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[Bug translator/16166] stap -vvv causes SIGSEGV when using @perf operator
- From: "jlebon at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 13 Nov 2013 17:40:15 +0000
- Subject: [Bug translator/16166] stap -vvv causes SIGSEGV when using @perf operator
- Auto-submitted: auto-generated
- References: <bug-16166-6586 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16166
Jonathan Lebon <jlebon at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #1 from Jonathan Lebon <jlebon at redhat dot com> ---
The reason for this is that dwarf_var_expanding_visitor::visit_perf_op()
creates a new block, but never assigns it a token. This has repercussions later
in dead_stmtexpr_remover::visit_block, which prints out a helper message with
the token when an empty block gets elided and verbosity is high enough.
Fixed in commit 9eaacea.
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