<html>
<head>
<base href="https://bugs.llvm.org/">
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - asan: AddressSanitizer-*-linux-dynamic :: TestCases/Linux/asan_rt_confict_test-1.cc fails on Gentoo stand-alone build"
href="https://bugs.llvm.org/show_bug.cgi?id=36025">36025</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>asan: AddressSanitizer-*-linux-dynamic :: TestCases/Linux/asan_rt_confict_test-1.cc fails on Gentoo stand-alone build
</td>
</tr>
<tr>
<th>Product</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>compiler-rt
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>mgorny@gentoo.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Blocks</th>
<td>35804
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19715" name="attach_19715" title="sys-libs:compiler-rt-sanitizers-6.0.9999:20180120-132820.log.xz">attachment 19715</a> <a href="attachment.cgi?id=19715&action=edit" title="sys-libs:compiler-rt-sanitizers-6.0.9999:20180120-132820.log.xz">[details]</a></span>
sys-libs:compiler-rt-sanitizers-6.0.9999:20180120-132820.log.xz
When testing the 6.0 branch for Gentoo, I have two new ASAN test failures:
AddressSanitizer-i386-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc
AddressSanitizer-x86_64-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc
In both cases, the test executable segfaults without outputting anything.
Curious enough, I can't reproduce this when building compiler-rt in-tree with
other LLVM components.
I've attempted running the working in-tree executable with LD_LIBRARY_PATH
pointing to libasan built stand-alone, and it segfaulted like the stand-alone
build -- therefore, I suspect the problem lies in libasan itself and not the
test.
I'd appreciate any suggestions how to debug this further. I'm attaching the
build log for compiler-rt sanitizers.
FAIL: AddressSanitizer-i386-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc (1354 of 4782)
******************** TEST 'AddressSanitizer-i386-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc' FAILED ********************
Script:
--
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/lib/llvm/6/bin/clang
--driver-mode=g++ -fsanitize=address -mno-omit-leaf-frame-pointer
-fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -m32
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
-o
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/I386LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
env LD_PRELOAD=libclang_rt.asan-i386.so not
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/I386LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
2>&1 | FileCheck
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
--
Exit Code: 1
Command Output (stderr):
--
+
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/lib/llvm/6/bin/clang
--driver-mode=g++ -fsanitize=address -mno-omit-leaf-frame-pointer
-fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -m32
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
-o
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/I386LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
+ FileCheck
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
+ env LD_PRELOAD=libclang_rt.asan-i386.so not
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/I386LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc:13:11:
error: expected string not found in input
// CHECK: Your application is linked against incompatible ASan runtimes
^
<stdin>:1:1: note: scanning from here
ERROR: ld.so: object 'libclang_rt.asan-i386.so' from LD_PRELOAD cannot be
preloaded (wrong ELF class: ELFCLASS32): ignored.
^
<stdin>:2:1: note: possible intended match here
Error: Segmentation fault
^
--
********************
FAIL: AddressSanitizer-x86_64-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc (2197 of 4782)
******************** TEST 'AddressSanitizer-x86_64-linux-dynamic ::
TestCases/Linux/asan_rt_confict_test-1.cc' FAILED ********************
Script:
--
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/lib/llvm/6/bin/clang
--driver-mode=g++ -fsanitize=address -mno-omit-leaf-frame-pointer
-fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -m64
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
-o
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/X86_64LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
env LD_PRELOAD=libclang_rt.asan-x86_64.so not
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/X86_64LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
2>&1 | FileCheck
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
--
Exit Code: 1
Command Output (stderr):
--
+
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/lib/llvm/6/bin/clang
--driver-mode=g++ -fsanitize=address -mno-omit-leaf-frame-pointer
-fno-omit-frame-pointer -fno-optimize-sibling-calls -gline-tables-only -m64
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
-o
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/X86_64LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
+ FileCheck
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc
+ env LD_PRELOAD=libclang_rt.asan-x86_64.so not
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999_build/test/asan/X86_64LinuxDynamicConfig/TestCases/Linux/Output/asan_rt_confict_test-1.cc.tmp
/var/tmp/portage/sys-libs/compiler-rt-sanitizers-6.0.9999/work/compiler-rt-sanitizers-6.0.9999/test/asan/TestCases/Linux/asan_rt_confict_test-1.cc:13:11:
error: expected string not found in input
// CHECK: Your application is linked against incompatible ASan runtimes
^
<stdin>:1:1: note: scanning from here
Error: Segmentation fault
^
--
********************</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_NEW "
title="NEW - [meta] 6.0.0 Release Blockers"
href="https://bugs.llvm.org/show_bug.cgi?id=35804">Bug 35804</a>] [meta] 6.0.0 Release Blockers
</li>
</ul>
</div>
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