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[ASan] A speculative attempt to fix a flaky test on ppc64be. 

Summary:
As mentioned in test/msan/fork.cc, if test output is redirected to a file
(as opposed to being piped directly to FileCheck), we may lose some "done"s due to
a kernel bug: https://lkml.org/lkml/2014/2/17/324, so let's pipe the
output of the test.

Reviewers: eugenis

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D33915

llvm-svn: 304744
This commit is contained in:
Alex Shlyapnikov 2017-06-05 22:23:15 +00:00
parent ebe6bb9006
commit effb794346
1 changed files with 3 additions and 3 deletions
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6
compiler-rt/test/asan/TestCases/Posix/halt_on_error-torture.cc
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@ -10,12 +10,12 @@
//
// Collisions are unlikely but still possible so we need the ||.
// RUN: rm -f 10.txt
// RUN: %env_asan_opts=halt_on_error=false:suppress_equal_pcs=false:exitcode=0 %run %t 10 20 >>10.txt 2>&1
// RUN: %env_asan_opts=halt_on_error=false:suppress_equal_pcs=false:exitcode=0 %run %t 10 20 2>&1 | cat > 10.txt
// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 10.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 10.txt
//
// Collisions are unlikely but still possible so we need the ||.
// RUN: rm -f 20.txt
// RUN: %env_asan_opts=halt_on_error=false:exitcode=0 %run %t 10 20 >>20.txt 2>&1
// RUN: %env_asan_opts=halt_on_error=false:exitcode=0 %run %t 10 20 2>&1 | cat > 20.txt
// RUN: FileCheck --check-prefix=CHECK-COLLISION %s < 20.txt || FileCheck --check-prefix=CHECK-NO-COLLISION %s < 20.txt
#include <stdio.h>
@ -38,7 +38,7 @@ void *run(void *arg) {
unsigned seed = (unsigned)(size_t)arg;
volatile char tmp[2];
__asan_poison_memory_region(&tmp, sizeof(tmp));
__asan_poison_memory_region(&tmp, sizeof(tmp));
for (size_t i = 0; i < niter; ++i) {
random_delay(&seed);