forked from OSchip/llvm-project
88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/*===- InstrProfilingUtil.h - Support library for PGO instrumentation -----===*\
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|*
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|* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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|* See https://llvm.org/LICENSE.txt for license information.
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|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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|*
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\*===----------------------------------------------------------------------===*/
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#ifndef PROFILE_INSTRPROFILINGUTIL_H
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#define PROFILE_INSTRPROFILINGUTIL_H
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#include <inttypes.h>
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#include <stddef.h>
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#include <stdio.h>
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/*! \brief Create a directory tree. */
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void __llvm_profile_recursive_mkdir(char *Pathname);
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/*! Set the mode used when creating profile directories. */
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void __llvm_profile_set_dir_mode(unsigned Mode);
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/*! Return the directory creation mode. */
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unsigned __llvm_profile_get_dir_mode(void);
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int lprofLockFd(int fd);
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int lprofUnlockFd(int fd);
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int lprofLockFileHandle(FILE *F);
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int lprofUnlockFileHandle(FILE *F);
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/*! Open file \c Filename for read+write with write
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* lock for exclusive access. The caller will block
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* if the lock is already held by another process. */
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FILE *lprofOpenFileEx(const char *Filename);
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/* PS4 doesn't have setenv/getenv/fork. Define a shim. */
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#if __ORBIS__
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#include <sys/types.h>
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static inline char *getenv(const char *name) { return NULL; }
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static inline int setenv(const char *name, const char *value, int overwrite)
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{ return 0; }
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static pid_t fork() { return -1; }
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#endif /* #if __ORBIS__ */
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/* GCOV_PREFIX and GCOV_PREFIX_STRIP support */
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/* Return the path prefix specified by GCOV_PREFIX environment variable.
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* If GCOV_PREFIX_STRIP is also specified, the strip level (integer value)
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* is returned via \c *PrefixStrip. The prefix length is stored in *PrefixLen.
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*/
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const char *lprofGetPathPrefix(int *PrefixStrip, size_t *PrefixLen);
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/* Apply the path prefix specified in \c Prefix to path string in \c PathStr,
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* and store the result to buffer pointed to by \c Buffer. If \c PrefixStrip
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* is not zero, path prefixes are stripped from \c PathStr (the level of
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* stripping is specified by \c PrefixStrip) before \c Prefix is added.
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*/
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void lprofApplyPathPrefix(char *Dest, const char *PathStr, const char *Prefix,
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size_t PrefixLen, int PrefixStrip);
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/* Returns a pointer to the first occurrence of \c DIR_SEPARATOR char in
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* the string \c Path, or NULL if the char is not found. */
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const char *lprofFindFirstDirSeparator(const char *Path);
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/* Returns a pointer to the last occurrence of \c DIR_SEPARATOR char in
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* the string \c Path, or NULL if the char is not found. */
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const char *lprofFindLastDirSeparator(const char *Path);
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int lprofGetHostName(char *Name, int Len);
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unsigned lprofBoolCmpXchg(void **Ptr, void *OldV, void *NewV);
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void *lprofPtrFetchAdd(void **Mem, long ByteIncr);
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/* Temporarily suspend SIGKILL. Return value of 1 means a restore is needed.
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* Other return values mean no restore is needed.
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*/
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int lprofSuspendSigKill();
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/* Restore previously suspended SIGKILL. */
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void lprofRestoreSigKill();
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static inline size_t lprofRoundUpTo(size_t x, size_t boundary) {
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return (x + boundary - 1) & ~(boundary - 1);
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}
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static inline size_t lprofRoundDownTo(size_t x, size_t boundary) {
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return x & ~(boundary - 1);
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}
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int lprofReleaseMemoryPagesToOS(uintptr_t Begin, uintptr_t End);
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#endif /* PROFILE_INSTRPROFILINGUTIL_H */
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