_solaris.h@ 21017

Last change on this file since 21017 was 5300, checked in by vboxsync, 17 years ago
Appled https://bugzilla.mozilla.org/attachment.cgi?id=161204 from https://bugzilla.mozilla.org/show_bug.cgi?id=259001 (relevant parts only).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 24.5 KB

Line
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	#elif defined(__x86_64)
52	#define _PR_SI_ARCHITECTURE "x86-64"
53	#else
54	#error unknown processor
55	#endif
56	#define PR_DLL_SUFFIX ".so"
57
58	#define _PR_VMBASE 0x30000000
59	#define _PR_STACK_VMBASE 0x50000000
60	#define _MD_DEFAULT_STACK_SIZE (2*65536L)
61	#define _MD_MMAP_FLAGS MAP_SHARED
62
63	#undef HAVE_STACK_GROWING_UP
64
65	#ifndef HAVE_WEAK_IO_SYMBOLS
66	#define HAVE_WEAK_IO_SYMBOLS
67	#endif
68
69	#undef HAVE_WEAK_MALLOC_SYMBOLS
70	#define HAVE_DLL
71	#define USE_DLFCN
72	#define NEED_STRFTIME_LOCK
73
74	#if defined(_LARGEFILE64_SOURCE) /* vbox */
75	#define _PR_HAVE_OFF64_T /* vbox */
76	#elif defined(_LP64) \|\| _FILE_OFFSET_BITS == 32 /* vbox */
77	#define _PR_HAVE_LARGE_OFF_T /* vbox */
78	#else /* vbox */
79	#define _PR_NO_LARGE_FILES /* vbox */
80	#endif /* vbox */
81
82
83	/*
84	* Intel x86 has atomic instructions.
85	*
86	* Sparc v8 does not have instructions to efficiently implement
87	* atomic increment/decrement operations. In the local threads
88	* only and pthreads versions, we use the default atomic routine
89	* implementation in pratom.c. The obsolete global threads only
90	* version uses a global mutex_t to implement the atomic routines
91	* in solaris.c, which is actually equivalent to the default
92	* implementation.
93	*
94	* 64-bit Solaris requires sparc v9, which has atomic instructions.
95	*/
96	#if defined(i386) \|\| defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(IS_64)
97	#define _PR_HAVE_ATOMIC_OPS
98	#endif
99
100	#if defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(_PR_PTHREADS)
101	/*
102	* We have assembly language implementation of atomic
103	* stacks for the 32-bit sparc and x86 architectures only.
104	*
105	* Note: We ran into thread starvation problem with the
106	* 32-bit sparc assembly language implementation of atomic
107	* stacks, so we do not use it now. (Bugzilla bug 113740)
108	*/
109	#if !defined(sparc) && !defined(__x86_64)
110	#define _PR_HAVE_ATOMIC_CAS
111	#endif
112	#endif
113
114	#define _PR_POLL_AVAILABLE
115	#define _PR_USE_POLL
116	#define _PR_STAT_HAS_ST_ATIM
117	#ifdef SOLARIS2_5
118	#define _PR_HAVE_SYSV_SEMAPHORES
119	#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
120	#else
121	#define _PR_HAVE_POSIX_SEMAPHORES
122	#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
123	#endif
124	#define _PR_HAVE_GETIPNODEBYNAME
125	#define _PR_HAVE_GETIPNODEBYADDR
126	#define _PR_HAVE_GETADDRINFO
127	#define _PR_INET6_PROBE
128	#define _PR_ACCEPT_INHERIT_NONBLOCK
129	#if !defined(_XPG4_2) \|\| defined(_XPG6) \|\| defined(__EXTENSIONS__) /* vbox */
130	#define _PR_INET6 /* vbox */
131	#endif /* vbox */
132	#ifdef _PR_INET6
133	#define _PR_HAVE_INET_NTOP
134	#else
135	#define AF_INET6 26
136	struct addrinfo {
137	int ai_flags;
138	int ai_family;
139	int ai_socktype;
140	int ai_protocol;
141	size_t ai_addrlen;
142	char *ai_canonname;
