summaryrefslogtreecommitdiff
blob: 37c593e29197b94c90b0341830b77d4129ceb0d6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
/*
 *  dyngen defines for micro operation code
 *
 *  Copyright (c) 2003 Fabrice Bellard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#if !defined(__DYNGEN_EXEC_H__)
#define __DYNGEN_EXEC_H__

/* prevent Solaris from trying to typedef FILE in gcc's
   include/floatingpoint.h which will conflict with the
   definition down below */
#ifdef __sun__
#define _FILEDEFED
#endif

/* NOTE: standard headers should be used with special care at this
   point because host CPU registers are used as global variables. Some
   host headers do not allow that. */
#include <stddef.h>

typedef unsigned char uint8_t;
typedef unsigned short uint16_t;
typedef unsigned int uint32_t;
// Linux/Sparc64 defines uint64_t
#if !(defined (__sparc_v9__) && defined(__linux__))
/* XXX may be done for all 64 bits targets ? */
#if defined (__x86_64__) || defined(__ia64)
typedef unsigned long uint64_t;
#else
typedef unsigned long long uint64_t;
#endif
#endif

/* if Solaris/__sun__, don't typedef int8_t, as it will be typedef'd
   prior to this and will cause an error in compliation, conflicting
   with /usr/include/sys/int_types.h, line 75 */
#ifndef __sun__
typedef signed char int8_t;
#endif
typedef signed short int16_t;
typedef signed int int32_t;
// Linux/Sparc64 defines int64_t
#if !(defined (__sparc_v9__) && defined(__linux__))
#if defined (__x86_64__) || defined(__ia64)
typedef signed long int64_t;
#else
typedef signed long long int64_t;
#endif
#endif

/* XXX: This may be wrong for 64-bit ILP32 hosts.  */
typedef void * host_reg_t;

#define INT8_MIN		(-128)
#define INT16_MIN		(-32767-1)
#define INT32_MIN		(-2147483647-1)
#define INT64_MIN		(-(int64_t)(9223372036854775807)-1)
#define INT8_MAX		(127)
#define INT16_MAX		(32767)
#define INT32_MAX		(2147483647)
#define INT64_MAX		((int64_t)(9223372036854775807))
#define UINT8_MAX		(255)
#define UINT16_MAX		(65535)
#define UINT32_MAX		(4294967295U)
#define UINT64_MAX		((uint64_t)(18446744073709551615))

#ifdef _BSD
typedef struct __sFILE FILE;
#else
typedef struct FILE FILE;
#endif
extern int fprintf(FILE *, const char *, ...);
extern int fputs(const char *, FILE *);
extern int printf(const char *, ...);
#undef NULL
#define NULL 0

#if defined(__i386__)
#define AREG0 "ebp"
#define AREG1 "ebx"
#define AREG2 "esi"
#define AREG3 "edi"
#elif defined(__x86_64__)
#define AREG0 "r14"
#define AREG1 "r15"
#define AREG2 "r12"
#define AREG3 "r13"
//#define AREG4 "rbp"
//#define AREG5 "rbx"
#elif defined(__powerpc__)
#define AREG0 "r27"
#define AREG1 "r24"
#define AREG2 "r25"
#define AREG3 "r26"
/* XXX: suppress this hack */
#if defined(CONFIG_USER_ONLY)
#define AREG4 "r16"
#define AREG5 "r17"
#define AREG6 "r18"
#define AREG7 "r19"
#define AREG8 "r20"
#define AREG9 "r21"
#define AREG10 "r22"
#define AREG11 "r23"
#endif
#define USE_INT_TO_FLOAT_HELPERS
#define BUGGY_GCC_DIV64
#elif defined(__arm__)
#define AREG0 "r7"
#define AREG1 "r4"
#define AREG2 "r5"
#define AREG3 "r6"
#elif defined(__mips__)
#define AREG0 "fp"
#define AREG1 "s0"
#define AREG2 "s1"
#define AREG3 "s2"
#define AREG4 "s3"
#define AREG5 "s4"
#define AREG6 "s5"
#define AREG7 "s6"
#define AREG8 "s7"
#elif defined(__sparc__)
#ifdef HOST_SOLARIS
#define AREG0 "g2"
#define AREG1 "g3"
#define AREG2 "g4"
#define AREG3 "g5"
#define AREG4 "g6"
#else
#ifdef __sparc_v9__
#define AREG0 "g1"
#define AREG1 "g4"
#define AREG2 "g5"
#define AREG3 "g7"
#else
#define AREG0 "g6"
#define AREG1 "g1"
#define AREG2 "g2"
#define AREG3 "g3"
#define AREG4 "l0"
#define AREG5 "l1"
#define AREG6 "l2"
#define AREG7 "l3"
#define AREG8 "l4"
#define AREG9 "l5"
#define AREG10 "l6"
#define AREG11 "l7"
#endif
#endif
#define USE_FP_CONVERT
#elif defined(__s390__)
#define AREG0 "r10"
#define AREG1 "r7"
#define AREG2 "r8"
#define AREG3 "r9"
#elif defined(__alpha__)
/* Note $15 is the frame pointer, so anything in op-i386.c that would
   require a frame pointer, like alloca, would probably loose.  */
#define AREG0 "$15"
#define AREG1 "$9"
#define AREG2 "$10"
#define AREG3 "$11"
#define AREG4 "$12"
#define AREG5 "$13"
#define AREG6 "$14"
#elif defined(__mc68000)
#define AREG0 "%a5"
#define AREG1 "%a4"
#define AREG2 "%d7"
#define AREG3 "%d6"
#define AREG4 "%d5"
#elif defined(__ia64__)
#define AREG0 "r7"
#define AREG1 "r4"
#define AREG2 "r5"
#define AREG3 "r6"
#else
#error unsupported CPU
#endif

