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/arch/s390/Makefile b/arch/s390/Makefile
index 62a0da4..f708be3 100644
--- 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 @@
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 @@
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