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83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
//===-- sanitizer_libc.h ----------------------------------------*- C++ -*-===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is shared between AddressSanitizer and ThreadSanitizer
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// run-time libraries.
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// These tools can not use some of the libc functions directly because those
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// functions are intercepted. Instead, we implement a tiny subset of libc here.
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// FIXME: Some of functions declared in this file are in fact POSIX, not libc.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_LIBC_H
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#define SANITIZER_LIBC_H
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// ----------- ATTENTION -------------
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// This header should NOT include any other headers from sanitizer runtime.
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#include "sanitizer_internal_defs.h"
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namespace __sanitizer {
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// internal_X() is a custom implementation of X() for use in RTL.
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// String functions
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s64 internal_atoll(const char *nptr);
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void *internal_memchr(const void *s, int c, uptr n);
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void *internal_memrchr(const void *s, int c, uptr n);
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int internal_memcmp(const void* s1, const void* s2, uptr n);
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void *internal_memcpy(void *dest, const void *src, uptr n);
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void *internal_memmove(void *dest, const void *src, uptr n);
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// Should not be used in performance-critical places.
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void *internal_memset(void *s, int c, uptr n);
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char* internal_strchr(const char *s, int c);
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char *internal_strchrnul(const char *s, int c);
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int internal_strcmp(const char *s1, const char *s2);
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uptr internal_strcspn(const char *s, const char *reject);
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char *internal_strdup(const char *s);
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uptr internal_strlen(const char *s);
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uptr internal_strlcat(char *dst, const char *src, uptr maxlen);
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char *internal_strncat(char *dst, const char *src, uptr n);
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int internal_strncmp(const char *s1, const char *s2, uptr n);
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uptr internal_strlcpy(char *dst, const char *src, uptr maxlen);
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char *internal_strncpy(char *dst, const char *src, uptr n);
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uptr internal_strnlen(const char *s, uptr maxlen);
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char *internal_strrchr(const char *s, int c);
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char *internal_strstr(const char *haystack, const char *needle);
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// Works only for base=10 and doesn't set errno.
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s64 internal_simple_strtoll(const char *nptr, const char **endptr, int base);
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int internal_snprintf(char *buffer, uptr length, const char *format, ...);
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// Return true if all bytes in [mem, mem+size) are zero.
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// Optimized for the case when the result is true.
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bool mem_is_zero(const char *mem, uptr size);
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// I/O
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// Define these as macros so we can use them in linker initialized global
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// structs without dynamic initialization.
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#define kInvalidFd ((fd_t)-1)
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#define kStdinFd ((fd_t)0)
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#define kStdoutFd ((fd_t)1)
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#define kStderrFd ((fd_t)2)
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uptr internal_ftruncate(fd_t fd, uptr size);
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// OS
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void NORETURN internal__exit(int exitcode);
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unsigned int internal_sleep(unsigned int seconds);
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uptr internal_getpid();
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uptr internal_getppid();
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// Threading
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uptr internal_sched_yield();
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// Error handling
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bool internal_iserror(uptr retval, int *rverrno = nullptr);
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} // namespace __sanitizer
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#endif // SANITIZER_LIBC_H
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