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<base href="https://llvm.org/bugs/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - segfault in LLVMgold.so gold plugin on POWER7" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D23623&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=imGL7De0KulvgB4D9_L-73YWJ0n_naRz0KTXYR30zR0&e=">23623</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>segfault in LLVMgold.so gold plugin on POWER7
</td>
</tr>
<tr>
<th>Product</th>
<td>new-bugs
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</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>new bugs
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>ncm@cantrip.org
</td>
</tr>
<tr>
<th>CC</th>
<td>llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Illustrated, a crash on a POWER7 in LLVMgold.so. gdb thinks the crash is in the
PrettyStackTraceEntry constructor.
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 7.1 (Maipo)
$ uname -a
Linux cto-oss-p710-rhel7.vpc.internal 3.10.0-229.1.2.el7.ppc64 #1 SMP Fri Mar 6
17:16:30 EST 2015 ppc64 ppc64 ppc64 GNU/Linux
$ clang --version
clang version 3.7.0 (<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_clang.git&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=ZFfGQ9LiDmIp9xgb4E9UnOrMCPMtSR5atUt036Iidmw&e=">http://llvm.org/git/clang.git</a>
aa730d58ae527a8fc48e2460b465259265d328eb) (<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_llvm.git&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=PS8Ya624OljLOoZ2i0OoCmsyLVc3NxadLAKxfx5m0Ik&e=">http://llvm.org/git/llvm.git</a>
4c8545c815522409c11e2349be6e8ccc68071f6b)
Target: powerpc64-unknown-linux-gnu
Thread model: posix
$ cat >/tmp/hello.c
#include <stdio.h>
int main() { puts("hello"); }
^D
$ ld --version
GNU gold (GNU Binutils 2.25.51.20150401) 1.11
...
$ clang -O -flto -c /tmp/hello.c -o /tmp/hello.o
$ clang -v -O -flto /tmp/hello.o -o /tmp/hello
clang version 3.7.0 (<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_clang.git&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=ZFfGQ9LiDmIp9xgb4E9UnOrMCPMtSR5atUt036Iidmw&e=">http://llvm.org/git/clang.git</a>
aa730d58ae527a8fc48e2460b465259265d328eb) (<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__llvm.org_git_llvm.git&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=PS8Ya624OljLOoZ2i0OoCmsyLVc3NxadLAKxfx5m0Ik&e=">http://llvm.org/git/llvm.git</a>
4c8545c815522409c11e2349be6e8ccc68071f6b)
Target: powerpc64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation:
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.8.2
Found candidate GCC installation: /usr/lib/gcc/ppc64-redhat-linux/4.8.3
Selected GCC installation:
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0
Candidate multilib: .;@m64
Selected multilib: .;@m64
"/home/bdedev/bdedev/bin/ld" --hash-style=gnu --no-add-needed --build-id
--eh-frame-hdr -m elf64ppc -dynamic-linker /lib64/ld64.so.1 -o /tmp/hello
/lib/../lib64/crt1.o /lib/../lib64/crti.o
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtbegin.o
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../../../lib64
-L/home/bdedev/bdedev/bin/../lib64 -L/lib/../lib64 -L/usr/lib/../lib64
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../..
-L/home/bdedev/bdedev/bin/../lib -L/lib -L/usr/lib -plugin
/home/bdedev/bdedev/bin/../lib/LLVMgold.so -plugin-opt=mcpu=ppc64 /tmp/hello.o
-lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
--no-as-needed
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtend.o
/lib/../lib64/crtn.o
clang-3.7: error: unable to execute command: Segmentation fault
clang-3.7: error: linker command failed due to signal (use -v to see
invocation)
$ gdb `which ld`
GNU gdb (GDB) Red Hat Enterprise Lin 7.6.1-64.el7
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__gnu.org_licenses_gpl.html&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=gfhlBmTp411m9eK25ug3tGuLvRFNow61nK0QdXcbwnE&e=">http://gnu.org/licenses/gpl.html</a>>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "ppc64-redhat-linux-gnu".
For bug reporting instructions, please see:
<<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gnu.org_software_gdb_bugs_&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=iqOQN2l3qkBhSjWf0zkbKQKqKjJvZXaB-JK8BvtyAhg&s=Bxio1F3k6B7DJFRZkIk24e41rQPtXOXkGA90Xq1bpsU&e=">http://www.gnu.org/software/gdb/bugs/</a>>...
Reading symbols from /home/bdedev/bdedev/bin/ld...done.
(gdb) run --hash-style=gnu --no-add-needed --build-id --eh-frame-hdr -m
elf64ppc -dynamic-linker /lib64/ld64.so.1 -o /tmp/hello /lib/../lib64/crt1.o
/lib/../lib64/crti.o
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtbegin.o
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../../../lib64
-L/home/bdedev/bdedev/bin/../lib64 -L/lib/../lib64 -L/usr/lib/../lib64
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../..
-L/home/bdedev/bdedev/bin/../lib -L/lib -L/usr/lib -plugin
/home/bdedev/bdedev/bin/../lib/LLVMgold.so -plugin-opt=mcpu=ppc64 /tmp/hello.o
-lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
--no-as-needed
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtend.o
/lib/../lib64/crtn.o
Starting program: /home/bdedev/bdedev/bin/ld --hash-style=gnu --no-add-needed
--build-id --eh-frame-hdr -m elf64ppc -dynamic-linker /lib64/ld64.so.1 -o
/tmp/hello /lib/../lib64/crt1.o /lib/../lib64/crti.o
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtbegin.o
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../../../lib64
-L/home/bdedev/bdedev/bin/../lib64 -L/lib/../lib64 -L/usr/lib/../lib64
-L/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/../../..
-L/home/bdedev/bdedev/bin/../lib -L/lib -L/usr/lib -plugin
/home/bdedev/bdedev/bin/../lib/LLVMgold.so -plugin-opt=mcpu=ppc64 /tmp/hello.o
-lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s
--no-as-needed
/home/bdedev/bdedev/bin/../lib/gcc/powerpc64-unknown-linux-gnu/6.0.0/crtend.o
/lib/../lib64/crtn.o
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
warning: File "/home/bdedev/bdedev/lib64/libstdc++.so.6.0.22-gdb.py"
auto-loading has been declined by your `auto-load safe-path' set to
"$debugdir:$datadir/auto-load:/usr/bin/mono-gdb.py".
To enable execution of this file add
add-auto-load-safe-path
/home/bdedev/bdedev/lib64/libstdc++.so.6.0.22-gdb.py
line to your configuration file "/home/bdedev/.gdbinit".
To completely disable this security protection add
set auto-load safe-path /
line to your configuration file "/home/bdedev/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual. E.g., run from the shell:
info "(gdb)Auto-loading safe path"
Missing separate debuginfos, use: debuginfo-install glibc-2.17-78.el7.ppc64
---Type <return> to continue, or q <return> to quit---
Program received signal SIGSEGV, Segmentation fault.
llvm::PrettyStackTraceEntry::PrettyStackTraceEntry (this=0x0)
at
/home/bdedev/llvm-tot-workspace/llvm/lib/Support/PrettyStackTrace.cpp:114
114 PrettyStackTraceEntry::PrettyStackTraceEntry() {
(gdb) up
Killed</pre>
</div>
</p>
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