<html>
<head>
<base href="http://llvm.org/bugs/" />
</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 --- - segfault generating debug symbols"
href="http://llvm.org/bugs/show_bug.cgi?id=22114">22114</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>segfault generating debug symbols
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>f.sowade@r9e.de
</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>Created <span class=""><a href="attachment.cgi?id=13645" name="attach_13645" title="Code crashing clang">attachment 13645</a> <a href="attachment.cgi?id=13645&action=edit" title="Code crashing clang">[details]</a></span>
Code crashing clang
The attached code segfaults clang when built using the current debian nightly
builds:
$ clang++-3.6 -g -c -std=c++11 final.cpp
0 libLLVM-3.6.so.1 0x00007f9367a25152 llvm::sys::PrintStackTrace(_IO_FILE*) +
34
1 libLLVM-3.6.so.1 0x00007f9367a238a1
2 libpthread.so.0 0x00007f93661258d0
3 libLLVM-3.6.so.1 0x00007f9366e02a75 llvm::DwarfUnit::addString(llvm::DIE&,
llvm::dwarf::Attribute, llvm::StringRef) + 21
4 libLLVM-3.6.so.1 0x00007f9366de1ead
llvm::DwarfCompileUnit::applyVariableAttributes(llvm::DbgVariable const&,
llvm::DIE&) + 189
5 libLLVM-3.6.so.1 0x00007f9366dec31e
llvm::DwarfDebug::finishVariableDefinitions() + 302
6 libLLVM-3.6.so.1 0x00007f9366df0c26 llvm::DwarfDebug::finalizeModuleInfo() +
38
7 libLLVM-3.6.so.1 0x00007f9366dfd366 llvm::DwarfDebug::endModule() + 38
8 libLLVM-3.6.so.1 0x00007f9366dd2077
llvm::AsmPrinter::doFinalization(llvm::Module&) + 567
9 libLLVM-3.6.so.1 0x00007f9366c09599
llvm::FPPassManager::doFinalization(llvm::Module&) + 73
10 libLLVM-3.6.so.1 0x00007f9366c14575
llvm::legacy::PassManagerImpl::run(llvm::Module&) + 789
11 clang 0x000000000089272a
clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions
const&, clang::TargetOptions const&, clang::LangOptions const&,
llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) +
3178
12 clang 0x0000000000880fd0
13 clang 0x0000000000a4abb5 clang::ParseAST(clang::Sema&, bool,
bool) + 741
14 clang 0x00000000006ed416 clang::FrontendAction::Execute() + 118
15 clang 0x00000000006ca641
clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 289
16 clang 0x00000000006b3363
clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1827
17 clang 0x00000000006ad998 cc1_main(llvm::ArrayRef<char const*>,
char const*, void*) + 1256
18 clang 0x00000000006acfc6 main + 9910
19 libc.so.6 0x00007f9364cfdb45 __libc_start_main + 245
20 clang 0x00000000006ad035
Stack dump:
0. Program arguments: /usr/lib/llvm-3.6/bin/clang -cc1 -triple
x86_64-pc-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier
-main-file-name final.cpp -mrelocation-model static -mthread-model posix
-mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases
-munwind-tables -fuse-init-array -target-cpu x86-64 -target-linker-version 2.25
-g -dwarf-column-info -coverage-file /crosscan/src/reduce/final.cpp
-resource-dir /usr/lib/llvm-3.6/bin/../lib/clang/3.6.0 -internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/x86_64-linux-gnu/c++/4.9
-internal-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/../../../../include/c++/4.9/backward
-internal-isystem /usr/local/include -internal-isystem
/usr/lib/llvm-3.6/bin/../lib/clang/3.6.0/include -internal-externc-isystem
/usr/bin/../lib/gcc/x86_64-linux-gnu/4.9/include -internal-externc-isystem
/usr/include/x86_64-linux-gnu -internal-externc-isystem /include
-internal-externc-isystem /usr/include -std=c++11 -fdeprecated-macro
-fdebug-compilation-dir /crosscan/src/reduce -ferror-limit 19 -fmessage-length
278 -mstackrealign -fobjc-runtime=gcc -fcxx-exceptions -fexceptions
-fdiagnostics-show-option -fcolor-diagnostics -o final.o -x c++ final.cpp
1. <eof> parser at end of file
2. Code generation
clang: error: unable to execute command: Segmentation fault
clang: error: clang frontend command failed due to signal (use -v to see
invocation)
Debian clang version 3.6.0-svn225298-1~exp1 (trunk) (based on LLVM 3.6.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
clang: note: diagnostic msg: PLEASE submit a bug report to
<a href="http://bugs.debian.org/">http://bugs.debian.org/</a> and include the crash backtrace, preprocessed source,
and associated run script.
clang: note: diagnostic msg:
********************
PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang: note: diagnostic msg: /tmp/final-88639e.cpp
clang: note: diagnostic msg: /tmp/final-88639e.sh
clang: note: diagnostic msg:
********************
$ clang++-3.6 --version
Debian clang version 3.6.0-svn225298-1~exp1 (trunk) (based on LLVM 3.6.0)
Target: x86_64-pc-linux-gnu
Thread model: posix
compiling the same code without -g works:
$ clang++-3.6 -c -std=c++11 final.cpp
$</pre>
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