From a0f97e06a43cf524e616f09e6af3398e1e9c1c5b Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Sun, 14 Oct 2007 22:21:35 +0200 Subject: kbuild: enable 'make CFLAGS=...' to add additional options to CC The variable CFLAGS 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 CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg --- arch/h8300/Makefile | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/h8300/Makefile') diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index 53b5c1edf59..330e05f28f9 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -30,16 +30,16 @@ ldflags-$(CONFIG_CPU_H8300H) := -mh8300helf cflags-$(CONFIG_CPU_H8S) := -ms ldflags-$(CONFIG_CPU_H8S) := -mh8300self -CFLAGS += $(cflags-y) -CFLAGS += -mint32 -fno-builtin -CFLAGS += -g -CFLAGS += -D__linux__ -CFLAGS += -DUTS_SYSNAME=\"uClinux\" +KBUILD_CFLAGS += $(cflags-y) +KBUILD_CFLAGS += -mint32 -fno-builtin +KBUILD_CFLAGS += -g +KBUILD_CFLAGS += -D__linux__ +KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y) LDFLAGS += $(ldflags-y) CROSS_COMPILE = h8300-elf- -LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(CFLAGS) -print-libgcc-file-name) +LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) head-y := arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/crt0_$(MODEL).o -- cgit v1.2.3 From 222d394d30e74bb7a2a65029fcea68107b0d0eb6 Mon Sep 17 00:00:00 2001 From: Sam Ravnborg Date: Mon, 15 Oct 2007 21:59:31 +0200 Subject: kbuild: enable 'make AFLAGS=...' to add additional options to AS The variable AFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of AFLAGS with KBUILD_AFLAGS all over the tree. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390 Signed-off-by: Sam Ravnborg --- arch/h8300/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/h8300/Makefile') diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index 330e05f28f9..a556447877b 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -35,7 +35,7 @@ KBUILD_CFLAGS += -mint32 -fno-builtin KBUILD_CFLAGS += -g KBUILD_CFLAGS += -D__linux__ KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\" -AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y) +KBUILD_AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y) LDFLAGS += $(ldflags-y) CROSS_COMPILE = h8300-elf- -- cgit v1.2.3