File: | projects/compiler-rt/lib/profile/InstrProfilingFile.c |
Warning: | line 475, column 7 Use of memory after it is freed |
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1 | /*===- InstrProfilingFile.c - Write instrumentation to a file -------------===*\ | |||
2 | |* | |||
3 | |* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | |||
4 | |* See https://llvm.org/LICENSE.txt for license information. | |||
5 | |* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | |||
6 | |* | |||
7 | \*===----------------------------------------------------------------------===*/ | |||
8 | ||||
9 | #if !defined(__Fuchsia__) | |||
10 | ||||
11 | #include <errno(*__errno_location ()).h> | |||
12 | #include <stdio.h> | |||
13 | #include <stdlib.h> | |||
14 | #include <string.h> | |||
15 | #ifdef _MSC_VER | |||
16 | /* For _alloca. */ | |||
17 | #include <malloc.h> | |||
18 | #endif | |||
19 | #if defined(_WIN32) | |||
20 | #include "WindowsMMap.h" | |||
21 | /* For _chsize_s */ | |||
22 | #include <io.h> | |||
23 | #include <process.h> | |||
24 | #else | |||
25 | #include <sys/file.h> | |||
26 | #include <sys/mman.h> | |||
27 | #include <unistd.h> | |||
28 | #if defined(__linux__1) | |||
29 | #include <sys/types.h> | |||
30 | #endif | |||
31 | #endif | |||
32 | ||||
33 | #include "InstrProfiling.h" | |||
34 | #include "InstrProfilingInternal.h" | |||
35 | #include "InstrProfilingUtil.h" | |||
36 | ||||
37 | /* From where is profile name specified. | |||
38 | * The order the enumerators define their | |||
39 | * precedence. Re-order them may lead to | |||
40 | * runtime behavior change. */ | |||
41 | typedef enum ProfileNameSpecifier { | |||
42 | PNS_unknown = 0, | |||
43 | PNS_default, | |||
44 | PNS_command_line, | |||
45 | PNS_environment, | |||
46 | PNS_runtime_api | |||
47 | } ProfileNameSpecifier; | |||
48 | ||||
49 | static const char *getPNSStr(ProfileNameSpecifier PNS) { | |||
50 | switch (PNS) { | |||
51 | case PNS_default: | |||
52 | return "default setting"; | |||
53 | case PNS_command_line: | |||
54 | return "command line"; | |||
55 | case PNS_environment: | |||
56 | return "environment variable"; | |||
57 | case PNS_runtime_api: | |||
58 | return "runtime API"; | |||
59 | default: | |||
60 | return "Unknown"; | |||
61 | } | |||
62 | } | |||
63 | ||||
64 | #define MAX_PID_SIZE16 16 | |||
65 | /* Data structure holding the result of parsed filename pattern. */ | |||
66 | typedef struct lprofFilename { | |||
67 | /* File name string possibly with %p or %h specifiers. */ | |||
68 | const char *FilenamePat; | |||
69 | /* A flag indicating if FilenamePat's memory is allocated | |||
70 | * by runtime. */ | |||
71 | unsigned OwnsFilenamePat; | |||
72 | const char *ProfilePathPrefix; | |||
73 | const char *Filename; | |||
74 | char PidChars[MAX_PID_SIZE16]; | |||
75 | char Hostname[COMPILER_RT_MAX_HOSTLEN128]; | |||
76 | unsigned NumPids; | |||
77 | unsigned NumHosts; | |||
78 | /* When in-process merging is enabled, this parameter specifies | |||
79 | * the total number of profile data files shared by all the processes | |||
80 | * spawned from the same binary. By default the value is 1. If merging | |||
81 | * is not enabled, its value should be 0. This parameter is specified | |||
82 | * by the %[0-9]m specifier. For instance %2m enables merging using | |||
83 | * 2 profile data files. %1m is equivalent to %m. Also %m specifier | |||
84 | * can only appear once at the end of the name pattern. */ | |||
85 | unsigned MergePoolSize; | |||
86 | ProfileNameSpecifier PNS; | |||
87 | } lprofFilename; | |||
88 | ||||
89 | COMPILER_RT_WEAK__attribute__((weak)) lprofFilename lprofCurFilename = {0, 0, 0, 0, {0}, | |||
90 | {0}, 0, 0, 0, PNS_unknown}; | |||
91 | ||||
92 | static int ProfileMergeRequested = 0; | |||
93 | static int isProfileMergeRequested() { return ProfileMergeRequested; } | |||
94 | static void setProfileMergeRequested(int EnableMerge) { | |||
95 | ProfileMergeRequested = EnableMerge; | |||
96 | } | |||
97 | ||||
98 | static FILE *ProfileFile = NULL((void*)0); | |||
99 | static FILE *getProfileFile() { return ProfileFile; } | |||
100 | static void setProfileFile(FILE *File) { ProfileFile = File; } | |||
101 | ||||
102 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) void __llvm_profile_set_file_object(FILE *File, | |||
103 | int EnableMerge) { | |||
104 | setProfileFile(File); | |||
105 | setProfileMergeRequested(EnableMerge); | |||
106 | } | |||
107 | ||||
108 | static int getCurFilenameLength(); | |||
109 | static const char *getCurFilename(char *FilenameBuf, int ForceUseBuf); | |||
110 | static unsigned doMerging() { | |||
111 | return lprofCurFilename.MergePoolSize || isProfileMergeRequested(); | |||
112 | } | |||
113 | ||||
114 | /* Return 1 if there is an error, otherwise return 0. */ | |||
115 | static uint32_t fileWriter(ProfDataWriter *This, ProfDataIOVec *IOVecs, | |||
116 | uint32_t NumIOVecs) { | |||
117 | uint32_t I; | |||
118 | FILE *File = (FILE *)This->WriterCtx; | |||
119 | for (I = 0; I < NumIOVecs; I++) { | |||
120 | if (IOVecs[I].Data) { | |||
121 | if (fwrite(IOVecs[I].Data, IOVecs[I].ElmSize, IOVecs[I].NumElm, File) != | |||
