_solaris.h@ 4885

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Solaris
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1	/* -- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -- */
2	/* *** BEGIN LICENSE BLOCK ***
3	* Version: MPL 1.1/GPL 2.0/LGPL 2.1
4	*
5	* The contents of this file are subject to the Mozilla Public License Version
6	* 1.1 (the "License"); you may not use this file except in compliance with
7	* the License. You may obtain a copy of the License at
8	* http://www.mozilla.org/MPL/
9	*
10	* Software distributed under the License is distributed on an "AS IS" basis,
11	* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12	* for the specific language governing rights and limitations under the
13	* License.
14	*
15	* The Original Code is the Netscape Portable Runtime (NSPR).
16	*
17	* The Initial Developer of the Original Code is
18	* Netscape Communications Corporation.
19	* Portions created by the Initial Developer are Copyright (C) 1998-2000
20	* the Initial Developer. All Rights Reserved.
21	*
22	* Contributor(s):
23	*
24	* Alternatively, the contents of this file may be used under the terms of
25	* either the GNU General Public License Version 2 or later (the "GPL"), or
26	* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27	* in which case the provisions of the GPL or the LGPL are applicable instead
28	* of those above. If you wish to allow use of your version of this file only
29	* under the terms of either the GPL or the LGPL, and not to allow others to
30	* use your version of this file under the terms of the MPL, indicate your
31	* decision by deleting the provisions above and replace them with the notice
32	* and other provisions required by the GPL or the LGPL. If you do not delete
33	* the provisions above, a recipient may use your version of this file under
34	* the terms of any one of the MPL, the GPL or the LGPL.
35	*
36	* *** END LICENSE BLOCK *** */
37
38	#ifndef nspr_solaris_defs_h___
39	#define nspr_solaris_defs_h___
40
41	/*
42	* Internal configuration macros
43	*/
44
45	#define PR_LINKER_ARCH "solaris"
46	#define _PR_SI_SYSNAME "SOLARIS"
47	#ifdef sparc
48	#define _PR_SI_ARCHITECTURE "sparc"
49	#elif defined(i386)
50	#define _PR_SI_ARCHITECTURE "x86"
51	#else
52	#error unknown processor
53	#endif
54	#define PR_DLL_SUFFIX ".so"
55
56	#define _PR_VMBASE 0x30000000
57	#define _PR_STACK_VMBASE 0x50000000
58	#define _MD_DEFAULT_STACK_SIZE (2*65536L)
59	#define _MD_MMAP_FLAGS MAP_SHARED
60
61	#undef HAVE_STACK_GROWING_UP
62
63	#ifndef HAVE_WEAK_IO_SYMBOLS
64	#define HAVE_WEAK_IO_SYMBOLS
65	#endif
66
67	#undef HAVE_WEAK_MALLOC_SYMBOLS
68	#define HAVE_DLL
69	#define USE_DLFCN
70	#define NEED_STRFTIME_LOCK
71
72	#if defined(_LARGEFILE64_SOURCE) /* vbox */
73	#define _PR_HAVE_OFF64_T /* vbox */
74	#elif defined(_LP64) \|\| _FILE_OFFSET_BITS == 32 /* vbox */
75	#define _PR_HAVE_LARGE_OFF_T /* vbox */
76	#else /* vbox */
77	#define _PR_NO_LARGE_FILES /* vbox */
78	#endif /* vbox */
79
80
81	/*
82	* Intel x86 has atomic instructions.
83	*
84	* Sparc v8 does not have instructions to efficiently implement
85	* atomic increment/decrement operations. In the local threads
86	* only and pthreads versions, we use the default atomic routine
87	* implementation in pratom.c. The obsolete global threads only
88	* version uses a global mutex_t to implement the atomic routines
89	* in solaris.c, which is actually equivalent to the default
90	* implementation.
91	*
92	* 64-bit Solaris requires sparc v9, which has atomic instructions.
