1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/compiler-rt/include/sanitizer/hwasan_interface.h b/contrib/compiler-rt/include/sanitizer/hwasan_interface.h
index 0c306cf279e2..1affd875a11b 100644
--- a/contrib/compiler-rt/include/sanitizer/hwasan_interface.h
+++ b/contrib/compiler-rt/include/sanitizer/hwasan_interface.h
@@ -19,6 +19,12 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
+  // Initialize shadow but not the rest of the runtime.
+  // Does not call libc unless there is an error.
+  // Can be called multiple times, or not at all (in which case shadow will
+  // be initialized in compiler-inserted __hwasan_init() call).
+  void __hwasan_shadow_init(void);
+
   // This function may be optionally provided by user and should return
   // a string containing HWASan runtime options. See asan_flags.h for details.
   const char* __hwasan_default_options(void);
@@ -26,6 +32,51 @@ extern "C" {
   void __hwasan_enable_allocator_tagging(void);
   void __hwasan_disable_allocator_tagging(void);
 
+  // Mark region of memory with the given tag. Both address and size need to be
+  // 16-byte aligned.
+  void __hwasan_tag_memory(const volatile void *p, unsigned char tag,
+                           size_t size);
+
+  /// Set pointer tag. Previous tag is lost.
+  void *__hwasan_tag_pointer(const volatile void *p, unsigned char tag);
+
+  // Set memory tag from the current SP address to the given address to zero.
+  // This is meant to annotate longjmp and other non-local jumps.
+  // This function needs to know the (almost) exact destination frame address;
+  // clearing shadow for the entire thread stack like __asan_handle_no_return
+  // does would cause false reports.
+  void __hwasan_handle_longjmp(const void *sp_dst);
+
+  // Libc hook for thread creation. Should be called in the child thread before
+  // any instrumented code.
+  void __hwasan_thread_enter();
+
+  // Libc hook for thread destruction. No instrumented code should run after
+  // this call.
+  void __hwasan_thread_exit();
+
+  // Print shadow and origin for the memory range to stderr in a human-readable
+  // format.
+  void __hwasan_print_shadow(const volatile void *x, size_t size);
+
+  // Print one-line report about the memory usage of the current process.
+  void __hwasan_print_memory_usage();
+
+  int __sanitizer_posix_memalign(void **memptr, size_t alignment, size_t size);
+  void * __sanitizer_memalign(size_t alignment, size_t size);
+  void * __sanitizer_aligned_alloc(size_t alignment, size_t size);
+  void * __sanitizer___libc_memalign(size_t alignment, size_t size);
+  void * __sanitizer_valloc(size_t size);
+  void * __sanitizer_pvalloc(size_t size);
+  void __sanitizer_free(void *ptr);
+  void __sanitizer_cfree(void *ptr);
+  size_t __sanitizer_malloc_usable_size(const void *ptr);
+  struct mallinfo __sanitizer_mallinfo();
+  int __sanitizer_mallopt(int cmd, int value);
+  void __sanitizer_malloc_stats(void);
+  void * __sanitizer_calloc(size_t nmemb, size_t size);
+  void * __sanitizer_realloc(void *ptr, size_t size);
+  void * __sanitizer_malloc(size_t size);
 #ifdef __cplusplus
 }  // extern "C"
 #endif