File: | projects/openmp/runtime/src/kmp_alloc.cpp |
Warning: | line 969, column 14 Dereference of null pointer |
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1 | /* | |||||||
2 | * kmp_alloc.cpp -- private/shared dynamic memory allocation and management | |||||||
3 | */ | |||||||
4 | ||||||||
5 | //===----------------------------------------------------------------------===// | |||||||
6 | // | |||||||
7 | // The LLVM Compiler Infrastructure | |||||||
8 | // | |||||||
9 | // This file is dual licensed under the MIT and the University of Illinois Open | |||||||
10 | // Source Licenses. See LICENSE.txt for details. | |||||||
11 | // | |||||||
12 | //===----------------------------------------------------------------------===// | |||||||
13 | ||||||||
14 | #include "kmp.h" | |||||||
15 | #include "kmp_io.h" | |||||||
16 | #include "kmp_wrapper_malloc.h" | |||||||
17 | ||||||||
18 | // Disable bget when it is not used | |||||||
19 | #if KMP_USE_BGET1 | |||||||
20 | ||||||||
21 | /* Thread private buffer management code */ | |||||||
22 | ||||||||
23 | typedef int (*bget_compact_t)(size_t, int); | |||||||
24 | typedef void *(*bget_acquire_t)(size_t); | |||||||
25 | typedef void (*bget_release_t)(void *); | |||||||
26 | ||||||||
27 | /* NOTE: bufsize must be a signed datatype */ | |||||||
28 | ||||||||
29 | #if KMP_OS_WINDOWS0 | |||||||
30 | #if KMP_ARCH_X860 || KMP_ARCH_ARM | |||||||
31 | typedef kmp_int32 bufsize; | |||||||
32 | #else | |||||||
33 | typedef kmp_int64 bufsize; | |||||||
34 | #endif | |||||||
35 | #else | |||||||
36 | typedef ssize_t bufsize; | |||||||
37 | #endif | |||||||
38 | ||||||||
39 | /* The three modes of operation are, fifo search, lifo search, and best-fit */ | |||||||
40 | ||||||||
41 | typedef enum bget_mode { | |||||||
42 | bget_mode_fifo = 0, | |||||||
43 | bget_mode_lifo = 1, | |||||||
44 | bget_mode_best = 2 | |||||||
45 | } bget_mode_t; | |||||||
46 | ||||||||
47 | static void bpool(kmp_info_t *th, void *buffer, bufsize len); | |||||||
48 | static void *bget(kmp_info_t *th, bufsize size); | |||||||
49 | static void *bgetz(kmp_info_t *th, bufsize size); | |||||||
50 | static void *bgetr(kmp_info_t *th, void *buffer, bufsize newsize); | |||||||
51 | static void brel(kmp_info_t *th, void *buf); | |||||||
52 | static void bectl(kmp_info_t *th, bget_compact_t compact, | |||||||
53 | bget_acquire_t acquire, bget_release_t release, | |||||||
54 | bufsize pool_incr); | |||||||
55 | ||||||||
56 | #ifdef KMP_DEBUG1 | |||||||
57 | static void bstats(kmp_info_t *th, bufsize *curalloc, bufsize *totfree, | |||||||
58 | bufsize *maxfree, long *nget, long *nrel); | |||||||
59 | static void bstatse(kmp_info_t *th, bufsize *pool_incr, long *npool, | |||||||
60 | long *npget, long *nprel, long *ndget, long *ndrel); | |||||||
61 | static void bufdump(kmp_info_t *th, void *buf); | |||||||
62 | static void bpoold(kmp_info_t *th, void *pool, int dumpalloc, int dumpfree); | |||||||
63 | static int bpoolv(kmp_info_t *th, void *pool); | |||||||
64 | #endif | |||||||
65 | ||||||||
66 | /* BGET CONFIGURATION */ | |||||||
67 | /* Buffer allocation size quantum: all buffers allocated are a | |||||||
68 | multiple of this size. This MUST be a power of two. */ | |||||||
69 | ||||||||
70 | /* On IA-32 architecture with Linux* OS, malloc() does not | |||||||
71 | ensure 16 byte alignmnent */ | |||||||
72 | ||||||||
73 | #if KMP_ARCH_X860 || !KMP_HAVE_QUAD0 | |||||||
74 | ||||||||
75 | #define SizeQuant8 8 | |||||||
76 | #define AlignTypedouble double | |||||||
77 | ||||||||
78 | #else | |||||||
79 | ||||||||
80 | #define SizeQuant8 16 | |||||||
81 | #define AlignTypedouble _Quad | |||||||
82 | ||||||||
83 | #endif | |||||||
84 | ||||||||
85 | // Define this symbol to enable the bstats() function which calculates the | |||||||
86 | // total free space in the buffer pool, the largest available buffer, and the | |||||||
87 | // total space currently allocated. | |||||||
88 | #define BufStats1 1 | |||||||
89 | ||||||||
90 | #ifdef KMP_DEBUG1 | |||||||
91 | ||||||||
92 | // Define this symbol to enable the bpoold() function which dumps the buffers | |||||||
93 | // in a buffer pool. | |||||||
94 | #define BufDump1 1 | |||||||
95 | ||||||||
96 | // Define this symbol to enable the bpoolv() function for validating a buffer | |||||||
97 | // pool. | |||||||
98 | #define BufValid1 1 | |||||||
99 | ||||||||
100 | // Define this symbol to enable the bufdump() function which allows dumping the | |||||||
101 | // contents of an allocated or free buffer. | |||||||
102 | #define DumpData1 1 | |||||||
103 | ||||||||
104 | #ifdef NOT_USED_NOW | |||||||
105 | ||||||||
106 | // Wipe free buffers to a guaranteed pattern of garbage to trip up miscreants | |||||||
107 | // who attempt to use pointers into released buffers. | |||||||
108 | #define FreeWipe 1 | |||||||
109 | ||||||||
110 | // Use a best fit algorithm when searching for space for an allocation request. | |||||||
111 | // This uses memory more efficiently, but allocation will be much slower. | |||||||
112 | #define BestFit 1 | |||||||
113 | ||||||||
114 | #endif /* NOT_USED_NOW */ | |||||||
115 | #endif /* KMP_DEBUG */ | |||||||
116 | ||||||||
117 | static bufsize bget_bin_size[] = { | |||||||
118 | 0, | |||||||
119 | // 1 << 6, /* .5 Cache line */ | |||||||
120 | 1 << 7, /* 1 Cache line, new */ | |||||||
121 | 1 << 8, /* 2 Cache lines */ | |||||||
122 | 1 << 9, /* 4 Cache lines, new */ | |||||||
123 | 1 << 10, /* 8 Cache lines */ | |||||||
124 | 1 << 11, /* 16 Cache lines, new */ | |||||||
125 | 1 << 12, 1 << 13, /* new */ | |||||||
126 | 1 << 14, 1 << 15, /* new */ | |||||||
127 | 1 << 16, 1 << 17, 1 << 18, 1 << 19, 1 << 20, /* 1MB */ | |||||||
128 | 1 << 21, /* 2MB */ | |||||||
129 | 1 << 22, /* 4MB */ | |||||||
130 | 1 << 23, /* 8MB */ | |||||||
131 | 1 << 24, /* 16MB */ | |||||||
132 | 1 << 25, /* 32MB */ | |||||||
133 | }; | |||||||
134 | ||||||||
135 | #define MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)) (int)(sizeof(bget_bin_size) / sizeof(bufsize)) | |||||||
136 | ||||||||
137 | struct bfhead; | |||||||
138 | ||||||||
139 | // Declare the interface, including the requested buffer size type, bufsize. | |||||||
140 | ||||||||
141 | /* Queue links */ | |||||||
142 | typedef struct qlinks { | |||||||
143 | struct bfhead *flink; /* Forward link */ | |||||||
144 | struct bfhead *blink; /* Backward link */ | |||||||
145 | } qlinks_t; | |||||||
146 | ||||||||
147 | /* Header in allocated and free buffers */ | |||||||
148 | typedef struct bhead2 { | |||||||
149 | kmp_info_t *bthr; /* The thread which owns the buffer pool */ | |||||||
150 | bufsize prevfree; /* Relative link back to previous free buffer in memory or | |||||||
151 | 0 if previous buffer is allocated. */ | |||||||
152 | bufsize bsize; /* Buffer size: positive if free, negative if allocated. */ | |||||||
153 | } bhead2_t; | |||||||
154 | ||||||||
155 | /* Make sure the bhead structure is a multiple of SizeQuant in size. */ | |||||||
156 | typedef union bhead { | |||||||
157 | KMP_ALIGN(SizeQuant)__attribute__((aligned(8))) | |||||||
158 | AlignTypedouble b_align; | |||||||
159 | char b_pad[sizeof(bhead2_t) + (SizeQuant8 - (sizeof(bhead2_t) % SizeQuant8))]; | |||||||
160 | bhead2_t bb; | |||||||
161 | } bhead_t; | |||||||
162 | #define BH(p)((bhead_t *)(p)) ((bhead_t *)(p)) | |||||||
163 | ||||||||
164 | /* Header in directly allocated buffers (by acqfcn) */ | |||||||
165 | typedef struct bdhead { | |||||||
166 | bufsize tsize; /* Total size, including overhead */ | |||||||
167 | bhead_t bh; /* Common header */ | |||||||
168 | } bdhead_t; | |||||||
169 | #define BDH(p)((bdhead_t *)(p)) ((bdhead_t *)(p)) | |||||||
170 | ||||||||
171 | /* Header in free buffers */ | |||||||
172 | typedef struct bfhead { | |||||||
173 | bhead_t bh; /* Common allocated/free header */ | |||||||
174 | qlinks_t ql; /* Links on free list */ | |||||||
175 | } bfhead_t; | |||||||
176 | #define BFH(p)((bfhead_t *)(p)) ((bfhead_t *)(p)) | |||||||
177 | ||||||||
178 | typedef struct thr_data { | |||||||
179 | bfhead_t freelist[MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize))]; | |||||||
180 | #if BufStats1 | |||||||
181 | size_t totalloc; /* Total space currently allocated */ | |||||||
182 | long numget, numrel; /* Number of bget() and brel() calls */ | |||||||
183 | long numpblk; /* Number of pool blocks */ | |||||||
184 | long numpget, numprel; /* Number of block gets and rels */ | |||||||
185 | long numdget, numdrel; /* Number of direct gets and rels */ | |||||||
186 | #endif /* BufStats */ | |||||||
187 | ||||||||
188 | /* Automatic expansion block management functions */ | |||||||
189 | bget_compact_t compfcn; | |||||||
190 | bget_acquire_t acqfcn; | |||||||
191 | bget_release_t relfcn; | |||||||
192 | ||||||||
193 | bget_mode_t mode; /* what allocation mode to use? */ | |||||||
194 | ||||||||
195 | bufsize exp_incr; /* Expansion block size */ | |||||||
196 | bufsize pool_len; /* 0: no bpool calls have been made | |||||||
197 | -1: not all pool blocks are the same size | |||||||
198 | >0: (common) block size for all bpool calls made so far | |||||||
199 | */ | |||||||
200 | bfhead_t *last_pool; /* Last pool owned by this thread (delay dealocation) */ | |||||||
201 | } thr_data_t; | |||||||
202 | ||||||||
203 | /* Minimum allocation quantum: */ | |||||||
204 | #define QLSize(sizeof(qlinks_t)) (sizeof(qlinks_t)) | |||||||
205 | #define SizeQ((8 > (sizeof(qlinks_t))) ? 8 : (sizeof(qlinks_t))) ((SizeQuant8 > QLSize(sizeof(qlinks_t))) ? SizeQuant8 : QLSize(sizeof(qlinks_t))) | |||||||
206 | #define MaxSize(bufsize)( ~(((bufsize)(1) << (sizeof(bufsize) * 8 - 1) ) | (8 - 1))) \ | |||||||
207 | (bufsize)( \ | |||||||
208 | ~(((bufsize)(1) << (sizeof(bufsize) * CHAR_BIT8 - 1)) | (SizeQuant8 - 1))) | |||||||
209 | // Maximun for the requested size. | |||||||
210 | ||||||||
211 | /* End sentinel: value placed in bsize field of dummy block delimiting | |||||||
212 | end of pool block. The most negative number which will fit in a | |||||||
213 | bufsize, defined in a way that the compiler will accept. */ | |||||||
214 | ||||||||
215 | #define ESent((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2)) \ | |||||||
216 | ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2)) | |||||||
217 | ||||||||
218 | /* Thread Data management routines */ | |||||||
219 | static int bget_get_bin(bufsize size) { | |||||||
220 | // binary chop bins | |||||||
221 | int lo = 0, hi = MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)) - 1; | |||||||
222 | ||||||||
223 | KMP_DEBUG_ASSERT(size > 0)((size > 0) ? 0 : __kmp_debug_assert("size > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 223)); | |||||||
224 | ||||||||
225 | while ((hi - lo) > 1) { | |||||||
226 | int mid = (lo + hi) >> 1; | |||||||
227 | if (size < bget_bin_size[mid]) | |||||||
228 | hi = mid - 1; | |||||||
229 | else | |||||||
230 | lo = mid; | |||||||
231 | } | |||||||
232 | ||||||||
233 | KMP_DEBUG_ASSERT((lo >= 0) && (lo < MAX_BGET_BINS))(((lo >= 0) && (lo < (int)(sizeof(bget_bin_size ) / sizeof(bufsize)))) ? 0 : __kmp_debug_assert("(lo >= 0) && (lo < (int)(sizeof(bget_bin_size) / sizeof(bufsize)))" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 233)); | |||||||
234 | ||||||||
235 | return lo; | |||||||
236 | } | |||||||
237 | ||||||||
238 | static void set_thr_data(kmp_info_t *th) { | |||||||
239 | int i; | |||||||
240 | thr_data_t *data; | |||||||
241 | ||||||||
242 | data = (thr_data_t *)((!th->th.th_local.bget_data) | |||||||
243 | ? __kmp_allocate(sizeof(*data))___kmp_allocate((sizeof(*data)), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 243) | |||||||
244 | : th->th.th_local.bget_data); | |||||||
245 | ||||||||
246 | memset(data, '\0', sizeof(*data)); | |||||||
247 | ||||||||
248 | for (i = 0; i < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++i) { | |||||||
249 | data->freelist[i].ql.flink = &data->freelist[i]; | |||||||
250 | data->freelist[i].ql.blink = &data->freelist[i]; | |||||||
251 | } | |||||||
252 | ||||||||
253 | th->th.th_local.bget_data = data; | |||||||
254 | th->th.th_local.bget_list = 0; | |||||||
255 | #if !USE_CMP_XCHG_FOR_BGET1 | |||||||
256 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
257 | __kmp_init_lock(&th->th.th_local.bget_lock); | |||||||
258 | #else | |||||||
259 | __kmp_init_bootstrap_lock(&th->th.th_local.bget_lock); | |||||||
260 | #endif /* USE_LOCK_FOR_BGET */ | |||||||
261 | #endif /* ! USE_CMP_XCHG_FOR_BGET */ | |||||||
262 | } | |||||||
263 | ||||||||
264 | static thr_data_t *get_thr_data(kmp_info_t *th) { | |||||||
265 | thr_data_t *data; | |||||||
266 | ||||||||
267 | data = (thr_data_t *)th->th.th_local.bget_data; | |||||||
268 | ||||||||
269 | KMP_DEBUG_ASSERT(data != 0)((data != 0) ? 0 : __kmp_debug_assert("data != 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 269)); | |||||||
270 | ||||||||
271 | return data; | |||||||
272 | } | |||||||
273 | ||||||||
274 | #ifdef KMP_DEBUG1 | |||||||
275 | ||||||||
276 | static void __kmp_bget_validate_queue(kmp_info_t *th) { | |||||||
277 | /* NOTE: assume that the global_lock is held */ | |||||||
278 | ||||||||
279 | void *p = (void *)th->th.th_local.bget_list; | |||||||
280 | ||||||||
281 | while (p != 0) { | |||||||
282 | bfhead_t *b = BFH(((char *)p) - sizeof(bhead_t))((bfhead_t *)(((char *)p) - sizeof(bhead_t))); | |||||||
283 | ||||||||
284 | KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0)((b->bh.bb.bsize != 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize != 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 284)); | |||||||
285 | p = (void *)b->ql.flink; | |||||||
286 | } | |||||||
287 | } | |||||||
288 | ||||||||
289 | #endif | |||||||
290 | ||||||||
291 | /* Walk the free list and release the enqueued buffers */ | |||||||
292 | static void __kmp_bget_dequeue(kmp_info_t *th) { | |||||||
293 | void *p = TCR_SYNC_PTR(th->th.th_local.bget_list)((void *)(th->th.th_local.bget_list)); | |||||||
294 | ||||||||
295 | if (p != 0) { | |||||||
296 | #if USE_CMP_XCHG_FOR_BGET1 | |||||||
297 | { | |||||||
298 | volatile void *old_value = TCR_SYNC_PTR(th->th.th_local.bget_list)((void *)(th->th.th_local.bget_list)); | |||||||
299 | while (!KMP_COMPARE_AND_STORE_PTR(&th->th.th_local.bget_list,__sync_bool_compare_and_swap((void *volatile *)(&th->th .th_local.bget_list), (void *)(const_cast<void *>(old_value )), (void *)(nullptr)) | |||||||
300 | CCAST(void *, old_value), nullptr)__sync_bool_compare_and_swap((void *volatile *)(&th->th .th_local.bget_list), (void *)(const_cast<void *>(old_value )), (void *)(nullptr))) { | |||||||