143	struct sockaddr *ai_addr;
144	struct addrinfo *ai_next;
145	};
146	#define AI_CANONNAME 0x0010
147	#define AI_V4MAPPED 0x0001
148	#define AI_ALL 0x0002
149	#define AI_ADDRCONFIG 0x0004
150	#define _PR_HAVE_MD_SOCKADDR_IN6
151	/* isomorphic to struct in6_addr on Solaris 8 */
152	struct _md_in6_addr {
153	union {
154	PRUint8 _S6_u8[16];
155	PRUint32 _S6_u32[4];
156	PRUint32 __S6_align;
157	} _S6_un;
158	};
159	/* isomorphic to struct sockaddr_in6 on Solaris 8 */
160	struct _md_sockaddr_in6 {
161	PRUint16 sin6_family;
162	PRUint16 sin6_port;
163	PRUint32 sin6_flowinfo;
164	struct _md_in6_addr sin6_addr;
165	PRUint32 sin6_scope_id;
166	PRUint32 __sin6_src_id;
167	};
168	#endif
169	#if defined(_PR_GLOBAL_THREADS_ONLY) \|\| defined(_PR_PTHREADS)
170	#define _PR_HAVE_GETHOST_R
171	#define _PR_HAVE_GETHOST_R_POINTER
172	#endif
173
174	#include "prinrval.h"
175	NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
176	#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
177	NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
178	#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
179
180	#if defined(_PR_HAVE_ATOMIC_OPS)
181	/*
182	** Atomic Operations
183	*/
184	#define _MD_INIT_ATOMIC()
185
186	NSPR_API(PRInt32) _MD_AtomicIncrement(PRInt32 *val);
187	#define _MD_ATOMIC_INCREMENT _MD_AtomicIncrement
188
189	NSPR_API(PRInt32) _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val);
190	#define _MD_ATOMIC_ADD _MD_AtomicAdd
191
192	NSPR_API(PRInt32) _MD_AtomicDecrement(PRInt32 *val);
193	#define _MD_ATOMIC_DECREMENT _MD_AtomicDecrement
194
195	NSPR_API(PRInt32) _MD_AtomicSet(PRInt32 *val, PRInt32 newval);
196	#define _MD_ATOMIC_SET _MD_AtomicSet
197	#endif /* _PR_HAVE_ATOMIC_OPS */
198
199	#if defined(_PR_PTHREADS)
200
201	NSPR_API(void) _MD_EarlyInit(void);
202
203	#define _MD_EARLY_INIT _MD_EarlyInit
204	#define _MD_FINAL_INIT _PR_UnixInit
205
206	#elif defined(_PR_GLOBAL_THREADS_ONLY)
207
208	#include "prthread.h"
209
210	#include <ucontext.h>
211
212	/*
213	** Iinitialization Related definitions
214	*/
215
216	NSPR_API(void) _MD_EarlyInit(void);
217
218	#define _MD_EARLY_INIT _MD_EarlyInit
219	#define _MD_FINAL_INIT _PR_UnixInit
220
221	#define _MD_GET_SP(threadp) threadp->md.sp
222
223	/*
224	** Clean-up the thread machine dependent data structure
225	*/
226	#define _MD_INIT_THREAD _MD_InitializeThread
227	#define _MD_INIT_ATTACHED_THREAD _MD_InitializeThread
228
229	NSPR_API(PRStatus) _MD_CreateThread(PRThread *thread,
230	void (start)(void ),
231	PRThreadPriority priority,
232	PRThreadScope scope,
233	PRThreadState state,
234	PRUint32 stackSize);
235	#define _MD_CREATE_THREAD _MD_CreateThread
236
237	#define _PR_CONTEXT_TYPE ucontext_t
238
239	#define CONTEXT(_thread) (&(_thread)->md.context)
240
241	#include <thread.h>
242	#include <sys/lwp.h>
243	#include <synch.h>
244
245	extern struct PRLock *_pr_schedLock;
246
247	/*
248	** Thread Local Storage
249	*/
250
251	#define THREAD_KEY_T thread_key_t
252
253	extern struct PRThread *_pr_attached_thread_tls();
254	extern struct PRThread *_pr_current_thread_tls();
255	extern struct _PRCPU *_pr_current_cpu_tls();
256	extern struct PRThread *_pr_last_thread_tls();
257
258	extern THREAD_KEY_T threadid_key;
