kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line
It is now possible to assign options to AS, CC and LD
on the command line - which is only used when building modules.
{A,C,LD}FLAGS_MODULE was all used both in the top-level Makefile
in the arch makefiles, thus users had no way to specify
additional options to AS, CC, LD when building modules
without overriding the original value.
Introduce a new set of variables KBUILD_{A,C,LD}FLAGS_MODULE
that is used by arch specific files and free up
{A,C,LD}FLAGS_MODULE so they can be assigned on
the command line.
All arch Makefiles that used the old variables has been updated.
Note: Previously we had a MODFLAGS variable for both
AS and CC. But in favour of consistency this was dropped.
So in some cases arch Makefile has one assignmnet replaced by
two assignmnets.
Note2: MODFLAGS was not documented and is dropped
without any notice. I do not expect much/any breakage
from this.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Denys Vlasenko <vda.linux@googlemail.com>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin]
Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> [avr32]
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
index ead8a75..22fb665 100644
--- a/arch/avr32/Makefile
+++ b/arch/avr32/Makefile
@@ -13,7 +13,7 @@
KBUILD_CFLAGS += -pipe -fno-builtin -mno-pic
KBUILD_AFLAGS += -mrelax -mno-pic
-CFLAGS_MODULE += -mno-relax
+KBUILD_CFLAGS_MODULE += -mno-relax
LDFLAGS_vmlinux += --relax
cpuflags-$(CONFIG_PLATFORM_AT32AP) += -march=ap
diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile
index d4c7177..f7ef923 100644
--- a/arch/blackfin/Makefile
+++ b/arch/blackfin/Makefile
@@ -15,8 +15,8 @@
KBUILD_CFLAGS += $(call cc-option,-mno-fdpic)
KBUILD_AFLAGS += $(call cc-option,-mno-fdpic)
-CFLAGS_MODULE += -mlong-calls
-LDFLAGS_MODULE += -m elf32bfin
+KBUILD_CFLAGS_MODULE += -mlong-calls
+KBUILD_LDFLAGS_MODULE += -m elf32bfin
KALLSYMS += --symbol-prefix=_
KBUILD_DEFCONFIG := BF537-STAMP_defconfig
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 475e272..5ab6af3 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -22,7 +22,7 @@
OBJCOPYFLAGS := --strip-all
LDFLAGS_vmlinux := -static
-LDFLAGS_MODULE += -T $(srctree)/arch/ia64/module.lds
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/ia64/module.lds
AFLAGS_KERNEL := -mconstant-gp
EXTRA :=
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index 469766b..14a3c23 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -13,7 +13,7 @@
KBUILD_CFLAGS += -pipe -fno-schedule-insns
CFLAGS_KERNEL += -mmodel=medium
-CFLAGS_MODULE += -mmodel=large
+KBUILD_CFLAGS_MODULE += -mmodel=large
ifdef CONFIG_CHIP_VDEC2
cflags-$(CONFIG_ISA_M32R2) += -DNO_FPU -Wa,-bitinst
diff --git a/arch/m68k/Makefile b/arch/m68k/Makefile
index 570d85c..b06a7e3 100644
--- a/arch/m68k/Makefile
+++ b/arch/m68k/Makefile
@@ -18,7 +18,7 @@
# override top level makefile
AS += -m68020
LDFLAGS := -m m68kelf
-LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
+KBUILD_LDFLAGS_MODULE += -T $(srctree)/arch/m68k/kernel/module.lds
ifneq ($(SUBARCH),$(ARCH))
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := $(call cc-cross-prefix, \
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 1893efd..a77dcf3 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -93,7 +93,8 @@
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
cflags-y += -msoft-float
LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
-MODFLAGS += -mlong-calls
+KBUILD_AFLAGS_MODULE += -mlong-calls
+KBUILD_CFLAGS_MODULE += -mlong-calls
cflags-y += -ffreestanding
@@ -172,7 +173,8 @@
ifdef CONFIG_CPU_SB1
ifdef CONFIG_SB1_PASS_1_WORKAROUNDS
-MODFLAGS += -msb1-pass1-workarounds
+KBUILD_AFLAGS_MODULE += -msb1-pass1-workarounds
+KBUILD_CFLAGS_MODULE += -msb1-pass1-workarounds
endif
endif
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 42dcd3f4..b68a838 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -93,7 +93,7 @@
KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
endif
else
-LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+KBUILD_LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
endif
ifeq ($(CONFIG_TUNE_CELL),y)
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index fc8fb20..83ef872 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -22,7 +22,8 @@
CHECKFLAGS += -D__s390__ -msize-long
else
LDFLAGS := -m elf64_s390
-MODFLAGS += -fpic -D__PIC__
+KBUILD_AFLAGS_MODULE += -fpic -D__PIC__
+KBUILD_CFLAGS_MODULE += -fpic -D__PIC__
KBUILD_CFLAGS += -m64
KBUILD_AFLAGS += -m64
UTS_MACHINE := s390x
diff --git a/arch/score/Makefile b/arch/score/Makefile
index 68e0cd0..d77dc63 100644
--- a/arch/score/Makefile
+++ b/arch/score/Makefile
@@ -20,7 +20,8 @@
#
KBUILD_AFLAGS += $(cflags-y)
KBUILD_CFLAGS += $(cflags-y)
-MODFLAGS += -mlong-calls
+KBUILD_AFLAGS_MODULE += -mlong-calls
+KBUILD_CFLAGS_MODULE += -mlong-calls
LDFLAGS += --oformat elf32-littlescore
LDFLAGS_vmlinux += -G0 -static -nostdlib