301 | KMP_CPU_PAUSE()__kmp_x86_pause(); | |||||||
302 | old_value = TCR_SYNC_PTR(th->th.th_local.bget_list)((void *)(th->th.th_local.bget_list)); | |||||||
303 | } | |||||||
304 | p = CCAST(void *, old_value)const_cast<void *>(old_value); | |||||||
305 | } | |||||||
306 | #else /* ! USE_CMP_XCHG_FOR_BGET */ | |||||||
307 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
308 | __kmp_acquire_lock(&th->th.th_local.bget_lock, __kmp_gtid_from_thread(th)((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 308)), (th)->th.th_info.ds.ds_gtid)); | |||||||
309 | #else | |||||||
310 | __kmp_acquire_bootstrap_lock(&th->th.th_local.bget_lock); | |||||||
311 | #endif /* USE_QUEUING_LOCK_FOR_BGET */ | |||||||
312 | ||||||||
313 | p = (void *)th->th.th_local.bget_list; | |||||||
314 | th->th.th_local.bget_list = 0; | |||||||
315 | ||||||||
316 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
317 | __kmp_release_lock(&th->th.th_local.bget_lock, __kmp_gtid_from_thread(th)((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 317)), (th)->th.th_info.ds.ds_gtid)); | |||||||
318 | #else | |||||||
319 | __kmp_release_bootstrap_lock(&th->th.th_local.bget_lock); | |||||||
320 | #endif | |||||||
321 | #endif /* USE_CMP_XCHG_FOR_BGET */ | |||||||
322 | ||||||||
323 | /* Check again to make sure the list is not empty */ | |||||||
324 | while (p != 0) { | |||||||
325 | void *buf = p; | |||||||
326 | bfhead_t *b = BFH(((char *)p) - sizeof(bhead_t))((bfhead_t *)(((char *)p) - sizeof(bhead_t))); | |||||||
327 | ||||||||
328 | KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0)((b->bh.bb.bsize != 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize != 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 328)); | |||||||
329 | KMP_DEBUG_ASSERT(((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr) & ~1) ==((((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == ( kmp_uintptr_t)th) ? 0 : __kmp_debug_assert("((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == (kmp_uintptr_t)th" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 330)) | |||||||
330 | (kmp_uintptr_t)th)((((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == ( kmp_uintptr_t)th) ? 0 : __kmp_debug_assert("((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == (kmp_uintptr_t)th" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 330)); // clear possible mark | |||||||
331 | KMP_DEBUG_ASSERT(b->ql.blink == 0)((b->ql.blink == 0) ? 0 : __kmp_debug_assert("b->ql.blink == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 331)); | |||||||
332 | ||||||||
333 | p = (void *)b->ql.flink; | |||||||
334 | ||||||||
335 | brel(th, buf); | |||||||
336 | } | |||||||
337 | } | |||||||
338 | } | |||||||
339 | ||||||||
340 | /* Chain together the free buffers by using the thread owner field */ | |||||||
341 | static void __kmp_bget_enqueue(kmp_info_t *th, void *buf | |||||||
342 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
343 | , | |||||||
344 | kmp_int32 rel_gtid | |||||||
345 | #endif | |||||||
346 | ) { | |||||||
347 | bfhead_t *b = BFH(((char *)buf) - sizeof(bhead_t))((bfhead_t *)(((char *)buf) - sizeof(bhead_t))); | |||||||
348 | ||||||||
349 | KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0)((b->bh.bb.bsize != 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize != 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 349)); | |||||||
350 | KMP_DEBUG_ASSERT(((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr) & ~1) ==((((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == ( kmp_uintptr_t)th) ? 0 : __kmp_debug_assert("((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == (kmp_uintptr_t)th" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 351)) | |||||||
351 | (kmp_uintptr_t)th)((((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == ( kmp_uintptr_t)th) ? 0 : __kmp_debug_assert("((kmp_uintptr_t)((void *)(b->bh.bb.bthr)) & ~1) == (kmp_uintptr_t)th" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 351)); // clear possible mark | |||||||
352 | ||||||||
353 | b->ql.blink = 0; | |||||||
354 | ||||||||
355 | KC_TRACE(10, ("__kmp_bget_enqueue: moving buffer to T#%d list\n",if (kmp_c_debug >= 10) { __kmp_debug_printf ("__kmp_bget_enqueue: moving buffer to T#%d list\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 356)), (th)->th.th_info.ds.ds_gtid)); } | |||||||
356 | __kmp_gtid_from_thread(th)))if (kmp_c_debug >= 10) { __kmp_debug_printf ("__kmp_bget_enqueue: moving buffer to T#%d list\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 356)), (th)->th.th_info.ds.ds_gtid)); }; | |||||||
357 | ||||||||
358 | #if USE_CMP_XCHG_FOR_BGET1 | |||||||
359 | { | |||||||
360 | volatile void *old_value = TCR_PTR(th->th.th_local.bget_list)((void *)(th->th.th_local.bget_list)); | |||||||
361 | /* the next pointer must be set before setting bget_list to buf to avoid | |||||||
362 | exposing a broken list to other threads, even for an instant. */ | |||||||
363 | b->ql.flink = BFH(CCAST(void *, old_value))((bfhead_t *)(const_cast<void *>(old_value))); | |||||||
364 | ||||||||
365 | while (!KMP_COMPARE_AND_STORE_PTR(&th->th.th_local.bget_list,__sync_bool_compare_and_swap((void *volatile *)(&th->th .th_local.bget_list), (void *)(const_cast<void *>(old_value )), (void *)(buf)) | |||||||
366 | CCAST(void *, old_value), buf)__sync_bool_compare_and_swap((void *volatile *)(&th->th .th_local.bget_list), (void *)(const_cast<void *>(old_value )), (void *)(buf))) { | |||||||
367 | KMP_CPU_PAUSE()__kmp_x86_pause(); | |||||||
368 | old_value = TCR_PTR(th->th.th_local.bget_list)((void *)(th->th.th_local.bget_list)); | |||||||
369 | /* the next pointer must be set before setting bget_list to buf to avoid | |||||||
370 | exposing a broken list to other threads, even for an instant. */ | |||||||
371 | b->ql.flink = BFH(CCAST(void *, old_value))((bfhead_t *)(const_cast<void *>(old_value))); | |||||||
372 | } | |||||||
373 | } | |||||||
374 | #else /* ! USE_CMP_XCHG_FOR_BGET */ | |||||||
375 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
376 | __kmp_acquire_lock(&th->th.th_local.bget_lock, rel_gtid); | |||||||
377 | #else | |||||||
378 | __kmp_acquire_bootstrap_lock(&th->th.th_local.bget_lock); | |||||||
379 | #endif | |||||||
380 | ||||||||
381 | b->ql.flink = BFH(th->th.th_local.bget_list)((bfhead_t *)(th->th.th_local.bget_list)); | |||||||
382 | th->th.th_local.bget_list = (void *)buf; | |||||||
383 | ||||||||
384 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
385 | __kmp_release_lock(&th->th.th_local.bget_lock, rel_gtid); | |||||||
386 | #else | |||||||
387 | __kmp_release_bootstrap_lock(&th->th.th_local.bget_lock); | |||||||
388 | #endif | |||||||
389 | #endif /* USE_CMP_XCHG_FOR_BGET */ | |||||||
390 | } | |||||||
391 | ||||||||
392 | /* insert buffer back onto a new freelist */ | |||||||
393 | static void __kmp_bget_insert_into_freelist(thr_data_t *thr, bfhead_t *b) { | |||||||
394 | int bin; | |||||||
395 | ||||||||
396 | KMP_DEBUG_ASSERT(((size_t)b) % SizeQuant == 0)((((size_t)b) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)b) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 396)); | |||||||
397 | KMP_DEBUG_ASSERT(b->bh.bb.bsize % SizeQuant == 0)((b->bh.bb.bsize % 8 == 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 397)); | |||||||
398 | ||||||||
399 | bin = bget_get_bin(b->bh.bb.bsize); | |||||||
400 | ||||||||
401 | KMP_DEBUG_ASSERT(thr->freelist[bin].ql.blink->ql.flink ==((thr->freelist[bin].ql.blink->ql.flink == &thr-> freelist[bin]) ? 0 : __kmp_debug_assert("thr->freelist[bin].ql.blink->ql.flink == &thr->freelist[bin]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 402)) | |||||||
402 | &thr->freelist[bin])((thr->freelist[bin].ql.blink->ql.flink == &thr-> freelist[bin]) ? 0 : __kmp_debug_assert("thr->freelist[bin].ql.blink->ql.flink == &thr->freelist[bin]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 402)); | |||||||
403 | KMP_DEBUG_ASSERT(thr->freelist[bin].ql.flink->ql.blink ==((thr->freelist[bin].ql.flink->ql.blink == &thr-> freelist[bin]) ? 0 : __kmp_debug_assert("thr->freelist[bin].ql.flink->ql.blink == &thr->freelist[bin]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 404)) | |||||||
404 | &thr->freelist[bin])((thr->freelist[bin].ql.flink->ql.blink == &thr-> freelist[bin]) ? 0 : __kmp_debug_assert("thr->freelist[bin].ql.flink->ql.blink == &thr->freelist[bin]" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 404)); | |||||||
405 | ||||||||
406 | b->ql.flink = &thr->freelist[bin]; | |||||||
407 | b->ql.blink = thr->freelist[bin].ql.blink; | |||||||
408 | ||||||||
409 | thr->freelist[bin].ql.blink = b; | |||||||
410 | b->ql.blink->ql.flink = b; | |||||||
411 | } | |||||||
412 | ||||||||
413 | /* unlink the buffer from the old freelist */ | |||||||
414 | static void __kmp_bget_remove_from_freelist(bfhead_t *b) { | |||||||
415 | KMP_DEBUG_ASSERT(b->ql.blink->ql.flink == b)((b->ql.blink->ql.flink == b) ? 0 : __kmp_debug_assert( "b->ql.blink->ql.flink == b", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 415)); | |||||||
416 | KMP_DEBUG_ASSERT(b->ql.flink->ql.blink == b)((b->ql.flink->ql.blink == b) ? 0 : __kmp_debug_assert( "b->ql.flink->ql.blink == b", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 416)); | |||||||
417 | ||||||||
418 | b->ql.blink->ql.flink = b->ql.flink; | |||||||
419 | b->ql.flink->ql.blink = b->ql.blink; | |||||||
420 | } | |||||||
421 | ||||||||
422 | /* GET STATS -- check info on free list */ | |||||||
423 | static void bcheck(kmp_info_t *th, bufsize *max_free, bufsize *total_free) { | |||||||
424 | thr_data_t *thr = get_thr_data(th); | |||||||
425 | int bin; | |||||||
426 | ||||||||
427 | *total_free = *max_free = 0; | |||||||
428 | ||||||||
429 | for (bin = 0; bin < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++bin) { | |||||||
430 | bfhead_t *b, *best; | |||||||
431 | ||||||||
432 | best = &thr->freelist[bin]; | |||||||
433 | b = best->ql.flink; | |||||||
434 | ||||||||
435 | while (b != &thr->freelist[bin]) { | |||||||
436 | *total_free += (b->bh.bb.bsize - sizeof(bhead_t)); | |||||||
437 | if ((best == &thr->freelist[bin]) || (b->bh.bb.bsize < best->bh.bb.bsize)) | |||||||
438 | best = b; | |||||||
439 | ||||||||
440 | /* Link to next buffer */ | |||||||
441 | b = b->ql.flink; | |||||||
442 | } | |||||||
443 | ||||||||
444 | if (*max_free < best->bh.bb.bsize) | |||||||
445 | *max_free = best->bh.bb.bsize; | |||||||
446 | } | |||||||
447 | ||||||||
448 | if (*max_free > (bufsize)sizeof(bhead_t)) | |||||||
449 | *max_free -= sizeof(bhead_t); | |||||||
450 | } | |||||||
451 | ||||||||
452 | /* BGET -- Allocate a buffer. */ | |||||||
453 | static void *bget(kmp_info_t *th, bufsize requested_size) { | |||||||
454 | thr_data_t *thr = get_thr_data(th); | |||||||
455 | bufsize size = requested_size; | |||||||
456 | bfhead_t *b; | |||||||
457 | void *buf; | |||||||
458 | int compactseq = 0; | |||||||
459 | int use_blink = 0; | |||||||
460 | /* For BestFit */ | |||||||
461 | bfhead_t *best; | |||||||
462 | ||||||||
463 | if (size < 0 || size + sizeof(bhead_t) > MaxSize(bufsize)( ~(((bufsize)(1) << (sizeof(bufsize) * 8 - 1) ) | (8 - 1)))) { | |||||||
464 | return NULL__null; | |||||||
465 | } | |||||||
466 | ||||||||
467 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
468 | ||||||||
469 | if (size < (bufsize)SizeQ((8 > (sizeof(qlinks_t))) ? 8 : (sizeof(qlinks_t)))) { // Need at least room for the queue links. | |||||||
470 | size = SizeQ((8 > (sizeof(qlinks_t))) ? 8 : (sizeof(qlinks_t))); | |||||||
471 | } | |||||||
472 | #if defined(SizeQuant8) && (SizeQuant8 > 1) | |||||||
473 | size = (size + (SizeQuant8 - 1)) & (~(SizeQuant8 - 1)); | |||||||
474 | #endif | |||||||
475 | ||||||||
476 | size += sizeof(bhead_t); // Add overhead in allocated buffer to size required. | |||||||
477 | KMP_DEBUG_ASSERT(size >= 0)((size >= 0) ? 0 : __kmp_debug_assert("size >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 477)); | |||||||
478 | KMP_DEBUG_ASSERT(size % SizeQuant == 0)((size % 8 == 0) ? 0 : __kmp_debug_assert("size % 8 == 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 478)); | |||||||
479 | ||||||||
480 | use_blink = (thr->mode == bget_mode_lifo); | |||||||
481 | ||||||||
482 | /* If a compact function was provided in the call to bectl(), wrap | |||||||
483 | a loop around the allocation process to allow compaction to | |||||||
484 | intervene in case we don't find a suitable buffer in the chain. */ | |||||||
485 | ||||||||
486 | for (;;) { | |||||||
487 | int bin; | |||||||
488 | ||||||||
489 | for (bin = bget_get_bin(size); bin < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++bin) { | |||||||
490 | /* Link to next buffer */ | |||||||
491 | b = (use_blink ? thr->freelist[bin].ql.blink | |||||||
492 | : thr->freelist[bin].ql.flink); | |||||||
493 | ||||||||
494 | if (thr->mode == bget_mode_best) { | |||||||
495 | best = &thr->freelist[bin]; | |||||||
496 | ||||||||
497 | /* Scan the free list searching for the first buffer big enough | |||||||
498 | to hold the requested size buffer. */ | |||||||
499 | while (b != &thr->freelist[bin]) { | |||||||
500 | if (b->bh.bb.bsize >= (bufsize)size) { | |||||||
501 | if ((best == &thr->freelist[bin]) || | |||||||
502 | (b->bh.bb.bsize < best->bh.bb.bsize)) { | |||||||
503 | best = b; | |||||||
504 | } | |||||||
505 | } | |||||||
506 | ||||||||
507 | /* Link to next buffer */ | |||||||
508 | b = (use_blink ? b->ql.blink : b->ql.flink); | |||||||
509 | } | |||||||
510 | b = best; | |||||||
511 | } | |||||||
512 | ||||||||
513 | while (b != &thr->freelist[bin]) { | |||||||
514 | if ((bufsize)b->bh.bb.bsize >= (bufsize)size) { | |||||||
515 | ||||||||
516 | // Buffer is big enough to satisfy the request. Allocate it to the | |||||||
517 | // caller. We must decide whether the buffer is large enough to split | |||||||
518 | // into the part given to the caller and a free buffer that remains | |||||||
519 | // on the free list, or whether the entire buffer should be removed | |||||||
520 | // from the free list and given to the caller in its entirety. We | |||||||
521 | // only split the buffer if enough room remains for a header plus the | |||||||
522 | // minimum quantum of allocation. | |||||||
523 | if ((b->bh.bb.bsize - (bufsize)size) > | |||||||
524 | (bufsize)(SizeQ((8 > (sizeof(qlinks_t))) ? 8 : (sizeof(qlinks_t))) + (sizeof(bhead_t)))) { | |||||||
525 | bhead_t *ba, *bn; | |||||||
526 | ||||||||
