetPublicState (%s) -- unlocking run lock", StateAsCString(new_state));
1453	m_public_run_lock.SetStopped();
1454	}
1455	}
1456	}
1457	}
1458	}
1459
1460	Error
1461	Process::Resume ()
1462	{
1463	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE(1u << 10) \| LIBLLDB_LOG_PROCESS(1u << 1)));
1464	if (log)
1465	log->Printf("Process::Resume -- locking run lock");
1466	if (!m_public_run_lock.TrySetRunning())
1467	{
1468	Error error("Resume request failed - process still running.");
1469	if (log)
1470	log->Printf ("Process::Resume: -- TrySetRunning failed, not resuming.");
1471	return error;
1472	}
1473	return PrivateResume();
1474	}
1475
1476	StateType
1477	Process::GetPrivateState ()
1478	{
1479	return m_private_state.GetValue();
1480	}
1481
1482	void
1483	Process::SetPrivateState (StateType new_state)
1484	{
1485	if (m_finalize_called)
1486	return;
1487
1488	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STATE(1u << 10) \| LIBLLDB_LOG_PROCESS(1u << 1)));
1489	bool state_changed = false;
1490
1491	if (log)
1492	log->Printf("Process::SetPrivateState (%s)", StateAsCString(new_state));
1493
1494	Mutex::Locker thread_locker(m_thread_list.GetMutex());
1495	Mutex::Locker locker(m_private_state.GetMutex());
1496
1497	const StateType old_state = m_private_state.GetValueNoLock ();
1498	state_changed = old_state != new_state;
1499
1500	const bool old_state_is_stopped = StateIsStoppedState(old_state, false);
1501	const bool new_state_is_stopped = StateIsStoppedState(new_state, false);
1502	if (old_state_is_stopped != new_state_is_stopped)
1503	{
1504	if (new_state_is_stopped)
1505	m_private_run_lock.SetStopped();
1506	else
1507	m_private_run_lock.SetRunning();
1508	}
1509
1510	if (state_changed)
1511	{
1512	m_private_state.SetValueNoLock (new_state);
1513	if (StateIsStoppedState(new_state, false))
1514	{
1515	// Note, this currently assumes that all threads in the list
1516	// stop when the process stops. In the future we will want to
1517	// support a debugging model where some threads continue to run
1518	// while others are stopped. When that happens we will either need
1519	// a way for the thread list to identify which threads are stopping
1520	// or create a special thread list containing only threads which
1521	// actually stopped.
1522	//
1523	// The process plugin is responsible for managing the actual
1524	// behavior of the threads and should have stopped any threads
1525	// that are going to stop before we get here.
1526	m_thread_list.DidStop();
1527
1528	m_mod_id.BumpStopID();
1529	m_memory_cache.Clear();
1530	if (log)
1531	log->Printf("Process::SetPrivateState (%s) stop_id = %u", StateAsCString(new_state), m_mod_id.GetStopID());
1532	}
1533	// Use our target to get a shared pointer to ourselves...
1534	if (m_finalize_called && PrivateStateThreadIsValid() == false)
1535	BroadcastEvent (eBroadcastBitStateChanged, new ProcessEventData (shared_from_this(), new_state));
1536	else
1537	m_private_state_broadcaster.BroadcastEvent (eBroadcastBitStateChanged, new ProcessEventData (shared_from_this(), new_state));
1538	}
1539	else
1540	{
1541	if (log)
1542	log->Printf("Process::SetPrivateState (%s) state didn't change. Ignoring...", StateAsCString(new_state));
1543	}
1544	}
1545
1546	void
1547	Process::SetRunningUserExpression (bool on)
1548	{
1549	m_mod_id.SetRunningUserExpression (on);
1550	}
1551
1552	addr_t
1553	Process::GetImageInfoAddress()
1554	{
1555	return LLDB_INVALID_ADDRESS(18446744073709551615UL);
1556	}
1557
1558	//----------------------------------------------------------------------
1559	// LoadImage
1560	//
1561	// This function provides a default implementation that works for most
1562	// unix variants. Any Process subclasses that need to do shared library
1563	// loading differently should override LoadImage and UnloadImage and
1564	// do what is needed.
1565	//----------------------------------------------------------------------
1566	uint32_t
1567	Process::LoadImage (const FileSpec &image_spec, Error &error)
1568	{
1569	char path[PATH_MAX4096];
1570	image_spec.GetPath(path, sizeof(path));
1571
1572	DynamicLoader *loader = GetDynamicLoader();
1573	if (loader)
1574	{
1575	error = loader->CanLoadImage();
1576	if (error.Fail())
1577	return LLDB_INVALID_IMAGE_TOKEN(4294967295U);
1578	}
1579
1580	if (error.Success())
1581	{
1582	ThreadSP thread_sp(GetThreadList ().GetSelectedThread());
1583
1584	if (thread_sp)
1585	{
1586	StackFrameSP frame_sp (thread_sp->GetStackFrameAtIndex (0));
1587
1588	if (frame_sp)
1589	{
1590	ExecutionContext exe_ctx;
1591	frame_sp->CalculateExecutionContext (exe_ctx);
1592	EvaluateExpressionOptions expr_options;
1593	expr_options.SetUnwindOnError(true);
1594	expr_options.SetIgnoreBreakpoints(true);
1595	expr_options.SetExecutionPolicy(eExecutionPolicyAlways);
1596	expr_options.SetResultIsInternal(true);
1597
1598	StreamString expr;
1599	expr.Printf(R"(
1600	struct __lldb_dlopen_result { void image_ptr; const char error_str; } the_result;
1601	the_result.image_ptr = dlopen ("%s", 2);
1602	if (the_result.image_ptr == (void *) 0x0)
1603	{
1604	the_result.error_str = dlerror();
1605	}
1606	else
1607	{
1608	the_result.error_str = (const char *) 0x0;
1609	}
1610	the_result;
1611	)",
1612	path);
1613	const char *prefix = R"(
1614	extern "C" void* dlopen (const char *path, int mode);
1615	extern "C" const char *dlerror (void);
1616	)";
1617	lldb::ValueObjectSP result_valobj_sp;
1618	Error expr_error;
1619	ClangUserExpression::Evaluate (exe_ctx,
1620	expr_options,
1621	expr.GetData(),
1622	prefix,
1623	result_valobj_sp,
1624	expr_error);
1625	if (expr_error.Success())
1626	{
1627	error = result_valobj_sp->GetError();
1628	if (error.Success())
1629	{
1630	Scalar scalar;
1631	ValueObjectSP image_ptr_sp = result_valobj_sp->GetChildAtIndex(0, true);
1632	if (image_ptr_sp && image_ptr_sp->ResolveValue (scalar))
1633	{
1634	addr_t image_ptr = scalar.ULongLong(LLDB_INVALID_ADDRESS(18446744073709551615UL));
1635	if (image_ptr != 0 && image_ptr != LLDB_INVALID_ADDRESS(18446744073709551615UL))
1636	{
1637	uint32_t image_token = m_image_tokens.size();
1638	m_image_tokens.push_back (image_ptr);
1639	return image_token;
1640	}
1641	else if (image_ptr == 0)
1642	{
1643	ValueObjectSP error_str_sp = result_valobj_sp->GetChildAtIndex(1, true);
1644	if (error_str_sp)
1645	{
1646	if (error_str_sp->IsCStringContainer(true))
1647	{
1648	StreamString s;
1649	size_t num_chars = error_str_sp->ReadPointedString (s, error);
1650	if (error.Success() && num_chars > 0)
1651	{
1652	error.Clear();
1653	error.SetErrorStringWithFormat("dlopen error: %s", s.GetData());
1654	}
1655	}
1656	}
1657	}
1658	}
1659	}
1660	}
1661	else
1662	error = expr_error;
1663	}
1664	}
1665	}
1666	if (!error.AsCString())
1667	error.SetErrorStringWithFormat("unable to load '%s'", path);
1668	return LLDB_INVALID_IMAGE_TOKEN(4294967295U);
1669	}
1670
1671	//----------------------------------------------------------------------
1672	// UnloadImage
1673	//
1674	// This function provides a default implementation that works for most
1675	// unix variants. Any Process subclasses that need to do shared library
1676	// loading differently should override LoadImage and UnloadImage and
1677	// do what is needed.
1678	//----------------------------------------------------------------------
1679	Error
1680	Process::UnloadImage (uint32_t image_token)
1681	{
1682	Error error;
1683	if (image_token < m_image_tokens.size())
1684	{
1685	const addr_t image_addr = m_image_tokens[image_token];
1686	if (image_addr == LLDB_INVALID_ADDRESS(18446744073709551615UL))
1687	{
1688	error.SetErrorString("image already unloaded");
1689	}
1690	else
1691	{
1692	DynamicLoader *loader = GetDynamicLoader();
1693	if (loader)
1694	error = loader->CanLoadImage();
1695
1696	if (error.Success())
1697	{
1698	ThreadSP thread_sp(GetThreadList ().GetSelectedThread());
1699
1700	if (thread_sp)
1701	{
1702	StackFrameSP frame_sp (thread_sp->GetStackFrameAtIndex (0));
1703
1704	if (frame_sp)
1705	{
1706	ExecutionContext exe_ctx;
1707	frame_sp->CalculateExecutionContext (exe_ctx);
1708	EvaluateExpressionOptions expr_options;
1709	expr_options.SetUnwindOnError(true);
1710	expr_options.SetIgnoreBreakpoints(true);
1711	expr_options.SetExecutionPolicy(eExecutionPolicyAlways);
1712	StreamString expr;
1713	expr.Printf("dlclose ((void *)0x%" PRIx64"l" "x" ")", image_addr);
1714	const char prefix = "extern \"C\" int dlclose(void handle);\n";
1715	lldb::ValueObjectSP result_valobj_sp;
1716	Error expr_error;
1717	ClangUserExpression::Evaluate (exe_ctx,
1718	expr_options,
1719	expr.GetData(),
1720	prefix,
1721	result_valobj_sp,
1722	expr_error);
1723	if (result_valobj_sp->GetError().Success())
1724	{
1725	Scalar scalar;
1726	if (result_valobj_sp->ResolveValue (scalar))
1727	{
1728	if (scalar.UInt(1))
1729	{
1730	error.SetErrorStringWithFormat("expression failed: \"%s\"", expr.GetData());
1731	}
1732	else
1733	{
1734	m_image_tokens[image_token] = LLDB_INVALID_ADDRESS(18446744073709551615UL);
1735	}
1736	}
1737	}
1738	else
1739	{
1740	error = result_valobj_sp->GetError();
1741	}
1742	}
1743	}
1744	}
1745	}
1746	}
1747	else
1748	{
1749	error.SetErrorString("invalid image token");
1750	}
1751	return error;
1752	}
1753
1754	const lldb::ABISP &
1755	Process::GetABI()
1756	{
1757	if (!m_abi_sp)
1758	m_abi_sp = ABI::FindPlugin(m_target.GetArchitecture());
1759	return m_abi_sp;
1760	}
1761
1762	LanguageRuntime *
1763	Process::GetLanguageRuntime(lldb::LanguageType language, bool retry_if_null)
1764	{
1765	LanguageRuntimeCollection::iterator pos;
1766	pos = m_language_runtimes.find (language);
1767	if (pos == m_language_runtimes.end() \|\| (retry_if_null && !(*pos).second))
1768	{
1769	lldb::LanguageRuntimeSP runtime_sp(LanguageRuntime::FindPlugin(this, language));
1770
1771	m_language_runtimes[language] = runtime_sp;
1772	return runtime_sp.get();
1773	}
1774	else
1775	return (*pos).second.get();
1776	}
1777
1778	CPPLanguageRuntime *
1779	Process::GetCPPLanguageRuntime (bool retry_if_null)
1780	{
1781	LanguageRuntime *runtime = GetLanguageRuntime(eLanguageTypeC_plus_plus, retry_if_null);
1782	if (runtime != NULL__null && runtime->GetLanguageType() == eLanguageTypeC_plus_plus)
1783	return static_cast<CPPLanguageRuntime *> (runtime);
1784	return NULL__null;
1785	}
1786
1787	ObjCLanguageRuntime *
1788	Process::GetObjCLanguageRuntime (bool retry_if_null)
1789	{
1790	LanguageRuntime *runtime = GetLanguageRuntime(eLanguageTypeObjC, retry_if_null);
1791	if (runtime != NULL__null && runtime->GetLanguageType() == eLanguageTypeObjC)
1792	return static_cast<ObjCLanguageRuntime *> (runtime);
1793	return NULL__null;
1794	}
1795
1796	bool
1797	Process::IsPossibleDynamicValue (ValueObject& in_value)
1798	{
1799	if (in_value.IsDynamic())
1800	return false;
1801	LanguageType known_type = in_value.GetObjectRuntimeLanguage();
1802
1803	if (known_type != eLanguageTypeUnknown && known_type != eLanguageTypeC)
1804	{
1805	LanguageRuntime *runtime = GetLanguageRuntime (known_type);
1806	return runtime ? runtime->CouldHaveDynamicValue(in_value) : false;
1807	}
1808
1809	LanguageRuntime *cpp_runtime = GetLanguageRuntime (eLanguageTypeC_plus_plus);
1810	if (cpp_runtime && cpp_runtime->CouldHaveDynamicValue(in_value))
1811	return true;
1812
1813	LanguageRuntime *objc_runtime = GetLanguageRuntime (eLanguageTypeObjC);
1814	return objc_runtime ? objc_runtime->CouldHaveDynamicValue(in_value) : false;
1815	}
1816
1817	BreakpointSiteList &
1818	Process::GetBreakpointSiteList()
1819	{
1820	return m_breakpoint_site_list;
1821	}
1822
1823	const BreakpointSiteList &
1824	Process::GetBreakpointSiteList() const
1825	{
1826	return m_breakpoint_site_list;
1827	}
1828
1829
1830	void
1831	Process::DisableAllBreakpointSites ()
1832	{
1833	m_breakpoint_site_list.ForEach([this](BreakpointSite *bp_site) -> void {
1834	// bp_site->SetEnabled(true);
1835	DisableBreakpointSite(bp_site);
1836	});
1837	}
1838
1839	Error
1840	Process::ClearBreakpointSiteByID (lldb::user_id_t break_id)
1841	{
1842	Error error (DisableBreakpointSiteByID (break_id));
1843
1844	if (error.Success())
1845	m_breakpoint_site_list.Remove(break_id);
1846
1847	return error;
1848	}
1849
1850	Error
1851	Process::DisableBreakpointSiteByID (lldb::user_id_t break_id)
1852	{
1853	Error error;
1854	BreakpointSiteSP bp_site_sp = m_breakpoint_site_list.FindByID (break_id);
1855	if (bp_site_sp)
1856	{
1857	if (bp_site_sp->IsEnabled())
1858	error = DisableBreakpointSite (bp_site_sp.get());
1859	}
1860	else
1861	{
1862	error.SetErrorStringWithFormat("invalid breakpoint site ID: %" PRIu64"l" "u", break_id);
1863	}
1864
1865	return error;
1866	}
1867
1868	Error
1869	Process::EnableBreakpointSiteByID (lldb::user_id_t break_id)
1870	{
1871	Error error;
1872	BreakpointSiteSP bp_site_sp = m_breakpoint_site_list.FindByID (break_id);
1873	if (bp_site_sp)
1874	{
1875	if (!bp_site_sp->IsEnabled())
1876	error = EnableBreakpointSite (bp_site_sp.get());
1877	}
1878	else
1879	{
1880	error.SetErrorStringWithFormat("invalid breakpoint site ID: %" PRIu64"l" "u", break_id);
1881	}
1882	return error;
1883	}
1884
1885	lldb::break_id_t
1886	Process::CreateBreakpointSite (const BreakpointLocationSP &owner, bool use_hardware)
1887	{
1888	addr_t load_addr = LLDB_INVALID_ADDRESS(18446744073709551615UL);
1889
1890	bool show_error = true;
1891	switch (GetState())
1892	{
1893	case eStateInvalid:
1894	case eStateUnloaded:
1895	case eStateConnected:
1896	case eStateAttaching:
1897	case eStateLaunching:
1898	case eStateDetached:
1899	case eStateExited:
1900	show_error = false;
1901	break;
1902
1903	case eStateStopped:
1904	case eStateRunning:
1905	case eStateStepping:
1906	case eStateCrashed:
1907	case eStateSuspended:
1908	show_error = IsAlive();
1909	break;
1910	}
1911
1912	// Reset the IsIndirect flag here, in case the location changes from
1913	// pointing to a indirect symbol to a regular symbol.
1914	owner->SetIsIndirect (false);
1915
1916	if (owner->ShouldResolveIndirectFunctions())
1917	{
1918	Symbol *symbol = owner->GetAddress().CalculateSymbolContextSymbol();
1919	if (symbol && symbol->IsIndirect())
1920	{
1921	Error error;
1922	load_addr = ResolveIndirectFunction (&symbol->GetAddress(), error);
1923	if (!error.Success() && show_error)
1924	{
1925	m_target.GetDebugger().GetErrorFile()->Printf ("warning: failed to resolve indirect function at 0x%" PRIx64"l" "x" " for breakpoint %i.%i: %s\n",
1926	symbol->GetAddress().GetLoadAddress(&m_target),
1927	owner->GetBreakpoint().GetID(),
1928	owner->GetID(),
1929	error.AsCString() ? error.AsCString() : "unknown error");
1930	return LLDB_INVALID_BREAK_ID0;
1931	}
1932	Address resolved_address(load_addr);
1933	load_addr = resolved_address.GetOpcodeLoadAddress (&m_target);
1934	owner->SetIsIndirect(true);
1935	}
1936	else
1937	load_addr = owner->GetAddress().GetOpcodeLoadAddress (&m_target);
1938	}
1939	else
1940	load_addr = owner->GetAddress().GetOpcodeLoadAddress (&m_target);
1941
1942	if (load_addr != LLDB_INVALID_ADDRESS(18446744073709551615UL))
1943	{
1944	BreakpointSiteSP bp_site_sp;
1945
1946	// Look up this breakpoint site. If it exists, then add this new owner, otherwise
1947	// create a new breakpoint site and add it.
1948
1949	bp_site_sp = m_breakpoint_site_list.FindByAddress (load_addr);
1950
1951	if (bp_site_sp)
1952	{
1953	bp_site_sp->AddOwner (owner);
1954	owner->SetBreakpointSite (bp_site_sp);
1955	return bp_site_sp->GetID();
1956	}
1957	else
1958	{
1959	bp_site_sp.reset (new BreakpointSite (&m_breakpoint_site_list, owner, load_addr, use_hardware));
1960	if (bp_site_sp)
1961	{
1962	Error error = EnableBreakpointSite (bp_site_sp.get());
1963	if (error.Success())
1964	{
1965	owner->SetBreakpointSite (bp_site_sp);
1966	return m_breakpoint_site_list.Add (bp_site_sp);
1967	}
1968	else
1969	{
1970	if (show_error)
1971	{
1972	// Report error for setting breakpoint...
1973	m_target.GetDebugger().GetErrorFile()->Printf ("warning: failed to set breakpoint site at 0x%" PRIx64"l" "x" " for breakpoint %i.%i: %s\n",
1974	load_addr,
1975	owner->GetBreakpoint().GetID(),
1976	owner->GetID(),
1977	error.AsCString() ? error.AsCString() : "unknown error");
1978	}
1979	}
1980	}
1981	}
1982	}
1983	// We failed to enable the breakpoint
1984	return LLDB_INVALID_BREAK_ID0;
1985
1986	}
1987
1988	void
1989	Process::RemoveOwnerFromBreakpointSite (lldb::user_id_t owner_id, lldb::user_id_t owner_loc_id, BreakpointSiteSP &bp_site_sp)
1990	{
1991	uint32_t num_owners = bp_site_sp->RemoveOwner (owner_id, owner_loc_id);
1992	if (num_owners == 0)
1993	{
1994	// Don't try to disable the site if we don't have a live process anymore.
