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Commit 222d394d authored by Sam Ravnborg's avatar Sam Ravnborg
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kbuild: enable 'make AFLAGS=...' to add additional options to AS 

The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.

This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.

Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent 714055ed
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Showing with 48 additions and 47 deletions
Documentation/kbuild/makefiles.txt
View file @ 222d394d
...@@ -424,6 +424,7 @@ more details, with real examples. ...@@ -424,6 +424,7 @@ more details, with real examples.
as-instr checks if the assembler reports a specific instruction as-instr checks if the assembler reports a specific instruction
and then outputs either option1 or option2 and then outputs either option1 or option2
C escapes are supported in the test instruction C escapes are supported in the test instruction
Note: as-instr-option uses KBUILD_AFLAGS for $(AS) options
cc-option cc-option
cc-option is used to check if $(CC) supports a given option, and not cc-option is used to check if $(CC) supports a given option, and not
...@@ -819,14 +820,14 @@ When kbuild executes, the following steps are followed (roughly): ...@@ -819,14 +820,14 @@ When kbuild executes, the following steps are followed (roughly):
In this example, the binary $(obj)/image is a binary version of In this example, the binary $(obj)/image is a binary version of
vmlinux. The usage of $(call if_changed,xxx) will be described later. vmlinux. The usage of $(call if_changed,xxx) will be described later.
AFLAGS $(AS) assembler flags KBUILD_AFLAGS $(AS) assembler flags
Default value - see top level Makefile Default value - see top level Makefile
Append or modify as required per architecture. Append or modify as required per architecture.
Example: Example:
#arch/sparc64/Makefile #arch/sparc64/Makefile
AFLAGS += -m64 -mcpu=ultrasparc KBUILD_AFLAGS += -m64 -mcpu=ultrasparc
KBUILD_CFLAGS $(CC) compiler flags KBUILD_CFLAGS $(CC) compiler flags
......
Makefile
View file @ 222d394d
...@@ -323,7 +323,7 @@ CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) ...@@ -323,7 +323,7 @@ CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \ -fno-strict-aliasing -fno-common \
-Werror-implicit-function-declaration -Werror-implicit-function-declaration
AFLAGS := -D__ASSEMBLY__ KBUILD_AFLAGS := -D__ASSEMBLY__
# Read KERNELRELEASE from include/config/kernel.release (if it exists) # Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
...@@ -336,7 +336,7 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS ...@@ -336,7 +336,7 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
# When compiling out-of-tree modules, put MODVERDIR in the module # When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might # tree rather than in the kernel tree. The kernel tree might
...@@ -507,7 +507,7 @@ endif ...@@ -507,7 +507,7 @@ endif
ifdef CONFIG_DEBUG_INFO ifdef CONFIG_DEBUG_INFO
KBUILD_CFLAGS += -g KBUILD_CFLAGS += -g
AFLAGS += -gdwarf-2 KBUILD_AFLAGS += -gdwarf-2
endif endif
# Force gcc to behave correct even for buggy distributions # Force gcc to behave correct even for buggy distributions
...@@ -1502,7 +1502,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)) ...@@ -1502,7 +1502,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))
cmd_rmfiles = rm -f $(rm-files) cmd_rmfiles = rm -f $(rm-files)
a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \ a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
$(NOSTDINC_FLAGS) $(CPPFLAGS) \ $(NOSTDINC_FLAGS) $(CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
......
arch/arm/Makefile
View file @ 222d394d
...@@ -86,7 +86,7 @@ endif ...@@ -86,7 +86,7 @@ endif
# Need -Uarm for gcc < 3.x # Need -Uarm for gcc < 3.x
KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm KBUILD_CFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float KBUILD_AFLAGS +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
CHECKFLAGS += -D__arm__ CHECKFLAGS += -D__arm__
......
