kernel-ark/arch/cris/Makefile
Sam Ravnborg 51b563fc93 arm, cris, mips, sparc, powerpc, um, xtensa: fix build with bash 4.0
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>
2009-09-20 12:28:22 +02:00

99 lines
2.4 KiB
Makefile

#
# cris/Makefile
#
# This file is included by the global makefile so that you can add your own
# architecture-specific flags and dependencies. Remember to do have actions
# for "archclean" and "archdep" for cleaning up and making dependencies for
# this architecture
#
# This file is subject to the terms and conditions of the GNU General Public
# License. See the file "COPYING" in the main directory of this archive
# for more details.
KBUILD_DEFCONFIG := etrax-100lx_v2_defconfig
arch-y := v10
arch-$(CONFIG_ETRAX_ARCH_V10) := v10
arch-$(CONFIG_ETRAX_ARCH_V32) := v32
# No config available for make clean etc
mach-y := fs
mach-$(CONFIG_CRIS_MACH_ARTPEC3) := a3
mach-$(CONFIG_ETRAXFS) := fs
ifneq ($(arch-y),)
SARCH := arch-$(arch-y)
inc := -Iarch/cris/include/$(SARCH)
inc += -Iarch/cris/include/$(SARCH)/arch
else
SARCH :=
inc :=
endif
ifneq ($(mach-y),)
MACH := mach-$(mach-y)
inc += -Iarch/cris/include/$(SARCH)/$(MACH)/
inc += -Iarch/cris/include/$(SARCH)/$(MACH)/mach
else
MACH :=
endif
LD = $(CROSS_COMPILE)ld -mcrislinux
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
KBUILD_AFLAGS += -mlinux -march=$(arch-y) $(inc)
KBUILD_CFLAGS += -mlinux -march=$(arch-y) -pipe $(inc)
KBUILD_CPPFLAGS += $(inc)
ifdef CONFIG_FRAME_POINTER
KBUILD_CFLAGS := $(subst -fomit-frame-pointer,,$(KBUILD_CFLAGS)) -g
KBUILD_CFLAGS += -fno-omit-frame-pointer
endif
head-y := arch/cris/$(SARCH)/kernel/head.o
LIBGCC = $(shell $(CC) $(KBUILD_CFLAGS) -print-file-name=libgcc.a)
core-y += arch/cris/kernel/ arch/cris/mm/
core-y += arch/cris/$(SARCH)/kernel/ arch/cris/$(SARCH)/mm/
ifdef CONFIG_ETRAX_ARCH_V32
core-y += arch/cris/$(SARCH)/$(MACH)/
endif
drivers-y += arch/cris/$(SARCH)/drivers/
libs-y += arch/cris/$(SARCH)/lib/ $(LIBGCC)
# cris source path
SRC_ARCH = $(srctree)/arch/cris
# cris object files path
OBJ_ARCH = $(objtree)/arch/cris
boot := arch/cris/boot
MACHINE := arch/cris/$(SARCH)
all: zImage
zImage Image: vmlinux
$(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $(boot)/$@
archprepare:
archclean:
$(Q)if [ -e arch/cris/boot ]; then \
$(MAKE) $(clean)=arch/cris/boot; \
fi
CLEAN_FILES += \
$(boot)/zImage \
$(boot)/compressed/decompress.bin \
$(boot)/compressed/piggy.gz \
$(boot)/rescue/rescue.bin
# MRPROPER_FILES +=
define archhelp
echo '* zImage - Compressed kernel image (arch/cris/boot/zImage)'
echo '* Image - Uncompressed kernel image (arch/cris/boot/Image)'
endef