#ifdef _WIN32
#include <windows.h>
#include <dbghelp.h>
#include <stdlib.h>
#include "asan_interceptors.h"
#include "asan_internal.h"
#include "asan_thread.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "sanitizer_common/sanitizer_mutex.h"
namespace __asan {
static BlockingMutex dbghelp_lock(LINKER_INITIALIZED);
static bool dbghelp_initialized = false;
#pragma comment(lib, "dbghelp.lib")
void GetStackTrace(StackTrace *stack, uptr max_s, uptr pc, uptr bp, bool fast) {
(void)fast;
stack->max_size = max_s;
void *tmp[kStackTraceMax];
uptr cs_ret = CaptureStackBackTrace(1, stack->max_size, tmp, 0);
uptr offset = 0;
for (uptr i = 0; i < cs_ret; i++) {
if (pc != (uptr)tmp[i])
continue;
offset = i;
break;
}
stack->size = cs_ret - offset;
for (uptr i = 0; i < stack->size; i++)
stack->trace[i] = (uptr)tmp[i + offset];
}
static bool tsd_key_inited = false;
static __declspec(thread) void *fake_tsd = 0;
void AsanTSDInit(void (*destructor)(void *tsd)) {
tsd_key_inited = true;
}
void *AsanTSDGet() {
CHECK(tsd_key_inited);
return fake_tsd;
}
void AsanTSDSet(void *tsd) {
CHECK(tsd_key_inited);
fake_tsd = tsd;
}
void MaybeReexec() {
}
void *AsanDoesNotSupportStaticLinkage() {
#if defined(_DEBUG)
#error Please build the runtime with a non-debug CRT: /MD or /MT
#endif
return 0;
}
void SetAlternateSignalStack() {
}
void UnsetAlternateSignalStack() {
}
void InstallSignalHandlers() {
}
void AsanPlatformThreadInit() {
}
void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
UNIMPLEMENTED();
}
}
using namespace __asan;
extern "C" {
SANITIZER_INTERFACE_ATTRIBUTE NOINLINE
bool __asan_symbolize(const void *addr, char *out_buffer, int buffer_size) {
BlockingMutexLock lock(&dbghelp_lock);
if (!dbghelp_initialized) {
SymSetOptions(SYMOPT_DEFERRED_LOADS |
SYMOPT_UNDNAME |
SYMOPT_LOAD_LINES);
CHECK(SymInitialize(GetCurrentProcess(), 0, TRUE));
dbghelp_initialized = true;
}
char buffer[sizeof(SYMBOL_INFO) + MAX_SYM_NAME * sizeof(CHAR)];
PSYMBOL_INFO symbol = (PSYMBOL_INFO)buffer;
symbol->SizeOfStruct = sizeof(SYMBOL_INFO);
symbol->MaxNameLen = MAX_SYM_NAME;
DWORD64 offset = 0;
BOOL got_objname = SymFromAddr(GetCurrentProcess(),
(DWORD64)addr, &offset, symbol);
if (!got_objname)
return false;
DWORD unused;
IMAGEHLP_LINE64 info;
info.SizeOfStruct = sizeof(IMAGEHLP_LINE64);
BOOL got_fileline = SymGetLineFromAddr64(GetCurrentProcess(),
(DWORD64)addr, &unused, &info);
int written = 0;
out_buffer[0] = '\0';
if (got_fileline) {
written += internal_snprintf(out_buffer + written, buffer_size - written,
" %s %s:%d", symbol->Name,
info.FileName, info.LineNumber);
} else {
written += internal_snprintf(out_buffer + written, buffer_size - written,
" %s+0x%p", symbol->Name, offset);
}
return true;
}
}
#endif // _WIN32