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root/cebix/SheepShaver/src/Unix/sysdeps.h
Revision: 1.50
Committed: 2005-11-30T07:24:53Z (18 years, 6 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
Changes since 1.49: +0 -2 lines
Log Message:
Always use the complete non-stubs Ethernet driver (XXX probably do that
only in Emulated PPC mode for performance reasons?)

File Contents

# User Rev Content
1 cebix 1.1 /*
2     * sysdeps.h - System dependent definitions for Linux
3     *
4 gbeauche 1.36 * SheepShaver (C) 1997-2005 Christian Bauer and Marc Hellwig
5 cebix 1.1 *
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 gbeauche 1.37 #include <stddef.h>
45 cebix 1.1 #include <string.h>
46     #include <signal.h>
47    
48 gbeauche 1.24 #ifdef HAVE_PTHREADS
49     # include <pthread.h>
50     #endif
51    
52 cebix 1.1 #ifdef HAVE_FCNTL_H
53     # include <fcntl.h>
54     #endif
55    
56     #ifdef TIME_WITH_SYS_TIME
57     # include <sys/time.h>
58     # include <time.h>
59     #else
60     # ifdef HAVE_SYS_TIME_H
61     # include <sys/time.h>
62     # else
63     # include <time.h>
64     # endif
65     #endif
66    
67 gbeauche 1.37 // Fix offsetof() on FreeBSD and GCC >= 3.4
68     #if defined(__FreeBSD__) && defined(__cplusplus)
69     #undef offsetof
70     /* The cast to "char &" below avoids problems with user-defined
71     "operator &", which can appear in a POD type. */
72     #define offsetof(TYPE, MEMBER) \
73     (__offsetof__ (reinterpret_cast <size_t> \
74     (&reinterpret_cast <char &> \
75     (static_cast<TYPE *> (0)->MEMBER))))
76     #endif
77    
78 gbeauche 1.5 // Define for external components
79     #define SHEEPSHAVER 1
80    
81 gbeauche 1.34 // Always use Real Addressing mode on native architectures
82     // Otherwise, use Direct Addressing mode if NATMEM_OFFSET is set
83 gbeauche 1.35 #if !defined(EMULATED_PPC)
84 gbeauche 1.4 #define REAL_ADDRESSING 1
85 gbeauche 1.39 #include "ppc_asm.tmpl"
86 gbeauche 1.35 #elif defined(NATMEM_OFFSET)
87     #define DIRECT_ADDRESSING 1
88 gbeauche 1.34 #else
89 gbeauche 1.35 #define REAL_ADDRESSING 1
90 gbeauche 1.34 #endif
91 gbeauche 1.4
92 gbeauche 1.48 // Always use the complete non-stubs Ethernet driver
93     #define USE_ETHER_FULL_DRIVER 1
94    
95 gbeauche 1.5 #define POWERPC_ROM 1
96    
97     #if EMULATED_PPC
98     // Mac ROM is write protected when banked memory is used
99     #if REAL_ADDRESSING || DIRECT_ADDRESSING
100     # define ROM_IS_WRITE_PROTECTED 0
101     # define USE_SCRATCHMEM_SUBTERFUGE 1
102 cebix 1.1 #else
103 gbeauche 1.5 # define ROM_IS_WRITE_PROTECTED 1
104     #endif
105 gbeauche 1.9 // Configure PowerPC emulator
106 gbeauche 1.29 #define PPC_REENTRANT_JIT 1
107 gbeauche 1.30 #define PPC_CHECK_INTERRUPTS 1
108 gbeauche 1.14 #define PPC_DECODE_CACHE 1
109 gbeauche 1.10 #define PPC_FLIGHT_RECORDER 1
110 gbeauche 1.17 #define PPC_PROFILE_COMPILE_TIME 0
111     #define PPC_PROFILE_GENERIC_CALLS 0
112 gbeauche 1.16 #define KPX_MAX_CPUS 1
113 gbeauche 1.33 #if ENABLE_DYNGEN
114     #define PPC_ENABLE_JIT 1
115     #endif
116 gbeauche 1.28 #if defined(__i386__)
117     #define DYNGEN_ASM_OPTS 1
118     #endif
119 gbeauche 1.5 #else
120     // Mac ROM is write protected
121     #define ROM_IS_WRITE_PROTECTED 1
122     #define USE_SCRATCHMEM_SUBTERFUGE 0
123 cebix 1.1 #endif
124    
125     // Data types
126     typedef unsigned char uint8;
127     typedef signed char int8;
128     #if SIZEOF_SHORT == 2
129     typedef unsigned short uint16;
130     typedef short int16;
131     #elif SIZEOF_INT == 2
132     typedef unsigned int uint16;
133     typedef int int16;
134     #else
135     #error "No 2 byte type, you lose."
