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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>
59 lines
1.4 KiB
Makefile
59 lines
1.4 KiB
Makefile
#
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# Makefile for alpha-specific library files..
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#
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EXTRA_AFLAGS := $(KBUILD_CFLAGS)
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EXTRA_CFLAGS := -Werror
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# Many of these routines have implementations tuned for ev6.
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# Choose them iff we're targeting ev6 specifically.
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ev6-$(CONFIG_ALPHA_EV6) := ev6-
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# Several make use of the cttz instruction introduced in ev67.
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ev67-$(CONFIG_ALPHA_EV67) := ev67-
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lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
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udelay.o \
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$(ev6-y)memset.o \
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$(ev6-y)memcpy.o \
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memmove.o \
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checksum.o \
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csum_partial_copy.o \
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$(ev67-y)strlen.o \
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$(ev67-y)strcat.o \
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strcpy.o \
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$(ev67-y)strncat.o \
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strncpy.o \
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$(ev6-y)stxcpy.o \
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$(ev6-y)stxncpy.o \
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$(ev67-y)strchr.o \
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$(ev67-y)strrchr.o \
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$(ev6-y)memchr.o \
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$(ev6-y)copy_user.o \
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$(ev6-y)clear_user.o \
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$(ev6-y)strncpy_from_user.o \
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$(ev67-y)strlen_user.o \
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$(ev6-y)csum_ipv6_magic.o \
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$(ev6-y)clear_page.o \
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$(ev6-y)copy_page.o \
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fpreg.o \
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callback_srm.o srm_puts.o srm_printk.o \
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fls.o
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lib-$(CONFIG_SMP) += dec_and_lock.o
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# The division routines are built from single source, with different defines.
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AFLAGS___divqu.o = -DDIV
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AFLAGS___remqu.o = -DREM
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AFLAGS___divlu.o = -DDIV -DINTSIZE
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AFLAGS___remlu.o = -DREM -DINTSIZE
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$(obj)/__divqu.o: $(obj)/$(ev6-y)divide.S
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$(cmd_as_o_S)
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$(obj)/__remqu.o: $(obj)/$(ev6-y)divide.S
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$(cmd_as_o_S)
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$(obj)/__divlu.o: $(obj)/$(ev6-y)divide.S
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$(cmd_as_o_S)
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$(obj)/__remlu.o: $(obj)/$(ev6-y)divide.S
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$(cmd_as_o_S)
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