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<body><span class="vcard"><a class="email" href="mailto:clopez@igalia.com" title="Carlos Alberto Lopez Perez <clopez@igalia.com>"> <span class="fn">Carlos Alberto Lopez Perez</span></a>
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<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Not possible to GDB WebKitGtk+ 2.13.3: demangler-warning: unable to demangle"
href="https://bugs.webkit.org/show_bug.cgi?id=159919">bug 159919</a>
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<td>clopez@igalia.com
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Not possible to GDB WebKitGtk+ 2.13.3: demangler-warning: unable to demangle"
href="https://bugs.webkit.org/show_bug.cgi?id=159919#c6">Comment # 6</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED INVALID - Not possible to GDB WebKitGtk+ 2.13.3: demangler-warning: unable to demangle"
href="https://bugs.webkit.org/show_bug.cgi?id=159919">bug 159919</a>
from <span class="vcard"><a class="email" href="mailto:clopez@igalia.com" title="Carlos Alberto Lopez Perez <clopez@igalia.com>"> <span class="fn">Carlos Alberto Lopez Perez</span></a>
</span></b>
<pre>I think the issue is this one:
<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61321">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61321</a>
I'm able to reproduce the issue with this test case that comes from <<a href="https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68159#c4">https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68159#c4</a>>:
$ echo 'void _ZSt7forwardIRKZN5Write14DataMapGrammarISt20back_insert_iteratorISsEEC4EvEUlRT_E_EOS5_RNSt16remove_referenceIS5_E4typeE() {} int main() {}' | gcc -xc - -o /tmp/a.out && gdb /tmp/a.out
[...]
Reading symbols from /tmp/a.out.../build/gdb-GtCqbH/gdb-7.11.1/gdb/cp-support.c:1595: demangler-warning: unable to demangle '_ZSt7forwardIRKZN5Write14DataMapGrammarISt20back_insert_iteratorISsEEC4EvEUlRT_E_EOS5_RNSt16remove_referenceIS5_E4typeE' (demangler failed with signal 11)
Unable to dump core, use `ulimit -c unlimited' before executing GDB next time.
/build/gdb-GtCqbH/gdb-7.11.1/gdb/cp-support.c:1608: demangler-warning: unable to demangle '_ZSt7forwardIRKZN5Write14DataMapGrammarISt20back_insert_iteratorISsEEC4EvEUlRT_E_EOS5_RNSt16remove_referenceIS5_E4typeE' (demangler failed with signal 11)</pre>
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