[poky] web2 on PPC

[Khem Raj]

On 10/4/2011 6:14 AM, Gary Thomas wrote:
> On 2011-10-03 14:14, Khem Raj wrote:
>> On 10/3/2011 7:59 AM, Gary Thomas wrote:
>>> On 2011-09-30 14:15, Gary Thomas wrote:
>>>> I'm trying to run the web-webkit browser on my PowerPC system (built
>>>> using Poky).
>>>> I've built this on ARM and it runs great, but on PowerPC it fails
>>>> almost immediately.
>>>> Following into the failure with GDB, it looks like it's trying to
>>>> build up a string
>>>> using a [possibly] wide character iterator. It fails on line 76 of the
>>>> code below,
>>>> going through it by hand shows that 'iterator' is NULL.
>>>>
>>>> (gdb) dir
>>>> /local/logopak8347tbga_new/tmp/work/ppc603e-amltd-linux/webkit-gtk-1.5.1+svnr90727-r0
>>>>
>>>>
>>>> (gdb) l
>>>> 71 TextBreakIterator* acquireLineBreakIterator(const UChar* string,
>>>> int length, const AtomicString& locale)
>>>> 72 {
>>>> 73 UBreakIterator* iterator =
>>>> LineBreakIteratorPool::sharedPool().take(locale);
>>>> 74
>>>> 75 UErrorCode setTextStatus = U_ZERO_ERROR;
>>>> 76 ubrk_setText(iterator, string, length, &setTextStatus);
>>>> 77 if (U_FAILURE(setTextStatus)) {
>>>> 78 LOG_ERROR("ubrk_setText failed with status %d", setTextStatus);
>>>> 79 return 0;
>>>> 80 }
>>>> (gdb) b 75
>>>> Breakpoint 1 at 0xf8a7440: file
>>>> Source/WebCore/platform/text/TextBreakIteratorICU.cpp, line 75.
>>>>
>>>> Any ideas what might be wrong here? Maybe some confusion about wide vs
>>>> not-wide
>>>> character representation (I've seen this one a lot, especially on
>>>> PowerPC systems)?
>>>> Any clues where to look next?
>>>> I did note that 'locale' into this function is also NULL.
>>>>
>>>> Should I file a bug?
>>>>
>>>> Note: I tried this with the stock Poky master
>>>> 9d1db6cc928199f8ac4960e8d4648563ef141427
>>>> building for qemuppc and running web2 via ssh -X (since qemu doesn't
>>>> support graphics?)
>>>> The failure is the same, so this is not something special in my setup.
>>>>
>>>> Note 2: it's difficult to get this to fail when running in qemu since
>>>> it only fails
>>>> when it's loading and rendering the www.google.co.uk default page. I
>>>> couldn't figure
>>>> out how to get my qemu system to be able to access that page over the
>>>> net, but I ran
>>>> the same Yocto filesystem on my hardware (this is not a hardware bug)
>>>> with the same
>>>> failure. Maybe someone smarter than me can show me how to get qemu to
>>>> actually access
>>>> the internet (when the machine that's running qemu is inside a NAT'd
>>>> zone)?
>>>>
>>>> Thanks for any help/ideas
>>>>
>>>
>>> Filed as http://bugzilla.pokylinux.org/show_bug.cgi?id=1570
>>>
>>> Still looking for ideas on where to look, how to debug this.
>>
>> such problems can happen when autoconf variables are not cached with
>> right values. So look into site files. What variables to look for can be
>> taken from config.log of the package.
>>
>
> It turns out the problem is that the ICU library does not work
> properly (at all!) when the host and target systems have different
> endianness. If I install ICU libraries which were built on a
> native PowerPC system, the 'web2' program works.
>

compare the configure outputs of icu between cross and native ppc build