93	*/
94	#if defined(i386) \|\| defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(IS_64)
95	#define _PR_HAVE_ATOMIC_OPS
96	#endif
97
98	#if defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(_PR_PTHREADS)
99	/*
100	* We have assembly language implementation of atomic
101	* stacks for the 32-bit sparc and x86 architectures only.
102	*
103	* Note: We ran into thread starvation problem with the
104	* 32-bit sparc assembly language implementation of atomic
105	* stacks, so we do not use it now. (Bugzilla bug 113740)
106	*/
107	#if !defined(sparc)
108	#define _PR_HAVE_ATOMIC_CAS
109	#endif
110	#endif
111
112	#define _PR_POLL_AVAILABLE
113	#define _PR_USE_POLL
114	#define _PR_STAT_HAS_ST_ATIM
115	#ifdef SOLARIS2_5
116	#define _PR_HAVE_SYSV_SEMAPHORES
117	#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
118	#else
119	#define _PR_HAVE_POSIX_SEMAPHORES
120	#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
121	#endif
122	#define _PR_HAVE_GETIPNODEBYNAME
123	#define _PR_HAVE_GETIPNODEBYADDR
124	#define _PR_HAVE_GETADDRINFO
125	#define _PR_INET6_PROBE
126	#define _PR_ACCEPT_INHERIT_NONBLOCK
127	#if !defined(_XPG4_2) \|\| defined(_XPG6) \|\| defined(__EXTENSIONS__) /* vbox */
128	#define _PR_INET6 /* vbox */
129	#endif /* vbox */
130	#ifdef _PR_INET6
131	#define _PR_HAVE_INET_NTOP
132	#else
133	#define AF_INET6 26
134	struct addrinfo {
135	int ai_flags;
136	int ai_family;
137	int ai_socktype;
138	int ai_protocol;
139	size_t ai_addrlen;
140	char *ai_canonname;
141	struct sockaddr *ai_addr;
142	struct addrinfo *ai_next;
143	};
144	#define AI_CANONNAME 0x0010
145	#define AI_V4MAPPED 0x0001
146	#define AI_ALL 0x0002
147	#define AI_ADDRCONFIG 0x0004
148	#define _PR_HAVE_MD_SOCKADDR_IN6
149	/* isomorphic to struct in6_addr on Solaris 8 */
150	struct _md_in6_addr {
151	union {
152	PRUint8 _S6_u8[16];
153	PRUint32 _S6_u32[4];
154	PRUint32 __S6_align;
155	} _S6_un;
156	};
157	/* isomorphic to struct sockaddr_in6 on Solaris 8 */
158	struct _md_sockaddr_in6 {
159	PRUint16 sin6_family;
160	PRUint16 sin6_port;
161	PRUint32 sin6_flowinfo;
162	struct _md_in6_addr sin6_addr;
163	PRUint32 sin6_scope_id;
164	PRUint32 __sin6_src_id;
165	};
166	#endif
167	#if defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(_PR_PTHREADS)
168	#define _PR_HAVE_GETHOST_R
169	#define _PR_HAVE_GETHOST_R_POINTER
170	#endif
171
172	#include "prinrval.h"
173	NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
174	#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
175	NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
176	#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
177
178	#if defined(_PR_HAVE_ATOMIC_OPS)
179	/*
