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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /nsprpub/pr/include/md/_irix.h | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'nsprpub/pr/include/md/_irix.h')
-rw-r--r-- | nsprpub/pr/include/md/_irix.h | 438 |
1 files changed, 438 insertions, 0 deletions
diff --git a/nsprpub/pr/include/md/_irix.h b/nsprpub/pr/include/md/_irix.h new file mode 100644 index 000000000..04413b992 --- /dev/null +++ b/nsprpub/pr/include/md/_irix.h @@ -0,0 +1,438 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef nspr_irix_defs_h___ +#define nspr_irix_defs_h___ + +#define _PR_HAVE_ATOMIC_CAS + +/* + * MipsPro assembler defines _LANGUAGE_ASSEMBLY + */ +#ifndef _LANGUAGE_ASSEMBLY + +#include "prclist.h" +#include "prthread.h" +#include <sys/ucontext.h> + +/* + * Internal configuration macros + */ + +#define PR_LINKER_ARCH "irix" +#define _PR_SI_SYSNAME "IRIX" +#define _PR_SI_ARCHITECTURE "mips" +#define PR_DLL_SUFFIX ".so" + +#define _PR_VMBASE 0x30000000 +#define _PR_STACK_VMBASE 0x50000000 +#define _PR_NUM_GCREGS 9 +#define _MD_MMAP_FLAGS MAP_PRIVATE + +#define _MD_DEFAULT_STACK_SIZE 65536L +#define _MD_MIN_STACK_SIZE 16384L + +#undef HAVE_STACK_GROWING_UP +#define HAVE_WEAK_IO_SYMBOLS +#define HAVE_WEAK_MALLOC_SYMBOLS +#define HAVE_DLL +#define USE_DLFCN +#define _PR_HAVE_ATOMIC_OPS +#define _PR_POLL_AVAILABLE +#define _PR_USE_POLL +#define _PR_STAT_HAS_ST_ATIM +#define _PR_HAVE_OFF64_T +#define HAVE_POINTER_LOCALTIME_R +#define _PR_HAVE_POSIX_SEMAPHORES +#define PR_HAVE_POSIX_NAMED_SHARED_MEMORY +#define _PR_ACCEPT_INHERIT_NONBLOCK + +#ifdef _PR_INET6 +#define _PR_HAVE_INET_NTOP +#define _PR_HAVE_GETIPNODEBYNAME +#define _PR_HAVE_GETIPNODEBYADDR +#define _PR_HAVE_GETADDRINFO +#endif + +/* Initialization entry points */ +NSPR_API(void) _MD_EarlyInit(void); +#define _MD_EARLY_INIT _MD_EarlyInit + +NSPR_API(void) _MD_IrixInit(void); +#define _MD_FINAL_INIT _MD_IrixInit + +#define _MD_INIT_IO() + +/* Timer operations */ +NSPR_API(PRIntervalTime) _MD_IrixGetInterval(void); +#define _MD_GET_INTERVAL _MD_IrixGetInterval + +NSPR_API(PRIntervalTime) _MD_IrixIntervalPerSec(void); +#define _MD_INTERVAL_PER_SEC _MD_IrixIntervalPerSec + +/* GC operations */ +NSPR_API(void *) _MD_GetSP(PRThread *thread); +#define _MD_GET_SP _MD_GetSP + +/* The atomic operations */ +#include <mutex.h> +#define _MD_INIT_ATOMIC() +#define _MD_ATOMIC_INCREMENT(val) add_then_test((unsigned long*)val, 1) +#define _MD_ATOMIC_ADD(ptr, val) add_then_test((unsigned long*)ptr, (unsigned long)val) +#define _MD_ATOMIC_DECREMENT(val) add_then_test((unsigned long*)val, 0xffffffff) +#define _MD_ATOMIC_SET(val, newval) test_and_set((unsigned long*)val, newval) + +#if defined(_PR_PTHREADS) +#else /* defined(_PR_PTHREADS) */ + +/************************************************************************/ + +#include <setjmp.h> +#include <errno.h> +#include <unistd.h> +#include <bstring.h> +#include <sys/time.h> +#include <ulocks.h> +#include <sys/prctl.h> + + +/* + * Data region private to each sproc. This region is setup by calling + * mmap(...,MAP_LOCAL,...). The private data is mapped at the same + * address in every sproc, but every sproc gets a private mapping. + * + * Just make sure that this structure fits in a page, as only one page + * is allocated for the private region. + */ +struct sproc_private_data { + struct PRThread *me; + struct _PRCPU *cpu; + struct PRThread *last; + PRUintn intsOff; + int sproc_pid; +}; + +extern char *_nspr_sproc_private; + +#define _PR_PRDA() ((struct sproc_private_data *) _nspr_sproc_private) +#define _MD_SET_CURRENT_THREAD(_thread) _PR_PRDA()->me = (_thread) +#define _MD_THIS_THREAD() (_PR_PRDA()->me) +#define _MD_LAST_THREAD() (_PR_PRDA()->last) +#define _MD_SET_LAST_THREAD(_thread) _PR_PRDA()->last = (_thread) +#define _MD_CURRENT_CPU() (_PR_PRDA()->cpu) +#define _MD_SET_CURRENT_CPU(_cpu) _PR_PRDA()->cpu = (_cpu) +#define _MD_SET_INTSOFF(_val) (_PR_PRDA()->intsOff = _val) +#define _MD_GET_INTSOFF() (_PR_PRDA()->intsOff) + +#define _MD_SET_SPROC_PID(_val) (_PR_PRDA()->sproc_pid = _val) +#define _MD_GET_SPROC_PID() (_PR_PRDA()->sproc_pid) + +NSPR_API(struct PRThread*) _MD_get_attached_thread(void); +NSPR_API(struct PRThread*) _MD_get_current_thread(void); +#define _MD_GET_ATTACHED_THREAD() _MD_get_attached_thread() +#define _MD_CURRENT_THREAD() _MD_get_current_thread() + +#define _MD_CHECK_FOR_EXIT() { \ + if (_pr_irix_exit_now) { \ + _PR_POST_SEM(_pr_irix_exit_sem); \ + _MD_Wakeup_CPUs(); \ + _exit(0); \ + } \ + } + +#define _MD_ATTACH_THREAD(threadp) + +#define _MD_SAVE_ERRNO(_thread) (_thread)->md.errcode = errno; +#define _MD_RESTORE_ERRNO(_thread) errno = (_thread)->md.errcode; + +extern struct _PRCPU *_pr_primordialCPU; +extern usema_t *_pr_irix_exit_sem; +extern PRInt32 _pr_irix_exit_now; +extern int _pr_irix_primoridal_cpu_fd[]; +extern PRInt32 _pr_irix_process_exit; +extern PRInt32 _pr_irix_process_exit_code; + +/* Thread operations */ +#define _PR_LOCK_HEAP() { \ + PRIntn _is; \ + if (_pr_primordialCPU) { \ + if (_MD_GET_ATTACHED_THREAD() && \ + !_PR_IS_NATIVE_THREAD( \ + _MD_GET_ATTACHED_THREAD())) \ + _PR_INTSOFF(_is); \ + _PR_LOCK(_pr_heapLock); \ + } + +#define _PR_UNLOCK_HEAP() if (_pr_primordialCPU) { \ + _PR_UNLOCK(_pr_heapLock); \ + if (_MD_GET_ATTACHED_THREAD() && \ + !