From 7f47a0bea177db24ecfc75b9daf3874e39a869df Mon Sep 17 00:00:00 2001 From: Vitaly Buka Date: Tue, 5 Jun 2018 18:15:57 +0000 Subject: [lsan] Do not check for leaks in the forked process Summary: If calling process had threads then forked process will fail to detect references from them. Fixes https://github.com/google/sanitizers/issues/836 Reviewers: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D47751 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334036 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/lsan/TestCases/Linux/fork_with_threads.cc | 35 ++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 test/lsan/TestCases/Linux/fork_with_threads.cc (limited to 'test') diff --git a/test/lsan/TestCases/Linux/fork_with_threads.cc b/test/lsan/TestCases/Linux/fork_with_threads.cc new file mode 100644 index 000000000..221c5d249 --- /dev/null +++ b/test/lsan/TestCases/Linux/fork_with_threads.cc @@ -0,0 +1,35 @@ +// Test forked process does not run lsan. +// RUN: %clangxx_lsan %s -o %t && %run %t 2>&1 | FileCheck %s + +#include +#include +#include +#include + +static pthread_barrier_t barrier; + +// CHECK-NOT: SUMMARY: {{(Leak|Address)}}Sanitizer: +static void *thread_func(void *arg) { + void *buffer = malloc(1337); + pthread_barrier_wait(&barrier); + for (;;) + pthread_yield(); + return 0; +} + +int main() { + pthread_barrier_init(&barrier, 0, 2); + pthread_t tid; + int res = pthread_create(&tid, 0, thread_func, 0); + pthread_barrier_wait(&barrier); + pthread_barrier_destroy(&barrier); + + pid_t pid = fork(); + if (pid > 0) { + int status = 0; + waitpid(pid, &status, 0); + } + return 0; +} + +// CHECK: WARNING: LeakSanitizer is disabled in forked process -- cgit v1.2.3