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gecko-dev/nsprpub/pr/include/md/_solaris.h
wtchang%redhat.com f98d28fa08 Bugzilla Bug 260899: do not use the spinlock based implementation of 
PR_StackPush and PR_StackPop for Solaris x86.  The patch is contributed by
Julien Pierre of Sun.  r=wtc.
Modified Files: _solaris.h os_SunOS_x86.s
2005-02-24 02:58:45 +00:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nspr_solaris_defs_h___
#define nspr_solaris_defs_h___
/*
* Internal configuration macros
*/
#define PR_LINKER_ARCH "solaris"
#define _PR_SI_SYSNAME "SOLARIS"
#ifdef sparc
#define _PR_SI_ARCHITECTURE "sparc"
#elif defined(__x86_64)
#define _PR_SI_ARCHITECTURE "x86-64"
#elif defined(i386)
#define _PR_SI_ARCHITECTURE "x86"
#else
#error unknown processor
#endif
#define PR_DLL_SUFFIX ".so"
#define _PR_VMBASE 0x30000000
#define _PR_STACK_VMBASE 0x50000000
#define _MD_DEFAULT_STACK_SIZE (2*65536L)
#define _MD_MMAP_FLAGS MAP_SHARED
#undef HAVE_STACK_GROWING_UP
#ifndef HAVE_WEAK_IO_SYMBOLS
#define HAVE_WEAK_IO_SYMBOLS
#endif
#undef HAVE_WEAK_MALLOC_SYMBOLS
#define HAVE_DLL
#define USE_DLFCN
#define NEED_STRFTIME_LOCK
/*
* Intel x86 has atomic instructions.
*
* Sparc v8 does not have instructions to efficiently implement
* atomic increment/decrement operations. In the local threads
* only and pthreads versions, we use the default atomic routine
* implementation in pratom.c. The obsolete global threads only
* version uses a global mutex_t to implement the atomic routines
* in solaris.c, which is actually equivalent to the default
* implementation.
*
* 64-bit Solaris requires sparc v9, which has atomic instructions.
*/
#if defined(i386) || defined(_PR_GLOBAL_THREADS_ONLY) || defined(IS_64)
#define _PR_HAVE_ATOMIC_OPS
#endif
#define _PR_POLL_AVAILABLE
#define _PR_USE_POLL
#define _PR_STAT_HAS_ST_ATIM
#ifdef SOLARIS2_5
#define _PR_HAVE_SYSV_SEMAPHORES
#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
#else
#define _PR_HAVE_POSIX_SEMAPHORES
#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY
#endif
#define _PR_HAVE_GETIPNODEBYNAME
#define _PR_HAVE_GETIPNODEBYADDR
#define _PR_HAVE_GETADDRINFO
#define _PR_INET6_PROBE
#define _PR_ACCEPT_INHERIT_NONBLOCK
#ifdef _PR_INET6
#define _PR_HAVE_INET_NTOP
#else
#define AF_INET6 26
struct addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
size_t ai_addrlen;
char *ai_canonname;
struct sockaddr *ai_addr;
struct addrinfo *ai_next;
};
#define AI_CANONNAME 0x0010
#define AI_V4MAPPED 0x0001
#define AI_ALL 0x0002
#define AI_ADDRCONFIG 0x0004
#define _PR_HAVE_MD_SOCKADDR_IN6
/* isomorphic to struct in6_addr on Solaris 8 */
struct _md_in6_addr {
union {
PRUint8 _S6_u8[16];
PRUint32 _S6_u32[4];
PRUint32 __S6_align;
} _S6_un;
};
/* isomorphic to struct sockaddr_in6 on Solaris 8 */
struct _md_sockaddr_in6 {
PRUint16 sin6_family;
PRUint16 sin6_port;
PRUint32 sin6_flowinfo;
struct _md_in6_addr sin6_addr;
PRUint32 sin6_scope_id;
PRUint32 __sin6_src_id;
};
#endif
#if defined(_PR_GLOBAL_THREADS_ONLY) || defined(_PR_PTHREADS)
#define _PR_HAVE_GETHOST_R
#define _PR_HAVE_GETHOST_R_POINTER
#endif
#include "prinrval.h"
NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
#if defined(_PR_HAVE_ATOMIC_OPS)
/*
** Atomic Operations
*/
#define _MD_INIT_ATOMIC()
NSPR_API(PRInt32) _MD_AtomicIncrement(PRInt32 *val);
#define _MD_ATOMIC_INCREMENT _MD_AtomicIncrement
NSPR_API(PRInt32) _MD_AtomicAdd(PRInt32 *ptr, PRInt32 val);
#define _MD_ATOMIC_ADD _MD_AtomicAdd
NSPR_API(PRInt32) _MD_AtomicDecrement(PRInt32 *val);
#define _MD_ATOMIC_DECREMENT _MD_AtomicDecrement
NSPR_API(PRInt32) _MD_AtomicSet(PRInt32 *val, PRInt32 newval);
#define _MD_ATOMIC_SET _MD_AtomicSet
#endif /* _PR_HAVE_ATOMIC_OPS */
#if defined(_PR_PTHREADS)
NSPR_API(void) _MD_EarlyInit(void);
#define _MD_EARLY_INIT _MD_EarlyInit
#define _MD_FINAL_INIT _PR_UnixInit
#elif defined(_PR_GLOBAL_THREADS_ONLY)
#include "prthread.h"
#include <ucontext.h>
/*
** Iinitialization Related definitions
*/
NSPR_API(void) _MD_EarlyInit(void);
#define _MD_EARLY_INIT _MD_EarlyInit
#define _MD_FINAL_INIT _PR_UnixInit
#define _MD_GET_SP(threadp) threadp->md.sp
/*
** Clean-up the thread machine dependent data structure
*/
#define _MD_INIT_THREAD _MD_InitializeThread
#define _MD_INIT_ATTACHED_THREAD _MD_InitializeThread
NSPR_API(PRStatus) _MD_CreateThread(PRThread *thread,
void (*start)(void *),
PRThreadPriority priority,
PRThreadScope scope,
PRThreadState state,
PRUint32 stackSize);
#define _MD_CREATE_THREAD _MD_CreateThread
#define _PR_CONTEXT_TYPE ucontext_t
#define CONTEXT(_thread) (&(_thread)->md.context)
#include <thread.h>
#include <sys/lwp.h>
#include <synch.h>
extern struct PRLock *_pr_schedLock;
/*
** Thread Local Storage
*/
#define THREAD_KEY_T thread_key_t
extern struct PRThread *_pr_attached_thread_tls();
extern struct PRThread *_pr_current_thread_tls();
extern struct _PRCPU *_pr_current_cpu_tls();
extern struct PRThread *_pr_last_thread_tls();
extern THREAD_KEY_T threadid_key;
extern THREAD_KEY_T cpuid_key;
extern THREAD_KEY_T last_thread_key;
#define _MD_GET_ATTACHED_THREAD() _pr_attached_thread_tls()
#define _MD_CURRENT_THREAD() _pr_current_thread_tls()
#define _MD_CURRENT_CPU() _pr_current_cpu_tls()
#define _MD_LAST_THREAD() _pr_last_thread_tls()
#define _MD_SET_CURRENT_THREAD(newval) \
PR_BEGIN_MACRO \
thr_setspecific(threadid_key, (void *)newval); \
PR_END_MACRO
#define _MD_SET_CURRENT_CPU(newval) \
PR_BEGIN_MACRO \
thr_setspecific(cpuid_key, (void *)newval); \
PR_END_MACRO
#define _MD_SET_LAST_THREAD(newval) \
PR_BEGIN_MACRO \
thr_setspecific(last_thread_key, (void *)newval); \
PR_END_MACRO
#define _MD_CLEAN_THREAD(_thread) _MD_cleanup_thread(_thread)
extern void _MD_exit_thread(PRThread *thread);
#define _MD_EXIT_THREAD(thread) _MD_exit_thread(thread)
#define _MD_SUSPEND_THREAD(thread) _MD_Suspend(thread)
#define _MD_RESUME_THREAD(thread) thr_continue((thread)->md.handle)
/* XXXX Needs to be defined - Prashant */
#define _MD_SUSPEND_CPU(cpu)
#define _MD_RESUME_CPU(cpu)
extern void _MD_Begin_SuspendAll(void);
extern void _MD_End_SuspendAll(void);
extern void _MD_End_ResumeAll(void);
#define _MD_BEGIN_SUSPEND_ALL() _MD_Begin_SuspendAll()
#define _MD_BEGIN_RESUME_ALL()
#define _MD_END_SUSPEND_ALL() _MD_End_SuspendAll()
