4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: dann frazier <dann.fraz...@canonical.com>
commit 67dfa1751ce71e629aad7c438e1678ad41054677 upstream.
GCC6 (and Linaro's 2015.12 snapshot of GCC5) has a new default that uses
adrp/ldr or adrp/add to address literal pools. When CONFIG_ARM64_ERRATUM_843419
is enabled, modules built with this toolchain fail to load:
module libahci: unsupported RELA relocation: 275
This patch fixes the problem by passing '-mpc-relative-literal-loads'
to the compiler.
Cc: sta...@vger.kernel.org
Fixes: df057cc7b4fa ("arm64: errata: add module build workaround for erratum
#843419")
BugLink: http://bugs.launchpad.net/bugs/1533009
Acked-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
Suggested-by: Christophe Lyon <christophe.l...@linaro.org>
Signed-off-by: Dann Frazier <dann.fraz...@canonical.com>
[will: backport to 4.4-stable]
Signed-off-by: Will Deacon <will.dea...@arm.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/arm64/Makefile | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -27,6 +27,7 @@ $(warning LSE atomics not supported by b
endif
KBUILD_CFLAGS += -mgeneral-regs-only $(lseinstr)
+KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads)
KBUILD_AFLAGS += $(lseinstr)
ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
