purgatory: Add no-zero-initialized-in-bss flag

It seems some toolchains will put zero-initialized variables like purgatory's
sha256_regions into the BSS section.  These symbols cannot be processed by
machine_apply_elf_rel() and lead to build errors.  To avoid this problem add
the compiler flag no-zero-initialized-in-bss to the purgatory CFLAGS.

Fixes build errors like these:

  Symbol: sha256_regions is in a bss section cannot set

Reported here:

  http://lists.infradead.org/pipermail/kexec/2014-November/013052.html

Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Simon Horman <horms@verge.net.au>

0 files changed, 0 insertions, 0 deletions