259	extern THREAD_KEY_T cpuid_key;
260	extern THREAD_KEY_T last_thread_key;
261
262	#define _MD_GET_ATTACHED_THREAD() _pr_attached_thread_tls()
263	#define _MD_CURRENT_THREAD() _pr_current_thread_tls()
264	#define _MD_CURRENT_CPU() _pr_current_cpu_tls()
265	#define _MD_LAST_THREAD() _pr_last_thread_tls()
266
267	#define _MD_SET_CURRENT_THREAD(newval) \
268	PR_BEGIN_MACRO \
269	thr_setspecific(threadid_key, (void *)newval); \
270	PR_END_MACRO
271
272	#define _MD_SET_CURRENT_CPU(newval) \
273	PR_BEGIN_MACRO \
274	thr_setspecific(cpuid_key, (void *)newval); \
275	PR_END_MACRO
276
277	#define _MD_SET_LAST_THREAD(newval) \
278	PR_BEGIN_MACRO \
279	thr_setspecific(last_thread_key, (void *)newval); \
280	PR_END_MACRO
281
282	#define _MD_CLEAN_THREAD(_thread) _MD_cleanup_thread(_thread)
283	extern void _MD_exit_thread(PRThread *thread);
284	#define _MD_EXIT_THREAD(thread) _MD_exit_thread(thread)
285
286	#define _MD_SUSPEND_THREAD(thread) _MD_Suspend(thread)
287	#define _MD_RESUME_THREAD(thread) thr_continue((thread)->md.handle)
288
289	/* XXXX Needs to be defined - Prashant */
290	#define _MD_SUSPEND_CPU(cpu)
291	#define _MD_RESUME_CPU(cpu)
292
293	extern void _MD_Begin_SuspendAll(void);
294	extern void _MD_End_SuspendAll(void);
295	extern void _MD_End_ResumeAll(void);
296	#define _MD_BEGIN_SUSPEND_ALL() _MD_Begin_SuspendAll()
297	#define _MD_BEGIN_RESUME_ALL()
298	#define _MD_END_SUSPEND_ALL() _MD_End_SuspendAll()
299	#define _MD_END_RESUME_ALL() _MD_End_ResumeAll()
300
301	#define _MD_INIT_LOCKS()
302	#define _MD_NEW_LOCK(md_lockp) (mutex_init(&((md_lockp)->lock),USYNC_THREAD,NULL) ? PR_FAILURE : PR_SUCCESS)
303	#define _MD_FREE_LOCK(md_lockp) mutex_destroy(&((md_lockp)->lock))
304	#define _MD_UNLOCK(md_lockp) mutex_unlock(&((md_lockp)->lock))
305	#define _MD_TEST_AND_LOCK(md_lockp) mutex_trylock(&((md_lockp)->lock))
306	struct _MDLock;
307	NSPR_API(void) _MD_lock(struct _MDLock *md_lock);
308	#undef PROFILE_LOCKS
309	#ifndef PROFILE_LOCKS
310	#define _MD_LOCK(md_lockp) _MD_lock(md_lockp)
311	#else
312	#define _MD_LOCK(md_lockp) \
313	PR_BEGIN_MACRO \
314	int rv = _MD_TEST_AND_LOCK(md_lockp); \
315	if (rv == 0) { \
316	(md_lockp)->hitcount++; \
317	} else { \
318	(md_lockp)->misscount++; \
319	_MD_lock(md_lockp); \
320	} \
321	PR_END_MACRO
322	#endif
323
324	#define _PR_LOCK_HEAP() if (_pr_heapLock) _MD_LOCK(&_pr_heapLock->md)
325	#define _PR_UNLOCK_HEAP() if (_pr_heapLock) _MD_UNLOCK(&_pr_heapLock->md)
326
327	#define _MD_ATTACH_THREAD(threadp)
328
329
330	#define THR_KEYCREATE thr_keycreate
331	#define THR_SELF thr_self
332	#define _MD_NEW_CV(condp) cond_init(&((condp)->cv), USYNC_THREAD, 0)
333	#define COND_WAIT(condp, mutexp) cond_wait(condp, mutexp)
334	#define COND_TIMEDWAIT(condp, mutexp, tspec) \
335	cond_timedwait(condp, mutexp, tspec)
336	#define _MD_NOTIFY_CV(condp, lockp) cond_signal(&((condp)->cv))
337	#define _MD_NOTIFYALL_CV(condp,unused) cond_broadcast(&((condp)->cv))
338	#define _MD_FREE_CV(condp) cond_destroy(&((condp)->cv))
339	#define _MD_YIELD() thr_yield()
340	#include <time.h>
341	/*
342	* Because clock_gettime() on Solaris/x86 2.4 always generates a
343	* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
344	* which is implemented using gettimeofday().