180	** Atomic Operations
181	*/
182	#define _MD_INIT_ATOMIC()
183
184	NSPR_API(PRInt32) _MD_AtomicIncrement(PRInt32 *val);
185	#define _MD_ATOMIC_INCREMENT _MD_AtomicIncrement
186
187	NSPR_API(PRInt32) _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val);
188	#define _MD_ATOMIC_ADD _MD_AtomicAdd
189
190	NSPR_API(PRInt32) _MD_AtomicDecrement(PRInt32 *val);
191	#define _MD_ATOMIC_DECREMENT _MD_AtomicDecrement
192
193	NSPR_API(PRInt32) _MD_AtomicSet(PRInt32 *val, PRInt32 newval);
194	#define _MD_ATOMIC_SET _MD_AtomicSet
195	#endif /* _PR_HAVE_ATOMIC_OPS */
196
197	#if defined(_PR_PTHREADS)
198
199	NSPR_API(void) _MD_EarlyInit(void);
200
201	#define _MD_EARLY_INIT _MD_EarlyInit
202	#define _MD_FINAL_INIT _PR_UnixInit
203
204	#elif defined(_PR_GLOBAL_THREADS_ONLY)
205
206	#include "prthread.h"
207
208	#include <ucontext.h>
209
210	/*
211	** Iinitialization Related definitions
212	*/
213
214	NSPR_API(void) _MD_EarlyInit(void);
215
216	#define _MD_EARLY_INIT _MD_EarlyInit
217	#define _MD_FINAL_INIT _PR_UnixInit
218
219	#define _MD_GET_SP(threadp) threadp->md.sp
220
221	/*
222	** Clean-up the thread machine dependent data structure
223	*/
224	#define _MD_INIT_THREAD _MD_InitializeThread
225	#define _MD_INIT_ATTACHED_THREAD _MD_InitializeThread
226
227	NSPR_API(PRStatus) _MD_CreateThread(PRThread *thread,
228	void (start)(void ),
229	PRThreadPriority priority,
230	PRThreadScope scope,
231	PRThreadState state,
232	PRUint32 stackSize);
233	#define _MD_CREATE_THREAD _MD_CreateThread
234
235	#define _PR_CONTEXT_TYPE ucontext_t
236
237	#define CONTEXT(_thread) (&(_thread)->md.context)
238
239	#include <thread.h>
240	#include <sys/lwp.h>
241	#include <synch.h>
242
243	extern struct PRLock *_pr_schedLock;
244
245	/*
246	** Thread Local Storage
247	*/
248
249	#define THREAD_KEY_T thread_key_t
250
251	extern struct PRThread *_pr_attached_thread_tls();
252	extern struct PRThread *_pr_current_thread_tls();
253	extern struct _PRCPU *_pr_current_cpu_tls();
254	extern struct PRThread *_pr_last_thread_tls();
255
256	extern THREAD_KEY_T threadid_key;
257	extern THREAD_KEY_T cpuid_key;
258	extern THREAD_KEY_T last_thread_key;
259
260	#define _MD_GET_ATTACHED_THREAD() _pr_attached_thread_tls()
261	#define _MD_CURRENT_THREAD() _pr_current_thread_tls()
262	#define _MD_CURRENT_CPU() _pr_current_cpu_tls()
263	#define _MD_LAST_THREAD() _pr_last_thread_tls()
264
265	#define _MD_SET_CURRENT_THREAD(newval) \
266	PR_BEGIN_MACRO \
267	thr_setspecific(threadid_key, (void *)newval); \
268	PR_END_MACRO
269
270	#define _MD_SET_CURRENT_CPU(newval) \
271	PR_BEGIN_MACRO \
272	thr_setspecific(cpuid_key, (void *)newval); \
273	PR_END_MACRO
