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: Sam Ravnborg <sam@ravnborg.org>

diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 1ca535b..f4779cd 100644 (file)
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -424,6 +424,7 @@ more details, with real examples.
        as-instr checks if the assembler reports a specific instruction
        and then outputs either option1 or option2
        C escapes are supported in the test instruction
+       Note: as-instr-option uses KBUILD_AFLAGS for $(AS) options
 
     cc-option
        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):
        In this example, the binary $(obj)/image is a binary version of
        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
        Append or modify as required per architecture.
 
        Example:
                #arch/sparc64/Makefile
-               AFLAGS += -m64 -mcpu=ultrasparc
+               KBUILD_AFLAGS += -m64 -mcpu=ultrasparc
 
     KBUILD_CFLAGS              $(CC) compiler flags
 

diff --git a/Makefile b/Makefile
index 3bc86c6..8d3f664 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -323,7 +323,7 @@ CPPFLAGS        := -D__KERNEL__ $(LINUXINCLUDE)
 KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                   -fno-strict-aliasing -fno-common \
                   -Werror-implicit-function-declaration
-AFLAGS          := -D__ASSEMBLY__
+KBUILD_AFLAGS   := -D__ASSEMBLY__
 
 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
@@ -336,7 +336,7 @@ export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
 export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
 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
 # tree rather than in the kernel tree. The kernel tree might
@@ -507,7 +507,7 @@ endif
 
 ifdef CONFIG_DEBUG_INFO
 KBUILD_CFLAGS  += -g
-AFLAGS         += -gdwarf-2
+KBUILD_AFLAGS  += -gdwarf-2
 endif
 
 # Force gcc to behave correct even for buggy distributions
@@ -1502,7 +1502,7 @@ quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(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) \
          $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
 

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 0b82865..b762d23 100644 (file)
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -86,7 +86,7 @@ endif
 
 # 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
-AFLAGS         +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
+KBUILD_AFLAGS  +=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
 
 CHECKFLAGS     += -D__arm__
 

diff --git a/arch/arm/vfp/Makefile b/arch/arm/vfp/Makefile
index 7e136e7..39f6d8e 100644 (file)
--- a/arch/arm/vfp/Makefile
+++ b/arch/arm/vfp/Makefile
@@ -7,7 +7,7 @@
 # EXTRA_CFLAGS := -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
 
 obj-y                  += vfp.o

diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index 9883c8b..8791864 100644 (file)
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -12,14 +12,14 @@ all: uImage vmlinux.elf
 KBUILD_DEFCONFIG       := atstk1002_defconfig
 
 KBUILD_CFLAGS  += -pipe -fno-builtin -mno-pic
-AFLAGS         += -mrelax -mno-pic
+KBUILD_AFLAGS  += -mrelax -mno-pic
 CFLAGS_MODULE  += -mno-relax
 LDFLAGS_vmlinux        += --relax
 
 cpuflags-$(CONFIG_CPU_AT32AP7000)      += -mcpu=ap7000
 
 KBUILD_CFLAGS  += $(cpuflags-y)
-AFLAGS         += $(cpuflags-y)
+KBUILD_AFLAGS  += $(cpuflags-y)
 
 CHECKFLAGS     += -D__avr32__ -D__BIG_ENDIAN
 

diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index 52a6ac0..3689337 100644 (file)
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -54,7 +54,7 @@ rev-$(CONFIG_BF_REV_NONE) := none
 rev-$(CONFIG_BF_REV_ANY)  := any
 
 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
 

diff --git a/arch/cris/Makefile b/arch/cris/Makefile
index 32ef6f3..e6bf00c 100644 (file)
--- a/arch/cris/Makefile
+++ b/arch/cris/Makefile
@@ -29,7 +29,7 @@ LD = $(CROSS_COMPILE)ld -mcrislinux
 OBJCOPYFLAGS := -O binary -R .note -R .comment -S
 
 CPPFLAGS_vmlinux.lds = -DDRAM_VIRTUAL_BASE=0x$(CONFIG_ETRAX_DRAM_VIRTUAL_BASE)
-AFLAGS += -mlinux
+KBUILD_AFLAGS += -mlinux
 
 KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe
 

diff --git a/arch/frv/Makefile b/arch/frv/Makefile
index ec89886..310c47a 100644 (file)
--- a/arch/frv/Makefile
+++ b/arch/frv/Makefile
@@ -63,16 +63,16 @@ endif
 
 ifdef CONFIG_CPU_FR451_COMPILE
 KBUILD_CFLAGS  += -mcpu=fr450
-AFLAGS         += -mcpu=fr450
+KBUILD_AFLAGS  += -mcpu=fr450
 ASFLAGS                += -mcpu=fr450
 else
 ifdef CONFIG_CPU_FR551_COMPILE
 KBUILD_CFLAGS  += -mcpu=fr550
-AFLAGS         += -mcpu=fr550
+KBUILD_AFLAGS  += -mcpu=fr550
 ASFLAGS                += -mcpu=fr550
 else
 KBUILD_CFLAGS  += -mcpu=fr400
-AFLAGS         += -mcpu=fr400
+KBUILD_AFLAGS  += -mcpu=fr400
 ASFLAGS                += -mcpu=fr400
 endif
 endif
@@ -82,14 +82,14 @@ endif
 # - all the extra registers are dealt with only at context switch time
 KBUILD_CFLAGS  += -mno-fdpic -mgpr-32 -msoft-float -mno-media
 KBUILD_CFLAGS  += -ffixed-fcc3 -ffixed-cc3 -ffixed-gr15 -ffixed-icc2
-AFLAGS         += -mno-fdpic
+KBUILD_AFLAGS  += -mno-fdpic
 ASFLAGS                += -mno-fdpic
 
 # make sure the .S files get compiled with debug info
 # and disable optimisations that are unhelpful whilst debugging
 ifdef CONFIG_DEBUG_INFO
 #KBUILD_CFLAGS += -O1
-AFLAGS         += -Wa,--gdwarf2
+KBUILD_AFLAGS  += -Wa,--gdwarf2
 ASFLAGS                += -Wa,--gdwarf2
 endif
 

diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
index 330e05f..a556447 100644 (file)
--- a/arch/h8300/Makefile
+++ b/arch/h8300/Makefile
@@ -35,7 +35,7 @@ KBUILD_CFLAGS += -mint32 -fno-builtin
 KBUILD_CFLAGS += -g
 KBUILD_CFLAGS += -D__linux__
 KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
-AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
+KBUILD_AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
 LDFLAGS += $(ldflags-y)
 
 CROSS_COMPILE = h8300-elf-

diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index fc3c8e8..f036d2d 100644 (file)
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -55,11 +55,11 @@ KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then echo $(call c
 
 # 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,)
-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?
 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)
 
@@ -117,7 +117,7 @@ drivers-$(CONFIG_PM)                        += arch/x86/power/
 drivers-$(CONFIG_FB)                    += arch/x86/video/
 
 KBUILD_CFLAGS += $(mflags-y)
-AFLAGS += $(mflags-y)
+KBUILD_AFLAGS += $(mflags-y)
 
 boot := arch/x86/boot
 

diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index c80618a..4072a07 100644 (file)
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -25,7 +25,7 @@ cflags-$(CONFIG_ISA_M32R)     += -DNO_FPU
 aflags-$(CONFIG_ISA_M32R)      += -DNO_FPU -O2 -Wa,-no-bitinst
 
 KBUILD_CFLAGS += $(cflags-y)
-AFLAGS += $(aflags-y)
+KBUILD_AFLAGS += $(aflags-y)
 
 CHECKFLAGS     += -D__m32r__ -D__BIG_ENDIAN__=1
 

diff --git a/arch/m68knommu/Makefile b/arch/m68knommu/Makefile
index 1c1fbb6..92227aa 100644 (file)
--- a/arch/m68knommu/Makefile
+++ b/arch/m68knommu/Makefile
@@ -102,7 +102,7 @@ cflags-$(CONFIG_M68EZ328)   := -m68000
 cflags-$(CONFIG_M68VZ328)      := -m68000
 cflags-$(CONFIG_M68360)                := -m68332
 
-AFLAGS += $(cflags-y)
+KBUILD_AFLAGS += $(cflags-y)
 
 KBUILD_CFLAGS += $(cflags-y)
 KBUILD_CFLAGS += -D__linux__

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 64512ab..6b663be 100644 (file)
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -608,7 +608,7 @@ ifdef CONFIG_64BIT
   endif
 endif
 
-AFLAGS         += $(cflags-y)
+KBUILD_AFLAGS  += $(cflags-y)
 KBUILD_CFLAGS  += $(cflags-y) \
                        -D"VMLINUX_LOAD_ADDRESS=$(load-y)"
 

