Hi Antoine,

I did exactly what you said-- not set armv7=1 in gyp_defines.

export GYP_DEFINES="target_arch=arm
sysroot=~/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root
disable_nacl=1 use_system_ffmpeg=1"

I rebuilt chromium.

And then I reset my kernel so that it does not use NEON.

This does not help and the browser keeps crashing again even though I do not
set armv7=1 in gyp_defines. So is there a way to disable neon settings on
chromium browser and make chromium working on a hardware that does not
support NEON?

Thanks,
Sofia


On Fri, Dec 11, 2009 at 5:39 PM, Antoine Labour <pi...@chromium.org> wrote:

>
>
> On Fri, Dec 11, 2009 at 3:28 PM, Sofia Tahseen <sofia.tahs...@gmail.com>wrote:
>
>> Hi Joel/Erik/All,
>>
>> I don't think armv5 is an issue. Reason being I used the jaunty armv5
>> libraries to build chrome.
>>
>> I tried to debug the issue with gdb.
>> gdb chrome
>> GNU gdb 6.8-debian
>> Copyright (C) 2008 Free Software Foundation, Inc.
>> License GPLv3+: GNU GPL version 3 or later <
>> http://gnu.org/licenses/gpl.html>
>> This is free software: you are free to change and redistribute it.
>> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
>> and "show warranty" for details.
>> This GDB was configured as "arm-linux-gnueabi"...
>>
>> (gdb)
>> (gdb) run
>> Starting program: /home/adas/Release/chrome
>> [Thread debugging using libthread_db enabled]
>> [New Thread 0x4112ac80 (LWP 9722)]
>> [New Thread 0x41d49440 (LWP 9727)]
>> [New Thread 0x42549440 (LWP 9728)]
>> [New Thread 0x42d49440 (LWP 9729)]
>> [New Thread 0x43549440 (LWP 9730)]
>> [New Thread 0x43d49440 (LWP 9731)]
>> [New Thread 0x44549440 (LWP 9732)]
>> [New Thread 0x44d49440 (LWP 9733)]
>> [New Thread 0x44d69440 (LWP 9734)]
>> [New Thread 0x458ff440 (LWP 9738)]
>> [New Thread 0x460ff440 (LWP 9739)]
>> [Thread 0x460ff440 (LWP 9739) exited]
>>
>> Program received signal SIGILL, Illegal instruction.
>> [Switching to Thread 0x4112ac80 (LWP 9722)]
>> 0x0081caec in S32A_Opaque_BlitRow32_neon ()
>> Current language:  auto; currently asm
>>
>>
>> The error S32A_Opaque_BlitRow32_neon () had to do something with the
>> floating point setting of the kernel. I checked my kernel configuration and
>> neon was not set. So I set it and it rebuild my kernel and booted my jaunty.
>> Now it works perfectly...without any crashes.
>>
>> Key : In order to run chromium we need to set the neon in the kernel
>> configuration.
>>
>
> Note, if you don't set armv7=1 when you build chromium, it shouldn't use
> the NEON paths, so you shouldn't run into that problem. But it's better to
> enable it in the kernel if your hardware supports it.
>
> Antoine
>
>
>> Regards,
>> Sofia
>>
>>
>> On Fri, Dec 11, 2009 at 2:27 AM, Erik Corry <erik.co...@gmail.com> wrote:
>>
>>> 2009/12/10 Sofia Tahseen <sofia.tahs...@gmail.com>:
>>> > You are so right, Joel... I corrected my .so and now I could build the
>>> > chrome browser ...finally!!  I copied the whole /src/out/Release
>>> directory
>>> > to my jaunty on the BeagleBoard(256MB RAM). I try to launch chrome
>>> through:
>>> > ./chrome
>>> > It starts up chrome, and then immediately kills chrome. I get an
>>> Illegal
>>> > Instruction. I restart and I can now see chrome as shown in the
>>> attachment
>>> > but I cannot browse. When I reload the page, it again kills chrome
>>> saying
>>> > Illegal instruction. Has anyone seen this before? I have my proxy
>>> settings
>>> > set too..
>>>
>>> This could be anything, but it might be this bug in some versions of
>>> gcc:  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39604
>>>
>>> If that's it then adding -fno-tree-sink to the flags used for V8 will
>>> help.  It's a bug that only shows up on ARM and only on some versions
>>> of gcc.
>>>
>>>
>>>
>>> > Any help is highly appreciated.
>>> > Thanks,
>>> > Sofia
>>> >
>>> > On Wed, Dec 9, 2009 at 6:00 PM, Joel Stanley <j...@chromium.org>
>>> wrote:
>>> >>
>>> >> On Thu, Dec 10, 2009 at 05:14, Sofia Tahseen <sofia.tahs...@gmail.com
>>> >
>>> >> wrote:
>>> >>
>>> >> >
>>> >> >
>>> /home/adas/0_Data/0_Lin/091203_Chromium_OS/toolchain/arm-2009q1/bin/../lib/gcc/arm-none-linux-gnueabi/4.3.3/../../../../arm-none-linux-gnueabi/bin/ld:
>>> >> > skipping incompatible
>>> >> >
>>> >> >
>>> /home/adas/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root/usr/lib/librt.so
>>> >> > when searching for -lrt
>>> >>
>>> >> The errors are indicative of trying to link against libraries from a
>>> >> different platform.  To confirm: check the output of
>>> >>
>>> >>  $ 'file
>>> >>
>>> /home/adas/x-tools/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sys-root/usr/lib/librt.so
>>> >>
>>> >> I suspect it will tell you it's a symbolic link to /lib/librt.so.1,
>>> >> which itself is a symbolic link to
>>> >> /lib/librt-2.10.2.so - note these paths are relative to /, not to
>>> your
>>> >> sysroot directory.
>>> >>
>>> >> You have two slightly solutions
>>> >>  - adjust the symlinks in sys-root/usr/lib so they point to the files
>>> >> in sys-root//lib
>>> >>  - replace the smymlinks with the actual libraries, ie copy files from
>>> >> sys-root/lib to sys-root/usr/lib
>>> >>
>>> >> I would be happy to hear a neater solution for this, but the above
>>> >> worked for me.
>>> >>
>>> >> Cheers,
>>> >>
>>> >> Joel
>>> >
>>> > --
>>> > Chromium Developers mailing list: chromium-dev@googlegroups.com
>>> > View archives, change email options, or unsubscribe:
>>> > http://groups.google.com/group/chromium-dev
>>>
>>
>>
>

-- 
Chromium Developers mailing list: chromium-dev@googlegroups.com 
View archives, change email options, or unsubscribe: 
    http://groups.google.com/group/chromium-dev

Reply via email to