527 | ba = BH(((char *)b) + (b->bh.bb.bsize - (bufsize)size))((bhead_t *)(((char *)b) + (b->bh.bb.bsize - (bufsize)size ))); | |||||||
528 | bn = BH(((char *)ba) + size)((bhead_t *)(((char *)ba) + size)); | |||||||
529 | ||||||||
530 | KMP_DEBUG_ASSERT(bn->bb.prevfree == b->bh.bb.bsize)((bn->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert ("bn->bb.prevfree == b->bh.bb.bsize", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 530)); | |||||||
531 | ||||||||
532 | /* Subtract size from length of free block. */ | |||||||
533 | b->bh.bb.bsize -= (bufsize)size; | |||||||
534 | ||||||||
535 | /* Link allocated buffer to the previous free buffer. */ | |||||||
536 | ba->bb.prevfree = b->bh.bb.bsize; | |||||||
537 | ||||||||
538 | /* Plug negative size into user buffer. */ | |||||||
539 | ba->bb.bsize = -size; | |||||||
540 | ||||||||
541 | /* Mark this buffer as owned by this thread. */ | |||||||
542 | TCW_PTR(ba->bb.bthr,((ba->bb.bthr)) = ((th)) | |||||||
543 | th)((ba->bb.bthr)) = ((th)); // not an allocated address (do not mark it) | |||||||
544 | /* Mark buffer after this one not preceded by free block. */ | |||||||
545 | bn->bb.prevfree = 0; | |||||||
546 | ||||||||
547 | // unlink buffer from old freelist, and reinsert into new freelist | |||||||
548 | __kmp_bget_remove_from_freelist(b); | |||||||
549 | __kmp_bget_insert_into_freelist(thr, b); | |||||||
550 | #if BufStats1 | |||||||
551 | thr->totalloc += (size_t)size; | |||||||
552 | thr->numget++; /* Increment number of bget() calls */ | |||||||
553 | #endif | |||||||
554 | buf = (void *)((((char *)ba) + sizeof(bhead_t))); | |||||||
555 | KMP_DEBUG_ASSERT(((size_t)buf) % SizeQuant == 0)((((size_t)buf) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)buf) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 555)); | |||||||
556 | return buf; | |||||||
557 | } else { | |||||||
558 | bhead_t *ba; | |||||||
559 | ||||||||
560 | ba = BH(((char *)b) + b->bh.bb.bsize)((bhead_t *)(((char *)b) + b->bh.bb.bsize)); | |||||||
561 | ||||||||
562 | KMP_DEBUG_ASSERT(ba->bb.prevfree == b->bh.bb.bsize)((ba->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert ("ba->bb.prevfree == b->bh.bb.bsize", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 562)); | |||||||
563 | ||||||||
564 | /* The buffer isn't big enough to split. Give the whole | |||||||
565 | shebang to the caller and remove it from the free list. */ | |||||||
566 | ||||||||
567 | __kmp_bget_remove_from_freelist(b); | |||||||
568 | #if BufStats1 | |||||||
569 | thr->totalloc += (size_t)b->bh.bb.bsize; | |||||||
570 | thr->numget++; /* Increment number of bget() calls */ | |||||||
571 | #endif | |||||||
572 | /* Negate size to mark buffer allocated. */ | |||||||
573 | b->bh.bb.bsize = -(b->bh.bb.bsize); | |||||||
574 | ||||||||
575 | /* Mark this buffer as owned by this thread. */ | |||||||
576 | TCW_PTR(ba->bb.bthr, th)((ba->bb.bthr)) = ((th)); // not an allocated address (do not mark) | |||||||
577 | /* Zero the back pointer in the next buffer in memory | |||||||
578 | to indicate that this buffer is allocated. */ | |||||||
579 | ba->bb.prevfree = 0; | |||||||
580 | ||||||||
581 | /* Give user buffer starting at queue links. */ | |||||||
582 | buf = (void *)&(b->ql); | |||||||
583 | KMP_DEBUG_ASSERT(((size_t)buf) % SizeQuant == 0)((((size_t)buf) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)buf) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 583)); | |||||||
584 | return buf; | |||||||
585 | } | |||||||
586 | } | |||||||
587 | ||||||||
588 | /* Link to next buffer */ | |||||||
589 | b = (use_blink ? b->ql.blink : b->ql.flink); | |||||||
590 | } | |||||||
591 | } | |||||||
592 | ||||||||
593 | /* We failed to find a buffer. If there's a compact function defined, | |||||||
594 | notify it of the size requested. If it returns TRUE, try the allocation | |||||||
595 | again. */ | |||||||
596 | ||||||||
597 | if ((thr->compfcn == 0) || (!(*thr->compfcn)(size, ++compactseq))) { | |||||||
598 | break; | |||||||
599 | } | |||||||
600 | } | |||||||
601 | ||||||||
602 | /* No buffer available with requested size free. */ | |||||||
603 | ||||||||
604 | /* Don't give up yet -- look in the reserve supply. */ | |||||||
605 | if (thr->acqfcn != 0) { | |||||||
606 | if (size > (bufsize)(thr->exp_incr - sizeof(bhead_t))) { | |||||||
607 | /* Request is too large to fit in a single expansion block. | |||||||
608 | Try to satisy it by a direct buffer acquisition. */ | |||||||
609 | bdhead_t *bdh; | |||||||
610 | ||||||||
611 | size += sizeof(bdhead_t) - sizeof(bhead_t); | |||||||
612 | ||||||||
613 | KE_TRACE(10, ("%%%%%% MALLOC( %d )\n", (int)size))if (kmp_e_debug >= 10) { __kmp_debug_printf ("%%%%%% MALLOC( %d )\n" , (int)size); }; | |||||||
614 | ||||||||
615 | /* richryan */ | |||||||
616 | bdh = BDH((*thr->acqfcn)((bufsize)size))((bdhead_t *)((*thr->acqfcn)((bufsize)size))); | |||||||
617 | if (bdh != NULL__null) { | |||||||
618 | ||||||||
619 | // Mark the buffer special by setting size field of its header to zero. | |||||||
620 | bdh->bh.bb.bsize = 0; | |||||||
621 | ||||||||
622 | /* Mark this buffer as owned by this thread. */ | |||||||
623 | TCW_PTR(bdh->bh.bb.bthr, th)((bdh->bh.bb.bthr)) = ((th)); // don't mark buffer as allocated, | |||||||
624 | // because direct buffer never goes to free list | |||||||
625 | bdh->bh.bb.prevfree = 0; | |||||||
626 | bdh->tsize = size; | |||||||
627 | #if BufStats1 | |||||||
628 | thr->totalloc += (size_t)size; | |||||||
629 | thr->numget++; /* Increment number of bget() calls */ | |||||||
630 | thr->numdget++; /* Direct bget() call count */ | |||||||
631 | #endif | |||||||
632 | buf = (void *)(bdh + 1); | |||||||
633 | KMP_DEBUG_ASSERT(((size_t)buf) % SizeQuant == 0)((((size_t)buf) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)buf) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 633)); | |||||||
634 | return buf; | |||||||
635 | } | |||||||
636 | ||||||||
637 | } else { | |||||||
638 | ||||||||
639 | /* Try to obtain a new expansion block */ | |||||||
640 | void *newpool; | |||||||
641 | ||||||||
642 | KE_TRACE(10, ("%%%%%% MALLOCB( %d )\n", (int)thr->exp_incr))if (kmp_e_debug >= 10) { __kmp_debug_printf ("%%%%%% MALLOCB( %d )\n" , (int)thr->exp_incr); }; | |||||||
643 | ||||||||
644 | /* richryan */ | |||||||
645 | newpool = (*thr->acqfcn)((bufsize)thr->exp_incr); | |||||||
646 | KMP_DEBUG_ASSERT(((size_t)newpool) % SizeQuant == 0)((((size_t)newpool) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)newpool) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 646)); | |||||||
647 | if (newpool != NULL__null) { | |||||||
648 | bpool(th, newpool, thr->exp_incr); | |||||||
649 | buf = bget( | |||||||
650 | th, requested_size); /* This can't, I say, can't get into a loop. */ | |||||||
651 | return buf; | |||||||
652 | } | |||||||
653 | } | |||||||
654 | } | |||||||
655 | ||||||||
656 | /* Still no buffer available */ | |||||||
657 | ||||||||
658 | return NULL__null; | |||||||
659 | } | |||||||
660 | ||||||||
661 | /* BGETZ -- Allocate a buffer and clear its contents to zero. We clear | |||||||
662 | the entire contents of the buffer to zero, not just the | |||||||
663 | region requested by the caller. */ | |||||||
664 | ||||||||
665 | static void *bgetz(kmp_info_t *th, bufsize size) { | |||||||
666 | char *buf = (char *)bget(th, size); | |||||||
667 | ||||||||
668 | if (buf != NULL__null) { | |||||||
669 | bhead_t *b; | |||||||
670 | bufsize rsize; | |||||||
671 | ||||||||
672 | b = BH(buf - sizeof(bhead_t))((bhead_t *)(buf - sizeof(bhead_t))); | |||||||
673 | rsize = -(b->bb.bsize); | |||||||
674 | if (rsize == 0) { | |||||||
675 | bdhead_t *bd; | |||||||
676 | ||||||||
677 | bd = BDH(buf - sizeof(bdhead_t))((bdhead_t *)(buf - sizeof(bdhead_t))); | |||||||
678 | rsize = bd->tsize - (bufsize)sizeof(bdhead_t); | |||||||
679 | } else { | |||||||
680 | rsize -= sizeof(bhead_t); | |||||||
681 | } | |||||||
682 | ||||||||
683 | KMP_DEBUG_ASSERT(rsize >= size)((rsize >= size) ? 0 : __kmp_debug_assert("rsize >= size" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 683)); | |||||||
684 | ||||||||
685 | (void)memset(buf, 0, (bufsize)rsize); | |||||||
686 | } | |||||||
687 | return ((void *)buf); | |||||||
688 | } | |||||||
689 | ||||||||
690 | /* BGETR -- Reallocate a buffer. This is a minimal implementation, | |||||||
691 | simply in terms of brel() and bget(). It could be | |||||||
692 | enhanced to allow the buffer to grow into adjacent free | |||||||
693 | blocks and to avoid moving data unnecessarily. */ | |||||||
694 | ||||||||
695 | static void *bgetr(kmp_info_t *th, void *buf, bufsize size) { | |||||||
696 | void *nbuf; | |||||||
697 | bufsize osize; /* Old size of buffer */ | |||||||
698 | bhead_t *b; | |||||||
699 | ||||||||
700 | nbuf = bget(th, size); | |||||||
701 | if (nbuf == NULL__null) { /* Acquire new buffer */ | |||||||
702 | return NULL__null; | |||||||
703 | } | |||||||
704 | if (buf == NULL__null) { | |||||||
705 | return nbuf; | |||||||
706 | } | |||||||
707 | b = BH(((char *)buf) - sizeof(bhead_t))((bhead_t *)(((char *)buf) - sizeof(bhead_t))); | |||||||
708 | osize = -b->bb.bsize; | |||||||
709 | if (osize == 0) { | |||||||
710 | /* Buffer acquired directly through acqfcn. */ | |||||||
711 | bdhead_t *bd; | |||||||
712 | ||||||||
713 | bd = BDH(((char *)buf) - sizeof(bdhead_t))((bdhead_t *)(((char *)buf) - sizeof(bdhead_t))); | |||||||
714 | osize = bd->tsize - (bufsize)sizeof(bdhead_t); | |||||||
715 | } else { | |||||||
716 | osize -= sizeof(bhead_t); | |||||||
717 | } | |||||||
718 | ||||||||
719 | KMP_DEBUG_ASSERT(osize > 0)((osize > 0) ? 0 : __kmp_debug_assert("osize > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 719)); | |||||||
720 | ||||||||
721 | (void)KMP_MEMCPYmemcpy((char *)nbuf, (char *)buf, /* Copy the data */ | |||||||
722 | (size_t)((size < osize) ? size : osize)); | |||||||
723 | brel(th, buf); | |||||||
724 | ||||||||
725 | return nbuf; | |||||||
726 | } | |||||||
727 | ||||||||
728 | /* BREL -- Release a buffer. */ | |||||||
729 | static void brel(kmp_info_t *th, void *buf) { | |||||||
730 | thr_data_t *thr = get_thr_data(th); | |||||||
731 | bfhead_t *b, *bn; | |||||||
732 | kmp_info_t *bth; | |||||||
733 | ||||||||
734 | KMP_DEBUG_ASSERT(buf != NULL)((buf != __null) ? 0 : __kmp_debug_assert("buf != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 734)); | |||||||
735 | KMP_DEBUG_ASSERT(((size_t)buf) % SizeQuant == 0)((((size_t)buf) % 8 == 0) ? 0 : __kmp_debug_assert("((size_t)buf) % 8 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 735)); | |||||||
736 | ||||||||
737 | b = BFH(((char *)buf) - sizeof(bhead_t))((bfhead_t *)(((char *)buf) - sizeof(bhead_t))); | |||||||
738 | ||||||||
739 | if (b->bh.bb.bsize == 0) { /* Directly-acquired buffer? */ | |||||||
740 | bdhead_t *bdh; | |||||||
741 | ||||||||
742 | bdh = BDH(((char *)buf) - sizeof(bdhead_t))((bdhead_t *)(((char *)buf) - sizeof(bdhead_t))); | |||||||
743 | KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0)((b->bh.bb.prevfree == 0) ? 0 : __kmp_debug_assert("b->bh.bb.prevfree == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 743)); | |||||||
744 | #if BufStats1 | |||||||
745 | thr->totalloc -= (size_t)bdh->tsize; | |||||||
746 | thr->numdrel++; /* Number of direct releases */ | |||||||
747 | thr->numrel++; /* Increment number of brel() calls */ | |||||||
748 | #endif /* BufStats */ | |||||||
749 | #ifdef FreeWipe | |||||||
750 | (void)memset((char *)buf, 0x55, (size_t)(bdh->tsize - sizeof(bdhead_t))); | |||||||
751 | #endif /* FreeWipe */ | |||||||
752 | ||||||||
753 | KE_TRACE(10, ("%%%%%% FREE( %p )\n", (void *)bdh))if (kmp_e_debug >= 10) { __kmp_debug_printf ("%%%%%% FREE( %p )\n" , (void *)bdh); }; | |||||||
754 | ||||||||
755 | KMP_DEBUG_ASSERT(thr->relfcn != 0)((thr->relfcn != 0) ? 0 : __kmp_debug_assert("thr->relfcn != 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 755)); | |||||||
756 | (*thr->relfcn)((void *)bdh); /* Release it directly. */ | |||||||
757 | return; | |||||||
758 | } | |||||||
759 | ||||||||
760 | bth = (kmp_info_t *)((kmp_uintptr_t)TCR_PTR(b->bh.bb.bthr)((void *)(b->bh.bb.bthr)) & | |||||||
761 | ~1); // clear possible mark before comparison | |||||||
762 | if (bth != th) { | |||||||
763 | /* Add this buffer to be released by the owning thread later */ | |||||||
764 | __kmp_bget_enqueue(bth, buf | |||||||
765 | #ifdef USE_QUEUING_LOCK_FOR_BGET | |||||||
766 | , | |||||||
767 | __kmp_gtid_from_thread(th)((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 767)), (th)->th.th_info.ds.ds_gtid) | |||||||
768 | #endif | |||||||
769 | ); | |||||||
770 | return; | |||||||
771 | } | |||||||
772 | ||||||||
773 | /* Buffer size must be negative, indicating that the buffer is allocated. */ | |||||||
774 | if (b->bh.bb.bsize >= 0) { | |||||||
775 | bn = NULL__null; | |||||||
776 | } | |||||||
777 | KMP_DEBUG_ASSERT(b->bh.bb.bsize < 0)((b->bh.bb.bsize < 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize < 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 777)); | |||||||
778 | ||||||||
779 | /* Back pointer in next buffer must be zero, indicating the same thing: */ | |||||||
780 | ||||||||
781 | KMP_DEBUG_ASSERT(BH((char *)b - b->bh.bb.bsize)->bb.prevfree == 0)((((bhead_t *)((char *)b - b->bh.bb.bsize))->bb.prevfree == 0) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b - b->bh.bb.bsize))->bb.prevfree == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 781)); | |||||||
782 | ||||||||
783 | #if BufStats1 | |||||||
784 | thr->numrel++; /* Increment number of brel() calls */ | |||||||
785 | thr->totalloc += (size_t)b->bh.bb.bsize; | |||||||
786 | #endif | |||||||
787 | ||||||||
788 | /* If the back link is nonzero, the previous buffer is free. */ | |||||||
789 | ||||||||
790 | if (b->bh.bb.prevfree != 0) { | |||||||
791 | /* The previous buffer is free. Consolidate this buffer with it by adding | |||||||
792 | the length of this buffer to the previous free buffer. Note that we | |||||||
793 | subtract the size in the buffer being released, since it's negative to | |||||||
794 | indicate that the buffer is allocated. */ | |||||||
795 | bufsize size = b->bh.bb.bsize; | |||||||
796 | ||||||||
797 | /* Make the previous buffer the one we're working on. */ | |||||||
798 | KMP_DEBUG_ASSERT(BH((char *)b - b->bh.bb.prevfree)->bb.bsize ==((((bhead_t *)((char *)b - b->bh.bb.prevfree))->bb.bsize == b->bh.bb.prevfree) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b - b->bh.bb.prevfree))->bb.bsize == b->bh.bb.prevfree" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 799)) | |||||||
