diff options
Diffstat (limited to 'lib/asan/asan_rtl.cc')
| -rw-r--r-- | lib/asan/asan_rtl.cc | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/lib/asan/asan_rtl.cc b/lib/asan/asan_rtl.cc index 4cff736f213a6..13344f3b8887a 100644 --- a/lib/asan/asan_rtl.cc +++ b/lib/asan/asan_rtl.cc @@ -383,6 +383,19 @@ void PrintAddressSpaceLayout() { kHighShadowBeg > kMidMemEnd); } +#if defined(__thumb__) && defined(__linux__) +#define START_BACKGROUND_THREAD_IN_ASAN_INTERNAL +#endif + +#ifndef START_BACKGROUND_THREAD_IN_ASAN_INTERNAL +static bool UNUSED __local_asan_dyninit = [] { + MaybeStartBackgroudThread(); + SetSoftRssLimitExceededCallback(AsanSoftRssLimitExceededCallback); + + return false; +}(); +#endif + static void AsanInitInternal() { if (LIKELY(asan_inited)) return; SanitizerToolName = "AddressSanitizer"; @@ -396,6 +409,14 @@ static void AsanInitInternal() { // initialization steps look at flags(). InitializeFlags(); + // Stop performing init at this point if we are being loaded via + // dlopen() and the platform supports it. + if (SANITIZER_SUPPORTS_INIT_FOR_DLOPEN && UNLIKELY(HandleDlopenInit())) { + asan_init_is_running = false; + VReport(1, "AddressSanitizer init is being performed for dlopen().\n"); + return; + } + AsanCheckIncompatibleRT(); AsanCheckDynamicRTPrereqs(); AvoidCVE_2016_2143(); @@ -420,6 +441,8 @@ static void AsanInitInternal() { __asan_option_detect_stack_use_after_return = flags()->detect_stack_use_after_return; + __sanitizer::InitializePlatformEarly(); + // Re-exec ourselves if we need to set additional env or command line args. MaybeReexec(); @@ -447,8 +470,10 @@ static void AsanInitInternal() { allocator_options.SetFrom(flags(), common_flags()); InitializeAllocator(allocator_options); +#ifdef START_BACKGROUND_THREAD_IN_ASAN_INTERNAL MaybeStartBackgroudThread(); SetSoftRssLimitExceededCallback(AsanSoftRssLimitExceededCallback); +#endif // On Linux AsanThread::ThreadStart() calls malloc() that's why asan_inited // should be set to 1 prior to initializing the threads. |