#define _MD_END_RESUME_ALL() _MD_End_ResumeAll()
#define _MD_INIT_LOCKS()
#define _MD_NEW_LOCK(md_lockp) (mutex_init(&((md_lockp)->lock),USYNC_THREAD,NULL) ? PR_FAILURE : PR_SUCCESS)
#define _MD_FREE_LOCK(md_lockp) mutex_destroy(&((md_lockp)->lock))
#define _MD_UNLOCK(md_lockp) mutex_unlock(&((md_lockp)->lock))
#define _MD_TEST_AND_LOCK(md_lockp) mutex_trylock(&((md_lockp)->lock))
struct _MDLock;
NSPR_API(void) _MD_lock(struct _MDLock *md_lock);
#undef PROFILE_LOCKS
#ifndef PROFILE_LOCKS
#define _MD_LOCK(md_lockp) _MD_lock(md_lockp)
#else
#define _MD_LOCK(md_lockp) \
PR_BEGIN_MACRO \
int rv = _MD_TEST_AND_LOCK(md_lockp); \
if (rv == 0) { \
(md_lockp)->hitcount++; \
} else { \
(md_lockp)->misscount++; \
_MD_lock(md_lockp); \
} \
PR_END_MACRO
#endif
#define _PR_LOCK_HEAP() if (_pr_heapLock) _MD_LOCK(&_pr_heapLock->md)
#define _PR_UNLOCK_HEAP() if (_pr_heapLock) _MD_UNLOCK(&_pr_heapLock->md)
#define _MD_ATTACH_THREAD(threadp)
#define THR_KEYCREATE thr_keycreate
#define THR_SELF thr_self
#define _MD_NEW_CV(condp) cond_init(&((condp)->cv), USYNC_THREAD, 0)
#define COND_WAIT(condp, mutexp) cond_wait(condp, mutexp)
#define COND_TIMEDWAIT(condp, mutexp, tspec) \
cond_timedwait(condp, mutexp, tspec)
#define _MD_NOTIFY_CV(condp, lockp) cond_signal(&((condp)->cv))
#define _MD_NOTIFYALL_CV(condp,unused) cond_broadcast(&((condp)->cv))
#define _MD_FREE_CV(condp) cond_destroy(&((condp)->cv))
#define _MD_YIELD() thr_yield()
#include <time.h>
/*
* Because clock_gettime() on Solaris/x86 2.4 always generates a
* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
* which is implemented using gettimeofday().
*/
#if defined(i386) && defined(SOLARIS2_4)
extern int _pr_solx86_clock_gettime(clockid_t clock_id, struct timespec *tp);
#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
#else
#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
#endif /* i386 && SOLARIS2_4 */
#define MUTEX_T mutex_t
#define COND_T cond_t
#define _MD_NEW_SEM(md_semp,_val) sema_init(&((md_semp)->sem),_val,USYNC_THREAD,NULL)
#define _MD_DESTROY_SEM(md_semp) sema_destroy(&((md_semp)->sem))
#define _MD_WAIT_SEM(md_semp) sema_wait(&((md_semp)->sem))
#define _MD_POST_SEM(md_semp) sema_post(&((md_semp)->sem))
#define _MD_SAVE_ERRNO(_thread)
#define _MD_RESTORE_ERRNO(_thread)
#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
extern struct _MDLock _pr_ioq_lock;
#define _MD_IOQ_LOCK() _MD_LOCK(&_pr_ioq_lock)
#define _MD_IOQ_UNLOCK() _MD_UNLOCK(&_pr_ioq_lock)
extern PRStatus _MD_wait(struct PRThread *, PRIntervalTime timeout);
#define _MD_WAIT _MD_wait
extern PRStatus _MD_WakeupWaiter(struct PRThread *);
#define _MD_WAKEUP_WAITER _MD_WakeupWaiter
NSPR_API(void) _MD_InitIO(void);
#define _MD_INIT_IO _MD_InitIO
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
PR_BEGIN_MACRO \
*status = PR_TRUE; \
PR_END_MACRO
#define _MD_SWITCH_CONTEXT(_thread)
#define _MD_RESTORE_CONTEXT(_newThread)
struct _MDLock {
MUTEX_T lock;
#ifdef PROFILE_LOCKS
PRInt32 hitcount;
PRInt32 misscount;
#endif
};
struct _MDCVar {
COND_T cv;
};
struct _MDSemaphore {
sema_t sem;
};
struct _MDThread {