122 | IOVecs[I].NumElm) | |||
123 | return 1; | |||
124 | } else { | |||
125 | if (fseek(File, IOVecs[I].ElmSize * IOVecs[I].NumElm, SEEK_CUR1) == -1) | |||
126 | return 1; | |||
127 | } | |||
128 | } | |||
129 | return 0; | |||
130 | } | |||
131 | ||||
132 | /* TODO: make buffer size controllable by an internal option, and compiler can pass the size | |||
133 | to runtime via a variable. */ | |||
134 | static uint32_t orderFileWriter(FILE *File, const uint32_t *DataStart) { | |||
135 | if (fwrite(DataStart, sizeof(uint32_t), INSTR_ORDER_FILE_BUFFER_SIZE131072, File) != | |||
136 | INSTR_ORDER_FILE_BUFFER_SIZE131072) | |||
137 | return 1; | |||
138 | return 0; | |||
139 | } | |||
140 | ||||
141 | static void initFileWriter(ProfDataWriter *This, FILE *File) { | |||
142 | This->Write = fileWriter; | |||
143 | This->WriterCtx = File; | |||
144 | } | |||
145 | ||||
146 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) ProfBufferIO * | |||
147 | lprofCreateBufferIOInternal(void *File, uint32_t BufferSz) { | |||
148 | FreeHook = &free; | |||
149 | DynamicBufferIOBuffer = (uint8_t *)calloc(BufferSz, 1); | |||
150 | VPBufferSize = BufferSz; | |||
151 | ProfDataWriter *fileWriter = | |||
152 | (ProfDataWriter *)calloc(sizeof(ProfDataWriter), 1); | |||
153 | initFileWriter(fileWriter, File); | |||
154 | ProfBufferIO *IO = lprofCreateBufferIO(fileWriter); | |||
155 | IO->OwnFileWriter = 1; | |||
156 | return IO; | |||
157 | } | |||
158 | ||||
159 | static void setupIOBuffer() { | |||
160 | const char *BufferSzStr = 0; | |||
161 | BufferSzStr = getenv("LLVM_VP_BUFFER_SIZE"); | |||
162 | if (BufferSzStr && BufferSzStr[0]) { | |||
163 | VPBufferSize = atoi(BufferSzStr); | |||
164 | DynamicBufferIOBuffer = (uint8_t *)calloc(VPBufferSize, 1); | |||
165 | } | |||
166 | } | |||
167 | ||||
168 | /* Read profile data in \c ProfileFile and merge with in-memory | |||
169 | profile counters. Returns -1 if there is fatal error, otheriwse | |||
170 | 0 is returned. Returning 0 does not mean merge is actually | |||
171 | performed. If merge is actually done, *MergeDone is set to 1. | |||
172 | */ | |||
173 | static int doProfileMerging(FILE *ProfileFile, int *MergeDone) { | |||
174 | uint64_t ProfileFileSize; | |||
175 | char *ProfileBuffer; | |||
176 | ||||
177 | if (fseek(ProfileFile, 0L, SEEK_END2) == -1) { | |||
178 | PROF_ERR("Unable to merge profile data, unable to get size: %s\n",fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, unable to get size: %s\n" , strerror((*__errno_location ()))); | |||
179 | strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, unable to get size: %s\n" , strerror((*__errno_location ())));; | |||
180 | return -1; | |||
181 | } | |||
182 | ProfileFileSize = ftell(ProfileFile); | |||
183 | ||||
184 | /* Restore file offset. */ | |||
185 | if (fseek(ProfileFile, 0L, SEEK_SET0) == -1) { | |||
186 | PROF_ERR("Unable to merge profile data, unable to rewind: %s\n",fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, unable to rewind: %s\n" , strerror((*__errno_location ()))); | |||
187 | strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, unable to rewind: %s\n" , strerror((*__errno_location ())));; | |||
188 | return -1; | |||
189 | } | |||
190 | ||||
191 | /* Nothing to merge. */ | |||
192 | if (ProfileFileSize < sizeof(__llvm_profile_header)) { | |||
193 | if (ProfileFileSize) | |||
194 | PROF_WARN("Unable to merge profile data: %s\n",fprintf(stderr, "LLVM Profile Warning: " "Unable to merge profile data: %s\n" , "source profile file is too small."); | |||
195 | "source profile file is too small.")fprintf(stderr, "LLVM Profile Warning: " "Unable to merge profile data: %s\n" , "source profile file is too small.");; | |||
196 | return 0; | |||
197 | } | |||
198 | ||||
199 | ProfileBuffer = mmap(NULL((void*)0), ProfileFileSize, PROT_READ0x1, MAP_SHARED0x01 | MAP_FILE0, | |||
200 | fileno(ProfileFile), 0); | |||
201 | if (ProfileBuffer == MAP_FAILED((void *) -1)) { | |||
202 | PROF_ERR("Unable to merge profile data, mmap failed: %s\n",fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, mmap failed: %s\n" , strerror((*__errno_location ()))); | |||
203 | strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Unable to merge profile data, mmap failed: %s\n" , strerror((*__errno_location ())));; | |||
204 | return -1; | |||
205 | } | |||
206 | ||||
207 | if (__llvm_profile_check_compatibility(ProfileBuffer, ProfileFileSize)) { | |||
208 | (void)munmap(ProfileBuffer, ProfileFileSize); | |||
209 | PROF_WARN("Unable to merge profile data: %s\n",fprintf(stderr, "LLVM Profile Warning: " "Unable to merge profile data: %s\n" , "source profile file is not compatible."); | |||
210 | "source profile file is not compatible.")fprintf(stderr, "LLVM Profile Warning: " "Unable to merge profile data: %s\n" , "source profile file is not compatible.");; | |||
211 | return 0; | |||
212 | } | |||
213 | ||||
214 | /* Now start merging */ | |||
215 | __llvm_profile_merge_from_buffer(ProfileBuffer, ProfileFileSize); | |||
216 | ||||
217 | // Truncate the file in case merging of value profile did not happend to | |||
