| # |
| # 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 |
| |