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) || defined(__s390x__) || defined(__alpha__) 
   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) || defined(__s390x__) || defined(__alpha__)
   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: #ifdef _BSD
   82: typedef struct __sFILE FILE;
   83: #else
   84: typedef struct FILE FILE;
   85: #endif
   86: extern int fprintf(FILE *, const char *, ...);
   87: extern int fputs(const char *, FILE *);
   88: extern int printf(const char *, ...);
   89: #undef NULL
   90: #define NULL 0
   91: 
   92: #if defined(__i386__)
   93: #define AREG0 "ebp"
   94: #define AREG1 "ebx"
   95: #define AREG2 "esi"
   96: #define AREG3 "edi"
   97: #elif defined(__x86_64__)
   98: #define AREG0 "r14"
   99: #define AREG1 "r15"
  100: #define AREG2 "r12"
  101: #define AREG3 "r13"
  102: //#define AREG4 "rbp"
  103: //#define AREG5 "rbx"
  104: #elif defined(__powerpc__)
  105: #define AREG0 "r27"
  106: #define AREG1 "r24"
  107: #define AREG2 "r25"
  108: #define AREG3 "r26"
  109: /* XXX: suppress this hack */
  110: #if defined(CONFIG_USER_ONLY)
  111: #define AREG4 "r16"
  112: #define AREG5 "r17"
  113: #define AREG6 "r18"
  114: #define AREG7 "r19"
  115: #define AREG8 "r20"
  116: #define AREG9 "r21"
  117: #define AREG10 "r22"
  118: #define AREG11 "r23"
  119: #endif
  120: #define USE_INT_TO_FLOAT_HELPERS
  121: #define BUGGY_GCC_DIV64
  122: #elif defined(__arm__)
  123: #define AREG0 "r7"
  124: #define AREG1 "r4"
  125: #define AREG2 "r5"
  126: #define AREG3 "r6"
  127: #elif defined(__mips__)
  128: #define AREG0 "fp"
  129: #define AREG1 "s0"
  130: #define AREG2 "s1"
  131: #define AREG3 "s2"
  132: #define AREG4 "s3"
  133: #define AREG5 "s4"
  134: #define AREG6 "s5"
  135: #define AREG7 "s6"
  136: #define AREG8 "s7"
  137: #elif defined(__sparc__)
  138: #ifdef HOST_SOLARIS
  139: #define AREG0 "g2"
  140: #define AREG1 "g3"
  141: #define AREG2 "g4"
  142: #define AREG3 "g5"
  143: #define AREG4 "g6"
  144: #else
  145: #ifdef __sparc_v9__
  146: #define AREG0 "g1"
  147: #define AREG1 "g4"
  148: #define AREG2 "g5"
  149: #define AREG3 "g7"
  150: #else
  151: #define AREG0 "g6"
  152: #define AREG1 "g1"
  153: #define AREG2 "g2"
  154: #define AREG3 "g3"
  155: #define AREG4 "l0"
  156: #define AREG5 "l1"
  157: #define AREG6 "l2"
  158: #define AREG7 "l3"
  159: #define AREG8 "l4"
  160: #define AREG9 "l5"
  161: #define AREG10 "l6"
  162: #define AREG11 "l7"
  163: #endif
  164: #endif
  165: #define USE_FP_CONVERT
  166: #elif defined(__s390__)
  167: #define AREG0 "r10"
  168: #define AREG1 "r7"
  169: #define AREG2 "r8"
  170: #define AREG3 "r9"
  171: #elif defined(__alpha__)
  172: /* Note $15 is the frame pointer, so anything in op-i386.c that would
  173:    require a frame pointer, like alloca, would probably loose.  */
  174: #define AREG0 "$15"
  175: #define AREG1 "$9"
  176: #define AREG2 "$10"
  177: #define AREG3 "$11"
  178: #define AREG4 "$12"
  179: #define AREG5 "$13"
  180: #define AREG6 "$14"
  181: #elif defined(__mc68000)
  182: #define AREG0 "%a5"
  183: #define AREG1 "%a4"
  184: #define AREG2 "%d7"
  185: #define AREG3 "%d6"
  186: #define AREG4 "%d5"
  187: #elif defined(__ia64__)
  188: #define AREG0 "r7"
  189: #define AREG1 "r4"
  190: #define AREG2 "r5"
  191: #define AREG3 "r6"
  192: #else
  193: #error unsupported CPU
  194: #endif
  195: 
  196: /* force GCC to generate only one epilog at the end of the function */
  197: #define FORCE_RET() __asm__ __volatile__("" : : : "memory");
  198: 
  199: #ifndef OPPROTO
  200: #define OPPROTO
  201: #endif
  202: 
  203: #define xglue(x, y) x ## y
  204: #define glue(x, y) xglue(x, y)
  205: #define stringify(s)    tostring(s)
