1 files changed, 69 insertions, 0 deletions
diff --git a/lib/sanitizer_common/sanitizer_libc.h b/lib/sanitizer_common/sanitizer_libc.h
new file mode 100644
index 000000000000..8da4286cef73
--- /dev/null
+++ b/lib/sanitizer_common/sanitizer_libc.h
@@ -0,0 +1,69 @@
+//===-- 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_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);
+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);
+int internal_snprintf(char *buffer, uptr length, const char *format, ...);
+
+// Threading
+int internal_sched_yield();
+
+}  // namespace __sanitizer
+
+#endif  // SANITIZER_LIBC_H