arch/arm/vfp/Makefile
View file @ 222d394d
...@@ -7,7 +7,7 @@ ...@@ -7,7 +7,7 @@
# EXTRA_CFLAGS := -DDEBUG # EXTRA_CFLAGS := -DDEBUG
# EXTRA_AFLAGS := -DDEBUG # EXTRA_AFLAGS := -DDEBUG
AFLAGS :=$(AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp) KBUILD_AFLAGS :=$(KBUILD_AFLAGS:-msoft-float=-Wa,-mfpu=softvfp+vfp)
LDFLAGS +=--no-warn-mismatch LDFLAGS +=--no-warn-mismatch
obj-y += vfp.o obj-y += vfp.o
......
arch/avr32/Makefile
View file @ 222d394d
...@@ -12,14 +12,14 @@ all: uImage vmlinux.elf ...@@ -12,14 +12,14 @@ all: uImage vmlinux.elf
KBUILD_DEFCONFIG := atstk1002_defconfig KBUILD_DEFCONFIG := atstk1002_defconfig
KBUILD_CFLAGS += -pipe -fno-builtin -mno-pic KBUILD_CFLAGS += -pipe -fno-builtin -mno-pic
AFLAGS += -mrelax -mno-pic KBUILD_AFLAGS += -mrelax -mno-pic
CFLAGS_MODULE += -mno-relax CFLAGS_MODULE += -mno-relax
LDFLAGS_vmlinux += --relax LDFLAGS_vmlinux += --relax
cpuflags-$(CONFIG_CPU_AT32AP7000) += -mcpu=ap7000 cpuflags-$(CONFIG_CPU_AT32AP7000) += -mcpu=ap7000
KBUILD_CFLAGS += $(cpuflags-y) KBUILD_CFLAGS += $(cpuflags-y)
AFLAGS += $(cpuflags-y) KBUILD_AFLAGS += $(cpuflags-y)
CHECKFLAGS += -D__avr32__ -D__BIG_ENDIAN CHECKFLAGS += -D__avr32__ -D__BIG_ENDIAN
......
arch/blackfin/Makefile
View file @ 222d394d
...@@ -54,7 +54,7 @@ rev-$(CONFIG_BF_REV_NONE) := none ...@@ -54,7 +54,7 @@ rev-$(CONFIG_BF_REV_NONE) := none
rev-$(CONFIG_BF_REV_ANY) := any rev-$(CONFIG_BF_REV_ANY) := any
KBUILD_CFLAGS += -mcpu=$(cpu-y)-$(rev-y) KBUILD_CFLAGS += -mcpu=$(cpu-y)-$(rev-y)
AFLAGS += -mcpu=$(cpu-y)-$(rev-y) KBUILD_AFLAGS += -mcpu=$(cpu-y)-$(rev-y)
head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o head-y := arch/$(ARCH)/mach-$(MACHINE)/head.o arch/$(ARCH)/kernel/init_task.o
......
arch/cris/Makefile
View file @ 222d394d
...@@ -29,7 +29,7 @@ LD = $(CROSS_COMPILE)ld -mcrislinux ...@@ -29,7 +29,7 @@ LD = $(CROSS_COMPILE)ld -mcrislinux
OBJCOPYFLAGS := -O binary -R .note -R .comment -S OBJCOPYFLAGS := -O binary -R .note -R .comment -S
CPPFLAGS_vmlinux.lds = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE) CPPFLAGS_vmlinux.lds = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)
AFLAGS += -mlinux KBUILD_AFLAGS += -mlinux
KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe
......
