1 //=-- lsan.cc -------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of LeakSanitizer.
11 // Standalone LSan RTL.
13 //===----------------------------------------------------------------------===//
17 #include "sanitizer_common/sanitizer_flags.h"
18 #include "sanitizer_common/sanitizer_flag_parser.h"
19 #include "sanitizer_common/sanitizer_stacktrace.h"
20 #include "lsan_allocator.h"
21 #include "lsan_common.h"
22 #include "lsan_thread.h"
25 bool lsan_init_is_running;
29 ///// Interface to the common LSan module. /////
30 bool WordIsPoisoned(uptr addr) {
36 using namespace __lsan; // NOLINT
38 static void InitializeFlags() {
39 // Set all the default values.
40 SetCommonFlagsDefaults();
43 cf.CopyFrom(*common_flags());
44 cf.external_symbolizer_path = GetEnv("LSAN_SYMBOLIZER_PATH");
45 cf.malloc_context_size = 30;
46 cf.detect_leaks = true;
48 OverrideCommonFlags(cf);
55 RegisterLsanFlags(&parser, f);
56 RegisterCommonFlags(&parser);
58 parser.ParseString(GetEnv("LSAN_OPTIONS"));
60 SetVerbosity(common_flags()->verbosity);
62 if (Verbosity()) ReportUnrecognizedFlags();
64 if (common_flags()->help) parser.PrintFlagDescriptions();
67 extern "C" void __lsan_init() {
68 CHECK(!lsan_init_is_running);
71 lsan_init_is_running = true;
72 SanitizerToolName = "LeakSanitizer";
76 InitializeAllocator();
78 InitializeInterceptors();
79 InitializeThreadRegistry();
80 u32 tid = ThreadCreate(0, 0, true);
82 ThreadStart(tid, GetTid());
83 SetCurrentThread(tid);
85 if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit)
88 InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
91 lsan_init_is_running = false;
94 extern "C" SANITIZER_INTERFACE_ATTRIBUTE
95 void __sanitizer_print_stack_trace() {
96 GET_STACK_TRACE_FATAL;