On Thu, Sep 24, 2015 at 4:05 PM, Richard Henderson <r...@redhat.com> wrote:
>> If the assembler and linker generate errors, it further >> delays deployment in GCC. > > If the assembler generates errors, then surely it's easy to error out at > configure time, printing a note about the service pack. > > So, assuming this is true, when configuring for aix7.1, > > * configure --without-dwarf2 disables support for dwarf2 entirely, > avoiding problems with any missing SP. Presumably by *not* including > config/rs6000/aix71.h. > > * configure checks as/ld as required, erroring out if the SP isn't present; > dwarf2out always emits all of the usual dwarf data. > > Sound good? Older assemblers produce an error when presented with the new sections. I was planning to commit the current patch, which is supported by AIX 7.1. And follow up with another patch that adds a configure test for the additional sections support (HAVE_XCOFF_DWARF_EXTRA?) to tweak the output. As you mentioned, the minimal sections should allow debugging with -O0 -g2, which is equivalent to the stabs functionality. Thanks, David