136     #endif
137     #if SIZEOF_INT == 4
138     typedef unsigned int uint32;
139     typedef int int32;
140     #elif SIZEOF_LONG == 4
141     typedef unsigned long uint32;
142     typedef long int32;
143     #else
144     #error "No 4 byte type, you lose."
145     #endif
146     #if SIZEOF_LONG == 8
147     typedef unsigned long uint64;
148     typedef long int64;
149 gbeauche 1.3 #define VAL64(a) (a ## l)
150     #define UVAL64(a) (a ## ul)
151 cebix 1.1 #elif SIZEOF_LONG_LONG == 8
152     typedef unsigned long long uint64;
153     typedef long long int64;
154 gbeauche 1.3 #define VAL64(a) (a ## LL)
155     #define UVAL64(a) (a ## uLL)
156 cebix 1.1 #else
157     #error "No 8 byte type, you lose."
158     #endif
159 gbeauche 1.3 #if SIZEOF_VOID_P == 4
160     typedef uint32 uintptr;
161     typedef int32 intptr;
162     #elif SIZEOF_VOID_P == 8
163     typedef uint64 uintptr;
164     typedef int64 intptr;
165     #else
166     #error "Unsupported size of pointer"
167 gbeauche 1.5 #endif
168    
169 gbeauche 1.15 /**
170     * Helper functions to byteswap data
171     **/
172    
173     #if defined(__GNUC__)
174 gbeauche 1.23 #if defined(__x86_64__) || defined(__i386__)
175 gbeauche 1.15 // Linux/AMD64 currently has no asm optimized bswap_32() in <byteswap.h>
176     #define opt_bswap_32 do_opt_bswap_32
177     static inline uint32 do_opt_bswap_32(uint32 x)
178     {
179     uint32 v;
180     __asm__ __volatile__ ("bswap %0" : "=r" (v) : "0" (x));
181     return v;
182     }
183     #endif
184     #endif
185    
186 gbeauche 1.5 #ifdef HAVE_BYTESWAP_H
187     #include <byteswap.h>
188     #endif
189    
190 gbeauche 1.15 #ifdef opt_bswap_16
191     #undef bswap_16
192     #define bswap_16 opt_bswap_16
193     #endif
194 gbeauche 1.5 #ifndef bswap_16
195     #define bswap_16 generic_bswap_16
196     #endif
197    
198     static inline uint16 generic_bswap_16(uint16 x)
199     {
200     return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
201     }
202    
203 gbeauche 1.15 #ifdef opt_bswap_32
204     #undef bswap_32
205     #define bswap_32 opt_bswap_32
206     #endif
207 gbeauche 1.5 #ifndef bswap_32
208     #define bswap_32 generic_bswap_32
209     #endif
210    
211     static inline uint32 generic_bswap_32(uint32 x)
212     {
213     return (((x & 0xff000000) >> 24) |
214     ((x & 0x00ff0000) >> 8) |
215     ((x & 0x0000ff00) << 8) |
216     ((x & 0x000000ff) << 24) );
217     }
218 gbeauche 1.23
219     #if defined(__i386__)
220     #define opt_bswap_64 do_opt_bswap_64
221     static inline uint64 do_opt_bswap_64(uint64 x)
222     {
223     return (bswap_32(x >> 32) | (((uint64)bswap_32((uint32)x)) << 32));
224     }
225     #endif
226 gbeauche 1.5
227 gbeauche 1.15 #ifdef opt_bswap_64
228     #undef bswap_64
229     #define bswap_64 opt_bswap_64
230     #endif
231 gbeauche 1.5 #ifndef bswap_64
232     #define bswap_64 generic_bswap_64
233     #endif
234    
235     static inline uint64 generic_bswap_64(uint64 x)
236     {
237     return (((x & UVAL64(0xff00000000000000)) >> 56) |
238     ((x & UVAL64(0x00ff000000000000)) >> 40) |
239     ((x & UVAL64(0x0000ff0000000000)) >> 24) |
240     ((x & UVAL64(0x000000ff00000000)) >> 8) |
241     ((x & UVAL64(0x00000000ff000000)) << 8) |
242     ((x & UVAL64(0x0000000000ff0000)) << 24) |
243     ((x & UVAL64(0x000000000000ff00)) << 40) |
244     ((x & UVAL64(0x00000000000000ff)) << 56) );
245     }
246    
247     #ifdef WORDS_BIGENDIAN
248     static inline uint16 tswap16(uint16 x) { return x; }
249     static inline uint32 tswap32(uint32 x) { return x; }
250     static inline uint64 tswap64(uint64 x) { return x; }
251     #else
252     static inline uint16 tswap16(uint16 x) { return bswap_16(x); }
253     static inline uint32 tswap32(uint32 x) { return bswap_32(x); }
254     static inline uint64 tswap64(uint64 x) { return bswap_64(x); }
255 gbeauche 1.3 #endif
256 cebix 1.1
257 gbeauche 1.6 // spin locks
258     #ifdef __GNUC__
