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root/cebix/SheepShaver/src/Unix/sysdeps.h
Revision: 1.16
Committed: 2003-11-28T22:13:49Z (20 years, 7 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.15: +2 -0 lines
Log Message:
Gather stats about compile time. Define KPX_MAX_CPUS to 1 for allowing
allocation of translation cache into .data section on PowerPC.

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sysdeps.h - System dependent definitions for Linux
3     *
4     * SheepShaver (C) 1997-2002 Christian Bauer and Marc Hellwig
5     *
6     * This program is free software; you can redistribute it and/or modify
7     * it under the terms of the GNU General Public License as published by
8     * the Free Software Foundation; either version 2 of the License, or
9     * (at your option) any later version.
10     *
11     * This program 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
14     * GNU General Public License for more details.
15     *
16     * You should have received a copy of the GNU General Public License
17     * along with this program; if not, write to the Free Software
18     * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19     */
20    
21     #ifndef SYSDEPS_H
22     #define SYSDEPS_H
23    
24     #ifndef __STDC__
25     #error "Your compiler is not ANSI. Get a real one."
26     #endif
27    
28     #include "config.h"
29     #include "user_strings_unix.h"
30    
31     #ifndef STDC_HEADERS
32     #error "You don't have ANSI C header files."
33     #endif
34    
35     #ifdef HAVE_UNISTD_H
36     # include <sys/types.h>
37     # include <unistd.h>
38     #endif
39    
40     #include <netinet/in.h>
41     #include <assert.h>
42     #include <stdio.h>
43     #include <stdlib.h>
44     #include <string.h>
45     #include <signal.h>
46    
47     #ifdef HAVE_FCNTL_H
48     # include <fcntl.h>
49     #endif
50    
51     #ifdef TIME_WITH_SYS_TIME
52     # include <sys/time.h>
53     # include <time.h>
54     #else
55     # ifdef HAVE_SYS_TIME_H
56     # include <sys/time.h>
57     # else
58     # include <time.h>
59     # endif
60     #endif
61    
62 gbeauche 1.5 // Define for external components
63     #define SHEEPSHAVER 1
64    
65 gbeauche 1.4 // Mac and host address space are the same
66     #define REAL_ADDRESSING 1
67    
68 gbeauche 1.5 #define POWERPC_ROM 1
69    
70     #if EMULATED_PPC
71 gbeauche 1.7 // Handle interrupts asynchronously?
72     #define ASYNC_IRQ 0
73 gbeauche 1.5 // Mac ROM is write protected when banked memory is used
74     #if REAL_ADDRESSING || DIRECT_ADDRESSING
75     # define ROM_IS_WRITE_PROTECTED 0
76     # define USE_SCRATCHMEM_SUBTERFUGE 1
77 cebix 1.1 #else
78 gbeauche 1.5 # define ROM_IS_WRITE_PROTECTED 1
79     #endif
80 gbeauche 1.9 // Configure PowerPC emulator
81 gbeauche 1.13 #define PPC_CHECK_INTERRUPTS (ASYNC_IRQ ? 0 : 1)
82 gbeauche 1.14 #define PPC_DECODE_CACHE 1
83 gbeauche 1.10 #define PPC_FLIGHT_RECORDER 1
84 gbeauche 1.16 #define PPC_PROFILE_COMPILE_TIME 1
85     #define KPX_MAX_CPUS 1
86 gbeauche 1.5 #else
87     // Mac ROM is write protected
88     #define ROM_IS_WRITE_PROTECTED 1
89     #define USE_SCRATCHMEM_SUBTERFUGE 0
90 cebix 1.1 #endif
91    
92     // Data types
93     typedef unsigned char uint8;
94     typedef signed char int8;
95     #if SIZEOF_SHORT == 2
96     typedef unsigned short uint16;
97     typedef short int16;
98     #elif SIZEOF_INT == 2
99     typedef unsigned int uint16;
100     typedef int int16;
101     #else
102     #error "No 2 byte type, you lose."
103     #endif
104     #if SIZEOF_INT == 4
105     typedef unsigned int uint32;
106     typedef int int32;
107     #elif SIZEOF_LONG == 4
108     typedef unsigned long uint32;
109     typedef long int32;
110     #else
111     #error "No 4 byte type, you lose."