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 5130984..462bb89 100644 (file)
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -76,7 +76,7 @@ AFLAGS-$(CONFIG_PPC32)        := -Iarch/$(ARCH)
 CFLAGS-$(CONFIG_PPC64) := -mminimal-toc -mtraceback=none  -mcall-aixdesc
 CFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -ffixed-r2 -mmultiple
 CPPFLAGS       += $(CPPFLAGS-y)
-AFLAGS         += $(AFLAGS-y)
+KBUILD_AFLAGS  += $(AFLAGS-y)
 KBUILD_CFLAGS  += -msoft-float -pipe $(CFLAGS-y)
 CPP            = $(CC) -E $(KBUILD_CFLAGS)
 
@@ -125,7 +125,7 @@ cpu-as-$(CONFIG_POWER4)             += -Wa,-maltivec
 cpu-as-$(CONFIG_E500)          += -Wa,-me500
 cpu-as-$(CONFIG_E200)          += -Wa,-me200
 
-AFLAGS += $(cpu-as-y)
+KBUILD_AFLAGS += $(cpu-as-y)
 KBUILD_CFLAGS += $(cpu-as-y)
 
 head-y                         := arch/powerpc/kernel/head_$(CONFIG_WORD_SIZE).o

diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile
index 43802e9..dd63ccb 100644 (file)
--- a/arch/ppc/Makefile
+++ b/arch/ppc/Makefile
@@ -23,7 +23,7 @@ endif
 LDFLAGS_vmlinux        := -Ttext $(KERNELLOAD) -Bstatic
 # The -Iarch/$(ARCH)/include is temporary while we are merging
 CPPFLAGS       += -Iarch/$(ARCH) -Iarch/$(ARCH)/include
-AFLAGS         += -Iarch/$(ARCH)
+KBUILD_AFLAGS  += -Iarch/$(ARCH)
 KBUILD_CFLAGS  += -Iarch/$(ARCH) -msoft-float -pipe \
                -ffixed-r2 -mmultiple
 
@@ -45,7 +45,7 @@ cpu-as-$(CONFIG_6xx)          += -Wa,-maltivec
 cpu-as-$(CONFIG_E500)          += -Wa,-me500
 cpu-as-$(CONFIG_E200)          += -Wa,-me200
 
-AFLAGS += $(cpu-as-y)
+KBUILD_AFLAGS += $(cpu-as-y)
 KBUILD_CFLAGS += $(cpu-as-y)
 
 # Default to the common case.

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 62a0da4..f708be3 100644 (file)
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -16,7 +16,7 @@
 ifndef CONFIG_64BIT
 LDFLAGS                := -m elf_s390
 KBUILD_CFLAGS  += -m31
-AFLAGS         += -m31
+KBUILD_AFLAGS  += -m31
 UTS_MACHINE    := s390
 STACK_SIZE     := 8192
 CHECKFLAGS     += -D__s390__ -msize-long
@@ -24,7 +24,7 @@ else
 LDFLAGS                := -m elf64_s390
 MODFLAGS       += -fpic -D__PIC__
 KBUILD_CFLAGS  += -m64
-AFLAGS         += -m64
+KBUILD_AFLAGS  += -m64
 UTS_MACHINE    := s390x
 STACK_SIZE     := 16384
 CHECKFLAGS     += -D__s390__ -D__s390x__
@@ -79,7 +79,7 @@ endif
 
 KBUILD_CFLAGS  += -mbackchain -msoft-float $(cflags-y)
 KBUILD_CFLAGS  += -pipe -fno-strength-reduce -Wno-sign-compare
-AFLAGS         += $(aflags-y)
+KBUILD_AFLAGS  += $(aflags-y)
 
 OBJCOPYFLAGS   := -O binary
 LDFLAGS_vmlinux := -e start

diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index cd8a411..0353296 100644 (file)
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -92,7 +92,7 @@ LDFLAGS                       += -EB
 endif
 
 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
 

diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 2ce781a..fef28e2 100644 (file)
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -17,7 +17,7 @@ CHECKFLAGS    += -D__sparc__
 
 #KBUILD_CFLAGS += -g -pipe -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
 #  Since 2.5.40, the first stage is left not btfix-ed.

diff --git a/arch/sparc64/Makefile b/arch/sparc64/Makefile
index b083dc4..6c92a42 100644 (file)
--- a/arch/sparc64/Makefile
+++ b/arch/sparc64/Makefile
@@ -45,7 +45,7 @@ else
   KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \
            -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \
            $(CC_UNDECL)
-  AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
+  KBUILD_AFLAGS += -m64 -mcpu=ultrasparc $(CC_UNDECL)
 endif
 
 ifeq ($(CONFIG_MCOUNT),y)

