File:  [Qemu by Fabrice Bellard] / qemu / dyngen-exec.h
Revision 1.1.1.4 (vendor branch): download - view: text, annotated - select for diffs
Tue Apr 24 16:45:03 2018 UTC (3 years, 8 months ago) by root
Branches: qemu, MAIN
CVS tags: qemu0090, HEAD
qemu 0.9.0

    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__) */

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