diff options
| author | Vasily Gorbik <gor@linux.ibm.com> | 2022-01-29 00:34:13 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2022-03-01 21:05:09 +0100 |
| commit | 42b01a553a56d9bc7c75b700fd274f1ec4a3763f (patch) | |
| tree | 271b1feda483bd44fcaa8ef6b3ae0ead79b5ab5d /arch/s390/Makefile | |
| parent | 9a4f03ad6d67b63e7d2a3fe16c30511f5fb80040 (diff) | |
s390: always use the packed stack layout
-mpacked-stack option has been supported by both minimum
gcc and clang versions for a while. With commit e2bc3e91d91e
("scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0
for s390") minimum clang version now also supports a combination
of flags -mpacked-stack -mbackchain -pg -mfentry and fulfills
all requirements to always enable the packed stack layout.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/Makefile')
| -rw-r--r-- | arch/s390/Makefile | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 609e3697324b..2edf25b44c4b 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -21,7 +21,7 @@ endif aflags_dwarf := -Wa,-gdwarf-2 KBUILD_AFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -D__ASSEMBLY__ KBUILD_AFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),$(aflags_dwarf)) -KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 +KBUILD_CFLAGS_DECOMPRESSOR := $(CLANG_FLAGS) -m64 -O2 -mpacked-stack KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float -mbackchain KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables @@ -68,11 +68,6 @@ cflags-y += -Wa,-I$(srctree)/arch/$(ARCH)/include # cflags-$(CONFIG_FRAME_POINTER) += -fno-optimize-sibling-calls -ifneq ($(call cc-option,-mpacked-stack -mbackchain -msoft-float),) -cflags-$(CONFIG_PACK_STACK) += -mpacked-stack -D__PACK_STACK -aflags-$(CONFIG_PACK_STACK) += -D__PACK_STACK -endif - KBUILD_AFLAGS_DECOMPRESSOR += $(aflags-y) KBUILD_CFLAGS_DECOMPRESSOR += $(cflags-y) @@ -111,7 +106,7 @@ endif # Test CFI features of binutils cfi := $(call as-instr,.cfi_startproc\n.cfi_val_offset 15$(comma)-160\n.cfi_endproc,-DCONFIG_AS_CFI_VAL_OFFSET=1) -KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) +KBUILD_CFLAGS += -mpacked-stack -mbackchain -msoft-float $(cflags-y) KBUILD_CFLAGS += -pipe -Wno-sign-compare KBUILD_CFLAGS += -fno-asynchronous-unwind-tables $(cfi) KBUILD_AFLAGS += $(aflags-y) $(cfi) |