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Re: [Tinycc-devel] x86-64 port


From: shinichiro . h
Subject: Re: [Tinycc-devel] x86-64 port
Date: Tue, 02 Dec 2008 03:52:17 +0900
User-agent: Wanderlust/2.14.0 (Africa) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (Goj┼Ź) APEL/10.7 Emacs/22.2 (x86_64-pc-linux-gnu) MULE/5.0 (SAKAKI)

Hi,

I pushed all of my patch into mob branch.

Most patches are trivial. Replacing Elf32 to ElfW or int to long or using 
sizeof(ElfW(Dyn)) instead of 8 or something. The main change, which introduces 
x86-64 support, is the following change. This change is mostly done inside 
TCC_TARGET_X86_64. So, I think it doesn't make sense to split this change into 
smaller pieces.

http://repo.or.cz/w/tinycc.git?a=commit;h=fa7159be0a14f713fffa1fcc692b87e69c318060

Another change I should mention is the following change. This change introduces 
__builtin_frame_address(0), which is one of GCC extension. I think introducing 
this extension is the simplest way to implement stdarg.h (in GCC x86-64 ABI, 
integers and floating point values are passed by registers, and the address of 
the last argument isn't sufficient). I think this extension is useful (e.g., 
obtain stack trace) and the change is relatively small. So, I didn't enclose 
this change with #ifdef TCC_TARGET_X86_64.

http://repo.or.cz/w/tinycc.git?a=commit;h=44753fd383ba22a330d837538c237bf176b9c84f

Please tell me if there are something wrong, and I'll fix them.

Thanks,




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