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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 | ||
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 | ||
35 | typedef unsigned char uint8_t; | |
36 | typedef unsigned short uint16_t; | |
37 | typedef unsigned int uint32_t; | |
38 | // Linux/Sparc64 defines uint64_t | |
39 | #if !(defined (__sparc_v9__) && defined(__linux__)) | |
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 | |
46 | #endif | |
47 | ||
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__ | |
52 | typedef signed char int8_t; | |
53 | #endif | |
54 | typedef signed short int16_t; | |
55 | typedef signed int int32_t; | |
56 | // Linux/Sparc64 defines int64_t | |
57 | #if !(defined (__sparc_v9__) && defined(__linux__)) | |
58 | #if defined (__x86_64__) || defined(__ia64) | |
59 | typedef signed long int64_t; | |
60 | #else | |
61 | typedef signed long long int64_t; | |
62 | #endif | |
63 | #endif | |
64 | ||
65 | /* XXX: This may be wrong for 64-bit ILP32 hosts. */ | |
66 | typedef void * host_reg_t; | |
67 | ||
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 | #ifdef _BSD | |
82 | typedef struct __sFILE FILE; | |
83 | #else | |
84 | typedef struct FILE FILE; | |
85 | #endif | |
86 | extern int fprintf(FILE *, const char *, ...); | |
87 | extern int fputs(const char *, FILE *); | |
88 | extern int printf(const char *, ...); | |
89 | #undef NULL | |
90 | #define NULL 0 | |
91 | ||
92 | #if defined(__i386__) | |
93 | #define AREG0 "ebp" | |
94 | #define AREG1 "ebx" | |
95 | #define AREG2 "esi" | |
96 | #define AREG3 "edi" | |
97 | #elif defined(__x86_64__) | |
98 | #define AREG0 "r14" | |
99 | #define AREG1 "r15" | |
100 | #define AREG2 "r12" | |
101 | #define AREG3 "r13" | |
102 | //#define AREG4 "rbp" | |
103 | //#define AREG5 "rbx" | |
104 | #elif defined(__powerpc__) | |
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 | |
122 | #elif defined(__arm__) | |
123 | #define AREG0 "r7" | |
124 | #define AREG1 "r4" | |
125 | #define AREG2 "r5" | |
126 | #define AREG3 "r6" | |
127 | #elif defined(__mips__) | |
128 | #define AREG0 "fp" | |
129 | #define AREG1 "s0" | |
130 | #define AREG2 "s1" | |
131 | #define AREG3 "s2" | |
132 | #define AREG4 "s3" | |
133 | #define AREG5 "s4" | |
134 | #define AREG6 "s5" | |
135 | #define AREG7 "s6" | |
136 | #define AREG8 "s7" | |
137 | #elif defined(__sparc__) | |
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 | |
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" | |
163 | #endif | |
164 | #endif | |
165 | #define USE_FP_CONVERT | |
166 | #elif defined(__s390__) | |
167 | #define AREG0 "r10" | |
168 | #define AREG1 "r7" | |
169 | #define AREG2 "r8" | |
170 | #define AREG3 "r9" | |
171 | #elif defined(__alpha__) | |
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" | |
181 | #elif defined(__mc68000) | |
182 | #define AREG0 "%a5" | |
183 | #define AREG1 "%a4" | |
184 | #define AREG2 "%d7" | |
185 | #define AREG3 "%d6" | |
186 | #define AREG4 "%d5" | |
187 | #elif defined(__ia64__) | |
188 | #define AREG0 "r7" | |
189 | #define AREG1 "r4" | |
190 | #define AREG2 "r5" | |
191 | #define AREG3 "r6" | |
192 | #else | |
193 | #error unsupported CPU | |
194 | #endif | |
195 | ||
196 | /* force GCC to generate only one epilog at the end of the function */ | |
197 | #define FORCE_RET() __asm__ __volatile__("" : : : "memory"); | |
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 | ||
208 | #ifdef __alpha__ | |
209 | /* the symbols are considered non exported so a br immediate is generated */ | |
210 | #define __hidden __attribute__((visibility("hidden"))) | |
211 | #else | |
212 | #define __hidden | |
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; }) | |
227 | #else | |
228 | #if defined(__APPLE__) | |
229 | static int __op_param1, __op_param2, __op_param3; | |
230 | #else | |
231 | extern int __op_param1, __op_param2, __op_param3; | |
232 | #endif | |
233 | #define PARAM1 ((long)(&__op_param1)) | |
234 | #define PARAM2 ((long)(&__op_param2)) | |
235 | #define PARAM3 ((long)(&__op_param3)) | |
236 | #endif /* !defined(__alpha__) */ | |
237 | ||
238 | extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3; | |
239 | ||
240 | #if defined(_WIN32) || defined(__APPLE__) | |
241 | #define ASM_NAME(x) "_" #x | |
242 | #else | |
243 | #define ASM_NAME(x) #x | |
244 | #endif | |
245 | ||
246 | #if defined(__i386__) | |
247 | #define EXIT_TB() asm volatile ("ret") | |
248 | #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n) | |
249 | #elif defined(__x86_64__) | |
250 | #define EXIT_TB() asm volatile ("ret") | |
251 | #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n) | |
252 | #elif defined(__powerpc__) | |
253 | #define EXIT_TB() asm volatile ("blr") | |
254 | #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n) | |
255 | #elif defined(__s390__) | |
256 | #define EXIT_TB() asm volatile ("br %r14") | |
257 | #define GOTO_LABEL_PARAM(n) asm volatile ("bras %r7,8; .long " ASM_NAME(__op_gen_label) #n "; l %r7, 0(%r7); br %r7") | |
258 | #elif defined(__alpha__) | |
259 | #define EXIT_TB() asm volatile ("ret") | |
260 | #elif defined(__ia64__) | |
261 | #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;") | |
262 | #define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \ | |
263 | ASM_NAME(__op_gen_label) #n) | |
264 | #elif defined(__sparc__) | |
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") | |
267 | #elif defined(__arm__) | |
268 | #define EXIT_TB() asm volatile ("b exec_loop") | |
269 | #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n) | |
270 | #elif defined(__mc68000) | |
271 | #define EXIT_TB() asm volatile ("rts") | |
272 | #elif defined(__mips__) | |
273 | #define EXIT_TB() asm volatile ("jr $ra") | |
274 | #define GOTO_LABEL_PARAM(n) asm volatile (".set noat; la $1, " ASM_NAME(__op_gen_label) #n "; jr $1; .set at") | |
275 | #else | |
276 | #error unsupported CPU | |
277 | #endif | |
278 | ||
279 | #endif /* !defined(__DYNGEN_EXEC_H__) */ |