arch/frv/Makefile
View file @ 222d394d
...@@ -63,16 +63,16 @@ endif ...@@ -63,16 +63,16 @@ endif
ifdef CONFIG_CPU_FR451_COMPILE ifdef CONFIG_CPU_FR451_COMPILE
KBUILD_CFLAGS += -mcpu=fr450 KBUILD_CFLAGS += -mcpu=fr450
AFLAGS += -mcpu=fr450 KBUILD_AFLAGS += -mcpu=fr450
ASFLAGS += -mcpu=fr450 ASFLAGS += -mcpu=fr450
else else
ifdef CONFIG_CPU_FR551_COMPILE ifdef CONFIG_CPU_FR551_COMPILE
KBUILD_CFLAGS += -mcpu=fr550 KBUILD_CFLAGS += -mcpu=fr550
AFLAGS += -mcpu=fr550 KBUILD_AFLAGS += -mcpu=fr550
ASFLAGS += -mcpu=fr550 ASFLAGS += -mcpu=fr550
else else
KBUILD_CFLAGS += -mcpu=fr400 KBUILD_CFLAGS += -mcpu=fr400
AFLAGS += -mcpu=fr400 KBUILD_AFLAGS += -mcpu=fr400
ASFLAGS += -mcpu=fr400 ASFLAGS += -mcpu=fr400
endif endif
endif endif
...@@ -82,14 +82,14 @@ endif ...@@ -82,14 +82,14 @@ endif
# - all the extra registers are dealt with only at context switch time # - all the extra registers are dealt with only at context switch time
KBUILD_CFLAGS += -mno-fdpic -mgpr-32 -msoft-float -mno-media KBUILD_CFLAGS += -mno-fdpic -mgpr-32 -msoft-float -mno-media
KBUILD_CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2 KBUILD_CFLAGS += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
AFLAGS += -mno-fdpic KBUILD_AFLAGS += -mno-fdpic
ASFLAGS += -mno-fdpic ASFLAGS += -mno-fdpic
# make sure the .S files get compiled with debug info # make sure the .S files get compiled with debug info
# and disable optimisations that are unhelpful whilst debugging # and disable optimisations that are unhelpful whilst debugging
ifdef CONFIG_DEBUG_INFO ifdef CONFIG_DEBUG_INFO
#KBUILD_CFLAGS += -O1 #KBUILD_CFLAGS += -O1
AFLAGS += -Wa,--gdwarf2 KBUILD_AFLAGS += -Wa,--gdwarf2
ASFLAGS += -Wa,--gdwarf2 ASFLAGS += -Wa,--gdwarf2
endif endif
......
arch/h8300/Makefile
View file @ 222d394d
...@@ -35,7 +35,7 @@ KBUILD_CFLAGS += -mint32 -fno-builtin ...@@ -35,7 +35,7 @@ KBUILD_CFLAGS += -mint32 -fno-builtin
KBUILD_CFLAGS += -g KBUILD_CFLAGS += -g
KBUILD_CFLAGS += -D__linux__ KBUILD_CFLAGS += -D__linux__
KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y) KBUILD_AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
LDFLAGS += $(ldflags-y) LDFLAGS += $(ldflags-y)
CROSS_COMPILE = h8300-elf- CROSS_COMPILE = h8300-elf-
......
arch/i386/Makefile
View file @ 222d394d
...@@ -55,11 +55,11 @@ KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call c ...@@ -55,11 +55,11 @@ KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call c
# do binutils support CFI? # do binutils support CFI?
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset esp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
# is .cfi_signal_frame supported too? # is .cfi_signal_frame supported too?
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(cflags-y)
...@@ -117,7 +117,7 @@ drivers-$(CONFIG_PM) += arch/x86/power/ ...@@ -117,7 +117,7 @@ drivers-$(CONFIG_PM) += arch/x86/power/
drivers-$(CONFIG_FB) += arch/x86/video/ drivers-$(CONFIG_FB) += arch/x86/video/
KBUILD_CFLAGS += $(mflags-y) KBUILD_CFLAGS += $(mflags-y)
AFLAGS += $(mflags-y) KBUILD_AFLAGS += $(mflags-y)
boot := arch/x86/boot boot := arch/x86/boot
......
arch/m32r/Makefile
View file @ 222d394d
...@@ -25,7 +25,7 @@ cflags-$(CONFIG_ISA_M32R) += -DNO_FPU ...@@ -25,7 +25,7 @@ cflags-$(CONFIG_ISA_M32R) += -DNO_FPU
aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -O2 -Wa,-no-bitinst aflags-$(CONFIG_ISA_M32R) += -DNO_FPU -O2 -Wa,-no-bitinst
KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(cflags-y)
AFLAGS += $(aflags-y) KBUILD_AFLAGS += $(aflags-y)
CHECKFLAGS += -D__m32r__ -D__BIG_ENDIAN__=1 CHECKFLAGS += -D__m32r__ -D__BIG_ENDIAN__=1
......