1995	if (IsAlive())
1996	DisableBreakpointSite (bp_site_sp.get());
1997	m_breakpoint_site_list.RemoveByAddress(bp_site_sp->GetLoadAddress());
1998	}
1999	}
2000
2001
2002	size_t
2003	Process::RemoveBreakpointOpcodesFromBuffer (addr_t bp_addr, size_t size, uint8_t *buf) const
2004	{
2005	size_t bytes_removed = 0;
2006	BreakpointSiteList bp_sites_in_range;
2007
2008	if (m_breakpoint_site_list.FindInRange (bp_addr, bp_addr + size, bp_sites_in_range))
2009	{
2010	bp_sites_in_range.ForEach([bp_addr, size, buf, &bytes_removed](BreakpointSite *bp_site) -> void {
2011	if (bp_site->GetType() == BreakpointSite::eSoftware)
2012	{
2013	addr_t intersect_addr;
2014	size_t intersect_size;
2015	size_t opcode_offset;
2016	if (bp_site->IntersectsRange(bp_addr, size, &intersect_addr, &intersect_size, &opcode_offset))
2017	{
2018	assert(bp_addr <= intersect_addr && intersect_addr < bp_addr + size)((bp_addr <= intersect_addr && intersect_addr < bp_addr + size) ? static_cast<void> (0) : __assert_fail ("bp_addr <= intersect_addr && intersect_addr < bp_addr + size" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2018, __PRETTY_FUNCTION__));
2019	assert(bp_addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= bp_addr + size)((bp_addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= bp_addr + size) ? static_cast<void > (0) : __assert_fail ("bp_addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= bp_addr + size" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2019, __PRETTY_FUNCTION__));
2020	assert(opcode_offset + intersect_size <= bp_site->GetByteSize())((opcode_offset + intersect_size <= bp_site->GetByteSize ()) ? static_cast<void> (0) : __assert_fail ("opcode_offset + intersect_size <= bp_site->GetByteSize()" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2020, __PRETTY_FUNCTION__));
2021	size_t buf_offset = intersect_addr - bp_addr;
2022	::memcpy(buf + buf_offset, bp_site->GetSavedOpcodeBytes() + opcode_offset, intersect_size);
2023	}
2024	}
2025	});
2026	}
2027	return bytes_removed;
2028	}
2029
2030
2031
2032	size_t
2033	Process::GetSoftwareBreakpointTrapOpcode (BreakpointSite* bp_site)
2034	{
2035	PlatformSP platform_sp (m_target.GetPlatform());
2036	if (platform_sp)
2037	return platform_sp->GetSoftwareBreakpointTrapOpcode (m_target, bp_site);
2038	return 0;
2039	}
2040
2041	Error
2042	Process::EnableSoftwareBreakpoint (BreakpointSite *bp_site)
2043	{
2044	Error error;
2045	assert (bp_site != NULL)((bp_site != __null) ? static_cast<void> (0) : __assert_fail ("bp_site != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2045, __PRETTY_FUNCTION__));
2046	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS(1u << 5)));
2047	const addr_t bp_addr = bp_site->GetLoadAddress();
2048	if (log)
2049	log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x", bp_site->GetID(), (uint64_t)bp_addr);
2050	if (bp_site->IsEnabled())
2051	{
2052	if (log)
2053	log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- already enabled", bp_site->GetID(), (uint64_t)bp_addr);
2054	return error;
2055	}
2056
2057	if (bp_addr == LLDB_INVALID_ADDRESS(18446744073709551615UL))
2058	{
2059	error.SetErrorString("BreakpointSite contains an invalid load address.");
2060	return error;
2061	}
2062	// Ask the lldb::Process subclass to fill in the correct software breakpoint
2063	// trap for the breakpoint site
2064	const size_t bp_opcode_size = GetSoftwareBreakpointTrapOpcode(bp_site);
2065
2066	if (bp_opcode_size == 0)
2067	{
2068	error.SetErrorStringWithFormat ("Process::GetSoftwareBreakpointTrapOpcode() returned zero, unable to get breakpoint trap for address 0x%" PRIx64"l" "x", bp_addr);
2069	}
2070	else
2071	{
2072	const uint8_t * const bp_opcode_bytes = bp_site->GetTrapOpcodeBytes();
2073
2074	if (bp_opcode_bytes == NULL__null)
2075	{
2076	error.SetErrorString ("BreakpointSite doesn't contain a valid breakpoint trap opcode.");
2077	return error;
2078	}
2079
2080	// Save the original opcode by reading it
2081	if (DoReadMemory(bp_addr, bp_site->GetSavedOpcodeBytes(), bp_opcode_size, error) == bp_opcode_size)
2082	{
2083	// Write a software breakpoint in place of the original opcode
2084	if (DoWriteMemory(bp_addr, bp_opcode_bytes, bp_opcode_size, error) == bp_opcode_size)
2085	{
2086	uint8_t verify_bp_opcode_bytes[64];
2087	if (DoReadMemory(bp_addr, verify_bp_opcode_bytes, bp_opcode_size, error) == bp_opcode_size)
2088	{
2089	if (::memcmp(bp_opcode_bytes, verify_bp_opcode_bytes, bp_opcode_size) == 0)
2090	{
2091	bp_site->SetEnabled(true);
2092	bp_site->SetType (BreakpointSite::eSoftware);
2093	if (log)
2094	log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- SUCCESS",
2095	bp_site->GetID(),
2096	(uint64_t)bp_addr);
2097	}
2098	else
2099	error.SetErrorString("failed to verify the breakpoint trap in memory.");
2100	}
2101	else
2102	error.SetErrorString("Unable to read memory to verify breakpoint trap.");
2103	}
2104	else
2105	error.SetErrorString("Unable to write breakpoint trap to memory.");
2106	}
2107	else
2108	error.SetErrorString("Unable to read memory at breakpoint address.");
2109	}
2110	if (log && error.Fail())
2111	log->Printf ("Process::EnableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- FAILED: %s",
2112	bp_site->GetID(),
2113	(uint64_t)bp_addr,
2114	error.AsCString());
2115	return error;
2116	}
2117
2118	Error
2119	Process::DisableSoftwareBreakpoint (BreakpointSite *bp_site)
2120	{
2121	Error error;
2122	assert (bp_site != NULL)((bp_site != __null) ? static_cast<void> (0) : __assert_fail ("bp_site != __null", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2122, __PRETTY_FUNCTION__));
2123	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_BREAKPOINTS(1u << 5)));
2124	addr_t bp_addr = bp_site->GetLoadAddress();
2125	lldb::user_id_t breakID = bp_site->GetID();
2126	if (log)
2127	log->Printf ("Process::DisableSoftwareBreakpoint (breakID = %" PRIu64"l" "u" ") addr = 0x%" PRIx64"l" "x", breakID, (uint64_t)bp_addr);
2128
2129	if (bp_site->IsHardware())
2130	{
2131	error.SetErrorString("Breakpoint site is a hardware breakpoint.");
2132	}
2133	else if (bp_site->IsEnabled())
2134	{
2135	const size_t break_op_size = bp_site->GetByteSize();
2136	const uint8_t * const break_op = bp_site->GetTrapOpcodeBytes();
2137	if (break_op_size > 0)
2138	{
2139	// Clear a software breakpoint instruction
2140	uint8_t curr_break_op[8];
2141	assert (break_op_size <= sizeof(curr_break_op))((break_op_size <= sizeof(curr_break_op)) ? static_cast< void> (0) : __assert_fail ("break_op_size <= sizeof(curr_break_op)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2141, __PRETTY_FUNCTION__));
2142	bool break_op_found = false;
2143
2144	// Read the breakpoint opcode
2145	if (DoReadMemory (bp_addr, curr_break_op, break_op_size, error) == break_op_size)
2146	{
2147	bool verify = false;
2148	// Make sure we have the a breakpoint opcode exists at this address
2149	if (::memcmp (curr_break_op, break_op, break_op_size) == 0)
2150	{
2151	break_op_found = true;
2152	// We found a valid breakpoint opcode at this address, now restore
2153	// the saved opcode.
2154	if (DoWriteMemory (bp_addr, bp_site->GetSavedOpcodeBytes(), break_op_size, error) == break_op_size)
2155	{
2156	verify = true;
2157	}
2158	else
2159	error.SetErrorString("Memory write failed when restoring original opcode.");
2160	}
2161	else
2162	{
2163	error.SetErrorString("Original breakpoint trap is no longer in memory.");
2164	// Set verify to true and so we can check if the original opcode has already been restored
2165	verify = true;
2166	}
2167
2168	if (verify)
2169	{
2170	uint8_t verify_opcode[8];
2171	assert (break_op_size < sizeof(verify_opcode))((break_op_size < sizeof(verify_opcode)) ? static_cast< void> (0) : __assert_fail ("break_op_size < sizeof(verify_opcode)" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2171, __PRETTY_FUNCTION__));
2172	// Verify that our original opcode made it back to the inferior
2173	if (DoReadMemory (bp_addr, verify_opcode, break_op_size, error) == break_op_size)
2174	{
2175	// compare the memory we just read with the original opcode
2176	if (::memcmp (bp_site->GetSavedOpcodeBytes(), verify_opcode, break_op_size) == 0)
2177	{
2178	// SUCCESS
2179	bp_site->SetEnabled(false);
2180	if (log)
2181	log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- SUCCESS", bp_site->GetID(), (uint64_t)bp_addr);
2182	return error;
2183	}
2184	else
2185	{
2186	if (break_op_found)
2187	error.SetErrorString("Failed to restore original opcode.");
2188	}
2189	}
2190	else
2191	error.SetErrorString("Failed to read memory to verify that breakpoint trap was restored.");
2192	}
2193	}
2194	else
2195	error.SetErrorString("Unable to read memory that should contain the breakpoint trap.");
2196	}
2197	}
2198	else
2199	{
2200	if (log)
2201	log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- already disabled", bp_site->GetID(), (uint64_t)bp_addr);
2202	return error;
2203	}
2204
2205	if (log)
2206	log->Printf ("Process::DisableSoftwareBreakpoint (site_id = %d) addr = 0x%" PRIx64"l" "x" " -- FAILED: %s",
2207	bp_site->GetID(),
2208	(uint64_t)bp_addr,
2209	error.AsCString());
2210	return error;
2211
2212	}
2213
2214	// Uncomment to verify memory caching works after making changes to caching code
2215	//#define VERIFY_MEMORY_READS
2216
2217	size_t
2218	Process::ReadMemory (addr_t addr, void *buf, size_t size, Error &error)
2219	{
2220	error.Clear();
2221	if (!GetDisableMemoryCache())
2222	{
2223	#if defined (VERIFY_MEMORY_READS)
2224	// Memory caching is enabled, with debug verification
2225
2226	if (buf && size)
2227	{
2228	// Uncomment the line below to make sure memory caching is working.
2229	// I ran this through the test suite and got no assertions, so I am
2230	// pretty confident this is working well. If any changes are made to
2231	// memory caching, uncomment the line below and test your changes!
2232
2233	// Verify all memory reads by using the cache first, then redundantly
2234	// reading the same memory from the inferior and comparing to make sure
2235	// everything is exactly the same.
2236	std::string verify_buf (size, '\0');
2237	assert (verify_buf.size() == size)((verify_buf.size() == size) ? static_cast<void> (0) : __assert_fail ("verify_buf.size() == size", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2237, __PRETTY_FUNCTION__));
2238	const size_t cache_bytes_read = m_memory_cache.Read (this, addr, buf, size, error);
2239	Error verify_error;
2240	const size_t verify_bytes_read = ReadMemoryFromInferior (addr, const_cast<char *>(verify_buf.data()), verify_buf.size(), verify_error);
2241	assert (cache_bytes_read == verify_bytes_read)((cache_bytes_read == verify_bytes_read) ? static_cast<void > (0) : __assert_fail ("cache_bytes_read == verify_bytes_read" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2241, __PRETTY_FUNCTION__));
2242	assert (memcmp(buf, verify_buf.data(), verify_buf.size()) == 0)((memcmp(buf, verify_buf.data(), verify_buf.size()) == 0) ? static_cast <void> (0) : __assert_fail ("memcmp(buf, verify_buf.data(), verify_buf.size()) == 0" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2242, __PRETTY_FUNCTION__));
2243	assert (verify_error.Success() == error.Success())((verify_error.Success() == error.Success()) ? static_cast< void> (0) : __assert_fail ("verify_error.Success() == error.Success()" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2243, __PRETTY_FUNCTION__));
2244	return cache_bytes_read;
2245	}
2246	return 0;
2247	#else // !defined(VERIFY_MEMORY_READS)
2248	// Memory caching is enabled, without debug verification
2249
2250	return m_memory_cache.Read (addr, buf, size, error);
2251	#endif // defined (VERIFY_MEMORY_READS)
2252	}
2253	else
2254	{
2255	// Memory caching is disabled
2256
2257	return ReadMemoryFromInferior (addr, buf, size, error);
2258	}
2259	}
2260
2261	size_t
2262	Process::ReadCStringFromMemory (addr_t addr, std::string &out_str, Error &error)
2263	{
2264	char buf[256];
2265	out_str.clear();
2266	addr_t curr_addr = addr;
2267	while (1)
2268	{
2269	size_t length = ReadCStringFromMemory (curr_addr, buf, sizeof(buf), error);
2270	if (length == 0)
2271	break;
2272	out_str.append(buf, length);
2273	// If we got "length - 1" bytes, we didn't get the whole C string, we
2274	// need to read some more characters
2275	if (length == sizeof(buf) - 1)
2276	curr_addr += length;
2277	else
2278	break;
2279	}
2280	return out_str.size();
2281	}
2282
2283
2284	size_t
2285	Process::ReadStringFromMemory (addr_t addr, char *dst, size_t max_bytes, Error &error,
2286	size_t type_width)
2287	{
2288	size_t total_bytes_read = 0;
2289	if (dst && max_bytes && type_width && max_bytes >= type_width)
2290	{
2291	// Ensure a null terminator independent of the number of bytes that is read.
2292	memset (dst, 0, max_bytes);
2293	size_t bytes_left = max_bytes - type_width;
2294
2295	const char terminator[4] = {'\0', '\0', '\0', '\0'};
2296	assert(sizeof(terminator) >= type_width &&((sizeof(terminator) >= type_width && "Attempting to validate a string with more than 4 bytes per character!" ) ? static_cast<void> (0) : __assert_fail ("sizeof(terminator) >= type_width && \"Attempting to validate a string with more than 4 bytes per character!\"" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2297, __PRETTY_FUNCTION__))
2297	"Attempting to validate a string with more than 4 bytes per character!")((sizeof(terminator) >= type_width && "Attempting to validate a string with more than 4 bytes per character!" ) ? static_cast<void> (0) : __assert_fail ("sizeof(terminator) >= type_width && \"Attempting to validate a string with more than 4 bytes per character!\"" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2297, __PRETTY_FUNCTION__));
2298
2299	addr_t curr_addr = addr;
2300	const size_t cache_line_size = m_memory_cache.GetMemoryCacheLineSize();
2301	char *curr_dst = dst;
2302
2303	error.Clear();
2304	while (bytes_left > 0 && error.Success())
2305	{
2306	addr_t cache_line_bytes_left = cache_line_size - (curr_addr % cache_line_size);
2307	addr_t bytes_to_read = std::min<addr_t>(bytes_left, cache_line_bytes_left);
2308	size_t bytes_read = ReadMemory (curr_addr, curr_dst, bytes_to_read, error);
2309
2310	if (bytes_read == 0)
2311	break;
2312
2313	// Search for a null terminator of correct size and alignment in bytes_read
2314	size_t aligned_start = total_bytes_read - total_bytes_read % type_width;
2315	for (size_t i = aligned_start; i + type_width <= total_bytes_read + bytes_read; i += type_width)
2316	if (::strncmp(&dst[i], terminator, type_width) == 0)
2317	{
2318	error.Clear();
2319	return i;
2320	}
2321
2322	total_bytes_read += bytes_read;
2323	curr_dst += bytes_read;
2324	curr_addr += bytes_read;
2325	bytes_left -= bytes_read;
2326	}
2327	}
2328	else
2329	{
2330	if (max_bytes)
2331	error.SetErrorString("invalid arguments");
2332	}
2333	return total_bytes_read;
2334	}
2335
2336	// Deprecated in favor of ReadStringFromMemory which has wchar support and correct code to find
2337	// null terminators.
2338	size_t
2339	Process::ReadCStringFromMemory (addr_t addr, char *dst, size_t dst_max_len, Error &result_error)
2340	{
2341	size_t total_cstr_len = 0;
2342	if (dst && dst_max_len)
2343	{
2344	result_error.Clear();
2345	// NULL out everything just to be safe
2346	memset (dst, 0, dst_max_len);
2347	Error error;
2348	addr_t curr_addr = addr;
2349	const size_t cache_line_size = m_memory_cache.GetMemoryCacheLineSize();
2350	size_t bytes_left = dst_max_len - 1;
2351	char *curr_dst = dst;
2352
2353	while (bytes_left > 0)
2354	{
2355	addr_t cache_line_bytes_left = cache_line_size - (curr_addr % cache_line_size);
2356	addr_t bytes_to_read = std::min<addr_t>(bytes_left, cache_line_bytes_left);
2357	size_t bytes_read = ReadMemory (curr_addr, curr_dst, bytes_to_read, error);
2358
2359	if (bytes_read == 0)
2360	{
2361	result_error = error;
2362	dst[total_cstr_len] = '\0';
2363	break;
2364	}
2365	const size_t len = strlen(curr_dst);
2366
2367	total_cstr_len += len;
2368
2369	if (len < bytes_to_read)
2370	break;
2371
2372	curr_dst += bytes_read;
2373	curr_addr += bytes_read;
2374	bytes_left -= bytes_read;
2375	}
2376	}
2377	else
2378	{
2379	if (dst == NULL__null)
2380	result_error.SetErrorString("invalid arguments");
2381	else
2382	result_error.Clear();
2383	}
2384	return total_cstr_len;
2385	}
2386
2387	size_t
2388	Process::ReadMemoryFromInferior (addr_t addr, void *buf, size_t size, Error &error)
2389	{
2390	if (buf == NULL__null \|\| size == 0)
2391	return 0;
2392
2393	size_t bytes_read = 0;
2394	uint8_t bytes = (uint8_t )buf;
2395
2396	while (bytes_read < size)
2397	{
2398	const size_t curr_size = size - bytes_read;
2399	const size_t curr_bytes_read = DoReadMemory (addr + bytes_read,
2400	bytes + bytes_read,
2401	curr_size,
2402	error);
2403	bytes_read += curr_bytes_read;
2404	if (curr_bytes_read == curr_size \|\| curr_bytes_read == 0)
2405	break;
2406	}
2407
2408	// Replace any software breakpoint opcodes that fall into this range back
2409	// into "buf" before we return
2410	if (bytes_read > 0)
2411	RemoveBreakpointOpcodesFromBuffer (addr, bytes_read, (uint8_t *)buf);
2412	return bytes_read;
2413	}
2414
2415	uint64_t
2416	Process::ReadUnsignedIntegerFromMemory (lldb::addr_t vm_addr, size_t integer_byte_size, uint64_t fail_value, Error &error)
2417	{
2418	Scalar scalar;
2419	if (ReadScalarIntegerFromMemory(vm_addr, integer_byte_size, false, scalar, error))
2420	return scalar.ULongLong(fail_value);
2421	return fail_value;
2422	}
2423
2424	addr_t
2425	Process::ReadPointerFromMemory (lldb::addr_t vm_addr, Error &error)
2426	{
2427	Scalar scalar;
2428	if (ReadScalarIntegerFromMemory(vm_addr, GetAddressByteSize(), false, scalar, error))
2429	return scalar.ULongLong(LLDB_INVALID_ADDRESS(18446744073709551615UL));
2430	return LLDB_INVALID_ADDRESS(18446744073709551615UL);
2431	}
2432
2433
2434	bool
2435	Process::WritePointerToMemory (lldb::addr_t vm_addr,
2436	lldb::addr_t ptr_value,
2437	Error &error)
2438	{
2439	Scalar scalar;
2440	const uint32_t addr_byte_size = GetAddressByteSize();
2441	if (addr_byte_size <= 4)
2442	scalar = (uint32_t)ptr_value;
2443	else
2444	scalar = ptr_value;
2445	return WriteScalarToMemory(vm_addr, scalar, addr_byte_size, error) == addr_byte_size;
2446	}
2447
2448	size_t
2449	Process::WriteMemoryPrivate (addr_t addr, const void *buf, size_t size, Error &error)
2450	{
2451	size_t bytes_written = 0;
2452	const uint8_t bytes = (const uint8_t )buf;
2453
2454	while (bytes_written < size)
2455	{
2456	const size_t curr_size = size - bytes_written;
2457	const size_t curr_bytes_written = DoWriteMemory (addr + bytes_written,
2458	bytes + bytes_written,
2459	curr_size,
2460	error);
2461	bytes_written += curr_bytes_written;
2462	if (curr_bytes_written == curr_size \|\| curr_bytes_written == 0)
2463	break;
2464	}
2465	return bytes_written;
2466	}
2467
2468	size_t
2469	Process::WriteMemory (addr_t addr, const void *buf, size_t size, Error &error)
2470	{
2471	#if defined (ENABLE_MEMORY_CACHING)
2472	m_memory_cache.Flush (addr, size);
2473	#endif
2474
2475	if (buf == NULL__null \|\| size == 0)
2476	return 0;
2477
2478	m_mod_id.BumpMemoryID();
2479
2480	// We need to write any data that would go where any current software traps
2481	// (enabled software breakpoints) any software traps (breakpoints) that we
2482	// may have placed in our tasks memory.
2483
2484	BreakpointSiteList bp_sites_in_range;
2485
2486	if (m_breakpoint_site_list.FindInRange (addr, addr + size, bp_sites_in_range))
2487	{
2488	// No breakpoint sites overlap
2489	if (bp_sites_in_range.IsEmpty())
2490	return WriteMemoryPrivate (addr, buf, size, error);
2491	else
2492	{
2493	const uint8_t ubuf = (const uint8_t )buf;
2494	uint64_t bytes_written = 0;
2495
2496	bp_sites_in_range.ForEach([this, addr, size, &bytes_written, &ubuf, &error](BreakpointSite *bp) -> void {
2497
2498	if (error.Success())
2499	{
2500	addr_t intersect_addr;
2501	size_t intersect_size;
2502	size_t opcode_offset;
2503	const bool intersects = bp->IntersectsRange(addr, size, &intersect_addr, &intersect_size, &opcode_offset);
2504	assert(intersects)((intersects) ? static_cast<void> (0) : __assert_fail ( "intersects", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2504, __PRETTY_FUNCTION__));
2505	assert(addr <= intersect_addr && intersect_addr < addr + size)((addr <= intersect_addr && intersect_addr < addr + size) ? static_cast<void> (0) : __assert_fail ("addr <= intersect_addr && intersect_addr < addr + size" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2505, __PRETTY_FUNCTION__));
2506	assert(addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= addr + size)((addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= addr + size) ? static_cast<void> (0) : __assert_fail ("addr < intersect_addr + intersect_size && intersect_addr + intersect_size <= addr + size" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2506, __PRETTY_FUNCTION__));
2507	assert(opcode_offset + intersect_size <= bp->GetByteSize())((opcode_offset + intersect_size <= bp->GetByteSize()) ? static_cast<void> (0) : __assert_fail ("opcode_offset + intersect_size <= bp->GetByteSize()" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2507, __PRETTY_FUNCTION__));
2508
2509	// Check for bytes before this breakpoint
2510	const addr_t curr_addr = addr + bytes_written;
2511	if (intersect_addr > curr_addr)
2512	{
2513	// There are some bytes before this breakpoint that we need to
2514	// just write to memory
2515	size_t curr_size = intersect_addr - curr_addr;
2516	size_t curr_bytes_written = WriteMemoryPrivate (curr_addr,
2517	ubuf + bytes_written,
2518	curr_size,
2519	error);
2520	bytes_written += curr_bytes_written;
2521	if (curr_bytes_written != curr_size)
2522	{
2523	// We weren't able to write all of the requested bytes, we
2524	// are done looping and will return the number of bytes that
2525	// we have written so far.