345	*/
346	#if defined(i386) && defined(SOLARIS2_4)
347	extern int _pr_solx86_clock_gettime(clockid_t clock_id, struct timespec *tp);
348	#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
349	#else
350	#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
351	#endif /* i386 && SOLARIS2_4 */
352
353	#define MUTEX_T mutex_t
354	#define COND_T cond_t
355
356	#define _MD_NEW_SEM(md_semp,_val) sema_init(&((md_semp)->sem),_val,USYNC_THREAD,NULL)
357	#define _MD_DESTROY_SEM(md_semp) sema_destroy(&((md_semp)->sem))
358	#define _MD_WAIT_SEM(md_semp) sema_wait(&((md_semp)->sem))
359	#define _MD_POST_SEM(md_semp) sema_post(&((md_semp)->sem))
360
361	#define _MD_SAVE_ERRNO(_thread)
362	#define _MD_RESTORE_ERRNO(_thread)
363	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
364
365	extern struct _MDLock _pr_ioq_lock;
366	#define _MD_IOQ_LOCK() _MD_LOCK(&_pr_ioq_lock)
367	#define _MD_IOQ_UNLOCK() _MD_UNLOCK(&_pr_ioq_lock)
368
369	extern PRStatus _MD_wait(struct PRThread *, PRIntervalTime timeout);
370	#define _MD_WAIT _MD_wait
371
372	extern PRStatus _MD_WakeupWaiter(struct PRThread *);
373	#define _MD_WAKEUP_WAITER _MD_WakeupWaiter
374
375	NSPR_API(void) _MD_InitIO(void);
376	#define _MD_INIT_IO _MD_InitIO
377
378	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
379	PR_BEGIN_MACRO \
380	*status = PR_TRUE; \
381	PR_END_MACRO
382	#define _MD_SWITCH_CONTEXT(_thread)
383	#define _MD_RESTORE_CONTEXT(_newThread)
384
385	struct _MDLock {
386	MUTEX_T lock;
387	#ifdef PROFILE_LOCKS
388	PRInt32 hitcount;
389	PRInt32 misscount;
390	#endif
391	};
392
393	struct _MDCVar {
394	COND_T cv;
395	};
396
397	struct _MDSemaphore {
398	sema_t sem;
399	};
400
401	struct _MDThread {
402	_PR_CONTEXT_TYPE context;
403	thread_t handle;
404	lwpid_t lwpid;
405	uint_t sp; /* stack pointer */
406	uint_t threadID; /* ptr to solaris-internal thread id structures */
407	struct _MDSemaphore waiter_sem;
408	};
409
410	struct _MDThreadStack {
411	PRInt8 notused;
412	};
413
414	struct _MDSegment {
415	PRInt8 notused;
416	};
417
418	/*
419	* md-specific cpu structure field, common to all Unix platforms
420	*/
421	#define _PR_MD_MAX_OSFD FD_SETSIZE
422
423	struct _MDCPU_Unix {
424	PRCList ioQ;
425	PRUint32 ioq_timeout;
426	PRInt32 ioq_max_osfd;
427	PRInt32 ioq_osfd_cnt;
428	#ifndef _PR_USE_POLL
429	fd_set fd_read_set, fd_write_set, fd_exception_set;
430	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
431	fd_exception_cnt[_PR_MD_MAX_OSFD];
432	#else
433	struct pollfd *ioq_pollfds;
434	int ioq_pollfds_size;
435	#endif /* _PR_USE_POLL */
436	};
437
438	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
439	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
440	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
441	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
442	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
443	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
444	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
445	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
446	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
447	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
448	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
449	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
450	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
451
452	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
453
454
455	struct _MDCPU {
456	struct _MDCPU_Unix md_unix;
457	};
458
459	/* The following defines the unwrapped versions of select() and poll(). */
