5d3805fca3
* ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch
builtins, store max (log2 (align), 0) into uchar field instead of
align into uptr field.
(ubsan_expand_objsize_ifn): Use _v1 suffixed type mismatch builtins,
store uchar 0 field instead of uptr 0 field.
(instrument_nonnull_return): Use _v1 suffixed nonnull return builtin,
instead of passing one address of struct with 2 locations pass
two addresses of structs with 1 location each.
* sanitizer.def (BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH,
BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_ABORT,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_ABORT): Removed.
(BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1,
BUILT_IN_UBSAN_HANDLE_TYPE_MISMATCH_V1_ABORT,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1,
BUILT_IN_UBSAN_HANDLE_NONNULL_RETURN_V1_ABORT): New builtins.
* c-c++-common/ubsan/float-cast-overflow-1.c: Drop value keyword
from expected output regexps.
* c-c++-common/ubsan/float-cast-overflow-2.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-3.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-4.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-5.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-6.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-8.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-9.c: Likewise.
* c-c++-common/ubsan/float-cast-overflow-10.c: Likewise.
* g++.dg/ubsan/float-cast-overflow-bf.C: Likewise.
* gcc.dg/ubsan/float-cast-overflow-bf.c: Likewise.
* g++.dg/asan/default-options-1.C (__asan_default_options): Add
used attribute.
* g++.dg/asan/asan_test.C: Run with ASAN_OPTIONS=handle_segv=2
in the environment.
* All source files: Merge from upstream 315899.
* asan/Makefile.am (nodist_saninclude_HEADERS): Add
include/sanitizer/tsan_interface.h.
* asan/libtool-version: Bump the libasan SONAME.
* lsan/Makefile.am (sanitizer_lsan_files): Add lsan_common_mac.cc.
(lsan_files): Add lsan_linux.cc, lsan_mac.cc and lsan_malloc_mac.cc.
* sanitizer_common/Makefile.am (sanitizer_common_files): Add
sancov_flags.cc, sanitizer_allocator_checks.cc,
sanitizer_coverage_libcdep_new.cc, sanitizer_errno.cc,
sanitizer_file.cc, sanitizer_mac_libcdep.cc and
sanitizer_stoptheworld_mac.cc. Remove sanitizer_coverage_libcdep.cc
and sanitizer_coverage_mapping_libcdep.cc.
* tsan/Makefile.am (tsan_files): Add tsan_external.cc.
* ubsan/Makefile.am (DEFS): Add -DUBSAN_CAN_USE_CXXABI=1.
(ubsan_files): Add ubsan_init_standalone.cc and
ubsan_signals_standalone.cc.
* ubsan/libtool-version: Bump the libubsan SONAME.
* asan/Makefile.in: Regenerate.
* lsan/Makefile.in: Regenerate.
* sanitizer_common/Makefile.in: Regenerate.
* tsan/Makefile.in: Regenerate.
* ubsan/Makefile.in: Regenerate.
From-SVN: r253887
93 lines
3.4 KiB
C++
93 lines
3.4 KiB
C++
//===-- sanitizer_win_weak_interception.cc --------------------------------===//
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// This module should be included in the sanitizer when it is implemented as a
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// shared library on Windows (dll), in order to delegate the calls of weak
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// functions to the implementation in the main executable when a strong
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// definition is provided.
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//===----------------------------------------------------------------------===//
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#include "sanitizer_common/sanitizer_platform.h"
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#if SANITIZER_WINDOWS && SANITIZER_DYNAMIC
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#include "sanitizer_win_weak_interception.h"
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#include "sanitizer_allocator_interface.h"
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#include "sanitizer_interface_internal.h"
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#include "sanitizer_win_defs.h"
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#include "interception/interception.h"
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extern "C" {
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void *WINAPI GetModuleHandleA(const char *module_name);
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void abort();
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}
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namespace __sanitizer {
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// Try to get a pointer to real_function in the main module and override
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// dll_function with that pointer. If the function isn't found, nothing changes.
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int interceptWhenPossible(uptr dll_function, const char *real_function) {
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uptr real = __interception::InternalGetProcAddress(
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(void *)GetModuleHandleA(0), real_function);
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if (real && !__interception::OverrideFunction((uptr)dll_function, real, 0))
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abort();
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return 0;
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}
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} // namespace __sanitizer
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// Declare weak hooks.
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extern "C" {
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void __sanitizer_weak_hook_memcmp(uptr called_pc, const void *s1,
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const void *s2, uptr n, int result);
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void __sanitizer_weak_hook_strcmp(uptr called_pc, const char *s1,
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const char *s2, int result);
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void __sanitizer_weak_hook_strncmp(uptr called_pc, const char *s1,
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const char *s2, uptr n, int result);
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void __sanitizer_weak_hook_strstr(uptr called_pc, const char *s1,
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const char *s2, char *result);
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}
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// Include Sanitizer Common interface.
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#define INTERFACE_FUNCTION(Name)
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#define INTERFACE_WEAK_FUNCTION(Name) INTERCEPT_SANITIZER_WEAK_FUNCTION(Name)
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#include "sanitizer_common_interface.inc"
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#pragma section(".WEAK$A", read) // NOLINT
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#pragma section(".WEAK$Z", read) // NOLINT
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typedef void (*InterceptCB)();
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extern "C" {
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__declspec(allocate(".WEAK$A")) InterceptCB __start_weak_list;
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__declspec(allocate(".WEAK$Z")) InterceptCB __stop_weak_list;
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}
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static int weak_intercept_init() {
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static bool flag = false;
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// weak_interception_init is expected to be called by only one thread.
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if (flag) return 0;
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flag = true;
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for (InterceptCB *it = &__start_weak_list; it < &__stop_weak_list; ++it)
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if (*it)
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(*it)();
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// In DLLs, the callbacks are expected to return 0,
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// otherwise CRT initialization fails.
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return 0;
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}
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#pragma section(".CRT$XIB", long, read) // NOLINT
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__declspec(allocate(".CRT$XIB")) int (*__weak_intercept_preinit)() =
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weak_intercept_init;
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static void WINAPI weak_intercept_thread_init(void *mod, unsigned long reason,
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void *reserved) {
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if (reason == /*DLL_PROCESS_ATTACH=*/1) weak_intercept_init();
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}
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#pragma section(".CRT$XLAB", long, read) // NOLINT
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__declspec(allocate(".CRT$XLAB")) void(WINAPI *__weak_intercept_tls_init)(
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void *, unsigned long, void *) = weak_intercept_thread_init;
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#endif // SANITIZER_WINDOWS && SANITIZER_DYNAMIC
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