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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 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 #include <stdint.h> 35 36 #ifdef __OpenBSD__ 37 #include <sys/types.h> 38 #endif 39 40 /* XXX: This may be wrong for 64-bit ILP32 hosts. */ 41 typedef void * host_reg_t; 42 43 #ifdef HOST_BSD 44 typedef struct __sFILE FILE; 45 #else 46 typedef struct FILE FILE; 47 #endif 48 extern int fprintf(FILE *, const char *, ...); 49 extern int fputs(const char *, FILE *); 50 extern int printf(const char *, ...); 51 #undef NULL 52 #define NULL 0 53 54 #if defined(__i386__) 55 #define AREG0 "ebp" 56 #define AREG1 "ebx" 57 #define AREG2 "esi" 58 #elif defined(__x86_64__) 59 #define AREG0 "r14" 60 #define AREG1 "r15" 61 #define AREG2 "r12" 62 #elif defined(_ARCH_PPC) 63 #define AREG0 "r27" 64 #define AREG1 "r24" 65 #define AREG2 "r25" 66 #elif defined(__arm__) 67 #define AREG0 "r7" 68 #define AREG1 "r4" 69 #define AREG2 "r5" 70 #elif defined(__hppa__) 71 #define AREG0 "r17" 72 #define AREG1 "r14" 73 #define AREG2 "r15" 74 #elif defined(__mips__) 75 #define AREG0 "fp" 76 #define AREG1 "s0" 77 #define AREG2 "s1" 78 #elif defined(__sparc__) 79 #ifdef HOST_SOLARIS 80 #define AREG0 "g2" 81 #define AREG1 "g3" 82 #define AREG2 "g4" 83 #else 84 #ifdef __sparc_v9__ 85 #define AREG0 "g5" 86 #define AREG1 "g6" 87 #define AREG2 "g7" 88 #else 89 #define AREG0 "g6" 90 #define AREG1 "g1" 91 #define AREG2 "g2" 92 #endif 93 #endif 94 #elif defined(__s390__) 95 #define AREG0 "r10" 96 #define AREG1 "r7" 97 #define AREG2 "r8" 98 #elif defined(__alpha__) 99 /* Note $15 is the frame pointer, so anything in op-i386.c that would 100 require a frame pointer, like alloca, would probably loose. */ 101 #define AREG0 "$15" 102 #define AREG1 "$9" 103 #define AREG2 "$10" 104 #elif defined(__mc68000) 105 #define AREG0 "%a5" 106 #define AREG1 "%a4" 107 #define AREG2 "%d7" 108 #elif defined(__ia64__) 109 #define AREG0 "r7" 110 #define AREG1 "r4" 111 #define AREG2 "r5" 112 #else 113 #error unsupported CPU 114 #endif 115 116 #define xglue(x, y) x ## y 117 #define glue(x, y) xglue(x, y) 118 #define stringify(s) tostring(s) 119 #define tostring(s) #s 120 121 /* The return address may point to the start of the next instruction. 122 Subtracting one gets us the call instruction itself. */ 123 #if defined(__s390__) 124 # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1)) 125 #elif defined(__arm__) 126 /* Thumb return addresses have the low bit set, so we need to subtract two. 127 This is still safe in ARM mode because instructions are 4 bytes. */ 128 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2)) 129 #else 130 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1)) 131 #endif 132 133 #endif /* !defined(__DYNGEN_EXEC_H__) */ 134
