diff options
Diffstat (limited to 'include/sanitizer/hwasan_interface.h')
| -rw-r--r-- | include/sanitizer/hwasan_interface.h | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/include/sanitizer/hwasan_interface.h b/include/sanitizer/hwasan_interface.h index 1affd875a11b..4c9ad13aa0cb 100644 --- a/include/sanitizer/hwasan_interface.h +++ b/include/sanitizer/hwasan_interface.h @@ -1,9 +1,8 @@ //===-- sanitizer/asan_interface.h ------------------------------*- C++ -*-===// // -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. +// 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 // //===----------------------------------------------------------------------===// // @@ -19,11 +18,15 @@ #ifdef __cplusplus extern "C" { #endif - // Initialize shadow but not the rest of the runtime. + // Libc hook for program startup in statically linked executables. + // Initializes enough of the runtime to run instrumented code. This function + // should only be called in statically linked executables because it modifies + // the GOT, which won't work in regular binaries because RELRO will already + // have been applied by the time the function is called. This also means that + // the function should be called before libc applies RELRO. // 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); + // Can be called multiple times. + void __hwasan_init_static(void); // This function may be optionally provided by user and should return // a string containing HWASan runtime options. See asan_flags.h for details. @@ -47,6 +50,10 @@ extern "C" { // does would cause false reports. void __hwasan_handle_longjmp(const void *sp_dst); + // Set memory tag for the part of the current thread stack below sp_dst to + // zero. Call this in vfork() before returning in the parent process. + void __hwasan_handle_vfork(const void *sp_dst); + // Libc hook for thread creation. Should be called in the child thread before // any instrumented code. void __hwasan_thread_enter(); @@ -62,6 +69,10 @@ extern "C" { // Print one-line report about the memory usage of the current process. void __hwasan_print_memory_usage(); + /* Returns the offset of the first byte in the memory range that can not be + * accessed through the pointer in x, or -1 if the whole range is good. */ + intptr_t __hwasan_test_shadow(const volatile void *x, size_t size); + 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); @@ -76,6 +87,7 @@ extern "C" { void __sanitizer_malloc_stats(void); void * __sanitizer_calloc(size_t nmemb, size_t size); void * __sanitizer_realloc(void *ptr, size_t size); + void * __sanitizer_reallocarray(void *ptr, size_t nmemb, size_t size); void * __sanitizer_malloc(size_t size); #ifdef __cplusplus } // extern "C" |