** Changed in: gcc
Importance: Unknown = High
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https://bugs.launchpad.net/bugs/491872
Title:
[armel] Atomic intrinsics are not implemented correctly
To manage
FIx confirmed in fixed in 4.4.2-5ubuntu1
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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Thanks!
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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fixed in 4.4.2-5ubuntu1
** Changed in: gcc-4.4 (Ubuntu)
Status: Confirmed = Fix Released
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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This bug was fixed in the package glib2.0 - 2.23.0-1ubuntu3
---
glib2.0 (2.23.0-1ubuntu3) lucid; urgency=low
* Rebuild with gcc 4.4.2-5ubuntu1. LP: #491872.
-- Matthias Klose d...@ubuntu.com Mon, 14 Dec 2009 15:57:11 +
** Changed in: glib2.0 (Ubuntu)
Status: Triaged
** Changed in: gcc
Status: In Progress = Fix Released
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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confirmed, the testcase in the GCC testsuite still fails
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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** Changed in: gcc-4.4 (Ubuntu)
Status: Fix Released = Confirmed
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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Unfortunately, the __sync_synchronize() bug appears still to be present in the
updated GCC.
A call to this intrinsic still disappears in the compiler's output.
The __sync_lock_test_and_set() bug may still be present; however it is
also possible that the __sync_synchronize() bug is masking the
-mimplicit-it=thumb does now seem to be passed correctly to the
assembler, though:
$ echo 'void f(void) { asm volatile(moveq r0, #1); }' | gcc -c -o
tmp.o -xc - objdump -d tmp.o
f:
...
4: bf08it eq
6: 2001moveq r0, #1
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[armel] Atomic
according to
https://launchpad.net/ubuntu/+source/gcc-4.4/4.4.2-3ubuntu2/+build/1378632
the patch (attached here is well) is applied. I'll update it to include
the testcase, which I missed in the backport.
--
[armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc-4.4 (Ubuntu)
Status: Confirmed = In Progress
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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This bug was fixed in the package gcc-4.4 - 4.4.2-3ubuntu2
---
gcc-4.4 (4.4.2-3ubuntu2) lucid; urgency=low
* Update to SVN 20091203 from the gcc-4_4-branch (r154951), Fixes:
PR middle-end/42049, PR c++/42234, PR fortran/41278.
* PR target/42263, fix wrong code bugs in SMP
milestoning glib part for alpha-3 so this comes back and we remember to
verify that a respin has happened after gcc is fixed.
** Changed in: glib2.0 (Ubuntu)
Importance: Undecided = High
** Changed in: glib2.0 (Ubuntu)
Status: New = Triaged
** Changed in: glib2.0 (Ubuntu)
confirming gcc issue. and tentatively putting on alpha-3 milestone. Not
sure how to proceed. If its not known upstream we should probably file a
bug there etc. Leaving to doko to drive this bug.
** Changed in: gcc-4.4 (Ubuntu)
Importance: Undecided = High
** Changed in: gcc-4.4 (Ubuntu)
I expect to be able to post a patch soon; it may be simplest to leave
this unfixed until then.
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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This patch should fix the issue with __sync_lock_release():
http://gcc.gnu.org/ml/gcc-patches/2009-12/msg00198.html
The __sync_synchronize() is not fixed by this— another patch should
follow soon.
--
[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
This patch should fix the __sync_synchronize() issue, by making sure GCC does
not optimise away the call to the libgcc function which implements this:
http://gcc.gnu.org/ml/gcc-patches/2009-08/msg00600.html
These should now be fixed on the GCC trunk and await backporting to the
upstream 4.4
** Changed in: gcc
Status: Unknown = In Progress
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[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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