218 | // prevent from leaving garbage data at the end of the profile file. | |||
219 | COMPILER_RT_FTRUNCATE(ProfileFile, __llvm_profile_get_size_for_buffer())ftruncate(fileno(ProfileFile),__llvm_profile_get_size_for_buffer ()); | |||
220 | ||||
221 | (void)munmap(ProfileBuffer, ProfileFileSize); | |||
222 | *MergeDone = 1; | |||
223 | ||||
224 | return 0; | |||
225 | } | |||
226 | ||||
227 | /* Create the directory holding the file, if needed. */ | |||
228 | static void createProfileDir(const char *Filename) { | |||
229 | size_t Length = strlen(Filename); | |||
230 | if (lprofFindFirstDirSeparator(Filename)) { | |||
231 | char *Copy = (char *)COMPILER_RT_ALLOCA__builtin_alloca(Length + 1); | |||
232 | strncpy(Copy, Filename, Length + 1)__builtin_strncpy (Copy, Filename, Length + 1); | |||
233 | __llvm_profile_recursive_mkdir(Copy); | |||
234 | } | |||
235 | } | |||
236 | ||||
237 | /* Open the profile data for merging. It opens the file in r+b mode with | |||
238 | * file locking. If the file has content which is compatible with the | |||
239 | * current process, it also reads in the profile data in the file and merge | |||
240 | * it with in-memory counters. After the profile data is merged in memory, | |||
241 | * the original profile data is truncated and gets ready for the profile | |||
242 | * dumper. With profile merging enabled, each executable as well as any of | |||
243 | * its instrumented shared libraries dump profile data into their own data file. | |||
244 | */ | |||
245 | static FILE *openFileForMerging(const char *ProfileFileName, int *MergeDone) { | |||
246 | FILE *ProfileFile = NULL((void*)0); | |||
247 | int rc; | |||
248 | ||||
249 | ProfileFile = getProfileFile(); | |||
250 | if (ProfileFile) { | |||
251 | lprofLockFileHandle(ProfileFile); | |||
252 | } else { | |||
253 | createProfileDir(ProfileFileName); | |||
254 | ProfileFile = lprofOpenFileEx(ProfileFileName); | |||
255 | } | |||
256 | if (!ProfileFile) | |||
257 | return NULL((void*)0); | |||
258 | ||||
259 | rc = doProfileMerging(ProfileFile, MergeDone); | |||
260 | if (rc || (!*MergeDone && COMPILER_RT_FTRUNCATE(ProfileFile, 0L)ftruncate(fileno(ProfileFile),0L)) || | |||
261 | fseek(ProfileFile, 0L, SEEK_SET0) == -1) { | |||
262 | PROF_ERR("Profile Merging of file %s failed: %s\n", ProfileFileName,fprintf(stderr, "LLVM Profile Error: " "Profile Merging of file %s failed: %s\n" , ProfileFileName, strerror((*__errno_location ()))); | |||
263 | strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Profile Merging of file %s failed: %s\n" , ProfileFileName, strerror((*__errno_location ())));; | |||
264 | fclose(ProfileFile); | |||
265 | return NULL((void*)0); | |||
266 | } | |||
267 | return ProfileFile; | |||
268 | } | |||
269 | ||||
270 | static FILE *getFileObject(const char *OutputName) { | |||
271 | FILE *File; | |||
272 | File = getProfileFile(); | |||
273 | if (File != NULL((void*)0)) { | |||
274 | return File; | |||
275 | } | |||
276 | ||||
277 | return fopen(OutputName, "ab"); | |||
278 | } | |||
279 | ||||
280 | /* Write profile data to file \c OutputName. */ | |||
281 | static int writeFile(const char *OutputName) { | |||
282 | int RetVal; | |||
283 | FILE *OutputFile; | |||
284 | ||||
285 | int MergeDone = 0; | |||
286 | VPMergeHook = &lprofMergeValueProfData; | |||
287 | if (doMerging()) | |||
288 | OutputFile = openFileForMerging(OutputName, &MergeDone); | |||
289 | else | |||
290 | OutputFile = getFileObject(OutputName); | |||
291 | ||||
292 | if (!OutputFile) | |||
293 | return -1; | |||
294 | ||||
295 | FreeHook = &free; | |||
296 | setupIOBuffer(); | |||
297 | ProfDataWriter fileWriter; | |||
298 | initFileWriter(&fileWriter, OutputFile); | |||
299 | RetVal = lprofWriteData(&fileWriter, lprofGetVPDataReader(), MergeDone); | |||
300 | ||||
301 | if (OutputFile == getProfileFile()) { | |||
302 | fflush(OutputFile); | |||
303 | if (doMerging()) { | |||
304 | lprofUnlockFileHandle(OutputFile); | |||
305 | } | |||
306 | } else { | |||
307 | fclose(OutputFile); | |||
308 | } | |||
309 | ||||
310 | return RetVal; | |||
311 | } | |||
312 | ||||
313 | /* Write order data to file \c OutputName. */ | |||
314 | static int writeOrderFile(const char *OutputName) { | |||
315 | int RetVal; | |||
316 | FILE *OutputFile; | |||
317 | ||||
318 | OutputFile = fopen(OutputName, "w"); | |||
319 | ||||
320 | if (!OutputFile) { | |||
321 | PROF_WARN("can't open file with mode ab: %s\n", OutputName)fprintf(stderr, "LLVM Profile Warning: " "can't open file with mode ab: %s\n" , OutputName);; | |||
322 | return -1; | |||
323 | } | |||
324 | ||||
325 | FreeHook = &free; | |||
326 | setupIOBuffer(); | |||
327 | const uint32_t *DataBegin = __llvm_profile_begin_orderfile(); | |||
328 | RetVal = orderFileWriter(OutputFile, DataBegin); | |||
329 | ||||
330 | fclose(OutputFile); | |||
331 | return RetVal; | |||
332 | } | |||
333 | ||||
334 | static void truncateCurrentFile(void) { | |||
335 | const char *Filename; | |||
336 | char *FilenameBuf; | |||
337 | FILE *File; | |||
338 | int Length; | |||
339 | ||||
