search for: _add_gas

...ing link-errors. My develop environment is: Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn) Target: x86_64-apple-darwin12.2.1 Thread model: posix the code is attached, I get this error (there is no such error under gcc tool-chain): Undefined symbols for architecture armv7: "_add_gas", referenced from: _main in main_ios_clang.o ld: symbol(s) not found for architecture armv7 clang: error: linker command failed with exit code 1 (use -v to see invocation) I find after add '_' to add_gas label in iosasm_clang.s(change all add_gas to _add_gas) will get rid of thi...

Thanks, Renato. I'm actually porting a project which is based on GAS to iOS platform. I'll report my result. Best regards! ashi On Feb 13, 2013, at 6:20 PM, Renato Golin <renato.golin at linaro.org> wrote: > I don't think there is such a document... > > There isn't a 1:1 compatibility assurance with any syntax, including the UAL and GAS, but there is good

On Tue, Feb 19, 2013 at 06:53:19PM +0800, Ashi wrote: > My develop environment is: > Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn) > > Undefined symbols for architecture armv7: > "_add_gas", referenced from: > _main in main_ios_clang.o Apple requires a leading _ for all external symbols. So "works as expected". Joerg

...berger <joerg at britannica.bec.de > wrote: > On Tue, Feb 19, 2013 at 06:53:19PM +0800, Ashi wrote: > > My develop environment is: > > Apple LLVM version 4.2 (clang-425.0.24) (based on LLVM 3.2svn) > > > > Undefined symbols for architecture armv7: > > "_add_gas", referenced from: > > _main in main_ios_clang.o > > Apple requires a leading _ for all external symbols. So "works as > expected". > > Joerg > _______________________________________________ > LLVM Developers mailing list > LLVMdev at cs.uiuc.edu...