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a0f97e06a4
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 <sam@ravnborg.org>
72 lines
1.9 KiB
Makefile
72 lines
1.9 KiB
Makefile
#
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# arch/h8300/Makefile
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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# (C) Copyright 2002,2003 Yoshinori Sato <ysato@users.sourceforge.jp>
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#
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platform-$(CONFIG_CPU_H8300H) := h8300h
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platform-$(CONFIG_CPU_H8S) := h8s
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PLATFORM := $(platform-y)
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board-$(CONFIG_H8300H_GENERIC) := generic
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board-$(CONFIG_H8300H_AKI3068NET) := aki3068net
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board-$(CONFIG_H8300H_H8MAX) := h8max
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board-$(CONFIG_H8300H_SIM) := generic
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board-$(CONFIG_H8S_GENERIC) := generic
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board-$(CONFIG_H8S_EDOSK2674) := edosk2674
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board-$(CONFIG_H8S_SIM) := generic
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BOARD := $(board-y)
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model-$(CONFIG_RAMKERNEL) := ram
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model-$(CONFIG_ROMKERNEL) := rom
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MODEL := $(model-y)
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cflags-$(CONFIG_CPU_H8300H) := -mh
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ldflags-$(CONFIG_CPU_H8300H) := -mh8300helf
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cflags-$(CONFIG_CPU_H8S) := -ms
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ldflags-$(CONFIG_CPU_H8S) := -mh8300self
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KBUILD_CFLAGS += $(cflags-y)
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KBUILD_CFLAGS += -mint32 -fno-builtin
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KBUILD_CFLAGS += -g
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KBUILD_CFLAGS += -D__linux__
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KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
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AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
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LDFLAGS += $(ldflags-y)
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CROSS_COMPILE = h8300-elf-
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LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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head-y := arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/crt0_$(MODEL).o
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core-y += arch/$(ARCH)/kernel/ \
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arch/$(ARCH)/mm/
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ifdef PLATFORM
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core-y += arch/$(ARCH)/platform/$(PLATFORM)/ \
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arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/
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endif
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libs-y += arch/$(ARCH)/lib/ $(LIBGCC)
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boot := arch/h8300/boot
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export MODEL PLATFORM BOARD
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archmrproper:
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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vmlinux.srec vmlinux.bin zImage: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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define archhelp
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@echo 'vmlinux.bin - Create raw binary'
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@echo 'vmlinux.srec - Create srec binary'
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@echo 'zImage - Compressed kernel image'
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endef
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