340 | Length = getCurFilenameLength(); | |||
341 | FilenameBuf = (char *)COMPILER_RT_ALLOCA__builtin_alloca(Length + 1); | |||
342 | Filename = getCurFilename(FilenameBuf, 0); | |||
343 | if (!Filename) | |||
344 | return; | |||
345 | ||||
346 | /* By pass file truncation to allow online raw profile | |||
347 | * merging. */ | |||
348 | if (lprofCurFilename.MergePoolSize) | |||
349 | return; | |||
350 | ||||
351 | createProfileDir(Filename); | |||
352 | ||||
353 | /* Truncate the file. Later we'll reopen and append. */ | |||
354 | File = fopen(Filename, "w"); | |||
355 | if (!File) | |||
356 | return; | |||
357 | fclose(File); | |||
358 | } | |||
359 | ||||
360 | static const char *DefaultProfileName = "default.profraw"; | |||
361 | static void resetFilenameToDefault(void) { | |||
362 | if (lprofCurFilename.FilenamePat && lprofCurFilename.OwnsFilenamePat) { | |||
363 | free((void *)lprofCurFilename.FilenamePat); | |||
364 | } | |||
365 | memset(&lprofCurFilename, 0, sizeof(lprofCurFilename)); | |||
366 | lprofCurFilename.FilenamePat = DefaultProfileName; | |||
367 | lprofCurFilename.PNS = PNS_default; | |||
368 | } | |||
369 | ||||
370 | static int containsMergeSpecifier(const char *FilenamePat, int I) { | |||
371 | return (FilenamePat[I] == 'm' || | |||
372 | (FilenamePat[I] >= '1' && FilenamePat[I] <= '9' && | |||
373 | /* If FilenamePat[I] is not '\0', the next byte is guaranteed | |||
374 | * to be in-bound as the string is null terminated. */ | |||
375 | FilenamePat[I + 1] == 'm')); | |||
376 | } | |||
377 | ||||
378 | /* Parses the pattern string \p FilenamePat and stores the result to | |||
379 | * lprofcurFilename structure. */ | |||
380 | static int parseFilenamePattern(const char *FilenamePat, | |||
381 | unsigned CopyFilenamePat) { | |||
382 | int NumPids = 0, NumHosts = 0, I; | |||
383 | char *PidChars = &lprofCurFilename.PidChars[0]; | |||
384 | char *Hostname = &lprofCurFilename.Hostname[0]; | |||
385 | int MergingEnabled = 0; | |||
386 | ||||
387 | /* Clean up cached prefix and filename. */ | |||
388 | if (lprofCurFilename.ProfilePathPrefix) | |||
389 | free((void *)lprofCurFilename.ProfilePathPrefix); | |||
390 | if (lprofCurFilename.Filename) | |||
391 | free((void *)lprofCurFilename.Filename); | |||
392 | ||||
393 | if (lprofCurFilename.FilenamePat
| |||
394 | free((void *)lprofCurFilename.FilenamePat); | |||
395 | } | |||
396 | ||||
397 | memset(&lprofCurFilename, 0, sizeof(lprofCurFilename)); | |||
398 | ||||
399 | if (!CopyFilenamePat
| |||
400 | lprofCurFilename.FilenamePat = FilenamePat; | |||
401 | else { | |||
402 | lprofCurFilename.FilenamePat = strdup(FilenamePat)(__extension__ (__builtin_constant_p (FilenamePat) && ((size_t)(const void *)((FilenamePat) + 1) - (size_t)(const void *)(FilenamePat) == 1) ? (((const char *) (FilenamePat))[0] == '\0' ? (char *) calloc ((size_t) 1, (size_t) 1) : ({ size_t __len = strlen (FilenamePat) + 1; char *__retval = (char *) malloc (__len); if (__retval != ((void*)0)) __retval = (char *) memcpy (__retval, FilenamePat, __len); __retval; })) : __strdup (FilenamePat ))); | |||
403 | lprofCurFilename.OwnsFilenamePat = 1; | |||
404 | } | |||
405 | /* Check the filename for "%p", which indicates a pid-substitution. */ | |||
406 | for (I = 0; FilenamePat[I]; ++I) | |||
407 | if (FilenamePat[I] == '%') { | |||
408 | if (FilenamePat[++I] == 'p') { | |||
409 | if (!NumPids++) { | |||
410 | if (snprintf(PidChars, MAX_PID_SIZE16, "%ld", (long)getpid()) <= 0) { | |||
411 | PROF_WARN("Unable to get pid for filename pattern %s. Using the "fprintf(stderr, "LLVM Profile Warning: " "Unable to get pid for filename pattern %s. Using the " "default name.", FilenamePat); | |||
412 | "default name.",fprintf(stderr, "LLVM Profile Warning: " "Unable to get pid for filename pattern %s. Using the " "default name.", FilenamePat); | |||
413 | FilenamePat)fprintf(stderr, "LLVM Profile Warning: " "Unable to get pid for filename pattern %s. Using the " "default name.", FilenamePat);; | |||
414 | return -1; | |||
415 | } | |||
416 | } | |||
417 | } else if (FilenamePat[I] == 'h') { | |||
418 | if (!NumHosts++) | |||
419 | if (COMPILER_RT_GETHOSTNAME(Hostname, COMPILER_RT_MAX_HOSTLEN)lprofGetHostName(Hostname, 128)) { | |||
420 | PROF_WARN("Unable to get hostname for filename pattern %s. Using "fprintf(stderr, "LLVM Profile Warning: " "Unable to get hostname for filename pattern %s. Using " "the default name.", FilenamePat); | |||
421 | "the default name.",fprintf(stderr, "LLVM Profile Warning: " "Unable to get hostname for filename pattern %s. Using " "the default name.", FilenamePat); | |||
422 | FilenamePat)fprintf(stderr, "LLVM Profile Warning: " "Unable to get hostname for filename pattern %s. Using " "the default name.", FilenamePat);; | |||
423 | return -1; | |||
424 | } | |||
425 | } else if (containsMergeSpecifier(FilenamePat, I)) { | |||
426 | if (MergingEnabled) { | |||
427 | PROF_WARN("%%m specifier can only be specified once in %s.\n",fprintf(stderr, "LLVM Profile Warning: " "%%m specifier can only be specified once in %s.\n" , FilenamePat); | |||
