Annotation of qemu/dyngen-exec.h, revision 1.1.1.3

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

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