2526	if (error.Success())
2527	error.SetErrorToGenericError();
2528	}
2529	}
2530	// Now write any bytes that would cover up any software breakpoints
2531	// directly into the breakpoint opcode buffer
2532	::memcpy(bp->GetSavedOpcodeBytes() + opcode_offset, ubuf + bytes_written, intersect_size);
2533	bytes_written += intersect_size;
2534	}
2535	});
2536
2537	if (bytes_written < size)
2538	bytes_written += WriteMemoryPrivate (addr + bytes_written,
	Value stored to 'bytes_written' is never read
2539	ubuf + bytes_written,
2540	size - bytes_written,
2541	error);
2542	}
2543	}
2544	else
2545	{
2546	return WriteMemoryPrivate (addr, buf, size, error);
2547	}
2548
2549	// Write any remaining bytes after the last breakpoint if we have any left
2550	return 0; //bytes_written;
2551	}
2552
2553	size_t
2554	Process::WriteScalarToMemory (addr_t addr, const Scalar &scalar, size_t byte_size, Error &error)
2555	{
2556	if (byte_size == UINT32_MAX(4294967295U))
2557	byte_size = scalar.GetByteSize();
2558	if (byte_size > 0)
2559	{
2560	uint8_t buf[32];
2561	const size_t mem_size = scalar.GetAsMemoryData (buf, byte_size, GetByteOrder(), error);
2562	if (mem_size > 0)
2563	return WriteMemory(addr, buf, mem_size, error);
2564	else
2565	error.SetErrorString ("failed to get scalar as memory data");
2566	}
2567	else
2568	{
2569	error.SetErrorString ("invalid scalar value");
2570	}
2571	return 0;
2572	}
2573
2574	size_t
2575	Process::ReadScalarIntegerFromMemory (addr_t addr,
2576	uint32_t byte_size,
2577	bool is_signed,
2578	Scalar &scalar,
2579	Error &error)
2580	{
2581	uint64_t uval = 0;
2582	if (byte_size == 0)
2583	{
2584	error.SetErrorString ("byte size is zero");
2585	}
2586	else if (byte_size & (byte_size - 1))
2587	{
2588	error.SetErrorStringWithFormat ("byte size %u is not a power of 2", byte_size);
2589	}
2590	else if (byte_size <= sizeof(uval))
2591	{
2592	const size_t bytes_read = ReadMemory (addr, &uval, byte_size, error);
2593	if (bytes_read == byte_size)
2594	{
2595	DataExtractor data (&uval, sizeof(uval), GetByteOrder(), GetAddressByteSize());
2596	lldb::offset_t offset = 0;
2597	if (byte_size <= 4)
2598	scalar = data.GetMaxU32 (&offset, byte_size);
2599	else
2600	scalar = data.GetMaxU64 (&offset, byte_size);
2601	if (is_signed)
2602	scalar.SignExtend(byte_size * 8);
2603	return bytes_read;
2604	}
2605	}
2606	else
2607	{
2608	error.SetErrorStringWithFormat ("byte size of %u is too large for integer scalar type", byte_size);
2609	}
2610	return 0;
2611	}
2612
2613	#define USE_ALLOCATE_MEMORY_CACHE1 1
2614	addr_t
2615	Process::AllocateMemory(size_t size, uint32_t permissions, Error &error)
2616	{
2617	if (GetPrivateState() != eStateStopped)
2618	return LLDB_INVALID_ADDRESS(18446744073709551615UL);
2619
2620	#if defined (USE_ALLOCATE_MEMORY_CACHE1)
2621	return m_allocated_memory_cache.AllocateMemory(size, permissions, error);
2622	#else
2623	addr_t allocated_addr = DoAllocateMemory (size, permissions, error);
2624	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
2625	if (log)
2626	log->Printf("Process::AllocateMemory(size=%" PRIu64"l" "u" ", permissions=%s) => 0x%16.16" PRIx64"l" "x" " (m_stop_id = %u m_memory_id = %u)",
2627	(uint64_t)size,
2628	GetPermissionsAsCString (permissions),
2629	(uint64_t)allocated_addr,
2630	m_mod_id.GetStopID(),
2631	m_mod_id.GetMemoryID());
2632	return allocated_addr;
2633	#endif
2634	}
2635
2636	bool
2637	Process::CanJIT ()
2638	{
2639	if (m_can_jit == eCanJITDontKnow)
2640	{
2641	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
2642	Error err;
2643
2644	uint64_t allocated_memory = AllocateMemory(8,
2645	ePermissionsReadable \| ePermissionsWritable \| ePermissionsExecutable,
2646	err);
2647
2648	if (err.Success())
2649	{
2650	m_can_jit = eCanJITYes;
2651	if (log)
2652	log->Printf ("Process::%s pid %" PRIu64"l" "u" " allocation test passed, CanJIT () is true", __FUNCTION__, GetID ());
2653	}
2654	else
2655	{
2656	m_can_jit = eCanJITNo;
2657	if (log)
2658	log->Printf ("Process::%s pid %" PRIu64"l" "u" " allocation test failed, CanJIT () is false: %s", __FUNCTION__, GetID (), err.AsCString ());
2659	}
2660
2661	DeallocateMemory (allocated_memory);
2662	}
2663
2664	return m_can_jit == eCanJITYes;
2665	}
2666
2667	void
2668	Process::SetCanJIT (bool can_jit)
2669	{
2670	m_can_jit = (can_jit ? eCanJITYes : eCanJITNo);
2671	}
2672
2673	Error
2674	Process::DeallocateMemory (addr_t ptr)
2675	{
2676	Error error;
2677	#if defined (USE_ALLOCATE_MEMORY_CACHE1)
2678	if (!m_allocated_memory_cache.DeallocateMemory(ptr))
2679	{
2680	error.SetErrorStringWithFormat ("deallocation of memory at 0x%" PRIx64"l" "x" " failed.", (uint64_t)ptr);
2681	}
2682	#else
2683	error = DoDeallocateMemory (ptr);
2684
2685	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
2686	if (log)
2687	log->Printf("Process::DeallocateMemory(addr=0x%16.16" PRIx64"l" "x" ") => err = %s (m_stop_id = %u, m_memory_id = %u)",
2688	ptr,
2689	error.AsCString("SUCCESS"),
2690	m_mod_id.GetStopID(),
2691	m_mod_id.GetMemoryID());
2692	#endif
2693	return error;
2694	}
2695
2696
2697	ModuleSP
2698	Process::ReadModuleFromMemory (const FileSpec& file_spec,
2699	lldb::addr_t header_addr,
2700	size_t size_to_read)
2701	{
2702	ModuleSP module_sp (new Module (file_spec, ArchSpec()));
2703	if (module_sp)
2704	{
2705	Error error;
2706	ObjectFile *objfile = module_sp->GetMemoryObjectFile (shared_from_this(), header_addr, error, size_to_read);
2707	if (objfile)
2708	return module_sp;
2709	}
2710	return ModuleSP();
2711	}
2712
2713	Error
2714	Process::EnableWatchpoint (Watchpoint *watchpoint, bool notify)
2715	{
2716	Error error;
2717	error.SetErrorString("watchpoints are not supported");
2718	return error;
2719	}
2720
2721	Error
2722	Process::DisableWatchpoint (Watchpoint *watchpoint, bool notify)
2723	{
2724	Error error;
2725	error.SetErrorString("watchpoints are not supported");
2726	return error;
2727	}
2728
2729	StateType
2730	Process::WaitForProcessStopPrivate (const TimeValue *timeout, EventSP &event_sp)
2731	{
2732	StateType state;
2733	// Now wait for the process to launch and return control to us, and then
2734	// call DidLaunch:
2735	while (1)
2736	{
2737	event_sp.reset();
2738	state = WaitForStateChangedEventsPrivate (timeout, event_sp);
2739
2740	if (StateIsStoppedState(state, false))
2741	break;
2742
2743	// If state is invalid, then we timed out
2744	if (state == eStateInvalid)
2745	break;
2746
2747	if (event_sp)
2748	HandlePrivateEvent (event_sp);
2749	}
2750	return state;
2751	}
2752
2753	Error
2754	Process::Launch (ProcessLaunchInfo &launch_info)
2755	{
2756	Error error;
2757	m_abi_sp.reset();
2758	m_dyld_ap.reset();
2759	m_jit_loaders_ap.reset();
2760	m_system_runtime_ap.reset();
2761	m_os_ap.reset();
2762	m_process_input_reader.reset();
2763
2764	Module *exe_module = m_target.GetExecutableModulePointer();
2765	if (exe_module)
2766	{
2767	char local_exec_file_path[PATH_MAX4096];
2768	char platform_exec_file_path[PATH_MAX4096];
2769	exe_module->GetFileSpec().GetPath(local_exec_file_path, sizeof(local_exec_file_path));
2770	exe_module->GetPlatformFileSpec().GetPath(platform_exec_file_path, sizeof(platform_exec_file_path));
2771	if (exe_module->GetFileSpec().Exists())
2772	{
2773	// Install anything that might need to be installed prior to launching.
2774	// For host systems, this will do nothing, but if we are connected to a
2775	// remote platform it will install any needed binaries
2776	error = GetTarget().Install(&launch_info);
2777	if (error.Fail())
2778	return error;
2779
2780	if (PrivateStateThreadIsValid ())
2781	PausePrivateStateThread ();
2782
2783	error = WillLaunch (exe_module);
2784	if (error.Success())
2785	{
2786	const bool restarted = false;
2787	SetPublicState (eStateLaunching, restarted);
2788	m_should_detach = false;
2789
2790	if (m_public_run_lock.TrySetRunning())
2791	{
2792	// Now launch using these arguments.
2793	error = DoLaunch (exe_module, launch_info);
2794	}
2795	else
2796	{
2797	// This shouldn't happen
2798	error.SetErrorString("failed to acquire process run lock");
2799	}
2800
2801	if (error.Fail())
2802	{
2803	if (GetID() != LLDB_INVALID_PROCESS_ID0)
2804	{
2805	SetID (LLDB_INVALID_PROCESS_ID0);
2806	const char *error_string = error.AsCString();
2807	if (error_string == NULL__null)
2808	error_string = "launch failed";
2809	SetExitStatus (-1, error_string);
2810	}
2811	}
2812	else
2813	{
2814	EventSP event_sp;
2815	TimeValue timeout_time;
2816	timeout_time = TimeValue::Now();
2817	timeout_time.OffsetWithSeconds(10);
2818	StateType state = WaitForProcessStopPrivate(&timeout_time, event_sp);
2819
2820	if (state == eStateInvalid \|\| event_sp.get() == NULL__null)
2821	{
2822	// We were able to launch the process, but we failed to
2823	// catch the initial stop.
2824	SetExitStatus (0, "failed to catch stop after launch");
2825	Destroy();
2826	}
2827	else if (state == eStateStopped \|\| state == eStateCrashed)
2828	{
2829
2830	DidLaunch ();
2831
2832	DynamicLoader *dyld = GetDynamicLoader ();
2833	if (dyld)
2834	dyld->DidLaunch();
2835
2836	GetJITLoaders().DidLaunch();
2837
2838	SystemRuntime *system_runtime = GetSystemRuntime ();
2839	if (system_runtime)
2840	system_runtime->DidLaunch();
2841
2842	m_os_ap.reset (OperatingSystem::FindPlugin (this, NULL__null));
2843
2844	// Note, the stop event was consumed above, but not handled. This was done
2845	// to give DidLaunch a chance to run. The target is either stopped or crashed.
2846	// Directly set the state. This is done to prevent a stop message with a bunch
2847	// of spurious output on thread status, as well as not pop a ProcessIOHandler.
2848	SetPublicState(state, false);
2849
2850	if (PrivateStateThreadIsValid ())
2851	ResumePrivateStateThread ();
2852	else
2853	StartPrivateStateThread ();
2854	}
2855	else if (state == eStateExited)
2856	{
2857	// We exited while trying to launch somehow. Don't call DidLaunch as that's
2858	// not likely to work, and return an invalid pid.
2859	HandlePrivateEvent (event_sp);
2860	}
2861	}
2862	}
2863	}
2864	else
2865	{
2866	error.SetErrorStringWithFormat("file doesn't exist: '%s'", local_exec_file_path);
2867	}
2868	}
2869	return error;
2870	}
2871
2872
2873	Error
2874	Process::LoadCore ()
2875	{
2876	Error error = DoLoadCore();
2877	if (error.Success())
2878	{
2879	if (PrivateStateThreadIsValid ())
2880	ResumePrivateStateThread ();
2881	else
2882	StartPrivateStateThread ();
2883
2884	DynamicLoader *dyld = GetDynamicLoader ();
2885	if (dyld)
2886	dyld->DidAttach();
2887
2888	GetJITLoaders().DidAttach();
2889
2890	SystemRuntime *system_runtime = GetSystemRuntime ();
2891	if (system_runtime)
2892	system_runtime->DidAttach();
2893
2894	m_os_ap.reset (OperatingSystem::FindPlugin (this, NULL__null));
2895	// We successfully loaded a core file, now pretend we stopped so we can
2896	// show all of the threads in the core file and explore the crashed
2897	// state.
2898	SetPrivateState (eStateStopped);
2899
2900	}
2901	return error;
2902	}
2903
2904	DynamicLoader *
2905	Process::GetDynamicLoader ()
2906	{
2907	if (m_dyld_ap.get() == NULL__null)
2908	m_dyld_ap.reset (DynamicLoader::FindPlugin(this, NULL__null));
2909	return m_dyld_ap.get();
2910	}
2911
2912	const lldb::DataBufferSP
2913	Process::GetAuxvData()
2914	{
2915	return DataBufferSP ();
2916	}
2917
2918	JITLoaderList &
2919	Process::GetJITLoaders ()
2920	{
2921	if (!m_jit_loaders_ap)
2922	{
2923	m_jit_loaders_ap.reset(new JITLoaderList());
2924	JITLoader::LoadPlugins(this, *m_jit_loaders_ap);
2925	}
2926	return *m_jit_loaders_ap;
2927	}
2928
2929	SystemRuntime *
2930	Process::GetSystemRuntime ()
2931	{
2932	if (m_system_runtime_ap.get() == NULL__null)
2933	m_system_runtime_ap.reset (SystemRuntime::FindPlugin(this));
2934	return m_system_runtime_ap.get();
2935	}
2936
2937	Process::AttachCompletionHandler::AttachCompletionHandler (Process *process, uint32_t exec_count) :
2938	NextEventAction (process),
2939	m_exec_count (exec_count)
2940	{
2941	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
2942	if (log)
2943	log->Printf ("Process::AttachCompletionHandler::%s process=%p, exec_count=%" PRIu32"u", __FUNCTION__, static_cast<void*>(process), exec_count);
2944	}
2945
2946	Process::NextEventAction::EventActionResult
2947	Process::AttachCompletionHandler::PerformAction (lldb::EventSP &event_sp)
2948	{
2949	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
2950
2951	StateType state = ProcessEventData::GetStateFromEvent (event_sp.get());
2952	if (log)
2953	log->Printf ("Process::AttachCompletionHandler::%s called with state %s (%d)", __FUNCTION__, StateAsCString(state), static_cast<int> (state));
2954
2955	switch (state)
2956	{
2957	case eStateRunning:
2958	case eStateConnected:
2959	return eEventActionRetry;
2960
2961	case eStateStopped:
2962	case eStateCrashed:
2963	{
2964	// During attach, prior to sending the eStateStopped event,
2965	// lldb_private::Process subclasses must set the new process ID.
2966	assert (m_process->GetID() != LLDB_INVALID_PROCESS_ID)((m_process->GetID() != 0) ? static_cast<void> (0) : __assert_fail ("m_process->GetID() != 0", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 2966, __PRETTY_FUNCTION__));
2967	// We don't want these events to be reported, so go set the ShouldReportStop here:
2968	m_process->GetThreadList().SetShouldReportStop (eVoteNo);
2969
2970	if (m_exec_count > 0)
2971	{
2972	--m_exec_count;
2973
2974	if (log)
2975	log->Printf ("Process::AttachCompletionHandler::%s state %s: reduced remaining exec count to %" PRIu32"u" ", requesting resume", __FUNCTION__, StateAsCString(state), m_exec_count);
2976
2977	RequestResume();
2978	return eEventActionRetry;
2979	}
2980	else
2981	{
2982	if (log)
2983	log->Printf ("Process::AttachCompletionHandler::%s state %s: no more execs expected to start, continuing with attach", __FUNCTION__, StateAsCString(state));
2984
2985	m_process->CompleteAttach ();
2986	return eEventActionSuccess;
2987	}
2988	}
2989	break;
2990
2991	default:
2992	case eStateExited:
2993	case eStateInvalid:
2994	break;
2995	}
2996
2997	m_exit_string.assign ("No valid Process");
2998	return eEventActionExit;
2999	}
3000
3001	Process::NextEventAction::EventActionResult
3002	Process::AttachCompletionHandler::HandleBeingInterrupted()
3003	{
3004	return eEventActionSuccess;
3005	}
3006
3007	const char *
3008	Process::AttachCompletionHandler::GetExitString ()
3009	{
3010	return m_exit_string.c_str();
3011	}
3012
3013	Error
3014	Process::Attach (ProcessAttachInfo &attach_info)
3015	{
3016	m_abi_sp.reset();
3017	m_process_input_reader.reset();
3018	m_dyld_ap.reset();
3019	m_jit_loaders_ap.reset();
3020	m_system_runtime_ap.reset();
3021	m_os_ap.reset();
3022
3023	lldb::pid_t attach_pid = attach_info.GetProcessID();
3024	Error error;
3025	if (attach_pid == LLDB_INVALID_PROCESS_ID0)
3026	{
3027	char process_name[PATH_MAX4096];
3028
3029	if (attach_info.GetExecutableFile().GetPath (process_name, sizeof(process_name)))
3030	{
3031	const bool wait_for_launch = attach_info.GetWaitForLaunch();
3032
3033	if (wait_for_launch)
3034	{
3035	error = WillAttachToProcessWithName(process_name, wait_for_launch);
3036	if (error.Success())
3037	{
3038	if (m_public_run_lock.TrySetRunning())
3039	{
3040	m_should_detach = true;
3041	const bool restarted = false;
3042	SetPublicState (eStateAttaching, restarted);
3043	// Now attach using these arguments.
3044	error = DoAttachToProcessWithName (process_name, attach_info);
3045	}
3046	else
3047	{
3048	// This shouldn't happen
3049	error.SetErrorString("failed to acquire process run lock");
3050	}
3051
3052	if (error.Fail())
3053	{
3054	if (GetID() != LLDB_INVALID_PROCESS_ID0)
3055	{
3056	SetID (LLDB_INVALID_PROCESS_ID0);
3057	if (error.AsCString() == NULL__null)
3058	error.SetErrorString("attach failed");
3059
3060	SetExitStatus(-1, error.AsCString());
3061	}
3062	}
3063	else
3064	{
3065	SetNextEventAction(new Process::AttachCompletionHandler(this, attach_info.GetResumeCount()));
3066	StartPrivateStateThread();
3067	}
3068	return error;
3069	}
3070	}
3071	else
3072	{
3073	ProcessInstanceInfoList process_infos;
3074	PlatformSP platform_sp (m_target.GetPlatform ());
3075
3076	if (platform_sp)
3077	{
3078	ProcessInstanceInfoMatch match_info;
3079	match_info.GetProcessInfo() = attach_info;
3080	match_info.SetNameMatchType (eNameMatchEquals);
3081	platform_sp->FindProcesses (match_info, process_infos);
3082	const uint32_t num_matches = process_infos.GetSize();
3083	if (num_matches == 1)
3084	{
3085	attach_pid = process_infos.GetProcessIDAtIndex(0);
3086	// Fall through and attach using the above process ID
3087	}
3088	else
3089	{
3090	match_info.GetProcessInfo().GetExecutableFile().GetPath (process_name, sizeof(process_name));
3091	if (num_matches > 1)
3092	{
3093	StreamString s;
3094	ProcessInstanceInfo::DumpTableHeader (s, platform_sp.get(), true, false);
3095	for (size_t i = 0; i < num_matches; i++)
3096	{
3097	process_infos.GetProcessInfoAtIndex(i).DumpAsTableRow(s, platform_sp.get(), true, false);
3098	}
3099	error.SetErrorStringWithFormat ("more than one process named %s:\n%s",
3100	process_name,
3101	s.GetData());
3102	}
3103	else
3104	error.SetErrorStringWithFormat ("could not find a process named %s", process_name);
3105	}
3106	}
3107	else
3108	{
3109	error.SetErrorString ("invalid platform, can't find processes by name");
3110	return error;
3111	}
3112	}
3113	}
3114	else
3115	{
3116	error.SetErrorString ("invalid process name");
3117	}
3118	}
3119
3120	if (attach_pid != LLDB_INVALID_PROCESS_ID0)
3121	{
3122	error = WillAttachToProcessWithID(attach_pid);
3123	if (error.Success())
3124	{
3125
3126	if (m_public_run_lock.TrySetRunning())
3127	{
3128	// Now attach using these arguments.