arch/m68knommu/Makefile
View file @ 222d394d
...@@ -102,7 +102,7 @@ cflags-$(CONFIG_M68EZ328) := -m68000 ...@@ -102,7 +102,7 @@ cflags-$(CONFIG_M68EZ328) := -m68000
cflags-$(CONFIG_M68VZ328) := -m68000 cflags-$(CONFIG_M68VZ328) := -m68000
cflags-$(CONFIG_M68360) := -m68332 cflags-$(CONFIG_M68360) := -m68332
AFLAGS += $(cflags-y) KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(cflags-y)
KBUILD_CFLAGS += -D__linux__ KBUILD_CFLAGS += -D__linux__
......
arch/mips/Makefile
View file @ 222d394d
...@@ -608,7 +608,7 @@ ifdef CONFIG_64BIT ...@@ -608,7 +608,7 @@ ifdef CONFIG_64BIT
endif endif
endif endif
AFLAGS += $(cflags-y) KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y) \ KBUILD_CFLAGS += $(cflags-y) \
-D"VMLINUX_LOAD_ADDRESS=$(load-y)" -D"VMLINUX_LOAD_ADDRESS=$(load-y)"
......
arch/powerpc/Makefile
View file @ 222d394d
...@@ -76,7 +76,7 @@ AFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) ...@@ -76,7 +76,7 @@ AFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH)
CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none -mcall-aixdesc
CFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -ffixed-r2 -mmultiple CFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -ffixed-r2 -mmultiple
CPPFLAGS += $(CPPFLAGS-y) CPPFLAGS += $(CPPFLAGS-y)
AFLAGS += $(AFLAGS-y) KBUILD_AFLAGS += $(AFLAGS-y)
KBUILD_CFLAGS += -msoft-float -pipe $(CFLAGS-y) KBUILD_CFLAGS += -msoft-float -pipe $(CFLAGS-y)
CPP = $(CC) -E $(KBUILD_CFLAGS) CPP = $(CC) -E $(KBUILD_CFLAGS)
...@@ -125,7 +125,7 @@ cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec ...@@ -125,7 +125,7 @@ cpu-as-$(CONFIG_POWER4) += -Wa,-maltivec
cpu-as-$(CONFIG_E500) += -Wa,-me500 cpu-as-$(CONFIG_E500) += -Wa,-me500
cpu-as-$(CONFIG_E200) += -Wa,-me200 cpu-as-$(CONFIG_E200) += -Wa,-me200
AFLAGS += $(cpu-as-y) KBUILD_AFLAGS += $(cpu-as-y)
KBUILD_CFLAGS += $(cpu-as-y) KBUILD_CFLAGS += $(cpu-as-y)
head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o head-y := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o
......
arch/ppc/Makefile
View file @ 222d394d
...@@ -23,7 +23,7 @@ endif ...@@ -23,7 +23,7 @@ endif
LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic
# The -Iarch/$(ARCH)/include is temporary while we are merging # The -Iarch/$(ARCH)/include is temporary while we are merging
CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include CPPFLAGS += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
AFLAGS += -Iarch/$(ARCH) KBUILD_AFLAGS += -Iarch/$(ARCH)
KBUILD_CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \ KBUILD_CFLAGS += -Iarch/$(ARCH) -msoft-float -pipe \
-ffixed-r2 -mmultiple -ffixed-r2 -mmultiple
...@@ -45,7 +45,7 @@ cpu-as-$(CONFIG_6xx) += -Wa,-maltivec ...@@ -45,7 +45,7 @@ cpu-as-$(CONFIG_6xx) += -Wa,-maltivec
cpu-as-$(CONFIG_E500) += -Wa,-me500 cpu-as-$(CONFIG_E500) += -Wa,-me500
cpu-as-$(CONFIG_E200) += -Wa,-me200 cpu-as-$(CONFIG_E200) += -Wa,-me200
AFLAGS += $(cpu-as-y) KBUILD_AFLAGS += $(cpu-as-y)
KBUILD_CFLAGS += $(cpu-as-y) KBUILD_CFLAGS += $(cpu-as-y)
# Default to the common case. # Default to the common case.
......