799 | b->bh.bb.prevfree)((((bhead_t *)((char *)b - b->bh.bb.prevfree))->bb.bsize == b->bh.bb.prevfree) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b - b->bh.bb.prevfree))->bb.bsize == b->bh.bb.prevfree" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 799)); | |||||||
800 | b = BFH(((char *)b) - b->bh.bb.prevfree)((bfhead_t *)(((char *)b) - b->bh.bb.prevfree)); | |||||||
801 | b->bh.bb.bsize -= size; | |||||||
802 | ||||||||
803 | /* unlink the buffer from the old freelist */ | |||||||
804 | __kmp_bget_remove_from_freelist(b); | |||||||
805 | } else { | |||||||
806 | /* The previous buffer isn't allocated. Mark this buffer size as positive | |||||||
807 | (i.e. free) and fall through to place the buffer on the free list as an | |||||||
808 | isolated free block. */ | |||||||
809 | b->bh.bb.bsize = -b->bh.bb.bsize; | |||||||
810 | } | |||||||
811 | ||||||||
812 | /* insert buffer back onto a new freelist */ | |||||||
813 | __kmp_bget_insert_into_freelist(thr, b); | |||||||
814 | ||||||||
815 | /* Now we look at the next buffer in memory, located by advancing from | |||||||
816 | the start of this buffer by its size, to see if that buffer is | |||||||
817 | free. If it is, we combine this buffer with the next one in | |||||||
818 | memory, dechaining the second buffer from the free list. */ | |||||||
819 | bn = BFH(((char *)b) + b->bh.bb.bsize)((bfhead_t *)(((char *)b) + b->bh.bb.bsize)); | |||||||
820 | if (bn->bh.bb.bsize > 0) { | |||||||
821 | ||||||||
822 | /* The buffer is free. Remove it from the free list and add | |||||||
823 | its size to that of our buffer. */ | |||||||
824 | KMP_DEBUG_ASSERT(BH((char *)bn + bn->bh.bb.bsize)->bb.prevfree ==((((bhead_t *)((char *)bn + bn->bh.bb.bsize))->bb.prevfree == bn->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)bn + bn->bh.bb.bsize))->bb.prevfree == bn->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 825)) | |||||||
825 | bn->bh.bb.bsize)((((bhead_t *)((char *)bn + bn->bh.bb.bsize))->bb.prevfree == bn->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)bn + bn->bh.bb.bsize))->bb.prevfree == bn->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 825)); | |||||||
826 | ||||||||
827 | __kmp_bget_remove_from_freelist(bn); | |||||||
828 | ||||||||
829 | b->bh.bb.bsize += bn->bh.bb.bsize; | |||||||
830 | ||||||||
831 | /* unlink the buffer from the old freelist, and reinsert it into the new | |||||||
832 | * freelist */ | |||||||
833 | __kmp_bget_remove_from_freelist(b); | |||||||
834 | __kmp_bget_insert_into_freelist(thr, b); | |||||||
835 | ||||||||
836 | /* Finally, advance to the buffer that follows the newly | |||||||
837 | consolidated free block. We must set its backpointer to the | |||||||
838 | head of the consolidated free block. We know the next block | |||||||
839 | must be an allocated block because the process of recombination | |||||||
840 | guarantees that two free blocks will never be contiguous in | |||||||
841 | memory. */ | |||||||
842 | bn = BFH(((char *)b) + b->bh.bb.bsize)((bfhead_t *)(((char *)b) + b->bh.bb.bsize)); | |||||||
843 | } | |||||||
844 | #ifdef FreeWipe | |||||||
845 | (void)memset(((char *)b) + sizeof(bfhead_t), 0x55, | |||||||
846 | (size_t)(b->bh.bb.bsize - sizeof(bfhead_t))); | |||||||
847 | #endif | |||||||
848 | KMP_DEBUG_ASSERT(bn->bh.bb.bsize < 0)((bn->bh.bb.bsize < 0) ? 0 : __kmp_debug_assert("bn->bh.bb.bsize < 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 848)); | |||||||
849 | ||||||||
850 | /* The next buffer is allocated. Set the backpointer in it to point | |||||||
851 | to this buffer; the previous free buffer in memory. */ | |||||||
852 | ||||||||
853 | bn->bh.bb.prevfree = b->bh.bb.bsize; | |||||||
854 | ||||||||
855 | /* If a block-release function is defined, and this free buffer | |||||||
856 | constitutes the entire block, release it. Note that pool_len | |||||||
857 | is defined in such a way that the test will fail unless all | |||||||
858 | pool blocks are the same size. */ | |||||||
859 | if (thr->relfcn != 0 && | |||||||
860 | b->bh.bb.bsize == (bufsize)(thr->pool_len - sizeof(bhead_t))) { | |||||||
861 | #if BufStats1 | |||||||
862 | if (thr->numpblk != | |||||||
863 | 1) { /* Do not release the last buffer until finalization time */ | |||||||
864 | #endif | |||||||
865 | ||||||||
866 | KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0)((b->bh.bb.prevfree == 0) ? 0 : __kmp_debug_assert("b->bh.bb.prevfree == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 866)); | |||||||
867 | KMP_DEBUG_ASSERT(BH((char *)b + b->bh.bb.bsize)->bb.bsize == ESent)((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.bsize == ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.bsize == ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 867)); | |||||||
868 | KMP_DEBUG_ASSERT(BH((char *)b + b->bh.bb.bsize)->bb.prevfree ==((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 869)) | |||||||
869 | b->bh.bb.bsize)((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 869)); | |||||||
870 | ||||||||
871 | /* Unlink the buffer from the free list */ | |||||||
872 | __kmp_bget_remove_from_freelist(b); | |||||||
873 | ||||||||
874 | KE_TRACE(10, ("%%%%%% FREE( %p )\n", (void *)b))if (kmp_e_debug >= 10) { __kmp_debug_printf ("%%%%%% FREE( %p )\n" , (void *)b); }; | |||||||
875 | ||||||||
876 | (*thr->relfcn)(b); | |||||||
877 | #if BufStats1 | |||||||
878 | thr->numprel++; /* Nr of expansion block releases */ | |||||||
879 | thr->numpblk--; /* Total number of blocks */ | |||||||
880 | KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel)((thr->numpblk == thr->numpget - thr->numprel) ? 0 : __kmp_debug_assert("thr->numpblk == thr->numpget - thr->numprel" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 880)); | |||||||
881 | ||||||||
882 | // avoid leaving stale last_pool pointer around if it is being dealloced | |||||||
883 | if (thr->last_pool == b) | |||||||
884 | thr->last_pool = 0; | |||||||
885 | } else { | |||||||
886 | thr->last_pool = b; | |||||||
887 | } | |||||||
888 | #endif /* BufStats */ | |||||||
889 | } | |||||||
890 | } | |||||||
891 | ||||||||
892 | /* BECTL -- Establish automatic pool expansion control */ | |||||||
893 | static void bectl(kmp_info_t *th, bget_compact_t compact, | |||||||
894 | bget_acquire_t acquire, bget_release_t release, | |||||||
895 | bufsize pool_incr) { | |||||||
896 | thr_data_t *thr = get_thr_data(th); | |||||||
897 | ||||||||
898 | thr->compfcn = compact; | |||||||
899 | thr->acqfcn = acquire; | |||||||
900 | thr->relfcn = release; | |||||||
901 | thr->exp_incr = pool_incr; | |||||||
902 | } | |||||||
903 | ||||||||
904 | /* BPOOL -- Add a region of memory to the buffer pool. */ | |||||||
905 | static void bpool(kmp_info_t *th, void *buf, bufsize len) { | |||||||
906 | /* int bin = 0; */ | |||||||
907 | thr_data_t *thr = get_thr_data(th); | |||||||
908 | bfhead_t *b = BFH(buf)((bfhead_t *)(buf)); | |||||||
909 | bhead_t *bn; | |||||||
910 | ||||||||
911 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
912 | ||||||||
913 | #ifdef SizeQuant8 | |||||||
914 | len &= ~(SizeQuant8 - 1); | |||||||
915 | #endif | |||||||
916 | if (thr->pool_len == 0) { | |||||||
917 | thr->pool_len = len; | |||||||
918 | } else if (len != thr->pool_len) { | |||||||
919 | thr->pool_len = -1; | |||||||
920 | } | |||||||
921 | #if BufStats1 | |||||||
922 | thr->numpget++; /* Number of block acquisitions */ | |||||||
923 | thr->numpblk++; /* Number of blocks total */ | |||||||
924 | KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel)((thr->numpblk == thr->numpget - thr->numprel) ? 0 : __kmp_debug_assert("thr->numpblk == thr->numpget - thr->numprel" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 924)); | |||||||
925 | #endif /* BufStats */ | |||||||
926 | ||||||||
927 | /* Since the block is initially occupied by a single free buffer, | |||||||
928 | it had better not be (much) larger than the largest buffer | |||||||
929 | whose size we can store in bhead.bb.bsize. */ | |||||||
930 | KMP_DEBUG_ASSERT(len - sizeof(bhead_t) <= -((bufsize)ESent + 1))((len - sizeof(bhead_t) <= -((bufsize)((bufsize)(-(((((bufsize )1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2)) + 1)) ? 0 : __kmp_debug_assert("len - sizeof(bhead_t) <= -((bufsize)((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2)) + 1)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 930)); | |||||||
931 | ||||||||
932 | /* Clear the backpointer at the start of the block to indicate that | |||||||
933 | there is no free block prior to this one. That blocks | |||||||
934 | recombination when the first block in memory is released. */ | |||||||
935 | b->bh.bb.prevfree = 0; | |||||||
936 | ||||||||
937 | /* Create a dummy allocated buffer at the end of the pool. This dummy | |||||||
938 | buffer is seen when a buffer at the end of the pool is released and | |||||||
939 | blocks recombination of the last buffer with the dummy buffer at | |||||||
940 | the end. The length in the dummy buffer is set to the largest | |||||||
941 | negative number to denote the end of the pool for diagnostic | |||||||
942 | routines (this specific value is not counted on by the actual | |||||||
943 | allocation and release functions). */ | |||||||
944 | len -= sizeof(bhead_t); | |||||||
945 | b->bh.bb.bsize = (bufsize)len; | |||||||
946 | /* Set the owner of this buffer */ | |||||||
947 | TCW_PTR(b->bh.bb.bthr,((b->bh.bb.bthr)) = (((kmp_info_t *)((kmp_uintptr_t)th | 1 ))) | |||||||
948 | (kmp_info_t *)((kmp_uintptr_t)th |((b->bh.bb.bthr)) = (((kmp_info_t *)((kmp_uintptr_t)th | 1 ))) | |||||||
949 | 1))((b->bh.bb.bthr)) = (((kmp_info_t *)((kmp_uintptr_t)th | 1 ))); // mark the buffer as allocated address | |||||||
950 | ||||||||
951 | /* Chain the new block to the free list. */ | |||||||
952 | __kmp_bget_insert_into_freelist(thr, b); | |||||||
953 | ||||||||
954 | #ifdef FreeWipe | |||||||
955 | (void)memset(((char *)b) + sizeof(bfhead_t), 0x55, | |||||||
956 | (size_t)(len - sizeof(bfhead_t))); | |||||||
957 | #endif | |||||||
958 | bn = BH(((char *)b) + len)((bhead_t *)(((char *)b) + len)); | |||||||
959 | bn->bb.prevfree = (bufsize)len; | |||||||
960 | /* Definition of ESent assumes two's complement! */ | |||||||
961 | KMP_DEBUG_ASSERT((~0) == -1 && (bn != 0))(((~0) == -1 && (bn != 0)) ? 0 : __kmp_debug_assert("(~0) == -1 && (bn != 0)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 961)); | |||||||
962 | ||||||||
963 | bn->bb.bsize = ESent((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2)); | |||||||
964 | } | |||||||
965 | ||||||||
966 | /* BFREED -- Dump the free lists for this thread. */ | |||||||
967 | static void bfreed(kmp_info_t *th) { | |||||||
968 | int bin = 0, count = 0; | |||||||
969 | int gtid = __kmp_gtid_from_thread(th)((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 969)), (th)->th.th_info.ds.ds_gtid); | |||||||
| ||||||||
970 | thr_data_t *thr = get_thr_data(th); | |||||||
971 | ||||||||
972 | #if BufStats1 | |||||||
973 | __kmp_printf_no_lock("__kmp_printpool: T#%d total=%" KMP_UINT64_SPEC"llu" | |||||||
974 | " get=%" KMP_INT64_SPEC"lld" " rel=%" KMP_INT64_SPEC"lld" | |||||||
975 | " pblk=%" KMP_INT64_SPEC"lld" " pget=%" KMP_INT64_SPEC"lld" | |||||||
976 | " prel=%" KMP_INT64_SPEC"lld" " dget=%" KMP_INT64_SPEC"lld" | |||||||
977 | " drel=%" KMP_INT64_SPEC"lld" "\n", | |||||||
978 | gtid, (kmp_uint64)thr->totalloc, (kmp_int64)thr->numget, | |||||||
979 | (kmp_int64)thr->numrel, (kmp_int64)thr->numpblk, | |||||||
980 | (kmp_int64)thr->numpget, (kmp_int64)thr->numprel, | |||||||
981 | (kmp_int64)thr->numdget, (kmp_int64)thr->numdrel); | |||||||
982 | #endif | |||||||
983 | ||||||||
984 | for (bin = 0; bin < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++bin) { | |||||||
985 | bfhead_t *b; | |||||||
986 | ||||||||
987 | for (b = thr->freelist[bin].ql.flink; b != &thr->freelist[bin]; | |||||||
988 | b = b->ql.flink) { | |||||||
989 | bufsize bs = b->bh.bb.bsize; | |||||||
990 | ||||||||
991 | KMP_DEBUG_ASSERT(b->ql.blink->ql.flink == b)((b->ql.blink->ql.flink == b) ? 0 : __kmp_debug_assert( "b->ql.blink->ql.flink == b", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 991)); | |||||||
992 | KMP_DEBUG_ASSERT(b->ql.flink->ql.blink == b)((b->ql.flink->ql.blink == b) ? 0 : __kmp_debug_assert( "b->ql.flink->ql.blink == b", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 992)); | |||||||
993 | KMP_DEBUG_ASSERT(bs > 0)((bs > 0) ? 0 : __kmp_debug_assert("bs > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 993)); | |||||||
994 | ||||||||
995 | count += 1; | |||||||
996 | ||||||||
997 | __kmp_printf_no_lock( | |||||||
998 | "__kmp_printpool: T#%d Free block: 0x%p size %6ld bytes.\n", gtid, b, | |||||||
999 | (long)bs); | |||||||
1000 | #ifdef FreeWipe | |||||||
1001 | { | |||||||
1002 | char *lerr = ((char *)b) + sizeof(bfhead_t); | |||||||
1003 | if ((bs > sizeof(bfhead_t)) && | |||||||
1004 | ((*lerr != 0x55) || | |||||||
1005 | (memcmp(lerr, lerr + 1, (size_t)(bs - (sizeof(bfhead_t) + 1))) != | |||||||
1006 | 0))) { | |||||||
1007 | __kmp_printf_no_lock("__kmp_printpool: T#%d (Contents of above " | |||||||
1008 | "free block have been overstored.)\n", | |||||||
1009 | gtid); | |||||||
1010 | } | |||||||
1011 | } | |||||||
1012 | #endif | |||||||
1013 | } | |||||||
1014 | } | |||||||
1015 | ||||||||
1016 | if (count == 0) | |||||||
1017 | __kmp_printf_no_lock("__kmp_printpool: T#%d No free blocks\n", gtid); | |||||||
1018 | } | |||||||
1019 | ||||||||
1020 | #ifdef KMP_DEBUG1 | |||||||
1021 | ||||||||
1022 | #if BufStats1 | |||||||
1023 | ||||||||
1024 | /* BSTATS -- Return buffer allocation free space statistics. */ | |||||||
1025 | static void bstats(kmp_info_t *th, bufsize *curalloc, bufsize *totfree, | |||||||
1026 | bufsize *maxfree, long *nget, long *nrel) { | |||||||
1027 | int bin = 0; | |||||||
1028 | thr_data_t *thr = get_thr_data(th); | |||||||
1029 | ||||||||
1030 | *nget = thr->numget; | |||||||
1031 | *nrel = thr->numrel; | |||||||
1032 | *curalloc = (bufsize)thr->totalloc; | |||||||
1033 | *totfree = 0; | |||||||
1034 | *maxfree = -1; | |||||||
1035 | ||||||||
1036 | for (bin = 0; bin < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++bin) { | |||||||
1037 | bfhead_t *b = thr->freelist[bin].ql.flink; | |||||||
1038 | ||||||||
1039 | while (b != &thr->freelist[bin]) { | |||||||
1040 | KMP_DEBUG_ASSERT(b->bh.bb.bsize > 0)((b->bh.bb.bsize > 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize > 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1040)); | |||||||
