1 /* $OpenBSD: asm.h,v 1.7 2004/10/20 12:49:15 pefo Exp $ */ 2 3 /* 4 * Copyright (c) 2001-2002 Opsycon AB (www.opsycon.se / www.opsycon.com) 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 */ 28 #ifndef _MIPS64_ASM_H 29 #define _MIPS64_ASM_H 30 31 #define __bionic_asm_align 16 32 33 #undef __bionic_asm_custom_entry 34 #undef __bionic_asm_custom_end 35 #define __bionic_asm_custom_entry(f) .ent f 36 #define __bionic_asm_custom_end(f) .end f 37 38 #include <machine/regdef.h> 39 40 #define _MIPS_ISA_MIPS1 1 /* R2000/R3000 */ 41 #define _MIPS_ISA_MIPS2 2 /* R4000/R6000 */ 42 #define _MIPS_ISA_MIPS3 3 /* R4000 */ 43 #define _MIPS_ISA_MIPS4 4 /* TFP (R1x000) */ 44 #define _MIPS_ISA_MIPS5 5 45 #define _MIPS_ISA_MIPS32 6 46 #define _MIPS_ISA_MIPS64 7 47 48 #if !defined(ABICALLS) && !defined(_NO_ABICALLS) 49 #define ABICALLS .abicalls 50 #endif 51 52 #if defined(ABICALLS) && !defined(_KERNEL) 53 ABICALLS 54 #endif 55 56 /* 57 * Define how to access unaligned data word 58 */ 59 #define LWLO lwl 60 #define LWHI lwr 61 #define SWLO swl 62 #define SWHI swr 63 #define LDLO ldl 64 #define LDHI ldr 65 #define SDLO sdl 66 #define SDHI sdr 67 68 /* 69 * Define programming environment for ABI. 70 */ 71 #if defined(ABICALLS) && !defined(_KERNEL) && !defined(_STANDALONE) 72 73 #if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32) 74 #define NARGSAVE 4 75 76 #define SETUP_GP \ 77 .set noreorder; \ 78 .cpload t9; \ 79 .set reorder; 80 81 #define SAVE_GP(x) \ 82 .cprestore x 83 84 #define SETUP_GP64(gpoff, name) 85 #define RESTORE_GP64 86 #endif 87 88 #if (_MIPS_SIM == _ABI64) || (_MIPS_SIM == _ABIN32) 89 #define NARGSAVE 0 90 91 #define SETUP_GP 92 #define SAVE_GP(x) 93 #define SETUP_GP64(gpoff, name) \ 94 .cpsetup t9, gpoff, name 95 #define RESTORE_GP64 \ 96 .cpreturn 97 #endif 98 99 #define MKFSIZ(narg,locals) (((narg+locals)*REGSZ+31)&(~31)) 100 101 #else /* defined(ABICALLS) && !defined(_KERNEL) */ 102 103 #define NARGSAVE 4 104 #define SETUP_GP 105 #define SAVE_GP(x) 106 107 #define ALIGNSZ 16 /* Stack layout alignment */ 108 #define FRAMESZ(sz) (((sz) + (ALIGNSZ-1)) & ~(ALIGNSZ-1)) 109 110 #endif 111 112 /* 113 * Basic register operations based on selected ISA 114 */ 115 #if (_MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2 || _MIPS_ISA == _MIPS_ISA_MIPS32) 116 #define REGSZ 4 /* 32 bit mode register size */ 117 #define LOGREGSZ 2 /* log rsize */ 118 #define REG_S sw 119 #define REG_L lw 120 #define CF_SZ 24 /* Call frame size */ 121 #define CF_ARGSZ 16 /* Call frame arg size */ 122 #define CF_RA_OFFS 20 /* Call ra save offset */ 123 #endif 124 125 #if (_MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4 || _MIPS_ISA == _MIPS_ISA_MIPS64) 126 #define REGSZ 8 /* 64 bit mode register size */ 127 #define LOGREGSZ 3 /* log rsize */ 128 #define REG_S sd 129 #define REG_L ld 130 #define CF_SZ 48 /* Call frame size (multiple of ALIGNSZ) */ 131 #define CF_ARGSZ 32 /* Call frame arg size */ 132 #define CF_RA_OFFS 40 /* Call ra save offset */ 133 #endif 134 135 #define REGSZ_FP 8 /* 64 bit FP register size */ 136 137 #ifndef __LP64__ 138 #define PTR_L lw 139 #define PTR_S sw 140 #define PTR_SUB sub 141 #define PTR_ADD add 142 #define PTR_SUBU subu 143 #define PTR_ADDU addu 144 #define LI li 145 #define LA la 146 #define PTR_SLL sll 147 #define PTR_SRL srl 148 #define PTR_VAL .word 149 #else 150 #define PTR_L ld 151 #define PTR_S sd 152 #define PTR_ADD dadd 153 #define PTR_SUB dsub 154 #define PTR_SUBU dsubu 155 #define PTR_ADDU daddu 156 #define LI dli 157 #define LA dla 158 #define PTR_SLL dsll 159 #define PTR_SRL dsrl 160 #define PTR_VAL .dword 161 #endif 162 163 /* 164 * LEAF(x, fsize) 165 * 166 * Declare a leaf routine. 167 */ 168 #define LEAF(x, fsize) \ 169 .align 3; \ 170 .globl x; \ 171 .ent x, 0; \ 172 x: ; \ 173 .cfi_startproc; \ 174 .frame sp, fsize, ra; \ 175 SETUP_GP \ 176 177 /* 178 * NON_LEAF(x) 179 * 180 * Declare a non-leaf routine (a routine that makes other C calls). 181 */ 182 #define NON_LEAF(x, fsize, retpc) \ 183 .align 3; \ 184 .globl x; \ 185 .ent x, 0; \ 186 x: ; \ 187 .cfi_startproc; \ 188 .frame sp, fsize, retpc; \ 189 SETUP_GP \ 190 191 #endif /* !_MIPS_ASM_H */ 192