//===-- sanitizer_libc.h ----------------------------------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // 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. // NOTE: This file may be included into user code. //===----------------------------------------------------------------------===// #ifndef SANITIZER_LIBC_H #define SANITIZER_LIBC_H // ----------- ATTENTION ------------- // This header should NOT include any other headers from sanitizer runtime. #include "sanitizer/common_interface_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); // 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); 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); // Memory void *internal_mmap(void *addr, uptr length, int prot, int flags, int fd, u64 offset); int internal_munmap(void *addr, uptr length); // I/O typedef int fd_t; const fd_t kInvalidFd = -1; int internal_close(fd_t fd); fd_t internal_open(const char *filename, bool write); uptr internal_read(fd_t fd, void *buf, uptr count); uptr internal_write(fd_t fd, const void *buf, uptr count); uptr internal_filesize(fd_t fd); // -1 on error. int internal_dup2(int oldfd, int newfd); uptr internal_readlink(const char *path, char *buf, uptr bufsize); int internal_snprintf(char *buffer, uptr length, const char *format, ...); // Threading int internal_sched_yield(); } // namespace __sanitizer #endif // SANITIZER_LIBC_H