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[Bug dynamic-link/14831] Redirecting a library to libm.so via LD_AUDIT induces segmentation fault in _dl_profile_fixup
- From: "amonakov at gmail dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sources dot redhat dot com
- Date: Mon, 12 Nov 2012 07:27:33 +0000
- Subject: [Bug dynamic-link/14831] Redirecting a library to libm.so via LD_AUDIT induces segmentation fault in _dl_profile_fixup
- Auto-submitted: auto-generated
- References: <bug-14831-131@http.sourceware.org/bugzilla/>
http://sourceware.org/bugzilla/show_bug.cgi?id=14831
Alexander Monakov <amonakov at gmail dot com> changed:
What |Removed |Added
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Attachment #6727|0 |1
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--- Comment #1 from Alexander Monakov <amonakov at gmail dot com> 2012-11-12 07:27:33 UTC ---
Created attachment 6728
--> http://sourceware.org/bugzilla/attachment.cgi?id=6728
simplified testcase
Actually, redirecting libraries via LD_AUDIT mechanism is not required to
trigger the bug. It suffices to use the minimal audit library that implements
only la_version and an executable that links to libm.so.
I'm surprised this simplified test fails. Is it covered in glibc's LD_AUDIT
tests? Does it point to an inefficiency somewhere (LD_AUDIT library is
essentially a no-op in this case, it's odd that the loader's behavior differs)?
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