[Ffmpeg-devel] Mac OSX debug build problems

[Anders Moden]

24 okt 2006 kl. 23.09 skrev Guillaume POIRIER:

> On 10/24/06, Anders Moden <ffmpeg at tooltech-software.com> wrote:
>>
>> 24 okt 2006 kl. 22.23 skrev Guillaume Poirier:
>>
>> >
>> > On Oct 24, 2006, at 9:37 , Anders Moden wrote:
>> >
>> >> Hi !
>> >>
>> >> Why is it always a lot of problems using --disable-strip -- 
>> disable-
>> >> opts
>> >>
>> >> I am always stuck in a situation where I need to debug the code.
>> >> On OSX I always get
>> >>
>> >> cc -I/Users/amo/ffmpeg/libswscale   -DHAVE_AV_CONFIG_H -
>> >> D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_ISOC9X_SOURCE -I/
>> >> Users/amo/ffmpeg -I/Users/amo/ffmpeg -I/Users/amo/ffmpeg/libavutil
>> >> -I/Users/amo/faad2/include -no-cpp-precomp -pipe -
>> >> force_cpusubtype_ALL -Wno-sign-compare -g -Wdeclaration-after-
>> >> statement -Wall -Wno-switch -Wdisabled-optimization -Wpointer-
>> >> arith -Wredundant-decls -Winline -mdynamic-no-pic  -c -o cabac.o
>> >> cabac.c
>> >> In file included from cabac.c:32:
>> >> cabac.h: In function 'get_cabac_noinline':
>> >> cabac.h:525: error: can't find a register in class 'GENERAL_REGS'
>> >> while reloading 'asm'
>> >> make[1]: *** [cabac.o] Error 1
>> >> make: *** [lib] Error 2
>> >>
>> >> somewhere. Either mmx or swscale. The mmx stuff can be disabled,
>> >> but the swscale can not.
>> >
>> > CFLAGS+=-fomit-pointer
>>
>> Nope. I can get it to compile without using -O3 on some files
>
> but this one needs -fomit pointer and level of optimilation above -O0.
> This is a shortcoming of GCC. If you can test with icc, maybe you
> would be able to compile with baby without optimizations.

Ok I see. The compiler ran out of registers in the asm sections...

Is this the case on other platforms as well or is it build specific  
for GCC OSX

/Anders