1041 | *totfree += b->bh.bb.bsize; | |||||||
1042 | if (b->bh.bb.bsize > *maxfree) { | |||||||
1043 | *maxfree = b->bh.bb.bsize; | |||||||
1044 | } | |||||||
1045 | b = b->ql.flink; /* Link to next buffer */ | |||||||
1046 | } | |||||||
1047 | } | |||||||
1048 | } | |||||||
1049 | ||||||||
1050 | /* BSTATSE -- Return extended statistics */ | |||||||
1051 | static void bstatse(kmp_info_t *th, bufsize *pool_incr, long *npool, | |||||||
1052 | long *npget, long *nprel, long *ndget, long *ndrel) { | |||||||
1053 | thr_data_t *thr = get_thr_data(th); | |||||||
1054 | ||||||||
1055 | *pool_incr = (thr->pool_len < 0) ? -thr->exp_incr : thr->exp_incr; | |||||||
1056 | *npool = thr->numpblk; | |||||||
1057 | *npget = thr->numpget; | |||||||
1058 | *nprel = thr->numprel; | |||||||
1059 | *ndget = thr->numdget; | |||||||
1060 | *ndrel = thr->numdrel; | |||||||
1061 | } | |||||||
1062 | ||||||||
1063 | #endif /* BufStats */ | |||||||
1064 | ||||||||
1065 | /* BUFDUMP -- Dump the data in a buffer. This is called with the user | |||||||
1066 | data pointer, and backs up to the buffer header. It will | |||||||
1067 | dump either a free block or an allocated one. */ | |||||||
1068 | static void bufdump(kmp_info_t *th, void *buf) { | |||||||
1069 | bfhead_t *b; | |||||||
1070 | unsigned char *bdump; | |||||||
1071 | bufsize bdlen; | |||||||
1072 | ||||||||
1073 | b = BFH(((char *)buf) - sizeof(bhead_t))((bfhead_t *)(((char *)buf) - sizeof(bhead_t))); | |||||||
1074 | KMP_DEBUG_ASSERT(b->bh.bb.bsize != 0)((b->bh.bb.bsize != 0) ? 0 : __kmp_debug_assert("b->bh.bb.bsize != 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1074)); | |||||||
1075 | if (b->bh.bb.bsize < 0) { | |||||||
1076 | bdump = (unsigned char *)buf; | |||||||
1077 | bdlen = (-b->bh.bb.bsize) - (bufsize)sizeof(bhead_t); | |||||||
1078 | } else { | |||||||
1079 | bdump = (unsigned char *)(((char *)b) + sizeof(bfhead_t)); | |||||||
1080 | bdlen = b->bh.bb.bsize - (bufsize)sizeof(bfhead_t); | |||||||
1081 | } | |||||||
1082 | ||||||||
1083 | while (bdlen > 0) { | |||||||
1084 | int i, dupes = 0; | |||||||
1085 | bufsize l = bdlen; | |||||||
1086 | char bhex[50], bascii[20]; | |||||||
1087 | ||||||||
1088 | if (l > 16) { | |||||||
1089 | l = 16; | |||||||
1090 | } | |||||||
1091 | ||||||||
1092 | for (i = 0; i < l; i++) { | |||||||
1093 | (void)KMP_SNPRINTFsnprintf(bhex + i * 3, sizeof(bhex) - i * 3, "%02X ", bdump[i]); | |||||||
1094 | if (bdump[i] > 0x20 && bdump[i] < 0x7F) | |||||||
1095 | bascii[i] = bdump[i]; | |||||||
1096 | else | |||||||
1097 | bascii[i] = ' '; | |||||||
1098 | } | |||||||
1099 | bascii[i] = 0; | |||||||
1100 | (void)__kmp_printf_no_lock("%-48s %s\n", bhex, bascii); | |||||||
1101 | bdump += l; | |||||||
1102 | bdlen -= l; | |||||||
1103 | while ((bdlen > 16) && | |||||||
1104 | (memcmp((char *)(bdump - 16), (char *)bdump, 16) == 0)) { | |||||||
1105 | dupes++; | |||||||
1106 | bdump += 16; | |||||||
1107 | bdlen -= 16; | |||||||
1108 | } | |||||||
1109 | if (dupes > 1) { | |||||||
1110 | (void)__kmp_printf_no_lock( | |||||||
1111 | " (%d lines [%d bytes] identical to above line skipped)\n", dupes, | |||||||
1112 | dupes * 16); | |||||||
1113 | } else if (dupes == 1) { | |||||||
1114 | bdump -= 16; | |||||||
1115 | bdlen += 16; | |||||||
1116 | } | |||||||
1117 | } | |||||||
1118 | } | |||||||
1119 | ||||||||
1120 | /* BPOOLD -- Dump a buffer pool. The buffer headers are always listed. | |||||||
1121 | If DUMPALLOC is nonzero, the contents of allocated buffers | |||||||
1122 | are dumped. If DUMPFREE is nonzero, free blocks are | |||||||
1123 | dumped as well. If FreeWipe checking is enabled, free | |||||||
1124 | blocks which have been clobbered will always be dumped. */ | |||||||
1125 | static void bpoold(kmp_info_t *th, void *buf, int dumpalloc, int dumpfree) { | |||||||
1126 | bfhead_t *b = BFH((char *)buf - sizeof(bhead_t))((bfhead_t *)((char *)buf - sizeof(bhead_t))); | |||||||
1127 | ||||||||
1128 | while (b->bh.bb.bsize != ESent((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))) { | |||||||
1129 | bufsize bs = b->bh.bb.bsize; | |||||||
1130 | ||||||||
1131 | if (bs < 0) { | |||||||
1132 | bs = -bs; | |||||||
1133 | (void)__kmp_printf_no_lock("Allocated buffer: size %6ld bytes.\n", | |||||||
1134 | (long)bs); | |||||||
1135 | if (dumpalloc) { | |||||||
1136 | bufdump(th, (void *)(((char *)b) + sizeof(bhead_t))); | |||||||
1137 | } | |||||||
1138 | } else { | |||||||
1139 | const char *lerr = ""; | |||||||
1140 | ||||||||
1141 | KMP_DEBUG_ASSERT(bs > 0)((bs > 0) ? 0 : __kmp_debug_assert("bs > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1141)); | |||||||
1142 | if ((b->ql.blink->ql.flink != b) || (b->ql.flink->ql.blink != b)) { | |||||||
1143 | lerr = " (Bad free list links)"; | |||||||
1144 | } | |||||||
1145 | (void)__kmp_printf_no_lock("Free block: size %6ld bytes.%s\n", | |||||||
1146 | (long)bs, lerr); | |||||||
1147 | #ifdef FreeWipe | |||||||
1148 | lerr = ((char *)b) + sizeof(bfhead_t); | |||||||
1149 | if ((bs > sizeof(bfhead_t)) && | |||||||
1150 | ((*lerr != 0x55) || | |||||||
1151 | (memcmp(lerr, lerr + 1, (size_t)(bs - (sizeof(bfhead_t) + 1))) != | |||||||
1152 | 0))) { | |||||||
1153 | (void)__kmp_printf_no_lock( | |||||||
1154 | "(Contents of above free block have been overstored.)\n"); | |||||||
1155 | bufdump(th, (void *)(((char *)b) + sizeof(bhead_t))); | |||||||
1156 | } else | |||||||
1157 | #endif | |||||||
1158 | if (dumpfree) { | |||||||
1159 | bufdump(th, (void *)(((char *)b) + sizeof(bhead_t))); | |||||||
1160 | } | |||||||
1161 | } | |||||||
1162 | b = BFH(((char *)b) + bs)((bfhead_t *)(((char *)b) + bs)); | |||||||
1163 | } | |||||||
1164 | } | |||||||
1165 | ||||||||
1166 | /* BPOOLV -- Validate a buffer pool. */ | |||||||
1167 | static int bpoolv(kmp_info_t *th, void *buf) { | |||||||
1168 | bfhead_t *b = BFH(buf)((bfhead_t *)(buf)); | |||||||
1169 | ||||||||
1170 | while (b->bh.bb.bsize != ESent((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))) { | |||||||
1171 | bufsize bs = b->bh.bb.bsize; | |||||||
1172 | ||||||||
1173 | if (bs < 0) { | |||||||
1174 | bs = -bs; | |||||||
1175 | } else { | |||||||
1176 | #ifdef FreeWipe | |||||||
1177 | char *lerr = ""; | |||||||
1178 | #endif | |||||||
1179 | ||||||||
1180 | KMP_DEBUG_ASSERT(bs > 0)((bs > 0) ? 0 : __kmp_debug_assert("bs > 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1180)); | |||||||
1181 | if (bs <= 0) { | |||||||
1182 | return 0; | |||||||
1183 | } | |||||||
1184 | if ((b->ql.blink->ql.flink != b) || (b->ql.flink->ql.blink != b)) { | |||||||
1185 | (void)__kmp_printf_no_lock( | |||||||
1186 | "Free block: size %6ld bytes. (Bad free list links)\n", (long)bs); | |||||||
1187 | KMP_DEBUG_ASSERT(0)((0) ? 0 : __kmp_debug_assert("0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1187)); | |||||||
1188 | return 0; | |||||||
1189 | } | |||||||
1190 | #ifdef FreeWipe | |||||||
1191 | lerr = ((char *)b) + sizeof(bfhead_t); | |||||||
1192 | if ((bs > sizeof(bfhead_t)) && | |||||||
1193 | ((*lerr != 0x55) || | |||||||
1194 | (memcmp(lerr, lerr + 1, (size_t)(bs - (sizeof(bfhead_t) + 1))) != | |||||||
1195 | 0))) { | |||||||
1196 | (void)__kmp_printf_no_lock( | |||||||
1197 | "(Contents of above free block have been overstored.)\n"); | |||||||
1198 | bufdump(th, (void *)(((char *)b) + sizeof(bhead_t))); | |||||||
1199 | KMP_DEBUG_ASSERT(0)((0) ? 0 : __kmp_debug_assert("0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1199)); | |||||||
1200 | return 0; | |||||||
1201 | } | |||||||
1202 | #endif /* FreeWipe */ | |||||||
1203 | } | |||||||
1204 | b = BFH(((char *)b) + bs)((bfhead_t *)(((char *)b) + bs)); | |||||||
1205 | } | |||||||
1206 | return 1; | |||||||
1207 | } | |||||||
1208 | ||||||||
1209 | #endif /* KMP_DEBUG */ | |||||||
1210 | ||||||||
1211 | void __kmp_initialize_bget(kmp_info_t *th) { | |||||||
1212 | KMP_DEBUG_ASSERT(SizeQuant >= sizeof(void *) && (th != 0))((8 >= sizeof(void *) && (th != 0)) ? 0 : __kmp_debug_assert ("8 >= sizeof(void *) && (th != 0)", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1212)); | |||||||
1213 | ||||||||
1214 | set_thr_data(th); | |||||||
1215 | ||||||||
1216 | bectl(th, (bget_compact_t)0, (bget_acquire_t)malloc, (bget_release_t)free, | |||||||
1217 | (bufsize)__kmp_malloc_pool_incr); | |||||||
1218 | } | |||||||
1219 | ||||||||
1220 | void __kmp_finalize_bget(kmp_info_t *th) { | |||||||
1221 | thr_data_t *thr; | |||||||
1222 | bfhead_t *b; | |||||||
1223 | ||||||||
1224 | KMP_DEBUG_ASSERT(th != 0)((th != 0) ? 0 : __kmp_debug_assert("th != 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1224)); | |||||||
1225 | ||||||||
1226 | #if BufStats1 | |||||||
1227 | thr = (thr_data_t *)th->th.th_local.bget_data; | |||||||
1228 | KMP_DEBUG_ASSERT(thr != NULL)((thr != __null) ? 0 : __kmp_debug_assert("thr != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1228)); | |||||||
1229 | b = thr->last_pool; | |||||||
1230 | ||||||||
1231 | /* If a block-release function is defined, and this free buffer constitutes | |||||||
1232 | the entire block, release it. Note that pool_len is defined in such a way | |||||||
1233 | that the test will fail unless all pool blocks are the same size. */ | |||||||
1234 | ||||||||
1235 | // Deallocate the last pool if one exists because we no longer do it in brel() | |||||||
1236 | if (thr->relfcn != 0 && b != 0 && thr->numpblk != 0 && | |||||||
1237 | b->bh.bb.bsize == (bufsize)(thr->pool_len - sizeof(bhead_t))) { | |||||||
1238 | KMP_DEBUG_ASSERT(b->bh.bb.prevfree == 0)((b->bh.bb.prevfree == 0) ? 0 : __kmp_debug_assert("b->bh.bb.prevfree == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1238)); | |||||||
1239 | KMP_DEBUG_ASSERT(BH((char *)b + b->bh.bb.bsize)->bb.bsize == ESent)((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.bsize == ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.bsize == ((bufsize)(-(((((bufsize)1) << ((int)sizeof(bufsize) * 8 - 2)) - 1) * 2) - 2))" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1239)); | |||||||
1240 | KMP_DEBUG_ASSERT(BH((char *)b + b->bh.bb.bsize)->bb.prevfree ==((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1241)) | |||||||
1241 | b->bh.bb.bsize)((((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize) ? 0 : __kmp_debug_assert("((bhead_t *)((char *)b + b->bh.bb.bsize))->bb.prevfree == b->bh.bb.bsize" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1241)); | |||||||
1242 | ||||||||
1243 | /* Unlink the buffer from the free list */ | |||||||
1244 | __kmp_bget_remove_from_freelist(b); | |||||||
1245 | ||||||||
1246 | KE_TRACE(10, ("%%%%%% FREE( %p )\n", (void *)b))if (kmp_e_debug >= 10) { __kmp_debug_printf ("%%%%%% FREE( %p )\n" , (void *)b); }; | |||||||
1247 | ||||||||
1248 | (*thr->relfcn)(b); | |||||||
1249 | thr->numprel++; /* Nr of expansion block releases */ | |||||||
1250 | thr->numpblk--; /* Total number of blocks */ | |||||||
1251 | KMP_DEBUG_ASSERT(thr->numpblk == thr->numpget - thr->numprel)((thr->numpblk == thr->numpget - thr->numprel) ? 0 : __kmp_debug_assert("thr->numpblk == thr->numpget - thr->numprel" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1251)); | |||||||
1252 | } | |||||||
1253 | #endif /* BufStats */ | |||||||
1254 | ||||||||
1255 | /* Deallocate bget_data */ | |||||||
1256 | if (th->th.th_local.bget_data != NULL__null) { | |||||||
1257 | __kmp_free(th->th.th_local.bget_data)___kmp_free((th->th.th_local.bget_data), "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1257); | |||||||
1258 | th->th.th_local.bget_data = NULL__null; | |||||||
1259 | } | |||||||
1260 | } | |||||||
1261 | ||||||||
1262 | void kmpc_set_poolsize(size_t size) { | |||||||
1263 | bectl(__kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1263)), __kmp_threads[(__kmp_get_global_thread_id())])), (bget_compact_t)0, (bget_acquire_t)malloc, | |||||||
1264 | (bget_release_t)free, (bufsize)size); | |||||||
1265 | } | |||||||
1266 | ||||||||
1267 | size_t kmpc_get_poolsize(void) { | |||||||
1268 | thr_data_t *p; | |||||||
1269 | ||||||||
1270 | p = get_thr_data(__kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1270)), __kmp_threads[(__kmp_get_global_thread_id())]))); | |||||||
1271 | ||||||||
1272 | return p->exp_incr; | |||||||
1273 | } | |||||||
1274 | ||||||||
1275 | void kmpc_set_poolmode(int mode) { | |||||||
1276 | thr_data_t *p; | |||||||
1277 | ||||||||
1278 | if (mode == bget_mode_fifo || mode == bget_mode_lifo || | |||||||
1279 | mode == bget_mode_best) { | |||||||
1280 | p = get_thr_data(__kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1280)), __kmp_threads[(__kmp_get_global_thread_id())]))); | |||||||
1281 | p->mode = (bget_mode_t)mode; | |||||||
1282 | } | |||||||
1283 | } | |||||||
1284 | ||||||||
1285 | int kmpc_get_poolmode(void) { | |||||||
1286 | thr_data_t *p; | |||||||
1287 | ||||||||
1288 | p = get_thr_data(__kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1288)), __kmp_threads[(__kmp_get_global_thread_id())]))); | |||||||
1289 | ||||||||
1290 | return p->mode; | |||||||
1291 | } | |||||||
1292 | ||||||||
1293 | void kmpc_get_poolstat(size_t *maxmem, size_t *allmem) { | |||||||
1294 | kmp_info_t *th = __kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1294)), __kmp_threads[(__kmp_get_global_thread_id())])); | |||||||
1295 | bufsize a, b; | |||||||
1296 | ||||||||
1297 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
1298 | ||||||||
1299 | bcheck(th, &a, &b); | |||||||
1300 | ||||||||
1301 | *maxmem = a; | |||||||
1302 | *allmem = b; | |||||||
1303 | } | |||||||
1304 | ||||||||
1305 | void kmpc_poolprint(void) { | |||||||
1306 | kmp_info_t *th = __kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1306)), __kmp_threads[(__kmp_get_global_thread_id())])); | |||||||
1307 | ||||||||
1308 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
1309 | ||||||||
1310 | bfreed(th); | |||||||
| ||||||||
1311 | } | |||||||
1312 | ||||||||
1313 | #endif // #if KMP_USE_BGET | |||||||
1314 | ||||||||
1315 | void *kmpc_malloc(size_t size) { | |||||||
1316 | void *ptr; | |||||||
1317 | ptr = bget(__kmp_entry_thread(), (bufsize)(size + sizeof(ptr))); | |||||||
1318 | if (ptr != NULL__null) { | |||||||
1319 | // save allocated pointer just before one returned to user | |||||||
1320 | *(void **)ptr = ptr; | |||||||
1321 | ptr = (void **)ptr + 1; | |||||||
1322 | } | |||||||
1323 | return ptr; | |||||||
1324 | } | |||||||
1325 | ||||||||
1326 | #define IS_POWER_OF_TWO(n)(((n) & ((n)-1)) == 0) (((n) & ((n)-1)) == 0) | |||||||
