gcc/libsanitizer/tsan/tsan_interface.cc

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//===-- tsan_interface.cc -------------------------------------------------===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
//===----------------------------------------------------------------------===//
#include "tsan_interface.h"
#include "tsan_interface_ann.h"
#include "tsan_rtl.h"
#include "sanitizer_common/sanitizer_internal_defs.h"
#define CALLERPC ((uptr)__builtin_return_address(0))
using namespace __tsan; // NOLINT
typedef u16 uint16_t;
typedef u32 uint32_t;
typedef u64 uint64_t;
void __tsan_init() {
Initialize(cur_thread());
}
ubsan.c (ubsan_expand_null_ifn): Use _v1 suffixed type mismatch builtins... * 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
2017-10-19 13:23:59 +02:00
void __tsan_flush_memory() {
FlushShadowMemory();
}
void __tsan_read16(void *addr) {
MemoryRead(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
MemoryRead(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8);
}
void __tsan_write16(void *addr) {
MemoryWrite(cur_thread(), CALLERPC, (uptr)addr, kSizeLog8);
MemoryWrite(cur_thread(), CALLERPC, (uptr)addr + 8, kSizeLog8);
}
void __tsan_read16_pc(void *addr, void *pc) {
MemoryRead(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
MemoryRead(cur_thread(), (uptr)pc, (uptr)addr + 8, kSizeLog8);
}
void __tsan_write16_pc(void *addr, void *pc) {
MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr, kSizeLog8);
MemoryWrite(cur_thread(), (uptr)pc, (uptr)addr + 8, kSizeLog8);
}
// __tsan_unaligned_read/write calls are emitted by compiler.
void __tsan_unaligned_read2(const void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, false, false);
}
void __tsan_unaligned_read4(const void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, false, false);
}
void __tsan_unaligned_read8(const void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, false, false);
}
void __tsan_unaligned_read16(const void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 16, false, false);
}
void __tsan_unaligned_write2(void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 2, true, false);
}
void __tsan_unaligned_write4(void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 4, true, false);
}
void __tsan_unaligned_write8(void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 8, true, false);
}
void __tsan_unaligned_write16(void *addr) {
UnalignedMemoryAccess(cur_thread(), CALLERPC, (uptr)addr, 16, true, false);
}
// __sanitizer_unaligned_load/store are for user instrumentation.
extern "C" {
SANITIZER_INTERFACE_ATTRIBUTE
u16 __sanitizer_unaligned_load16(const uu16 *addr) {
__tsan_unaligned_read2(addr);
return *addr;
}
SANITIZER_INTERFACE_ATTRIBUTE
u32 __sanitizer_unaligned_load32(const uu32 *addr) {
__tsan_unaligned_read4(addr);
return *addr;
}
SANITIZER_INTERFACE_ATTRIBUTE
u64 __sanitizer_unaligned_load64(const uu64 *addr) {
__tsan_unaligned_read8(addr);
return *addr;
}
SANITIZER_INTERFACE_ATTRIBUTE
void __sanitizer_unaligned_store16(uu16 *addr, u16 v) {
__tsan_unaligned_write2(addr);
*addr = v;
}
SANITIZER_INTERFACE_ATTRIBUTE
void __sanitizer_unaligned_store32(uu32 *addr, u32 v) {
__tsan_unaligned_write4(addr);
*addr = v;
}
SANITIZER_INTERFACE_ATTRIBUTE
void __sanitizer_unaligned_store64(uu64 *addr, u64 v) {
__tsan_unaligned_write8(addr);
*addr = v;
}
} // extern "C"
void __tsan_acquire(void *addr) {
Acquire(cur_thread(), CALLERPC, (uptr)addr);
}
void __tsan_release(void *addr) {
Release(cur_thread(), CALLERPC, (uptr)addr);
}