_solaris.h@ 3368

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

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source: vbox/trunk/src/libs/xpcom18a4/nsprpub/pr/include/md/_solaris.h@ 3368

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