forked from luck/tmp_suning_uos_patched
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>
71 lines
2.0 KiB
Makefile
71 lines
2.0 KiB
Makefile
#
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# sparc/Makefile
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#
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# Makefile for the architecture dependent flags and dependencies on the
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# Sparc.
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#
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# Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
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#
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#
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# Uncomment the first KBUILD_CFLAGS if you are doing kgdb source level
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# debugging of the kernel to get the proper debugging information.
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AS := $(AS) -32
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LDFLAGS := -m elf32_sparc
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CHECKFLAGS += -D__sparc__
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#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7
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KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
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AFLAGS := $(AFLAGS) -m32
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#LDFLAGS_vmlinux = -N -Ttext 0xf0004000
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# Since 2.5.40, the first stage is left not btfix-ed.
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# Actual linking is done with "make image".
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LDFLAGS_vmlinux = -r
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head-y := arch/sparc/kernel/head.o arch/sparc/kernel/init_task.o
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HEAD_Y := $(head-y)
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core-y += arch/sparc/kernel/ arch/sparc/mm/ arch/sparc/math-emu/
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libs-y += arch/sparc/prom/ arch/sparc/lib/
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drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
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# Export what is needed by arch/sparc/boot/Makefile
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# Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-)
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INIT_Y := $(patsubst %/, %/built-in.o, $(init-y))
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CORE_Y := $(core-y)
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CORE_Y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
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CORE_Y := $(patsubst %/, %/built-in.o, $(CORE_Y))
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DRIVERS_Y := $(patsubst %/, %/built-in.o, $(drivers-y))
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NET_Y := $(patsubst %/, %/built-in.o, $(net-y))
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LIBS_Y1 := $(patsubst %/, %/lib.a, $(libs-y))
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LIBS_Y2 := $(patsubst %/, %/built-in.o, $(libs-y))
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LIBS_Y := $(LIBS_Y1) $(LIBS_Y2)
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ifdef CONFIG_KALLSYMS
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kallsyms.o := .tmp_kallsyms2.o
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endif
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export INIT_Y CORE_Y DRIVERS_Y NET_Y LIBS_Y HEAD_Y kallsyms.o
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# Default target
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all: image
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boot := arch/sparc/boot
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image tftpboot.img: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
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archclean:
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$(Q)$(MAKE) $(clean)=$(boot)
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CLEAN_FILES += arch/$(ARCH)/boot/System.map
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# Don't use tabs in echo arguments.
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define archhelp
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echo '* image - kernel image ($(boot)/image)'
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echo ' tftpboot.img - image prepared for tftp'
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endef
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