forked from Minki/linux
d4d016caa4
We already had the implementation for __udiv_qrnnd (unsigned divide for multi-precision arithmetic) as part of the alpha math emulation code. But you can disable the math emulation code - even if you shouldn't - and then the MPI code that actually wants this functionality (and is needed by various crypto functions) will fail to build. So move the extended-precision divide code to be a regular library function, just like all the regular division code is. That way ie is available regardless of math-emulation. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
62 lines
1.6 KiB
Makefile
62 lines
1.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for alpha-specific library files..
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#
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asflags-y := $(KBUILD_CFLAGS)
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ccflags-y := -Werror
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# Many of these routines have implementations tuned for ev6.
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# Choose them iff we're targeting ev6 specifically.
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ev6-$(CONFIG_ALPHA_EV6) := ev6-
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# Several make use of the cttz instruction introduced in ev67.
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ev67-$(CONFIG_ALPHA_EV67) := ev67-
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lib-y = __divqu.o __remqu.o __divlu.o __remlu.o \
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udiv-qrnnd.o \
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udelay.o \
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$(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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stycpy.o \
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styncpy.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)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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# 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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$(addprefix $(obj)/,__divqu.o __remqu.o __divlu.o __remlu.o): \
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$(src)/$(ev6-y)divide.S FORCE
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$(call if_changed_rule,as_o_S)
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# There are direct branches between {str*cpy,str*cat} and stx*cpy.
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# Ensure the branches are within range by merging these objects.
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LDFLAGS_stycpy.o := -r
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LDFLAGS_styncpy.o := -r
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$(obj)/stycpy.o: $(obj)/strcpy.o $(obj)/$(ev67-y)strcat.o \
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$(obj)/$(ev6-y)stxcpy.o FORCE
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$(call if_changed,ld)
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$(obj)/styncpy.o: $(obj)/strncpy.o $(obj)/$(ev67-y)strncat.o \
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$(obj)/$(ev6-y)stxncpy.o FORCE
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$(call if_changed,ld)
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