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 18123bf..d08d3bc 100644 (file)
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -62,7 +62,7 @@ KBUILD_CFLAGS += $(CFLAGS-y) -D__arch_um__ -DSUBARCH=\"$(SUBARCH)\"   \
        $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap      \
        -Din6addr_loopback=kernel_in6addr_loopback
 
-AFLAGS += $(ARCH_INCLUDE)
+KBUILD_AFLAGS += $(ARCH_INCLUDE)
 
 USER_CFLAGS = $(patsubst $(KERNEL_DEFINES),,$(patsubst -D__KERNEL__,,\
        $(patsubst -I%,,$(KBUILD_CFLAGS)))) $(ARCH_INCLUDE) $(MODE_INCLUDE) \

diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 26bc786..d10e4dc 100644 (file)
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -16,7 +16,7 @@ OBJCOPYFLAGS                  := -O binary -R .note -R .comment -S
 ifeq ("$(origin SUBARCH)", "command line")
 ifneq ("$(shell uname -m | sed -e s/i.86/i386/)", "$(SUBARCH)")
 KBUILD_CFLAGS          += $(call cc-option,-m32)
-AFLAGS                 += $(call cc-option,-m32)
+KBUILD_AFLAGS          += $(call cc-option,-m32)
 LINK-y                 += $(call cc-option,-m32)
 UML_OBJCOPYFLAGS       += -F $(ELF_FORMAT)
 

diff --git a/arch/um/Makefile-x86_64 b/arch/um/Makefile-x86_64
index 36d2bb5..8836f0d 100644 (file)
--- a/arch/um/Makefile-x86_64
+++ b/arch/um/Makefile-x86_64
@@ -12,7 +12,7 @@ ARCH_KERNEL_DEFINES = -U__$(SUBARCH)__
 KBUILD_CFLAGS += $(_extra_flags_)
 
 CHECKFLAGS  += -m64
-AFLAGS += -m64
+KBUILD_AFLAGS += -m64
 LDFLAGS += -m elf_x86_64
 CPPFLAGS += -m64
 

diff --git a/arch/um/sys-ppc/Makefile b/arch/um/sys-ppc/Makefile
index af20026..a9814a7 100644 (file)
--- a/arch/um/sys-ppc/Makefile
+++ b/arch/um/sys-ppc/Makefile
@@ -1,7 +1,7 @@
 OBJ = built-in.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 \
        ptrace_user.o sysrq.o
@@ -57,13 +57,13 @@ ppc_defs.h: mk_defs.c ppc_defs.head \
 checksum.o: checksum.S
        rm -f 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
 
 misc.o: misc.S ppc_defs.h
        rm -f 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
 
 clean-files := $(OBJS) ppc_defs.h checksum.S semaphore.c mk_defs.c

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 646292a..d6ed8e5 100644 (file)
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -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-stack-protector) \
                   $(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:  EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK)

diff --git a/arch/x86/boot/compressed/Makefile_64 b/arch/x86/boot/compressed/Makefile_64
index 3013ad0..7801e8d 100644 (file)
--- a/arch/x86/boot/compressed/Makefile_64
+++ b/arch/x86/boot/compressed/Makefile_64
@@ -10,7 +10,7 @@ KBUILD_CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2  \
          -fno-strict-aliasing -fPIC -mcmodel=small \
           $(call cc-option, -ffreestanding) \
           $(call cc-option, -fno-stack-protector)
-AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 LDFLAGS := -m elf_x86_64
 
 LDFLAGS_vmlinux := -T

diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index 3fc3300..9daa32d 100644 (file)
--- a/arch/x86_64/Makefile
+++ b/arch/x86_64/Makefile
@@ -61,18 +61,18 @@ cflags-y += -maccumulate-outgoing-args
 
 # 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,)
-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?
 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_ALL) += $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-x86_64-has-stack-protector.sh "$(CC)" -fstack-protector-all )
 
 KBUILD_CFLAGS += $(cflags-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
 

diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index b1a7c7d..de7bb28 100644 (file)
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -81,7 +81,7 @@ as-option = $(call try-run,\
 # Usage: cflags-y += $(call as-instr,instr,option1,option2)
 
 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
 # Usage: cflags-y += $(call cc-option,-march=winchip-c6,-march=i586)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 51ae412..2837ada 100644 (file)
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -85,7 +85,7 @@ modname_flags  = $(if $(filter 1,$(words $(modname))),\
                  -D"KBUILD_MODNAME=KBUILD_STR($(call name-fix,$(modname)))")
 
 _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))
 
 # If building the kernel in a separate objtree expand all occurrences