lucid has seen the end of its life and is no longer receiving any
updates. Marking the lucid task for this ticket as "Won't Fix".
** Changed in: eglibc (Ubuntu Lucid)
Status: Confirmed => Won't Fix
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** Changed in: linaro-toolchain-misc
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/601030
Title:
broken configuration test with fortify source
To manage not
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** Branch linked: lp:ubuntu/eglibc
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broken configuration test with fortify source
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fixed in maverick, and gawk built
** Changed in: eglibc (Ubuntu Maverick)
Status: In Progress => Fix Released
** Changed in: gawk (Ubuntu Maverick)
Status: Invalid => Fix Released
** Changed in: gawk (Ubuntu Maverick)
Milestone: ubuntu-10.10-beta => None
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broken configurati
** Tags added: patch
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broken configuration test with fortify source
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** Changed in: eglibc (Ubuntu Maverick)
Status: Confirmed => In Progress
** Changed in: eglibc (Ubuntu Maverick)
Milestone: ubuntu-10.10-beta => ubuntu-10.10
** Changed in: eglibc (Ubuntu Maverick)
Assignee: Canonical Foundations Team (canonical-foundations) =>
(unassigned)
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http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=c044aa75354b48d4b7aaffe465706282192e54c2
** Patch added: "c044aa75354b48d4b7aaffe465706282192e54c2.patch"
https://bugs.edge.launchpad.net/ubuntu/+source/eglibc/+bug/601030/+attachment/1558654/+files/c044aa75354b48d4b7aaffe465706282192e54c2
** Changed in: glibc
Status: Unknown => Confirmed
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broken configuration test with fortify source
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** Package changed: gcc-4.4 (Ubuntu Maverick) => eglibc (Ubuntu
Maverick)
** Bug watch added: Sourceware.org Bugzilla #11968
http://sourceware.org/bugzilla/show_bug.cgi?id=11968
** Also affects: glibc via
http://sourceware.org/bugzilla/show_bug.cgi?id=11968
Importance: Unknown
Sta
Oh, and it fails for me with gcc-4.3 and gcc-4.5 as well. I think the
differences in failure modes was due to stack randomization somehow.
** Attachment removed: "minimal.c"
https://bugs.edge.launchpad.net/ubuntu/+source/gcc-4.4/+bug/601030/+attachment/1537770/+files/minimal.c
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broken conf
** Attachment added: "minimal.c"
https://bugs.edge.launchpad.net/ubuntu/+source/gcc-4.4/+bug/601030/+attachment/1537771/+files/minimal.c
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broken configuration test with fortify source
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** Attachment added: "minimal.c"
https://bugs.edge.launchpad.net/ubuntu/+source/gcc-4.4/+bug/601030/+attachment/1537770/+files/minimal.c
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broken configuration test with fortify source
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FWIW, this is broken on Lucid too. I've attached a slightly more minimal
testcase that disables stack randomization and adds an alarm call to
make the loop more obvious.
** Attachment added: "minimal.c"
https://bugs.edge.launchpad.net/ubuntu/+source/gcc-4.4/+bug/601030/+attachment/1537759/+fil
** Also affects: linaro-toolchain-misc
Importance: Undecided
Status: New
** Changed in: gcc-linaro
Status: New => Invalid
** Changed in: linaro-toolchain-misc
Importance: Undecided => High
** Changed in: linaro-toolchain-misc
Assignee: (unassigned) => Chung-Lin Tang (clt
eglibc-2.11.1/sysdeps/unix/sysv/linux/x86_64/longjmp_chk.S is
broken. It saves the value of 'pass' in ecx for later use but ecx is
trashed by a syscall.
The syscall is used to bring in the signal stack so that the fortify
code can print an error message if needed. The problem goes away with
The fault occurs as the 'pass' value given to longjmp() gets corrupted
before use by setjmp(), causing the 'setjmp() < 2' test to fail and the
system to loop forever. The only assembler level fortify/non-fortify
difference is a call to longjmp_chk instead of longjmp.
Note that shifting 'mystack'
** Also affects: gcc-linaro
Importance: Undecided
Status: New
** Tags added: amd64
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I went through all the optimisations that are in -O2 but not -O1
(-falign-functions -falign-jumps -falign-labels -fcaller-saves
-fcrossjumping -fcse-follow-jumps -fdelete-null-pointer-checks
-fexpensive-optimizations -fforward-propagate -fgcse -finline-small-
functions -fipa-cp -foptimize-register-
It seems to go into the same infinite loop under strace both with -O2
and -O1, although -O1 exits normally and immediately without strace.
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** Attachment added: "preprocessed source"
https://bugs.edge.launchpad.net/ubuntu/+source/gcc-4.4/+bug/601030/+attachment/1534143/+files/conftest.i
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broken configuration test with fortify source
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Confirmed in ronne's maverick amd64 chroot. Attached conftest.c and
preprocessed source. strace shows:
...
setrlimit(RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}) = 0
sigaltstack({ss_sp=0x7fffd7df0130, ss_flags=0, ss_size=8192}, NULL) = 0
rt_sigaction(SIGSEGV, {0x4008d0, [], SA_RESTORE
the test succeeds with gcc-4.4 in maverick built without the Linaro
patchset.
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broken configuration test with fortify source
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still reproducible for me on maverick, note that on Debian/sid, it does
work:
gcc-4.4 -g -O2 -fstack-protector -D_FORTIFY_SOURCE -Wall conftest.c &&
./a.out
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broken configuration test with fortify source
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I can't seem to reproduce this in current Maverick; gawk builds fine.
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** Changed in: gcc-4.4 (Ubuntu Maverick)
Assignee: (unassigned) => Canonical Foundations Team
(canonical-foundations)
** Changed in: gawk (Ubuntu Maverick)
Assignee: (unassigned) => Canonical Foundations Team
(canonical-foundations)
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broken configuration test with fortify source
h
** Changed in: gawk (Ubuntu Maverick)
Milestone: maverick-alpha-3 => ubuntu-10.10-beta
** Changed in: gcc-4.4 (Ubuntu Maverick)
Milestone: maverick-alpha-3 => ubuntu-10.10-beta
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broken configuration test with fortify source
https://bugs.launchpad.net/bugs/601030
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breaks the gawk build on amd64
** Changed in: gawk (Ubuntu Maverick)
Importance: Undecided => High
** Changed in: gawk (Ubuntu Maverick)
Status: New => Confirmed
** Changed in: gawk (Ubuntu Maverick)
Milestone: None => maverick-alpha-3
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broken configuration test with fortify so
seen on amd64
** Changed in: gcc-4.4 (Ubuntu Maverick)
Importance: Undecided => High
** Changed in: gcc-4.4 (Ubuntu Maverick)
Status: New => Confirmed
** Changed in: gcc-4.4 (Ubuntu Maverick)
Milestone: None => maverick-alpha-3
** Also affects: gawk (Ubuntu)
Importance: Undeci
** Attachment added: "conftest.c"
http://launchpadlibrarian.net/51288395/conftest.c
** Also affects: gcc-4.4 (Ubuntu Maverick)
Importance: Undecided
Status: New
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broken configuration test with fortify source
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