llvm-project/compiler-rt/lib/profile/InstrProfilingUtil.h

63 lines
2.5 KiB
C

/*===- InstrProfilingUtil.h - Support library for PGO instrumentation -----===*\
|*
|* The LLVM Compiler Infrastructure
|*
|* This file is distributed under the University of Illinois Open Source
|* License. See LICENSE.TXT for details.
|*
\*===----------------------------------------------------------------------===*/
#ifndef PROFILE_INSTRPROFILINGUTIL_H
#define PROFILE_INSTRPROFILINGUTIL_H
#include <stddef.h>
#include <stdio.h>
/*! \brief Create a directory tree. */
void __llvm_profile_recursive_mkdir(char *Pathname);
/*! Open file \c Filename for read+write with write
* lock for exclusive access. The caller will block
* if the lock is already held by another process. */
FILE *lprofOpenFileEx(const char *Filename);
/* PS4 doesn't have getenv. Define a shim. */
#if __ORBIS__
static inline char *getenv(const char *name) { return NULL; }
#endif /* #if __ORBIS__ */
/* GCOV_PREFIX and GCOV_PREFIX_STRIP support */
/* Return the path prefix specified by GCOV_PREFIX environment variable.
* If GCOV_PREFIX_STRIP is also specified, the strip level (integer value)
* is returned via \c *PrefixStrip. The prefix length is stored in *PrefixLen.
*/
const char *lprofGetPathPrefix(int *PrefixStrip, size_t *PrefixLen);
/* Apply the path prefix specified in \c Prefix to path string in \c PathStr,
* and store the result to buffer pointed to by \c Buffer. If \c PrefixStrip
* is not zero, path prefixes are stripped from \c PathStr (the level of
* stripping is specified by \c PrefixStrip) before \c Prefix is added.
*/
void lprofApplyPathPrefix(char *Dest, const char *PathStr, const char *Prefix,
size_t PrefixLen, int PrefixStrip);
/* Returns a pointer to the first occurrence of \c DIR_SEPARATOR char in
* the string \c Path, or NULL if the char is not found. */
const char *lprofFindFirstDirSeparator(const char *Path);
/* Returns a pointer to the last occurrence of \c DIR_SEPARATOR char in
* the string \c Path, or NULL if the char is not found. */
const char *lprofFindLastDirSeparator(const char *Path);
int lprofGetHostName(char *Name, int Len);
unsigned lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV);
void *lprofPtrFetchAdd(void **Mem, long ByteIncr);
/* Temporarily suspend SIGKILL. Return value of 1 means a restore is needed.
* Other return values mean no restore is needed.
*/
int lprofSuspendSigKill(void);
/* Restore previously suspended SIGKILL. */
void lprofRestoreSigKill(void);
#endif /* PROFILE_INSTRPROFILINGUTIL_H */