3129	m_should_detach = true;
3130	const bool restarted = false;
3131	SetPublicState (eStateAttaching, restarted);
3132	error = DoAttachToProcessWithID (attach_pid, attach_info);
3133	}
3134	else
3135	{
3136	// This shouldn't happen
3137	error.SetErrorString("failed to acquire process run lock");
3138	}
3139
3140	if (error.Success())
3141	{
3142
3143	SetNextEventAction(new Process::AttachCompletionHandler(this, attach_info.GetResumeCount()));
3144	StartPrivateStateThread();
3145	}
3146	else
3147	{
3148	if (GetID() != LLDB_INVALID_PROCESS_ID0)
3149	{
3150	SetID (LLDB_INVALID_PROCESS_ID0);
3151	const char *error_string = error.AsCString();
3152	if (error_string == NULL__null)
3153	error_string = "attach failed";
3154
3155	SetExitStatus(-1, error_string);
3156	}
3157	}
3158	}
3159	}
3160	return error;
3161	}
3162
3163	void
3164	Process::CompleteAttach ()
3165	{
3166	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
3167	if (log)
3168	log->Printf ("Process::%s()", __FUNCTION__);
3169
3170	// Let the process subclass figure out at much as it can about the process
3171	// before we go looking for a dynamic loader plug-in.
3172	ArchSpec process_arch;
3173	DidAttach(process_arch);
3174
3175	if (process_arch.IsValid())
3176	{
3177	m_target.SetArchitecture(process_arch);
3178	if (log)
3179	{
3180	const char *triple_str = process_arch.GetTriple().getTriple().c_str ();
3181	log->Printf ("Process::%s replacing process architecture with DidAttach() architecture: %s",
3182	__FUNCTION__,
3183	triple_str ? triple_str : "<null>");
3184	}
3185	}
3186
3187	// We just attached. If we have a platform, ask it for the process architecture, and if it isn't
3188	// the same as the one we've already set, switch architectures.
3189	PlatformSP platform_sp (m_target.GetPlatform ());
3190	assert (platform_sp.get())((platform_sp.get()) ? static_cast<void> (0) : __assert_fail ("platform_sp.get()", "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 3190, __PRETTY_FUNCTION__));
3191	if (platform_sp)
3192	{
3193	const ArchSpec &target_arch = m_target.GetArchitecture();
3194	if (target_arch.IsValid() && !platform_sp->IsCompatibleArchitecture (target_arch, false, NULL__null))
3195	{
3196	ArchSpec platform_arch;
3197	platform_sp = platform_sp->GetPlatformForArchitecture (target_arch, &platform_arch);
3198	if (platform_sp)
3199	{
3200	m_target.SetPlatform (platform_sp);
3201	m_target.SetArchitecture(platform_arch);
3202	if (log)
3203	log->Printf ("Process::%s switching platform to %s and architecture to %s based on info from attach", __FUNCTION__, platform_sp->GetName().AsCString (""), platform_arch.GetTriple().getTriple().c_str ());
3204	}
3205	}
3206	else if (!process_arch.IsValid())
3207	{
3208	ProcessInstanceInfo process_info;
3209	platform_sp->GetProcessInfo (GetID(), process_info);
3210	const ArchSpec &process_arch = process_info.GetArchitecture();
3211	if (process_arch.IsValid() && !m_target.GetArchitecture().IsExactMatch(process_arch))
3212	{
3213	m_target.SetArchitecture (process_arch);
3214	if (log)
3215	log->Printf ("Process::%s switching architecture to %s based on info the platform retrieved for pid %" PRIu64"l" "u", __FUNCTION__, process_arch.GetTriple().getTriple().c_str (), GetID ());
3216	}
3217	}
3218	}
3219
3220	// We have completed the attach, now it is time to find the dynamic loader
3221	// plug-in
3222	DynamicLoader *dyld = GetDynamicLoader ();
3223	if (dyld)
3224	{
3225	dyld->DidAttach();
3226	if (log)
3227	{
3228	ModuleSP exe_module_sp = m_target.GetExecutableModule ();
3229	log->Printf ("Process::%s after DynamicLoader::DidAttach(), target executable is %s (using %s plugin)",
3230	__FUNCTION__,
3231	exe_module_sp ? exe_module_sp->GetFileSpec().GetPath().c_str () : "<none>",
3232	dyld->GetPluginName().AsCString ("<unnamed>"));
3233	}
3234	}
3235
3236	GetJITLoaders().DidAttach();
3237
3238	SystemRuntime *system_runtime = GetSystemRuntime ();
3239	if (system_runtime)
3240	{
3241	system_runtime->DidAttach();
3242	if (log)
3243	{
3244	ModuleSP exe_module_sp = m_target.GetExecutableModule ();
3245	log->Printf ("Process::%s after SystemRuntime::DidAttach(), target executable is %s (using %s plugin)",
3246	__FUNCTION__,
3247	exe_module_sp ? exe_module_sp->GetFileSpec().GetPath().c_str () : "<none>",
3248	system_runtime->GetPluginName().AsCString("<unnamed>"));
3249	}
3250	}
3251
3252	m_os_ap.reset (OperatingSystem::FindPlugin (this, NULL__null));
3253	// Figure out which one is the executable, and set that in our target:
3254	const ModuleList &target_modules = m_target.GetImages();
3255	Mutex::Locker modules_locker(target_modules.GetMutex());
3256	size_t num_modules = target_modules.GetSize();
3257	ModuleSP new_executable_module_sp;
3258
3259	for (size_t i = 0; i < num_modules; i++)
3260	{
3261	ModuleSP module_sp (target_modules.GetModuleAtIndexUnlocked (i));
3262	if (module_sp && module_sp->IsExecutable())
3263	{
3264	if (m_target.GetExecutableModulePointer() != module_sp.get())
3265	new_executable_module_sp = module_sp;
3266	break;
3267	}
3268	}
3269	if (new_executable_module_sp)
3270	{
3271	m_target.SetExecutableModule (new_executable_module_sp, false);
3272	if (log)
3273	{
3274	ModuleSP exe_module_sp = m_target.GetExecutableModule ();
3275	log->Printf ("Process::%s after looping through modules, target executable is %s",
3276	__FUNCTION__,
3277	exe_module_sp ? exe_module_sp->GetFileSpec().GetPath().c_str () : "<none>");
3278	}
3279	}
3280	}
3281
3282	Error
3283	Process::ConnectRemote (Stream strm, const char remote_url)
3284	{
3285	m_abi_sp.reset();
3286	m_process_input_reader.reset();
3287
3288	// Find the process and its architecture. Make sure it matches the architecture
3289	// of the current Target, and if not adjust it.
3290
3291	Error error (DoConnectRemote (strm, remote_url));
3292	if (error.Success())
3293	{
3294	if (GetID() != LLDB_INVALID_PROCESS_ID0)
3295	{
3296	EventSP event_sp;
3297	StateType state = WaitForProcessStopPrivate(NULL__null, event_sp);
3298
3299	if (state == eStateStopped \|\| state == eStateCrashed)
3300	{
3301	// If we attached and actually have a process on the other end, then
3302	// this ended up being the equivalent of an attach.
3303	CompleteAttach ();
3304
3305	// This delays passing the stopped event to listeners till
3306	// CompleteAttach gets a chance to complete...
3307	HandlePrivateEvent (event_sp);
3308
3309	}
3310	}
3311
3312	if (PrivateStateThreadIsValid ())
3313	ResumePrivateStateThread ();
3314	else
3315	StartPrivateStateThread ();
3316	}
3317	return error;
3318	}
3319
3320
3321	Error
3322	Process::PrivateResume ()
3323	{
3324	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)\|LIBLLDB_LOG_STEP(1u << 7)));
3325	if (log)
3326	log->Printf("Process::PrivateResume() m_stop_id = %u, public state: %s private state: %s",
3327	m_mod_id.GetStopID(),
3328	StateAsCString(m_public_state.GetValue()),
3329	StateAsCString(m_private_state.GetValue()));
3330
3331	Error error (WillResume());
3332	// Tell the process it is about to resume before the thread list
3333	if (error.Success())
3334	{
3335	// Now let the thread list know we are about to resume so it
3336	// can let all of our threads know that they are about to be
3337	// resumed. Threads will each be called with
3338	// Thread::WillResume(StateType) where StateType contains the state
3339	// that they are supposed to have when the process is resumed
3340	// (suspended/running/stepping). Threads should also check
3341	// their resume signal in lldb::Thread::GetResumeSignal()
3342	// to see if they are supposed to start back up with a signal.
3343	if (m_thread_list.WillResume())
3344	{
3345	// Last thing, do the PreResumeActions.
3346	if (!RunPreResumeActions())
3347	{
3348	error.SetErrorStringWithFormat ("Process::PrivateResume PreResumeActions failed, not resuming.");
3349	}
3350	else
3351	{
3352	m_mod_id.BumpResumeID();
3353	error = DoResume();
3354	if (error.Success())
3355	{
3356	DidResume();
3357	m_thread_list.DidResume();
3358	if (log)
3359	log->Printf ("Process thinks the process has resumed.");
3360	}
3361	}
3362	}
3363	else
3364	{
3365	// Somebody wanted to run without running. So generate a continue & a stopped event,
3366	// and let the world handle them.
3367	if (log)
3368	log->Printf ("Process::PrivateResume() asked to simulate a start & stop.");
3369
3370	SetPrivateState(eStateRunning);
3371	SetPrivateState(eStateStopped);
3372	}
3373	}
3374	else if (log)
3375	log->Printf ("Process::PrivateResume() got an error \"%s\".", error.AsCString("<unknown error>"));
3376	return error;
3377	}
3378
3379	Error
3380	Process::Halt (bool clear_thread_plans)
3381	{
3382	// Don't clear the m_clear_thread_plans_on_stop, only set it to true if
3383	// in case it was already set and some thread plan logic calls halt on its
3384	// own.
3385	m_clear_thread_plans_on_stop \|= clear_thread_plans;
3386
3387	// First make sure we aren't in the middle of handling an event, or we might restart. This is pretty weak, since
3388	// we could just straightaway get another event. It just narrows the window...
3389	m_currently_handling_event.WaitForValueEqualTo(false);
3390
3391
3392	// Pause our private state thread so we can ensure no one else eats
3393	// the stop event out from under us.
3394	Listener halt_listener ("lldb.process.halt_listener");
3395	HijackPrivateProcessEvents(&halt_listener);
3396
3397	EventSP event_sp;
3398	Error error (WillHalt());
3399
3400	bool restored_process_events = false;
3401	if (error.Success())
3402	{
3403
3404	bool caused_stop = false;
3405
3406	// Ask the process subclass to actually halt our process
3407	error = DoHalt(caused_stop);
3408	if (error.Success())
3409	{
3410	if (m_public_state.GetValue() == eStateAttaching)
3411	{
3412	// Don't hijack and eat the eStateExited as the code that was doing
3413	// the attach will be waiting for this event...
3414	RestorePrivateProcessEvents();
3415	restored_process_events = true;
3416	SetExitStatus(SIGKILL9, "Cancelled async attach.");
3417	Destroy ();
3418	}
3419	else
3420	{
3421	// If "caused_stop" is true, then DoHalt stopped the process. If
3422	// "caused_stop" is false, the process was already stopped.
3423	// If the DoHalt caused the process to stop, then we want to catch
3424	// this event and set the interrupted bool to true before we pass
3425	// this along so clients know that the process was interrupted by
3426	// a halt command.
3427	if (caused_stop)
3428	{
3429	// Wait for 1 second for the process to stop.
3430	TimeValue timeout_time;
3431	timeout_time = TimeValue::Now();
3432	timeout_time.OffsetWithSeconds(10);
3433	bool got_event = halt_listener.WaitForEvent (&timeout_time, event_sp);
3434	StateType state = ProcessEventData::GetStateFromEvent(event_sp.get());
3435
3436	if (!got_event \|\| state == eStateInvalid)
3437	{
3438	// We timeout out and didn't get a stop event...
3439	error.SetErrorStringWithFormat ("Halt timed out. State = %s", StateAsCString(GetState()));
3440	}
3441	else
3442	{
3443	if (StateIsStoppedState (state, false))
3444	{
3445	// We caused the process to interrupt itself, so mark this
3446	// as such in the stop event so clients can tell an interrupted
3447	// process from a natural stop
3448	ProcessEventData::SetInterruptedInEvent (event_sp.get(), true);
3449	}
3450	else
3451	{
3452	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
3453	if (log)
3454	log->Printf("Process::Halt() failed to stop, state is: %s", StateAsCString(state));
3455	error.SetErrorString ("Did not get stopped event after halt.");
3456	}
3457	}
3458	}
3459	DidHalt();
3460	}
3461	}
3462	}
3463	// Resume our private state thread before we post the event (if any)
3464	if (!restored_process_events)
3465	RestorePrivateProcessEvents();
3466
3467	// Post any event we might have consumed. If all goes well, we will have
3468	// stopped the process, intercepted the event and set the interrupted
3469	// bool in the event. Post it to the private event queue and that will end up
3470	// correctly setting the state.
3471	if (event_sp)
3472	m_private_state_broadcaster.BroadcastEvent(event_sp);
3473
3474	return error;
3475	}
3476
3477	Error
3478	Process::HaltForDestroyOrDetach(lldb::EventSP &exit_event_sp)
3479	{
3480	Error error;
3481	if (m_public_state.GetValue() == eStateRunning)
3482	{
3483	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
3484	if (log)
3485	log->Printf("Process::Destroy() About to halt.");
3486	error = Halt();
3487	if (error.Success())
3488	{
3489	// Consume the halt event.
3490	TimeValue timeout (TimeValue::Now());
3491	timeout.OffsetWithSeconds(1);
3492	StateType state = WaitForProcessToStop (&timeout, &exit_event_sp);
3493
3494	// If the process exited while we were waiting for it to stop, put the exited event into
3495	// the shared pointer passed in and return. Our caller doesn't need to do anything else, since
3496	// they don't have a process anymore...
3497
3498	if (state == eStateExited \|\| m_private_state.GetValue() == eStateExited)
3499	{
3500	if (log)
3501	log->Printf("Process::HaltForDestroyOrDetach() Process exited while waiting to Halt.");
3502	return error;
3503	}
3504	else
3505	exit_event_sp.reset(); // It is ok to consume any non-exit stop events
3506
3507	if (state != eStateStopped)
3508	{
3509	if (log)
3510	log->Printf("Process::HaltForDestroyOrDetach() Halt failed to stop, state is: %s", StateAsCString(state));
3511	// If we really couldn't stop the process then we should just error out here, but if the
3512	// lower levels just bobbled sending the event and we really are stopped, then continue on.
3513	StateType private_state = m_private_state.GetValue();
3514	if (private_state != eStateStopped)
3515	{
3516	return error;
3517	}
3518	}
3519	}
3520	else
3521	{
3522	if (log)
3523	log->Printf("Process::HaltForDestroyOrDetach() Halt got error: %s", error.AsCString());
3524	}
3525	}
3526	return error;
3527	}
3528
3529	Error
3530	Process::Detach (bool keep_stopped)
3531	{
3532	EventSP exit_event_sp;
3533	Error error;
3534	m_destroy_in_process = true;
3535
3536	error = WillDetach();
3537
3538	if (error.Success())
3539	{
3540	if (DetachRequiresHalt())
3541	{
3542	error = HaltForDestroyOrDetach (exit_event_sp);
3543	if (!error.Success())
3544	{
3545	m_destroy_in_process = false;
3546	return error;
3547	}
3548	else if (exit_event_sp)
3549	{
3550	// We shouldn't need to do anything else here. There's no process left to detach from...
3551	StopPrivateStateThread();
3552	m_destroy_in_process = false;
3553	return error;
3554	}
3555	}
3556
3557	m_thread_list.DiscardThreadPlans();
3558	DisableAllBreakpointSites();
3559
3560	error = DoDetach(keep_stopped);
3561	if (error.Success())
3562	{
3563	DidDetach();
3564	StopPrivateStateThread();
3565	}
3566	else
3567	{
3568	return error;
3569	}
3570	}
3571	m_destroy_in_process = false;
3572
3573	// If we exited when we were waiting for a process to stop, then
3574	// forward the event here so we don't lose the event
3575	if (exit_event_sp)
3576	{
3577	// Directly broadcast our exited event because we shut down our
3578	// private state thread above
3579	BroadcastEvent(exit_event_sp);
3580	}
3581
3582	// If we have been interrupted (to kill us) in the middle of running, we may not end up propagating
3583	// the last events through the event system, in which case we might strand the write lock. Unlock
3584	// it here so when we do to tear down the process we don't get an error destroying the lock.
3585
3586	m_public_run_lock.SetStopped();
3587	return error;
3588	}
3589
3590	Error
3591	Process::Destroy ()
3592	{
3593
3594	// Tell ourselves we are in the process of destroying the process, so that we don't do any unnecessary work
3595	// that might hinder the destruction. Remember to set this back to false when we are done. That way if the attempt
3596	// failed and the process stays around for some reason it won't be in a confused state.
3597
3598	m_destroy_in_process = true;
3599
3600	Error error (WillDestroy());
3601	if (error.Success())
3602	{
3603	EventSP exit_event_sp;
3604	if (DestroyRequiresHalt())
3605	{
3606	error = HaltForDestroyOrDetach(exit_event_sp);
3607	}
3608
3609	if (m_public_state.GetValue() != eStateRunning)
3610	{
3611	// Ditch all thread plans, and remove all our breakpoints: in case we have to restart the target to
3612	// kill it, we don't want it hitting a breakpoint...
3613	// Only do this if we've stopped, however, since if we didn't manage to halt it above, then
3614	// we're not going to have much luck doing this now.
3615	m_thread_list.DiscardThreadPlans();
3616	DisableAllBreakpointSites();
3617	}
3618
3619	error = DoDestroy();
3620	if (error.Success())
3621	{
3622	DidDestroy();
3623	StopPrivateStateThread();
3624	}
3625	m_stdio_communication.StopReadThread();
3626	m_stdio_communication.Disconnect();
3627
3628	if (m_process_input_reader)
3629	{
3630	m_process_input_reader->SetIsDone(true);
3631	m_process_input_reader->Cancel();
3632	m_process_input_reader.reset();
3633	}
3634
3635	// If we exited when we were waiting for a process to stop, then
3636	// forward the event here so we don't lose the event
3637	if (exit_event_sp)
3638	{
3639	// Directly broadcast our exited event because we shut down our
3640	// private state thread above
3641	BroadcastEvent(exit_event_sp);
3642	}
3643
3644	// If we have been interrupted (to kill us) in the middle of running, we may not end up propagating
3645	// the last events through the event system, in which case we might strand the write lock. Unlock
3646	// it here so when we do to tear down the process we don't get an error destroying the lock.
3647	m_public_run_lock.SetStopped();
3648	}
3649
3650	m_destroy_in_process = false;
3651
3652	return error;
3653	}
3654
3655	Error
3656	Process::Signal (int signal)
3657	{
3658	Error error (WillSignal());
3659	if (error.Success())
3660	{
3661	error = DoSignal(signal);
3662	if (error.Success())
3663	DidSignal();
3664	}
3665	return error;
3666	}
3667
3668	lldb::ByteOrder
3669	Process::GetByteOrder () const
3670	{
3671	return m_target.GetArchitecture().GetByteOrder();
3672	}
3673
3674	uint32_t
3675	Process::GetAddressByteSize () const
3676	{
3677	return m_target.GetArchitecture().GetAddressByteSize();
3678	}
3679
3680
3681	bool
3682	Process::ShouldBroadcastEvent (Event *event_ptr)
3683	{
3684	const StateType state = Process::ProcessEventData::GetStateFromEvent (event_ptr);
3685	bool return_value = true;
3686	Log *log(lldb_private::GetLogIfAnyCategoriesSet(LIBLLDB_LOG_EVENTS(1u << 4) \| LIBLLDB_LOG_PROCESS(1u << 1)));
3687
3688	switch (state)
3689	{
3690	case eStateConnected:
3691	case eStateAttaching:
3692	case eStateLaunching:
3693	case eStateDetached:
3694	case eStateExited:
3695	case eStateUnloaded:
3696	// These events indicate changes in the state of the debugging session, always report them.
3697	return_value = true;
3698	break;
3699	case eStateInvalid:
3700	// We stopped for no apparent reason, don't report it.
3701	return_value = false;
3702	break;
3703	case eStateRunning:
3704	case eStateStepping:
3705	// If we've started the target running, we handle the cases where we
3706	// are already running and where there is a transition from stopped to
3707	// running differently.
3708	// running -> running: Automatically suppress extra running events
3709	// stopped -> running: Report except when there is one or more no votes
3710	// and no yes votes.
3711	SynchronouslyNotifyStateChanged (state);
3712	if (m_force_next_event_delivery)
3713	return_value = true;
3714	else
3715	{
3716	switch (m_last_broadcast_state)
3717	{
3718	case eStateRunning:
3719	case eStateStepping:
3720	// We always suppress multiple runnings with no PUBLIC stop in between.
3721	return_value = false;
3722	break;
3723	default:
3724	// TODO: make this work correctly. For now always report
3725	// run if we aren't running so we don't miss any running
3726	// events. If I run the lldb/test/thread/a.out file and
3727	// break at main.cpp:58, run and hit the breakpoints on
3728	// multiple threads, then somehow during the stepping over
3729	// of all breakpoints no run gets reported.
3730
3731	// This is a transition from stop to run.
