From 1fdbe1ea1b8c835c11ed6fbec4d4259ad104f765 Mon Sep 17 00:00:00 2001 From: Abseil Team Date: Tue, 23 Mar 2021 15:07:11 -0700 Subject: Export of internal Abseil changes -- 4b566a7deeba5db473c83f4924c1d182a002779f by Abseil Team : Add absl::LeakCheckerIsActive to check whether a leak checker is built into the target and enabled. For LeakSanitizer, it is by default enabled unless __lsan_is_turned_off() is defined and returns true. PiperOrigin-RevId: 364654465 -- 0a56ff5310b66f9d1ff5e5e2a053335ecfb5c75b by Abseil Team : Update absl::FromTM documentation to reflect implementation. PiperOrigin-RevId: 364388743 GitOrigin-RevId: 4b566a7deeba5db473c83f4924c1d182a002779f Change-Id: I8df35b761b532e79d620f484153083c3499ef55b --- absl/debugging/leak_check.cc | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'absl/debugging/leak_check.cc') diff --git a/absl/debugging/leak_check.cc b/absl/debugging/leak_check.cc index db9d5d09..764ca0ad 100644 --- a/absl/debugging/leak_check.cc +++ b/absl/debugging/leak_check.cc @@ -16,6 +16,7 @@ // When lsan is not linked in, these functions are not available, // therefore Abseil code which depends on these functions is conditioned on the // definition of LEAK_SANITIZER. +#include "absl/base/attributes.h" #include "absl/debugging/leak_check.h" #ifndef LEAK_SANITIZER @@ -23,6 +24,7 @@ namespace absl { ABSL_NAMESPACE_BEGIN bool HaveLeakSanitizer() { return false; } +bool LeakCheckerIsActive() { return false; } void DoIgnoreLeak(const void*) { } void RegisterLivePointers(const void*, size_t) { } void UnRegisterLivePointers(const void*, size_t) { } @@ -35,9 +37,22 @@ ABSL_NAMESPACE_END #include +#if ABSL_HAVE_ATTRIBUTE_WEAK +extern "C" ABSL_ATTRIBUTE_WEAK int __lsan_is_turned_off(); +#endif + namespace absl { ABSL_NAMESPACE_BEGIN bool HaveLeakSanitizer() { return true; } + +#if ABSL_HAVE_ATTRIBUTE_WEAK +bool LeakCheckerIsActive() { + return !(&__lsan_is_turned_off && __lsan_is_turned_off()); +} +#else +bool LeakCheckerIsActive() { return true; } +#endif + bool FindAndReportLeaks() { return __lsan_do_recoverable_leak_check(); } void DoIgnoreLeak(const void* ptr) { __lsan_ignore_object(ptr); } void RegisterLivePointers(const void* ptr, size_t size) { -- cgit v1.2.3