460	extern int _select(int nfds, fd_set readfds, fd_set writefds,
461	fd_set exceptfds, struct timeval timeout);
462	#define _MD_SELECT _select
463
464	#include <poll.h>
465	#define _MD_POLL _poll
466	extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
467
468	PR_BEGIN_EXTERN_C
469
470	/*
471	** Missing function prototypes
472	*/
473	extern int gethostname (char *name, int namelen);
474
475	PR_END_EXTERN_C
476
477	#else /* _PR_GLOBAL_THREADS_ONLY */
478
479	/*
480	* LOCAL_THREADS_ONLY implementation on Solaris
481	*/
482
483	#include "prthread.h"
484
485	#include <errno.h>
486	#include <ucontext.h>
487	#include <sys/stack.h>
488	#include <synch.h>
489
490	/*
491	** Iinitialization Related definitions
492	*/
493
494	NSPR_API(void) _MD_EarlyInit(void);
495	NSPR_API(void) _MD_SolarisInit();
496	#define _MD_EARLY_INIT _MD_EarlyInit
497	#define _MD_FINAL_INIT _MD_SolarisInit
498	#define _MD_INIT_THREAD _MD_InitializeThread
499
500	#ifdef USE_SETJMP
501
502	#include <setjmp.h>
503
504	#define _PR_CONTEXT_TYPE jmp_buf
505
506	#ifdef sparc
507	#define _MD_GET_SP(_t) (_t)->md.context[2]
508	#else
509	#define _MD_GET_SP(_t) (_t)->md.context[4]
510	#endif
511
512	#define PR_NUM_GCREGS _JBLEN
513	#define CONTEXT(_thread) (_thread)->md.context
514
515	#else /* ! USE_SETJMP */
516
517	#ifdef sparc
518	#define _PR_CONTEXT_TYPE ucontext_t
519	#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[REG_SP]
520	/*
521	** Sparc's use register windows. the _MD_GetRegisters for the sparc's
522	** doesn't actually store anything into the argument buffer; instead the
523	** register windows are homed to the stack. I assume that the stack
524	** always has room for the registers to spill to...
525	*/
526	#define PR_NUM_GCREGS 0
527	#else
528	#define _PR_CONTEXT_TYPE unsigned int edi; sigset_t oldMask, blockMask; ucontext_t
529	#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[USP]
530	#define PR_NUM_GCREGS _JBLEN
531	#endif
532
533	#define CONTEXT(_thread) (&(_thread)->md.context)
534
535	#endif /* ! USE_SETJMP */
536
537	#include <time.h>
538	/*
539	* Because clock_gettime() on Solaris/x86 always generates a
540	* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
541	* which is implemented using gettimeofday().
542	*/
543	#ifdef i386
544	#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
545	#else
546	#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
547	#endif /* i386 */
548
549	#define _MD_SAVE_ERRNO(_thread) (_thread)->md.errcode = errno;
550	#define _MD_RESTORE_ERRNO(_thread) errno = (_thread)->md.errcode;
551
552	#ifdef sparc
553
554	#ifdef USE_SETJMP
555	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
556	PR_BEGIN_MACRO \
557	int *context = (_thread)->md.context; \
558	*status = PR_TRUE; \
559	(void) setjmp(context); \
560	(_thread)->md.context[1] = (int) ((_sp) - 64); \
561	(_thread)->md.context[2] = (int) _main; \
562	(_thread)->md.context[3] = (int) _main + 4; \
563	_thread->no_sched = 0; \
564	PR_END_MACRO
565
566	#define _MD_SWITCH_CONTEXT(_thread) \
567	if (!setjmp(CONTEXT(_thread))) { \
568	_MD_SAVE_ERRNO(_thread) \
569	_MD_SET_LAST_THREAD(_thread); \
570	_MD_SET_CURRENT_THREAD(_thread); \
571	_PR_Schedule(); \
572	}
573
574	#define _MD_RESTORE_CONTEXT(_newThread) \
575	{ \
576	_MD_RESTORE_ERRNO(_newThread) \
577	_MD_SET_CURRENT_THREAD(_newThread); \
578	longjmp(CONTEXT(_newThread), 1); \
579	}
580
581	#else
582	/*
583	** Initialize the thread context preparing it to execute _main.