3732	switch (m_thread_list.ShouldReportRun (event_ptr))
3733	{
3734	case eVoteYes:
3735	case eVoteNoOpinion:
3736	return_value = true;
3737	break;
3738	case eVoteNo:
3739	return_value = false;
3740	break;
3741	}
3742	break;
3743	}
3744	}
3745	break;
3746	case eStateStopped:
3747	case eStateCrashed:
3748	case eStateSuspended:
3749	{
3750	// We've stopped. First see if we're going to restart the target.
3751	// If we are going to stop, then we always broadcast the event.
3752	// If we aren't going to stop, let the thread plans decide if we're going to report this event.
3753	// If no thread has an opinion, we don't report it.
3754
3755	RefreshStateAfterStop ();
3756	if (ProcessEventData::GetInterruptedFromEvent (event_ptr))
3757	{
3758	if (log)
3759	log->Printf ("Process::ShouldBroadcastEvent (%p) stopped due to an interrupt, state: %s",
3760	static_cast<void*>(event_ptr),
3761	StateAsCString(state));
3762	// Even though we know we are going to stop, we should let the threads have a look at the stop,
3763	// so they can properly set their state.
3764	m_thread_list.ShouldStop (event_ptr);
3765	return_value = true;
3766	}
3767	else
3768	{
3769	bool was_restarted = ProcessEventData::GetRestartedFromEvent (event_ptr);
3770	bool should_resume = false;
3771
3772	// It makes no sense to ask "ShouldStop" if we've already been restarted...
3773	// Asking the thread list is also not likely to go well, since we are running again.
3774	// So in that case just report the event.
3775
3776	if (!was_restarted)
3777	should_resume = m_thread_list.ShouldStop (event_ptr) == false;
3778
3779	if (was_restarted \|\| should_resume \|\| m_resume_requested)
3780	{
3781	Vote stop_vote = m_thread_list.ShouldReportStop (event_ptr);
3782	if (log)
3783	log->Printf ("Process::ShouldBroadcastEvent: should_stop: %i state: %s was_restarted: %i stop_vote: %d.",
3784	should_resume, StateAsCString(state),
3785	was_restarted, stop_vote);
3786
3787	switch (stop_vote)
3788	{
3789	case eVoteYes:
3790	return_value = true;
3791	break;
3792	case eVoteNoOpinion:
3793	case eVoteNo:
3794	return_value = false;
3795	break;
3796	}
3797
3798	if (!was_restarted)
3799	{
3800	if (log)
3801	log->Printf ("Process::ShouldBroadcastEvent (%p) Restarting process from state: %s",
3802	static_cast<void*>(event_ptr),
3803	StateAsCString(state));
3804	ProcessEventData::SetRestartedInEvent(event_ptr, true);
3805	PrivateResume ();
3806	}
3807
3808	}
3809	else
3810	{
3811	return_value = true;
3812	SynchronouslyNotifyStateChanged (state);
3813	}
3814	}
3815	}
3816	break;
3817	}
3818
3819	// Forcing the next event delivery is a one shot deal. So reset it here.
3820	m_force_next_event_delivery = false;
3821
3822	// We do some coalescing of events (for instance two consecutive running events get coalesced.)
3823	// But we only coalesce against events we actually broadcast. So we use m_last_broadcast_state
3824	// to track that. NB - you can't use "m_public_state.GetValue()" for that purpose, as was originally done,
3825	// because the PublicState reflects the last event pulled off the queue, and there may be several
3826	// events stacked up on the queue unserviced. So the PublicState may not reflect the last broadcasted event
3827	// yet. m_last_broadcast_state gets updated here.
3828
3829	if (return_value)
3830	m_last_broadcast_state = state;
3831
3832	if (log)
3833	log->Printf ("Process::ShouldBroadcastEvent (%p) => new state: %s, last broadcast state: %s - %s",
3834	static_cast<void*>(event_ptr), StateAsCString(state),
3835	StateAsCString(m_last_broadcast_state),
3836	return_value ? "YES" : "NO");
3837	return return_value;
3838	}
3839
3840
3841	bool
3842	Process::StartPrivateStateThread (bool force)
3843	{
3844	Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_EVENTS(1u << 4)));
3845
3846	bool already_running = PrivateStateThreadIsValid ();
3847	if (log)
3848	log->Printf ("Process::%s()%s ", __FUNCTION__, already_running ? " already running" : " starting private state thread");
3849
3850	if (!force && already_running)
3851	return true;
3852
3853	// Create a thread that watches our internal state and controls which
3854	// events make it to clients (into the DCProcess event queue).
3855	char thread_name[1024];
3856
3857	if (HostInfo::GetMaxThreadNameLength() <= 30)
3858	{
3859	// On platforms with abbreviated thread name lengths, choose thread names that fit within the limit.
3860	if (already_running)
3861	snprintf(thread_name, sizeof(thread_name), "intern-state-OV");
3862	else
3863	snprintf(thread_name, sizeof(thread_name), "intern-state");
3864	}
3865	else
3866	{
3867	if (already_running)
3868	snprintf(thread_name, sizeof(thread_name), "<lldb.process.internal-state-override(pid=%" PRIu64"l" "u" ")>", GetID());
3869	else
3870	snprintf(thread_name, sizeof(thread_name), "<lldb.process.internal-state(pid=%" PRIu64"l" "u" ")>", GetID());
3871	}
3872
3873	// Create the private state thread, and start it running.
3874	m_private_state_thread = ThreadLauncher::LaunchThread(thread_name, Process::PrivateStateThread, this, NULL__null);
3875	if (m_private_state_thread.IsJoinable())
3876	{
3877	ResumePrivateStateThread();
3878	return true;
3879	}
3880	else
3881	return false;
3882	}
3883
3884	void
3885	Process::PausePrivateStateThread ()
3886	{
3887	ControlPrivateStateThread (eBroadcastInternalStateControlPause);
3888	}
3889
3890	void
3891	Process::ResumePrivateStateThread ()
3892	{
3893	ControlPrivateStateThread (eBroadcastInternalStateControlResume);
3894	}
3895
3896	void
3897	Process::StopPrivateStateThread ()
3898	{
3899	if (PrivateStateThreadIsValid ())
3900	ControlPrivateStateThread (eBroadcastInternalStateControlStop);
3901	else
3902	{
3903	Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS(1u << 1)));
3904	if (log)
3905	log->Printf ("Went to stop the private state thread, but it was already invalid.");
3906	}
3907	}
3908
3909	void
3910	Process::ControlPrivateStateThread (uint32_t signal)
3911	{
3912	Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS(1u << 1)));
3913
3914	assert (signal == eBroadcastInternalStateControlStop \|\|((signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume) ? static_cast <void> (0) : __assert_fail ("signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 3916, __PRETTY_FUNCTION__))
3915	signal == eBroadcastInternalStateControlPause \|\|((signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume) ? static_cast <void> (0) : __assert_fail ("signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 3916, __PRETTY_FUNCTION__))
3916	signal == eBroadcastInternalStateControlResume)((signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume) ? static_cast <void> (0) : __assert_fail ("signal == eBroadcastInternalStateControlStop \|\| signal == eBroadcastInternalStateControlPause \|\| signal == eBroadcastInternalStateControlResume" , "/tmp/buildd/llvm-toolchain-snapshot-3.6~svn219601/tools/lldb/source/Target/Process.cpp" , 3916, __PRETTY_FUNCTION__));
3917
3918	if (log)
3919	log->Printf ("Process::%s (signal = %d)", __FUNCTION__, signal);
3920
3921	// Signal the private state thread. First we should copy this is case the
3922	// thread starts exiting since the private state thread will NULL this out
3923	// when it exits
3924	HostThread private_state_thread(m_private_state_thread);
3925	if (private_state_thread.IsJoinable())
3926	{
3927	TimeValue timeout_time;
3928	bool timed_out;
3929
3930	m_private_state_control_broadcaster.BroadcastEvent (signal, NULL__null);
3931
3932	timeout_time = TimeValue::Now();
3933	timeout_time.OffsetWithSeconds(2);
3934	if (log)
3935	log->Printf ("Sending control event of type: %d.", signal);
3936	m_private_state_control_wait.WaitForValueEqualTo (true, &timeout_time, &timed_out);
3937	m_private_state_control_wait.SetValue (false, eBroadcastNever);
3938
3939	if (signal == eBroadcastInternalStateControlStop)
3940	{
3941	if (timed_out)
3942	{
3943	Error error = private_state_thread.Cancel();
3944	if (log)
3945	log->Printf ("Timed out responding to the control event, cancel got error: \"%s\".", error.AsCString());
3946	}
3947	else
3948	{
3949	if (log)
3950	log->Printf ("The control event killed the private state thread without having to cancel.");
3951	}
3952
3953	thread_result_t result = NULL__null;
3954	private_state_thread.Join(&result);
3955	m_private_state_thread.Reset();
3956	}
3957	}
3958	else
3959	{
3960	if (log)
3961	log->Printf ("Private state thread already dead, no need to signal it to stop.");
3962	}
3963	}
3964
3965	void
3966	Process::SendAsyncInterrupt ()
3967	{
3968	if (PrivateStateThreadIsValid())
3969	m_private_state_broadcaster.BroadcastEvent (Process::eBroadcastBitInterrupt, NULL__null);
3970	else
3971	BroadcastEvent (Process::eBroadcastBitInterrupt, NULL__null);
3972	}
3973
3974	void
3975	Process::HandlePrivateEvent (EventSP &event_sp)
3976	{
3977	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
3978	m_resume_requested = false;
3979
3980	m_currently_handling_event.SetValue(true, eBroadcastNever);
3981
3982	const StateType new_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
3983
3984	// First check to see if anybody wants a shot at this event:
3985	if (m_next_event_action_ap.get() != NULL__null)
3986	{
3987	NextEventAction::EventActionResult action_result = m_next_event_action_ap->PerformAction(event_sp);
3988	if (log)
3989	log->Printf ("Ran next event action, result was %d.", action_result);
3990
3991	switch (action_result)
3992	{
3993	case NextEventAction::eEventActionSuccess:
3994	SetNextEventAction(NULL__null);
3995	break;
3996
3997	case NextEventAction::eEventActionRetry:
3998	break;
3999
4000	case NextEventAction::eEventActionExit:
4001	// Handle Exiting Here. If we already got an exited event,
4002	// we should just propagate it. Otherwise, swallow this event,
4003	// and set our state to exit so the next event will kill us.
4004	if (new_state != eStateExited)
4005	{
4006	// FIXME: should cons up an exited event, and discard this one.
4007	SetExitStatus(0, m_next_event_action_ap->GetExitString());
4008	m_currently_handling_event.SetValue(false, eBroadcastAlways);
4009	SetNextEventAction(NULL__null);
4010	return;
4011	}
4012	SetNextEventAction(NULL__null);
4013	break;
4014	}
4015	}
4016
4017	// See if we should broadcast this state to external clients?
4018	const bool should_broadcast = ShouldBroadcastEvent (event_sp.get());
4019
4020	if (should_broadcast)
4021	{
4022	const bool is_hijacked = IsHijackedForEvent(eBroadcastBitStateChanged);
4023	if (log)
4024	{
4025	log->Printf ("Process::%s (pid = %" PRIu64"l" "u" ") broadcasting new state %s (old state %s) to %s",
4026	__FUNCTION__,
4027	GetID(),
4028	StateAsCString(new_state),
4029	StateAsCString (GetState ()),
4030	is_hijacked ? "hijacked" : "public");
4031	}
4032	Process::ProcessEventData::SetUpdateStateOnRemoval(event_sp.get());
4033	if (StateIsRunningState (new_state))
4034	{
4035	// Only push the input handler if we aren't fowarding events,
4036	// as this means the curses GUI is in use...
4037	// Or don't push it if we are launching since it will come up stopped.
4038	if (!GetTarget().GetDebugger().IsForwardingEvents() && new_state != eStateLaunching)
4039	PushProcessIOHandler ();
4040	m_iohandler_sync.SetValue(true, eBroadcastAlways);
4041	}
4042	else if (StateIsStoppedState(new_state, false))
4043	{
4044	m_iohandler_sync.SetValue(false, eBroadcastNever);
4045	if (!Process::ProcessEventData::GetRestartedFromEvent(event_sp.get()))
4046	{
4047	// If the lldb_private::Debugger is handling the events, we don't
4048	// want to pop the process IOHandler here, we want to do it when
4049	// we receive the stopped event so we can carefully control when
4050	// the process IOHandler is popped because when we stop we want to
4051	// display some text stating how and why we stopped, then maybe some
4052	// process/thread/frame info, and then we want the "(lldb) " prompt
4053	// to show up. If we pop the process IOHandler here, then we will
4054	// cause the command interpreter to become the top IOHandler after
4055	// the process pops off and it will update its prompt right away...
4056	// See the Debugger.cpp file where it calls the function as
4057	// "process_sp->PopProcessIOHandler()" to see where I am talking about.
4058	// Otherwise we end up getting overlapping "(lldb) " prompts and
4059	// garbled output.
4060	//
4061	// If we aren't handling the events in the debugger (which is indicated
4062	// by "m_target.GetDebugger().IsHandlingEvents()" returning false) or we
4063	// are hijacked, then we always pop the process IO handler manually.
4064	// Hijacking happens when the internal process state thread is running
4065	// thread plans, or when commands want to run in synchronous mode
4066	// and they call "process->WaitForProcessToStop()". An example of something
4067	// that will hijack the events is a simple expression:
4068	//
4069	// (lldb) expr (int)puts("hello")
4070	//
4071	// This will cause the internal process state thread to resume and halt
4072	// the process (and _it_ will hijack the eBroadcastBitStateChanged
4073	// events) and we do need the IO handler to be pushed and popped
4074	// correctly.
4075
4076	if (is_hijacked \|\| m_target.GetDebugger().IsHandlingEvents() == false)
4077	PopProcessIOHandler ();
4078	}
4079	}
4080
4081	BroadcastEvent (event_sp);
4082	}
4083	else
4084	{
4085	if (log)
4086	{
4087	log->Printf ("Process::%s (pid = %" PRIu64"l" "u" ") suppressing state %s (old state %s): should_broadcast == false",
4088	__FUNCTION__,
4089	GetID(),
4090	StateAsCString(new_state),
4091	StateAsCString (GetState ()));
4092	}
4093	}
4094	m_currently_handling_event.SetValue(false, eBroadcastAlways);
4095	}
4096
4097	thread_result_t
4098	Process::PrivateStateThread (void *arg)
4099	{
4100	Process proc = static_cast<Process> (arg);
4101	thread_result_t result = proc->RunPrivateStateThread();
4102	return result;
4103	}
4104
4105	thread_result_t
4106	Process::RunPrivateStateThread ()
4107	{
4108	bool control_only = true;
4109	m_private_state_control_wait.SetValue (false, eBroadcastNever);
4110
4111	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
4112	if (log)
4113	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") thread starting...",
4114	__FUNCTION__, static_cast<void*>(this), GetID());
4115
4116	bool exit_now = false;
4117	while (!exit_now)
4118	{
4119	EventSP event_sp;
4120	WaitForEventsPrivate (NULL__null, event_sp, control_only);
4121	if (event_sp->BroadcasterIs(&m_private_state_control_broadcaster))
4122	{
4123	if (log)
4124	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") got a control event: %d",
4125	__FUNCTION__, static_cast<void*>(this), GetID(),
4126	event_sp->GetType());
4127
4128	switch (event_sp->GetType())
4129	{
4130	case eBroadcastInternalStateControlStop:
4131	exit_now = true;
4132	break; // doing any internal state management below
4133
4134	case eBroadcastInternalStateControlPause:
4135	control_only = true;
4136	break;
4137
4138	case eBroadcastInternalStateControlResume:
4139	control_only = false;
4140	break;
4141	}
4142
4143	m_private_state_control_wait.SetValue (true, eBroadcastAlways);
4144	continue;
4145	}
4146	else if (event_sp->GetType() == eBroadcastBitInterrupt)
4147	{
4148	if (m_public_state.GetValue() == eStateAttaching)
4149	{
4150	if (log)
4151	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") woke up with an interrupt while attaching - forwarding interrupt.",
4152	__FUNCTION__, static_cast<void*>(this),
4153	GetID());
4154	BroadcastEvent (eBroadcastBitInterrupt, NULL__null);
4155	}
4156	else
4157	{
4158	if (log)
4159	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") woke up with an interrupt - Halting.",
4160	__FUNCTION__, static_cast<void*>(this),
4161	GetID());
4162	Halt();
4163	}
4164	continue;
4165	}
4166
4167	const StateType internal_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
4168
4169	if (internal_state != eStateInvalid)
4170	{
4171	if (m_clear_thread_plans_on_stop &&
4172	StateIsStoppedState(internal_state, true))
4173	{
4174	m_clear_thread_plans_on_stop = false;
4175	m_thread_list.DiscardThreadPlans();
4176	}
4177	HandlePrivateEvent (event_sp);
4178	}
4179
4180	if (internal_state == eStateInvalid \|\|
4181	internal_state == eStateExited \|\|
4182	internal_state == eStateDetached )
4183	{
4184	if (log)
4185	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") about to exit with internal state %s...",
4186	__FUNCTION__, static_cast<void*>(this), GetID(),
4187	StateAsCString(internal_state));
4188
4189	break;
4190	}
4191	}
4192
4193	// Verify log is still enabled before attempting to write to it...
4194	if (log)
4195	log->Printf ("Process::%s (arg = %p, pid = %" PRIu64"l" "u" ") thread exiting...",
4196	__FUNCTION__, static_cast<void*>(this), GetID());
4197
4198	m_public_run_lock.SetStopped();
4199	m_private_state_control_wait.SetValue (true, eBroadcastAlways);
4200	m_private_state_thread.Reset();
4201	return NULL__null;
4202	}
4203
4204	//------------------------------------------------------------------
4205	// Process Event Data
4206	//------------------------------------------------------------------
4207
4208	Process::ProcessEventData::ProcessEventData () :
4209	EventData (),
4210	m_process_sp (),
4211	m_state (eStateInvalid),
4212	m_restarted (false),
4213	m_update_state (0),
4214	m_interrupted (false)
4215	{
4216	}
4217
4218	Process::ProcessEventData::ProcessEventData (const ProcessSP &process_sp, StateType state) :
4219	EventData (),
4220	m_process_sp (process_sp),
4221	m_state (state),
4222	m_restarted (false),
4223	m_update_state (0),
4224	m_interrupted (false)
4225	{
4226	}
4227
4228	Process::ProcessEventData::~ProcessEventData()
4229	{
4230	}
4231
4232	const ConstString &
4233	Process::ProcessEventData::GetFlavorString ()
4234	{
4235	static ConstString g_flavor ("Process::ProcessEventData");
4236	return g_flavor;
4237	}
4238
4239	const ConstString &
4240	Process::ProcessEventData::GetFlavor () const
4241	{
4242	return ProcessEventData::GetFlavorString ();
4243	}
4244
4245	void
4246	Process::ProcessEventData::DoOnRemoval (Event *event_ptr)
4247	{
4248	// This function gets called twice for each event, once when the event gets pulled
4249	// off of the private process event queue, and then any number of times, first when it gets pulled off of
4250	// the public event queue, then other times when we're pretending that this is where we stopped at the
4251	// end of expression evaluation. m_update_state is used to distinguish these
4252	// three cases; it is 0 when we're just pulling it off for private handling,
4253	// and > 1 for expression evaluation, and we don't want to do the breakpoint command handling then.
4254	if (m_update_state != 1)
4255	return;
4256
4257	m_process_sp->SetPublicState (m_state, Process::ProcessEventData::GetRestartedFromEvent(event_ptr));
4258
4259	// If this is a halt event, even if the halt stopped with some reason other than a plain interrupt (e.g. we had
4260	// already stopped for a breakpoint when the halt request came through) don't do the StopInfo actions, as they may
4261	// end up restarting the process.
4262	if (m_interrupted)
4263	return;
4264
4265	// If we're stopped and haven't restarted, then do the StopInfo actions here:
4266	if (m_state == eStateStopped && ! m_restarted)
4267	{
4268	ThreadList &curr_thread_list = m_process_sp->GetThreadList();
4269	uint32_t num_threads = curr_thread_list.GetSize();
4270	uint32_t idx;
4271
4272	// The actions might change one of the thread's stop_info's opinions about whether we should
4273	// stop the process, so we need to query that as we go.
4274
4275	// One other complication here, is that we try to catch any case where the target has run (except for expressions)
4276	// and immediately exit, but if we get that wrong (which is possible) then the thread list might have changed, and
4277	// that would cause our iteration here to crash. We could make a copy of the thread list, but we'd really like
4278	// to also know if it has changed at all, so we make up a vector of the thread ID's and check what we get back
4279	// against this list & bag out if anything differs.
4280	std::vector<uint32_t> thread_index_array(num_threads);
4281	for (idx = 0; idx < num_threads; ++idx)
4282	thread_index_array[idx] = curr_thread_list.GetThreadAtIndex(idx)->GetIndexID();
4283
4284	// Use this to track whether we should continue from here. We will only continue the target running if
4285	// no thread says we should stop. Of course if some thread's PerformAction actually sets the target running,
4286	// then it doesn't matter what the other threads say...
4287
4288	bool still_should_stop = false;
4289
4290	// Sometimes - for instance if we have a bug in the stub we are talking to, we stop but no thread has a
4291	// valid stop reason. In that case we should just stop, because we have no way of telling what the right
4292	// thing to do is, and it's better to let the user decide than continue behind their backs.