_PR_IS_NATIVE_THREAD( \ + _MD_GET_ATTACHED_THREAD())) \ + _PR_INTSON(_is); \ + } \ + } + +#define _PR_OPEN_POLL_SEM(_sem) usopenpollsema(_sem, 0666) +#define _PR_WAIT_SEM(_sem) uspsema(_sem) +#define _PR_POST_SEM(_sem) usvsema(_sem) + +#define _MD_CVAR_POST_SEM(threadp) usvsema((threadp)->md.cvar_pollsem) + +#define _MD_IOQ_LOCK() +#define _MD_IOQ_UNLOCK() + +struct _MDLock { + ulock_t lock; + usptr_t *arena; +}; + +/* + * disable pre-emption for the LOCAL threads when calling the arena lock + * routines + */ + +#define _PR_LOCK(lock) { \ + PRIntn _is; \ + PRThread *me = _MD_GET_ATTACHED_THREAD(); \ + if (me && !_PR_IS_NATIVE_THREAD(me)) \ + _PR_INTSOFF(_is); \ + ussetlock(lock); \ + if (me && !_PR_IS_NATIVE_THREAD(me)) \ + _PR_FAST_INTSON(_is); \ + } + +#define _PR_UNLOCK(lock) { \ + PRIntn _is; \ + PRThread *me = _MD_GET_ATTACHED_THREAD(); \ + if (me && !_PR_IS_NATIVE_THREAD(me)) \ + _PR_INTSOFF(_is); \ + usunsetlock(lock); \ + if (me && !_PR_IS_NATIVE_THREAD(me)) \ + _PR_FAST_INTSON(_is); \ + } + +NSPR_API(PRStatus) _MD_NEW_LOCK(struct _MDLock *md); +NSPR_API(void) _MD_FREE_LOCK(struct _MDLock *lockp); + +#define _MD_LOCK(_lockp) _PR_LOCK((_lockp)->lock) +#define _MD_UNLOCK(_lockp) _PR_UNLOCK((_lockp)->lock) +#define _MD_TEST_AND_LOCK(_lockp) (uscsetlock((_lockp)->lock, 1) == 0) + +extern ulock_t _pr_heapLock; + +struct _MDThread { + jmp_buf jb; + usptr_t *pollsem_arena; + usema_t *cvar_pollsem; + PRInt32 cvar_pollsemfd; + PRInt32 cvar_pollsem_select; /* acquire sem by calling select */ + PRInt32 cvar_wait; /* if 1, thread is waiting on cvar Q */ + PRInt32 id; + PRInt32 suspending_id; + int errcode; +}; + +struct _MDThreadStack { + PRInt8 notused; +}; + +struct _MDSemaphore { + usema_t *sem; +}; + +struct _MDCVar { + ulock_t mdcvar_lock; +}; + +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 { + PRInt32 id; + PRInt32 suspending_id; + struct _MDCPU_Unix md_unix; +}; + +/* +** Initialize the thread context preparing it to execute _main. +*/ +#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ + PR_BEGIN_MACRO \ + int *jb = (_thread)->md.jb; \ + *status = PR_TRUE; \ + (void) setjmp(jb); \ + (_thread)->md.jb[JB_SP] = (int) ((_sp) - 64); \ + (_thread)->md.jb[JB_PC] = (int) _main; \ + _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. +* +* XXX RUNQ lock needed before clearing _PR_NO_SCHED flag, because the +* thread may be unr RUNQ? +*/ +#define _MD_SWITCH_CONTEXT(_thread) \ + PR_BEGIN_MACRO \ + PR_ASSERT(_thread->no_sched); \ + if (!setjmp(_thread->md.jb)) { \ + _MD_SAVE_ERRNO(_thread) \ + _MD_SET_LAST_THREAD(_thread); \ + _PR_Schedule(); \ + } else { \ + PR_ASSERT(_MD_LAST_THREAD() !