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 /* prevent Solaris from trying to typedef FILE in gcc's
  24    include/floatingpoint.h which will conflict with the
  25    definition down below */
  26 #ifdef __sun__
  27 #define _FILEDEFED
  28 #endif
  29
  30 /* NOTE: standard headers should be used with special care at this
  31    point because host CPU registers are used as global variables. Some
  32    host headers do not allow that. */
  33 #include <stddef.h>
  34
  35 typedef unsigned char uint8_t;
  36 typedef unsigned short uint16_t;
  37 typedef unsigned int uint32_t;
  38 // Linux/Sparc64 defines uint64_t
  39 #if !(defined (__sparc_v9__) && defined(__linux__))
  40 /* XXX may be done for all 64 bits targets ? */
  41 #if defined (__x86_64__) || defined(__ia64)
  42 typedef unsigned long uint64_t;
  43 #else
  44 typedef unsigned long long uint64_t;
  45 #endif
  46 #endif
  47
  48 /* if Solaris/__sun__, don't typedef int8_t, as it will be typedef'd
  49    prior to this and will cause an error in compliation, conflicting
  50    with /usr/include/sys/int_types.h, line 75 */
  51 #ifndef __sun__
  52 typedef signed char int8_t;
  53 #endif
  54 typedef signed short int16_t;
  55 typedef signed int int32_t;
  56 // Linux/Sparc64 defines int64_t
  57 #if !(defined (__sparc_v9__) && defined(__linux__))
  58 #if defined (__x86_64__) || defined(__ia64)
  59 typedef signed long int64_t;
  60 #else
  61 typedef signed long long int64_t;
  62 #endif
  63 #endif
  64
  65 /* XXX: This may be wrong for 64-bit ILP32 hosts.  */
  66 typedef void * host_reg_t;
  67
  68 #define INT8_MIN                (-128)
  69 #define INT16_MIN               (-32767-1)
  70 #define INT32_MIN               (-2147483647-1)
  71 #define INT64_MIN               (-(int64_t)(9223372036854775807)-1)
  72 #define INT8_MAX                (127)
  73 #define INT16_MAX               (32767)
  74 #define INT32_MAX               (2147483647)
  75 #define INT64_MAX               ((int64_t)(9223372036854775807))
  76 #define UINT8_MAX               (255)
  77 #define UINT16_MAX              (65535)
  78 #define UINT32_MAX              (4294967295U)
  79 #define UINT64_MAX              ((uint64_t)(18446744073709551615))
  80
  81 typedef struct FILE FILE;
  82 extern int fprintf(FILE *, const char *, ...);
  83 extern int printf(const char *, ...);
  84 #undef NULL
  85 #define NULL 0
  86
  87 #ifdef __i386__
  88 #define AREG0 "ebp"
  89 #define AREG1 "ebx"
  90 #define AREG2 "esi"
  91 #define AREG3 "edi"
  92 #endif
  93 #ifdef __x86_64__
  94 #define AREG0 "rbp"
  95 #define AREG1 "rbx"
  96 #define AREG2 "r12"
  97 #define AREG3 "r13"
  98 //#define AREG4 "r14"
  99 //#define AREG5 "r15"
 100 #endif
 101 #ifdef __powerpc__
 102 #define AREG0 "r27"
 103 #define AREG1 "r24"
 104 #define AREG2 "r25"
 105 #define AREG3 "r26"
 106 /* XXX: suppress this hack */
 107 #if defined(CONFIG_USER_ONLY)
 108 #define AREG4 "r16"
 109 #define AREG5 "r17"
 110 #define AREG6 "r18"
 111 #define AREG7 "r19"
 112 #define AREG8 "r20"
 113 #define AREG9 "r21"
 114 #define AREG10 "r22"
 115 #define AREG11 "r23"
 116 #endif
 117 #define USE_INT_TO_FLOAT_HELPERS
 118 #define BUGGY_GCC_DIV64
 119 #endif
 120 #ifdef __arm__
 121 #define AREG0 "r7"
 122 #define AREG1 "r4"
 123 #define AREG2 "r5"
 124 #define AREG3 "r6"
 125 #endif
 126 #ifdef __mips__
 127 #define AREG0 "s3"
 128 #define AREG1 "s0"
 129 #define AREG2 "s1"
 130 #define AREG3 "s2"
 131 #endif
 132 #ifdef __sparc__
 133 #ifdef HOST_SOLARIS
 134 #define AREG0 "g2"
 135 #define AREG1 "g3"
 136 #define AREG2 "g4"
 137 #define AREG3 "g5"
 138 #define AREG4 "g6"
 139 #else
 140 #ifdef __sparc_v9__
 141 #define AREG0 "g1"
 142 #define AREG1 "g4"
 143 #define AREG2 "g5"
 144 #define AREG3 "g7"
 145 #else
 146 #define AREG0 "g6"
 147 #define AREG1 "g1"
 148 #define AREG2 "g2"
 149 #define AREG3 "g3"
 150 #define AREG4 "l0"
 151 #define AREG5 "l1"
 152 #define AREG6 "l2"
 153 #define AREG7 "l3"
