Annotation of qemu/dyngen-exec.h, revision 1.1.1.5

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 ? */
1.1.1.5 ! root       41: #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) 
1.1       root       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__))
1.1.1.5 ! root       58: #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__)
1.1       root       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: 
1.1.1.5 ! root       81: #ifdef _BSD
        !            82: typedef struct __sFILE FILE;
        !            83: #else
1.1       root       84: typedef struct FILE FILE;
1.1.1.5 ! root       85: #endif
1.1       root       86: extern int fprintf(FILE *, const char *, ...);
1.1.1.5 ! root       87: extern int fputs(const char *, FILE *);
1.1       root       88: extern int printf(const char *, ...);
                     89: #undef NULL
                     90: #define NULL 0
                     91: 
1.1.1.5 ! root       92: #if defined(__i386__)
1.1       root       93: #define AREG0 "ebp"
                     94: #define AREG1 "ebx"
                     95: #define AREG2 "esi"
                     96: #define AREG3 "edi"
1.1.1.5 ! root       97: #elif defined(__x86_64__)
        !            98: #define AREG0 "r14"
        !            99: #define AREG1 "r15"
1.1       root      100: #define AREG2 "r12"
                    101: #define AREG3 "r13"
1.1.1.5 ! root      102: //#define AREG4 "rbp"
        !           103: //#define AREG5 "rbx"
        !           104: #elif defined(__powerpc__)
1.1       root      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
1.1.1.5 ! root      122: #elif defined(__arm__)
1.1       root      123: #define AREG0 "r7"
                    124: #define AREG1 "r4"
                    125: #define AREG2 "r5"
                    126: #define AREG3 "r6"
1.1.1.5 ! root      127: #elif defined(__mips__)
        !           128: #define AREG0 "fp"
1.1       root      129: #define AREG1 "s0"
                    130: #define AREG2 "s1"
                    131: #define AREG3 "s2"
1.1.1.5 ! root      132: #define AREG4 "s3"
        !           133: #define AREG5 "s4"
        !           134: #define AREG6 "s5"
        !           135: #define AREG7 "s6"
        !           136: #define AREG8 "s7"
        !           137: #elif defined(__sparc__)
1.1.1.3   root      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
1.1       root      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"
1.1.1.3   root      163: #endif
                    164: #endif
1.1       root      165: #define USE_FP_CONVERT
1.1.1.5 ! root      166: #elif defined(__s390__)
1.1       root      167: #define AREG0 "r10"
                    168: #define AREG1 "r7"
                    169: #define AREG2 "r8"
                    170: #define AREG3 "r9"
1.1.1.5 ! root      171: #elif defined(__alpha__)
1.1       root      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"
1.1.1.5 ! root      181: #elif defined(__mc68000)
1.1       root      182: #define AREG0 "%a5"
                    183: #define AREG1 "%a4"
                    184: #define AREG2 "%d7"
                    185: #define AREG3 "%d6"
                    186: #define AREG4 "%d5"
1.1.1.5 ! root      187: #elif defined(__ia64__)
1.1       root      188: #define AREG0 "r7"
                    189: #define AREG1 "r4"
                    190: #define AREG2 "r5"
                    191: #define AREG3 "r6"
1.1.1.5 ! root      192: #else
        !           193: #error unsupported CPU
1.1       root      194: #endif
                    195: 
                    196: /* force GCC to generate only one epilog at the end of the function */
1.1.1.4   root      197: #define FORCE_RET() __asm__ __volatile__("" : : : "memory");
1.1       root      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: 
1.1.1.5 ! root      208: #if defined(__alpha__) || defined(__s390__)
1.1       root      209: /* the symbols are considered non exported so a br immediate is generated */
                    210: #define __hidden __attribute__((visibility("hidden")))
                    211: #else
1.1.1.5 ! root      212: #define __hidden
1.1       root      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; })
1.1.1.5 ! root      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; })
1.1       root      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: 
1.1.1.5 ! root      253: #if defined(__i386__)
1.1       root      254: #define EXIT_TB() asm volatile ("ret")
                    255: #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
1.1.1.5 ! root      256: #elif defined(__x86_64__)
1.1       root      257: #define EXIT_TB() asm volatile ("ret")
                    258: #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
1.1.1.5 ! root      259: #elif defined(__powerpc__)
1.1       root      260: #define EXIT_TB() asm volatile ("blr")
                    261: #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
1.1.1.5 ! root      262: #elif defined(__s390__)
1.1       root      263: #define EXIT_TB() asm volatile ("br %r14")
1.1.1.5 ! root      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__)
1.1       root      266: #define EXIT_TB() asm volatile ("ret")
1.1.1.5 ! root      267: #elif defined(__ia64__)
1.1       root      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)
1.1.1.5 ! root      271: #elif defined(__sparc__)
1.1.1.3   root      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")
1.1.1.5 ! root      274: #elif defined(__arm__)
1.1       root      275: #define EXIT_TB() asm volatile ("b exec_loop")
                    276: #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
1.1.1.5 ! root      277: #elif defined(__mc68000)
1.1       root      278: #define EXIT_TB() asm volatile ("rts")
1.1.1.5 ! root      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
1.1       root      284: #endif
                    285: 
                    286: #endif /* !defined(__DYNGEN_EXEC_H__) */

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