arch/s390/Makefile
View file @ 222d394d
...@@ -16,7 +16,7 @@ ...@@ -16,7 +16,7 @@
ifndef CONFIG_64BIT ifndef CONFIG_64BIT
LDFLAGS := -m elf_s390 LDFLAGS := -m elf_s390
KBUILD_CFLAGS += -m31 KBUILD_CFLAGS += -m31
AFLAGS += -m31 KBUILD_AFLAGS += -m31
UTS_MACHINE := s390 UTS_MACHINE := s390
STACK_SIZE := 8192 STACK_SIZE := 8192
CHECKFLAGS += -D__s390__ -msize-long CHECKFLAGS += -D__s390__ -msize-long
...@@ -24,7 +24,7 @@ else ...@@ -24,7 +24,7 @@ else
LDFLAGS := -m elf64_s390 LDFLAGS := -m elf64_s390
MODFLAGS += -fpic -D__PIC__ MODFLAGS += -fpic -D__PIC__
KBUILD_CFLAGS += -m64 KBUILD_CFLAGS += -m64
AFLAGS += -m64 KBUILD_AFLAGS += -m64
UTS_MACHINE := s390x UTS_MACHINE := s390x
STACK_SIZE := 16384 STACK_SIZE := 16384
CHECKFLAGS += -D__s390__ -D__s390x__ CHECKFLAGS += -D__s390__ -D__s390x__
...@@ -79,7 +79,7 @@ endif ...@@ -79,7 +79,7 @@ endif
KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y) KBUILD_CFLAGS += -mbackchain -msoft-float $(cflags-y)
KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare KBUILD_CFLAGS += -pipe -fno-strength-reduce -Wno-sign-compare
AFLAGS += $(aflags-y) KBUILD_AFLAGS += $(aflags-y)
OBJCOPYFLAGS := -O binary OBJCOPYFLAGS := -O binary
LDFLAGS_vmlinux := -e start LDFLAGS_vmlinux := -e start
......
arch/sh/Makefile
View file @ 222d394d
...@@ -92,7 +92,7 @@ LDFLAGS += -EB ...@@ -92,7 +92,7 @@ LDFLAGS += -EB
endif endif
KBUILD_CFLAGS += -pipe $(cflags-y) KBUILD_CFLAGS += -pipe $(cflags-y)
AFLAGS += $(cflags-y) KBUILD_AFLAGS += $(cflags-y)
head-y := arch/sh/kernel/head.o arch/sh/kernel/init_task.o head-y := arch/sh/kernel/head.o arch/sh/kernel/init_task.o
......
arch/sparc/Makefile
View file @ 222d394d
...@@ -17,7 +17,7 @@ CHECKFLAGS += -D__sparc__ ...@@ -17,7 +17,7 @@ CHECKFLAGS += -D__sparc__
#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7 #KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
AFLAGS := $(AFLAGS) -m32 KBUILD_AFLAGS += -m32
#LDFLAGS_vmlinux = -N -Ttext 0xf0004000 #LDFLAGS_vmlinux = -N -Ttext 0xf0004000
# Since 2.5.40, the first stage is left not btfix-ed. # Since 2.5.40, the first stage is left not btfix-ed.
......
arch/sparc64/Makefile
View file @ 222d394d
...@@ -45,7 +45,7 @@ else ...@@ -45,7 +45,7 @@ else
KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \ KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
-ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \ -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
$(CC_UNDECL) $(CC_UNDECL)
AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL) KBUILD_AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
endif endif
ifeq ($(CONFIG_MCOUNT),y) ifeq ($(CONFIG_MCOUNT),y)
......