428 | FilenamePat)fprintf(stderr, "LLVM Profile Warning: " "%%m specifier can only be specified once in %s.\n" , FilenamePat);; | |||
429 | return -1; | |||
430 | } | |||
431 | MergingEnabled = 1; | |||
432 | if (FilenamePat[I] == 'm') | |||
433 | lprofCurFilename.MergePoolSize = 1; | |||
434 | else { | |||
435 | lprofCurFilename.MergePoolSize = FilenamePat[I] - '0'; | |||
436 | I++; /* advance to 'm' */ | |||
437 | } | |||
438 | } | |||
439 | } | |||
440 | ||||
441 | lprofCurFilename.NumPids = NumPids; | |||
442 | lprofCurFilename.NumHosts = NumHosts; | |||
443 | return 0; | |||
444 | } | |||
445 | ||||
446 | static void parseAndSetFilename(const char *FilenamePat, | |||
447 | ProfileNameSpecifier PNS, | |||
448 | unsigned CopyFilenamePat) { | |||
449 | ||||
450 | const char *OldFilenamePat = lprofCurFilename.FilenamePat; | |||
451 | ProfileNameSpecifier OldPNS = lprofCurFilename.PNS; | |||
452 | ||||
453 | if (PNS < OldPNS) | |||
454 | return; | |||
455 | ||||
456 | if (!FilenamePat) | |||
457 | FilenamePat = DefaultProfileName; | |||
458 | ||||
459 | if (OldFilenamePat && !strcmp(OldFilenamePat, FilenamePat)__extension__ ({ size_t __s1_len, __s2_len; (__builtin_constant_p (OldFilenamePat) && __builtin_constant_p (FilenamePat ) && (__s1_len = __builtin_strlen (OldFilenamePat), __s2_len = __builtin_strlen (FilenamePat), (!((size_t)(const void *)( (OldFilenamePat) + 1) - (size_t)(const void *)(OldFilenamePat ) == 1) || __s1_len >= 4) && (!((size_t)(const void *)((FilenamePat) + 1) - (size_t)(const void *)(FilenamePat) == 1) || __s2_len >= 4)) ? __builtin_strcmp (OldFilenamePat, FilenamePat) : (__builtin_constant_p (OldFilenamePat) && ((size_t)(const void *)((OldFilenamePat) + 1) - (size_t)(const void *)(OldFilenamePat) == 1) && (__s1_len = __builtin_strlen (OldFilenamePat), __s1_len < 4) ? (__builtin_constant_p ( FilenamePat) && ((size_t)(const void *)((FilenamePat) + 1) - (size_t)(const void *)(FilenamePat) == 1) ? __builtin_strcmp (OldFilenamePat, FilenamePat) : (__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (FilenamePat ); int __result = (((const unsigned char *) (const char *) (OldFilenamePat ))[0] - __s2[0]); if (__s1_len > 0 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (OldFilenamePat ))[1] - __s2[1]); if (__s1_len > 1 && __result == 0 ) { __result = (((const unsigned char *) (const char *) (OldFilenamePat ))[2] - __s2[2]); if (__s1_len > 2 && __result == 0 ) __result = (((const unsigned char *) (const char *) (OldFilenamePat ))[3] - __s2[3]); } } __result; }))) : (__builtin_constant_p ( FilenamePat) && ((size_t)(const void *)((FilenamePat) + 1) - (size_t)(const void *)(FilenamePat) == 1) && ( __s2_len = __builtin_strlen (FilenamePat), __s2_len < 4) ? (__builtin_constant_p (OldFilenamePat) && ((size_t)( const void *)((OldFilenamePat) + 1) - (size_t)(const void *)( OldFilenamePat) == 1) ? __builtin_strcmp (OldFilenamePat, FilenamePat ) : -(__extension__ ({ const unsigned char *__s2 = (const unsigned char *) (const char *) (OldFilenamePat); int __result = (((const unsigned char *) (const char *) (FilenamePat))[0] - __s2[0]) ; if (__s2_len > 0 && __result == 0) { __result = ( ((const unsigned char *) (const char *) (FilenamePat))[1] - __s2 [1]); if (__s2_len > 1 && __result == 0) { __result = (((const unsigned char *) (const char *) (FilenamePat))[2] - __s2[2]); if (__s2_len > 2 && __result == 0) __result = (((const unsigned char *) (const char *) (FilenamePat))[3] - __s2[3]); } } __result; }))) : __builtin_strcmp (OldFilenamePat , FilenamePat)))); })) { | |||
460 | lprofCurFilename.PNS = PNS; | |||
461 | return; | |||
462 | } | |||
463 | ||||
464 | /* When PNS >= OldPNS, the last one wins. */ | |||
465 | if (!FilenamePat
| |||
466 | resetFilenameToDefault(); | |||
467 | lprofCurFilename.PNS = PNS; | |||
468 | ||||
469 | if (!OldFilenamePat
| |||
470 | if (getenv("LLVM_PROFILE_VERBOSE")) | |||
471 | PROF_NOTE("Set profile file path to \"%s\" via %s.\n",fprintf(stderr, "LLVM Profile Note: " "Set profile file path to \"%s\" via %s.\n" , lprofCurFilename.FilenamePat, getPNSStr(PNS)); | |||
472 | lprofCurFilename.FilenamePat, getPNSStr(PNS))fprintf(stderr, "LLVM Profile Note: " "Set profile file path to \"%s\" via %s.\n" , lprofCurFilename.FilenamePat, getPNSStr(PNS));; | |||
473 | } else { | |||
474 | if (getenv("LLVM_PROFILE_VERBOSE")) | |||
475 | PROF_NOTE("Override old profile path \"%s\" via %s to \"%s\" via %s.\n",fprintf(stderr, "LLVM Profile Note: " "Override old profile path \"%s\" via %s to \"%s\" via %s.\n" , OldFilenamePat, getPNSStr(OldPNS), lprofCurFilename.FilenamePat , getPNSStr(PNS)); | |||
| ||||
476 | OldFilenamePat, getPNSStr(OldPNS), lprofCurFilename.FilenamePat,fprintf(stderr, "LLVM Profile Note: " "Override old profile path \"%s\" via %s to \"%s\" via %s.\n" , OldFilenamePat, getPNSStr(OldPNS), lprofCurFilename.FilenamePat , getPNSStr(PNS)); | |||
477 | getPNSStr(PNS))fprintf(stderr, "LLVM Profile Note: " "Override old profile path \"%s\" via %s to \"%s\" via %s.\n" , OldFilenamePat, getPNSStr(OldPNS), lprofCurFilename.FilenamePat , getPNSStr(PNS));; | |||
478 | } | |||
479 | ||||
480 | truncateCurrentFile(); | |||
481 | } | |||
482 | ||||
