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[Bug dynamic-link/14370] ld.so crashes on mismatched TLS/non-TLS symbols
- From: "ppluzhnikov at google dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Wed, 05 Sep 2012 15:24:05 +0000
- Subject: [Bug dynamic-link/14370] ld.so crashes on mismatched TLS/non-TLS symbols
- Auto-submitted: auto-generated
- References: <bug-14370-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14370
Paul Pluzhnikov <ppluzhnikov at google dot com> changed:
What |Removed |Added
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CC| |ppluzhnikov at google dot
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--- Comment #22 from Paul Pluzhnikov <ppluzhnikov at google dot com> 2012-09-05 15:24:05 UTC ---
(In reply to comment #20)
> The performance impact is too small to be visible unless most
> of time is spent in _dl_symbol_lookup_x.
For a large application with 1000+ shared libraries (which is how we run unit
tests here), time-to-main often *is* dominated by _dl_symbol_lookup_x.
"make && make check" are about the worst possible way to measure the impact --
they invoke small programs with (relatively) very few dynamic symbol
resolutions.
Measuring startup time for Firefox or OpenOffice would (I expect) be much more
meaningful.
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