274
275	#define _MD_SET_LAST_THREAD(newval) \
276	PR_BEGIN_MACRO \
277	thr_setspecific(last_thread_key, (void *)newval); \
278	PR_END_MACRO
279
280	#define _MD_CLEAN_THREAD(_thread) _MD_cleanup_thread(_thread)
281	extern void _MD_exit_thread(PRThread *thread);
282	#define _MD_EXIT_THREAD(thread) _MD_exit_thread(thread)
283
284	#define _MD_SUSPEND_THREAD(thread) _MD_Suspend(thread)
285	#define _MD_RESUME_THREAD(thread) thr_continue((thread)->md.handle)
286
287	/* XXXX Needs to be defined - Prashant */
288	#define _MD_SUSPEND_CPU(cpu)
289	#define _MD_RESUME_CPU(cpu)
290
291	extern void _MD_Begin_SuspendAll(void);
292	extern void _MD_End_SuspendAll(void);
293	extern void _MD_End_ResumeAll(void);
294	#define _MD_BEGIN_SUSPEND_ALL() _MD_Begin_SuspendAll()
295	#define _MD_BEGIN_RESUME_ALL()
296	#define _MD_END_SUSPEND_ALL() _MD_End_SuspendAll()
297	#define _MD_END_RESUME_ALL() _MD_End_ResumeAll()
298
299	#define _MD_INIT_LOCKS()
300	#define _MD_NEW_LOCK(md_lockp) (mutex_init(&((md_lockp)->lock),USYNC_THREAD,NULL) ? PR_FAILURE : PR_SUCCESS)
301	#define _MD_FREE_LOCK(md_lockp) mutex_destroy(&((md_lockp)->lock))
302	#define _MD_UNLOCK(md_lockp) mutex_unlock(&((md_lockp)->lock))
303	#define _MD_TEST_AND_LOCK(md_lockp) mutex_trylock(&((md_lockp)->lock))
304	struct _MDLock;
305	NSPR_API(void) _MD_lock(struct _MDLock *md_lock);
306	#undef PROFILE_LOCKS
307	#ifndef PROFILE_LOCKS
308	#define _MD_LOCK(md_lockp) _MD_lock(md_lockp)
309	#else
310	#define _MD_LOCK(md_lockp) \
311	PR_BEGIN_MACRO \
312	int rv = _MD_TEST_AND_LOCK(md_lockp); \
313	if (rv == 0) { \
314	(md_lockp)->hitcount++; \
315	} else { \
316	(md_lockp)->misscount++; \
317	_MD_lock(md_lockp); \
318	} \
319	PR_END_MACRO
320	#endif
321
322	#define _PR_LOCK_HEAP() if (_pr_heapLock) _MD_LOCK(&_pr_heapLock->md)
323	#define _PR_UNLOCK_HEAP() if (_pr_heapLock) _MD_UNLOCK(&_pr_heapLock->md)
324
325	#define _MD_ATTACH_THREAD(threadp)
326
327
328	#define THR_KEYCREATE thr_keycreate
329	#define THR_SELF thr_self
330	#define _MD_NEW_CV(condp) cond_init(&((condp)->cv), USYNC_THREAD, 0)
331	#define COND_WAIT(condp, mutexp) cond_wait(condp, mutexp)
332	#define COND_TIMEDWAIT(condp, mutexp, tspec) \
333	cond_timedwait(condp, mutexp, tspec)
334	#define _MD_NOTIFY_CV(condp, lockp) cond_signal(&((condp)->cv))
335	#define _MD_NOTIFYALL_CV(condp,unused) cond_broadcast(&((condp)->cv))
336	#define _MD_FREE_CV(condp) cond_destroy(&((condp)->cv))
337	#define _MD_YIELD() thr_yield()
338	#include <time.h>
339	/*
340	* Because clock_gettime() on Solaris/x86 2.4 always generates a
341	* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
342	* which is implemented using gettimeofday().
