XCOFF ld segfaults when running ld testsuite

The binutils XCOFF support doesn't handle random linker scripts very
well at all.  These tweaks to final_link fix segfaults when some
linker created sections are discarded due to "/DISCARD/ : { *(.*) }"
in scripts.  The xcoff_mark change is necessary to not segfault on
symbols defined in scripts, which may be bfd_link_hash_defined yet
have u.def.section set to bfd_und_section_ptr.  (Which might seem odd,
but occurs during early stages of linking before input sections are
mapped.)

	* xcofflink.c (xcoff_mark): Don't mark const sections.
	(bfd_xcoff_record_link_assignment): Add FIXME.
	(_bfd_xcoff_bfd_final_link): Don't segfault on assorted magic
	sections being discarded by linker script.

0 files changed, 0 insertions, 0 deletions