arch/sh64/mm/Makefile

   1 #
   2 # This file is subject to the terms and conditions of the GNU General Public
   3 # License.  See the file "COPYING" in the main directory of this archive
   4 # for more details.
   5 #
   6 # Copyright (C) 2000, 2001  Paolo Alberelli
   7 # Copyright (C) 2003, 2004  Paul Mundt
   8 #
   9 # Makefile for the sh64-specific parts of the Linux memory manager.
  10 #
  11 # Note! Dependencies are done automagically by 'make dep', which also
  12 # removes any old dependencies. DON'T put your own dependencies here
  13 # unless it's something special (ie not a .c file).
  14 #
  15
  16 obj-y := init.o fault.o ioremap.o extable.o cache.o tlbmiss.o tlb.o
  17
  18 obj-$(CONFIG_HUGETLB_PAGE)      += hugetlbpage.o
  19
  20 # Special flags for tlbmiss.o.  This puts restrictions on the number of
  21 # caller-save registers that the compiler can target when building this file.
  22 # This is required because the code is called from a context in entry.S where
  23 # very few registers have been saved in the exception handler (for speed
  24 # reasons).
  25 # The caller save registers that have been saved and which can be used are
  26 # r2,r3,r4,r5 : argument passing
  27 # r15, r18 : SP and LINK
  28 # tr0-4 : allow all caller-save TR's.  The compiler seems to be able to make
  29 #         use of them, so it's probably beneficial to performance to save them
  30 #         and have them available for it.
  31 #
  32 # The resources not listed below are callee save, i.e. the compiler is free to
  33 # use any of them and will spill them to the stack itself.
  34
  35 CFLAGS_tlbmiss.o += -ffixed-r7 \
  36         -ffixed-r8 -ffixed-r9 -ffixed-r10 -ffixed-r11 -ffixed-r12 \
  37         -ffixed-r13 -ffixed-r14 -ffixed-r16 -ffixed-r17 -ffixed-r19 \
  38         -ffixed-r20 -ffixed-r21 -ffixed-r22 -ffixed-r23 \
  39         -ffixed-r24 -ffixed-r25 -ffixed-r26 -ffixed-r27 \
  40         -ffixed-r36 -ffixed-r37 -ffixed-r38 -ffixed-r39 -ffixed-r40 \
  41         -ffixed-r41 -ffixed-r42 -ffixed-r43  \
  42         -ffixed-r60 -ffixed-r61 -ffixed-r62 \
  43         -fomit-frame-pointer
  44