1327 | ||||||||
1328 | void *kmpc_aligned_malloc(size_t size, size_t alignment) { | |||||||
1329 | void *ptr; | |||||||
1330 | void *ptr_allocated; | |||||||
1331 | KMP_DEBUG_ASSERT(alignment < 32 * 1024)((alignment < 32 * 1024) ? 0 : __kmp_debug_assert("alignment < 32 * 1024" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1331)); // Alignment should not be too big | |||||||
1332 | if (!IS_POWER_OF_TWO(alignment)(((alignment) & ((alignment)-1)) == 0)) { | |||||||
1333 | // AC: do we need to issue a warning here? | |||||||
1334 | errno(*__errno_location ()) = EINVAL22; | |||||||
1335 | return NULL__null; | |||||||
1336 | } | |||||||
1337 | size = size + sizeof(void *) + alignment; | |||||||
1338 | ptr_allocated = bget(__kmp_entry_thread(), (bufsize)size); | |||||||
1339 | if (ptr_allocated != NULL__null) { | |||||||
1340 | // save allocated pointer just before one returned to user | |||||||
1341 | ptr = (void *)(((kmp_uintptr_t)ptr_allocated + sizeof(void *) + alignment) & | |||||||
1342 | ~(alignment - 1)); | |||||||
1343 | *((void **)ptr - 1) = ptr_allocated; | |||||||
1344 | } else { | |||||||
1345 | ptr = NULL__null; | |||||||
1346 | } | |||||||
1347 | return ptr; | |||||||
1348 | } | |||||||
1349 | ||||||||
1350 | void *kmpc_calloc(size_t nelem, size_t elsize) { | |||||||
1351 | void *ptr; | |||||||
1352 | ptr = bgetz(__kmp_entry_thread(), (bufsize)(nelem * elsize + sizeof(ptr))); | |||||||
1353 | if (ptr != NULL__null) { | |||||||
1354 | // save allocated pointer just before one returned to user | |||||||
1355 | *(void **)ptr = ptr; | |||||||
1356 | ptr = (void **)ptr + 1; | |||||||
1357 | } | |||||||
1358 | return ptr; | |||||||
1359 | } | |||||||
1360 | ||||||||
1361 | void *kmpc_realloc(void *ptr, size_t size) { | |||||||
1362 | void *result = NULL__null; | |||||||
1363 | if (ptr == NULL__null) { | |||||||
1364 | // If pointer is NULL, realloc behaves like malloc. | |||||||
1365 | result = bget(__kmp_entry_thread(), (bufsize)(size + sizeof(ptr))); | |||||||
1366 | // save allocated pointer just before one returned to user | |||||||
1367 | if (result != NULL__null) { | |||||||
1368 | *(void **)result = result; | |||||||
1369 | result = (void **)result + 1; | |||||||
1370 | } | |||||||
1371 | } else if (size == 0) { | |||||||
1372 | // If size is 0, realloc behaves like free. | |||||||
1373 | // The thread must be registered by the call to kmpc_malloc() or | |||||||
1374 | // kmpc_calloc() before. | |||||||
1375 | // So it should be safe to call __kmp_get_thread(), not | |||||||
1376 | // __kmp_entry_thread(). | |||||||
1377 | KMP_ASSERT(*((void **)ptr - 1))((*((void **)ptr - 1)) ? 0 : __kmp_debug_assert("*((void **)ptr - 1)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1377)); | |||||||
1378 | brel(__kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1378)), __kmp_threads[(__kmp_get_global_thread_id())])), *((void **)ptr - 1)); | |||||||
1379 | } else { | |||||||
1380 | result = bgetr(__kmp_entry_thread(), *((void **)ptr - 1), | |||||||
1381 | (bufsize)(size + sizeof(ptr))); | |||||||
1382 | if (result != NULL__null) { | |||||||
1383 | *(void **)result = result; | |||||||
1384 | result = (void **)result + 1; | |||||||
1385 | } | |||||||
1386 | } | |||||||
1387 | return result; | |||||||
1388 | } | |||||||
1389 | ||||||||
1390 | // NOTE: the library must have already been initialized by a previous allocate | |||||||
1391 | void kmpc_free(void *ptr) { | |||||||
1392 | if (!__kmp_init_serial) { | |||||||
1393 | return; | |||||||
1394 | } | |||||||
1395 | if (ptr != NULL__null) { | |||||||
1396 | kmp_info_t *th = __kmp_get_thread()(((((__kmp_get_global_thread_id()) >= 0) ? 0 : __kmp_debug_assert ("(__kmp_get_global_thread_id()) >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1396)), __kmp_threads[(__kmp_get_global_thread_id())])); | |||||||
1397 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
1398 | // extract allocated pointer and free it | |||||||
1399 | KMP_ASSERT(*((void **)ptr - 1))((*((void **)ptr - 1)) ? 0 : __kmp_debug_assert("*((void **)ptr - 1)" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1399)); | |||||||
1400 | brel(th, *((void **)ptr - 1)); | |||||||
1401 | } | |||||||
1402 | } | |||||||
1403 | ||||||||
1404 | void *___kmp_thread_malloc(kmp_info_t *th, size_t size KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1405 | void *ptr; | |||||||
1406 | KE_TRACE(30, ("-> __kmp_thread_malloc( %p, %d ) called from %s:%d\n", th,if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_malloc( %p, %d ) called from %s:%d\n" , th, (int)size , _file_, _line_); } | |||||||
1407 | (int)size KMP_SRC_LOC_PARM))if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_malloc( %p, %d ) called from %s:%d\n" , th, (int)size , _file_, _line_); }; | |||||||
1408 | ptr = bget(th, (bufsize)size); | |||||||
1409 | KE_TRACE(30, ("<- __kmp_thread_malloc() returns %p\n", ptr))if (kmp_e_debug >= 30) { __kmp_debug_printf ("<- __kmp_thread_malloc() returns %p\n" , ptr); }; | |||||||
1410 | return ptr; | |||||||
1411 | } | |||||||
1412 | ||||||||
1413 | void *___kmp_thread_calloc(kmp_info_t *th, size_t nelem, | |||||||
1414 | size_t elsize KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1415 | void *ptr; | |||||||
1416 | KE_TRACE(30, ("-> __kmp_thread_calloc( %p, %d, %d ) called from %s:%d\n", th,if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_calloc( %p, %d, %d ) called from %s:%d\n" , th, (int)nelem, (int)elsize , _file_, _line_); } | |||||||
1417 | (int)nelem, (int)elsize KMP_SRC_LOC_PARM))if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_calloc( %p, %d, %d ) called from %s:%d\n" , th, (int)nelem, (int)elsize , _file_, _line_); }; | |||||||
1418 | ptr = bgetz(th, (bufsize)(nelem * elsize)); | |||||||
1419 | KE_TRACE(30, ("<- __kmp_thread_calloc() returns %p\n", ptr))if (kmp_e_debug >= 30) { __kmp_debug_printf ("<- __kmp_thread_calloc() returns %p\n" , ptr); }; | |||||||
1420 | return ptr; | |||||||
1421 | } | |||||||
1422 | ||||||||
1423 | void *___kmp_thread_realloc(kmp_info_t *th, void *ptr, | |||||||
1424 | size_t size KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1425 | KE_TRACE(30, ("-> __kmp_thread_realloc( %p, %p, %d ) called from %s:%d\n", th,if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_realloc( %p, %p, %d ) called from %s:%d\n" , th, ptr, (int)size , _file_, _line_); } | |||||||
1426 | ptr, (int)size KMP_SRC_LOC_PARM))if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_realloc( %p, %p, %d ) called from %s:%d\n" , th, ptr, (int)size , _file_, _line_); }; | |||||||
1427 | ptr = bgetr(th, ptr, (bufsize)size); | |||||||
1428 | KE_TRACE(30, ("<- __kmp_thread_realloc() returns %p\n", ptr))if (kmp_e_debug >= 30) { __kmp_debug_printf ("<- __kmp_thread_realloc() returns %p\n" , ptr); }; | |||||||
1429 | return ptr; | |||||||
1430 | } | |||||||
1431 | ||||||||
1432 | void ___kmp_thread_free(kmp_info_t *th, void *ptr KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1433 | KE_TRACE(30, ("-> __kmp_thread_free( %p, %p ) called from %s:%d\n", th,if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_free( %p, %p ) called from %s:%d\n" , th, ptr , _file_, _line_); } | |||||||
1434 | ptr KMP_SRC_LOC_PARM))if (kmp_e_debug >= 30) { __kmp_debug_printf ("-> __kmp_thread_free( %p, %p ) called from %s:%d\n" , th, ptr , _file_, _line_); }; | |||||||
1435 | if (ptr != NULL__null) { | |||||||
1436 | __kmp_bget_dequeue(th); /* Release any queued buffers */ | |||||||
1437 | brel(th, ptr); | |||||||
1438 | } | |||||||
1439 | KE_TRACE(30, ("<- __kmp_thread_free()\n"))if (kmp_e_debug >= 30) { __kmp_debug_printf ("<- __kmp_thread_free()\n" ); }; | |||||||
1440 | } | |||||||
1441 | ||||||||
1442 | /* If LEAK_MEMORY is defined, __kmp_free() will *not* free memory. It causes | |||||||
1443 | memory leaks, but it may be useful for debugging memory corruptions, used | |||||||
1444 | freed pointers, etc. */ | |||||||
1445 | /* #define LEAK_MEMORY */ | |||||||
1446 | struct kmp_mem_descr { // Memory block descriptor. | |||||||
1447 | void *ptr_allocated; // Pointer returned by malloc(), subject for free(). | |||||||
1448 | size_t size_allocated; // Size of allocated memory block. | |||||||
1449 | void *ptr_aligned; // Pointer to aligned memory, to be used by client code. | |||||||
1450 | size_t size_aligned; // Size of aligned memory block. | |||||||
1451 | }; | |||||||
1452 | typedef struct kmp_mem_descr kmp_mem_descr_t; | |||||||
1453 | ||||||||
1454 | /* Allocate memory on requested boundary, fill allocated memory with 0x00. | |||||||
1455 | NULL is NEVER returned, __kmp_abort() is called in case of memory allocation | |||||||
1456 | error. Must use __kmp_free when freeing memory allocated by this routine! */ | |||||||
1457 | static void *___kmp_allocate_align(size_t size, | |||||||
1458 | size_t alignment KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1459 | /* __kmp_allocate() allocates (by call to malloc()) bigger memory block than | |||||||
1460 | requested to return properly aligned pointer. Original pointer returned | |||||||
1461 | by malloc() and size of allocated block is saved in descriptor just | |||||||
1462 | before the aligned pointer. This information used by __kmp_free() -- it | |||||||
1463 | has to pass to free() original pointer, not aligned one. | |||||||
1464 | ||||||||
1465 | +---------+------------+-----------------------------------+---------+ | |||||||
1466 | | padding | descriptor | aligned block | padding | | |||||||
1467 | +---------+------------+-----------------------------------+---------+ | |||||||
1468 | ^ ^ | |||||||
1469 | | | | |||||||
1470 | | +- Aligned pointer returned to caller | |||||||
1471 | +- Pointer returned by malloc() | |||||||
1472 | ||||||||
1473 | Aligned block is filled with zeros, paddings are filled with 0xEF. */ | |||||||
1474 | ||||||||
1475 | kmp_mem_descr_t descr; | |||||||
1476 | kmp_uintptr_t addr_allocated; // Address returned by malloc(). | |||||||
1477 | kmp_uintptr_t addr_aligned; // Aligned address to return to caller. | |||||||
1478 | kmp_uintptr_t addr_descr; // Address of memory block descriptor. | |||||||
1479 | ||||||||
1480 | KE_TRACE(25, ("-> ___kmp_allocate_align( %d, %d ) called from %s:%d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> ___kmp_allocate_align( %d, %d ) called from %s:%d\n" , (int)size, (int)alignment , _file_, _line_); } | |||||||
1481 | (int)size, (int)alignment KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> ___kmp_allocate_align( %d, %d ) called from %s:%d\n" , (int)size, (int)alignment , _file_, _line_); }; | |||||||
1482 | ||||||||
1483 | KMP_DEBUG_ASSERT(alignment < 32 * 1024)((alignment < 32 * 1024) ? 0 : __kmp_debug_assert("alignment < 32 * 1024" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1483)); // Alignment should not be too | |||||||
1484 | KMP_DEBUG_ASSERT(sizeof(void *) <= sizeof(kmp_uintptr_t))((sizeof(void *) <= sizeof(kmp_uintptr_t)) ? 0 : __kmp_debug_assert ("sizeof(void *) <= sizeof(kmp_uintptr_t)", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1484)); | |||||||
1485 | // Make sure kmp_uintptr_t is enough to store addresses. | |||||||
1486 | ||||||||
1487 | descr.size_aligned = size; | |||||||
1488 | descr.size_allocated = | |||||||
1489 | descr.size_aligned + sizeof(kmp_mem_descr_t) + alignment; | |||||||
1490 | ||||||||
1491 | #if KMP_DEBUG1 | |||||||
1492 | descr.ptr_allocated = _malloc_src_loc(descr.size_allocated, _file_, _line_)malloc((descr.size_allocated)); | |||||||
1493 | #else | |||||||
1494 | descr.ptr_allocated = malloc_src_loc(descr.size_allocated KMP_SRC_LOC_PARM)malloc((descr.size_allocated)); | |||||||
1495 | #endif | |||||||
1496 | KE_TRACE(10, (" malloc( %d ) returned %p\n", (int)descr.size_allocated,if (kmp_e_debug >= 10) { __kmp_debug_printf (" malloc( %d ) returned %p\n" , (int)descr.size_allocated, descr.ptr_allocated); } | |||||||
1497 | descr.ptr_allocated))if (kmp_e_debug >= 10) { __kmp_debug_printf (" malloc( %d ) returned %p\n" , (int)descr.size_allocated, descr.ptr_allocated); }; | |||||||
1498 | if (descr.ptr_allocated == NULL__null) { | |||||||
1499 | KMP_FATAL(OutOfHeapMemory)__kmp_fatal(__kmp_msg_format(kmp_i18n_msg_OutOfHeapMemory), __kmp_msg_null ); | |||||||
1500 | } | |||||||
1501 | ||||||||
1502 | addr_allocated = (kmp_uintptr_t)descr.ptr_allocated; | |||||||
1503 | addr_aligned = | |||||||
1504 | (addr_allocated + sizeof(kmp_mem_descr_t) + alignment) & ~(alignment - 1); | |||||||
1505 | addr_descr = addr_aligned - sizeof(kmp_mem_descr_t); | |||||||
1506 | ||||||||
1507 | descr.ptr_aligned = (void *)addr_aligned; | |||||||
1508 | ||||||||
1509 | KE_TRACE(26, (" ___kmp_allocate_align: "if (kmp_e_debug >= 26) { __kmp_debug_printf (" ___kmp_allocate_align: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1510 | "ptr_allocated=%p, size_allocated=%d, "if (kmp_e_debug >= 26) { __kmp_debug_printf (" ___kmp_allocate_align: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1511 | "ptr_aligned=%p, size_aligned=%d\n",if (kmp_e_debug >= 26) { __kmp_debug_printf (" ___kmp_allocate_align: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1512 | descr.ptr_allocated, (int)descr.size_allocated,if (kmp_e_debug >= 26) { __kmp_debug_printf (" ___kmp_allocate_align: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1513 | descr.ptr_aligned, (int)descr.size_aligned))if (kmp_e_debug >= 26) { __kmp_debug_printf (" ___kmp_allocate_align: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); }; | |||||||
1514 | ||||||||
1515 | KMP_DEBUG_ASSERT(addr_allocated <= addr_descr)((addr_allocated <= addr_descr) ? 0 : __kmp_debug_assert("addr_allocated <= addr_descr" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1515)); | |||||||
1516 | KMP_DEBUG_ASSERT(addr_descr + sizeof(kmp_mem_descr_t) == addr_aligned)((addr_descr + sizeof(kmp_mem_descr_t) == addr_aligned) ? 0 : __kmp_debug_assert("addr_descr + sizeof(kmp_mem_descr_t) == addr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1516)); | |||||||
1517 | KMP_DEBUG_ASSERT(addr_aligned + descr.size_aligned <=((addr_aligned + descr.size_aligned <= addr_allocated + descr .size_allocated) ? 0 : __kmp_debug_assert("addr_aligned + descr.size_aligned <= addr_allocated + descr.size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1518)) | |||||||
1518 | addr_allocated + descr.size_allocated)((addr_aligned + descr.size_aligned <= addr_allocated + descr .size_allocated) ? 0 : __kmp_debug_assert("addr_aligned + descr.size_aligned <= addr_allocated + descr.size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1518)); | |||||||