343	*/
344	#if defined(i386) && defined(SOLARIS2_4)
345	extern int _pr_solx86_clock_gettime(clockid_t clock_id, struct timespec *tp);
346	#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
347	#else
348	#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
349	#endif /* i386 && SOLARIS2_4 */
350
351	#define MUTEX_T mutex_t
352	#define COND_T cond_t
353
354	#define _MD_NEW_SEM(md_semp,_val) sema_init(&((md_semp)->sem),_val,USYNC_THREAD,NULL)
355	#define _MD_DESTROY_SEM(md_semp) sema_destroy(&((md_semp)->sem))
356	#define _MD_WAIT_SEM(md_semp) sema_wait(&((md_semp)->sem))
357	#define _MD_POST_SEM(md_semp) sema_post(&((md_semp)->sem))
358
359	#define _MD_SAVE_ERRNO(_thread)
360	#define _MD_RESTORE_ERRNO(_thread)
361	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
362
363	extern struct _MDLock _pr_ioq_lock;
364	#define _MD_IOQ_LOCK() _MD_LOCK(&_pr_ioq_lock)
365	#define _MD_IOQ_UNLOCK() _MD_UNLOCK(&_pr_ioq_lock)
366
367	extern PRStatus _MD_wait(struct PRThread *, PRIntervalTime timeout);
368	#define _MD_WAIT _MD_wait
369
370	extern PRStatus _MD_WakeupWaiter(struct PRThread *);
371	#define _MD_WAKEUP_WAITER _MD_WakeupWaiter
372
373	NSPR_API(void) _MD_InitIO(void);
374	#define _MD_INIT_IO _MD_InitIO
375
376	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
377	PR_BEGIN_MACRO \
378	*status = PR_TRUE; \
379	PR_END_MACRO
380	#define _MD_SWITCH_CONTEXT(_thread)
381	#define _MD_RESTORE_CONTEXT(_newThread)
382
383	struct _MDLock {
384	MUTEX_T lock;
385	#ifdef PROFILE_LOCKS
386	PRInt32 hitcount;
387	PRInt32 misscount;
388	#endif
389	};
390
391	struct _MDCVar {
392	COND_T cv;
393	};
394
395	struct _MDSemaphore {
396	sema_t sem;
397	};
398
399	struct _MDThread {
400	_PR_CONTEXT_TYPE context;
401	thread_t handle;
402	lwpid_t lwpid;
403	uint_t sp; /* stack pointer */
404	uint_t threadID; /* ptr to solaris-internal thread id structures */
405	struct _MDSemaphore waiter_sem;
406	};
407
408	struct _MDThreadStack {
409	PRInt8 notused;
410	};
411
412	struct _MDSegment {
413	PRInt8 notused;
414	};
415
416	/*
417	* md-specific cpu structure field, common to all Unix platforms
418	*/
419	#define _PR_MD_MAX_OSFD FD_SETSIZE
420
421	struct _MDCPU_Unix {
422	PRCList ioQ;
423	PRUint32 ioq_timeout;
424	PRInt32 ioq_max_osfd;
425	PRInt32 ioq_osfd_cnt;
426	#ifndef _PR_USE_POLL
427	fd_set fd_read_set, fd_write_set, fd_exception_set;
428	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
429	fd_exception_cnt[_PR_MD_MAX_OSFD];
430	#else
431	struct pollfd *ioq_pollfds;
432	int ioq_pollfds_size;
433	#endif /* _PR_USE_POLL */
434	};
435
436	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
437	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
438	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
439	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
440	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
441	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
442	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
443	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
444	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
445	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
446	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
447	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
448	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
449
450	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
451
452
453	struct _MDCPU {
454	struct _MDCPU_Unix md_unix;
455	};
456
457	/* The following defines the unwrapped versions of select() and poll(). */
458	extern int _select(int nfds, fd_set readfds, fd_set writefds,
459	fd_set exceptfds, struct timeval timeout);
460	#define _MD_SELECT _select
461
462	#include <poll.h>
463	#define _MD_POLL _poll
464	extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
465
466	PR_BEGIN_EXTERN_C
467
468	/*
469	** Missing function prototypes
470	*/
471	extern int gethostname (char *name, int namelen);
472
473	PR_END_EXTERN_C
474
475	#else /* _PR_GLOBAL_THREADS_ONLY */
476
477	/*
478	* LOCAL_THREADS_ONLY implementation on Solaris
479	*/
480
481	#include "prthread.h"
482
483	#include <errno.h>
484	#include <ucontext.h>
485	#include <sys/stack.h>
486	#include <synch.h>
487
488	/*
489	** Iinitialization Related definitions
490	*/
491
492	NSPR_API(void) _MD_EarlyInit(void);
493	NSPR_API(void) _MD_SolarisInit();
494	#define _MD_EARLY_INIT _MD_EarlyInit
495	#define _MD_FINAL_INIT _MD_SolarisInit
496	#define _MD_INIT_THREAD _MD_InitializeThread
497
498	#ifdef USE_SETJMP
499
500	#include <setjmp.h>
501
502	#define _PR_CONTEXT_TYPE jmp_buf
503
504	#ifdef sparc
505	#define _MD_GET_SP(_t) (_t)->md.context[2]
506	#else
507	#define _MD_GET_SP(_t) (_t)->md.context[4]
508	#endif
509
510	#define PR_NUM_GCREGS _JBLEN
511	#define CONTEXT(_thread) (_thread)->md.context
512
513	#else /* ! USE_SETJMP */
514
515	#ifdef sparc
516	#define _PR_CONTEXT_TYPE ucontext_t
517	#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[REG_SP]
518	/*
519	** Sparc's use register windows. the _MD_GetRegisters for the sparc's
520	** doesn't actually store anything into the argument buffer; instead the
521	** register windows are homed to the stack. I assume that the stack
522	** always has room for the registers to spill to...
