diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-06-10 05:30:17 -0300 |
commit | d635711daa98be86d4c7fd01499c34f566b54ccb (patch) | |
tree | aa5cc3760a27c3d57146498cb82fa549547de06c /arch/arm64/lib/Makefile | |
parent | c91265cd0efb83778f015b4d4b1129bd2cfd075e (diff) |
Linux-libre 4.6.2-gnu
Diffstat (limited to 'arch/arm64/lib/Makefile')
-rw-r--r-- | arch/arm64/lib/Makefile | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile index 1a811ecf7..c86b7909e 100644 --- a/arch/arm64/lib/Makefile +++ b/arch/arm64/lib/Makefile @@ -4,15 +4,16 @@ lib-y := bitops.o clear_user.o delay.o copy_from_user.o \ memcmp.o strcmp.o strncmp.o strlen.o strnlen.o \ strchr.o strrchr.o -# Tell the compiler to treat all general purpose registers as -# callee-saved, which allows for efficient runtime patching of the bl -# instruction in the caller with an atomic instruction when supported by -# the CPU. Result and argument registers are handled correctly, based on -# the function prototype. +# Tell the compiler to treat all general purpose registers (with the +# exception of the IP registers, which are already handled by the caller +# in case of a PLT) as callee-saved, which allows for efficient runtime +# patching of the bl instruction in the caller with an atomic instruction +# when supported by the CPU. Result and argument registers are handled +# correctly, based on the function prototype. lib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o CFLAGS_atomic_ll_sc.o := -fcall-used-x0 -ffixed-x1 -ffixed-x2 \ -ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 \ -ffixed-x7 -fcall-saved-x8 -fcall-saved-x9 \ -fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12 \ -fcall-saved-x13 -fcall-saved-x14 -fcall-saved-x15 \ - -fcall-saved-x16 -fcall-saved-x17 -fcall-saved-x18 + -fcall-saved-x18 |