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 4 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 #if !defined(__MIPSEL__) && !defined(__MIPSEB__) 57 #error "__MIPSEL__ or __MIPSEB__ must be defined" 58 #endif 59 /* 60 * Define how to access unaligned data word 61 */ 62 #if defined(__MIPSEL__) 63 #define LWLO lwl 64 #define LWHI lwr 65 #define SWLO swl 66 #define SWHI swr 67 #define LDLO ldl 68 #define LDHI ldr 69 #define SDLO sdl 70 #define SDHI sdr 71 #endif 72 #if defined(__MIPSEB__) 73 #define LWLO lwr 74 #define LWHI lwl 75 #define SWLO swr 76 #define SWHI swl 77 #define LDLO ldr 78 #define LDHI ldl 79 #define SDLO sdr 80 #define SDHI sdl 81 #endif 82 83 /* 84 * Define programming environment for ABI. 85 */ 86 #if defined(ABICALLS) && !defined(_KERNEL) && !defined(_STANDALONE) 87 88 #if (_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABI32) 89 #define NARGSAVE 4 90 91 #define SETUP_GP \ 92 .set noreorder; \ 93 .cpload t9; \ 94 .set reorder; 95 96 #define SAVE_GP(x) \ 97 .cprestore x 98 99 #define SETUP_GP64(gpoff, name) 100 #define RESTORE_GP64 101 #endif 102 103 #if (_MIPS_SIM == _ABI64) || (_MIPS_SIM == _ABIN32) 104 #define NARGSAVE 0 105 106 #define SETUP_GP 107 #define SAVE_GP(x) 108 #define SETUP_GP64(gpoff, name) \ 109 .cpsetup t9, gpoff, name 110 #define RESTORE_GP64 \ 111 .cpreturn 112 #endif 113 114 #define MKFSIZ(narg,locals) (((narg+locals)*REGSZ+31)&(~31)) 115 116 #else /* defined(ABICALLS) && !defined(_KERNEL) */ 117 118 #define NARGSAVE 4 119 #define SETUP_GP 120 #define SAVE_GP(x) 121 122 #define ALIGNSZ 16 /* Stack layout alignment */ 123 #define FRAMESZ(sz) (((sz) + (ALIGNSZ-1)) & ~(ALIGNSZ-1)) 124 125 #endif 126 127 /* 128 * Basic register operations based on selected ISA 129 */ 130 #if (_MIPS_ISA == _MIPS_ISA_MIPS1 || _MIPS_ISA == _MIPS_ISA_MIPS2 || _MIPS_ISA == _MIPS_ISA_MIPS32) 131 #define REGSZ 4 /* 32 bit mode register size */ 132 #define LOGREGSZ 2 /* log rsize */ 133 #define REG_S sw 134 #define REG_L lw 135 #define CF_SZ 24 /* Call frame size */ 136 #define CF_ARGSZ 16 /* Call frame arg size */ 137 #define CF_RA_OFFS 20 /* Call ra save offset */ 138 #endif 139 140 #if (_MIPS_ISA == _MIPS_ISA_MIPS3 || _MIPS_ISA == _MIPS_ISA_MIPS4 || _MIPS_ISA == _MIPS_ISA_MIPS64) 141 #define REGSZ 8 /* 64 bit mode register size */ 142 #define LOGREGSZ 3 /* log rsize */ 143 #define REG_S sd 144 #define REG_L ld 145 #define CF_SZ 48 /* Call frame size (multiple of ALIGNSZ) */ 146 #define CF_ARGSZ 32 /* Call frame arg size */ 147 #define CF_RA_OFFS 40 /* Call ra save offset */ 148 #endif 149 150 #define REGSZ_FP 8 /* 64 bit FP register size */ 151 152 #ifndef __LP64__ 153 #define PTR_L lw 154 #define PTR_S sw 155 #define PTR_SUB sub 156 #define PTR_ADD add 157 #define PTR_SUBU subu 158 #define PTR_ADDU addu 159 #define LI li 160 #define LA la 161 #define PTR_SLL sll 162 #define PTR_SRL srl 163 #define PTR_VAL .word 164 #else 165 #define PTR_L ld 166 #define PTR_S sd 167 #define PTR_ADD dadd 168 #define PTR_SUB dsub 169 #define PTR_SUBU dsubu 170 #define PTR_ADDU daddu 171 #define LI dli 172 #define LA dla 173 #define PTR_SLL dsll 174 #define PTR_SRL dsrl 175 #define PTR_VAL .dword 176 #endif 177 178 /* 179 * LEAF(x, fsize) 180 * 181 * Declare a leaf routine. 182 */ 183 #define LEAF(x, fsize) \ 184 .align 3; \ 185 .globl x; \ 186 .ent x, 0; \ 187 x: ; \ 188 .cfi_startproc; \ 189 .frame sp, fsize, ra; \ 190 SETUP_GP \ 191 192 /* 193 * NON_LEAF(x) 194 * 195 * Declare a non-leaf routine (a routine that makes other C calls). 196 */ 197 #define NON_LEAF(x, fsize, retpc) \ 198 .align 3; \ 199 .globl x; \ 200 .ent x, 0; \ 201 x: ; \ 202 .cfi_startproc; \ 203 .frame sp, fsize, retpc; \ 204 SETUP_GP \ 205 206 #endif /* !_MIPS_ASM_H */ 207