483 | /* Return buffer length that is required to store the current profile | |||
484 | * filename with PID and hostname substitutions. */ | |||
485 | /* The length to hold uint64_t followed by 2 digit pool id including '_' */ | |||
486 | #define SIGLEN24 24 | |||
487 | static int getCurFilenameLength() { | |||
488 | int Len; | |||
489 | if (!lprofCurFilename.FilenamePat || !lprofCurFilename.FilenamePat[0]) | |||
490 | return 0; | |||
491 | ||||
492 | if (!(lprofCurFilename.NumPids || lprofCurFilename.NumHosts || | |||
493 | lprofCurFilename.MergePoolSize)) | |||
494 | return strlen(lprofCurFilename.FilenamePat); | |||
495 | ||||
496 | Len = strlen(lprofCurFilename.FilenamePat) + | |||
497 | lprofCurFilename.NumPids * (strlen(lprofCurFilename.PidChars) - 2) + | |||
498 | lprofCurFilename.NumHosts * (strlen(lprofCurFilename.Hostname) - 2); | |||
499 | if (lprofCurFilename.MergePoolSize) | |||
500 | Len += SIGLEN24; | |||
501 | return Len; | |||
502 | } | |||
503 | ||||
504 | /* Return the pointer to the current profile file name (after substituting | |||
505 | * PIDs and Hostnames in filename pattern. \p FilenameBuf is the buffer | |||
506 | * to store the resulting filename. If no substitution is needed, the | |||
507 | * current filename pattern string is directly returned, unless ForceUseBuf | |||
508 | * is enabled. */ | |||
509 | static const char *getCurFilename(char *FilenameBuf, int ForceUseBuf) { | |||
510 | int I, J, PidLength, HostNameLength, FilenamePatLength; | |||
511 | const char *FilenamePat = lprofCurFilename.FilenamePat; | |||
512 | ||||
513 | if (!lprofCurFilename.FilenamePat || !lprofCurFilename.FilenamePat[0]) | |||
514 | return 0; | |||
515 | ||||
516 | if (!(lprofCurFilename.NumPids || lprofCurFilename.NumHosts || | |||
517 | lprofCurFilename.MergePoolSize)) { | |||
518 | if (!ForceUseBuf) | |||
519 | return lprofCurFilename.FilenamePat; | |||
520 | ||||
521 | FilenamePatLength = strlen(lprofCurFilename.FilenamePat); | |||
522 | memcpy(FilenameBuf, lprofCurFilename.FilenamePat, FilenamePatLength); | |||
523 | FilenameBuf[FilenamePatLength] = '\0'; | |||
524 | return FilenameBuf; | |||
525 | } | |||
526 | ||||
527 | PidLength = strlen(lprofCurFilename.PidChars); | |||
528 | HostNameLength = strlen(lprofCurFilename.Hostname); | |||
529 | /* Construct the new filename. */ | |||
530 | for (I = 0, J = 0; FilenamePat[I]; ++I) | |||
531 | if (FilenamePat[I] == '%') { | |||
532 | if (FilenamePat[++I] == 'p') { | |||
533 | memcpy(FilenameBuf + J, lprofCurFilename.PidChars, PidLength); | |||
534 | J += PidLength; | |||
535 | } else if (FilenamePat[I] == 'h') { | |||
536 | memcpy(FilenameBuf + J, lprofCurFilename.Hostname, HostNameLength); | |||
537 | J += HostNameLength; | |||
538 | } else if (containsMergeSpecifier(FilenamePat, I)) { | |||
539 | char LoadModuleSignature[SIGLEN24]; | |||
540 | int S; | |||
541 | int ProfilePoolId = getpid() % lprofCurFilename.MergePoolSize; | |||
542 | S = snprintf(LoadModuleSignature, SIGLEN24, "%" PRIu64"l" "u" "_%d", | |||
543 | lprofGetLoadModuleSignature(), ProfilePoolId); | |||
544 | if (S == -1 || S > SIGLEN24) | |||
545 | S = SIGLEN24; | |||
546 | memcpy(FilenameBuf + J, LoadModuleSignature, S); | |||
547 | J += S; | |||
548 | if (FilenamePat[I] != 'm') | |||
549 | I++; | |||
550 | } | |||
551 | /* Drop any unknown substitutions. */ | |||
552 | } else | |||
553 | FilenameBuf[J++] = FilenamePat[I]; | |||
554 | FilenameBuf[J] = 0; | |||
555 | ||||
556 | return FilenameBuf; | |||
557 | } | |||
558 | ||||
559 | /* Returns the pointer to the environment variable | |||
560 | * string. Returns null if the env var is not set. */ | |||
561 | static const char *getFilenamePatFromEnv(void) { | |||
562 | const char *Filename = getenv("LLVM_PROFILE_FILE"); | |||
563 | if (!Filename || !Filename[0]) | |||
564 | return 0; | |||
565 | return Filename; | |||
566 | } | |||
567 | ||||
568 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
569 | const char *__llvm_profile_get_path_prefix(void) { | |||
570 | int Length; | |||
571 | char *FilenameBuf, *Prefix; | |||
572 | const char *Filename, *PrefixEnd; | |||
573 | ||||
574 | if (lprofCurFilename.ProfilePathPrefix) | |||
575 | return lprofCurFilename.ProfilePathPrefix; | |||
576 | ||||
577 | Length = getCurFilenameLength(); | |||
578 | FilenameBuf = (char *)COMPILER_RT_ALLOCA__builtin_alloca(Length + 1); | |||
579 | Filename = getCurFilename(FilenameBuf, 0); | |||
580 | if (!Filename) | |||
581 | return "\0"; | |||
582 | ||||
583 | PrefixEnd = lprofFindLastDirSeparator(Filename); | |||
584 | if (!PrefixEnd) | |||
585 | return "\0"; | |||
586 | ||||
587 | Length = PrefixEnd - Filename + 1; | |||
588 | Prefix = (char *)malloc(Length + 1); | |||
589 | if (!Prefix) { | |||
590 | PROF_ERR("Failed to %s\n", "allocate memory.")fprintf(stderr, "LLVM Profile Error: " "Failed to %s\n", "allocate memory." );; | |||
591 | return "\0"; | |||
592 | } | |||
593 | memcpy(Prefix, Filename, Length); | |||
594 | Prefix[Length] = '\0'; | |||
595 | lprofCurFilename.ProfilePathPrefix = Prefix; | |||
596 | return Prefix; | |||
597 | } | |||
598 | ||||
