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- #
- # This file is subject to the terms and conditions of the GNU General Public
- # License. See the file "COPYING" in the main directory of this archive
- # for more details.
- #
- # Copyright (C) 2000, 2001 Paolo Alberelli
- # Copyright (C) 2003, 2004 Paul Mundt
- #
- # Makefile for the sh64-specific parts of the Linux memory manager.
- #
- # Note! Dependencies are done automagically by 'make dep', which also
- # removes any old dependencies. DON'T put your own dependencies here
- # unless it's something special (ie not a .c file).
- #
- obj-y := init.o fault.o ioremap.o extable.o cache.o tlbmiss.o tlb.o
- obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
- # Special flags for tlbmiss.o. This puts restrictions on the number of
- # caller-save registers that the compiler can target when building this file.
- # This is required because the code is called from a context in entry.S where
- # very few registers have been saved in the exception handler (for speed
- # reasons).
- # The caller save registers that have been saved and which can be used are
- # r2,r3,r4,r5 : argument passing
- # r15, r18 : SP and LINK
- # tr0-4 : allow all caller-save TR's. The compiler seems to be able to make
- # use of them, so it's probably beneficial to performance to save them
- # and have them available for it.
- #
- # The resources not listed below are callee save, i.e. the compiler is free to
- # use any of them and will spill them to the stack itself.
- CFLAGS_tlbmiss.o += -ffixed-r7 \
- -ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
- -ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
- -ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
- -ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
- -ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
- -ffixed-r41 -ffixed-r42 -ffixed-r43 \
- -ffixed-r60 -ffixed-r61 -ffixed-r62 \
- -fomit-frame-pointer
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