Bug#648233: SIGILL in rsvg-convert on armel

[Mike Hommey]

reassign 648233 release.debian.org
thanks

nmu libxau_1:1.0.6-4 . armel . -m "Rebuild for armv4t"
nmu libxcb_1.7-4 . armel . -m "Rebuild for armv4t"

On Wed, Nov 09, 2011 at 09:15:13PM +0100, Mike Hommey wrote:
> Package: librsvg2-bin
> Justification: renders package unusable
> Severity: grave
> 
> Iceweasel 8.0-3 failed to build on armel:
> 
> On Wed, Nov 09, 2011 at 06:45:04PM +0000, Debian buildds wrote:
> >  * Source package: iceweasel
> >  * Version: 8.0-3
> >  * Architecture: armel
> >  * State: failed
> >  * Suite: sid
> >  * Builder: alwyn.debian.org
> >  * Build log: https://buildd.debian.org/fetch.cgi?pkg=iceweasel&arch=armel&ver=8.0-3&stamp=1320864081&file=log
> > 
> > Please note that these notifications do not necessarily mean bug reports
> > in your package but could also be caused by other packages, temporary
> > uninstallabilities and arch-specific breakages.  A look at the build log
> > despite this disclaimer would be appreciated however.
> 
> The build failure looks like this:
> > rsvg-convert -w 16 -h 16 -o default16.png ../../../debian/branding/iceweasel_icon.svg
> > make[5]: *** [default16.png] Illegal instruction
> 
> Which suggests rsvg-convert or one of the libs it uses is compiled for >
> armv5t, making it not work on armv5t (what our buildds actually are) or
> armv4t (what we actually target)

So, it turns out 8.0-1 has been built with the same version of
librsvg2-bin on a different buildd, which is supposedly the same
hardware as the other failing ones.
So the difference in installed packages versions are:

                      ok         fail
man-db              2.6.0.2-2  2.6.0.2-3
libxau-dev          1:1.0.6-3  1:1.0.6-4
libxau6             1:1.0.6-3  1:1.0.6-4
libxcb-render0      1.7-3      1.7-4
libxcb-render0-dev  1.7-3      1.7-4
libxcb-shape0       1.7-3      1.7-4
libxcb-shm0         1.7-3      1.7-4
libxcb-shm0-dev     1.7-3      1.7-4

I doubt man-db is involved, here, so i checked two almost random packages
in this list: libxcb-shape0 and libxau6. Bingo:

On the files in version 1.7-4 and 1:1.0.6-4 (resp.):

Attribute Section: aeabi
File Attributes
  Tag_CPU_name: "7-A"
  Tag_CPU_arch: v7
  Tag_CPU_arch_profile: Application
  Tag_ARM_ISA_use: Yes
  Tag_THUMB_ISA_use: Thumb-2
  Tag_VFP_arch: VFPv3-D16
  Tag_ABI_PCS_wchar_t: 4
  Tag_ABI_FP_denormal: Needed
  Tag_ABI_FP_exceptions: Needed
  Tag_ABI_FP_number_model: IEEE 754
  Tag_ABI_align8_needed: Yes
  Tag_ABI_align8_preserved: Yes, except leaf SP
  Tag_ABI_enum_size: int
  Tag_ABI_HardFP_use: SP and DP
  Tag_ABI_optimization_goals: Aggressive Speed
  Tag_DIV_use: Not allowed

On the files in version 1.7-3 and 1:1.0.6-3 (resp.):

Attribute Section: aeabi
File Attributes
  Tag_CPU_name: "ARM9TDMI"
  Tag_CPU_arch: v4T
  Tag_ARM_ISA_use: Yes
  Tag_THUMB_ISA_use: Thumb-1
  Tag_ABI_PCS_wchar_t: 4
  Tag_ABI_FP_denormal: Needed
  Tag_ABI_FP_exceptions: Needed
  Tag_ABI_FP_number_model: IEEE 754
  Tag_ABI_align8_needed: Yes
  Tag_ABI_align8_preserved: Yes, except leaf SP
  Tag_ABI_enum_size: int
  Tag_ABI_optimization_goals: Aggressive Speed
  Tag_DIV_use: Not allowed

Both packages in their new version were *not* autobuilt, while the old
one was. Please double check the armel packages you upload.

Cheers,

Mike