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Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/interception/interception_win.h')
-rw-r--r-- | contrib/llvm-project/compiler-rt/lib/interception/interception_win.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/interception/interception_win.h b/contrib/llvm-project/compiler-rt/lib/interception/interception_win.h new file mode 100644 index 000000000000..4590013019e3 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/interception/interception_win.h @@ -0,0 +1,83 @@ +//===-- interception_linux.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 a part of AddressSanitizer, an address sanity checker. +// +// Windows-specific interception methods. +//===----------------------------------------------------------------------===// + +#if SANITIZER_WINDOWS + +#if !defined(INCLUDED_FROM_INTERCEPTION_LIB) +# error "interception_win.h should be included from interception library only" +#endif + +#ifndef INTERCEPTION_WIN_H +#define INTERCEPTION_WIN_H + +namespace __interception { +// All the functions in the OverrideFunction() family return true on success, +// false on failure (including "couldn't find the function"). + +// Overrides a function by its address. +bool OverrideFunction(uptr old_func, uptr new_func, uptr *orig_old_func = 0); + +// Overrides a function in a system DLL or DLL CRT by its exported name. +bool OverrideFunction(const char *name, uptr new_func, uptr *orig_old_func = 0); + +// Windows-only replacement for GetProcAddress. Useful for some sanitizers. +uptr InternalGetProcAddress(void *module, const char *func_name); + +// Overrides a function only when it is called from a specific DLL. For example, +// this is used to override calls to HeapAlloc/HeapFree from ucrtbase without +// affecting other third party libraries. +bool OverrideImportedFunction(const char *module_to_patch, + const char *imported_module, + const char *function_name, uptr new_function, + uptr *orig_old_func); + +#if !SANITIZER_WINDOWS64 +// Exposed for unittests +bool OverrideFunctionWithDetour( + uptr old_func, uptr new_func, uptr *orig_old_func); +#endif + +// Exposed for unittests +bool OverrideFunctionWithRedirectJump( + uptr old_func, uptr new_func, uptr *orig_old_func); +bool OverrideFunctionWithHotPatch( + uptr old_func, uptr new_func, uptr *orig_old_func); +bool OverrideFunctionWithTrampoline( + uptr old_func, uptr new_func, uptr *orig_old_func); + +// Exposed for unittests +void TestOnlyReleaseTrampolineRegions(); + +} // namespace __interception + +#if defined(INTERCEPTION_DYNAMIC_CRT) +#define INTERCEPT_FUNCTION_WIN(func) \ + ::__interception::OverrideFunction(#func, \ + (::__interception::uptr)WRAP(func), \ + (::__interception::uptr *)&REAL(func)) +#else +#define INTERCEPT_FUNCTION_WIN(func) \ + ::__interception::OverrideFunction((::__interception::uptr)func, \ + (::__interception::uptr)WRAP(func), \ + (::__interception::uptr *)&REAL(func)) +#endif + +#define INTERCEPT_FUNCTION_VER_WIN(func, symver) INTERCEPT_FUNCTION_WIN(func) + +#define INTERCEPT_FUNCTION_DLLIMPORT(user_dll, provider_dll, func) \ + ::__interception::OverrideImportedFunction( \ + user_dll, provider_dll, #func, (::__interception::uptr)WRAP(func), \ + (::__interception::uptr *)&REAL(func)) + +#endif // INTERCEPTION_WIN_H +#endif // SANITIZER_WINDOWS |