diff options
| author | dann frazier <dann.frazier@canonical.com> | 2016-01-25 16:52:16 -0700 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-04-18 08:51:10 -0400 |
| commit | 9cd462227bd3eae177704b9f1d8e160cec511d15 (patch) | |
| tree | 0ee2a46adea559a8c8c94182df13d04d8c4094fa /arch | |
| parent | da2041b6c4bf60904a7732eec0b20c89f54d9693 (diff) | |
arm64: errata: Add -mpc-relative-literal-loads to build flags
[ Upstream commit 67dfa1751ce71e629aad7c438e1678ad41054677 ]
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: stable@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.biesheuvel@linaro.org>
Suggested-by: Christophe Lyon <christophe.lyon@linaro.org>
Signed-off-by: Dann Frazier <dann.frazier@canonical.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 3258174e6152..f462e6e4ce07 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -18,6 +18,8 @@ GZFLAGS :=-9 KBUILD_DEFCONFIG := defconfig KBUILD_CFLAGS += -mgeneral-regs-only +KBUILD_CFLAGS += $(call cc-option, -mpc-relative-literal-loads) + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian AS += -EB |