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* [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags
@ 2012-12-03 17:43 jsm28 at gcc dot gnu.org
  2012-12-03 17:47 ` [Bug ports/14908] " jsm28 at gcc dot gnu.org
                   ` (4 more replies)
  0 siblings, 5 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-12-03 17:43 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=14908

             Bug #: 14908
           Summary: ARM setjmp/longjmp wrongly save/restore floating-point
                    flags
           Product: glibc
           Version: 2.16
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ports
        AssignedTo: unassigned@sourceware.org
        ReportedBy: jsm28@gcc.gnu.org
                CC: carlos@systemhalted.org, roland@gnu.org
    Classification: Unclassified


The ARM implementation of setjmp and longjmp wrongly saves and restores fpscr -
but saving and restoring floating-point exceptions and rounding modes is
contrary to the requirements of C99 and C11.  fpscr should not be saved and
restored, and there should be an architecture-independent testcase to verify
that exceptions and rounding modes are the same on the second return from
setjmp as they were when longjmp was called, not the same as on the original
call to setjmp.

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug ports/14908] ARM setjmp/longjmp wrongly save/restore floating-point flags
  2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
@ 2012-12-03 17:47 ` jsm28 at gcc dot gnu.org
  2013-05-14 19:51 ` jsm28 at gcc dot gnu.org
                   ` (3 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2012-12-03 17:47 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=14908

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
               Host|                            |arm*-*

--- Comment #1 from Joseph Myers <jsm28 at gcc dot gnu.org> 2012-12-03 17:47:00 UTC ---
Bug 14909 is the corresponding bug for MIPS.

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* [Bug ports/14908] ARM setjmp/longjmp wrongly save/restore floating-point flags
  2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
  2012-12-03 17:47 ` [Bug ports/14908] " jsm28 at gcc dot gnu.org
@ 2013-05-14 19:51 ` jsm28 at gcc dot gnu.org
  2013-12-30  9:38 ` vapier at gentoo dot org
                   ` (2 subsequent siblings)
  4 siblings, 0 replies; 6+ messages in thread
From: jsm28 at gcc dot gnu.org @ 2013-05-14 19:51 UTC (permalink / raw)
  To: glibc-bugs

http://sourceware.org/bugzilla/show_bug.cgi?id=14908

Joseph Myers <jsm28 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #2 from Joseph Myers <jsm28 at gcc dot gnu.org> 2013-05-14 19:51:15 UTC ---
Fixed for 2.18 by:

commit 0175558aa0a16a647ee368898a83a7d42e2011e8
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Tue May 14 19:50:14 2013 +0000

    Stop ARM setjmp/longjmp saving/restoring fpscr (bug 14908).

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug ports/14908] ARM setjmp/longjmp wrongly save/restore floating-point flags
  2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
  2012-12-03 17:47 ` [Bug ports/14908] " jsm28 at gcc dot gnu.org
  2013-05-14 19:51 ` jsm28 at gcc dot gnu.org
@ 2013-12-30  9:38 ` vapier at gentoo dot org
  2013-12-30  9:38 ` vapier at gentoo dot org
  2014-06-14  7:40 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: vapier at gentoo dot org @ 2013-12-30  9:38 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=14908

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://sourceware.org/bugz
                   |                            |illa/show_bug.cgi?id=16379

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug ports/14908] ARM setjmp/longjmp wrongly save/restore floating-point flags
  2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
                   ` (2 preceding siblings ...)
  2013-12-30  9:38 ` vapier at gentoo dot org
@ 2013-12-30  9:38 ` vapier at gentoo dot org
  2014-06-14  7:40 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: vapier at gentoo dot org @ 2013-12-30  9:38 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=14908

Mike Frysinger <vapier at gentoo dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://sourceware.org/bugz
                   |                            |illa/show_bug.cgi?id=14909

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^ permalink raw reply	[flat|nested] 6+ messages in thread

* [Bug ports/14908] ARM setjmp/longjmp wrongly save/restore floating-point flags
  2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
                   ` (3 preceding siblings ...)
  2013-12-30  9:38 ` vapier at gentoo dot org
@ 2014-06-14  7:40 ` fweimer at redhat dot com
  4 siblings, 0 replies; 6+ messages in thread
From: fweimer at redhat dot com @ 2014-06-14  7:40 UTC (permalink / raw)
  To: glibc-bugs

https://sourceware.org/bugzilla/show_bug.cgi?id=14908

Florian Weimer <fweimer at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|                            |security-

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^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2014-06-14  7:40 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-12-03 17:43 [Bug ports/14908] New: ARM setjmp/longjmp wrongly save/restore floating-point flags jsm28 at gcc dot gnu.org
2012-12-03 17:47 ` [Bug ports/14908] " jsm28 at gcc dot gnu.org
2013-05-14 19:51 ` jsm28 at gcc dot gnu.org
2013-12-30  9:38 ` vapier at gentoo dot org
2013-12-30  9:38 ` vapier at gentoo dot org
2014-06-14  7:40 ` fweimer at redhat dot com

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