Re: Newbie to Darwin linking issue I think?
site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Shantonu On Jun 4, 2005, at 4:06 PM, Damien Cooke wrote: I build the two object files as such gcc -g -fPIC -c source/lpmalloc.c -o output/lpmalloc.o gcc -g -fPIC -c source/global.c -o output/global.o This is what I get: ld: for architecture ppc ld: Undefined symbols: _printf libtool: internal link edit command failed Damien This email sent to ssen@opendarwin.org _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... Why are you using libtool(1) instead of the compiler driver cc(1) to create your shared library? Your problem is that you are not linking against libSystem.dylib (via -lSystem). You're also missing a host of other libraries automatically included when you link a dylib with cc(1). for example: /usr/bin/libtool -dynamic -arch_only ppc -noall_load - weak_reference_mismatches non-weak -v -o libfoo.dylib -L/usr/lib/gcc/ powerpc-apple-darwin8/4.0.0 -L/usr/lib/gcc/powerpc-apple- darwin8/4.0.0 -L/usr/lib/gcc/powerpc-apple-darwin8/4.0.0/../../.. foo.o -lgcc -lgcc_eh -lSystemStubs -lmx -lSystem You should use cc/gcc and the -dynamiclib option to build your library. You probably also want to read the various man pages and use the -install_name flag as well. Sorry for the dumb question. I am porting my malloc to Darwin. I have built it as a shared dynamic library on Solaris. However I am having a large amount of problems with this on OS X 10.4.1 using XCode 2.0 and gcc 4.0 Then I use Libtool as such libtool -dynamic -o bin/liblpmalloc.so output/lpmalloc.o output/global.o I am probably doing something really dumb but any help would be greatly appreciated. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/ssen% 40opendarwin.org This email sent to site_archiver@lists.apple.com
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Shantonu Sen