powerpc/fadump: Set core e_flags using kernel's ELF ABI version
authorDaniel Axtens <dja@axtens.net>
Tue, 6 Sep 2016 05:32:42 +0000 (15:32 +1000)
committerMichael Ellerman <mpe@ellerman.id.au>
Tue, 13 Sep 2016 07:36:01 +0000 (17:36 +1000)
commitd8bced27be25537bde3714cbdb34ccece81f6a0d
tree8af76b0e99556211d7f04253221125844deb44a1
parent7c98bd72081c44670e2d0b60aed364180ebc0611
powerpc/fadump: Set core e_flags using kernel's ELF ABI version

Firmware Assisted Dump is a facility to dump kernel core with assistance
from firmware. As part of this process the kernel ELF ABI version is
stored in the core file.

Currently fadump.h defines this to 0 if it is not already defined. This
clashes with a define in elf.h which sets it based on the current task -
not based on the kernel's ELF ABI version.

Use the compiler-provided #define _CALL_ELF which tells us the ELF ABI
version of the kernel to set e_flags, this matches what binutils does.

Remove the definition in fadump.h, which becomes unused.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/include/asm/fadump.h
arch/powerpc/kernel/fadump.c