1519 | KMP_DEBUG_ASSERT(addr_aligned % alignment == 0)((addr_aligned % alignment == 0) ? 0 : __kmp_debug_assert("addr_aligned % alignment == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1519)); | |||||||
1520 | #ifdef KMP_DEBUG1 | |||||||
1521 | memset(descr.ptr_allocated, 0xEF, descr.size_allocated); | |||||||
1522 | // Fill allocated memory block with 0xEF. | |||||||
1523 | #endif | |||||||
1524 | memset(descr.ptr_aligned, 0x00, descr.size_aligned); | |||||||
1525 | // Fill the aligned memory block (which is intended for using by caller) with | |||||||
1526 | // 0x00. Do not | |||||||
1527 | // put this filling under KMP_DEBUG condition! Many callers expect zeroed | |||||||
1528 | // memory. (Padding | |||||||
1529 | // bytes remain filled with 0xEF in debugging library.) | |||||||
1530 | *((kmp_mem_descr_t *)addr_descr) = descr; | |||||||
1531 | ||||||||
1532 | KMP_MB(); | |||||||
1533 | ||||||||
1534 | KE_TRACE(25, ("<- ___kmp_allocate_align() returns %p\n", descr.ptr_aligned))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- ___kmp_allocate_align() returns %p\n" , descr.ptr_aligned); }; | |||||||
1535 | return descr.ptr_aligned; | |||||||
1536 | } // func ___kmp_allocate_align | |||||||
1537 | ||||||||
1538 | /* Allocate memory on cache line boundary, fill allocated memory with 0x00. | |||||||
1539 | Do not call this func directly! Use __kmp_allocate macro instead. | |||||||
1540 | NULL is NEVER returned, __kmp_abort() is called in case of memory allocation | |||||||
1541 | error. Must use __kmp_free when freeing memory allocated by this routine! */ | |||||||
1542 | void *___kmp_allocate(size_t size KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1543 | void *ptr; | |||||||
1544 | KE_TRACE(25, ("-> __kmp_allocate( %d ) called from %s:%d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_allocate( %d ) called from %s:%d\n" , (int)size , _file_, _line_); } | |||||||
1545 | (int)size KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_allocate( %d ) called from %s:%d\n" , (int)size , _file_, _line_); }; | |||||||
1546 | ptr = ___kmp_allocate_align(size, __kmp_align_alloc KMP_SRC_LOC_PARM, _file_, _line_); | |||||||
1547 | KE_TRACE(25, ("<- __kmp_allocate() returns %p\n", ptr))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_allocate() returns %p\n" , ptr); }; | |||||||
1548 | return ptr; | |||||||
1549 | } // func ___kmp_allocate | |||||||
1550 | ||||||||
1551 | /* Allocate memory on page boundary, fill allocated memory with 0x00. | |||||||
1552 | Does not call this func directly! Use __kmp_page_allocate macro instead. | |||||||
1553 | NULL is NEVER returned, __kmp_abort() is called in case of memory allocation | |||||||
1554 | error. Must use __kmp_free when freeing memory allocated by this routine! */ | |||||||
1555 | void *___kmp_page_allocate(size_t size KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1556 | int page_size = 8 * 1024; | |||||||
1557 | void *ptr; | |||||||
1558 | ||||||||
1559 | KE_TRACE(25, ("-> __kmp_page_allocate( %d ) called from %s:%d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_page_allocate( %d ) called from %s:%d\n" , (int)size , _file_, _line_); } | |||||||
1560 | (int)size KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_page_allocate( %d ) called from %s:%d\n" , (int)size , _file_, _line_); }; | |||||||
1561 | ptr = ___kmp_allocate_align(size, page_size KMP_SRC_LOC_PARM, _file_, _line_); | |||||||
1562 | KE_TRACE(25, ("<- __kmp_page_allocate( %d ) returns %p\n", (int)size, ptr))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_page_allocate( %d ) returns %p\n" , (int)size, ptr); }; | |||||||
1563 | return ptr; | |||||||
1564 | } // ___kmp_page_allocate | |||||||
1565 | ||||||||
1566 | /* Free memory allocated by __kmp_allocate() and __kmp_page_allocate(). | |||||||
1567 | In debug mode, fill the memory block with 0xEF before call to free(). */ | |||||||
1568 | void ___kmp_free(void *ptr KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1569 | kmp_mem_descr_t descr; | |||||||
1570 | kmp_uintptr_t addr_allocated; // Address returned by malloc(). | |||||||
1571 | kmp_uintptr_t addr_aligned; // Aligned address passed by caller. | |||||||
1572 | ||||||||
1573 | KE_TRACE(25,if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_free( %p ) called from %s:%d\n" , ptr , _file_, _line_); } | |||||||
1574 | ("-> __kmp_free( %p ) called from %s:%d\n", ptr KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_free( %p ) called from %s:%d\n" , ptr , _file_, _line_); }; | |||||||
1575 | KMP_ASSERT(ptr != NULL)((ptr != __null) ? 0 : __kmp_debug_assert("ptr != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1575)); | |||||||
1576 | ||||||||
1577 | descr = *(kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t)); | |||||||
1578 | ||||||||
1579 | KE_TRACE(26, (" __kmp_free: "if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_free: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1580 | "ptr_allocated=%p, size_allocated=%d, "if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_free: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1581 | "ptr_aligned=%p, size_aligned=%d\n",if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_free: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1582 | descr.ptr_allocated, (int)descr.size_allocated,if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_free: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); } | |||||||
1583 | descr.ptr_aligned, (int)descr.size_aligned))if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_free: " "ptr_allocated=%p, size_allocated=%d, " "ptr_aligned=%p, size_aligned=%d\n" , descr.ptr_allocated, (int)descr.size_allocated, descr.ptr_aligned , (int)descr.size_aligned); }; | |||||||
1584 | ||||||||
1585 | addr_allocated = (kmp_uintptr_t)descr.ptr_allocated; | |||||||
1586 | addr_aligned = (kmp_uintptr_t)descr.ptr_aligned; | |||||||
1587 | ||||||||
1588 | KMP_DEBUG_ASSERT(addr_aligned % CACHE_LINE == 0)((addr_aligned % 64 == 0) ? 0 : __kmp_debug_assert("addr_aligned % 64 == 0" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1588)); | |||||||
1589 | KMP_DEBUG_ASSERT(descr.ptr_aligned == ptr)((descr.ptr_aligned == ptr) ? 0 : __kmp_debug_assert("descr.ptr_aligned == ptr" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1589)); | |||||||
1590 | KMP_DEBUG_ASSERT(addr_allocated + sizeof(kmp_mem_descr_t) <= addr_aligned)((addr_allocated + sizeof(kmp_mem_descr_t) <= addr_aligned ) ? 0 : __kmp_debug_assert("addr_allocated + sizeof(kmp_mem_descr_t) <= addr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1590)); | |||||||
1591 | KMP_DEBUG_ASSERT(descr.size_aligned < descr.size_allocated)((descr.size_aligned < descr.size_allocated) ? 0 : __kmp_debug_assert ("descr.size_aligned < descr.size_allocated", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1591)); | |||||||
1592 | KMP_DEBUG_ASSERT(addr_aligned + descr.size_aligned <=((addr_aligned + descr.size_aligned <= addr_allocated + descr .size_allocated) ? 0 : __kmp_debug_assert("addr_aligned + descr.size_aligned <= addr_allocated + descr.size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1593)) | |||||||
1593 | addr_allocated + descr.size_allocated)((addr_aligned + descr.size_aligned <= addr_allocated + descr .size_allocated) ? 0 : __kmp_debug_assert("addr_aligned + descr.size_aligned <= addr_allocated + descr.size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1593)); | |||||||
1594 | ||||||||
1595 | #ifdef KMP_DEBUG1 | |||||||
1596 | memset(descr.ptr_allocated, 0xEF, descr.size_allocated); | |||||||
1597 | // Fill memory block with 0xEF, it helps catch using freed memory. | |||||||
1598 | #endif | |||||||
1599 | ||||||||
1600 | #ifndef LEAK_MEMORY | |||||||
1601 | KE_TRACE(10, (" free( %p )\n", descr.ptr_allocated))if (kmp_e_debug >= 10) { __kmp_debug_printf (" free( %p )\n" , descr.ptr_allocated); }; | |||||||
1602 | #ifdef KMP_DEBUG1 | |||||||
1603 | _free_src_loc(descr.ptr_allocated, _file_, _line_)free((descr.ptr_allocated)); | |||||||
1604 | #else | |||||||
1605 | free_src_loc(descr.ptr_allocated KMP_SRC_LOC_PARM)free((descr.ptr_allocated)); | |||||||
1606 | #endif | |||||||
1607 | #endif | |||||||
1608 | KMP_MB(); | |||||||
1609 | KE_TRACE(25, ("<- __kmp_free() returns\n"))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_free() returns\n" ); }; | |||||||
1610 | } // func ___kmp_free | |||||||
1611 | ||||||||
1612 | #if USE_FAST_MEMORY3 == 3 | |||||||
1613 | // Allocate fast memory by first scanning the thread's free lists | |||||||
1614 | // If a chunk the right size exists, grab it off the free list. | |||||||
1615 | // Otherwise allocate normally using kmp_thread_malloc. | |||||||
1616 | ||||||||
1617 | // AC: How to choose the limit? Just get 16 for now... | |||||||
1618 | #define KMP_FREE_LIST_LIMIT16 16 | |||||||
1619 | ||||||||
1620 | // Always use 128 bytes for determining buckets for caching memory blocks | |||||||
1621 | #define DCACHE_LINE128 128 | |||||||
1622 | ||||||||
1623 | void *___kmp_fast_allocate(kmp_info_t *this_thr, size_t size KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1624 | void *ptr; | |||||||
1625 | int num_lines; | |||||||
1626 | int idx; | |||||||
1627 | int index; | |||||||
1628 | void *alloc_ptr; | |||||||
1629 | size_t alloc_size; | |||||||
1630 | kmp_mem_descr_t *descr; | |||||||
1631 | ||||||||
1632 | KE_TRACE(25, ("-> __kmp_fast_allocate( T#%d, %d ) called from %s:%d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_fast_allocate( T#%d, %d ) called from %s:%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1633)), (this_thr)->th.th_info.ds.ds_gtid), (int)size , _file_ , _line_); } | |||||||
1633 | __kmp_gtid_from_thread(this_thr), (int)size KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_fast_allocate( T#%d, %d ) called from %s:%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1633)), (this_thr)->th.th_info.ds.ds_gtid), (int)size , _file_ , _line_); }; | |||||||
1634 | ||||||||
1635 | num_lines = (size + DCACHE_LINE128 - 1) / DCACHE_LINE128; | |||||||
1636 | idx = num_lines - 1; | |||||||
1637 | KMP_DEBUG_ASSERT(idx >= 0)((idx >= 0) ? 0 : __kmp_debug_assert("idx >= 0", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1637)); | |||||||
1638 | if (idx < 2) { | |||||||
1639 | index = 0; // idx is [ 0, 1 ], use first free list | |||||||
1640 | num_lines = 2; // 1, 2 cache lines or less than cache line | |||||||
1641 | } else if ((idx >>= 2) == 0) { | |||||||
1642 | index = 1; // idx is [ 2, 3 ], use second free list | |||||||
1643 | num_lines = 4; // 3, 4 cache lines | |||||||
1644 | } else if ((idx >>= 2) == 0) { | |||||||
1645 | index = 2; // idx is [ 4, 15 ], use third free list | |||||||
1646 | num_lines = 16; // 5, 6, ..., 16 cache lines | |||||||
1647 | } else if ((idx >>= 2) == 0) { | |||||||
1648 | index = 3; // idx is [ 16, 63 ], use fourth free list | |||||||
1649 | num_lines = 64; // 17, 18, ..., 64 cache lines | |||||||
1650 | } else { | |||||||
1651 | goto alloc_call; // 65 or more cache lines ( > 8KB ), don't use free lists | |||||||
1652 | } | |||||||
1653 | ||||||||
1654 | ptr = this_thr->th.th_free_lists[index].th_free_list_self; | |||||||
1655 | if (ptr != NULL__null) { | |||||||
1656 | // pop the head of no-sync free list | |||||||
1657 | this_thr->th.th_free_lists[index].th_free_list_self = *((void **)ptr); | |||||||
1658 | KMP_DEBUG_ASSERT(((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1661)) | |||||||
1659 | this_thr ==((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1661)) | |||||||
1660 | ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t)))((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1661)) | |||||||
1661 | ->ptr_aligned)((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1661)); | |||||||
1662 | goto end; | |||||||
1663 | } | |||||||
1664 | ptr = TCR_SYNC_PTR(this_thr->th.th_free_lists[index].th_free_list_sync)((void *)(this_thr->th.th_free_lists[index].th_free_list_sync )); | |||||||
1665 | if (ptr != NULL__null) { | |||||||
1666 | // no-sync free list is empty, use sync free list (filled in by other | |||||||
1667 | // threads only) | |||||||
1668 | // pop the head of the sync free list, push NULL instead | |||||||
1669 | while (!KMP_COMPARE_AND_STORE_PTR(__sync_bool_compare_and_swap((void *volatile *)(&this_thr ->th.th_free_lists[index].th_free_list_sync), (void *)(ptr ), (void *)(nullptr)) | |||||||
1670 | &this_thr->th.th_free_lists[index].th_free_list_sync, ptr, nullptr)__sync_bool_compare_and_swap((void *volatile *)(&this_thr ->th.th_free_lists[index].th_free_list_sync), (void *)(ptr ), (void *)(nullptr))) { | |||||||
1671 | KMP_CPU_PAUSE()__kmp_x86_pause(); | |||||||
1672 | ptr = TCR_SYNC_PTR(this_thr->th.th_free_lists[index].th_free_list_sync)((void *)(this_thr->th.th_free_lists[index].th_free_list_sync )); | |||||||
1673 | } | |||||||
1674 | // push the rest of chain into no-sync free list (can be NULL if there was | |||||||
1675 | // the only block) | |||||||
1676 | this_thr->th.th_free_lists[index].th_free_list_self = *((void **)ptr); | |||||||
1677 | KMP_DEBUG_ASSERT(((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1680)) | |||||||
1678 | this_thr ==((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1680)) | |||||||
1679 | ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t)))((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1680)) | |||||||
1680 | ->ptr_aligned)((this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof (kmp_mem_descr_t))) ->ptr_aligned) ? 0 : __kmp_debug_assert ("this_thr == ((kmp_mem_descr_t *)((kmp_uintptr_t)ptr - sizeof(kmp_mem_descr_t))) ->ptr_aligned" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1680)); | |||||||
1681 | goto end; | |||||||
1682 | } | |||||||
1683 | ||||||||
1684 | alloc_call: | |||||||
1685 | // haven't found block in the free lists, thus allocate it | |||||||
1686 | size = num_lines * DCACHE_LINE128; | |||||||
1687 | ||||||||
1688 | alloc_size = size + sizeof(kmp_mem_descr_t) + DCACHE_LINE128; | |||||||
1689 | KE_TRACE(25, ("__kmp_fast_allocate: T#%d Calling __kmp_thread_malloc with "if (kmp_e_debug >= 25) { __kmp_debug_printf ("__kmp_fast_allocate: T#%d Calling __kmp_thread_malloc with " "alloc_size %d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert ("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1691)), (this_thr)->th.th_info.ds.ds_gtid), alloc_size); } | |||||||
