100 lines
4.2 KiB
C++
100 lines
4.2 KiB
C++
//===-- sanitizer/asan_interface.h ------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of HWAddressSanitizer.
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//
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// Public interface header.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_HWASAN_INTERFACE_H
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#define SANITIZER_HWASAN_INTERFACE_H
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#include <sanitizer/common_interface_defs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Libc hook for program startup in statically linked executables.
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// Initializes enough of the runtime to run instrumented code. This function
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// should only be called in statically linked executables because it modifies
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// the GOT, which won't work in regular binaries because RELRO will already
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// have been applied by the time the function is called. This also means that
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// the function should be called before libc applies RELRO.
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// Does not call libc unless there is an error.
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// Can be called multiple times.
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void __hwasan_init_static(void);
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// This function may be optionally provided by user and should return
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// a string containing HWASan runtime options. See asan_flags.h for details.
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const char* __hwasan_default_options(void);
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void __hwasan_enable_allocator_tagging(void);
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void __hwasan_disable_allocator_tagging(void);
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// Mark region of memory with the given tag. Both address and size need to be
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// 16-byte aligned.
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void __hwasan_tag_memory(const volatile void *p, unsigned char tag,
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size_t size);
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/// Set pointer tag. Previous tag is lost.
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void *__hwasan_tag_pointer(const volatile void *p, unsigned char tag);
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// Set memory tag from the current SP address to the given address to zero.
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// This is meant to annotate longjmp and other non-local jumps.
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// This function needs to know the (almost) exact destination frame address;
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// clearing shadow for the entire thread stack like __asan_handle_no_return
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// does would cause false reports.
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void __hwasan_handle_longjmp(const void *sp_dst);
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// Set memory tag for the part of the current thread stack below sp_dst to
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// zero. Call this in vfork() before returning in the parent process.
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void __hwasan_handle_vfork(const void *sp_dst);
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// Libc hook for thread creation. Should be called in the child thread before
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// any instrumented code.
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void __hwasan_thread_enter();
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// Libc hook for thread destruction. No instrumented code should run after
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// this call.
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void __hwasan_thread_exit();
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// Print shadow and origin for the memory range to stderr in a human-readable
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// format.
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void __hwasan_print_shadow(const volatile void *x, size_t size);
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// Print one-line report about the memory usage of the current process.
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void __hwasan_print_memory_usage();
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/* Returns the offset of the first byte in the memory range that can not be
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* accessed through the pointer in x, or -1 if the whole range is good. */
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intptr_t __hwasan_test_shadow(const volatile void *x, size_t size);
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/* Sets the callback function to be called during HWASan error reporting. */
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void __hwasan_set_error_report_callback(void (*callback)(const char *));
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int __sanitizer_posix_memalign(void **memptr, size_t alignment, size_t size);
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void * __sanitizer_memalign(size_t alignment, size_t size);
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void * __sanitizer_aligned_alloc(size_t alignment, size_t size);
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void * __sanitizer___libc_memalign(size_t alignment, size_t size);
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void * __sanitizer_valloc(size_t size);
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void * __sanitizer_pvalloc(size_t size);
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void __sanitizer_free(void *ptr);
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void __sanitizer_cfree(void *ptr);
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size_t __sanitizer_malloc_usable_size(const void *ptr);
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struct mallinfo __sanitizer_mallinfo();
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int __sanitizer_mallopt(int cmd, int value);
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void __sanitizer_malloc_stats(void);
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void * __sanitizer_calloc(size_t nmemb, size_t size);
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void * __sanitizer_realloc(void *ptr, size_t size);
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void * __sanitizer_reallocarray(void *ptr, size_t nmemb, size_t size);
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void * __sanitizer_malloc(size_t size);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // SANITIZER_HWASAN_INTERFACE_H
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