523	*/
524	#define PR_NUM_GCREGS 0
525	#else
526	#define _PR_CONTEXT_TYPE unsigned int edi; sigset_t oldMask, blockMask; ucontext_t
527	#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[USP]
528	#define PR_NUM_GCREGS _JBLEN
529	#endif
530
531	#define CONTEXT(_thread) (&(_thread)->md.context)
532
533	#endif /* ! USE_SETJMP */
534
535	#include <time.h>
536	/*
537	* Because clock_gettime() on Solaris/x86 always generates a
538	* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
539	* which is implemented using gettimeofday().
540	*/
541	#ifdef i386
542	#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
543	#else
544	#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
545	#endif /* i386 */
546
547	#define _MD_SAVE_ERRNO(_thread) (_thread)->md.errcode = errno;
548	#define _MD_RESTORE_ERRNO(_thread) errno = (_thread)->md.errcode;
549
550	#ifdef sparc
551
552	#ifdef USE_SETJMP
553	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
554	PR_BEGIN_MACRO \
555	int *context = (_thread)->md.context; \
556	*status = PR_TRUE; \
557	(void) setjmp(context); \
558	(_thread)->md.context[1] = (int) ((_sp) - 64); \
559	(_thread)->md.context[2] = (int) _main; \
560	(_thread)->md.context[3] = (int) _main + 4; \
561	_thread->no_sched = 0; \
562	PR_END_MACRO
563
564	#define _MD_SWITCH_CONTEXT(_thread) \
565	if (!setjmp(CONTEXT(_thread))) { \
566	_MD_SAVE_ERRNO(_thread) \
567	_MD_SET_LAST_THREAD(_thread); \
568	_MD_SET_CURRENT_THREAD(_thread); \
569	_PR_Schedule(); \
570	}
571
572	#define _MD_RESTORE_CONTEXT(_newThread) \
573	{ \
574	_MD_RESTORE_ERRNO(_newThread) \
575	_MD_SET_CURRENT_THREAD(_newThread); \
576	longjmp(CONTEXT(_newThread), 1); \
577	}
578
579	#else
580	/*
581	** Initialize the thread context preparing it to execute _main.
582	*/
583	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
584	PR_BEGIN_MACRO \
585	ucontext_t *uc = CONTEXT(_thread); \
586	*status = PR_TRUE; \
587	getcontext(uc); \
588	uc->uc_stack.ss_sp = (char *) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
589	uc->uc_stack.ss_size = _thread->stack->stackSize; \
590	uc->uc_stack.ss_flags = 0; /* ? */ \
591	uc->uc_mcontext.gregs[REG_SP] = (unsigned int) uc->uc_stack.ss_sp; \
592	uc->uc_mcontext.gregs[REG_PC] = (unsigned int) _main; \
593	uc->uc_mcontext.gregs[REG_nPC] = (unsigned int) ((char*)_main)+4; \
594	uc->uc_flags = UC_ALL; \
595	_thread->no_sched = 0; \
596	PR_END_MACRO
597
598	/*
599	** Switch away from the current thread context by saving its state and
600	** calling the thread scheduler. Reload cpu when we come back from the
601	** context switch because it might have changed.
