/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _THR_UBERDATA_H #define _THR_UBERDATA_H #pragma ident "%Z%%M% %I% %E% SMI" #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "libc_int.h" #include "tdb_agent.h" #include "thr_debug.h" /* * This is an implementation-specific include file for threading support. * It is not to be seen by the clients of the library. * * This file also describes uberdata in libc. * * The term "uberdata" refers to data that is unique and visible across * all link maps. The name is meant to imply that such data is truly * global, not just locally global to a particular link map. * * See the Linker and Libraries Guide for a full description of alternate * link maps and how they are set up and used. * * Alternate link maps implement multiple global namespaces within a single * process. There may be multiple instances of identical dynamic libraries * loaded in a process's address space at the same time, each on a different * link map (as determined by the dynamic linker), each with its own set of * global variables. Which particular instance of a global variable is seen * by a thread running in the process is determined by the link map on which * the thread happens to be executing at the time. * * However, there are aspects of a process that are unique across all * link maps, in particular the structures used to implement threads * of control (in Sparc terminology, there is only one %g7 regardless * of the link map on which the thread is executing). * * All uberdata is referenced from a base pointer in the thread's ulwp_t * structure (which is also uberdata). All allocations and deallocations * of uberdata are made via the uberdata-aware lmalloc() and lfree() * interfaces (malloc() and free() are simply locally-global). */ /* * Special libc-private access to errno. * We do this so that references to errno do not invoke the dynamic linker. */ #undef errno #define errno (*curthread->ul_errnop) /* * See for the reasons for these values * and why they are different for sparc and intel. */ #if defined(__sparc) /* lock.lock64.pad[x] 4 5 6 7 */ #define LOCKMASK 0xff000000 #define WAITERMASK 0x000000ff #define SPINNERMASK 0x00ff0000 #define SPINNERSHIFT 16 #define WAITER 0x00000001 #define LOCKSET 0xff #define LOCKCLEAR 0 #define PIDSHIFT 32 #define LOCKMASK64 0xffffffffff000000ULL #define LOCKBYTE64 0x00000000ff000000ULL #define WAITERMASK64 0x00000000000000ffULL #define SPINNERMASK64 0x0000000000ff0000ULL #elif defined(__x86) /* lock.lock64.pad[x] 7 6 5 4 */ #define LOCKMASK 0xff000000 #define WAITERMASK 0x00ff0000 #define SPINNERMASK 0x0000ff00 #define SPINNERSHIFT 8 #define WAITER 0x00010000 #define LOCKSET 0x01 #define LOCKCLEAR 0 #define PIDSHIFT 0 #define LOCKMASK64 0xff000000ffffffffULL #define LOCKBYTE64 0x0100000000000000ULL #define WAITERMASK64 0x00ff000000000000ULL #define SPINNERMASK64 0x0000ff0000000000ULL #else #error "neither __sparc nor __x86 is defined" #endif /* * Fetch the owner of a USYNC_THREAD mutex. * Don't use this with process-shared mutexes; * the owing thread may be in a different process. */ #define MUTEX_OWNER(mp) ((ulwp_t *)(uintptr_t)(mp)->mutex_owner) /* * Test if a thread owns a process-private (USYNC_THREAD) mutex. * This is inappropriate for a process-shared (USYNC_PROCESS) mutex. * The 'mp' argument must not have side-effects since it is evaluated twice. */ #define MUTEX_OWNED(mp, thrp) \ ((mp)->mutex_lockw != 0 && MUTEX_OWNER(mp) == thrp) /* * uberflags.uf_tdb_register_sync is an interface with libc_db to enable the * collection of lock statistics by a debugger or other collecting tool. * * uberflags.uf_thread_error_detection is set by an environment variable: * _THREAD_ERROR_DETECTION * 0 == no detection of locking primitive errors. * 1 == detect errors and issue a warning message. * 2 == detect errors, issue a warning message, and dump core. * * We bundle these together in uberflags.uf_trs_ted to make a test of either * being non-zero a single memory reference (for speed of mutex_lock(), etc). * * uberflags.uf_mt is set non-zero when the first thread (in addition * to the main thread) is created. * * We bundle all these flags together in uberflags.uf_all to