_PR_CONTEXT_TYPE context;
thread_t handle;
lwpid_t lwpid;
uint_t sp; /* stack pointer */
uint_t threadID; /* ptr to solaris-internal thread id structures */
struct _MDSemaphore waiter_sem;
};
struct _MDThreadStack {
PRInt8 notused;
};
struct _MDSegment {
PRInt8 notused;
};
/*
* md-specific cpu structure field, common to all Unix platforms
*/
#define _PR_MD_MAX_OSFD FD_SETSIZE
struct _MDCPU_Unix {
PRCList ioQ;
PRUint32 ioq_timeout;
PRInt32 ioq_max_osfd;
PRInt32 ioq_osfd_cnt;
#ifndef _PR_USE_POLL
fd_set fd_read_set, fd_write_set, fd_exception_set;
PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
fd_exception_cnt[_PR_MD_MAX_OSFD];
#else
struct pollfd *ioq_pollfds;
int ioq_pollfds_size;
#endif /* _PR_USE_POLL */
};
#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
struct _MDCPU {
struct _MDCPU_Unix md_unix;
};
/* The following defines the unwrapped versions of select() and poll(). */
extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds, struct timeval *timeout);
#define _MD_SELECT _select
#include <poll.h>
#define _MD_POLL _poll
extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
PR_BEGIN_EXTERN_C
/*
** Missing function prototypes
*/
extern int gethostname (char *name, int namelen);
PR_END_EXTERN_C
#else /* _PR_GLOBAL_THREADS_ONLY */
/*
* LOCAL_THREADS_ONLY implementation on Solaris
*/
#include "prthread.h"
#include <errno.h>
#include <ucontext.h>
#include <sys/stack.h>
#include <synch.h>
/*
** Iinitialization Related definitions
*/
NSPR_API(void) _MD_EarlyInit(void);
NSPR_API(void) _MD_SolarisInit();
#define _MD_EARLY_INIT _MD_EarlyInit
#define _MD_FINAL_INIT _MD_SolarisInit
#define _MD_INIT_THREAD _MD_InitializeThread
#ifdef USE_SETJMP
#include <setjmp.h>
#define _PR_CONTEXT_TYPE jmp_buf
#ifdef sparc
#define _MD_GET_SP(_t) (_t)->md.context[2]
#else
#define _MD_GET_SP(_t) (_t)->md.context[4]
#endif
#define PR_NUM_GCREGS _JBLEN
#define CONTEXT(_thread) (_thread)->md.context
#else /* ! USE_SETJMP */
#ifdef sparc
#define _PR_CONTEXT_TYPE ucontext_t
#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[REG_SP]
/*
** Sparc's use register windows. the _MD_GetRegisters for the sparc's
** doesn't actually store anything into the argument buffer; instead the
** register windows are homed to the stack. I assume that the stack
** always has room for the registers to spill to...
*/
#define PR_NUM_GCREGS 0
#else
#define _PR_CONTEXT_TYPE unsigned int edi; sigset_t oldMask, blockMask; ucontext_t
#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[USP]
#define PR_NUM_GCREGS _JBLEN
#endif
#define CONTEXT(_thread) (&(_thread)->md.context)
#endif /* ! USE_SETJMP */
#include <time.h>
/*
* Because clock_gettime() on Solaris/x86 always generates a
* segmentation fault, we use an emulated version _pr_solx86_clock_gettime(),
* which is implemented using gettimeofday().
*/
#ifdef i386
#define GETTIME(tt) _pr_solx86_clock_gettime(CLOCK_REALTIME, (tt))
#else
#define GETTIME(tt) clock_gettime(CLOCK_REALTIME, (tt))
#endif /* i386 */
#define _MD_SAVE_ERRNO(_thread) (_thread)->md.errcode = errno;
#define _MD_RESTORE_ERRNO(_thread) errno = (_thread)->md.errcode;