602	*/
603	#define _MD_SWITCH_CONTEXT(_thread) \
604	PR_BEGIN_MACRO \
605	if (!getcontext(CONTEXT(_thread))) { \
606	_MD_SAVE_ERRNO(_thread); \
607	_MD_SET_LAST_THREAD(_thread); \
608	_PR_Schedule(); \
609	} \
610	PR_END_MACRO
611
612	/*
613	** Restore a thread context that was saved by _MD_SWITCH_CONTEXT or
614	** initialized by _MD_INIT_CONTEXT.
615	*/
616	#define _MD_RESTORE_CONTEXT(_newThread) \
617	PR_BEGIN_MACRO \
618	ucontext_t *uc = CONTEXT(_newThread); \
619	uc->uc_mcontext.gregs[11] = 1; \
620	_MD_RESTORE_ERRNO(_newThread); \
621	_MD_SET_CURRENT_THREAD(_newThread); \
622	setcontext(uc); \
623	PR_END_MACRO
624	#endif
625
626	#else /* x86 solaris */
627
628	#ifdef USE_SETJMP
629
630	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
631	PR_BEGIN_MACRO \
632	*status = PR_TRUE; \
633	if (setjmp(CONTEXT(_thread))) _main(); \
634	_MD_GET_SP(_thread) = (int) ((_sp) - 64); \
635	PR_END_MACRO
636
637	#define _MD_SWITCH_CONTEXT(_thread) \
638	if (!setjmp(CONTEXT(_thread))) { \
639	_MD_SAVE_ERRNO(_thread) \
640	_PR_Schedule(); \
641	}
642
643	#define _MD_RESTORE_CONTEXT(_newThread) \
644	{ \
645	_MD_RESTORE_ERRNO(_newThread) \
646	_MD_SET_CURRENT_THREAD(_newThread); \
647	longjmp(CONTEXT(_newThread), 1); \
648	}
649
650	#else /* USE_SETJMP */
651
652	#define WINDOWSIZE 0
653
654	int getedi(void);
655	void setedi(int);
656
657	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
658	PR_BEGIN_MACRO \
659	ucontext_t *uc = CONTEXT(_thread); \
660	*status = PR_TRUE; \
661	getcontext(uc); \
662	/* Force sp to be double aligned! */ \
663	uc->uc_mcontext.gregs[USP] = (int) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
664	uc->uc_mcontext.gregs[PC] = (int) _main; \
665	(_thread)->no_sched = 0; \
666	PR_END_MACRO
667
668	/* getcontext() may return 1, contrary to what the man page says */
669	#define _MD_SWITCH_CONTEXT(_thread) \
670	PR_BEGIN_MACRO \
671	ucontext_t *uc = CONTEXT(_thread); \
672	PR_ASSERT(_thread->no_sched); \
673	sigfillset(&((_thread)->md.blockMask)); \
674	sigprocmask(SIG_BLOCK, &((_thread)->md.blockMask), \
675	&((_thread)->md.oldMask)); \
676	(_thread)->md.edi = getedi(); \
677	if (! getcontext(uc)) { \
678	sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
679	uc->uc_mcontext.gregs[EDI] = (_thread)->md.edi; \
680	_MD_SAVE_ERRNO(_thread) \
681	_MD_SET_LAST_THREAD(_thread); \
682	_PR_Schedule(); \
683	} else { \
684	sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
685	setedi((_thread)->md.edi); \
686	PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD()); \
687	_MD_LAST_THREAD()->no_sched = 0; \
688	} \
689	PR_END_MACRO
690
691	/*
692	** Restore a thread context, saved by _PR_SWITCH_CONTEXT
693	*/
694	#define _MD_RESTORE_CONTEXT(_newthread) \
695	PR_BEGIN_MACRO \
696	ucontext_t *uc = CONTEXT(_newthread); \
697	uc->uc_mcontext.gregs[EAX] = 1; \
698	_MD_RESTORE_ERRNO(_newthread) \
699	_MD_SET_CURRENT_THREAD(_newthread); \
700	(_newthread)->no_sched = 1; \
701	setcontext(uc); \
702	PR_END_MACRO
703	#endif /* USE_SETJMP */
704
705	#endif /* sparc */
706
707	struct _MDLock {
708	PRInt8 notused;
709	};
710
711	struct _MDCVar {
712	PRInt8 notused;
713	};
714
715	struct _MDSemaphore {
716	PRInt8 notused;
717	};
718
719	struct _MDThread {
720	_PR_CONTEXT_TYPE context;
721	int errcode;
722	int id;
723	};
724
725	struct _MDThreadStack {
726	PRInt8 notused;
727	};
728
729	struct _MDSegment {
730	PRInt8 notused;
731	};
732
733	/*
734	* md-specific cpu structure field
735	*/
