File:  [Qemu by Fabrice Bellard] / qemu / dyngen-exec.h
Revision 1.1: download - view: text, annotated - select for diffs
Tue Apr 24 16:37:52 2018 UTC (3 years, 7 months ago) by root
CVS tags: MAIN, HEAD
Initial revision

    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__) */

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