1 files changed, 108 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_libc.h b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
new file mode 100644
index 000000000000..1906569e2a5f
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
@@ -0,0 +1,108 @@
+//===-- sanitizer_libc.h ----------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// 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.
+// FIXME: Some of functions declared in this file are in fact POSIX, not libc.
+//===----------------------------------------------------------------------===//
+
+#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.
+
+extern "C" {
+// These are used as builtin replacements; see sanitizer_redefine_builtins.h.
+// In normal runtime code, use the __sanitizer::internal_X() aliases instead.
+SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memcpy(void *dest,
+                                                                const void *src,
+                                                                uptr n);
+SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memmove(
+    void *dest, const void *src, uptr n);
+SANITIZER_INTERFACE_ATTRIBUTE void *__sanitizer_internal_memset(void *s, int c,
+                                                                uptr n);
+}  // extern "C"
+
+// String functions
+s64 internal_atoll(const char *nptr);
+void *internal_memchr(const void *s, int c, uptr n);
+void *internal_memrchr(const void *s, int c, uptr n);
+int internal_memcmp(const void* s1, const void* s2, uptr n);
+ALWAYS_INLINE void *internal_memcpy(void *dest, const void *src, uptr n) {
+  return __sanitizer_internal_memcpy(dest, src, n);
+}
+ALWAYS_INLINE void *internal_memmove(void *dest, const void *src, uptr n) {
+  return __sanitizer_internal_memmove(dest, src, n);
+}
+// Should not be used in performance-critical places.
+ALWAYS_INLINE void *internal_memset(void *s, int c, uptr n) {
+  return __sanitizer_internal_memset(s, c, 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);
+uptr internal_strlcat(char *dst, const char *src, uptr maxlen);
+char *internal_strncat(char *dst, const char *src, uptr n);
+int internal_strncmp(const char *s1, const char *s2, uptr n);
+uptr internal_strlcpy(char *dst, const char *src, uptr maxlen);
+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);
+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, const char **endptr, int base);
+int internal_snprintf(char *buffer, uptr length, const char *format, ...)
+    FORMAT(3, 4);
+uptr internal_wcslen(const wchar_t *s);
+uptr internal_wcsnlen(const wchar_t *s, uptr maxlen);
+wchar_t *internal_wcscpy(wchar_t *dst, const wchar_t *src);
+wchar_t *internal_wcsncpy(wchar_t *dst, const wchar_t *src, uptr maxlen);
+// 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);
+
+// I/O
+// Define these as macros so we can use them in linker initialized global
+// structs without dynamic initialization.
+#define kInvalidFd ((fd_t)-1)
+#define kStdinFd ((fd_t)0)
+#define kStdoutFd ((fd_t)1)
+#define kStderrFd ((fd_t)2)
+
+uptr internal_ftruncate(fd_t fd, uptr size);
+
+// OS
+void NORETURN internal__exit(int exitcode);
+void internal_sleep(unsigned seconds);
+void internal_usleep(u64 useconds);
+
+uptr internal_getpid();
+uptr internal_getppid();
+
+int internal_dlinfo(void *handle, int request, void *p);
+
+// Threading
+uptr internal_sched_yield();
+
+// Error handling
+bool internal_iserror(uptr retval, int *rverrno = nullptr);
+
+} // namespace __sanitizer
+
+#endif // SANITIZER_LIBC_H