112     #endif
113     #if SIZEOF_LONG == 8
114     typedef unsigned long uint64;
115     typedef long int64;
116 gbeauche 1.3 #define VAL64(a) (a ## l)
117     #define UVAL64(a) (a ## ul)
118 cebix 1.1 #elif SIZEOF_LONG_LONG == 8
119     typedef unsigned long long uint64;
120     typedef long long int64;
121 gbeauche 1.3 #define VAL64(a) (a ## LL)
122     #define UVAL64(a) (a ## uLL)
123 cebix 1.1 #else
124     #error "No 8 byte type, you lose."
125     #endif
126 gbeauche 1.3 #if SIZEOF_VOID_P == 4
127     typedef uint32 uintptr;
128     typedef int32 intptr;
129     #elif SIZEOF_VOID_P == 8
130     typedef uint64 uintptr;
131     typedef int64 intptr;
132     #else
133     #error "Unsupported size of pointer"
134 gbeauche 1.5 #endif
135    
136 gbeauche 1.15 /**
137     * Helper functions to byteswap data
138     **/
139    
140     #if defined(__GNUC__)
141     #if defined(__x86_64__)
142     // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
143     #define opt_bswap_32 do_opt_bswap_32
144     static inline uint32 do_opt_bswap_32(uint32 x)
145     {
146     uint32 v;
147     __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
148     return v;
149     }
150     #endif
151     #endif
152    
153 gbeauche 1.5 #ifdef HAVE_BYTESWAP_H
154     #include <byteswap.h>
155     #endif
156    
157 gbeauche 1.15 #ifdef opt_bswap_16
158     #undef bswap_16
159     #define bswap_16 opt_bswap_16
160     #endif
161 gbeauche 1.5 #ifndef bswap_16
162     #define bswap_16 generic_bswap_16
163     #endif
164    
165     static inline uint16 generic_bswap_16(uint16 x)
166     {
167     return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
168     }
169    
170 gbeauche 1.15 #ifdef opt_bswap_32
171     #undef bswap_32
172     #define bswap_32 opt_bswap_32
173     #endif
174 gbeauche 1.5 #ifndef bswap_32
175     #define bswap_32 generic_bswap_32
176     #endif
177    
178     static inline uint32 generic_bswap_32(uint32 x)
179     {
180     return (((x & 0xff000000) >> 24) |
181     ((x & 0x00ff0000) >> 8) |
182     ((x & 0x0000ff00) << 8) |
183     ((x & 0x000000ff) << 24) );
184     }
185    
186 gbeauche 1.15 #ifdef opt_bswap_64
187     #undef bswap_64
188     #define bswap_64 opt_bswap_64
189     #endif
190 gbeauche 1.5 #ifndef bswap_64
191     #define bswap_64 generic_bswap_64
192     #endif
193    
194     static inline uint64 generic_bswap_64(uint64 x)
195     {
196     return (((x & UVAL64(0xff00000000000000)) >> 56) |
197     ((x & UVAL64(0x00ff000000000000)) >> 40) |
198     ((x & UVAL64(0x0000ff0000000000)) >> 24) |
199     ((x & UVAL64(0x000000ff00000000)) >> 8) |
200     ((x & UVAL64(0x00000000ff000000)) << 8) |
201     ((x & UVAL64(0x0000000000ff0000)) << 24) |
202     ((x & UVAL64(0x000000000000ff00)) << 40) |
203     ((x & UVAL64(0x00000000000000ff)) << 56) );
204     }
205    
206     #ifdef WORDS_BIGENDIAN
207     static inline uint16 tswap16(uint16 x) { return x; }
208     static inline uint32 tswap32(uint32 x) { return x; }
209     static inline uint64 tswap64(uint64 x) { return x; }
210     #else
211     static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
212     static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
213     static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
214 gbeauche 1.3 #endif
215 cebix 1.1
216 gbeauche 1.6 // spin locks
217     #ifdef __GNUC__
218    
219     #ifdef __powerpc__
220     #define HAVE_TEST_AND_SET 1
221     static inline int testandset(int *p)
222     {
223     int ret;
224     __asm__ __volatile__("0: lwarx %0,0,%1 ;"
225     " xor. %0,%3,%0;"
226     " bne 1f;"
227     " stwcx. %2,0,%1;"
228     " bne- 0b;"
229     "1: "
230     : "=&r" (ret)
231     : "r" (p), "r" (1), "r" (0)
232     : "cr0", "memory");
233     return ret;
234     }
235     #endif
236    
237     #ifdef __i386__
238     #define HAVE_TEST_AND_SET 1
239     static inline int testandset(int *p)
240     {
241     char ret;
242     long int readval;
243    
244     __asm__ __volatile__("lock; cmpxchgl %3, %1; sete %0"
245     : "=q" (ret), "=m" (*p), "=a" (readval)
