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* [Bug tdep/14222] New: insufficient stack alignment
@ 2012-06-11 19:03 jan.kratochvil at redhat dot com
  2012-06-13 15:54 ` [Bug tdep/14222] " jan.kratochvil at redhat dot com
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: jan.kratochvil at redhat dot com @ 2012-06-11 19:03 UTC (permalink / raw)
  To: gdb-prs

http://sourceware.org/bugzilla/show_bug.cgi?id=14222

             Bug #: 14222
           Summary: insufficient stack alignment
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: tdep
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jan.kratochvil@redhat.com
    Classification: Unclassified
            Target: i386-unknown-linux-gnu


GCC since 4.6 keeps stack aligned to 32 bytes (128 bits).
http://groups.google.com/group/ia32-abi/browse_thread/thread/4f9b3e5069943bf1

AFAIK there is neither Intel CPUs nor glibc requirement for it, 16 bytes
alignment would be sufficient.

amd64-tdep.c already keeps 16 byte alignment but i386-tdep.c does not.
Proposing to increase alignment of both to 32 bytes in all cases.

This is KFAIL tracker for: gdb.arch/i386-sse-stack-align.exp

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^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2012-06-13 21:32 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-06-11 19:03 [Bug tdep/14222] New: insufficient stack alignment jan.kratochvil at redhat dot com
2012-06-13 15:54 ` [Bug tdep/14222] " jan.kratochvil at redhat dot com
2012-06-13 21:21 ` cvs-commit at gcc dot gnu.org
2012-06-13 21:31 ` cvs-commit at gcc dot gnu.org
2012-06-13 21:32 ` jan.kratochvil at redhat dot com

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