4293
4294	bool does_anybody_have_an_opinion = false;
4295
4296	for (idx = 0; idx < num_threads; ++idx)
4297	{
4298	curr_thread_list = m_process_sp->GetThreadList();
4299	if (curr_thread_list.GetSize() != num_threads)
4300	{
4301	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STEP(1u << 7) \| LIBLLDB_LOG_PROCESS(1u << 1)));
4302	if (log)
4303	log->Printf("Number of threads changed from %u to %u while processing event.", num_threads, curr_thread_list.GetSize());
4304	break;
4305	}
4306
4307	lldb::ThreadSP thread_sp = curr_thread_list.GetThreadAtIndex(idx);
4308
4309	if (thread_sp->GetIndexID() != thread_index_array[idx])
4310	{
4311	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STEP(1u << 7) \| LIBLLDB_LOG_PROCESS(1u << 1)));
4312	if (log)
4313	log->Printf("The thread at position %u changed from %u to %u while processing event.",
4314	idx,
4315	thread_index_array[idx],
4316	thread_sp->GetIndexID());
4317	break;
4318	}
4319
4320	StopInfoSP stop_info_sp = thread_sp->GetStopInfo ();
4321	if (stop_info_sp && stop_info_sp->IsValid())
4322	{
4323	does_anybody_have_an_opinion = true;
4324	bool this_thread_wants_to_stop;
4325	if (stop_info_sp->GetOverrideShouldStop())
4326	{
4327	this_thread_wants_to_stop = stop_info_sp->GetOverriddenShouldStopValue();
4328	}
4329	else
4330	{
4331	stop_info_sp->PerformAction(event_ptr);
4332	// The stop action might restart the target. If it does, then we want to mark that in the
4333	// event so that whoever is receiving it will know to wait for the running event and reflect
4334	// that state appropriately.
4335	// We also need to stop processing actions, since they aren't expecting the target to be running.
4336
4337	// FIXME: we might have run.
4338	if (stop_info_sp->HasTargetRunSinceMe())
4339	{
4340	SetRestarted (true);
4341	break;
4342	}
4343
4344	this_thread_wants_to_stop = stop_info_sp->ShouldStop(event_ptr);
4345	}
4346
4347	if (still_should_stop == false)
4348	still_should_stop = this_thread_wants_to_stop;
4349	}
4350	}
4351
4352
4353	if (!GetRestarted())
4354	{
4355	if (!still_should_stop && does_anybody_have_an_opinion)
4356	{
4357	// We've been asked to continue, so do that here.
4358	SetRestarted(true);
4359	// Use the public resume method here, since this is just
4360	// extending a public resume.
4361	m_process_sp->PrivateResume();
4362	}
4363	else
4364	{
4365	// If we didn't restart, run the Stop Hooks here:
4366	// They might also restart the target, so watch for that.
4367	m_process_sp->GetTarget().RunStopHooks();
4368	if (m_process_sp->GetPrivateState() == eStateRunning)
4369	SetRestarted(true);
4370	}
4371	}
4372	}
4373	}
4374
4375	void
4376	Process::ProcessEventData::Dump (Stream *s) const
4377	{
4378	if (m_process_sp)
4379	s->Printf(" process = %p (pid = %" PRIu64"l" "u" "), ",
4380	static_cast<void*>(m_process_sp.get()), m_process_sp->GetID());
4381
4382	s->Printf("state = %s", StateAsCString(GetState()));
4383	}
4384
4385	const Process::ProcessEventData *
4386	Process::ProcessEventData::GetEventDataFromEvent (const Event *event_ptr)
4387	{
4388	if (event_ptr)
4389	{
4390	const EventData *event_data = event_ptr->GetData();
4391	if (event_data && event_data->GetFlavor() == ProcessEventData::GetFlavorString())
4392	return static_cast <const ProcessEventData *> (event_ptr->GetData());
4393	}
4394	return NULL__null;
4395	}
4396
4397	ProcessSP
4398	Process::ProcessEventData::GetProcessFromEvent (const Event *event_ptr)
4399	{
4400	ProcessSP process_sp;
4401	const ProcessEventData *data = GetEventDataFromEvent (event_ptr);
4402	if (data)
4403	process_sp = data->GetProcessSP();
4404	return process_sp;
4405	}
4406
4407	StateType
4408	Process::ProcessEventData::GetStateFromEvent (const Event *event_ptr)
4409	{
4410	const ProcessEventData *data = GetEventDataFromEvent (event_ptr);
4411	if (data == NULL__null)
4412	return eStateInvalid;
4413	else
4414	return data->GetState();
4415	}
4416
4417	bool
4418	Process::ProcessEventData::GetRestartedFromEvent (const Event *event_ptr)
4419	{
4420	const ProcessEventData *data = GetEventDataFromEvent (event_ptr);
4421	if (data == NULL__null)
4422	return false;
4423	else
4424	return data->GetRestarted();
4425	}
4426
4427	void
4428	Process::ProcessEventData::SetRestartedInEvent (Event *event_ptr, bool new_value)
4429	{
4430	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4431	if (data != NULL__null)
4432	data->SetRestarted(new_value);
4433	}
4434
4435	size_t
4436	Process::ProcessEventData::GetNumRestartedReasons(const Event *event_ptr)
4437	{
4438	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4439	if (data != NULL__null)
4440	return data->GetNumRestartedReasons();
4441	else
4442	return 0;
4443	}
4444
4445	const char *
4446	Process::ProcessEventData::GetRestartedReasonAtIndex(const Event *event_ptr, size_t idx)
4447	{
4448	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4449	if (data != NULL__null)
4450	return data->GetRestartedReasonAtIndex(idx);
4451	else
4452	return NULL__null;
4453	}
4454
4455	void
4456	Process::ProcessEventData::AddRestartedReason (Event event_ptr, const char reason)
4457	{
4458	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4459	if (data != NULL__null)
4460	data->AddRestartedReason(reason);
4461	}
4462
4463	bool
4464	Process::ProcessEventData::GetInterruptedFromEvent (const Event *event_ptr)
4465	{
4466	const ProcessEventData *data = GetEventDataFromEvent (event_ptr);
4467	if (data == NULL__null)
4468	return false;
4469	else
4470	return data->GetInterrupted ();
4471	}
4472
4473	void
4474	Process::ProcessEventData::SetInterruptedInEvent (Event *event_ptr, bool new_value)
4475	{
4476	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4477	if (data != NULL__null)
4478	data->SetInterrupted(new_value);
4479	}
4480
4481	bool
4482	Process::ProcessEventData::SetUpdateStateOnRemoval (Event *event_ptr)
4483	{
4484	ProcessEventData data = const_cast<ProcessEventData >(GetEventDataFromEvent (event_ptr));
4485	if (data)
4486	{
4487	data->SetUpdateStateOnRemoval();
4488	return true;
4489	}
4490	return false;
4491	}
4492
4493	lldb::TargetSP
4494	Process::CalculateTarget ()
4495	{
4496	return m_target.shared_from_this();
4497	}
4498
4499	void
4500	Process::CalculateExecutionContext (ExecutionContext &exe_ctx)
4501	{
4502	exe_ctx.SetTargetPtr (&m_target);
4503	exe_ctx.SetProcessPtr (this);
4504	exe_ctx.SetThreadPtr(NULL__null);
4505	exe_ctx.SetFramePtr (NULL__null);
4506	}
4507
4508	//uint32_t
4509	//Process::ListProcessesMatchingName (const char *name, StringList &matches, std::vector<lldb::pid_t> &pids)
4510	//{
4511	// return 0;
4512	//}
4513	//
4514	//ArchSpec
4515	//Process::GetArchSpecForExistingProcess (lldb::pid_t pid)
4516	//{
4517	// return Host::GetArchSpecForExistingProcess (pid);
4518	//}
4519	//
4520	//ArchSpec
4521	//Process::GetArchSpecForExistingProcess (const char *process_name)
4522	//{
4523	// return Host::GetArchSpecForExistingProcess (process_name);
4524	//}
4525	//
4526	void
4527	Process::AppendSTDOUT (const char * s, size_t len)
4528	{
4529	Mutex::Locker locker (m_stdio_communication_mutex);
4530	m_stdout_data.append (s, len);
4531	BroadcastEventIfUnique (eBroadcastBitSTDOUT, new ProcessEventData (shared_from_this(), GetState()));
4532	}
4533
4534	void
4535	Process::AppendSTDERR (const char * s, size_t len)
4536	{
4537	Mutex::Locker locker (m_stdio_communication_mutex);
4538	m_stderr_data.append (s, len);
4539	BroadcastEventIfUnique (eBroadcastBitSTDERR, new ProcessEventData (shared_from_this(), GetState()));
4540	}
4541
4542	void
4543	Process::BroadcastAsyncProfileData(const std::string &one_profile_data)
4544	{
4545	Mutex::Locker locker (m_profile_data_comm_mutex);
4546	m_profile_data.push_back(one_profile_data);
4547	BroadcastEventIfUnique (eBroadcastBitProfileData, new ProcessEventData (shared_from_this(), GetState()));
4548	}
4549
4550	size_t
4551	Process::GetAsyncProfileData (char *buf, size_t buf_size, Error &error)
4552	{
4553	Mutex::Locker locker(m_profile_data_comm_mutex);
4554	if (m_profile_data.empty())
4555	return 0;
4556
4557	std::string &one_profile_data = m_profile_data.front();
4558	size_t bytes_available = one_profile_data.size();
4559	if (bytes_available > 0)
4560	{
4561	Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
4562	if (log)
4563	log->Printf ("Process::GetProfileData (buf = %p, size = %" PRIu64"l" "u" ")",
4564	static_cast<void*>(buf),
4565	static_cast<uint64_t>(buf_size));
4566	if (bytes_available > buf_size)
4567	{
4568	memcpy(buf, one_profile_data.c_str(), buf_size);
4569	one_profile_data.erase(0, buf_size);
4570	bytes_available = buf_size;
4571	}
4572	else
4573	{
4574	memcpy(buf, one_profile_data.c_str(), bytes_available);
4575	m_profile_data.erase(m_profile_data.begin());
4576	}
4577	}
4578	return bytes_available;
4579	}
4580
4581
4582	//------------------------------------------------------------------
4583	// Process STDIO
4584	//------------------------------------------------------------------
4585
4586	size_t
4587	Process::GetSTDOUT (char *buf, size_t buf_size, Error &error)
4588	{
4589	Mutex::Locker locker(m_stdio_communication_mutex);
4590	size_t bytes_available = m_stdout_data.size();
4591	if (bytes_available > 0)
4592	{
4593	Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
4594	if (log)
4595	log->Printf ("Process::GetSTDOUT (buf = %p, size = %" PRIu64"l" "u" ")",
4596	static_cast<void*>(buf),
4597	static_cast<uint64_t>(buf_size));
4598	if (bytes_available > buf_size)
4599	{
4600	memcpy(buf, m_stdout_data.c_str(), buf_size);
4601	m_stdout_data.erase(0, buf_size);
4602	bytes_available = buf_size;
4603	}
4604	else
4605	{
4606	memcpy(buf, m_stdout_data.c_str(), bytes_available);
4607	m_stdout_data.clear();
4608	}
4609	}
4610	return bytes_available;
4611	}
4612
4613
4614	size_t
4615	Process::GetSTDERR (char *buf, size_t buf_size, Error &error)
4616	{
4617	Mutex::Locker locker(m_stdio_communication_mutex);
4618	size_t bytes_available = m_stderr_data.size();
4619	if (bytes_available > 0)
4620	{
4621	Log *log (lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
4622	if (log)
4623	log->Printf ("Process::GetSTDERR (buf = %p, size = %" PRIu64"l" "u" ")",
4624	static_cast<void*>(buf),
4625	static_cast<uint64_t>(buf_size));
4626	if (bytes_available > buf_size)
4627	{
4628	memcpy(buf, m_stderr_data.c_str(), buf_size);
4629	m_stderr_data.erase(0, buf_size);
4630	bytes_available = buf_size;
4631	}
4632	else
4633	{
4634	memcpy(buf, m_stderr_data.c_str(), bytes_available);
4635	m_stderr_data.clear();
4636	}
4637	}
4638	return bytes_available;
4639	}
4640
4641	void
4642	Process::STDIOReadThreadBytesReceived (void baton, const void src, size_t src_len)
4643	{
4644	Process process = (Process ) baton;
4645	process->AppendSTDOUT (static_cast<const char *>(src), src_len);
4646	}
4647
4648	class IOHandlerProcessSTDIO :
4649	public IOHandler
4650	{
4651	public:
4652	IOHandlerProcessSTDIO (Process *process,
4653	int write_fd) :
4654	IOHandler(process->GetTarget().GetDebugger()),
4655	m_process (process),
4656	m_read_file (),
4657	m_write_file (write_fd, false),
4658	m_pipe ()
4659	{
4660	m_read_file.SetDescriptor(GetInputFD(), false);
4661	}
4662
4663	virtual
4664	~IOHandlerProcessSTDIO ()
4665	{
4666
4667	}
4668
4669	bool
4670	OpenPipes ()
4671	{
4672	if (m_pipe.IsValid())
4673	return true;
4674	return m_pipe.Open();
4675	}
4676
4677	void
4678	ClosePipes()
4679	{
4680	m_pipe.Close();
4681	}
4682
4683	// Each IOHandler gets to run until it is done. It should read data
4684	// from the "in" and place output into "out" and "err and return
4685	// when done.
4686	virtual void
4687	Run ()
4688	{
4689	if (m_read_file.IsValid() && m_write_file.IsValid())
4690	{
4691	SetIsDone(false);
4692	if (OpenPipes())
4693	{
4694	const int read_fd = m_read_file.GetDescriptor();
4695	const int pipe_read_fd = m_pipe.GetReadFileDescriptor();
4696	TerminalState terminal_state;
4697	terminal_state.Save (read_fd, false);
4698	Terminal terminal(read_fd);
4699	terminal.SetCanonical(false);
4700	terminal.SetEcho(false);
4701	// FD_ZERO, FD_SET are not supported on windows
4702	#ifndef _WIN32
4703	while (!GetIsDone())
4704	{
4705	fd_set read_fdset;
4706	FD_ZERO (&read_fdset)do { int __d0, __d1; __asm__ __volatile__ ("cld; rep; " "stosq" : "=c" (__d0), "=D" (__d1) : "a" (0), "0" (sizeof (fd_set) / sizeof (__fd_mask)), "1" (&((&read_fdset)->fds_bits )[0]) : "memory"); } while (0);
4707	FD_SET (read_fd, &read_fdset)((void) (((&read_fdset)->fds_bits)[__extension__ ({ long int __d = (read_fd); (__builtin_constant_p (__d) ? (0 <= __d && __d < 1024 ? (__d / (8 * (int) sizeof (__fd_mask ))) : __fdelt_warn (__d)) : __fdelt_chk (__d)); })] \|= ((__fd_mask ) 1 << ((read_fd) % (8 * (int) sizeof (__fd_mask))))));
4708	FD_SET (pipe_read_fd, &read_fdset)((void) (((&read_fdset)->fds_bits)[__extension__ ({ long int __d = (pipe_read_fd); (__builtin_constant_p (__d) ? (0 <= __d && __d < 1024 ? (__d / (8 * (int) sizeof (__fd_mask ))) : __fdelt_warn (__d)) : __fdelt_chk (__d)); })] \|= ((__fd_mask ) 1 << ((pipe_read_fd) % (8 * (int) sizeof (__fd_mask)) ))));
4709	const int nfds = std::max<int>(read_fd, pipe_read_fd) + 1;
4710	int num_set_fds = select (nfds, &read_fdset, NULL__null, NULL__null, NULL__null);
4711	if (num_set_fds < 0)
4712	{
4713	const int select_errno = errno(*__errno_location ());
4714
4715	if (select_errno != EINTR4)
4716	SetIsDone(true);
4717	}
4718	else if (num_set_fds > 0)
4719	{
4720	char ch = 0;
4721	size_t n;
4722	if (FD_ISSET (read_fd, &read_fdset)((((&read_fdset)->fds_bits)[__extension__ ({ long int __d = (read_fd); (__builtin_constant_p (__d) ? (0 <= __d && __d < 1024 ? (__d / (8 * (int) sizeof (__fd_mask))) : __fdelt_warn (__d)) : __fdelt_chk (__d)); })] & ((__fd_mask) 1 << ((read_fd) % (8 * (int) sizeof (__fd_mask))))) != 0))
4723	{
4724	n = 1;
4725	if (m_read_file.Read(&ch, n).Success() && n == 1)
4726	{
4727	if (m_write_file.Write(&ch, n).Fail() \|\| n != 1)
4728	SetIsDone(true);
4729	}
4730	else
4731	SetIsDone(true);
4732	}
4733	if (FD_ISSET (pipe_read_fd, &read_fdset)((((&read_fdset)->fds_bits)[__extension__ ({ long int __d = (pipe_read_fd); (__builtin_constant_p (__d) ? (0 <= __d && __d < 1024 ? (__d / (8 * (int) sizeof (__fd_mask ))) : __fdelt_warn (__d)) : __fdelt_chk (__d)); })] & ((__fd_mask ) 1 << ((pipe_read_fd) % (8 * (int) sizeof (__fd_mask)) ))) != 0))
4734	{
4735	// Consume the interrupt byte
4736	if (m_pipe.Read (&ch, 1) == 1)
4737	{
4738	switch (ch)
4739	{
4740	case 'q':
4741	SetIsDone(true);
4742	break;
4743	case 'i':
4744	if (StateIsRunningState(m_process->GetState()))
4745	m_process->Halt();
4746	break;
4747	}
4748	}
4749	}
4750	}
4751	}
4752	#endif
4753	terminal_state.Restore();
4754
4755	}
4756	else
4757	SetIsDone(true);
4758	}
4759	else
4760	SetIsDone(true);
4761	}
4762
4763	// Hide any characters that have been displayed so far so async
4764	// output can be displayed. Refresh() will be called after the
4765	// output has been displayed.
4766	virtual void
4767	Hide ()
4768	{
4769
4770	}
4771	// Called when the async output has been received in order to update
4772	// the input reader (refresh the prompt and redisplay any current
4773	// line(s) that are being edited
4774	virtual void
4775	Refresh ()
4776	{
4777
4778	}
4779
4780	virtual void
4781	Cancel ()
4782	{
4783	char ch = 'q'; // Send 'q' for quit
4784	m_pipe.Write (&ch, 1);
4785	}
4786
4787	virtual bool
4788	Interrupt ()
4789	{
4790	// Do only things that are safe to do in an interrupt context (like in
4791	// a SIGINT handler), like write 1 byte to a file descriptor. This will
4792	// interrupt the IOHandlerProcessSTDIO::Run() and we can look at the byte
4793	// that was written to the pipe and then call m_process->Halt() from a
4794	// much safer location in code.
4795	if (m_active)
4796	{
4797	char ch = 'i'; // Send 'i' for interrupt
4798	return m_pipe.Write (&ch, 1) == 1;
4799	}
4800	else
4801	{
4802	// This IOHandler might be pushed on the stack, but not being run currently
4803	// so do the right thing if we aren't actively watching for STDIN by sending
4804	// the interrupt to the process. Otherwise the write to the pipe above would
4805	// do nothing. This can happen when the command interpreter is running and
4806	// gets a "expression ...". It will be on the IOHandler thread and sending
4807	// the input is complete to the delegate which will cause the expression to
4808	// run, which will push the process IO handler, but not run it.
4809
4810	if (StateIsRunningState(m_process->GetState()))
4811	{
4812	m_process->SendAsyncInterrupt();
4813	return true;
4814	}
4815	}
4816	return false;
4817	}
4818
4819	virtual void
4820	GotEOF()
4821	{
4822
4823	}
4824
4825	protected:
4826	Process *m_process;
4827	File m_read_file; // Read from this file (usually actual STDIN for LLDB
4828	File m_write_file; // Write to this file (usually the master pty for getting io to debuggee)
4829	Pipe m_pipe;
4830	};
4831
4832	void
4833	Process::SetSTDIOFileDescriptor (int fd)
4834	{
4835	// First set up the Read Thread for reading/handling process I/O
4836
4837	std::unique_ptr<ConnectionFileDescriptor> conn_ap (new ConnectionFileDescriptor (fd, true));
4838
4839	if (conn_ap.get())
4840	{
4841	m_stdio_communication.SetConnection (conn_ap.release());
4842	if (m_stdio_communication.IsConnected())
4843	{
4844	m_stdio_communication.SetReadThreadBytesReceivedCallback (STDIOReadThreadBytesReceived, this);
4845	m_stdio_communication.StartReadThread();
4846
4847	// Now read thread is set up, set up input reader.
4848
4849	if (!m_process_input_reader.get())
4850	m_process_input_reader.reset (new IOHandlerProcessSTDIO (this, fd));
4851	}
4852	}
4853	}
4854
4855	bool
4856	Process::ProcessIOHandlerIsActive ()
4857	{
4858	IOHandlerSP io_handler_sp (m_process_input_reader);
4859	if (io_handler_sp)
4860	return m_target.GetDebugger().IsTopIOHandler (io_handler_sp);
4861	return false;
4862	}
4863	bool
4864	Process::PushProcessIOHandler ()
4865	{
4866	IOHandlerSP io_handler_sp (m_process_input_reader);
4867	if (io_handler_sp)
4868	{
4869	io_handler_sp->SetIsDone(false);
4870	m_target.GetDebugger().PushIOHandler (io_handler_sp);
4871	return true;
4872	}
4873	return false;
4874	}
4875
4876	bool
4877	Process::PopProcessIOHandler ()
4878	{
4879	IOHandlerSP io_handler_sp (m_process_input_reader);
4880	if (io_handler_sp)
4881	return m_target.GetDebugger().PopIOHandler (io_handler_sp);
4882	return false;
4883	}
4884
4885	// The process needs to know about installed plug-ins
4886	void
4887	Process::SettingsInitialize ()
4888	{
4889	Thread::SettingsInitialize ();
4890	}
4891
4892	void
4893	Process::SettingsTerminate ()
4894	{
4895	Thread::SettingsTerminate ();
4896	}
4897
4898	ExpressionResults
4899	Process::RunThreadPlan (ExecutionContext &exe_ctx,
4900	lldb::ThreadPlanSP &thread_plan_sp,
4901	const EvaluateExpressionOptions &options,
4902	Stream &errors)
4903	{
4904	ExpressionResults return_value = eExpressionSetupError;
4905
4906	if (thread_plan_sp.get() == NULL__null)
4907	{
4908	errors.Printf("RunThreadPlan called with empty thread plan.");
4909	return eExpressionSetupError;
4910	}
4911
4912	if (!thread_plan_sp->ValidatePlan(NULL__null))
4913	{
4914	errors.Printf ("RunThreadPlan called with an invalid thread plan.");
4915	return eExpressionSetupError;
4916	}
4917
4918	if (exe_ctx.GetProcessPtr() != this)
4919	{
4920	errors.Printf("RunThreadPlan called on wrong process.");
4921	return eExpressionSetupError;
4922	}
4923
4924	Thread *thread = exe_ctx.GetThreadPtr();
4925	if (thread == NULL__null)
4926	{
4927	errors.Printf("RunThreadPlan called with invalid thread.");
4928	return eExpressionSetupError;
4929	}
4930
4931	// We rely on the thread plan we are running returning "PlanCompleted" if when it successfully completes.
