[FFmpeg-devel] ADRL causes fatal error in dsputil_arm_s.S

[Måns Rullgård]

"Yonas ." <googelly.eyes at gmail.com> writes:

> On Mon, Jan 19, 2009 at 10:20 AM, M?ns Rullg?rd <mans at mansr.com> wrote:
>
>> Guillaume POIRIER <poirierg at gmail.com> writes:
>>
>> > Hello,
>> >
>> > On Mon, Jan 19, 2009 at 3:52 PM, Yonas . <googelly.eyes at gmail.com>
>> wrote:
>> >> I'm compiling ffmpeg for the iPhone and have 99% of it done, but one
>> >> line is causing the assembler to crash. In
>> >> libavcodec/arm/dsputil_arm_s.S --> put_pixels8_xy2_arm function:
>> >>
>> >> @ void func(uint8_t *block, const uint8_t *pixels, int line_size, int h)
>> >>         @ block = word aligned, pixles = unaligned
>> >>         pld [r1]
>> >>         stmfd sp!, {r4-r11,lr} @ R14 is also called LR
>> >>         adrl r12, 5f
>> >> ...
>> >>
>> >> the adrl instruction causes the following error:
>> >>
>> >>
>> /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/../libexec/gcc/arm-apple-darwin9/4.0.1/as:
>> >> fatal error in
>> /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/../libexec/gcc/darwin/arm/as
>> >> make: *** [arm/dsputil_arm_s.o] Error 1
>> >>
>> >> How can we work around this? I'm using SVN r16669.
>> >
>> > What's the problem? Does the iPhone SDK forces to use thumb instructions?
>>
>> The iphone assembler predates the dinosaurs and is missing many things.
>
> Even though the Apple assembler has some differences, most of the code now
> compiles (after patching). ADRL is the last hurdle.

Complain to Apple's support line.

-- 
M?ns Rullg?rd
mans at mansr.com