arch/um/Makefile
View file @ 222d394d
...@@ -62,7 +62,7 @@ KBUILD_CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \ ...@@ -62,7 +62,7 @@ KBUILD_CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\" \
$(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \
-Din6addr_loopback=kernel_in6addr_loopback -Din6addr_loopback=kernel_in6addr_loopback
AFLAGS += $(ARCH_INCLUDE) KBUILD_AFLAGS += $(ARCH_INCLUDE)
USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\ USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
$(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \ $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \
......
arch/um/Makefile-i386
View file @ 222d394d
...@@ -16,7 +16,7 @@ OBJCOPYFLAGS := -O binary -R .note -R .comment -S ...@@ -16,7 +16,7 @@ OBJCOPYFLAGS := -O binary -R .note -R .comment -S
ifeq ("$(origin SUBARCH)", "command line") ifeq ("$(origin SUBARCH)", "command line")
ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)") ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
KBUILD_CFLAGS += $(call cc-option,-m32) KBUILD_CFLAGS += $(call cc-option,-m32)
AFLAGS += $(call cc-option,-m32) KBUILD_AFLAGS += $(call cc-option,-m32)
LINK-y += $(call cc-option,-m32) LINK-y += $(call cc-option,-m32)
UML_OBJCOPYFLAGS += -F $(ELF_FORMAT) UML_OBJCOPYFLAGS += -F $(ELF_FORMAT)
......
arch/um/Makefile-x86_64
View file @ 222d394d
...@@ -12,7 +12,7 @@ ARCH_KERNEL_DEFINES = -U__$(SUBARCH)__ ...@@ -12,7 +12,7 @@ ARCH_KERNEL_DEFINES = -U__$(SUBARCH)__
KBUILD_CFLAGS += $(_extra_flags_) KBUILD_CFLAGS += $(_extra_flags_)
CHECKFLAGS += -m64 CHECKFLAGS += -m64
AFLAGS += -m64 KBUILD_AFLAGS += -m64
LDFLAGS += -m elf_x86_64 LDFLAGS += -m elf_x86_64
CPPFLAGS += -m64 CPPFLAGS += -m64
......
arch/um/sys-ppc/Makefile
View file @ 222d394d
OBJ = built-in.o OBJ = built-in.o
.S.o: .S.o:
$(CC) $(AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o $(CC) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
OBJS = ptrace.o sigcontext.o semaphore.o checksum.o miscthings.o misc.o \ OBJS = ptrace.o sigcontext.o semaphore.o checksum.o miscthings.o misc.o \
ptrace_user.o sysrq.o ptrace_user.o sysrq.o
...@@ -57,13 +57,13 @@ ppc_defs.h: mk_defs.c ppc_defs.head \ ...@@ -57,13 +57,13 @@ ppc_defs.h: mk_defs.c ppc_defs.head \
checksum.o: checksum.S checksum.o: checksum.S
rm -f asm rm -f asm
ln -s $(TOPDIR)/include/asm-ppc asm ln -s $(TOPDIR)/include/asm-ppc asm
$(CC) $(EXTRA_AFLAGS) $(AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o $(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
rm -f asm rm -f asm
misc.o: misc.S ppc_defs.h misc.o: misc.S ppc_defs.h
rm -f asm rm -f asm
ln -s $(TOPDIR)/include/asm-ppc asm ln -s $(TOPDIR)/include/asm-ppc asm
$(CC) $(EXTRA_AFLAGS) $(AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o $(CC) $(EXTRA_AFLAGS) $(KBUILD_AFLAGS) -D__ASSEMBLY__ -D__UM_PPC__ -c $< -o $*.o
rm -f asm rm -f asm
clean-files := $(OBJS) ppc_defs.h checksum.S semaphore.c mk_defs.c clean-files := $(OBJS) ppc_defs.h checksum.S semaphore.c mk_defs.c
arch/x86/boot/Makefile
View file @ 222d394d
...@@ -61,7 +61,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ ...@@ -61,7 +61,7 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
$(call cc-option, -fno-unit-at-a-time)) \ $(call cc-option, -fno-unit-at-a-time)) \
$(call cc-option, -fno-stack-protector) \ $(call cc-option, -fno-stack-protector) \
$(call cc-option, -mpreferred-stack-boundary=2) $(call cc-option, -mpreferred-stack-boundary=2)
AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
$(obj)/zImage: IMAGE_OFFSET := 0x1000 $(obj)/zImage: IMAGE_OFFSET := 0x1000
$(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) $(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK)
......