599 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
600 | const char *__llvm_profile_get_filename(void) { | |||
601 | int Length; | |||
602 | char *FilenameBuf; | |||
603 | const char *Filename; | |||
604 | ||||
605 | if (lprofCurFilename.Filename) | |||
606 | return lprofCurFilename.Filename; | |||
607 | ||||
608 | Length = getCurFilenameLength(); | |||
609 | FilenameBuf = (char *)malloc(Length + 1); | |||
610 | if (!FilenameBuf) { | |||
611 | PROF_ERR("Failed to %s\n", "allocate memory.")fprintf(stderr, "LLVM Profile Error: " "Failed to %s\n", "allocate memory." );; | |||
612 | return "\0"; | |||
613 | } | |||
614 | Filename = getCurFilename(FilenameBuf, 1); | |||
615 | if (!Filename) | |||
616 | return "\0"; | |||
617 | ||||
618 | lprofCurFilename.Filename = FilenameBuf; | |||
619 | return FilenameBuf; | |||
620 | } | |||
621 | ||||
622 | /* This method is invoked by the runtime initialization hook | |||
623 | * InstrProfilingRuntime.o if it is linked in. Both user specified | |||
624 | * profile path via -fprofile-instr-generate= and LLVM_PROFILE_FILE | |||
625 | * environment variable can override this default value. */ | |||
626 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
627 | void __llvm_profile_initialize_file(void) { | |||
628 | const char *EnvFilenamePat; | |||
629 | const char *SelectedPat = NULL((void*)0); | |||
630 | ProfileNameSpecifier PNS = PNS_unknown; | |||
631 | int hasCommandLineOverrider = (INSTR_PROF_PROFILE_NAME_VAR__llvm_profile_filename[0] != 0); | |||
632 | ||||
633 | EnvFilenamePat = getFilenamePatFromEnv(); | |||
634 | if (EnvFilenamePat) { | |||
635 | /* Pass CopyFilenamePat = 1, to ensure that the filename would be valid | |||
636 | at the moment when __llvm_profile_write_file() gets executed. */ | |||
637 | parseAndSetFilename(EnvFilenamePat, PNS_environment, 1); | |||
638 | return; | |||
639 | } else if (hasCommandLineOverrider) { | |||
640 | SelectedPat = INSTR_PROF_PROFILE_NAME_VAR__llvm_profile_filename; | |||
641 | PNS = PNS_command_line; | |||
642 | } else { | |||
643 | SelectedPat = NULL((void*)0); | |||
644 | PNS = PNS_default; | |||
645 | } | |||
646 | ||||
647 | parseAndSetFilename(SelectedPat, PNS, 0); | |||
648 | } | |||
649 | ||||
650 | /* This API is directly called by the user application code. It has the | |||
651 | * highest precedence compared with LLVM_PROFILE_FILE environment variable | |||
652 | * and command line option -fprofile-instr-generate=<profile_name>. | |||
653 | */ | |||
654 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
655 | void __llvm_profile_set_filename(const char *FilenamePat) { | |||
656 | parseAndSetFilename(FilenamePat, PNS_runtime_api, 1); | |||
| ||||
657 | } | |||
658 | ||||
659 | /* The public API for writing profile data into the file with name | |||
660 | * set by previous calls to __llvm_profile_set_filename or | |||
661 | * __llvm_profile_override_default_filename or | |||
662 | * __llvm_profile_initialize_file. */ | |||
663 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
664 | int __llvm_profile_write_file(void) { | |||
665 | int rc, Length; | |||
666 | const char *Filename; | |||
667 | char *FilenameBuf; | |||
668 | int PDeathSig = 0; | |||
669 | ||||
670 | if (lprofProfileDumped()) { | |||
671 | PROF_NOTE("Profile data not written to file: %s.\n", "already written")fprintf(stderr, "LLVM Profile Note: " "Profile data not written to file: %s.\n" , "already written");; | |||
672 | return 0; | |||
673 | } | |||
674 | ||||
675 | Length = getCurFilenameLength(); | |||
676 | FilenameBuf = (char *)COMPILER_RT_ALLOCA__builtin_alloca(Length + 1); | |||
677 | Filename = getCurFilename(FilenameBuf, 0); | |||
678 | ||||
679 | /* Check the filename. */ | |||
680 | if (!Filename) { | |||
681 | PROF_ERR("Failed to write file : %s\n", "Filename not set")fprintf(stderr, "LLVM Profile Error: " "Failed to write file : %s\n" , "Filename not set");; | |||
682 | return -1; | |||
683 | } | |||
684 | ||||
685 | /* Check if there is llvm/runtime version mismatch. */ | |||
686 | if (GET_VERSION(__llvm_profile_get_version())((__llvm_profile_get_version()) & ~0xff00000000000000ULL) != INSTR_PROF_RAW_VERSION4) { | |||
687 | PROF_ERR("Runtime and instrumentation version mismatch : "fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
688 | "expected %d, but get %d\n",fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
689 | INSTR_PROF_RAW_VERSION,fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
690 | (int)GET_VERSION(__llvm_profile_get_version()))fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL));; | |||
691 | return -1; | |||
692 | } | |||
693 | ||||
694 | // Temporarily suspend getting SIGKILL when the parent exits. | |||
695 | PDeathSig = lprofSuspendSigKill(); | |||
696 | ||||
697 | /* Write profile data to the file. */ | |||
698 | rc = writeFile(Filename); | |||
699 | if (rc) | |||
700 | PROF_ERR("Failed to write file \"%s\": %s\n", Filename, strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Failed to write file \"%s\": %s\n" , Filename, strerror((*__errno_location ())));; | |||
701 | ||||
702 | // Restore SIGKILL. | |||
