diff --git a/compiler-rt/lib/asan/asan_fuchsia.cpp b/compiler-rt/lib/asan/asan_fuchsia.cpp --- a/compiler-rt/lib/asan/asan_fuchsia.cpp +++ b/compiler-rt/lib/asan/asan_fuchsia.cpp @@ -14,16 +14,17 @@ #include "sanitizer_common/sanitizer_fuchsia.h" #if SANITIZER_FUCHSIA -#include "asan_interceptors.h" -#include "asan_internal.h" -#include "asan_stack.h" -#include "asan_thread.h" - #include #include #include #include +#include "asan_interceptors.h" +#include "asan_internal.h" +#include "asan_stack.h" +#include "asan_thread.h" +#include "lsan/lsan_common.h" + namespace __asan { // The system already set up the shadow memory for us. @@ -31,7 +32,8 @@ // AsanInitInternal->InitializeHighMemEnd (asan_rtl.cpp). // Just do some additional sanity checks here. void InitializeShadowMemory() { - if (Verbosity()) PrintAddressSpaceLayout(); + if (Verbosity()) + PrintAddressSpaceLayout(); // Make sure SHADOW_OFFSET doesn't use __asan_shadow_memory_dynamic_address. __asan_shadow_memory_dynamic_address = kDefaultShadowSentinel; @@ -148,7 +150,8 @@ uptr stack_size) { EnsureMainThreadIDIsCorrect(); // Strict init-order checking is thread-hostile. - if (flags()->strict_init_order) StopInitOrderChecking(); + if (flags()->strict_init_order) + StopInitOrderChecking(); GET_STACK_TRACE_THREAD; u32 parent_tid = GetCurrentTidOrInvalid(); @@ -202,8 +205,18 @@ __sanitizer_fill_shadow(p, size, 0, 0); } +// On Fuchsia, leak detection is done by a special hook after atexit hooks. +// So this doesn't install any atexit hook like on other platforms. +void InstallAtExitCheckLeaks() {} + } // namespace __asan +namespace __lsan { + +bool UseExitcodeOnLeak() { return __asan::flags()->halt_on_error; } + +} // namespace __lsan + // These are declared (in extern "C") by . // The system runtime will call our definitions directly. diff --git a/compiler-rt/lib/asan/asan_internal.h b/compiler-rt/lib/asan/asan_internal.h --- a/compiler-rt/lib/asan/asan_internal.h +++ b/compiler-rt/lib/asan/asan_internal.h @@ -123,6 +123,8 @@ // `dlopen()` specific initialization inside this function. bool HandleDlopenInit(); +void InstallAtExitCheckLeaks(); + // Add convenient macro for interface functions that may be represented as // weak hooks. #define ASAN_MALLOC_HOOK(ptr, size) \ diff --git a/compiler-rt/lib/asan/asan_posix.cpp b/compiler-rt/lib/asan/asan_posix.cpp --- a/compiler-rt/lib/asan/asan_posix.cpp +++ b/compiler-rt/lib/asan/asan_posix.cpp @@ -140,6 +140,18 @@ AsanThread::TSDDtor(tsd); } #endif + +#if CAN_SANITIZE_LEAKS +void InstallAtExitCheckLeaks() { + if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit) { + if (flags()->halt_on_error) + Atexit(__lsan::DoLeakCheck); + else + Atexit(__lsan::DoRecoverableLeakCheckVoid); + } +} +#endif + } // namespace __asan #endif // SANITIZER_POSIX diff --git a/compiler-rt/lib/asan/asan_rtl.cpp b/compiler-rt/lib/asan/asan_rtl.cpp --- a/compiler-rt/lib/asan/asan_rtl.cpp +++ b/compiler-rt/lib/asan/asan_rtl.cpp @@ -500,12 +500,7 @@ if (CAN_SANITIZE_LEAKS) { __lsan::InitCommonLsan(); - if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit) { - if (flags()->halt_on_error) - Atexit(__lsan::DoLeakCheck); - else - Atexit(__lsan::DoRecoverableLeakCheckVoid); - } + InstallAtExitCheckLeaks(); } #if CAN_SANITIZE_UB diff --git a/compiler-rt/lib/asan/asan_win.cpp b/compiler-rt/lib/asan/asan_win.cpp --- a/compiler-rt/lib/asan/asan_win.cpp +++ b/compiler-rt/lib/asan/asan_win.cpp @@ -1,4 +1,5 @@ -//===-- asan_win.cpp ------------------------------------------------------===// +//===-- asan_win.cpp +//------------------------------------------------------===//> // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. @@ -14,9 +15,8 @@ #include "sanitizer_common/sanitizer_platform.h" #if SANITIZER_WINDOWS #define WIN32_LEAN_AND_MEAN -#include - #include +#include #include "asan_interceptors.h" #include "asan_internal.h" @@ -49,8 +49,8 @@ static LPTOP_LEVEL_EXCEPTION_FILTER default_seh_handler; static LPTOP_LEVEL_EXCEPTION_FILTER user_seh_handler; -extern "C" SANITIZER_INTERFACE_ATTRIBUTE -long __asan_unhandled_exception_filter(EXCEPTION_POINTERS *info) { +extern "C" SANITIZER_INTERFACE_ATTRIBUTE long __asan_unhandled_exception_filter( + EXCEPTION_POINTERS *info) { EXCEPTION_RECORD *exception_record = info->ExceptionRecord; CONTEXT *context = info->ContextRecord; @@ -187,6 +187,8 @@ } } +InstallAtExitCheckLeaks() {} + void AsanApplyToGlobals(globals_op_fptr op, const void *needle) { UNIMPLEMENTED(); } diff --git a/compiler-rt/lib/lsan/lsan.h b/compiler-rt/lib/lsan/lsan.h --- a/compiler-rt/lib/lsan/lsan.h +++ b/compiler-rt/lib/lsan/lsan.h @@ -39,6 +39,7 @@ void InitializeInterceptors(); void ReplaceSystemMalloc(); void LsanOnDeadlySignal(int signo, void *siginfo, void *context); +void InstallAtExitCheckLeaks(); #define ENSURE_LSAN_INITED do { \ CHECK(!lsan_init_is_running); \ diff --git a/compiler-rt/lib/lsan/lsan.cpp b/compiler-rt/lib/lsan/lsan.cpp --- a/compiler-rt/lib/lsan/lsan.cpp +++ b/compiler-rt/lib/lsan/lsan.cpp @@ -103,9 +103,7 @@ InitializeThreadRegistry(); InstallDeadlySignalHandlers(LsanOnDeadlySignal); InitializeMainThread(); - - if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit) - Atexit(DoLeakCheck); + InstallAtExitCheckLeaks(); InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir); diff --git a/compiler-rt/lib/lsan/lsan_common_fuchsia.cpp b/compiler-rt/lib/lsan/lsan_common_fuchsia.cpp --- a/compiler-rt/lib/lsan/lsan_common_fuchsia.cpp +++ b/compiler-rt/lib/lsan/lsan_common_fuchsia.cpp @@ -51,7 +51,16 @@ // behavior and causes rare race conditions. void HandleLeaks() {} +// This is defined differently in asan_fuchsiap.cpp and lsan_fuchsia.cpp. +bool UseExitcodeOnLeak(); + int ExitHook(int status) { + if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit) { + if (UseExitcodeOnLeak()) + DoLeakCheck(); + else + DoRecoverableLeakCheckVoid(); + } return status == 0 && HasReportedLeaks() ? common_flags()->exitcode : status; } diff --git a/compiler-rt/lib/lsan/lsan_fuchsia.cpp b/compiler-rt/lib/lsan/lsan_fuchsia.cpp --- a/compiler-rt/lib/lsan/lsan_fuchsia.cpp +++ b/compiler-rt/lib/lsan/lsan_fuchsia.cpp @@ -76,6 +76,13 @@ caches); } +// On Fuchsia, leak detection is done by a special hook after atexit hooks. +// So this doesn't install any atexit hook like on other platforms. +void InstallAtExitCheckLeaks() {} + +// ASan defines this to check its `halt_on_error` flag. +bool UseExitcodeOnLeak() { return true; } + } // namespace __lsan // These are declared (in extern "C") by . diff --git a/compiler-rt/lib/lsan/lsan_posix.cpp b/compiler-rt/lib/lsan/lsan_posix.cpp --- a/compiler-rt/lib/lsan/lsan_posix.cpp +++ b/compiler-rt/lib/lsan/lsan_posix.cpp @@ -91,6 +91,11 @@ nullptr); } +void InstallAtExitCheckLeaks() { + if (common_flags()->detect_leaks && common_flags()->leak_check_at_exit) + Atexit(DoLeakCheck); +} + } // namespace __lsan #endif // SANITIZER_POSIX