259    
260 gbeauche 1.22 #if defined(__powerpc__) || defined(__ppc__)
261 gbeauche 1.6 #define HAVE_TEST_AND_SET 1
262 gbeauche 1.20 static inline int testandset(volatile int *p)
263 gbeauche 1.6 {
264     int ret;
265 gbeauche 1.22 __asm__ __volatile__("0: lwarx %0,0,%1\n"
266     " xor. %0,%3,%0\n"
267     " bne 1f\n"
268     " stwcx. %2,0,%1\n"
269     " bne- 0b\n"
270 gbeauche 1.6 "1: "
271     : "=&r" (ret)
272     : "r" (p), "r" (1), "r" (0)
273     : "cr0", "memory");
274     return ret;
275     }
276     #endif
277    
278 gbeauche 1.45 #if defined(__i386__) || defined(__x86_64__)
279 gbeauche 1.6 #define HAVE_TEST_AND_SET 1
280 gbeauche 1.20 static inline int testandset(volatile int *p)
281 gbeauche 1.6 {
282 gbeauche 1.31 long int ret;
283 gbeauche 1.20 /* Note: the "xchg" instruction does not need a "lock" prefix */
284 gbeauche 1.31 __asm__ __volatile__("xchgl %k0, %1"
285     : "=r" (ret), "=m" (*p)
286 gbeauche 1.20 : "0" (1), "m" (*p)
287 gbeauche 1.6 : "memory");
288     return ret;
289     }
290     #endif
291    
292     #ifdef __s390__
293     #define HAVE_TEST_AND_SET 1
294 gbeauche 1.20 static inline int testandset(volatile int *p)
295 gbeauche 1.6 {
296     int ret;
297    
298     __asm__ __volatile__("0: cs %0,%1,0(%2)\n"
299     " jl 0b"
300     : "=&d" (ret)
301     : "r" (1), "a" (p), "0" (*p)
302     : "cc", "memory" );
303     return ret;
304     }
305     #endif
306    
307     #ifdef __alpha__
308     #define HAVE_TEST_AND_SET 1
309 gbeauche 1.20 static inline int testandset(volatile int *p)
310 gbeauche 1.6 {
311     int ret;
312     unsigned long one;
313    
314     __asm__ __volatile__("0: mov 1,%2\n"
315     " ldl_l %0,%1\n"
316     " stl_c %2,%1\n"
317     " beq %2,1f\n"
318     ".subsection 2\n"
319     "1: br 0b\n"
320     ".previous"
321     : "=r" (ret), "=m" (*p), "=r" (one)
322     : "m" (*p));
323     return ret;
324     }
325     #endif
326    
327     #ifdef __sparc__
328     #define HAVE_TEST_AND_SET 1
329 gbeauche 1.20 static inline int testandset(volatile int *p)
330 gbeauche 1.6 {
331     int ret;
332    
333     __asm__ __volatile__("ldstub [%1], %0"
334     : "=r" (ret)
335     : "r" (p)
336     : "memory");
337    
338     return (ret ? 1 : 0);
339     }
340     #endif
341    
342     #ifdef __arm__
343     #define HAVE_TEST_AND_SET 1
344 gbeauche 1.20 static inline int testandset(volatile int *p)
345 gbeauche 1.6 {
346     register unsigned int ret;
347     __asm__ __volatile__("swp %0, %1, [%2]"
348     : "=r"(ret)
349     : "0"(1), "r"(p));
350    
351     return ret;
352     }
353     #endif
354    
355     #endif /* __GNUC__ */
356    
357 gbeauche 1.20 typedef volatile int spinlock_t;
358 gbeauche 1.6
359 gbeauche 1.8 static const spinlock_t SPIN_LOCK_UNLOCKED = 0;
360 gbeauche 1.6
361 gbeauche 1.44 #if defined(HAVE_TEST_AND_SET) && defined(HAVE_PTHREADS)
362     // There is nothing to lock if we are not in an multithreaded environment
363 gbeauche 1.32 #define HAVE_SPINLOCKS 1
364 gbeauche 1.6 static inline void spin_lock(spinlock_t *lock)
365     {
366     while (testandset(lock));
367     }
368    
369     static inline void spin_unlock(spinlock_t *lock)
370     {
371     *lock = 0;
372     }
373    
374     static inline int spin_trylock(spinlock_t *lock)
375     {
376     return !testandset(lock);
377     }
378 gbeauche 1.32 #else
379     static inline void spin_lock(spinlock_t *lock)
380     {
381     }
382    
383     static inline void spin_unlock(spinlock_t *lock)
384     {
385     }
386    
387     static inline int spin_trylock(spinlock_t *lock)
388     {
389     return 1;
390     }
391 gbeauche 1.6 #endif
392    
393 cebix 1.1 // Time data type for Time Manager emulation
394     #ifdef HAVE_CLOCK_GETTIME
395     typedef struct timespec tm_time_t;
396     #else
397     typedef struct timeval tm_time_t;
398     #endif
399    
400 gbeauche 1.42 /* Define codes for all the float formats that we know of.
