MIPS: Support R_MIPS_PC{16,21,26} rel-style relocs
authorPaul Burton <paul.burton@imgtec.com>
Thu, 4 Feb 2016 13:05:05 +0000 (13:05 +0000)
committerRalf Baechle <ralf@linux-mips.org>
Fri, 13 May 2016 12:01:54 +0000 (14:01 +0200)
commit5d3c792583b6040607e178925ccc8316a207210f
tree7d632647af12f2b52553132b190c276407c54aab
parentad8319ea4647c897c837643a611714a83d8f6a0f
MIPS: Support R_MIPS_PC{16,21,26} rel-style relocs

MIPS32 code uses rel-style relocs, and MIPS32r6 modules may include
R_MIPS_PC16, R_MIPS_PC21 & R_MIPS_PC26 relocations. We thus need to
support these relocations in order to load MIPS32r6 kernel modules. This
patch adds such support, which is similar to the rela-style support in
module-rela.c but making use of the implicit addend from the instruction
encoding.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Steven J. Hill <sjhill@realitydiluted.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/12435/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/kernel/module.c