arch/x86/boot/compressed/Makefile_64
View file @ 222d394d
...@@ -10,7 +10,7 @@ KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2 \ ...@@ -10,7 +10,7 @@ KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2 \
-fno-strict-aliasing -fPIC -mcmodel=small \ -fno-strict-aliasing -fPIC -mcmodel=small \
$(call cc-option, -ffreestanding) \ $(call cc-option, -ffreestanding) \
$(call cc-option, -fno-stack-protector) $(call cc-option, -fno-stack-protector)
AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
LDFLAGS := -m elf_x86_64 LDFLAGS := -m elf_x86_64
LDFLAGS_vmlinux := -T LDFLAGS_vmlinux := -T
......
arch/x86_64/Makefile
View file @ 222d394d
...@@ -61,18 +61,18 @@ cflags-y += -maccumulate-outgoing-args ...@@ -61,18 +61,18 @@ cflags-y += -maccumulate-outgoing-args
# do binutils support CFI? # do binutils support CFI?
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) cflags-y += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,) KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_rel_offset rsp${comma}0\n.cfi_endproc,-DCONFIG_AS_CFI=1,)
# is .cfi_signal_frame supported too? # is .cfi_signal_frame supported too?
cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) cflags-y += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,) KBUILD_AFLAGS += $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1,)
cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector ) cflags-$(CONFIG_CC_STACKPROTECTOR) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector )
cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all ) cflags-$(CONFIG_CC_STACKPROTECTOR_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all )
KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(cflags-y)
CFLAGS_KERNEL += $(cflags-kernel-y) CFLAGS_KERNEL += $(cflags-kernel-y)
AFLAGS += -m64 KBUILD_AFLAGS += -m64
head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task_64.o head-y := arch/x86/kernel/head_64.o arch/x86/kernel/head64.o arch/x86/kernel/init_task_64.o
......
scripts/Kbuild.include
View file @ 222d394d
...@@ -81,7 +81,7 @@ as-option = $(call try-run,\ ...@@ -81,7 +81,7 @@ as-option = $(call try-run,\
# Usage: cflags-y += $(call as-instr,instr,option1,option2) # Usage: cflags-y += $(call as-instr,instr,option1,option2)
as-instr = $(call try-run,\ as-instr = $(call try-run,\
echo -e "$(1)" | $(CC) $(AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3)) echo -e "$(1)" | $(CC) $(KBUILD_AFLAGS) -c -xassembler -o "$$TMP" -,$(2),$(3))
# cc-option # cc-option
# Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586) # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)
......
scripts/Makefile.lib
View file @ 222d394d
...@@ -85,7 +85,7 @@ modname_flags = $(if $(filter 1,$(words $(modname))),\ ...@@ -85,7 +85,7 @@ modname_flags = $(if $(filter 1,$(words $(modname))),\
-D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))") -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
_c_flags = $(KBUILD_CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o) _c_flags = $(KBUILD_CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$(basetarget).o)
_a_flags = $(AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) _a_flags = $(KBUILD_AFLAGS) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
_cpp_flags = $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F)) _cpp_flags = $(CPPFLAGS) $(EXTRA_CPPFLAGS) $(CPPFLAGS_$(@F))
# If building the kernel in a separate objtree expand all occurrences # If building the kernel in a separate objtree expand all occurrences
......
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