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* [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs.
@ 2013-08-29 3:46 carlos at redhat dot com
2013-08-29 3:46 ` [Bug libc/15905] " carlos at redhat dot com
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: carlos at redhat dot com @ 2013-08-29 3:46 UTC (permalink / raw)
To: glibc-bugs
http://sourceware.org/bugzilla/show_bug.cgi?id=15905
Bug ID: 15905
Summary: [ARM] IFUNC support broken for REL relocs.
Product: glibc
Version: 2.18
Status: NEW
Severity: normal
Priority: P2
Component: libc
Assignee: unassigned at sourceware dot org
Reporter: carlos at redhat dot com
CC: drepper.fsp at gmail dot com
On ARM in dl-machine.h (elf_machine_rel) when handling R_ARM_IRELATIVE
relocations for STT_GNU_IFUNC we fail to pass dl_hwcap to the IFUNC resolver
resulting in the wrong function being selected for the current hardware.
When building glibc with multi-arch support and the VFP ABI this will cause the
NEON variants of functions to be selected even though NEON hardware might not
be present.
On hardware without NEON support the built glibc will fail to run correctly.
This is immediately obvious as most of the testsuite will fail with SIGILL on
this hardware.
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^ permalink raw reply [flat|nested] 5+ messages in thread* [Bug libc/15905] [ARM] IFUNC support broken for REL relocs. 2013-08-29 3:46 [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs carlos at redhat dot com @ 2013-08-29 3:46 ` carlos at redhat dot com 2013-08-29 4:02 ` carlos at redhat dot com ` (2 subsequent siblings) 3 siblings, 0 replies; 5+ messages in thread From: carlos at redhat dot com @ 2013-08-29 3:46 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=15905 Carlos O'Donell <carlos at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at sourceware dot org |carlos at redhat dot com -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/15905] [ARM] IFUNC support broken for REL relocs. 2013-08-29 3:46 [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs carlos at redhat dot com 2013-08-29 3:46 ` [Bug libc/15905] " carlos at redhat dot com @ 2013-08-29 4:02 ` carlos at redhat dot com 2013-08-29 4:24 ` carlos at redhat dot com 2014-06-13 12:58 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: carlos at redhat dot com @ 2013-08-29 4:02 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=15905 --- Comment #1 from Carlos O'Donell <carlos at redhat dot com> --- Posted patch: http://sourceware.org/ml/libc-ports/2013-08/msg00053.html -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/15905] [ARM] IFUNC support broken for REL relocs. 2013-08-29 3:46 [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs carlos at redhat dot com 2013-08-29 3:46 ` [Bug libc/15905] " carlos at redhat dot com 2013-08-29 4:02 ` carlos at redhat dot com @ 2013-08-29 4:24 ` carlos at redhat dot com 2014-06-13 12:58 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: carlos at redhat dot com @ 2013-08-29 4:24 UTC (permalink / raw) To: glibc-bugs http://sourceware.org/bugzilla/show_bug.cgi?id=15905 Carlos O'Donell <carlos at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #2 from Carlos O'Donell <carlos at redhat dot com> --- commit d0721e703d222c01a9e8c329311c4fb01dac6972 Author: Carlos O'Donell <carlos@redhat.com> Date: Thu Aug 29 00:17:33 2013 -0400 ARM: Pass dl_hwcap to IFUNC resolver. For REL relocs pass dl_hwcap to the IFUNC resolver as is required by the IFUNC API (bug 15905). -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug libc/15905] [ARM] IFUNC support broken for REL relocs. 2013-08-29 3:46 [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs carlos at redhat dot com ` (2 preceding siblings ...) 2013-08-29 4:24 ` carlos at redhat dot com @ 2014-06-13 12:58 ` fweimer at redhat dot com 3 siblings, 0 replies; 5+ messages in thread From: fweimer at redhat dot com @ 2014-06-13 12:58 UTC (permalink / raw) To: glibc-bugs https://sourceware.org/bugzilla/show_bug.cgi?id=15905 Florian Weimer <fweimer at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Flags| |security- -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2014-06-13 12:58 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-08-29 3:46 [Bug libc/15905] New: [ARM] IFUNC support broken for REL relocs carlos at redhat dot com 2013-08-29 3:46 ` [Bug libc/15905] " carlos at redhat dot com 2013-08-29 4:02 ` carlos at redhat dot com 2013-08-29 4:24 ` carlos at redhat dot com 2014-06-13 12:58 ` fweimer at redhat dot com
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