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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 $(BITS)
um - introduced a few new exported variables to deal with this
xtensa - added options to CPP invocation
[not build tested]
Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Chris Zankel <chris@zankel.net>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
56 lines
1.6 KiB
Makefile
56 lines
1.6 KiB
Makefile
#
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# Makefile for the linux kernel.
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#
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CPPFLAGS_vmlinux.lds := -DTEXT_OFFSET=$(TEXT_OFFSET)
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AFLAGS_head.o := -DTEXT_OFFSET=$(TEXT_OFFSET)
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ifdef CONFIG_DYNAMIC_FTRACE
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CFLAGS_REMOVE_ftrace.o = -pg
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endif
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CFLAGS_REMOVE_return_address.o = -pg
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# Object file lists.
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obj-y := compat.o elf.o entry-armv.o entry-common.o irq.o \
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process.o ptrace.o return_address.o setup.o signal.o \
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sys_arm.o stacktrace.o time.o traps.o
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obj-$(CONFIG_ISA_DMA_API) += dma.o
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obj-$(CONFIG_ARCH_ACORN) += ecard.o
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obj-$(CONFIG_FIQ) += fiq.o
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obj-$(CONFIG_MODULES) += armksyms.o module.o
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obj-$(CONFIG_ARTHUR) += arthur.o
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obj-$(CONFIG_ISA_DMA) += dma-isa.o
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obj-$(CONFIG_PCI) += bios32.o isa.o
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obj-$(CONFIG_SMP) += smp.o
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obj-$(CONFIG_HAVE_ARM_SCU) += smp_scu.o
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obj-$(CONFIG_HAVE_ARM_TWD) += smp_twd.o
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obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
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obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o
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obj-$(CONFIG_KPROBES) += kprobes.o kprobes-decode.o
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obj-$(CONFIG_ATAGS_PROC) += atags.o
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obj-$(CONFIG_OABI_COMPAT) += sys_oabi-compat.o
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obj-$(CONFIG_ARM_THUMBEE) += thumbee.o
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obj-$(CONFIG_KGDB) += kgdb.o
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obj-$(CONFIG_ARM_UNWIND) += unwind.o
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obj-$(CONFIG_CRUNCH) += crunch.o crunch-bits.o
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AFLAGS_crunch-bits.o := -Wa,-mcpu=ep9312
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obj-$(CONFIG_CPU_XSCALE) += xscale-cp0.o
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obj-$(CONFIG_CPU_XSC3) += xscale-cp0.o
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obj-$(CONFIG_CPU_MOHAWK) += xscale-cp0.o
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obj-$(CONFIG_IWMMXT) += iwmmxt.o
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AFLAGS_iwmmxt.o := -Wa,-mcpu=iwmmxt
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ifneq ($(CONFIG_ARCH_EBSA110),y)
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obj-y += io.o
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endif
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head-y := head$(MMUEXT).o
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obj-$(CONFIG_DEBUG_LL) += debug.o
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extra-y := $(head-y) init_task.o vmlinux.lds
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