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Diffstat (limited to 'gcc-4.9/libsanitizer/sanitizer_common/sanitizer_libc.h')
-rw-r--r-- | gcc-4.9/libsanitizer/sanitizer_common/sanitizer_libc.h | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_libc.h b/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_libc.h new file mode 100644 index 000000000..ae23bc45e --- /dev/null +++ b/gcc-4.9/libsanitizer/sanitizer_common/sanitizer_libc.h @@ -0,0 +1,100 @@ +//===-- sanitizer_libc.h ----------------------------------------*- C++ -*-===// +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file is shared between AddressSanitizer and ThreadSanitizer +// run-time libraries. +// These tools can not use some of the libc functions directly because those +// functions are intercepted. Instead, we implement a tiny subset of libc here. +//===----------------------------------------------------------------------===// +#ifndef SANITIZER_LIBC_H +#define SANITIZER_LIBC_H + +// ----------- ATTENTION ------------- +// This header should NOT include any other headers from sanitizer runtime. +#include "sanitizer_internal_defs.h" + +namespace __sanitizer { + +// internal_X() is a custom implementation of X() for use in RTL. + +// String functions +s64 internal_atoll(const char *nptr); +void *internal_memchr(const void *s, int c, uptr n); +int internal_memcmp(const void* s1, const void* s2, uptr n); +void *internal_memcpy(void *dest, const void *src, uptr n); +void *internal_memmove(void *dest, const void *src, uptr n); +// Set [s, s + n) to 0. Both s and n should be 16-aligned. +void internal_bzero_aligned16(void *s, uptr n); +// Should not be used in performance-critical places. +void *internal_memset(void *s, int c, uptr n); +char* internal_strchr(const char *s, int c); +char *internal_strchrnul(const char *s, int c); +int internal_strcmp(const char *s1, const char *s2); +uptr internal_strcspn(const char *s, const char *reject); +char *internal_strdup(const char *s); +uptr internal_strlen(const char *s); +char *internal_strncat(char *dst, const char *src, uptr n); +int internal_strncmp(const char *s1, const char *s2, uptr n); +char *internal_strncpy(char *dst, const char *src, uptr n); +uptr internal_strnlen(const char *s, uptr maxlen); +char *internal_strrchr(const char *s, int c); +// This is O(N^2), but we are not using it in hot places. +char *internal_strstr(const char *haystack, const char *needle); +// Works only for base=10 and doesn't set errno. +s64 internal_simple_strtoll(const char *nptr, char **endptr, int base); +int internal_snprintf(char *buffer, uptr length, const char *format, ...); + +// Return true if all bytes in [mem, mem+size) are zero. +// Optimized for the case when the result is true. +bool mem_is_zero(const char *mem, uptr size); + + +// Memory +uptr internal_mmap(void *addr, uptr length, int prot, int flags, + int fd, u64 offset); +uptr internal_munmap(void *addr, uptr length); + +// I/O +const fd_t kInvalidFd = -1; +const fd_t kStdinFd = 0; +const fd_t kStdoutFd = 1; +const fd_t kStderrFd = 2; +uptr internal_close(fd_t fd); +int internal_isatty(fd_t fd); + +// Use __sanitizer::OpenFile() instead. +uptr internal_open(const char *filename, int flags); +uptr internal_open(const char *filename, int flags, u32 mode); + +uptr internal_read(fd_t fd, void *buf, uptr count); +uptr internal_write(fd_t fd, const void *buf, uptr count); + +// OS +uptr internal_filesize(fd_t fd); // -1 on error. +uptr internal_stat(const char *path, void *buf); +uptr internal_lstat(const char *path, void *buf); +uptr internal_fstat(fd_t fd, void *buf); +uptr internal_dup2(int oldfd, int newfd); +uptr internal_readlink(const char *path, char *buf, uptr bufsize); +uptr internal_unlink(const char *path); +void NORETURN internal__exit(int exitcode); +uptr internal_lseek(fd_t fd, OFF_T offset, int whence); + +uptr internal_ptrace(int request, int pid, void *addr, void *data); +uptr internal_waitpid(int pid, int *status, int options); +uptr internal_getpid(); +uptr internal_getppid(); + +// Threading +uptr internal_sched_yield(); + +// Error handling +bool internal_iserror(uptr retval, int *rverrno = 0); + +} // namespace __sanitizer + +#endif // SANITIZER_LIBC_H |