File: | projects/openmp/runtime/src/kmp_alloc.cpp |
Warning: | line 1722, column 3 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_); } | ||||||
Within the expansion of the macro 'KE_TRACE':
| |||||||
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 |