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s390: cleanup arch/s390/kernel Makefile

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Group all compiler flag modification lines together and sort them
alphabetically. This should hopefully prevent future bugs due to
missing flag modifications.
Also fix indentation at some places.

Reviewed-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Heiko Carstens 2016-12-07 10:38:36 +01:00 committed by Martin Schwidefsky
parent d543a106f9
commit 82897ede92
1 changed files with 36 additions and 30 deletions
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66
arch/s390/kernel/Makefile
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@ -2,20 +2,47 @@
# Makefile for the linux kernel.
#
KCOV_INSTRUMENT_early.o := n
KCOV_INSTRUMENT_sclp.o := n
KCOV_INSTRUMENT_als.o := n
ifdef CONFIG_FUNCTION_TRACER
# Don't trace early setup code and tracing code
CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
# Do not trace tracer code
CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
# Do not trace early setup code
CFLAGS_REMOVE_als.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_sclp.o = $(CC_FLAGS_FTRACE)
endif
GCOV_PROFILE_als.o := n
GCOV_PROFILE_early.o := n
GCOV_PROFILE_sclp.o := n
KCOV_INSTRUMENT_als.o := n
KCOV_INSTRUMENT_early.o := n
KCOV_INSTRUMENT_sclp.o := n
UBSAN_SANITIZE_als.o := n
UBSAN_SANITIZE_early.o := n
UBSAN_SANITIZE_sclp.o := n
#
# Use -march=z900 for sclp.c and als.c to be able to print an error
# message if the kernel is started on a machine which is too old
#
ifneq ($(CC_FLAGS_MARCH),-march=z900)
CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
CFLAGS_als.o += -march=z900
CFLAGS_REMOVE_sclp.o += $(CC_FLAGS_MARCH)
CFLAGS_sclp.o += -march=z900
AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
AFLAGS_head.o += -march=z900
endif
#
# Passing null pointers is ok for smp code, since we access the lowcore here.
#
CFLAGS_smp.o := -Wno-nonnull
CFLAGS_smp.o := -Wno-nonnull
#
# Disable tailcall optimizations for stack / callchain walking functions
@ -30,28 +57,7 @@ CFLAGS_dumpstack.o += -fno-optimize-sibling-calls
#
CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"'
CFLAGS_sysinfo.o += -w
#
# Use -march=z900 for sclp.c and als.c to be able to print an error
# message if the kernel is started on a machine which is too old
#
CFLAGS_REMOVE_sclp.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_als.o = $(CC_FLAGS_FTRACE)
ifneq ($(CC_FLAGS_MARCH),-march=z900)
CFLAGS_REMOVE_sclp.o += $(CC_FLAGS_MARCH)
CFLAGS_sclp.o += -march=z900
CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH)
CFLAGS_als.o += -march=z900
AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH)
AFLAGS_head.o += -march=z900
endif
GCOV_PROFILE_early.o := n
GCOV_PROFILE_sclp.o := n
GCOV_PROFILE_als.o := n
UBSAN_SANITIZE_als.o := n
UBSAN_SANITIZE_early.o := n
UBSAN_SANITIZE_sclp.o := n
CFLAGS_sysinfo.o += -w
obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o