246     : "r" (1), "m" (*p), "a" (0)
247     : "memory");
248     return ret;
249     }
250     #endif
251    
252     #ifdef __s390__
253     #define HAVE_TEST_AND_SET 1
254     static inline int testandset(int *p)
255     {
256     int ret;
257    
258     __asm__ __volatile__("0: cs %0,%1,0(%2)\n"
259     " jl 0b"
260     : "=&d" (ret)
261     : "r" (1), "a" (p), "0" (*p)
262     : "cc", "memory" );
263     return ret;
264     }
265     #endif
266    
267     #ifdef __alpha__
268     #define HAVE_TEST_AND_SET 1
269     static inline int testandset(int *p)
270     {
271     int ret;
272     unsigned long one;
273    
274     __asm__ __volatile__("0: mov 1,%2\n"
275     " ldl_l %0,%1\n"
276     " stl_c %2,%1\n"
277     " beq %2,1f\n"
278     ".subsection 2\n"
279     "1: br 0b\n"
280     ".previous"
281     : "=r" (ret), "=m" (*p), "=r" (one)
282     : "m" (*p));
283     return ret;
284     }
285     #endif
286    
287     #ifdef __sparc__
288     #define HAVE_TEST_AND_SET 1
289     static inline int testandset(int *p)
290     {
291     int ret;
292    
293     __asm__ __volatile__("ldstub [%1], %0"
294     : "=r" (ret)
295     : "r" (p)
296     : "memory");
297    
298     return (ret ? 1 : 0);
299     }
300     #endif
301    
302     #ifdef __arm__
303     #define HAVE_TEST_AND_SET 1
304     static inline int testandset(int *p)
305     {
306     register unsigned int ret;
307     __asm__ __volatile__("swp %0, %1, [%2]"
308     : "=r"(ret)
309     : "0"(1), "r"(p));
310    
311     return ret;
312     }
313     #endif
314    
315     #endif /* __GNUC__ */
316    
317     #if HAVE_TEST_AND_SET
318     #define HAVE_SPINLOCKS 1
319     typedef int spinlock_t;
320    
321 gbeauche 1.8 static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
322 gbeauche 1.6
323     static inline void spin_lock(spinlock_t *lock)
324     {
325     while (testandset(lock));
326     }
327    
328     static inline void spin_unlock(spinlock_t *lock)
329     {
330     *lock = 0;
331     }
332    
333     static inline int spin_trylock(spinlock_t *lock)
334     {
335     return !testandset(lock);
336     }
337     #endif
338    
339 cebix 1.1 // Time data type for Time Manager emulation
340     #ifdef HAVE_CLOCK_GETTIME
341     typedef struct timespec tm_time_t;
342     #else
343     typedef struct timeval tm_time_t;
344     #endif
345    
346 cebix 1.2 // Setup pthread attributes
347     extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
348    
349 cebix 1.1 // Various definitions
350     typedef struct rgb_color {
351     uint8 red;
352     uint8 green;
353     uint8 blue;
354     uint8 alpha;
355     } rgb_color;
356    
357     // Macro for calling MacOS routines
358     #define CallMacOS(type, tvect) call_macos((uint32)tvect)
359     #define CallMacOS1(type, tvect, arg1) call_macos1((uint32)tvect, (uint32)arg1)
360     #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uint32)tvect, (uint32)arg1, (uint32)arg2)
361     #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3)
362     #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4)
363     #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5)
364     #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6)
365     #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uint32)tvect, (uint32)arg1, (uint32)arg2, (uint32)arg3, (uint32)arg4, (uint32)arg5, (uint32)arg6, (uint32)arg7)
366    
367 gbeauche 1.3 #ifdef __cplusplus
368     extern "C" {
369     #endif
370     extern uint32 call_macos(uint32 tvect);
371     extern uint32 call_macos1(uint32 tvect, uint32 arg1);
372     extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
373     extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
374     extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
375     extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
376     extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
377     extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
378     #ifdef __cplusplus
379     }
380     #endif
381 cebix 1.1
382     #endif