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

[Måns Rullgård]

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.

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