[XviD-devel] Mach-O and SECTION .rodata

Takashi Mochizuki mochi at da2.so-net.ne.jp
Tue Dec 9 05:31:09 CET 2008

Hew! Cool.
Now MacOS X can process asm code without alignment hack. (latest nasm  
also has that bug though)

How about to describe it in README? like:
- yasm or later is required for MacOS X build. -


On 2008/12/08, at 3:53, David DeHaven wrote:

>>>> After a few hour search, I have found
>>>> - <http://lists.mplayerhq.hu/pipermail/ffmpeg-cvslog/2008-August/015984.html
>>>> Directive ALIGN for SECTION .rodata may not function well - under
>>>> "some" MacOS X; at least my mac.
>>>> (It seems to be, not yasm/nasm issue though... by ld64?)
>>> I'm going to go out on a limb here and say ld64 is doing exactly  
>>> what
>>> it's supposed to do and the bug is in the mach-o object code in  
>>> nasm/
>>> yasm.
>> Seems I was right. In yasm/modules/objfmts/macho/macho-objfmt.c if I
>> force address alignment in macho_objfmt_calc_sectsize then it builds
>> and runs just fine using .rodata instead of .text.
>> Running xvid_bench right now and it hasn't crashed yet...
> Patch was submitted to yasm-devel and is now in yasm SVN HEAD (as of
> r2161). I built xvid_bench with it and it ran just fine.
> -DrD-
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