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| author | Max Filippov <jcmvbkbc@gmail.com> | 2021-04-23 00:34:44 -0700 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2022-03-09 14:16:35 -0800 |
| commit | c20e1117d9aa22c558646a1060ddd1dd042fb107 (patch) | |
| tree | 8df7aa15f8dadbd0a512387994f8eca95588c3fd /arch/xtensa/Makefile | |
| parent | 19c5699f9affbd6824f4db0e19fcdc9d609a5e6b (diff) | |
xtensa: add kernel ABI selection to Kconfig
Add choice to use default or call0 ABI for the kernel code. If call0 ABI
is chosen add '-mabi=call0' to the flags. The toolchain support for this
option is rather new so only enable it when the compiler supports it.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa/Makefile')
| -rw-r--r-- | arch/xtensa/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 725cd4cd8b30..5097caa7bf0c 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -35,6 +35,10 @@ KBUILD_CFLAGS += -ffreestanding -D__linux__ KBUILD_CFLAGS += -pipe -mlongcalls -mtext-section-literals KBUILD_CFLAGS += $(call cc-option,-mforce-no-pic,) KBUILD_CFLAGS += $(call cc-option,-mno-serialize-volatile,) +ifneq ($(CONFIG_KERNEL_ABI_CALL0),) +KBUILD_CFLAGS += -mabi=call0 +KBUILD_AFLAGS += -mabi=call0 +endif KBUILD_AFLAGS += -mlongcalls -mtext-section-literals |