401     * Though we only handle IEEE format. */
402     #define UNKNOWN_FLOAT_FORMAT 0
403     #define IEEE_FLOAT_FORMAT 1
404     #define VAX_FLOAT_FORMAT 2
405     #define IBM_FLOAT_FORMAT 3
406     #define C4X_FLOAT_FORMAT 4
407    
408 gbeauche 1.40 // High-precision timing
409 gbeauche 1.46 #if defined(HAVE_PTHREADS) && defined(HAVE_CLOCK_NANOSLEEP)
410 gbeauche 1.40 #define PRECISE_TIMING 1
411     #define PRECISE_TIMING_POSIX 1
412     #endif
413    
414 gbeauche 1.18 // Timing functions
415     extern uint64 GetTicks_usec(void);
416     extern void Delay_usec(uint32 usec);
417    
418 gbeauche 1.43 #ifdef HAVE_PTHREADS
419 cebix 1.2 // Setup pthread attributes
420     extern void Set_pthread_attr(pthread_attr_t *attr, int priority);
421 gbeauche 1.24 #endif
422 cebix 1.2
423 cebix 1.1 // Various definitions
424     typedef struct rgb_color {
425     uint8 red;
426     uint8 green;
427     uint8 blue;
428     uint8 alpha;
429     } rgb_color;
430    
431 gbeauche 1.19 // X11 display fast locks
432 gbeauche 1.44 #if defined(HAVE_PTHREADS)
433     #define X11_LOCK_TYPE pthread_mutex_t
434     #define X11_LOCK_INIT PTHREAD_MUTEX_INITIALIZER
435     #define XDisplayLock() pthread_mutex_lock(&x_display_lock);
436     #define XDisplayUnlock() pthread_mutex_unlock(&x_display_lock);
437     #elif defined(HAVE_SPINLOCKS)
438 gbeauche 1.19 #define X11_LOCK_TYPE spinlock_t
439     #define X11_LOCK_INIT SPIN_LOCK_UNLOCKED
440     #define XDisplayLock() spin_lock(&x_display_lock)
441     #define XDisplayUnlock() spin_unlock(&x_display_lock)
442     #else
443     #define XDisplayLock()
444     #define XDisplayUnlock()
445     #endif
446     #ifdef X11_LOCK_TYPE
447     extern X11_LOCK_TYPE x_display_lock;
448     #endif
449    
450 cebix 1.1 // Macro for calling MacOS routines
451 gbeauche 1.34 #define CallMacOS(type, tvect) call_macos((uintptr)tvect)
452     #define CallMacOS1(type, tvect, arg1) call_macos1((uintptr)tvect, (uintptr)arg1)
453     #define CallMacOS2(type, tvect, arg1, arg2) call_macos2((uintptr)tvect, (uintptr)arg1, (uintptr)arg2)
454     #define CallMacOS3(type, tvect, arg1, arg2, arg3) call_macos3((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3)
455     #define CallMacOS4(type, tvect, arg1, arg2, arg3, arg4) call_macos4((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4)
456     #define CallMacOS5(type, tvect, arg1, arg2, arg3, arg4, arg5) call_macos5((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5)
457     #define CallMacOS6(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6) call_macos6((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6)
458     #define CallMacOS7(type, tvect, arg1, arg2, arg3, arg4, arg5, arg6, arg7) call_macos7((uintptr)tvect, (uintptr)arg1, (uintptr)arg2, (uintptr)arg3, (uintptr)arg4, (uintptr)arg5, (uintptr)arg6, (uintptr)arg7)
459 cebix 1.1
460 gbeauche 1.3 #ifdef __cplusplus
461     extern "C" {
462     #endif
463     extern uint32 call_macos(uint32 tvect);
464     extern uint32 call_macos1(uint32 tvect, uint32 arg1);
465     extern uint32 call_macos2(uint32 tvect, uint32 arg1, uint32 arg2);
466     extern uint32 call_macos3(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3);
467     extern uint32 call_macos4(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4);
468     extern uint32 call_macos5(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5);
469     extern uint32 call_macos6(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6);
470     extern uint32 call_macos7(uint32 tvect, uint32 arg1, uint32 arg2, uint32 arg3, uint32 arg4, uint32 arg5, uint32 arg6, uint32 arg7);
471     #ifdef __cplusplus
472     }
473     #endif
474 cebix 1.1
475     #endif