mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-01 11:52:47 +00:00
117 lines
3.1 KiB
C++
117 lines
3.1 KiB
C++
//=-- lsan.cc -------------------------------------------------------------===//
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of LeakSanitizer.
|
|
// Standalone LSan RTL.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lsan.h"
|
|
|
|
#include "sanitizer_common/sanitizer_flags.h"
|
|
#include "sanitizer_common/sanitizer_flag_parser.h"
|
|
#include "sanitizer_common/sanitizer_stacktrace.h"
|
|
#include "lsan_allocator.h"
|
|
#include "lsan_common.h"
|
|
#include "lsan_thread.h"
|
|
|
|
bool lsan_inited;
|
|
bool lsan_init_is_running;
|
|
|
|
namespace __lsan {
|
|
|
|
///// Interface to the common LSan module. /////
|
|
bool WordIsPoisoned(uptr addr) {
|
|
return false;
|
|
}
|
|
|
|
} // namespace __lsan
|
|
|
|
using namespace __lsan; // NOLINT
|
|
|
|
static void InitializeFlags() {
|
|
// Set all the default values.
|
|
SetCommonFlagsDefaults();
|
|
{
|
|
CommonFlags cf;
|
|
cf.CopyFrom(*common_flags());
|
|
cf.external_symbolizer_path = GetEnv("LSAN_SYMBOLIZER_PATH");
|
|
cf.malloc_context_size = 30;
|
|
cf.intercept_tls_get_addr = true;
|
|
cf.detect_leaks = true;
|
|
cf.exitcode = 23;
|
|
OverrideCommonFlags(cf);
|
|
}
|
|
|
|
Flags *f = flags();
|
|
f->SetDefaults();
|
|
|
|
FlagParser parser;
|
|
RegisterLsanFlags(&parser, f);
|
|
RegisterCommonFlags(&parser);
|
|
|
|
// Override from user-specified string.
|
|
const char *lsan_default_options = MaybeCallLsanDefaultOptions();
|
|
parser.ParseString(lsan_default_options);
|
|
parser.ParseString(GetEnv("LSAN_OPTIONS"));
|
|
|
|
SetVerbosity(common_flags()->verbosity);
|
|
|
|
if (Verbosity()) ReportUnrecognizedFlags();
|
|
|
|
if (common_flags()->help) parser.PrintFlagDescriptions();
|
|
|
|
__sanitizer_set_report_path(common_flags()->log_path);
|
|
}
|
|
|
|
static void OnStackUnwind(const SignalContext &sig, const void *,
|
|
BufferedStackTrace *stack) {
|
|
GetStackTrace(stack, kStackTraceMax, sig.pc, sig.bp, sig.context,
|
|
common_flags()->fast_unwind_on_fatal);
|
|
}
|
|
|
|
static void LsanOnDeadlySignal(int signo, void *siginfo, void *context) {
|
|
HandleDeadlySignal(siginfo, context, GetCurrentThread(), &OnStackUnwind,
|
|
nullptr);
|
|
}
|
|
|
|
extern "C" void __lsan_init() {
|
|
CHECK(!lsan_init_is_running);
|
|
if (lsan_inited)
|
|
return;
|
|
lsan_init_is_running = true;
|
|
SanitizerToolName = "LeakSanitizer";
|
|
CacheBinaryName();
|
|
AvoidCVE_2016_2143();
|
|
InitializeFlags();
|
|
InitCommonLsan();
|
|
InitializeAllocator();
|
|
ReplaceSystemMalloc();
|
|
InitTlsSize();
|
|
InitializeInterceptors();
|
|
InitializeThreadRegistry();
|
|
InstallDeadlySignalHandlers(LsanOnDeadlySignal);
|
|
u32 tid = ThreadCreate(0, 0, true);
|
|
CHECK_EQ(tid, 0);
|
|
ThreadStart(tid, GetTid());
|
|
SetCurrentThread(tid);
|
|
|
|
if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit)
|
|
Atexit(DoLeakCheck);
|
|
|
|
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
|
|
|
|
lsan_inited = true;
|
|
lsan_init_is_running = false;
|
|
}
|
|
|
|
extern "C" SANITIZER_INTERFACE_ATTRIBUTE
|
|
void __sanitizer_print_stack_trace() {
|
|
GET_STACK_TRACE_FATAL;
|
|
stack.Print();
|
|
}
|