584	*/
585	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
586	PR_BEGIN_MACRO \
587	ucontext_t *uc = CONTEXT(_thread); \
588	*status = PR_TRUE; \
589	getcontext(uc); \
590	uc->uc_stack.ss_sp = (char *) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
591	uc->uc_stack.ss_size = _thread->stack->stackSize; \
592	uc->uc_stack.ss_flags = 0; /* ? */ \
593	uc->uc_mcontext.gregs[REG_SP] = (unsigned int) uc->uc_stack.ss_sp; \
594	uc->uc_mcontext.gregs[REG_PC] = (unsigned int) _main; \
595	uc->uc_mcontext.gregs[REG_nPC] = (unsigned int) ((char*)_main)+4; \
596	uc->uc_flags = UC_ALL; \
597	_thread->no_sched = 0; \
598	PR_END_MACRO
599
600	/*
601	** Switch away from the current thread context by saving its state and
602	** calling the thread scheduler. Reload cpu when we come back from the
603	** context switch because it might have changed.
604	*/
605	#define _MD_SWITCH_CONTEXT(_thread) \
606	PR_BEGIN_MACRO \
607	if (!getcontext(CONTEXT(_thread))) { \
608	_MD_SAVE_ERRNO(_thread); \
609	_MD_SET_LAST_THREAD(_thread); \
610	_PR_Schedule(); \
611	} \
612	PR_END_MACRO
613
614	/*
615	** Restore a thread context that was saved by _MD_SWITCH_CONTEXT or
616	** initialized by _MD_INIT_CONTEXT.
617	*/
618	#define _MD_RESTORE_CONTEXT(_newThread) \
619	PR_BEGIN_MACRO \
620	ucontext_t *uc = CONTEXT(_newThread); \
621	uc->uc_mcontext.gregs[11] = 1; \
622	_MD_RESTORE_ERRNO(_newThread); \
623	_MD_SET_CURRENT_THREAD(_newThread); \
624	setcontext(uc); \
625	PR_END_MACRO
626	#endif
627
628	#else /* x86 solaris */
629
630	#ifdef USE_SETJMP
631
632	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
633	PR_BEGIN_MACRO \
634	*status = PR_TRUE; \
635	if (setjmp(CONTEXT(_thread))) _main(); \
636	_MD_GET_SP(_thread) = (int) ((_sp) - 64); \
637	PR_END_MACRO
638
639	#define _MD_SWITCH_CONTEXT(_thread) \
640	if (!setjmp(CONTEXT(_thread))) { \
641	_MD_SAVE_ERRNO(_thread) \
642	_PR_Schedule(); \
643	}
644
645	#define _MD_RESTORE_CONTEXT(_newThread) \
646	{ \
647	_MD_RESTORE_ERRNO(_newThread) \
648	_MD_SET_CURRENT_THREAD(_newThread); \
649	longjmp(CONTEXT(_newThread), 1); \
650	}
651
652	#else /* USE_SETJMP */
653
654	#define WINDOWSIZE 0
655
656	int getedi(void);
657	void setedi(int);
658
659	#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
660	PR_BEGIN_MACRO \
661	ucontext_t *uc = CONTEXT(_thread); \
662	*status = PR_TRUE; \
663	getcontext(uc); \
664	/* Force sp to be double aligned! */ \
665	uc->uc_mcontext.gregs[USP] = (int) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
666	uc->uc_mcontext.gregs[PC] = (int) _main; \
667	(_thread)->no_sched = 0; \
668	PR_END_MACRO
669
670	/* getcontext() may return 1, contrary to what the man page says */
671	#define _MD_SWITCH_CONTEXT(_thread) \
672	PR_BEGIN_MACRO \
673	ucontext_t *uc = CONTEXT(_thread); \
674	PR_ASSERT(_thread->no_sched); \
675	sigfillset(&((_thread)->md.blockMask)); \
676	sigprocmask(SIG_BLOCK, &((_thread)->md.blockMask), \
677	&((_thread)->md.oldMask)); \
678	(_thread)->md.edi = getedi(); \
679	if (! getcontext(uc)) { \
680	sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
681	uc->uc_mcontext.gregs[EDI] = (_thread)->md.edi; \
682	_MD_SAVE_ERRNO(_thread) \
683	_MD_SET_LAST_THREAD(_thread); \
684	_PR_Schedule(); \
685	} else { \
686	sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
687	setedi((_thread)->md.edi); \
688	PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD()); \
689	_MD_LAST_THREAD()->no_sched = 0; \
690	} \
691	PR_END_MACRO
692
693	/*
694	** Restore a thread context, saved by _PR_SWITCH_CONTEXT
695	*/
696	#define _MD_RESTORE_CONTEXT(_newthread) \
697	PR_BEGIN_MACRO \
698	ucontext_t *uc = CONTEXT(_newthread); \
699	uc->uc_mcontext.gregs[EAX] = 1; \
700	_MD_RESTORE_ERRNO(_newthread) \
701	_MD_SET_CURRENT_THREAD(_newthread); \
702	(_newthread)->no_sched = 1; \
703	setcontext(uc); \
704	PR_END_MACRO
705	#endif /* USE_SETJMP */
706
