(nlm_backend_data, nlm_alpha_backend_data): New accessor macros.
(struct nlm_backend_data): New field no_uninitialized_data.
(nlm_no_uninitialized_data): New accessor macro.
* nlmcode.h (nlm_compute_section_file_positions): Handle
no_uninitialized_data.
(nlm_external_reloc_compare): Sort relocs by address for a
particular symbol, to make the sort more stable.
(nlm_write_object_contents): Cast the arguments to qsort. Get the
value of a debugging symbol the same way we get the value of a
normal symbol.
* nlm32-alpha.c: Various changes. Write out GP and .lita relocs.
Set no_uninitialized_data to true.
* nlm32-i386.c (nlm32_i386_backend), nlm32-sparc.c
(nlm32_sparc_backend): Set no_uninitialized_data field false.
* nlmswap.h (nlm_swap_fixed_header_out): Zero out destination
before filling it in.