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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2022-05-09 07:36:06 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-05-19 23:11:28 +1000 |
| commit | 661aa880398add5c27943cb077c451a45cc112a1 (patch) | |
| tree | 238f2379d6ad82013e6a0a1eb4ea92e5fd27ba1e /arch | |
| parent | bbffdd2fc743bdc529f9a8264bdb5d3491f58c95 (diff) | |
| download | linux-661aa880398add5c27943cb077c451a45cc112a1.tar.bz2 | |
powerpc: Add CONFIG_PPC64_ELF_ABI_V1 and CONFIG_PPC64_ELF_ABI_V2
At the time being, we use CONFIG_CPU_LITTLE_ENDIAN and
CONFIG_CPU_BIG_ENDIAN to pass -mabi=elfv1 or elfv2 to
compiler, then define a PPC64_ELF_ABI_v1 or PPC64_ELF_ABI_v2
macro in asm/types.h based on _CALL_ELF define set by the compiler.
Make it more straight forward with a CONFIG option that
is directly usable.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1eca1addbc550167da9841c7340a010d0c4b2200.1652074503.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/Makefile | 10 | ||||
| -rw-r--r-- | arch/powerpc/boot/Makefile | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 6 |
3 files changed, 13 insertions, 5 deletions
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index eb541e730d3c..1ba98be84101 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -89,10 +89,10 @@ endif ifdef CONFIG_PPC64 ifndef CONFIG_CC_IS_CLANG -cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) -cflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mcall-aixdesc) -aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) -aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2 +cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(call cc-option,-mabi=elfv1) +cflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(call cc-option,-mcall-aixdesc) +aflags-$(CONFIG_PPC64_ELF_ABI_V1) += $(call cc-option,-mabi=elfv1) +aflags-$(CONFIG_PPC64_ELF_ABI_V2) += -mabi=elfv2 endif endif @@ -141,7 +141,7 @@ endif CFLAGS-$(CONFIG_PPC64) := $(call cc-option,-mtraceback=no) ifndef CONFIG_CC_IS_CLANG -ifdef CONFIG_CPU_LITTLE_ENDIAN +ifdef CONFIG_PPC64_ELF_ABI_V2 CFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2,$(call cc-option,-mcall-aixdesc)) AFLAGS-$(CONFIG_PPC64) += $(call cc-option,-mabi=elfv2) else diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 5b156f9f0e58..8baa928381ff 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -53,6 +53,8 @@ ifdef CONFIG_CPU_BIG_ENDIAN BOOTCFLAGS += -mbig-endian else BOOTCFLAGS += -mlittle-endian +endif +ifdef CONFIG_PPC64_ELF_ABI_V2 BOOTCFLAGS += $(call cc-option,-mabi=elfv2) endif diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 9d099dc75e8b..942606b2b193 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -552,6 +552,12 @@ config CPU_LITTLE_ENDIAN endchoice +config PPC64_ELF_ABI_V1 + def_bool PPC64 && CPU_BIG_ENDIAN + +config PPC64_ELF_ABI_V2 + def_bool PPC64 && CPU_LITTLE_ENDIAN + config PPC64_BOOT_WRAPPER def_bool n depends on CPU_LITTLE_ENDIAN |