=_MD_CURRENT_THREAD()); \ + _MD_LAST_THREAD()->no_sched = 0; \ + } \ + 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 \ + int *jb = (_newThread)->md.jb; \ + _MD_RESTORE_ERRNO(_newThread) \ + _MD_SET_CURRENT_THREAD(_newThread); \ + _newThread->no_sched = 1; \ + longjmp(jb, 1); \ + PR_END_MACRO + +NSPR_API(PRStatus) _MD_InitThread(struct PRThread *thread, + PRBool wakeup_parent); +NSPR_API(PRStatus) _MD_InitAttachedThread(struct PRThread *thread, + PRBool wakeup_parent); +#define _MD_INIT_THREAD(thread) _MD_InitThread(thread, PR_TRUE) +#define _MD_INIT_ATTACHED_THREAD(thread) \ + _MD_InitAttachedThread(thread, PR_FALSE) + +NSPR_API(void) _MD_ExitThread(struct PRThread *thread); +#define _MD_EXIT_THREAD _MD_ExitThread + +NSPR_API(void) _MD_SuspendThread(struct PRThread *thread); +#define _MD_SUSPEND_THREAD _MD_SuspendThread + +NSPR_API(void) _MD_ResumeThread(struct PRThread *thread); +#define _MD_RESUME_THREAD _MD_ResumeThread + +NSPR_API(void) _MD_SuspendCPU(struct _PRCPU *thread); +#define _MD_SUSPEND_CPU _MD_SuspendCPU + +NSPR_API(void) _MD_ResumeCPU(struct _PRCPU *thread); +#define _MD_RESUME_CPU _MD_ResumeCPU + +#define _MD_BEGIN_SUSPEND_ALL() +#define _MD_END_SUSPEND_ALL() +#define _MD_BEGIN_RESUME_ALL() +#define _MD_END_RESUME_ALL() + +NSPR_API(void) _MD_InitLocks(void); +#define _MD_INIT_LOCKS _MD_InitLocks + +NSPR_API(void) _MD_CleanThread(struct PRThread *thread); +#define _MD_CLEAN_THREAD _MD_CleanThread + +#define _MD_YIELD() sginap(0) + +/* The _PR_MD_WAIT_LOCK and _PR_MD_WAKEUP_WAITER functions put to sleep and + * awaken a thread which is waiting on a lock or cvar. + */ +NSPR_API(PRStatus) _MD_wait(struct PRThread *, PRIntervalTime timeout); +#define _MD_WAIT _MD_wait + +NSPR_API(void) _PR_MD_primordial_cpu(); +NSPR_API(void) _PR_MD_WAKEUP_PRIMORDIAL_CPU(); + +NSPR_API(PRStatus) _MD_WakeupWaiter(struct PRThread *); +#define _MD_WAKEUP_WAITER _MD_WakeupWaiter + +NSPR_API(void ) _MD_exit(PRIntn status); +#define _MD_EXIT _MD_exit + +#include "prthread.h" + +NSPR_API(void) _MD_SetPriority(struct _MDThread *thread, + PRThreadPriority newPri); +#define _MD_SET_PRIORITY _MD_SetPriority + +NSPR_API(PRStatus) _MD_CreateThread( + struct PRThread *thread, + void (*start) (void *), + PRThreadPriority priority, + PRThreadScope scope, + PRThreadState state, + PRUint32 stackSize); +#define _MD_CREATE_THREAD _MD_CreateThread + +extern void _MD_CleanupBeforeExit(void); +#define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit + +NSPR_API(void) _PR_MD_PRE_CLEANUP(PRThread *me); + + +/* 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); + + +#define HAVE_THREAD_AFFINITY 1 + +NSPR_API(PRInt32) _MD_GetThreadAffinityMask(PRThread *unused, PRUint32 *mask); +#define _MD_GETTHREADAFFINITYMASK _MD_GetThreadAffinityMask + +NSPR_API(void) _MD_InitRunningCPU(struct _PRCPU *cpu); +#define _MD_INIT_RUNNING_CPU _MD_InitRunningCPU + +#endif /* defined(_PR_PTHREADS) */ + +#endif /* _LANGUAGE_ASSEMBLY */ + +#endif /* nspr_irix_defs_h___ */ |