[compiler-rt] r328407 - [HWASan] Fix use-after-free.cc test on x86-64

[via llvm-commits]

Hi Alex,

This test is still failing on our internal build bot which simply does a x86-64 linux build/test of each upstream commit. I would point you to a public build bot that shows the failure, but unfortunately I don't seem to find any. I have been able to reproduce the failure on my linux box outside of the bot using the same build/test commands, so it doesn't seem to be a problem specific to that one machine.

For reference, here is the test output:

/home/siadmin/jenkins/w/opensource/opensource_build/llvm/projects/compiler-rt/test/hwasan/TestCases/use-after-free.cc:31:12: error: expected string not found in input
 // CHECK: #0 {{.*}} in free {{.*}}hwasan_interceptors.cc
           ^
<stdin>:9:2: note: scanning from here
 #0 0x7fb5893a3fd8 in __interceptor_free /home/siadmin/jenkins/w/opensource/opensource_build/llvm/projects/compiler-rt/lib/hwasan/hwasan_interceptors.cc:176:3
 ^
<stdin>:9:110: note: possible intended match here
 #0 0x7fb5893a3fd8 in __interceptor_free /home/siadmin/jenkins/w/opensource/opensource_build/llvm/projects/compiler-rt/lib/hwasan/hwasan_interceptors.cc:176:3

Any ideas on why this might be failing? If this isn't enough, I can provide you with more details of my environment and the build/test command lines to help you reproduce the problem.

Douglas Yung

> -----Original Message-----
> From: llvm-commits [mailto:llvm-commits-bounces at lists.llvm.org] On Behalf Of
> Alex Shlyapnikov via llvm-commits
> Sent: Friday, March 23, 2018 19:11
> To: llvm-commits at lists.llvm.org
> Subject: [compiler-rt] r328407 - [HWASan] Fix use-after-free.cc test on x86-64
> 
> Author: alekseyshl
> Date: Fri Mar 23 19:10:49 2018
> New Revision: 328407
> 
> URL: http://llvm.org/viewvc/llvm-project?rev=328407&view=rev
> Log:
> [HWASan] Fix use-after-free.cc test on x86-64
> 
> Differential Revision: https://reviews.llvm.org/D44705
> 
> Modified:
>     compiler-rt/trunk/test/hwasan/TestCases/use-after-free.cc
> 
> Modified: compiler-rt/trunk/test/hwasan/TestCases/use-after-free.cc
> URL: http://llvm.org/viewvc/llvm-project/compiler-
> rt/trunk/test/hwasan/TestCases/use-after-
> free.cc?rev=328407&r1=328406&r2=328407&view=diff
> ==============================================================================
> --- compiler-rt/trunk/test/hwasan/TestCases/use-after-free.cc (original)
> +++ compiler-rt/trunk/test/hwasan/TestCases/use-after-free.cc Fri Mar 23
> 19:10:49 2018
> @@ -32,7 +32,7 @@ int main() {
>    // CHECK: #1 {{.*}} in main {{.*}}use-after-free.cc:16
> 
>    // CHECK: previously allocated here:
> -  // CHECK: #0 {{.*}} in __interceptor_malloc {{.*}}hwasan_interceptors.cc
> +  // CHECK: #0 {{.*}} in {{.*}}malloc {{.*}}hwasan_interceptors.cc
>    // CHECK: #1 {{.*}} in main {{.*}}use-after-free.cc:15
> 
>    // CHECK: SUMMARY: HWAddressSanitizer: tag-mismatch {{.*}} in main
> 
> 
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