[PATCH] PR ld/18160: Segmentation Fault in lang_gc_sections when linking elf_x86_64 output

[Alan Modra]

On Wed, Mar 25, 2015 at 04:21:14PM -0700, H.J. Lu wrote:
> This patch ignores gc-sections if input relocation is incompatible with
> output.  OK for master?

No.  For one, it looks like you can't call _bfd_elf_relocs_compatible
with a non-ELF input, which is either a bug in that function or you
need to first test for ELF.

Secondly, if you take a look at the gc-sections code you'll see that
it handles non-ELF input files by simply not garbage collecting those
files.  Your patch would disable gc-sections entirely on finding a
non-ELF file.  I'm not sure how important it is to keep the old
behaviour, but I'm guessing you did not intend to make that change.

-- 
Alan Modra
Australia Development Lab, IBM