  206: #define tostring(s)     #s
  207: 
  208: #if defined(__alpha__) || defined(__s390__)
  209: /* the symbols are considered non exported so a br immediate is generated */
  210: #define __hidden __attribute__((visibility("hidden")))
  211: #else
  212: #define __hidden
  213: #endif
  214: 
  215: #if defined(__alpha__)
  216: /* Suggested by Richard Henderson. This will result in code like
  217:         ldah $0,__op_param1($29)        !gprelhigh
  218:         lda $0,__op_param1($0)          !gprellow
  219:    We can then conveniently change $29 to $31 and adapt the offsets to
  220:    emit the appropriate constant.  */
  221: extern int __op_param1 __hidden;
  222: extern int __op_param2 __hidden;
  223: extern int __op_param3 __hidden;
  224: #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
  225: #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
  226: #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
  227: #elif defined(__s390__)
  228: extern int __op_param1 __hidden;
  229: extern int __op_param2 __hidden;
  230: extern int __op_param3 __hidden;
  231: #define PARAM1 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param1) "; l %0,0(%0)" : "=r"(_r) : ); _r; })
  232: #define PARAM2 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param2) "; l %0,0(%0)" : "=r"(_r) : ); _r; })
  233: #define PARAM3 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param3) "; l %0,0(%0)" : "=r"(_r) : ); _r; })
  234: #else
  235: #if defined(__APPLE__)
  236: static int __op_param1, __op_param2, __op_param3;
  237: #else
  238: extern int __op_param1, __op_param2, __op_param3;
  239: #endif
  240: #define PARAM1 ((long)(&__op_param1))
  241: #define PARAM2 ((long)(&__op_param2))
  242: #define PARAM3 ((long)(&__op_param3))
  243: #endif /* !defined(__alpha__) */
  244: 
  245: extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;
  246: 
  247: #if defined(_WIN32) || defined(__APPLE__)
  248: #define ASM_NAME(x) "_" #x
  249: #else
  250: #define ASM_NAME(x) #x
  251: #endif
  252: 
  253: #if defined(__i386__)
  254: #define EXIT_TB() asm volatile ("ret")
  255: #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
  256: #elif defined(__x86_64__)
  257: #define EXIT_TB() asm volatile ("ret")
  258: #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
  259: #elif defined(__powerpc__)
  260: #define EXIT_TB() asm volatile ("blr")
  261: #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
  262: #elif defined(__s390__)
  263: #define EXIT_TB() asm volatile ("br %r14")
  264: #define GOTO_LABEL_PARAM(n) asm volatile ("larl %r7,12; l %r7,0(%r7); br %r7; .long " ASM_NAME(__op_gen_label) #n)
  265: #elif defined(__alpha__)
  266: #define EXIT_TB() asm volatile ("ret")
  267: #elif defined(__ia64__)
  268: #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
  269: #define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \
  270:                                           ASM_NAME(__op_gen_label) #n)
  271: #elif defined(__sparc__)
  272: #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0; nop")
  273: #define GOTO_LABEL_PARAM(n) asm volatile ("ba " ASM_NAME(__op_gen_label) #n ";nop")
  274: #elif defined(__arm__)
  275: #define EXIT_TB() asm volatile ("b exec_loop")
  276: #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
  277: #elif defined(__mc68000)
  278: #define EXIT_TB() asm volatile ("rts")
  279: #elif defined(__mips__)
  280: #define EXIT_TB() asm volatile ("jr $ra")
  281: #define GOTO_LABEL_PARAM(n) asm volatile (".set noat; la $1, " ASM_NAME(__op_gen_label) #n "; jr $1; .set at")
  282: #else
  283: #error unsupported CPU
  284: #endif
  285: 
  286: #endif /* !defined(__DYNGEN_EXEC_H__) */