707	#endif /* sparc */
708
709	struct _MDLock {
710	PRInt8 notused;
711	};
712
713	struct _MDCVar {
714	PRInt8 notused;
715	};
716
717	struct _MDSemaphore {
718	PRInt8 notused;
719	};
720
721	struct _MDThread {
722	_PR_CONTEXT_TYPE context;
723	int errcode;
724	int id;
725	};
726
727	struct _MDThreadStack {
728	PRInt8 notused;
729	};
730
731	struct _MDSegment {
732	PRInt8 notused;
733	};
734
735	/*
736	* md-specific cpu structure field
737	*/
738	#define _PR_MD_MAX_OSFD FD_SETSIZE
739
740	struct _MDCPU_Unix {
741	PRCList ioQ;
742	PRUint32 ioq_timeout;
743	PRInt32 ioq_max_osfd;
744	PRInt32 ioq_osfd_cnt;
745	#ifndef _PR_USE_POLL
746	fd_set fd_read_set, fd_write_set, fd_exception_set;
747	PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
748	fd_exception_cnt[_PR_MD_MAX_OSFD];
749	#else
750	struct pollfd *ioq_pollfds;
751	int ioq_pollfds_size;
752	#endif /* _PR_USE_POLL */
753	};
754
755	#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
756	#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
757	#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
758	#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
759	#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
760	#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
761	#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
762	#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
763	#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
764	#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
765	#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
766	#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
767	#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
768
769	#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
770
771	struct _MDCPU {
772	struct _MDCPU_Unix md_unix;
773	};
774
775	#ifndef _PR_PTHREADS
776	#define _MD_INIT_LOCKS()
777	#endif
778	#define _MD_NEW_LOCK(lock) PR_SUCCESS
779	#define _MD_FREE_LOCK(lock)
780	#define _MD_LOCK(lock)
781	#define _MD_UNLOCK(lock)
782	#define _MD_INIT_IO()
783	#define _MD_IOQ_LOCK()
784	#define _MD_IOQ_UNLOCK()
785
786	#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
787	#define _MD_INIT_THREAD _MD_InitializeThread
788	#define _MD_EXIT_THREAD(thread)
789	#define _MD_SUSPEND_THREAD(thread)
790	#define _MD_RESUME_THREAD(thread)
791	#define _MD_CLEAN_THREAD(_thread)
792
793	extern PRStatus _MD_WAIT(struct PRThread *, PRIntervalTime timeout);
794	extern PRStatus _MD_WAKEUP_WAITER(struct PRThread *);
795	extern void _MD_YIELD(void);
796	extern PRStatus _MD_InitializeThread(PRThread *thread);
797	extern void _MD_SET_PRIORITY(struct _MDThread *thread,
798	PRThreadPriority newPri);
799	extern PRStatus _MD_CREATE_THREAD(PRThread thread, void (start) (void *),
800	PRThreadPriority priority, PRThreadScope scope, PRThreadState state,
801	PRUint32 stackSize);
802
803	NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
804	#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
805	NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
806	#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
807
808	/* The following defines the unwrapped versions of select() and poll(). */
809	extern int _select(int nfds, fd_set readfds, fd_set writefds,
810	fd_set exceptfds, struct timeval timeout);
811	#define _MD_SELECT _select
812
813	#include <stropts.h>
814	#include <poll.h>
815	#define _MD_POLL _poll
816	extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
817
818	PR_BEGIN_EXTERN_C
819
820	/*
821	** Missing function prototypes
822	*/
823	extern int gethostname (char *name, int namelen);
824
825	PR_END_EXTERN_C
826
827	#endif /* _PR_GLOBAL_THREADS_ONLY */
828
829	extern void _MD_solaris_map_sendfile_error(int err);
830
831	#endif /* nspr_solaris_defs_h___ */
832

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/libs/xpcom18a4/nsprpub/pr/include/md/_solaris.h@ 21017

Download in other formats: