dyngen-exec.h

   1 /*
   2  *  dyngen defines for micro operation code
   3  *
   4  *  Copyright (c) 2003 Fabrice Bellard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #if !defined(__DYNGEN_EXEC_H__)
  21 #define __DYNGEN_EXEC_H__
  22
  23 /* NOTE: standard headers should be used with special care at this
  24    point because host CPU registers are used as global variables. Some
  25    host headers do not allow that. */
  26 #include <stddef.h>
  27
  28 typedef unsigned char uint8_t;
  29 typedef unsigned short uint16_t;
  30 typedef unsigned int uint32_t;
  31 /* XXX may be done for all 64 bits targets ? */
  32 #if defined (__x86_64__) || defined(__ia64)
  33 typedef unsigned long uint64_t;
  34 #else
  35 typedef unsigned long long uint64_t;
  36 #endif
  37
  38 typedef signed char int8_t;
  39 typedef signed short int16_t;
  40 typedef signed int int32_t;
  41 #if defined (__x86_64__) || defined(__ia64)
  42 typedef signed long int64_t;
  43 #else
  44 typedef signed long long int64_t;
  45 #endif
  46
  47 #define INT8_MIN                (-128)
  48 #define INT16_MIN               (-32767-1)
  49 #define INT32_MIN               (-2147483647-1)
  50 #define INT64_MIN               (-(int64_t)(9223372036854775807)-1)
  51 #define INT8_MAX                (127)
  52 #define INT16_MAX               (32767)
  53 #define INT32_MAX               (2147483647)
  54 #define INT64_MAX               ((int64_t)(9223372036854775807))
  55 #define UINT8_MAX               (255)
  56 #define UINT16_MAX              (65535)
  57 #define UINT32_MAX              (4294967295U)
  58 #define UINT64_MAX              ((uint64_t)(18446744073709551615))
  59
  60 typedef struct FILE FILE;
  61 extern int fprintf(FILE *, const char *, ...);
  62 extern int printf(const char *, ...);
  63 #undef NULL
  64 #define NULL 0
  65
  66 #ifdef __i386__
  67 #define AREG0 "ebp"
  68 #define AREG1 "ebx"
  69 #define AREG2 "esi"
  70 #define AREG3 "edi"
  71 #endif
  72 #ifdef __x86_64__
  73 #define AREG0 "rbp"
  74 #define AREG1 "rbx"
  75 #define AREG2 "r12"
  76 #define AREG3 "r13"
  77 //#define AREG4 "r14"
  78 //#define AREG5 "r15"
  79 #endif
  80 #ifdef __powerpc__
  81 #define AREG0 "r27"
  82 #define AREG1 "r24"
  83 #define AREG2 "r25"
  84 #define AREG3 "r26"
  85 /* XXX: suppress this hack */
  86 #if defined(CONFIG_USER_ONLY)
  87 #define AREG4 "r16"
  88 #define AREG5 "r17"
  89 #define AREG6 "r18"
  90 #define AREG7 "r19"
  91 #define AREG8 "r20"
  92 #define AREG9 "r21"
  93 #define AREG10 "r22"
  94 #define AREG11 "r23"
  95 #endif
  96 #define USE_INT_TO_FLOAT_HELPERS
  97 #define BUGGY_GCC_DIV64
  98 #endif
  99 #ifdef __arm__
 100 #define AREG0 "r7"
 101 #define AREG1 "r4"
 102 #define AREG2 "r5"
 103 #define AREG3 "r6"
 104 #endif
 105 #ifdef __mips__
 106 #define AREG0 "s3"
 107 #define AREG1 "s0"
 108 #define AREG2 "s1"
 109 #define AREG3 "s2"
 110 #endif
 111 #ifdef __sparc__
 112 #define AREG0 "g6"
 113 #define AREG1 "g1"
 114 #define AREG2 "g2"
 115 #define AREG3 "g3"
 116 #define AREG4 "l0"
 117 #define AREG5 "l1"
 118 #define AREG6 "l2"
 119 #define AREG7 "l3"
 120 #define AREG8 "l4"
 121 #define AREG9 "l5"
 122 #define AREG10 "l6"
 123 #define AREG11 "l7"
 124 #define USE_FP_CONVERT
 125 #endif
 126 #ifdef __s390__
 127 #define AREG0 "r10"
 128 #define AREG1 "r7"
 129 #define AREG2 "r8"
 130 #define AREG3 "r9"
 131 #endif
 132 #ifdef __alpha__
 133 /* Note $15 is the frame pointer, so anything in op-i386.c that would
