On Fri, 30 Jan 2015, David Malcolm wrote: > gcc/ChangeLog: > PR jit/64810 > * Makefile.in (GCC_OBJS): Add gcc-main.o. > * gcc-main.c: New file, containing "main" taken from gcc.c. > * gcc.c (do_self_spec): Free decoded_options. > (class driver): Move declaration to gcc.h. > (main): Move declaration and implementation to new file > gcc-main.c. > (driver_get_configure_time_options): New function. > * gcc.h (class driver): Move this declaration here, from > gcc.c. > (driver_get_configure_time_options): New declaration.
The driver changes are OK. Though in the JIT I suspect you might need to process DRIVER_SELF_SPECS as well - not everything handled through DRIVER_SELF_SPECS is a default cc1 would follow anyway, sometimes it may actually set things rather than merely make them visible to other specs. And indeed CC1_SPEC may also be needed. Some architectures use DRIVER_SELF_SPECS to handle -march=native, some use CC1_SPEC - so if you configure --with-arch=native (a perfectly legitimate way to configure GCC if you're building it for one particular system to use to build code that will run only there) then processing OPTION_DEFAULT_SPECS will cause -march=native to appear in the list of options, and the other two specs are needed to convert it into the underlying options understood by the back-end option handling. -- Joseph S. Myers jos...@codesourcery.com
