forked from luck/tmp_suning_uos_patched
9641c7cc5a
MMUless systems have only one address space for all threads, so both the usual access_ok() checks, and the exception handling do not make much sense. Hence, discard the fixup and exception tables at link time, use memcpy/memset for the user copy/clearing functions, and define the permission check macros to be constants. Some of this patch was derived from the equivalent patch by Hyok S. Choi. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
47 lines
1.4 KiB
Makefile
47 lines
1.4 KiB
Makefile
#
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# linux/arch/arm/lib/Makefile
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#
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# Copyright (C) 1995-2000 Russell King
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#
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lib-y := backtrace.o changebit.o csumipv6.o csumpartial.o \
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csumpartialcopy.o csumpartialcopyuser.o clearbit.o \
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delay.o findbit.o memchr.o memcpy.o \
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memmove.o memset.o memzero.o setbit.o \
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strncpy_from_user.o strnlen_user.o \
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strchr.o strrchr.o \
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testchangebit.o testclearbit.o testsetbit.o \
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ashldi3.o ashrdi3.o lshrdi3.o muldi3.o \
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ucmpdi2.o lib1funcs.o div64.o sha1.o \
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io-readsb.o io-writesb.o io-readsl.o io-writesl.o
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mmu-y := clear_user.o copy_page.o getuser.o putuser.o
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# the code in uaccess.S is not preemption safe and
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# probably faster on ARMv3 only
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ifeq ($(CONFIG_PREEMPT),y)
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mmu-y += copy_from_user.o copy_to_user.o
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else
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ifneq ($(CONFIG_CPU_32v3),y)
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mmu-y += copy_from_user.o copy_to_user.o
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else
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mmu-y += uaccess.o
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endif
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endif
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lib-$(CONFIG_MMU) += $(mmu-y)
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ifeq ($(CONFIG_CPU_32v3),y)
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lib-y += io-readsw-armv3.o io-writesw-armv3.o
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else
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lib-y += io-readsw-armv4.o io-writesw-armv4.o
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endif
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lib-$(CONFIG_ARCH_RPC) += ecard.o io-acorn.o floppydma.o
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lib-$(CONFIG_ARCH_CLPS7500) += io-acorn.o
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lib-$(CONFIG_ARCH_L7200) += io-acorn.o
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lib-$(CONFIG_ARCH_SHARK) += io-shark.o
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$(obj)/csumpartialcopy.o: $(obj)/csumpartialcopygeneric.S
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$(obj)/csumpartialcopyuser.o: $(obj)/csumpartialcopygeneric.S
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