 154 #define AREG8 "l4"
 155 #define AREG9 "l5"
 156 #define AREG10 "l6"
 157 #define AREG11 "l7"
 158 #endif
 159 #endif
 160 #define USE_FP_CONVERT
 161 #endif
 162 #ifdef __s390__
 163 #define AREG0 "r10"
 164 #define AREG1 "r7"
 165 #define AREG2 "r8"
 166 #define AREG3 "r9"
 167 #endif
 168 #ifdef __alpha__
 169 /* Note $15 is the frame pointer, so anything in op-i386.c that would
 170    require a frame pointer, like alloca, would probably loose.  */
 171 #define AREG0 "$15"
 172 #define AREG1 "$9"
 173 #define AREG2 "$10"
 174 #define AREG3 "$11"
 175 #define AREG4 "$12"
 176 #define AREG5 "$13"
 177 #define AREG6 "$14"
 178 #endif
 179 #ifdef __mc68000
 180 #define AREG0 "%a5"
 181 #define AREG1 "%a4"
 182 #define AREG2 "%d7"
 183 #define AREG3 "%d6"
 184 #define AREG4 "%d5"
 185 #endif
 186 #ifdef __ia64__
 187 #define AREG0 "r7"
 188 #define AREG1 "r4"
 189 #define AREG2 "r5"
 190 #define AREG3 "r6"
 191 #endif
 192
 193 /* force GCC to generate only one epilog at the end of the function */
 194 #define FORCE_RET() __asm__ __volatile__("" : : : "memory");
 195
 196 #ifndef OPPROTO
 197 #define OPPROTO
 198 #endif
 199
 200 #define xglue(x, y) x ## y
 201 #define glue(x, y) xglue(x, y)
 202 #define stringify(s)    tostring(s)
 203 #define tostring(s)     #s
 204
 205 #ifdef __alpha__
 206 /* the symbols are considered non exported so a br immediate is generated */
 207 #define __hidden __attribute__((visibility("hidden")))
 208 #else
 209 #define __hidden
 210 #endif
 211
 212 #if defined(__alpha__)
 213 /* Suggested by Richard Henderson. This will result in code like
 214         ldah $0,__op_param1($29)        !gprelhigh
 215         lda $0,__op_param1($0)          !gprellow
 216    We can then conveniently change $29 to $31 and adapt the offsets to
 217    emit the appropriate constant.  */
 218 extern int __op_param1 __hidden;
 219 extern int __op_param2 __hidden;
 220 extern int __op_param3 __hidden;
 221 #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
 222 #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
 223 #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
 224 #else
 225 #if defined(__APPLE__)
 226 static int __op_param1, __op_param2, __op_param3;
 227 #else
 228 extern int __op_param1, __op_param2, __op_param3;
 229 #endif
 230 #define PARAM1 ((long)(&__op_param1))
 231 #define PARAM2 ((long)(&__op_param2))
 232 #define PARAM3 ((long)(&__op_param3))
 233 #endif /* !defined(__alpha__) */
 234
 235 extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
 236
 237 #if defined(_WIN32) || defined(__APPLE__)
 238 #define ASM_NAME(x) "_" #x
 239 #else
 240 #define ASM_NAME(x) #x
 241 #endif
 242
 243 #ifdef __i386__
 244 #define EXIT_TB() asm volatile ("ret")
 245 #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
 246 #endif
 247 #ifdef __x86_64__
 248 #define EXIT_TB() asm volatile ("ret")
 249 #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
 250 #endif
 251 #ifdef __powerpc__
 252 #define EXIT_TB() asm volatile ("blr")
 253 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 254 #endif
 255 #ifdef __s390__
 256 #define EXIT_TB() asm volatile ("br %r14")
 257 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 258 #endif
 259 #ifdef __alpha__
 260 #define EXIT_TB() asm volatile ("ret")
 261 #endif
 262 #ifdef __ia64__
 263 #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
 264 #define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \
 265                                           ASM_NAME(__op_gen_label) #n)
 266 #endif
 267 #ifdef __sparc__
 268 #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0; nop")
 269 #define GOTO_LABEL_PARAM(n) asm volatile ("ba " ASM_NAME(__op_gen_label) #n ";nop")
 270 #endif
 271 #ifdef __arm__
 272 #define EXIT_TB() asm volatile ("b exec_loop")
 273 #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
 274 #endif
 275 #ifdef __mc68000
 276 #define EXIT_TB() asm volatile ("rts")
 277 #endif
 278
 279 #endif /* !defined(__DYNGEN_EXEC_H__) */