gcc's crt0.o

Dan Stowell danstowell at gmail.com
Thu Apr 5 14:22:36 PDT 2007


Coincidentally, I was reading about this earlier today. Basically
Apple would like to prevent you using crt0.o:
http://developer.apple.com/qa/qa2001/qa1118.html

Dan

2007/4/5, Michael Brian Bentley <bentley at crenelle.com>:
> I find that I'm using macports more and more as I try to do builds
> using scripts that were developed on GNU/Linux systems with GNU
> versions of tools. I am finding that there's just enough difference
> in the use of some tools like sed and cp (of all utilities, cp?) that
> force me to add the GNU version to /opt/local/bin using mac ports so
> I can move on.
>
> I have a command line tool that I'm trying to build on OS X for OS X,
> using gcc 3. During the link phase, it searches for, but can't find
> crt0.o. When I run this build script on a machine using a SuSE
> distribution of GNU/Linux, no problem.
>
> I'm using the macports installs for gcc41 and gcc42.
>
> According to some recent reading,
> http://www.delorie.com/djgpp/v2faq/faq8_2.html for example, I get the
> impression that crt0.o is something that's provided by the gcc
> compiler for the target platform. I see crt0.o provided with the
> arm-elf xcompiler builds of gcc, but not for the intel / intel
> versions of gcc. The linker is definitely looking for crt0.o, and the
> script that calls gcc does not mention crt0.o anywhere. The crt0.o
> file is mentioned in numerous other places for other builds.
>
> I have found other files that seem related, like crtbegin.o,
> crtbeginS.o, and so on.
>
> Can anyone shed some light on this?
>
> Thanks,
>
> -Mike
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