4932	// For that to be true the plan can't be private - since private plans suppress themselves in the
4933	// GetCompletedPlan call.
4934
4935	bool orig_plan_private = thread_plan_sp->GetPrivate();
4936	thread_plan_sp->SetPrivate(false);
4937
4938	if (m_private_state.GetValue() != eStateStopped)
4939	{
4940	errors.Printf ("RunThreadPlan called while the private state was not stopped.");
4941	return eExpressionSetupError;
4942	}
4943
4944	// Save the thread & frame from the exe_ctx for restoration after we run
4945	const uint32_t thread_idx_id = thread->GetIndexID();
4946	StackFrameSP selected_frame_sp = thread->GetSelectedFrame();
4947	if (!selected_frame_sp)
4948	{
4949	thread->SetSelectedFrame(0);
4950	selected_frame_sp = thread->GetSelectedFrame();
4951	if (!selected_frame_sp)
4952	{
4953	errors.Printf("RunThreadPlan called without a selected frame on thread %d", thread_idx_id);
4954	return eExpressionSetupError;
4955	}
4956	}
4957
4958	StackID ctx_frame_id = selected_frame_sp->GetStackID();
4959
4960	// N.B. Running the target may unset the currently selected thread and frame. We don't want to do that either,
4961	// so we should arrange to reset them as well.
4962
4963	lldb::ThreadSP selected_thread_sp = GetThreadList().GetSelectedThread();
4964
4965	uint32_t selected_tid;
4966	StackID selected_stack_id;
4967	if (selected_thread_sp)
4968	{
4969	selected_tid = selected_thread_sp->GetIndexID();
4970	selected_stack_id = selected_thread_sp->GetSelectedFrame()->GetStackID();
4971	}
4972	else
4973	{
4974	selected_tid = LLDB_INVALID_THREAD_ID0;
4975	}
4976
4977	HostThread backup_private_state_thread;
4978	lldb::StateType old_state;
4979	lldb::ThreadPlanSP stopper_base_plan_sp;
4980
4981	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_STEP(1u << 7) \| LIBLLDB_LOG_PROCESS(1u << 1)));
4982	if (m_private_state_thread.EqualsThread(Host::GetCurrentThread()))
4983	{
4984	// Yikes, we are running on the private state thread! So we can't wait for public events on this thread, since
4985	// we are the thread that is generating public events.
4986	// The simplest thing to do is to spin up a temporary thread to handle private state thread events while
4987	// we are fielding public events here.
4988	if (log)
4989	log->Printf ("Running thread plan on private state thread, spinning up another state thread to handle the events.");
4990
4991	backup_private_state_thread = m_private_state_thread;
4992
4993	// One other bit of business: we want to run just this thread plan and anything it pushes, and then stop,
4994	// returning control here.
4995	// But in the normal course of things, the plan above us on the stack would be given a shot at the stop
4996	// event before deciding to stop, and we don't want that. So we insert a "stopper" base plan on the stack
4997	// before the plan we want to run. Since base plans always stop and return control to the user, that will
4998	// do just what we want.
4999	stopper_base_plan_sp.reset(new ThreadPlanBase (*thread));
5000	thread->QueueThreadPlan (stopper_base_plan_sp, false);
5001	// Have to make sure our public state is stopped, since otherwise the reporting logic below doesn't work correctly.
5002	old_state = m_public_state.GetValue();
5003	m_public_state.SetValueNoLock(eStateStopped);
5004
5005	// Now spin up the private state thread:
5006	StartPrivateStateThread(true);
5007	}
5008
5009	thread->QueueThreadPlan(thread_plan_sp, false); // This used to pass "true" does that make sense?
5010
5011	if (options.GetDebug())
5012	{
5013	// In this case, we aren't actually going to run, we just want to stop right away.
5014	// Flush this thread so we will refetch the stacks and show the correct backtrace.
5015	// FIXME: To make this prettier we should invent some stop reason for this, but that
5016	// is only cosmetic, and this functionality is only of use to lldb developers who can
5017	// live with not pretty...
5018	thread->Flush();
5019	return eExpressionStoppedForDebug;
5020	}
5021
5022	Listener listener("lldb.process.listener.run-thread-plan");
5023
5024	lldb::EventSP event_to_broadcast_sp;
5025
5026	{
5027	// This process event hijacker Hijacks the Public events and its destructor makes sure that the process events get
5028	// restored on exit to the function.
5029	//
5030	// If the event needs to propagate beyond the hijacker (e.g., the process exits during execution), then the event
5031	// is put into event_to_broadcast_sp for rebroadcasting.
5032
5033	ProcessEventHijacker run_thread_plan_hijacker (*this, &listener);
5034
5035	if (log)
5036	{
5037	StreamString s;
5038	thread_plan_sp->GetDescription(&s, lldb::eDescriptionLevelVerbose);
5039	log->Printf ("Process::RunThreadPlan(): Resuming thread %u - 0x%4.4" PRIx64"l" "x" " to run thread plan \"%s\".",
5040	thread->GetIndexID(),
5041	thread->GetID(),
5042	s.GetData());
5043	}
5044
5045	bool got_event;
5046	lldb::EventSP event_sp;
5047	lldb::StateType stop_state = lldb::eStateInvalid;
5048
5049	TimeValue* timeout_ptr = NULL__null;
5050	TimeValue real_timeout;
5051
5052	bool before_first_timeout = true; // This is set to false the first time that we have to halt the target.
5053	bool do_resume = true;
5054	bool handle_running_event = true;
5055	const uint64_t default_one_thread_timeout_usec = 250000;
5056
5057	// This is just for accounting:
5058	uint32_t num_resumes = 0;
5059
5060	uint32_t timeout_usec = options.GetTimeoutUsec();
5061	uint32_t one_thread_timeout_usec;
5062	uint32_t all_threads_timeout_usec = 0;
5063
5064	// If we are going to run all threads the whole time, or if we are only going to run one thread,
5065	// then we don't need the first timeout. So we set the final timeout, and pretend we are after the
5066	// first timeout already.
5067
5068	if (!options.GetStopOthers() \|\| !options.GetTryAllThreads())
5069	{
5070	before_first_timeout = false;
5071	one_thread_timeout_usec = 0;
5072	all_threads_timeout_usec = timeout_usec;
5073	}
5074	else
5075	{
5076	uint32_t option_one_thread_timeout = options.GetOneThreadTimeoutUsec();
5077
5078	// If the overall wait is forever, then we only need to set the one thread timeout:
5079	if (timeout_usec == 0)
5080	{
5081	if (option_one_thread_timeout != 0)
5082	one_thread_timeout_usec = option_one_thread_timeout;
5083	else
5084	one_thread_timeout_usec = default_one_thread_timeout_usec;
5085	}
5086	else
5087	{
5088	// Otherwise, if the one thread timeout is set, make sure it isn't longer than the overall timeout,
5089	// and use it, otherwise use half the total timeout, bounded by the default_one_thread_timeout_usec.
5090	uint64_t computed_one_thread_timeout;
5091	if (option_one_thread_timeout != 0)
5092	{
5093	if (timeout_usec < option_one_thread_timeout)
5094	{
5095	errors.Printf("RunThreadPlan called without one thread timeout greater than total timeout");
5096	return eExpressionSetupError;
5097	}
5098	computed_one_thread_timeout = option_one_thread_timeout;
5099	}
5100	else
5101	{
5102	computed_one_thread_timeout = timeout_usec / 2;
5103	if (computed_one_thread_timeout > default_one_thread_timeout_usec)
5104	computed_one_thread_timeout = default_one_thread_timeout_usec;
5105	}
5106	one_thread_timeout_usec = computed_one_thread_timeout;
5107	all_threads_timeout_usec = timeout_usec - one_thread_timeout_usec;
5108
5109	}
5110	}
5111
5112	if (log)
5113	log->Printf ("Stop others: %u, try all: %u, before_first: %u, one thread: %" PRIu32"u" " - all threads: %" PRIu32"u" ".\n",
5114	options.GetStopOthers(),
5115	options.GetTryAllThreads(),
5116	before_first_timeout,
5117	one_thread_timeout_usec,
5118	all_threads_timeout_usec);
5119
5120	// This isn't going to work if there are unfetched events on the queue.
5121	// Are there cases where we might want to run the remaining events here, and then try to
5122	// call the function? That's probably being too tricky for our own good.
5123
5124	Event *other_events = listener.PeekAtNextEvent();
5125	if (other_events != NULL__null)
5126	{
5127	errors.Printf("Calling RunThreadPlan with pending events on the queue.");
5128	return eExpressionSetupError;
5129	}
5130
5131	// We also need to make sure that the next event is delivered. We might be calling a function as part of
5132	// a thread plan, in which case the last delivered event could be the running event, and we don't want
5133	// event coalescing to cause us to lose OUR running event...
5134	ForceNextEventDelivery();
5135
5136	// This while loop must exit out the bottom, there's cleanup that we need to do when we are done.
5137	// So don't call return anywhere within it.
5138
5139	#ifdef LLDB_RUN_THREAD_HALT_WITH_EVENT
5140	// It's pretty much impossible to write test cases for things like:
5141	// One thread timeout expires, I go to halt, but the process already stopped
5142	// on the function call stop breakpoint. Turning on this define will make us not
5143	// fetch the first event till after the halt. So if you run a quick function, it will have
5144	// completed, and the completion event will be waiting, when you interrupt for halt.
5145	// The expression evaluation should still succeed.
5146	bool miss_first_event = true;
5147	#endif
5148	TimeValue one_thread_timeout;
5149	TimeValue final_timeout;
5150
5151
5152	while (1)
5153	{
5154	// We usually want to resume the process if we get to the top of the loop.
5155	// The only exception is if we get two running events with no intervening
5156	// stop, which can happen, we will just wait for then next stop event.
5157	if (log)
5158	log->Printf ("Top of while loop: do_resume: %i handle_running_event: %i before_first_timeout: %i.",
5159	do_resume,
5160	handle_running_event,
5161	before_first_timeout);
5162
5163	if (do_resume \|\| handle_running_event)
5164	{
5165	// Do the initial resume and wait for the running event before going further.
5166
5167	if (do_resume)
5168	{
5169	num_resumes++;
5170	Error resume_error = PrivateResume ();
5171	if (!resume_error.Success())
5172	{
5173	errors.Printf("Error resuming inferior the %d time: \"%s\".\n",
5174	num_resumes,
5175	resume_error.AsCString());
5176	return_value = eExpressionSetupError;
5177	break;
5178	}
5179	}
5180
5181	TimeValue resume_timeout = TimeValue::Now();
5182	resume_timeout.OffsetWithMicroSeconds(500000);
5183
5184	got_event = listener.WaitForEvent(&resume_timeout, event_sp);
5185	if (!got_event)
5186	{
5187	if (log)
5188	log->Printf ("Process::RunThreadPlan(): didn't get any event after resume %d, exiting.",
5189	num_resumes);
5190
5191	errors.Printf("Didn't get any event after resume %d, exiting.", num_resumes);
5192	return_value = eExpressionSetupError;
5193	break;
5194	}
5195
5196	stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
5197
5198	if (stop_state != eStateRunning)
5199	{
5200	bool restarted = false;
5201
5202	if (stop_state == eStateStopped)
5203	{
5204	restarted = Process::ProcessEventData::GetRestartedFromEvent(event_sp.get());
5205	if (log)
5206	log->Printf("Process::RunThreadPlan(): didn't get running event after "
5207	"resume %d, got %s instead (restarted: %i, do_resume: %i, handle_running_event: %i).",
5208	num_resumes,
5209	StateAsCString(stop_state),
5210	restarted,
5211	do_resume,
5212	handle_running_event);
5213	}
5214
5215	if (restarted)
5216	{
5217	// This is probably an overabundance of caution, I don't think I should ever get a stopped & restarted
5218	// event here. But if I do, the best thing is to Halt and then get out of here.
5219	Halt();
5220	}
5221
5222	errors.Printf("Didn't get running event after initial resume, got %s instead.",
5223	StateAsCString(stop_state));
5224	return_value = eExpressionSetupError;
5225	break;
5226	}
5227
5228	if (log)
5229	log->PutCString ("Process::RunThreadPlan(): resuming succeeded.");
5230	// We need to call the function synchronously, so spin waiting for it to return.
5231	// If we get interrupted while executing, we're going to lose our context, and
5232	// won't be able to gather the result at this point.
5233	// We set the timeout AFTER the resume, since the resume takes some time and we
5234	// don't want to charge that to the timeout.
5235	}
5236	else
5237	{
5238	if (log)
5239	log->PutCString ("Process::RunThreadPlan(): waiting for next event.");
5240	}
5241
5242	if (before_first_timeout)
5243	{
5244	if (options.GetTryAllThreads())
5245	{
5246	one_thread_timeout = TimeValue::Now();
5247	one_thread_timeout.OffsetWithMicroSeconds(one_thread_timeout_usec);
5248	timeout_ptr = &one_thread_timeout;
5249	}
5250	else
5251	{
5252	if (timeout_usec == 0)
5253	timeout_ptr = NULL__null;
5254	else
5255	{
5256	final_timeout = TimeValue::Now();
5257	final_timeout.OffsetWithMicroSeconds (timeout_usec);
5258	timeout_ptr = &final_timeout;
5259	}
5260	}
5261	}
5262	else
5263	{
5264	if (timeout_usec == 0)
5265	timeout_ptr = NULL__null;
5266	else
5267	{
5268	final_timeout = TimeValue::Now();
5269	final_timeout.OffsetWithMicroSeconds (all_threads_timeout_usec);
5270	timeout_ptr = &final_timeout;
5271	}
5272	}
5273
5274	do_resume = true;
5275	handle_running_event = true;
5276
5277	// Now wait for the process to stop again:
5278	event_sp.reset();
5279
5280	if (log)
5281	{
5282	if (timeout_ptr)
5283	{
5284	log->Printf ("Process::RunThreadPlan(): about to wait - now is %" PRIu64"l" "u" " - endpoint is %" PRIu64"l" "u",
5285	TimeValue::Now().GetAsMicroSecondsSinceJan1_1970(),
5286	timeout_ptr->GetAsMicroSecondsSinceJan1_1970());
5287	}
5288	else
5289	{
5290	log->Printf ("Process::RunThreadPlan(): about to wait forever.");
5291	}
5292	}
5293
5294	#ifdef LLDB_RUN_THREAD_HALT_WITH_EVENT
5295	// See comment above...
5296	if (miss_first_event)
5297	{
5298	usleep(1000);
5299	miss_first_event = false;
5300	got_event = false;
5301	}
5302	else
5303	#endif
5304	got_event = listener.WaitForEvent (timeout_ptr, event_sp);
5305
5306	if (got_event)
5307	{
5308	if (event_sp.get())
5309	{
5310	bool keep_going = false;
5311	if (event_sp->GetType() == eBroadcastBitInterrupt)
5312	{
5313	Halt();
5314	return_value = eExpressionInterrupted;
5315	errors.Printf ("Execution halted by user interrupt.");
5316	if (log)
5317	log->Printf ("Process::RunThreadPlan(): Got interrupted by eBroadcastBitInterrupted, exiting.");
5318	break;
5319	}
5320	else
5321	{
5322	stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
5323	if (log)
5324	log->Printf("Process::RunThreadPlan(): in while loop, got event: %s.", StateAsCString(stop_state));
5325
5326	switch (stop_state)
5327	{
5328	case lldb::eStateStopped:
5329	{
5330	// We stopped, figure out what we are going to do now.
5331	ThreadSP thread_sp = GetThreadList().FindThreadByIndexID (thread_idx_id);
5332	if (!thread_sp)
5333	{
5334	// Ooh, our thread has vanished. Unlikely that this was successful execution...
5335	if (log)
5336	log->Printf ("Process::RunThreadPlan(): execution completed but our thread (index-id=%u) has vanished.", thread_idx_id);
5337	return_value = eExpressionInterrupted;
5338	}
5339	else
5340	{
5341	// If we were restarted, we just need to go back up to fetch another event.
5342	if (Process::ProcessEventData::GetRestartedFromEvent(event_sp.get()))
5343	{
5344	if (log)
5345	{
5346	log->Printf ("Process::RunThreadPlan(): Got a stop and restart, so we'll continue waiting.");
5347	}
5348	keep_going = true;
5349	do_resume = false;
5350	handle_running_event = true;
5351
5352	}
5353	else
5354	{
5355	StopInfoSP stop_info_sp (thread_sp->GetStopInfo ());
5356	StopReason stop_reason = eStopReasonInvalid;
5357	if (stop_info_sp)
5358	stop_reason = stop_info_sp->GetStopReason();
5359
5360	// FIXME: We only check if the stop reason is plan complete, should we make sure that
5361	// it is OUR plan that is complete?
5362	if (stop_reason == eStopReasonPlanComplete)
5363	{
5364	if (log)
5365	log->PutCString ("Process::RunThreadPlan(): execution completed successfully.");
5366	// Now mark this plan as private so it doesn't get reported as the stop reason
5367	// after this point.
5368	if (thread_plan_sp)
5369	thread_plan_sp->SetPrivate (orig_plan_private);
5370	return_value = eExpressionCompleted;
5371	}
5372	else
5373	{
5374	// Something restarted the target, so just wait for it to stop for real.
5375	if (stop_reason == eStopReasonBreakpoint)
5376	{
5377	if (log)
5378	log->Printf ("Process::RunThreadPlan() stopped for breakpoint: %s.", stop_info_sp->GetDescription());
5379	return_value = eExpressionHitBreakpoint;
5380	if (!options.DoesIgnoreBreakpoints())
5381	{
5382	event_to_broadcast_sp = event_sp;
5383	}
5384	}
5385	else
5386	{
5387	if (log)
5388	log->PutCString ("Process::RunThreadPlan(): thread plan didn't successfully complete.");
5389	if (!options.DoesUnwindOnError())
5390	event_to_broadcast_sp = event_sp;
5391	return_value = eExpressionInterrupted;
5392	}
5393	}
5394	}
5395	}
5396	}
5397	break;
5398
5399	case lldb::eStateRunning:
5400	// This shouldn't really happen, but sometimes we do get two running events without an
5401	// intervening stop, and in that case we should just go back to waiting for the stop.
5402	do_resume = false;
5403	keep_going = true;
5404	handle_running_event = false;
5405	break;
5406
5407	default:
5408	if (log)
5409	log->Printf("Process::RunThreadPlan(): execution stopped with unexpected state: %s.", StateAsCString(stop_state));
5410
5411	if (stop_state == eStateExited)
5412	event_to_broadcast_sp = event_sp;
5413
5414	errors.Printf ("Execution stopped with unexpected state.\n");
5415	return_value = eExpressionInterrupted;
5416	break;
5417	}
5418	}
5419
5420	if (keep_going)
5421	continue;
5422	else
5423	break;
5424	}
5425	else
5426	{
5427	if (log)
5428	log->PutCString ("Process::RunThreadPlan(): got_event was true, but the event pointer was null. How odd...");
5429	return_value = eExpressionInterrupted;
5430	break;
5431	}
5432	}
5433	else
5434	{
5435	// If we didn't get an event that means we've timed out...
5436	// We will interrupt the process here. Depending on what we were asked to do we will
5437	// either exit, or try with all threads running for the same timeout.
5438
5439	if (log) {
5440	if (options.GetTryAllThreads())
5441	{
5442	if (before_first_timeout)
5443	{
5444	if (timeout_usec != 0)
5445	{
5446	log->Printf ("Process::RunThreadPlan(): Running function with one thread timeout timed out, "
5447	"running for %" PRIu32"u" " usec with all threads enabled.",
5448	all_threads_timeout_usec);
5449	}
5450	else
5451	{
5452	log->Printf ("Process::RunThreadPlan(): Running function with one thread timeout timed out, "
5453	"running forever with all threads enabled.");
5454	}
5455	}
5456	else
5457	log->Printf ("Process::RunThreadPlan(): Restarting function with all threads enabled "
5458	"and timeout: %u timed out, abandoning execution.",
5459	timeout_usec);
5460	}
5461	else
5462	log->Printf ("Process::RunThreadPlan(): Running function with timeout: %u timed out, "
5463	"abandoning execution.",
5464	timeout_usec);
5465	}
5466
5467	// It is possible that between the time we issued the Halt, and we get around to calling Halt the target
5468	// could have stopped. That's fine, Halt will figure that out and send the appropriate Stopped event.
5469	// BUT it is also possible that we stopped & restarted (e.g. hit a signal with "stop" set to false.) In
5470	// that case, we'll get the stopped & restarted event, and we should go back to waiting for the Halt's
5471	// stopped event. That's what this while loop does.
5472
5473	bool back_to_top = true;
5474	uint32_t try_halt_again = 0;
5475	bool do_halt = true;
5476	const uint32_t num_retries = 5;
5477	while (try_halt_again < num_retries)
5478	{
5479	Error halt_error;
5480	if (do_halt)
5481	{
5482	if (log)
5483	log->Printf ("Process::RunThreadPlan(): Running Halt.");
5484	halt_error = Halt();
5485	}
5486	if (halt_error.Success())
5487	{
5488	if (log)
5489	log->PutCString ("Process::RunThreadPlan(): Halt succeeded.");
5490
5491	real_timeout = TimeValue::Now();
5492	real_timeout.OffsetWithMicroSeconds(500000);
5493
5494	got_event = listener.WaitForEvent(&real_timeout, event_sp);
5495
5496	if (got_event)
5497	{
5498	stop_state = Process::ProcessEventData::GetStateFromEvent(event_sp.get());
5499	if (log)
5500	{
5501	log->Printf ("Process::RunThreadPlan(): Stopped with event: %s", StateAsCString(stop_state));
5502	if (stop_state == lldb::eStateStopped
5503	&& Process::ProcessEventData::GetInterruptedFromEvent(event_sp.get()))
5504	log->PutCString (" Event was the Halt interruption event.");
5505	}
5506
5507	if (stop_state == lldb::eStateStopped)
5508	{
5509	// Between the time we initiated the Halt and the time we delivered it, the process could have
5510	// already finished its job. Check that here:
5511
5512	if (thread->IsThreadPlanDone (thread_plan_sp.get()))
5513	{
5514	if (log)
5515	log->PutCString ("Process::RunThreadPlan(): Even though we timed out, the call plan was done. "
5516	"Exiting wait loop.");
5517	return_value = eExpressionCompleted;
5518	back_to_top = false;
5519	break;
5520	}
5521
5522	if (Process::ProcessEventData::GetRestartedFromEvent(event_sp.get()))
5523	{
5524	if (log)
5525	log->PutCString ("Process::RunThreadPlan(): Went to halt but got a restarted event, there must be an un-restarted stopped event so try again... "
5526	"Exiting wait loop.");
5527	try_halt_again++;
5528	do_halt = false;
5529	continue;
5530	}
5531
5532	if (!options.GetTryAllThreads())
5533	{
5534	if (log)
5535	log->PutCString ("Process::RunThreadPlan(): try_all_threads was false, we stopped so now we're quitting.");
5536	return_value = eExpressionInterrupted;
5537	back_to_top = false;
5538	break;
5539	}
5540
5541	if (before_first_timeout)
5542	{
5543	// Set all the other threads to run, and return to the top of the loop, which will continue;
5544	before_first_timeout = false;
5545	thread_plan_sp->SetStopOthers (false);
5546	if (log)
5547	log->PutCString ("Process::RunThreadPlan(): about to resume.");
5548
5549	back_to_top = true;
5550	break;
5551	}
5552	else
5553	{
5554	// Running all threads failed, so return Interrupted.
5555	if (log)
5556	log->PutCString("Process::RunThreadPlan(): running all threads timed out.");
5557	return_value = eExpressionInterrupted;
5558	back_to_top = false;
5559	break;
5560	}
5561	}
5562	}
5563	else
5564	{ if (log)
5565	log->PutCString("Process::RunThreadPlan(): halt said it succeeded, but I got no event. "
5566	"I'm getting out of here passing Interrupted.");
5567	return_value = eExpressionInterrupted;
5568	back_to_top = false;
5569	break;
5570	}
5571	}
5572	else
5573	{
5574	try_halt_again++;
5575	continue;
5576	}
5577	}
5578
5579	if (!back_to_top \|\| try_halt_again > num_retries)
5580	break;
5581	else
5582	continue;
5583	}
5584	} // END WAIT LOOP
5585
5586	// If we had to start up a temporary private state thread to run this thread plan, shut it down now.
5587	if (backup_private_state_thread.IsJoinable())
5588	{
5589	StopPrivateStateThread();
5590	Error error;
5591	m_private_state_thread = backup_private_state_thread;
5592	if (stopper_base_plan_sp)
5593	{
5594	thread->DiscardThreadPlansUpToPlan(stopper_base_plan_sp);
5595	}
5596	m_public_state.SetValueNoLock(old_state);
5597
5598	}
5599
5600	// Restore the thread state if we are going to discard the plan execution. There are three cases where this
5601	// could happen:
5602	// 1) The execution successfully completed
5603	// 2) We hit a breakpoint, and ignore_breakpoints was true
5604	// 3) We got some other error, and discard_on_error was true
5605	bool should_unwind = (return_value == eExpressionInterrupted && options.DoesUnwindOnError())
5606	\|\| (return_value == eExpressionHitBreakpoint && options.DoesIgnoreBreakpoints());
5607
5608	if (return_value == eExpressionCompleted
5609	\|\| should_unwind)
5610	{
5611	thread_plan_sp->RestoreThreadState();
5612	}
5613
5614	// Now do some processing on the results of the run:
5615	if (return_value == eExpressionInterrupted \|\| return_value == eExpressionHitBreakpoint)
5616	{
5617	if (log)
5618	{
5619	StreamString s;
5620	if (event_sp)
5621	event_sp->Dump (&s);
5622	else
5623	{
5624	log->PutCString ("Process::RunThreadPlan(): Stop event that interrupted us is NULL.");
5625	}
5626
5627	StreamString ts;
5628
5629	const char *event_explanation = NULL__null;
5630
5631	do
5632	{
5633	if (!event_sp)
5634	{
5635	event_explanation = "<no event>";
5636	break;
5637	}
5638	else if (event_sp->GetType() == eBroadcastBitInterrupt)
5639	{
5640	event_explanation = "<user interrupt>";
5641	break;
5642	}
5643	else
5644	{
5645	const Process::ProcessEventData *event_data = Process::ProcessEventData::GetEventDataFromEvent (event_sp.get());
5646
5647	if (!event_data)
5648	{
5649	event_explanation = "<no event data>";
5650	break;
5651	}
5652
5653	Process *process = event_data->GetProcessSP().get();
5654
5655	if (!process)
5656	{
5657	event_explanation = "<no process>";
5658	break;
5659	}
5660
5661	ThreadList &thread_list = process->GetThreadList();
5662
5663	uint32_t num_threads = thread_list.GetSize();
5664	uint32_t thread_index;
5665
5666	ts.Printf("<%u threads> ", num_threads);
5667
5668	for (thread_index = 0;
5669	thread_index < num_threads;
5670	++thread_index)
5671	{
5672	Thread *thread = thread_list.GetThreadAtIndex(thread_index).get();
5673
5674	if (!thread)
5675	{
5676	ts.Printf("<?> ");
5677	continue;
5678	}
5679
5680	ts.Printf("<0x%4.4" PRIx64"l" "x" " ", thread->GetID());
5681	RegisterContext *register_context = thread->GetRegisterContext().get();
5682
5683	if (register_context)
5684	ts.Printf("[ip 0x%" PRIx64"l" "x" "] ", register_context->GetPC());
5685	else
5686	ts.Printf("[ip unknown] ");
5687
5688	lldb::StopInfoSP stop_info_sp = thread->GetStopInfo();
5689	if (stop_info_sp)
5690	{
5691	const char *stop_desc = stop_info_sp->GetDescription();
5692	if (stop_desc)
5693	ts.PutCString (stop_desc);
5694	}
5695	ts.Printf(">");
5696	}
5697
5698	event_explanation = ts.GetData();
5699	}
5700	} while (0);
5701
5702	if (event_explanation)
5703	log->Printf("Process::RunThreadPlan(): execution interrupted: %s %s", s.GetData(), event_explanation);
5704	else
5705	log->Printf("Process::RunThreadPlan(): execution interrupted: %s", s.GetData());
5706	}
5707
5708	if (should_unwind)
5709	{
5710	if (log)
5711	log->Printf ("Process::RunThreadPlan: ExecutionInterrupted - discarding thread plans up to %p.",
5712	static_cast<void*>(thread_plan_sp.get()));
5713	thread->DiscardThreadPlansUpToPlan (thread_plan_sp);
5714	thread_plan_sp->SetPrivate (orig_plan_private);
5715	}
5716	else
5717	{
5718	if (log)
5719	log->Printf ("Process::RunThreadPlan: ExecutionInterrupted - for plan: %p not discarding.",
5720	static_cast<void*>(thread_plan_sp.get()));
5721	}
5722	}
5723	else if (return_value == eExpressionSetupError)
5724	{
5725	if (log)
5726	log->PutCString("Process::RunThreadPlan(): execution set up error.");
5727
5728	if (options.DoesUnwindOnError())
5729	{
5730	thread->DiscardThreadPlansUpToPlan (thread_plan_sp);
5731	thread_plan_sp->SetPrivate (orig_plan_private);
5732	}
5733	}
5734	else
5735	{
5736	if (thread->IsThreadPlanDone (thread_plan_sp.get()))
5737	{
5738	if (log)
5739	log->PutCString("Process::RunThreadPlan(): thread plan is done");
5740	return_value = eExpressionCompleted;
5741	}
5742	else if (thread->WasThreadPlanDiscarded (thread_plan_sp.get()))
5743	{
5744	if (log)
5745	log->PutCString("Process::RunThreadPlan(): thread plan was discarded");
5746	return_value = eExpressionDiscarded;
5747	}
5748	else
5749	{
5750	if (log)
5751	log->PutCString("Process::RunThreadPlan(): thread plan stopped in mid course");
5752	if (options.DoesUnwindOnError() && thread_plan_sp)
5753	{
5754	if (log)
5755	log->PutCString("Process::RunThreadPlan(): discarding thread plan 'cause unwind_on_error is set.");
5756	thread->DiscardThreadPlansUpToPlan (thread_plan_sp);
5757	thread_plan_sp->SetPrivate (orig_plan_private);
5758	}
5759	}
5760	}
5761
5762	// Thread we ran the function in may have gone away because we ran the target
5763	// Check that it's still there, and if it is put it back in the context. Also restore the
5764	// frame in the context if it is still present.
5765	thread = GetThreadList().FindThreadByIndexID(thread_idx_id, true).get();
5766	if (thread)
5767	{
5768	exe_ctx.SetFrameSP (thread->GetFrameWithStackID (ctx_frame_id));
5769	}
5770
5771	// Also restore the current process'es selected frame & thread, since this function calling may
5772	// be done behind the user's back.
5773
5774	if (selected_tid != LLDB_INVALID_THREAD_ID0)
5775	{
5776	if (GetThreadList().SetSelectedThreadByIndexID (selected_tid) && selected_stack_id.IsValid())
5777	{
5778	// We were able to restore the selected thread, now restore the frame:
5779	Mutex::Locker lock(GetThreadList().GetMutex());
5780	StackFrameSP old_frame_sp = GetThreadList().GetSelectedThread()->GetFrameWithStackID(selected_stack_id);
5781	if (old_frame_sp)
5782	GetThreadList().GetSelectedThread()->SetSelectedFrame(old_frame_sp.get());
5783	}
5784	}
5785	}
5786
5787	// If the process exited during the run of the thread plan, notify everyone.
5788
5789	if (event_to_broadcast_sp)
5790	{
5791	if (log)
5792	log->PutCString("Process::RunThreadPlan(): rebroadcasting event.");
5793	BroadcastEvent(event_to_broadcast_sp);
5794	}
5795
5796	return return_value;
5797	}
5798
5799	const char *
5800	Process::ExecutionResultAsCString (ExpressionResults result)
5801	{
5802	const char *result_name;
5803
5804	switch (result)
5805	{
5806	case eExpressionCompleted:
5807	result_name = "eExpressionCompleted";
5808	break;
5809	case eExpressionDiscarded:
5810	result_name = "eExpressionDiscarded";
5811	break;
5812	case eExpressionInterrupted:
5813	result_name = "eExpressionInterrupted";
5814	break;
5815	case eExpressionHitBreakpoint:
5816	result_name = "eExpressionHitBreakpoint";
5817	break;
5818	case eExpressionSetupError:
5819	result_name = "eExpressionSetupError";
5820	break;
5821	case eExpressionParseError:
5822	result_name = "eExpressionParseError";
5823	break;
5824	case eExpressionResultUnavailable:
5825	result_name = "eExpressionResultUnavailable";
5826	break;
5827	case eExpressionTimedOut:
5828	result_name = "eExpressionTimedOut";
5829	break;
5830	case eExpressionStoppedForDebug:
5831	result_name = "eExpressionStoppedForDebug";
5832	break;
5833	}
5834	return result_name;
5835	}
5836
5837	void
5838	Process::GetStatus (Stream &strm)
5839	{
5840	const StateType state = GetState();
5841	if (StateIsStoppedState(state, false))
5842	{
5843	if (state == eStateExited)
5844	{
5845	int exit_status = GetExitStatus();
5846	const char *exit_description = GetExitDescription();
5847	strm.Printf ("Process %" PRIu64"l" "u" " exited with status = %i (0x%8.8x) %s\n",
5848	GetID(),
5849	exit_status,
5850	exit_status,
5851	exit_description ? exit_description : "");
5852	}
5853	else
5854	{
5855	if (state == eStateConnected)
5856	strm.Printf ("Connected to remote target.\n");
5857	else
5858	strm.Printf ("Process %" PRIu64"l" "u" " %s\n", GetID(), StateAsCString (state));
5859	}
5860	}
5861	else
5862	{
5863	strm.Printf ("Process %" PRIu64"l" "u" " is running.\n", GetID());
5864	}
5865	}
5866
5867	size_t
5868	Process::GetThreadStatus (Stream &strm,
5869	bool only_threads_with_stop_reason,
5870	uint32_t start_frame,
5871	uint32_t num_frames,
5872	uint32_t num_frames_with_source)
5873	{
5874	size_t num_thread_infos_dumped = 0;
5875
5876	// You can't hold the thread list lock while calling Thread::GetStatus. That very well might run code (e.g. if we need it
5877	// to get return values or arguments.) For that to work the process has to be able to acquire it. So instead copy the thread
5878	// ID's, and look them up one by one:
5879
5880	uint32_t num_threads;
5881	std::vector<uint32_t> thread_index_array;
5882	//Scope for thread list locker;
5883	{
5884	Mutex::Locker locker (GetThreadList().GetMutex());
5885	ThreadList &curr_thread_list = GetThreadList();
5886	num_threads = curr_thread_list.GetSize();
5887	uint32_t idx;
5888	thread_index_array.resize(num_threads);
5889	for (idx = 0; idx < num_threads; ++idx)
5890	thread_index_array[idx] = curr_thread_list.GetThreadAtIndex(idx)->GetID();
5891	}
5892
5893	for (uint32_t i = 0; i < num_threads; i++)
5894	{
5895	ThreadSP thread_sp(GetThreadList().FindThreadByID(thread_index_array[i]));
5896	if (thread_sp)
5897	{
5898	if (only_threads_with_stop_reason)
5899	{
5900	StopInfoSP stop_info_sp = thread_sp->GetStopInfo();
5901	if (stop_info_sp.get() == NULL__null \|\| !stop_info_sp->IsValid())
5902	continue;
5903	}
5904	thread_sp->GetStatus (strm,
5905	start_frame,
5906	num_frames,
5907	num_frames_with_source);
5908	++num_thread_infos_dumped;
5909	}
5910	else
5911	{
5912	Log *log(lldb_private::GetLogIfAnyCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
5913	if (log)
5914	log->Printf("Process::GetThreadStatus - thread 0x" PRIu64"l" "u" " vanished while running Thread::GetStatus.");
5915
5916	}
5917	}
5918	return num_thread_infos_dumped;
5919	}
5920
5921	void
5922	Process::AddInvalidMemoryRegion (const LoadRange &region)
5923	{
5924	m_memory_cache.AddInvalidRange(region.GetRangeBase(), region.GetByteSize());
5925	}
5926
5927	bool
5928	Process::RemoveInvalidMemoryRange (const LoadRange &region)
5929	{
5930	return m_memory_cache.RemoveInvalidRange(region.GetRangeBase(), region.GetByteSize());
5931	}
5932
5933	void
5934	Process::AddPreResumeAction (PreResumeActionCallback callback, void *baton)
5935	{
5936	m_pre_resume_actions.push_back(PreResumeCallbackAndBaton (callback, baton));
5937	}
5938
5939	bool
5940	Process::RunPreResumeActions ()
5941	{
5942	bool result = true;
5943	while (!m_pre_resume_actions.empty())
5944	{
5945	struct PreResumeCallbackAndBaton action = m_pre_resume_actions.back();
5946	m_pre_resume_actions.pop_back();
5947	bool this_result = action.callback (action.baton);
5948	if (result == true) result = this_result;
5949	}
5950	return result;
5951	}
5952
5953	void
5954	Process::ClearPreResumeActions ()
5955	{
5956	m_pre_resume_actions.clear();
5957	}
5958
5959	void
5960	Process::Flush ()
5961	{
5962	m_thread_list.Flush();
5963	m_extended_thread_list.Flush();
5964	m_extended_thread_stop_id = 0;
5965	m_queue_list.Clear();
5966	m_queue_list_stop_id = 0;
5967	}
5968
5969	void
5970	Process::DidExec ()
5971	{
5972	Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS(1u << 1)));
5973	if (log)
5974	log->Printf ("Process::%s()", __FUNCTION__);
5975
5976	Target &target = GetTarget();
5977	target.CleanupProcess ();
5978	target.ClearModules(false);
5979	m_dynamic_checkers_ap.reset();
5980	m_abi_sp.reset();
5981	m_system_runtime_ap.reset();
5982	m_os_ap.reset();
5983	m_dyld_ap.reset();
5984	m_jit_loaders_ap.reset();
5985	m_image_tokens.clear();
5986	m_allocated_memory_cache.Clear();
5987	m_language_runtimes.clear();
5988	m_instrumentation_runtimes.clear();
5989	m_thread_list.DiscardThreadPlans();
5990	m_memory_cache.Clear(true);
5991	DoDidExec();
5992	CompleteAttach ();
5993	// Flush the process (threads and all stack frames) after running CompleteAttach()
5994	// in case the dynamic loader loaded things in new locations.
5995	Flush();
5996
5997	// After we figure out what was loaded/unloaded in CompleteAttach,
5998	// we need to let the target know so it can do any cleanup it needs to.
5999	target.DidExec();
6000	}
6001
6002	addr_t
6003	Process::ResolveIndirectFunction(const Address *address, Error &error)
6004	{
6005	if (address == nullptr)
6006	{
6007	error.SetErrorString("Invalid address argument");
6008	return LLDB_INVALID_ADDRESS(18446744073709551615UL);
6009	}
6010
6011	addr_t function_addr = LLDB_INVALID_ADDRESS(18446744073709551615UL);
6012
6013	addr_t addr = address->GetLoadAddress(&GetTarget());
6014	std::map<addr_t,addr_t>::const_iterator iter = m_resolved_indirect_addresses.find(addr);
6015	if (iter != m_resolved_indirect_addresses.end())
6016	{
6017	function_addr = (*iter).second;
6018	}
6019	else
6020	{
6021	if (!InferiorCall(this, address, function_addr))
6022	{
6023	Symbol *symbol = address->CalculateSymbolContextSymbol();
6024	error.SetErrorStringWithFormat ("Unable to call resolver for indirect function %s",
6025	symbol ? symbol->GetName().AsCString() : "<UNKNOWN>");
6026	function_addr = LLDB_INVALID_ADDRESS(18446744073709551615UL);
6027	}
6028	else
6029	{
6030	m_resolved_indirect_addresses.insert(std::pair<addr_t, addr_t>(addr, function_addr));
6031	}
6032	}
6033	return function_addr;
6034	}
6035
6036	void
6037	Process::ModulesDidLoad (ModuleList &module_list)
6038	{
6039	SystemRuntime *sys_runtime = GetSystemRuntime();
6040	if (sys_runtime)
6041	{
6042	sys_runtime->ModulesDidLoad (module_list);
6043	}
6044
6045	GetJITLoaders().ModulesDidLoad (module_list);
6046
6047	// Give runtimes a chance to be created.
6048	InstrumentationRuntime::ModulesDidLoad(module_list, this, m_instrumentation_runtimes);
6049
6050	// Tell runtimes about new modules.
6051	for (auto pos = m_instrumentation_runtimes.begin(); pos != m_instrumentation_runtimes.end(); ++pos)
6052	{
6053	InstrumentationRuntimeSP runtime = pos->second;
6054	runtime->ModulesDidLoad(module_list);
6055	}
6056
6057	}
6058
6059	ThreadCollectionSP
6060	Process::GetHistoryThreads(lldb::addr_t addr)
6061	{
6062	ThreadCollectionSP threads;
6063
6064	const MemoryHistorySP &memory_history = MemoryHistory::FindPlugin(shared_from_this());
6065
6066	if (! memory_history.get()) {
6067	return threads;
6068	}
6069
6070	threads.reset(new ThreadCollection(memory_history->GetHistoryThreads(addr)));
6071
6072	return threads;
6073	}
6074
6075	InstrumentationRuntimeSP
6076	Process::GetInstrumentationRuntime(lldb::InstrumentationRuntimeType type)
6077	{
6078	InstrumentationRuntimeCollection::iterator pos;
6079	pos = m_instrumentation_runtimes.find (type);
6080	if (pos == m_instrumentation_runtimes.end())
6081	{
6082	return InstrumentationRuntimeSP();
6083	}
6084	else
6085	return (*pos).second;
6086	}