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51b563fc93
Albin Tonnerre <albin.tonnerre@free-electrons.com> reported:
Bash 4 filters out variables which contain a dot in them.
This happends to be the case of CPPFLAGS_vmlinux.lds.
This is rather unfortunate, as it now causes
build failures when using SHELL=/bin/bash to compile,
or when bash happens to be used by make (eg when it's /bin/sh)
Remove the common definition of CPPFLAGS_vmlinux.lds by
pushing relevant stuff to either Makefile.build or the
arch specific kernel/Makefile where we build the linker script.
This is also nice cleanup as we move the information out where
it is used.
Notes for the different architectures touched:
arm - we use an already exported symbol
cris - we use a config symbol aleady available
[Not build tested]
mips - the jiffies complexity has moved to vmlinux.lds.S where we need it.
Added a few variables to CPPFLAGS - they are only used by
the linker script.
[Not build tested]
powerpc - removed assignment that is not needed
[not build tested]
sparc - simplified it using $(BITS)
um - introduced a few new exported variables to deal with this
xtensa - added options to CPP invocation
[not build tested]
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
98 lines
2.4 KiB
Makefile
98 lines
2.4 KiB
Makefile
#
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# cris/Makefile
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#
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# This file is included by the global makefile so that you can add your own
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# architecture-specific flags and dependencies. Remember to do have actions
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# for "archclean" and "archdep" for cleaning up and making dependencies for
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# this architecture
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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KBUILD_DEFCONFIG := etrax-100lx_v2_defconfig
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arch-y := v10
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arch-$(CONFIG_ETRAX_ARCH_V10) := v10
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arch-$(CONFIG_ETRAX_ARCH_V32) := v32
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# No config available for make clean etc
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mach-y := fs
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mach-$(CONFIG_CRIS_MACH_ARTPEC3) := a3
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mach-$(CONFIG_ETRAXFS) := fs
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ifneq ($(arch-y),)
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SARCH := arch-$(arch-y)
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inc := -Iarch/cris/include/$(SARCH)
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inc += -Iarch/cris/include/$(SARCH)/arch
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else
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SARCH :=
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inc :=
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endif
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ifneq ($(mach-y),)
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MACH := mach-$(mach-y)
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inc += -Iarch/cris/include/$(SARCH)/$(MACH)/
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inc += -Iarch/cris/include/$(SARCH)/$(MACH)/mach
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else
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MACH :=
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endif
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LD = $(CROSS_COMPILE)ld -mcrislinux
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OBJCOPYFLAGS := -O binary -R .note -R .comment -S
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KBUILD_AFLAGS += -mlinux -march=$(arch-y) $(inc)
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KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe $(inc)
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KBUILD_CPPFLAGS += $(inc)
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ifdef CONFIG_FRAME_POINTER
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KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
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KBUILD_CFLAGS += -fno-omit-frame-pointer
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endif
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head-y := arch/cris/$(SARCH)/kernel/head.o
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LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
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core-y += arch/cris/kernel/ arch/cris/mm/
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core-y += arch/cris/$(SARCH)/kernel/ arch/cris/$(SARCH)/mm/
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ifdef CONFIG_ETRAX_ARCH_V32
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core-y += arch/cris/$(SARCH)/$(MACH)/
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endif
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drivers-y += arch/cris/$(SARCH)/drivers/
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libs-y += arch/cris/$(SARCH)/lib/ $(LIBGCC)
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# cris source path
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SRC_ARCH = $(srctree)/arch/cris
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# cris object files path
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OBJ_ARCH = $(objtree)/arch/cris
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boot := arch/cris/boot
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MACHINE := arch/cris/$(SARCH)
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all: zImage
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zImage Image: vmlinux
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$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
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archprepare:
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archclean:
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$(Q)if [ -e arch/cris/boot ]; then \
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$(MAKE) $(clean)=arch/cris/boot; \
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fi
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CLEAN_FILES += \
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$(boot)/zImage \
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$(boot)/compressed/decompress.bin \
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$(boot)/compressed/piggy.gz \
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$(boot)/rescue/rescue.bin
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# MRPROPER_FILES +=
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define archhelp
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echo '* zImage - Compressed kernel image (arch/cris/boot/zImage)'
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echo '* Image - Uncompressed kernel image (arch/cris/boot/Image)'
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endef
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