703 | if (PDeathSig == 1) | |||
704 | lprofRestoreSigKill(); | |||
705 | ||||
706 | return rc; | |||
707 | } | |||
708 | ||||
709 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
710 | int __llvm_profile_dump(void) { | |||
711 | if (!doMerging()) | |||
712 | PROF_WARN("Later invocation of __llvm_profile_dump can lead to clobbering "fprintf(stderr, "LLVM Profile Warning: " "Later invocation of __llvm_profile_dump can lead to clobbering " " of previously dumped profile data : %s. Either use %%m " "in profile name or change profile name before dumping.\n" , "online profile merging is not on"); | |||
713 | " of previously dumped profile data : %s. Either use %%m "fprintf(stderr, "LLVM Profile Warning: " "Later invocation of __llvm_profile_dump can lead to clobbering " " of previously dumped profile data : %s. Either use %%m " "in profile name or change profile name before dumping.\n" , "online profile merging is not on"); | |||
714 | "in profile name or change profile name before dumping.\n",fprintf(stderr, "LLVM Profile Warning: " "Later invocation of __llvm_profile_dump can lead to clobbering " " of previously dumped profile data : %s. Either use %%m " "in profile name or change profile name before dumping.\n" , "online profile merging is not on"); | |||
715 | "online profile merging is not on")fprintf(stderr, "LLVM Profile Warning: " "Later invocation of __llvm_profile_dump can lead to clobbering " " of previously dumped profile data : %s. Either use %%m " "in profile name or change profile name before dumping.\n" , "online profile merging is not on");; | |||
716 | int rc = __llvm_profile_write_file(); | |||
717 | lprofSetProfileDumped(); | |||
718 | return rc; | |||
719 | } | |||
720 | ||||
721 | /* Order file data will be saved in a file with suffx .order. */ | |||
722 | static const char *OrderFileSuffix = ".order"; | |||
723 | ||||
724 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
725 | int __llvm_orderfile_write_file(void) { | |||
726 | int rc, Length, LengthBeforeAppend, SuffixLength; | |||
727 | const char *Filename; | |||
728 | char *FilenameBuf; | |||
729 | int PDeathSig = 0; | |||
730 | ||||
731 | SuffixLength = strlen(OrderFileSuffix); | |||
732 | Length = getCurFilenameLength() + SuffixLength; | |||
733 | FilenameBuf = (char *)COMPILER_RT_ALLOCA__builtin_alloca(Length + 1); | |||
734 | Filename = getCurFilename(FilenameBuf, 1); | |||
735 | ||||
736 | /* Check the filename. */ | |||
737 | if (!Filename) { | |||
738 | PROF_ERR("Failed to write file : %s\n", "Filename not set")fprintf(stderr, "LLVM Profile Error: " "Failed to write file : %s\n" , "Filename not set");; | |||
739 | return -1; | |||
740 | } | |||
741 | ||||
742 | /* Append order file suffix */ | |||
743 | LengthBeforeAppend = strlen(Filename); | |||
744 | memcpy(FilenameBuf + LengthBeforeAppend, OrderFileSuffix, SuffixLength); | |||
745 | FilenameBuf[LengthBeforeAppend + SuffixLength] = '\0'; | |||
746 | ||||
747 | /* Check if there is llvm/runtime version mismatch. */ | |||
748 | if (GET_VERSION(__llvm_profile_get_version())((__llvm_profile_get_version()) & ~0xff00000000000000ULL) != INSTR_PROF_RAW_VERSION4) { | |||
749 | PROF_ERR("Runtime and instrumentation version mismatch : "fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
750 | "expected %d, but get %d\n",fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
751 | INSTR_PROF_RAW_VERSION,fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL)); | |||
752 | (int)GET_VERSION(__llvm_profile_get_version()))fprintf(stderr, "LLVM Profile Error: " "Runtime and instrumentation version mismatch : " "expected %d, but get %d\n", 4, (int)((__llvm_profile_get_version ()) & ~0xff00000000000000ULL));; | |||
753 | return -1; | |||
754 | } | |||
755 | ||||
756 | // Temporarily suspend getting SIGKILL when the parent exits. | |||
757 | PDeathSig = lprofSuspendSigKill(); | |||
758 | ||||
759 | /* Write order data to the file. */ | |||
760 | rc = writeOrderFile(Filename); | |||
761 | if (rc) | |||
762 | PROF_ERR("Failed to write file \"%s\": %s\n", Filename, strerror(errno))fprintf(stderr, "LLVM Profile Error: " "Failed to write file \"%s\": %s\n" , Filename, strerror((*__errno_location ())));; | |||
763 | ||||
764 | // Restore SIGKILL. | |||
765 | if (PDeathSig == 1) | |||
766 | lprofRestoreSigKill(); | |||
767 | ||||
768 | return rc; | |||
769 | } | |||
770 | ||||
771 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
772 | int __llvm_orderfile_dump(void) { | |||
773 | int rc = __llvm_orderfile_write_file(); | |||
774 | return rc; | |||
775 | } | |||
776 | ||||
777 | static void writeFileWithoutReturn(void) { __llvm_profile_write_file(); } | |||
778 | ||||
779 | COMPILER_RT_VISIBILITY__attribute__((visibility("hidden"))) | |||
780 | int __llvm_profile_register_write_file_atexit(void) { | |||
781 | static int HasBeenRegistered = 0; | |||
782 | ||||
783 | if (HasBeenRegistered) | |||
784 | return 0; | |||
785 | ||||
786 | lprofSetupValueProfiler(); | |||
787 | ||||
788 | HasBeenRegistered = 1; | |||
789 | return atexit(writeFileWithoutReturn); | |||
790 | } | |||
791 | ||||
792 | #endif |