12 #include "clang/Config/config.h"
17 #include "llvm/Option/ArgList.h"
18 #include "llvm/Support/Path.h"
20 using namespace clang::driver;
21 using namespace clang::driver::toolchains;
22 using namespace clang::driver::tools;
23 using namespace clang;
24 using namespace llvm::opt;
30 const char *LinkingOutput)
const {
35 ArgStringList CmdArgs;
38 Args.ClaimAllArgs(options::OPT_g_Group);
40 Args.ClaimAllArgs(options::OPT_emit_llvm);
43 Args.ClaimAllArgs(options::OPT_w);
45 const char *Exec = Args.MakeArgString(ToolChain.
GetLinkerPath());
46 if (llvm::sys::path::stem(Exec).equals_lower(
"lld")) {
47 CmdArgs.push_back(
"-flavor");
48 CmdArgs.push_back(
"gnu");
50 CmdArgs.push_back(
"-z");
51 CmdArgs.push_back(
"rodynamic");
55 CmdArgs.push_back(Args.MakeArgString(
"--sysroot=" + D.
SysRoot));
57 if (!Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_r))
58 CmdArgs.push_back(
"-pie");
60 if (Args.hasArg(options::OPT_rdynamic))
61 CmdArgs.push_back(
"-export-dynamic");
63 if (Args.hasArg(options::OPT_s))
64 CmdArgs.push_back(
"-s");
66 if (Args.hasArg(options::OPT_r))
67 CmdArgs.push_back(
"-r");
69 CmdArgs.push_back(
"--build-id");
71 if (!Args.hasArg(options::OPT_static))
72 CmdArgs.push_back(
"--eh-frame-hdr");
74 if (Args.hasArg(options::OPT_static))
75 CmdArgs.push_back(
"-Bstatic");
76 else if (Args.hasArg(options::OPT_shared))
77 CmdArgs.push_back(
"-shared");
79 if (!Args.hasArg(options::OPT_static)) {
80 if (Args.hasArg(options::OPT_rdynamic))
81 CmdArgs.push_back(
"-export-dynamic");
83 if (!Args.hasArg(options::OPT_shared)) {
84 CmdArgs.push_back(
"-dynamic-linker");
85 CmdArgs.push_back(Args.MakeArgString(D.
DyldPrefix +
"ld.so.1"));
89 CmdArgs.push_back(
"-o");
92 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nostartfiles)) {
93 if (!Args.hasArg(options::OPT_shared)) {
94 CmdArgs.push_back(Args.MakeArgString(ToolChain.
GetFilePath(
"Scrt1.o")));
98 Args.AddAllArgs(CmdArgs, options::OPT_L);
99 Args.AddAllArgs(CmdArgs, options::OPT_u);
105 if (!Args.hasArg(options::OPT_nostdlib, options::OPT_nodefaultlibs)) {
106 if (Args.hasArg(options::OPT_static))
107 CmdArgs.push_back(
"-Bdynamic");
110 bool OnlyLibstdcxxStatic = Args.hasArg(options::OPT_static_libstdcxx) &&
111 !Args.hasArg(options::OPT_static);
112 if (OnlyLibstdcxxStatic)
113 CmdArgs.push_back(
"-Bstatic");
115 if (OnlyLibstdcxxStatic)
116 CmdArgs.push_back(
"-Bdynamic");
117 CmdArgs.push_back(
"-lm");
122 if (Args.hasArg(options::OPT_pthread) ||
123 Args.hasArg(options::OPT_pthreads))
124 CmdArgs.push_back(
"-lpthread");
126 if (Args.hasArg(options::OPT_fsplit_stack))
127 CmdArgs.push_back(
"--wrap=pthread_create");
129 CmdArgs.push_back(
"-lc");
132 C.
addCommand(llvm::make_unique<Command>(JA, *
this, Exec, CmdArgs, Inputs));
139 T += Triple.getArchName();
141 T += Triple.getOSName();
146 llvm::Triple Triple) {
160 llvm::sys::path::append(P,
"lib");
165 llvm::sys::path::append(P,
"lib");
174 return Triple.getTriple();
182 const ArgList &Args)
const {
183 if (Arg *A = Args.getLastArg(clang::driver::options::OPT_rtlib_EQ)) {
184 StringRef
Value = A->getValue();
185 if (Value !=
"compiler-rt")
187 << A->getAsString(Args);
195 if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
196 StringRef
Value = A->getValue();
197 if (Value !=
"libc++")
199 << A->getAsString(Args);
206 ArgStringList &CC1Args,
208 if (DriverArgs.hasFlag(options::OPT_fuse_init_array,
209 options::OPT_fno_use_init_array,
true))
210 CC1Args.push_back(
"-fuse-init-array");
214 ArgStringList &CC1Args)
const {
217 if (DriverArgs.hasArg(options::OPT_nostdinc))
220 if (!DriverArgs.hasArg(options::OPT_nobuiltininc)) {
222 llvm::sys::path::append(P,
"include");
226 if (DriverArgs.hasArg(options::OPT_nostdlibinc))
230 StringRef CIncludeDirs(C_INCLUDE_DIRS);
231 if (CIncludeDirs !=
"") {
233 CIncludeDirs.split(dirs,
":");
234 for (StringRef dir : dirs) {
236 llvm::sys::path::is_absolute(dir) ? StringRef(D.
SysRoot) :
"";
244 llvm::sys::path::append(P,
"include");
250 ArgStringList &CC1Args)
const {
251 if (DriverArgs.hasArg(options::OPT_nostdlibinc) ||
252 DriverArgs.hasArg(options::OPT_nostdincxx))
258 llvm::sys::path::append(P,
"include",
"c++",
"v1");
264 llvm_unreachable(
"invalid stdlib name");
269 ArgStringList &CmdArgs)
const {
272 CmdArgs.push_back(
"-lc++");
273 CmdArgs.push_back(
"-lc++abi");
274 CmdArgs.push_back(
"-lunwind");
278 llvm_unreachable(
"invalid stdlib name");
284 Res |= SanitizerKind::SafeStack;
std::string DyldPrefix
Dynamic loader prefix, if present.
DiagnosticBuilder Diag(unsigned DiagID) const
bool CCCIsCXX() const
Whether the driver should follow g++ like behavior.
std::string Dir
The path the driver executable was in, as invoked from the command line.
Driver - Encapsulate logic for constructing compilation processes from a set of gcc-driver-like comma...
void addCommand(std::unique_ptr< Command > C)
static std::string getTargetDir(const Driver &D, llvm::Triple Triple)
std::string SysRoot
sysroot, if present
Compilation - A set of tasks to perform for a single driver invocation.
static std::string normalizeTriple(llvm::Triple Triple)
Fuchsia - Fuchsia tool chain which can call as(1) and ld(1) directly.
std::string ResourceDir
The path to the compiler resource directory.