On Wed, Sep 12, 2007 at 11:06:12AM -0700, Rick Mann wrote: > > On Sep 12, 2007, at 1:57 AM, Rask Ingemann Lambertsen wrote: > > >If your target defines the INIT_SECTION_ASM_OP macro, then __main() > >isn't normally used. > > Thanks for that info. If I understand it correctly, the various > macros need to be defined when building GCC, right (not when building > target code). Yes. Most ELF targets don't use __main() while e.g. all a.out targets must (I think). > How do I determine how my target was built? I chose --target=arm-elf, > and searching in the GCC sources for macro names like > TARGET_ASM_NAMED_SECTION and INIT_SECTION_ASM_OP turn up nothing in > gcc/config/arm/elf.h. Where else should I be looking? For ELF targets, usually gcc/config/elfos.h (which many targets include indirectly through gcc/tm.h which lives in the build directory and is set up in gcc/config.gcc - look for arm*-*-elf and the tm_file definition). > If I need to change the configuration, how do I do that? On the > configure line? Or do I pre-define some things when calling make? Adding #undef INIT_SECTION_ASM_OP to gcc/config/arm/elf.h ought to do the trick. -- Rask Ingemann Lambertsen