 134    require a frame pointer, like alloca, would probably loose.  */
 135 #define AREG0 "$15"
 136 #define AREG1 "$9"
 137 #define AREG2 "$10"
 138 #define AREG3 "$11"
 139 #define AREG4 "$12"
 140 #define AREG5 "$13"
 141 #define AREG6 "$14"
 142 #endif
 143 #ifdef __mc68000
 144 #define AREG0 "%a5"
 145 #define AREG1 "%a4"
 146 #define AREG2 "%d7"
 147 #define AREG3 "%d6"
 148 #define AREG4 "%d5"
 149 #endif
 150 #ifdef __ia64__
 151 #define AREG0 "r7"
 152 #define AREG1 "r4"
 153 #define AREG2 "r5"
 154 #define AREG3 "r6"
 155 #endif
 156
 157 /* force GCC to generate only one epilog at the end of the function */
 158 #define FORCE_RET() asm volatile ("");
 159
 160 #ifndef OPPROTO
 161 #define OPPROTO
 162 #endif
 163
 164 #define xglue(x, y) x ## y
 165 #define glue(x, y) xglue(x, y)
 166 #define stringify(s)    tostring(s)
 167 #define tostring(s)     #s
 168
 169 #ifdef __alpha__
 170 /* the symbols are considered non exported so a br immediate is generated */
 171 #define __hidden __attribute__((visibility("hidden")))
 172 #else
 173 #define __hidden
 174 #endif
 175
 176 #if defined(__alpha__)
 177 /* Suggested by Richard Henderson. This will result in code like
 178         ldah $0,__op_param1($29)        !gprelhigh
 179         lda $0,__op_param1($0)          !gprellow
 180    We can then conveniently change $29 to $31 and adapt the offsets to
 181    emit the appropriate constant.  */
 182 extern int __op_param1 __hidden;
 183 extern int __op_param2 __hidden;
 184 extern int __op_param3 __hidden;
 185 #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
 186 #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
 187 #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
 188 #else
 189 #if defined(__APPLE__)
 190 static int __op_param1, __op_param2, __op_param3;
 191 #else
 192 extern int __op_param1, __op_param2, __op_param3;
 193 #endif
 194 #define PARAM1 ((long)(&__op_param1))
 195 #define PARAM2 ((long)(&__op_param2))
 196 #define PARAM3 ((long)(&__op_param3))
 197 #endif /* !defined(__alpha__) */
 198
 199 extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
 200
 201 #if defined(_WIN32) || defined(__APPLE__)
 202 #define ASM_NAME(x) "_" #x
 203 #else
 204 #define ASM_NAME(x) #x
 205 #endif
 206
 207 #ifdef __i386__
 208 #define EXIT_TB() asm volatile ("ret")
 209 #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
 210 #endif
 211 #ifdef __x86_64__
 212 #define EXIT_TB() asm volatile ("ret")
 213 #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
 214 #endif
 215 #ifdef __powerpc__
 216 #define EXIT_TB() asm volatile ("blr")
 217 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 218 #endif
 219 #ifdef __s390__
 220 #define EXIT_TB() asm volatile ("br %r14")
 221 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 222 #endif
 223 #ifdef __alpha__
 224 #define EXIT_TB() asm volatile ("ret")
 225 #endif
 226 #ifdef __ia64__
 227 #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
 228 #define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \
 229                                           ASM_NAME(__op_gen_label) #n)
 230 #endif
 231 #ifdef __sparc__
 232 #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0\n" \
 233                                 "nop")
 234 #endif
 235 #ifdef __arm__
 236 #define EXIT_TB() asm volatile ("b exec_loop")
 237 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 238 #endif
 239 #ifdef __mc68000
 240 #define EXIT_TB() asm volatile ("rts")
 241 #endif
 242
 243 #endif /* !defined(__DYNGEN_EXEC_H__) */