#ifdef sparc
#ifdef USE_SETJMP
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
PR_BEGIN_MACRO \
int *context = (_thread)->md.context; \
*status = PR_TRUE; \
(void) setjmp(context); \
(_thread)->md.context[1] = (int) ((_sp) - 64); \
(_thread)->md.context[2] = (int) _main; \
(_thread)->md.context[3] = (int) _main + 4; \
_thread->no_sched = 0; \
PR_END_MACRO
#define _MD_SWITCH_CONTEXT(_thread) \
if (!setjmp(CONTEXT(_thread))) { \
_MD_SAVE_ERRNO(_thread) \
_MD_SET_LAST_THREAD(_thread); \
_MD_SET_CURRENT_THREAD(_thread); \
_PR_Schedule(); \
}
#define _MD_RESTORE_CONTEXT(_newThread) \
{ \
_MD_RESTORE_ERRNO(_newThread) \
_MD_SET_CURRENT_THREAD(_newThread); \
longjmp(CONTEXT(_newThread), 1); \
}
#else
/*
** Initialize the thread context preparing it to execute _main.
*/
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
PR_BEGIN_MACRO \
ucontext_t *uc = CONTEXT(_thread); \
*status = PR_TRUE; \
getcontext(uc); \
uc->uc_stack.ss_sp = (char *) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
uc->uc_stack.ss_size = _thread->stack->stackSize; \
uc->uc_stack.ss_flags = 0; /* ? */ \
uc->uc_mcontext.gregs[REG_SP] = (unsigned int) uc->uc_stack.ss_sp; \
uc->uc_mcontext.gregs[REG_PC] = (unsigned int) _main; \
uc->uc_mcontext.gregs[REG_nPC] = (unsigned int) ((char*)_main)+4; \
uc->uc_flags = UC_ALL; \
_thread->no_sched = 0; \
PR_END_MACRO
/*
** Switch away from the current thread context by saving its state and
** calling the thread scheduler. Reload cpu when we come back from the
** context switch because it might have changed.
*/
#define _MD_SWITCH_CONTEXT(_thread) \
PR_BEGIN_MACRO \
if (!getcontext(CONTEXT(_thread))) { \
_MD_SAVE_ERRNO(_thread); \
_MD_SET_LAST_THREAD(_thread); \
_PR_Schedule(); \
} \
PR_END_MACRO
/*
** Restore a thread context that was saved by _MD_SWITCH_CONTEXT or
** initialized by _MD_INIT_CONTEXT.
*/
#define _MD_RESTORE_CONTEXT(_newThread) \
PR_BEGIN_MACRO \
ucontext_t *uc = CONTEXT(_newThread); \
uc->uc_mcontext.gregs[11] = 1; \
_MD_RESTORE_ERRNO(_newThread); \
_MD_SET_CURRENT_THREAD(_newThread); \
setcontext(uc); \
PR_END_MACRO
#endif
#else /* x86 solaris */
#ifdef USE_SETJMP
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
PR_BEGIN_MACRO \
*status = PR_TRUE; \
if (setjmp(CONTEXT(_thread))) _main(); \
_MD_GET_SP(_thread) = (int) ((_sp) - 64); \
PR_END_MACRO
#define _MD_SWITCH_CONTEXT(_thread) \
if (!setjmp(CONTEXT(_thread))) { \
_MD_SAVE_ERRNO(_thread) \
_PR_Schedule(); \
}
#define _MD_RESTORE_CONTEXT(_newThread) \
{ \
_MD_RESTORE_ERRNO(_newThread) \
_MD_SET_CURRENT_THREAD(_newThread); \
longjmp(CONTEXT(_newThread), 1); \
}
#else /* USE_SETJMP */
#define WINDOWSIZE 0
int getedi(void);
void setedi(int);
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
PR_BEGIN_MACRO \
ucontext_t *uc = CONTEXT(_thread); \
*status = PR_TRUE; \
getcontext(uc); \
/* Force sp to be double aligned! */ \
uc->uc_mcontext.gregs[USP] = (int) ((unsigned long)(_sp - WINDOWSIZE - SA(MINFRAME)) & 0xfffffff8); \
uc->uc_mcontext.gregs[PC] = (int) _main; \
(_thread)->no_sched = 0; \
PR_END_MACRO
/* getcontext() may return 1, contrary to what the man page says */
#define _MD_SWITCH_CONTEXT(_thread) \
PR_BEGIN_MACRO \
ucontext_t *uc = CONTEXT(_thread); \
PR_ASSERT(_thread->no_sched); \
sigfillset(&((_thread)->md.blockMask)); \
sigprocmask(SIG_BLOCK, &((_thread)->md.blockMask), \
&((_thread)->md.oldMask)); \
(_thread)->md.edi = getedi(); \
if (! getcontext(uc)) { \
sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
uc->uc_mcontext.gregs[EDI] = (_thread)->md.edi; \
_MD_SAVE_ERRNO(_thread) \
_MD_SET_LAST_THREAD(_thread); \
_PR_Schedule(); \
} else { \
sigprocmask(SIG_SETMASK, &((_thread)->md.oldMask), NULL); \
setedi((_thread)->md.edi); \
PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD()); \
_MD_LAST_THREAD()->no_sched = 0; \