736	#define _PR_MD_MAX_OSFD FD_SETSIZE
737
738	struct _MDCPU_Unix {
739	PRCList ioQ;
740	PRUint32 ioq_timeout;
741	PRInt32 ioq_max_osfd;
742	PRInt32 ioq_osfd_cnt;
743	#ifndef _PR_USE_POLL
744	fd_set fd_read_set, fd_write_set, fd_exception_set;
745	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
746	fd_exception_cnt[_PR_MD_MAX_OSFD];
747	#else
748	struct pollfd *ioq_pollfds;
749	int ioq_pollfds_size;
750	#endif /* _PR_USE_POLL */
751	};
752
753	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
754	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
755	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
756	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
757	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
758	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
759	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
760	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
761	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
762	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
763	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
764	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
765	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
766
767	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
768
769	struct _MDCPU {
770	struct _MDCPU_Unix md_unix;
771	};
772
773	#ifndef _PR_PTHREADS
774	#define _MD_INIT_LOCKS()
775	#endif
776	#define _MD_NEW_LOCK(lock) PR_SUCCESS
777	#define _MD_FREE_LOCK(lock)
778	#define _MD_LOCK(lock)
779	#define _MD_UNLOCK(lock)
780	#define _MD_INIT_IO()
781	#define _MD_IOQ_LOCK()
782	#define _MD_IOQ_UNLOCK()
783
784	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
785	#define _MD_INIT_THREAD _MD_InitializeThread
786	#define _MD_EXIT_THREAD(thread)
787	#define _MD_SUSPEND_THREAD(thread)
788	#define _MD_RESUME_THREAD(thread)
789	#define _MD_CLEAN_THREAD(_thread)
790
791	extern PRStatus _MD_WAIT(struct PRThread *, PRIntervalTime timeout);
792	extern PRStatus _MD_WAKEUP_WAITER(struct PRThread *);
793	extern void _MD_YIELD(void);
794	extern PRStatus _MD_InitializeThread(PRThread *thread);
795	extern void _MD_SET_PRIORITY(struct _MDThread *thread,
796	PRThreadPriority newPri);
797	extern PRStatus _MD_CREATE_THREAD(PRThread thread, void (start) (void *),
798	PRThreadPriority priority, PRThreadScope scope, PRThreadState state,
799	PRUint32 stackSize);
800
801	NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
802	#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
803	NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
804	#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
805
806	/* The following defines the unwrapped versions of select() and poll(). */
807	extern int _select(int nfds, fd_set readfds, fd_set writefds,
808	fd_set exceptfds, struct timeval timeout);
809	#define _MD_SELECT _select
810
811	#include <stropts.h>
812	#include <poll.h>
813	#define _MD_POLL _poll
814	extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
815
816	PR_BEGIN_EXTERN_C
817
818	/*
819	** Missing function prototypes
820	*/
821	extern int gethostname (char *name, int namelen);
822
823	PR_END_EXTERN_C
824
825	#endif /* _PR_GLOBAL_THREADS_ONLY */
826
827	extern void _MD_solaris_map_sendfile_error(int err);
828
829	#endif /* nspr_solaris_defs_h___ */
830

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source: vbox/trunk/src/libs/xpcom18a4/nsprpub/pr/include/md/_solaris.h@ 4885

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