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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 $(BITS) um - introduced a few new exported variables to deal with this xtensa - added options to CPP invocation [not build tested] Cc: Albin Tonnerre <albin.tonnerre@free-electrons.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Chris Zankel <chris@zankel.net> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
48 lines
1.4 KiB
Makefile
48 lines
1.4 KiB
Makefile
#
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# Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux,intel}.com)
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# Licensed under the GPL
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#
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CPPFLAGS_vmlinux.lds := -U$(SUBARCH) -DSTART=$(LDS_START) \
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-DELF_ARCH=$(LDS_ELF_ARCH) \
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-DELF_FORMAT=$(LDS_ELF_FORMAT)
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extra-y := vmlinux.lds
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clean-files :=
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obj-y = config.o exec.o exitcode.o init_task.o irq.o ksyms.o mem.o \
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physmem.o process.o ptrace.o reboot.o sigio.o \
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signal.o smp.o syscall.o sysrq.o time.o tlb.o trap.o uaccess.o \
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um_arch.o umid.o skas/
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obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
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obj-$(CONFIG_GPROF) += gprof_syms.o
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obj-$(CONFIG_GCOV) += gmon_syms.o
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USER_OBJS := config.o
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include arch/um/scripts/Makefile.rules
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targets := config.c config.tmp
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# Be careful with the below Sed code - sed is pitfall-rich!
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# We use sed to lower build requirements, for "embedded" builders for instance.
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$(obj)/config.tmp: $(objtree)/.config FORCE
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$(call if_changed,quote1)
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quiet_cmd_quote1 = QUOTE $@
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cmd_quote1 = sed -e 's/"/\\"/g' -e 's/^/"/' -e 's/$$/\\n",/' \
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$< > $@
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$(obj)/config.c: $(src)/config.c.in $(obj)/config.tmp FORCE
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$(call if_changed,quote2)
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quiet_cmd_quote2 = QUOTE $@
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cmd_quote2 = sed -e '/CONFIG/{' \
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-e 's/"CONFIG"//' \
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-e 'r $(obj)/config.tmp' \
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-e 'a \' \
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-e '""' \
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-e '}' \
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$< > $@
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