Initialize the section names for the RS/6000 at this point.
+ Specify filename to assembler.
We want to go into the TOC section so at least one .toc will be emitted.
Also, in order to output proper .bs/.es pairs, we need at least one static
[RW] section emitted.
rs6000_gen_section_name (&xcoff_read_only_section_name, \
main_input_filename, ".ro_"); \
\
+ output_file_directive (FILE, main_input_filename); \
toc_section (); \
if (write_symbols != NO_DEBUG) \
private_data_section (); \