1690 | "alloc_size %d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("__kmp_fast_allocate: T#%d Calling __kmp_thread_malloc with " "alloc_size %d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert ("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1691)), (this_thr)->th.th_info.ds.ds_gtid), alloc_size); } | |||||||
1691 | __kmp_gtid_from_thread(this_thr), alloc_size))if (kmp_e_debug >= 25) { __kmp_debug_printf ("__kmp_fast_allocate: T#%d Calling __kmp_thread_malloc with " "alloc_size %d\n", ((((this_thr) != __null) ? 0 : __kmp_debug_assert ("(this_thr) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1691)), (this_thr)->th.th_info.ds.ds_gtid), alloc_size); }; | |||||||
1692 | alloc_ptr = bget(this_thr, (bufsize)alloc_size); | |||||||
1693 | ||||||||
1694 | // align ptr to DCACHE_LINE | |||||||
1695 | ptr = (void *)((((kmp_uintptr_t)alloc_ptr) + sizeof(kmp_mem_descr_t) + | |||||||
1696 | DCACHE_LINE128) & | |||||||
1697 | ~(DCACHE_LINE128 - 1)); | |||||||
1698 | descr = (kmp_mem_descr_t *)(((kmp_uintptr_t)ptr) - sizeof(kmp_mem_descr_t)); | |||||||
1699 | ||||||||
1700 | descr->ptr_allocated = alloc_ptr; // remember allocated pointer | |||||||
1701 | // we don't need size_allocated | |||||||
1702 | descr->ptr_aligned = (void *)this_thr; // remember allocating thread | |||||||
1703 | // (it is already saved in bget buffer, | |||||||
1704 | // but we may want to use another allocator in future) | |||||||
1705 | descr->size_aligned = size; | |||||||
1706 | ||||||||
1707 | end: | |||||||
1708 | KE_TRACE(25, ("<- __kmp_fast_allocate( T#%d ) returns %p\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_fast_allocate( T#%d ) returns %p\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1709)), (this_thr)->th.th_info.ds.ds_gtid), ptr); } | |||||||
1709 | __kmp_gtid_from_thread(this_thr), ptr))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_fast_allocate( T#%d ) returns %p\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1709)), (this_thr)->th.th_info.ds.ds_gtid), ptr); }; | |||||||
1710 | return ptr; | |||||||
1711 | } // func __kmp_fast_allocate | |||||||
1712 | ||||||||
1713 | // Free fast memory and place it on the thread's free list if it is of | |||||||
1714 | // the correct size. | |||||||
1715 | void ___kmp_fast_free(kmp_info_t *this_thr, void *ptr KMP_SRC_LOC_DECL, char const *_file_, int _line_) { | |||||||
1716 | kmp_mem_descr_t *descr; | |||||||
1717 | kmp_info_t *alloc_thr; | |||||||
1718 | size_t size; | |||||||
1719 | size_t idx; | |||||||
1720 | int index; | |||||||
1721 | ||||||||
1722 | KE_TRACE(25, ("-> __kmp_fast_free( T#%d, %p ) called from %s:%d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_fast_free( T#%d, %p ) called from %s:%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1723)), (this_thr)->th.th_info.ds.ds_gtid), ptr , _file_ , _line_); } | |||||||
1723 | __kmp_gtid_from_thread(this_thr), ptr KMP_SRC_LOC_PARM))if (kmp_e_debug >= 25) { __kmp_debug_printf ("-> __kmp_fast_free( T#%d, %p ) called from %s:%d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1723)), (this_thr)->th.th_info.ds.ds_gtid), ptr , _file_ , _line_); }; | |||||||
1724 | KMP_ASSERT(ptr != NULL)((ptr != __null) ? 0 : __kmp_debug_assert("ptr != NULL", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1724)); | |||||||
1725 | ||||||||
1726 | descr = (kmp_mem_descr_t *)(((kmp_uintptr_t)ptr) - sizeof(kmp_mem_descr_t)); | |||||||
1727 | ||||||||
1728 | KE_TRACE(26, (" __kmp_fast_free: size_aligned=%d\n",if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_fast_free: size_aligned=%d\n" , (int)descr->size_aligned); } | |||||||
1729 | (int)descr->size_aligned))if (kmp_e_debug >= 26) { __kmp_debug_printf (" __kmp_fast_free: size_aligned=%d\n" , (int)descr->size_aligned); }; | |||||||
1730 | ||||||||
1731 | size = descr->size_aligned; // 2, 4, 16, 64, 65, 66, ... cache lines | |||||||
1732 | ||||||||
1733 | idx = DCACHE_LINE128 * 2; // 2 cache lines is minimal size of block | |||||||
1734 | if (idx == size) { | |||||||
1735 | index = 0; // 2 cache lines | |||||||
1736 | } else if ((idx <<= 1) == size) { | |||||||
1737 | index = 1; // 4 cache lines | |||||||
1738 | } else if ((idx <<= 2) == size) { | |||||||
1739 | index = 2; // 16 cache lines | |||||||
1740 | } else if ((idx <<= 2) == size) { | |||||||
1741 | index = 3; // 64 cache lines | |||||||
1742 | } else { | |||||||
1743 | KMP_DEBUG_ASSERT(size > DCACHE_LINE * 64)((size > 128 * 64) ? 0 : __kmp_debug_assert("size > 128 * 64" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1743)); | |||||||
1744 | goto free_call; // 65 or more cache lines ( > 8KB ) | |||||||
1745 | } | |||||||
1746 | ||||||||
1747 | alloc_thr = (kmp_info_t *)descr->ptr_aligned; // get thread owning the block | |||||||
1748 | if (alloc_thr == this_thr) { | |||||||
1749 | // push block to self no-sync free list, linking previous head (LIFO) | |||||||
1750 | *((void **)ptr) = this_thr->th.th_free_lists[index].th_free_list_self; | |||||||
1751 | this_thr->th.th_free_lists[index].th_free_list_self = ptr; | |||||||
1752 | } else { | |||||||
1753 | void *head = this_thr->th.th_free_lists[index].th_free_list_other; | |||||||
1754 | if (head == NULL__null) { | |||||||
1755 | // Create new free list | |||||||
1756 | this_thr->th.th_free_lists[index].th_free_list_other = ptr; | |||||||
1757 | *((void **)ptr) = NULL__null; // mark the tail of the list | |||||||
1758 | descr->size_allocated = (size_t)1; // head of the list keeps its length | |||||||
1759 | } else { | |||||||
1760 | // need to check existed "other" list's owner thread and size of queue | |||||||
1761 | kmp_mem_descr_t *dsc = | |||||||
1762 | (kmp_mem_descr_t *)((char *)head - sizeof(kmp_mem_descr_t)); | |||||||
1763 | // allocating thread, same for all queue nodes | |||||||
1764 | kmp_info_t *q_th = (kmp_info_t *)(dsc->ptr_aligned); | |||||||
1765 | size_t q_sz = | |||||||
1766 | dsc->size_allocated + 1; // new size in case we add current task | |||||||
1767 | if (q_th == alloc_thr && q_sz <= KMP_FREE_LIST_LIMIT16) { | |||||||
1768 | // we can add current task to "other" list, no sync needed | |||||||
1769 | *((void **)ptr) = head; | |||||||
1770 | descr->size_allocated = q_sz; | |||||||
1771 | this_thr->th.th_free_lists[index].th_free_list_other = ptr; | |||||||
1772 | } else { | |||||||
1773 | // either queue blocks owner is changing or size limit exceeded | |||||||
1774 | // return old queue to allocating thread (q_th) synchroneously, | |||||||
1775 | // and start new list for alloc_thr's tasks | |||||||
1776 | void *old_ptr; | |||||||
1777 | void *tail = head; | |||||||
1778 | void *next = *((void **)head); | |||||||
1779 | while (next != NULL__null) { | |||||||
1780 | KMP_DEBUG_ASSERT(((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1781 | // queue size should decrease by 1 each step through the list((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1782 | ((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t)))((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1783 | ->size_allocated +((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1784 | 1 ==((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1785 | ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t)))((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)) | |||||||
1786 | ->size_allocated)((((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t) )) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated) ? 0 : __kmp_debug_assert ("((kmp_mem_descr_t *)((char *)next - sizeof(kmp_mem_descr_t))) ->size_allocated + 1 == ((kmp_mem_descr_t *)((char *)tail - sizeof(kmp_mem_descr_t))) ->size_allocated" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1786)); | |||||||
1787 | tail = next; // remember tail node | |||||||
1788 | next = *((void **)next); | |||||||
1789 | } | |||||||
1790 | KMP_DEBUG_ASSERT(q_th != NULL)((q_th != __null) ? 0 : __kmp_debug_assert("q_th != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1790)); | |||||||
1791 | // push block to owner's sync free list | |||||||
1792 | old_ptr = TCR_PTR(q_th->th.th_free_lists[index].th_free_list_sync)((void *)(q_th->th.th_free_lists[index].th_free_list_sync) ); | |||||||
1793 | /* the next pointer must be set before setting free_list to ptr to avoid | |||||||
1794 | exposing a broken list to other threads, even for an instant. */ | |||||||
1795 | *((void **)tail) = old_ptr; | |||||||
1796 | ||||||||
1797 | while (!KMP_COMPARE_AND_STORE_PTR(__sync_bool_compare_and_swap((void *volatile *)(&q_th-> th.th_free_lists[index].th_free_list_sync), (void *)(old_ptr) , (void *)(head)) | |||||||
1798 | &q_th->th.th_free_lists[index].th_free_list_sync, old_ptr, head)__sync_bool_compare_and_swap((void *volatile *)(&q_th-> th.th_free_lists[index].th_free_list_sync), (void *)(old_ptr) , (void *)(head))) { | |||||||
1799 | KMP_CPU_PAUSE()__kmp_x86_pause(); | |||||||
1800 | old_ptr = TCR_PTR(q_th->th.th_free_lists[index].th_free_list_sync)((void *)(q_th->th.th_free_lists[index].th_free_list_sync) ); | |||||||
1801 | *((void **)tail) = old_ptr; | |||||||
1802 | } | |||||||
1803 | ||||||||
1804 | // start new list of not-selt tasks | |||||||
1805 | this_thr->th.th_free_lists[index].th_free_list_other = ptr; | |||||||
1806 | *((void **)ptr) = NULL__null; | |||||||
1807 | descr->size_allocated = (size_t)1; // head of queue keeps its length | |||||||
1808 | } | |||||||
1809 | } | |||||||
1810 | } | |||||||
1811 | goto end; | |||||||
1812 | ||||||||
1813 | free_call: | |||||||
1814 | KE_TRACE(25, ("__kmp_fast_free: T#%d Calling __kmp_thread_free for size %d\n",if (kmp_e_debug >= 25) { __kmp_debug_printf ("__kmp_fast_free: T#%d Calling __kmp_thread_free for size %d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1815)), (this_thr)->th.th_info.ds.ds_gtid), size); } | |||||||
1815 | __kmp_gtid_from_thread(this_thr), size))if (kmp_e_debug >= 25) { __kmp_debug_printf ("__kmp_fast_free: T#%d Calling __kmp_thread_free for size %d\n" , ((((this_thr) != __null) ? 0 : __kmp_debug_assert("(this_thr) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1815)), (this_thr)->th.th_info.ds.ds_gtid), size); }; | |||||||
1816 | __kmp_bget_dequeue(this_thr); /* Release any queued buffers */ | |||||||
1817 | brel(this_thr, descr->ptr_allocated); | |||||||
1818 | ||||||||
1819 | end: | |||||||
1820 | KE_TRACE(25, ("<- __kmp_fast_free() returns\n"))if (kmp_e_debug >= 25) { __kmp_debug_printf ("<- __kmp_fast_free() returns\n" ); }; | |||||||
1821 | ||||||||
1822 | } // func __kmp_fast_free | |||||||
1823 | ||||||||
1824 | // Initialize the thread free lists related to fast memory | |||||||
1825 | // Only do this when a thread is initially created. | |||||||
1826 | void __kmp_initialize_fast_memory(kmp_info_t *this_thr) { | |||||||
1827 | KE_TRACE(10, ("__kmp_initialize_fast_memory: Called from th %p\n", this_thr))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_initialize_fast_memory: Called from th %p\n" , this_thr); }; | |||||||
1828 | ||||||||
1829 | memset(this_thr->th.th_free_lists, 0, NUM_LISTS4 * sizeof(kmp_free_list_t)); | |||||||
1830 | } | |||||||
1831 | ||||||||
1832 | // Free the memory in the thread free lists related to fast memory | |||||||
1833 | // Only do this when a thread is being reaped (destroyed). | |||||||
1834 | void __kmp_free_fast_memory(kmp_info_t *th) { | |||||||
1835 | // Suppose we use BGET underlying allocator, walk through its structures... | |||||||
1836 | int bin; | |||||||
1837 | thr_data_t *thr = get_thr_data(th); | |||||||
1838 | void **lst = NULL__null; | |||||||
1839 | ||||||||
1840 | KE_TRACE(if (kmp_e_debug >= 5) { __kmp_debug_printf ("__kmp_free_fast_memory: Called T#%d\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1841)), (th)->th.th_info.ds.ds_gtid)); } | |||||||
1841 | 5, ("__kmp_free_fast_memory: Called T#%d\n", __kmp_gtid_from_thread(th)))if (kmp_e_debug >= 5) { __kmp_debug_printf ("__kmp_free_fast_memory: Called T#%d\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1841)), (th)->th.th_info.ds.ds_gtid)); }; | |||||||
1842 | ||||||||
1843 | __kmp_bget_dequeue(th); // Release any queued buffers | |||||||
1844 | ||||||||
1845 | // Dig through free lists and extract all allocated blocks | |||||||
1846 | for (bin = 0; bin < MAX_BGET_BINS(int)(sizeof(bget_bin_size) / sizeof(bufsize)); ++bin) { | |||||||
1847 | bfhead_t *b = thr->freelist[bin].ql.flink; | |||||||
1848 | while (b != &thr->freelist[bin]) { | |||||||
1849 | if ((kmp_uintptr_t)b->bh.bb.bthr & 1) { // the buffer is allocated address | |||||||
1850 | *((void **)b) = | |||||||
1851 | lst; // link the list (override bthr, but keep flink yet) | |||||||
1852 | lst = (void **)b; // push b into lst | |||||||
1853 | } | |||||||
1854 | b = b->ql.flink; // get next buffer | |||||||
1855 | } | |||||||
1856 | } | |||||||
1857 | while (lst != NULL__null) { | |||||||
1858 | void *next = *lst; | |||||||
1859 | KE_TRACE(10, ("__kmp_free_fast_memory: freeing %p, next=%p th %p (%d)\n",if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_free_fast_memory: freeing %p, next=%p th %p (%d)\n" , lst, next, th, ((((th) != __null) ? 0 : __kmp_debug_assert( "(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1860)), (th)->th.th_info.ds.ds_gtid)); } | |||||||
1860 | lst, next, th, __kmp_gtid_from_thread(th)))if (kmp_e_debug >= 10) { __kmp_debug_printf ("__kmp_free_fast_memory: freeing %p, next=%p th %p (%d)\n" , lst, next, th, ((((th) != __null) ? 0 : __kmp_debug_assert( "(th) != __null", "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1860)), (th)->th.th_info.ds.ds_gtid)); }; | |||||||
1861 | (*thr->relfcn)(lst); | |||||||
1862 | #if BufStats1 | |||||||
1863 | // count blocks to prevent problems in __kmp_finalize_bget() | |||||||
1864 | thr->numprel++; /* Nr of expansion block releases */ | |||||||
1865 | thr->numpblk--; /* Total number of blocks */ | |||||||
1866 | #endif | |||||||
1867 | lst = (void **)next; | |||||||
1868 | } | |||||||
1869 | ||||||||
1870 | KE_TRACE(if (kmp_e_debug >= 5) { __kmp_debug_printf ("__kmp_free_fast_memory: Freed T#%d\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1871)), (th)->th.th_info.ds.ds_gtid)); } | |||||||
1871 | 5, ("__kmp_free_fast_memory: Freed T#%d\n", __kmp_gtid_from_thread(th)))if (kmp_e_debug >= 5) { __kmp_debug_printf ("__kmp_free_fast_memory: Freed T#%d\n" , ((((th) != __null) ? 0 : __kmp_debug_assert("(th) != __null" , "/build/llvm-toolchain-snapshot-7~svn338205/projects/openmp/runtime/src/kmp_alloc.cpp" , 1871)), (th)->th.th_info.ds.ds_gtid)); }; | |||||||
1872 | } | |||||||
1873 | ||||||||
1874 | #endif // USE_FAST_MEMORY |