1 /*===- InstrProfilingUtil.h - Support library for PGO instrumentation -----===*\ 2 |* 3 |* The LLVM Compiler Infrastructure 4 |* 5 |* This file is distributed under the University of Illinois Open Source 6 |* License. See LICENSE.TXT for details. 7 |* 8 \*===----------------------------------------------------------------------===*/ 9 10 #ifndef PROFILE_INSTRPROFILINGUTIL_H 11 #define PROFILE_INSTRPROFILINGUTIL_H 12 13 #include <stddef.h> 14 #include <stdio.h> 15 16 /*! \brief Create a directory tree. */ 17 void __llvm_profile_recursive_mkdir(char *Pathname); 18 19 int lprofLockFd(int fd); 20 int lprofUnlockFd(int fd); 21 22 /*! Open file \c Filename for read+write with write 23 * lock for exclusive access. The caller will block 24 * if the lock is already held by another process. */ 25 FILE *lprofOpenFileEx(const char *Filename); 26 /* PS4 doesn't have getenv. Define a shim. */ 27 #if __ORBIS__ 28 static inline char *getenv(const char *name) { return NULL; } 29 #endif /* #if __ORBIS__ */ 30 31 /* GCOV_PREFIX and GCOV_PREFIX_STRIP support */ 32 /* Return the path prefix specified by GCOV_PREFIX environment variable. 33 * If GCOV_PREFIX_STRIP is also specified, the strip level (integer value) 34 * is returned via \c *PrefixStrip. The prefix length is stored in *PrefixLen. 35 */ 36 const char *lprofGetPathPrefix(int *PrefixStrip, size_t *PrefixLen); 37 /* Apply the path prefix specified in \c Prefix to path string in \c PathStr, 38 * and store the result to buffer pointed to by \c Buffer. If \c PrefixStrip 39 * is not zero, path prefixes are stripped from \c PathStr (the level of 40 * stripping is specified by \c PrefixStrip) before \c Prefix is added. 41 */ 42 void lprofApplyPathPrefix(char *Dest, const char *PathStr, const char *Prefix, 43 size_t PrefixLen, int PrefixStrip); 44 45 /* Returns a pointer to the first occurrence of \c DIR_SEPARATOR char in 46 * the string \c Path, or NULL if the char is not found. */ 47 const char *lprofFindFirstDirSeparator(const char *Path); 48 /* Returns a pointer to the last occurrence of \c DIR_SEPARATOR char in 49 * the string \c Path, or NULL if the char is not found. */ 50 const char *lprofFindLastDirSeparator(const char *Path); 51 52 int lprofGetHostName(char *Name, int Len); 53 54 unsigned lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV); 55 void *lprofPtrFetchAdd(void **Mem, long ByteIncr); 56 57 /* Temporarily suspend SIGKILL. Return value of 1 means a restore is needed. 58 * Other return values mean no restore is needed. 59 */ 60 int lprofSuspendSigKill(); 61 62 /* Restore previously suspended SIGKILL. */ 63 void lprofRestoreSigKill(); 64 65 #endif /* PROFILE_INSTRPROFILINGUTIL_H */ 66