Hi all,
Yesterday I upgraded the gcc version I use to compile the daily build to 4.7.1.
This causes very strange errors when compiling 2.6.39 - 3.3:
FATAL: media_build/v4l/tuner: sizeof(struct i2c_device_id)=32 is not a modulo
of the size of section __mod_i2c_device_table=18.
Fix definition of struct i2c_device_id in mod_devicetable.h
This error does not appear when compiling with gcc 4.6.3, and I see absolutely
nothing
wrong with mod_devicetable.h.
I tried very hard to figure out what is going on and why older and newer kernels
are not affected, but I still have no idea.
The error itself it reported by scripts/mod/file2alias.c. I can suppress that
error
but that will just lead to a modpost crash later in the compile process.
The tuner.o file always causes this. Commenting tuner.o in the Makefile will
cause
the same problems in other modules (cafe_ccic), but there are also i2c modules
that
compile just fine.
Does anyone have an insight into this? Did something magical change in kernel
3.4
that fixed this?
Regards,
Hans
On 18/06/12 20:58, Hans Verkuil wrote:
This message is generated daily by a cron job that builds media_tree for
the kernels and architectures in the list below.
Results of the daily build of media_tree:
date: Mon Jun 18 19:00:12 CEST 2012
git hash: 5472d3f17845c4398c6a510b46855820920c2181
gcc version: i686-linux-gcc (GCC) 4.7.1
host hardware: x86_64
host os: 3.4.07-marune
linux-git-arm-eabi-davinci: WARNINGS
linux-git-arm-eabi-exynos: WARNINGS
linux-git-arm-eabi-omap: WARNINGS
linux-git-i686: WARNINGS
linux-git-m32r: WARNINGS
linux-git-mips: WARNINGS
linux-git-powerpc64: WARNINGS
linux-git-x86_64: WARNINGS
linux-2.6.31.12-x86_64: WARNINGS
linux-2.6.32.6-x86_64: WARNINGS
linux-2.6.33-x86_64: WARNINGS
linux-2.6.34-x86_64: WARNINGS
linux-2.6.35.3-x86_64: WARNINGS
linux-2.6.36-x86_64: WARNINGS
linux-2.6.37-x86_64: WARNINGS
linux-2.6.38.2-x86_64: WARNINGS
linux-2.6.39.1-x86_64: ERRORS
linux-3.0-x86_64: ERRORS
linux-3.1-x86_64: ERRORS
linux-3.2.1-x86_64: ERRORS
linux-3.3-x86_64: ERRORS
linux-3.4-x86_64: WARNINGS
linux-2.6.31.12-i686: WARNINGS
linux-2.6.32.6-i686: WARNINGS
linux-2.6.33-i686: WARNINGS
linux-2.6.34-i686: WARNINGS
linux-2.6.35.3-i686: WARNINGS
linux-2.6.36-i686: WARNINGS
linux-2.6.37-i686: WARNINGS
linux-2.6.38.2-i686: WARNINGS
linux-2.6.39.1-i686: ERRORS
linux-3.0-i686: ERRORS
linux-3.1-i686: ERRORS
linux-3.2.1-i686: ERRORS
linux-3.3-i686: ERRORS
linux-3.4-i686: WARNINGS
apps: WARNINGS
spec-git: WARNINGS
sparse: ERRORS
Detailed results are available here:
http://www.xs4all.nl/~hverkuil/logs/Monday.log
Full logs are available here:
http://www.xs4all.nl/~hverkuil/logs/Monday.tar.bz2
The V4L-DVB specification from this daily build is here:
http://www.xs4all.nl/~hverkuil/spec/media.html
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