Split the performance into LP: #767986
** Changed in: gcc-linaro
Milestone: None = 4.5-2011.04-0
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https://bugs.launchpad.net/bugs/758082
Title:
[armel] segfaults
** Changed in: gcc-linaro
Status: Triaged = Fix Committed
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Title:
[armel] segfaults in make check pass when built with
** Changed in: gcc-linaro
Status: Fix Committed = Fix Released
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Title:
[armel] segfaults in make check pass when built
lp:~rsandifo/gcc-linaro/lp-758082 fixes this but the code generated is
poor:
foo:
push{r1, r2, r3}
ldr r3, [r0, #0]
push{lr}
sub sp, sp, #8
ldr r3, [r3, #8]
subsr2, r3, #6
it ne
movne r2, #1
cmp
** Branch linked: lp:~ams-codesourcery/gcc-linaro/lp758082
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Title:
[armel] segfaults in make check pass when built with
This bug was fixed in the package augeas - 0.8.0-0ubuntu4
---
augeas (0.8.0-0ubuntu4) natty; urgency=low
* debian/rules: Work around segfault in make check by building with -O0 on
armel.
Fixes armel FTBFS (LP: #758082)
-- Jani Monoses j...@ubuntu.com Tue, 12 Apr 2011
** Branch linked: lp:ubuntu/augeas
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Title:
[armel] segfaults in make check pass when built with optimization
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Just poking about, it looks like just recompiling syntax.c with -O0 gets it
working.
(indeed compiling it with -O1 makes it fail more tests that -O2).
It's a whole chain of passing va_args down throuhg about 5 different
levels of printf type thing.
Dave
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This is from a -O1 of syntax.c - note how it stamps on r2 as a temp
which is the 1st variadic argument before it gets to stack the original.
.global syntax_errorvoid syntax_error(struct info *info, const
char *format, ...) {
.thumb
.thumb_func
.type
the effect look similar to the one affecting telepathy-glib
https://bugs.launchpad.net/ubuntu/+source/telepathy-glib/+bug/736081
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Thanks to Ramana for suggesting -fno-shrink-wrap which does indeed fix it.
(L153 is an early exit).
Dave
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Title:
[armel]
This test case fails with -O1 but works with -fno-shrink-wrap and seems
to be the same failure pattern.
** Attachment added: shrink wrap error case
https://bugs.launchpad.net/ubuntu/+source/augeas/+bug/758082/+attachment/2024821/+files/shrinkwraperr.c
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** Tags added: shrinkwrap
** Changed in: gcc-linaro
Status: New = Triaged
** Changed in: gcc-linaro
Importance: Undecided = High
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