[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc Importance: Unknown = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/491872 Title: [armel] Atomic intrinsics are not implemented correctly To manage notifications about this bug go to: https://bugs.launchpad.net/gcc/+bug/491872/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
FIx confirmed in fixed in 4.4.2-5ubuntu1 -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
Thanks! -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
fixed in 4.4.2-5ubuntu1 ** Changed in: gcc-4.4 (Ubuntu) Status: Confirmed = Fix Released -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 = Fix Released -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc Status: In Progress = Fix Released -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
confirmed, the testcase in the GCC testsuite still fails -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc-4.4 (Ubuntu) Status: Fix Released = Confirmed -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 fix.
$ apt-cache policy gcc-4.4 cpp-4.4
gcc-4.4:
Installed: 4.4.2-3ubuntu2
Candidate: 4.4.2-3ubuntu2
Version table:
*** 4.4.2-3ubuntu2 0
500 http://arm-ports-ubuntu lucid/main Packages
100 /var/lib/dpkg/status
cpp-4.4:
Installed: 4.4.2-3ubuntu2
Candidate: 4.4.2-3ubuntu2
Version table:
*** 4.4.2-3ubuntu2 0
500 http://arm-ports-ubuntu lucid/main Packages
100 /var/lib/dpkg/status
$ echo 'void f(void) { __sync_synchronize(); }' | gcc -S -o- -xc -
.syntax unified
.arch armv7-a
.eabi_attribute 27, 3
.fpu vfpv3-d16
.eabi_attribute 20, 1
.eabi_attribute 21, 1
.eabi_attribute 23, 3
.eabi_attribute 24, 1
.eabi_attribute 25, 1
.eabi_attribute 26, 2
.eabi_attribute 30, 6
.eabi_attribute 18, 4
.thumb
.file
.text
.align 2
.global f
.thumb
.thumb_func
.type f, %function
f:
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 1, uses_anonymous_args = 0
@ link register save eliminated.
push{r7}
add r7, sp, #0
mov sp, r7
pop {r7}
bx lr
.size f, .-f
.ident GCC: (Ubuntu 4.4.2-3ubuntu2) 4.4.2
.section.note.GNU-stack,,%progbits
__sync_lock_test_and_set_* still don't contain a barrier in the right place,
though this may be due to the above bug.
8e04 __sync_lock_test_and_set_4:
8e04: e92d 41f0 stmdb sp!, {r4, r5, r6, r7, r8, lr}
8e08: f640 76c0 movwr6, #4032 ; 0xfc0
8e0c: 4605mov r5, r0
8e0e: 460fmov r7, r1
8e10: f6cf 76ff movtr6, #65535 ; 0x
8e14: 682cldr r4, [r5, #0]
8e16: 4639mov r1, r7
8e18: 462amov r2, r5
8e1a: 4620mov r0, r4
8e1c: 47b0blx r6
8e1e: 2800cmp r0, #0
8e20: d1f8bne.n 8e14 __sync_lock_test_and_set_4+0x10
8e22: 4620mov r0, r4
8e24: e8bd 81f0 ldmia.w sp!, {r4, r5, r6, r7, r8, pc}
--
[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
-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
--
[armel] Atomic intrinsics are not implemented correctly
https://bugs.launchpad.net/bugs/491872
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[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc-4.4 (Ubuntu) Status: Confirmed = In Progress -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 support on ARM, backport from the trunk. LP: #491872 . * Pass -mimplicit-it=thumb to as by default on ARM. LP: #488302. -- Matthias Klose d...@ubuntu.com Fri, 04 Dec 2009 10:06:17 +0100 ** Changed in: gcc-4.4 (Ubuntu) Status: In Progress = Fix Released -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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) Milestone: None = lucid-alpha-3 -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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) Status: New = Confirmed ** Changed in: gcc-4.4 (Ubuntu) Milestone: None = lucid-alpha-3 -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
I expect to be able to post a patch soon; it may be simplest to leave this unfixed until then. -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
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 branch. I've referenced the relevant GCC bugzilla entry from this bug. ** Bug watch added: GCC Bugzilla #42263 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42263 ** Also affects: gcc via http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42263 Importance: Unknown Status: Unknown -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 491872] Re: [armel] Atomic intrinsics are not implemented correctly
** Changed in: gcc Status: Unknown = In Progress -- [armel] Atomic intrinsics are not implemented correctly https://bugs.launchpad.net/bugs/491872 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