} \
PR_END_MACRO
/*
** Restore a thread context, saved by _PR_SWITCH_CONTEXT
*/
#define _MD_RESTORE_CONTEXT(_newthread) \
PR_BEGIN_MACRO \
ucontext_t *uc = CONTEXT(_newthread); \
uc->uc_mcontext.gregs[EAX] = 1; \
_MD_RESTORE_ERRNO(_newthread) \
_MD_SET_CURRENT_THREAD(_newthread); \
(_newthread)->no_sched = 1; \
setcontext(uc); \
PR_END_MACRO
#endif /* USE_SETJMP */
#endif /* sparc */
struct _MDLock {
PRInt8 notused;
};
struct _MDCVar {
PRInt8 notused;
};
struct _MDSemaphore {
PRInt8 notused;
};
struct _MDThread {
_PR_CONTEXT_TYPE context;
int errcode;
int id;
};
struct _MDThreadStack {
PRInt8 notused;
};
struct _MDSegment {
PRInt8 notused;
};
/*
* md-specific cpu structure field
*/
#define _PR_MD_MAX_OSFD FD_SETSIZE
struct _MDCPU_Unix {
PRCList ioQ;
PRUint32 ioq_timeout;
PRInt32 ioq_max_osfd;
PRInt32 ioq_osfd_cnt;
#ifndef _PR_USE_POLL
fd_set fd_read_set, fd_write_set, fd_exception_set;
PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
fd_exception_cnt[_PR_MD_MAX_OSFD];
#else
struct pollfd *ioq_pollfds;
int ioq_pollfds_size;
#endif /* _PR_USE_POLL */
};
#define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ)
#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
#define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set)
#define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt)
#define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set)
#define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt)
#define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set)
#define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt)
#define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout)
#define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd)
#define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt)
#define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds)
#define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size)
#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32
struct _MDCPU {
struct _MDCPU_Unix md_unix;
};
#ifndef _PR_PTHREADS
#define _MD_INIT_LOCKS()
#endif
#define _MD_NEW_LOCK(lock) PR_SUCCESS
#define _MD_FREE_LOCK(lock)
#define _MD_LOCK(lock)
#define _MD_UNLOCK(lock)
#define _MD_INIT_IO()
#define _MD_IOQ_LOCK()
#define _MD_IOQ_UNLOCK()
#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
#define _MD_INIT_THREAD _MD_InitializeThread
#define _MD_EXIT_THREAD(thread)
#define _MD_SUSPEND_THREAD(thread)
#define _MD_RESUME_THREAD(thread)
#define _MD_CLEAN_THREAD(_thread)
extern PRStatus _MD_WAIT(struct PRThread *, PRIntervalTime timeout);
extern PRStatus _MD_WAKEUP_WAITER(struct PRThread *);
extern void _MD_YIELD(void);
extern PRStatus _MD_InitializeThread(PRThread *thread);
extern void _MD_SET_PRIORITY(struct _MDThread *thread,
PRThreadPriority newPri);
extern PRStatus _MD_CREATE_THREAD(PRThread *thread, void (*start) (void *),
PRThreadPriority priority, PRThreadScope scope, PRThreadState state,
PRUint32 stackSize);
NSPR_API(PRIntervalTime) _MD_Solaris_GetInterval(void);
#define _MD_GET_INTERVAL _MD_Solaris_GetInterval
NSPR_API(PRIntervalTime) _MD_Solaris_TicksPerSecond(void);
#define _MD_INTERVAL_PER_SEC _MD_Solaris_TicksPerSecond
/* The following defines the unwrapped versions of select() and poll(). */
extern int _select(int nfds, fd_set *readfds, fd_set *writefds,
fd_set *exceptfds, struct timeval *timeout);
#define _MD_SELECT _select
#include <stropts.h>
#include <poll.h>
#define _MD_POLL _poll
extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
PR_BEGIN_EXTERN_C
/*
** Missing function prototypes
*/
extern int gethostname (char *name, int namelen);
PR_END_EXTERN_C
#endif /* _PR_GLOBAL_THREADS_ONLY */
extern void _MD_solaris_map_sendfile_error(int err);
#endif /* nspr_solaris_defs_h___ */
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