/* force GCC to generate only one epilog at the end of the function */
#define FORCE_RET() __asm__ __volatile__("" : : : "memory");

#ifndef OPPROTO
#define OPPROTO
#endif

#define xglue(x, y) x ## y
#define glue(x, y) xglue(x, y)
#define stringify(s)	tostring(s)
#define tostring(s)	#s

#ifdef __alpha__
/* the symbols are considered non exported so a br immediate is generated */
#define __hidden __attribute__((visibility("hidden")))
#else
#define __hidden
#endif

#if defined(__alpha__)
/* Suggested by Richard Henderson. This will result in code like
        ldah $0,__op_param1($29)        !gprelhigh
        lda $0,__op_param1($0)          !gprellow
   We can then conveniently change $29 to $31 and adapt the offsets to
   emit the appropriate constant.  */
extern int __op_param1 __hidden;
extern int __op_param2 __hidden;
extern int __op_param3 __hidden;
#define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; })
#define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; })
#define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; })
#else
#if defined(__APPLE__)
static int __op_param1, __op_param2, __op_param3;
#else
extern int __op_param1, __op_param2, __op_param3;
#endif
#define PARAM1 ((long)(&__op_param1))
#define PARAM2 ((long)(&__op_param2))
#define PARAM3 ((long)(&__op_param3))
#endif /* !defined(__alpha__) */

extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3;

#if defined(_WIN32) || defined(__APPLE__)
#define ASM_NAME(x) "_" #x
#else
#define ASM_NAME(x) #x
#endif

#if defined(__i386__)
#define EXIT_TB() asm volatile ("ret")
#define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
#elif defined(__x86_64__)
#define EXIT_TB() asm volatile ("ret")
#define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n)
#elif defined(__powerpc__)
#define EXIT_TB() asm volatile ("blr")
#define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
#elif defined(__s390__)
#define EXIT_TB() asm volatile ("br %r14")
#define GOTO_LABEL_PARAM(n) asm volatile ("bras %r7,8; .long " ASM_NAME(__op_gen_label) #n "; l %r7, 0(%r7); br %r7")
#elif defined(__alpha__)
#define EXIT_TB() asm volatile ("ret")
#elif defined(__ia64__)
#define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;")
#define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \
					  ASM_NAME(__op_gen_label) #n)
#elif defined(__sparc__)
#define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0; nop")
#define GOTO_LABEL_PARAM(n) asm volatile ("ba " ASM_NAME(__op_gen_label) #n ";nop")
#elif defined(__arm__)
#define EXIT_TB() asm volatile ("b exec_loop")
#define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n)
#elif defined(__mc68000)
#define EXIT_TB() asm volatile ("rts")
#elif defined(__mips__)
#define EXIT_TB() asm volatile ("jr $ra")
#define GOTO_LABEL_PARAM(n) asm volatile (".set noat; la $1, " ASM_NAME(__op_gen_label) #n "; jr $1; .set at")
#else
#error unsupported CPU
#endif

#endif /* !defined(__DYNGEN_EXEC_H__) */