On Wed, Jun 26, 2019 at 07:42:38AM +0200, Florian Doersch wrote: > on my AIX gcc, there are multiple "-g" variants available. Are you referring to -gxcoff vs -gxcoff+ or are you referring to other debug formats? > > The problem is, that only "-gxcoff" creates proper (with AIX debugger > dbx) debuggable binaries. By default, GCC generates "xcoff+", which is an extended format understood by GNU GDB. The default AIX XCOFF format cannot represent some data structures properly. > > How can I tell the gcc (i.e while building the gcc itself) that it > should use xcoff as the default? I havent found anything working about it. > > I already tried to set PREFERRED_DEBUGGING_TYPE in > gcc/config/rs6000/aix72.h to XCOFF_DEBUG, but it did not make any > difference? XCOFF_DEBUG is the default for AIX. GCC generates the extended format. Limiting GCC to the more restrictive format by default requires more invasive changes. Thanks, David
