Annotation of qemu/dyngen-exec.h, revision 1.1.1.4

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: 
1.1.1.4 ! root       65: /* XXX: This may be wrong for 64-bit ILP32 hosts.  */
        !            66: typedef void * host_reg_t;
        !            67: 
1.1       root       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__
1.1.1.3   root      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
1.1       root      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"
1.1.1.3   root      158: #endif
                    159: #endif
1.1       root      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 */
1.1.1.4 ! root      194: #define FORCE_RET() __asm__ __volatile__("" : : : "memory");
1.1       root      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__
1.1.1.3   root      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")
1.1       root      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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