make a test * of any being non-zero a single memory reference (again, for speed). */ typedef union { int uf_all; /* combined all flags */ struct { short h_pad; short h_trs_ted; /* combined reg sync & error detect */ } uf_h; struct { char x_mt; char x_pad; char x_tdb_register_sync; char x_thread_error_detection; } uf_x; } uberflags_t; #define uf_mt uf_x.x_mt #define uf_tdb_register_sync uf_x.x_tdb_register_sync #define uf_thread_error_detection uf_x.x_thread_error_detection #define uf_trs_ted uf_h.h_trs_ted /* both of the above */ /* * NOTE WELL: * To enable further optimization, the "ul_schedctl_called" member * of the ulwp_t structure (below) serves double-duty: * 1. If NULL, it means that the thread must call __schedctl() * to set up its schedctl mappings before acquiring a mutex. * This is required by the implementation of adaptive mutex locking. * 2. If non-NULL, it points to uberdata.uberflags, so that tests of * uberflags can be made without additional memory references. * This allows the common case of _mutex_lock() and _mutex_unlock() for * USYNC_THREAD mutexes with no error detection and no lock statistics * to be optimized for speed. */ /* double the default stack size for 64-bit processes */ #ifdef _LP64 #define MINSTACK (8 * 1024) #define DEFAULTSTACK (2 * 1024 * 1024) #else #define MINSTACK (4 * 1024) #define DEFAULTSTACK (1024 * 1024) #endif #define TSD_NKEYS _POSIX_THREAD_KEYS_MAX #define THREAD_MIN_PRIORITY 0 #define THREAD_MAX_PRIORITY 127 #define PRIO_SET 0 /* set priority and policy */ #define PRIO_SET_PRIO 1 /* set priority only */ #define PRIO_INHERIT 2 #define PRIO_DISINHERIT 3 #define MUTEX_TRY 0 #define MUTEX_LOCK 1 #if defined(__x86) typedef struct { /* structure returned by fnstenv */ int fctrl; /* control word */ int fstat; /* status word (flags, etc) */ int ftag; /* tag of which regs busy */ int misc[4]; /* other stuff, 28 bytes total */ } fpuenv_t; #ifdef _SYSCALL32 typedef fpuenv_t fpuenv32_t; #endif /* _SYSCALL32 */ #elif defined(__sparc) typedef struct { /* fp state structure */ greg_t fsr; greg_t fpu_en; } fpuenv_t; #ifdef _SYSCALL32 typedef struct { greg32_t fsr; greg32_t fpu_en; } fpuenv32_t; #endif /* _SYSCALL32 */ #endif /* __x86 */ #if defined(__x86) extern void ht_pause(void); /* "pause" instruction */ #define SMT_PAUSE() ht_pause() #else #define SMT_PAUSE() #endif /* __x86 */ /* * Cleanup handler related data. * This structure is exported as _cleanup_t in pthread.h. * pthread.h exports only the size of this structure, so check * _cleanup_t in pthread.h before making any change here. */ typedef struct __cleanup { struct __cleanup *next; /* pointer to next handler */ caddr_t fp; /* current frame pointer */ void (*func)(void *); /* cleanup handler address */ void *arg; /* handler's argument */ } __cleanup_t; /* * Thread-Specific Data (TSD) * TSD_NFAST includes the invalid key zero, so there * are really only (TSD_NFAST - 1) fast key slots. */ typedef void (*PFrV)(void *); #define TSD_UNALLOCATED ((PFrV)1) #define TSD_NFAST 9 /* * The tsd union is designed to burn a little memory (9 words) to make * lookups blindingly fast. Note that tsd_nalloc could be placed at the * end of the pad region to increase the likelihood that it falls on the * same cache line as the data. */ typedef union tsd { uint_t tsd_nalloc; /* Amount of allocated storage */ void *tsd_pad[TSD_NFAST]; void *tsd_data[1]; } tsd_t; typedef struct { mutex_t tsdm_lock; /* Lock protecting the data */ uint_t tsdm_nkeys; /* Number of allocated keys */ uint_t tsdm_nused; /* Number of used keys */ PFrV *tsdm_destro; /* Per-key destructors */ char tsdm_pad[64 - /* pad to 64 bytes */ (sizeof (mutex_t) + 2 * sizeof (uint_t) + sizeof (PFrV *))]; } tsd_metadata_t; #ifdef _SYSCALL32 typedef union tsd32 { uint_t tsd_nalloc; /* Amount of allocated storage */ caddr32_t tsd_pad[TSD_NFAST]; caddr32_t tsd_data[1]; } tsd32_t; typedef struct { mutex_t tsdm_lock; /* Lock protecting the data */ uint_t tsdm_nkeys; /* Number of allocated keys */ uint_t tsdm_nused; /* Number of used keys */ caddr32_t tsdm_destro; /* Per-key destructors */ char tsdm_pad[64 - /* pad to 64 bytes */ (sizeof (mutex_t) + 2 * sizeof (uint_t) + sizeof (caddr32_t))]; } tsd_metadata32_t; #endif /* _SYSCALL32 */ /* * Thread-Local Storage (TLS) */ typedef struct { void *tls_data; size_t tls_size; } tls_t; typedef struct { mutex_t tls_lock; /* Lock protecting the data */ tls_t tls_modinfo; /* Root of all TLS_modinfo data */ tls_t static_tls; /* Template for static TLS */ char tls_pad[64 - /* pad to 64 bytes */ (sizeof (mutex_t) + 2 * sizeof (tls_t))]; } tls_metadata_t; #ifdef _SYSCALL32 typedef struct { caddr32_t tls_data; size32_t tls_size; } tls32_t; typedef struct { mutex_t tls_lock; /* Lock protecting the data */ tls32_t tls_modinfo; /* Root of all TLS_modinfo data */ tls32_t static_tls; /* Template for static TLS */ char tls_pad[64 - /* pad to 64 bytes */ (sizeof (mutex_t) + 2 * sizeof (tls32_t))]; } tls_metadata32_t; #endif /* _SYSCALL32 */ /* * Sleep queues for USYNC_THREAD condvars and mutexes. * The size and alignment is 64 bytes to reduce cache conflicts. */ typedef union { uint64_t qh_64[8]; struct { mutex_t q_lock; uint8_t q_qcnt; uint8_t q_pad[7]; uint64_t q_lockcount; uint32_t q_qlen; uint32_t q_qmax; struct ulwp *q_head; struct ulwp *q_tail; } qh_qh; } queue_head_t; #define qh_lock qh_qh.q_lock #define qh_qcnt qh_qh.q_qcnt #define qh_lockcount qh_qh.q_lockcount #define qh_qlen qh_qh.q_qlen #define qh_qmax qh_qh.q_qmax #define qh_head qh_qh.q_head #define qh_tail qh_qh.q_tail /* queue types passed to queue_lock() and enqueue() */ #define MX 0 #define CV 1 #define FIFOQ 0x10 /* or'ing with FIFOQ asks for FIFO queueing */ #define QHASHSHIFT 9 /* number of hashing bits */ #define QHASHSIZE (1 << QHASHSHIFT) /* power of 2 (1<<9 == 512) */ #define QUEUE_HASH(wchan, type) ((uint_t) \ ((((uintptr_t)(wchan) >> 3) \ ^ ((uintptr_t)(wchan) >> (QHASHSHIFT + 3))) \ & (QHASHSIZE - 1)) + (((type) == MX)? 0 : QHASHSIZE)) extern queue_head_t *queue_lock(void *, int); extern void queue_unlock(queue_head_t *); extern void enqueue(queue_head_t *, struct ulwp *, void *, int); extern struct ulwp *dequeue(queue_head_t *, void *, int *); extern struct ulwp *queue_waiter(queue_head_t *, void *); extern struct ulwp *queue_unlink(queue_head_t *, struct ulwp **, struct ulwp *); extern uint8_t dequeue_self(queue_head_t *, void *); extern void unsleep_self(void); extern void spin_lock_set(mutex_t *); extern void spin_lock_clear(mutex_t *); /* * Memory block for chain of owned ceiling mutexes. */ typedef struct mxchain { struct mxchain *mxchain_next; mutex_t *mxchain_mx; } mxchain_t; /* * Pointer to an rwlock that is held for reading. * Used in rw_rdlock() to allow a thread that already holds a read * lock to acquire another read lock on the same rwlock even if * there are writers waiting. This to avoid deadlock when acquiring * a read lock more than once in the presence of pending writers. * POSIX mandates this behavior. */ typedef struct { void *rd_rwlock; /* the rwlock held for reading */ size_t rd_count; /* count of read locks applied */ } readlock_t; #ifdef _SYSCALL32 typedef struct { caddr32_t rd_rwlock; size32_t rd_count; } readlock32_t; #endif /* _SYSCALL32 */ /* * Maximum number of read locks allowed for one thread on one rwlock. * This could be as large as INT_MAX, but the SUSV3 test suite would * take an inordinately long time to complete. This is big enough. */ #define READ_LOCK_MAX 100000 #define ul_tlsent ul_tls.tls_data /* array of pointers to dynamic TLS */ #define ul_ntlsent ul_tls.tls_size /* number of entries in ul_tlsent */ /* * Round up an integral value to a multiple of 64 */ #define roundup64(x) (-(-(x) & -64)) /* * NOTE: Whatever changes are made to ulwp_t must be * reflected in $SRC/cmd/mdb/common/modules/libc/libc.c * * NOTE: ul_self *must* be the first member of ulwp_t on x86 * Low-level x86 code relies on this. */ typedef struct ulwp { /* * These members always need to come first on sparc. * For dtrace, a ulwp_t must be aligned on a 64-byte boundary. */ #if defined(__sparc) uint32_t ul_dinstr; /* scratch space for dtrace */ uint32_t ul_padsparc0[15]; uint32_t ul_dsave; /* dtrace: save %g1, %g0, %sp */ uint32_t ul_drestore; /* dtrace: restore %g0, %g0, %g0 */ uint32_t ul_dftret; /* dtrace: return probe fasttrap */ uint32_t ul_dreturn; /* dtrace: return %o0 */ #endif struct ulwp *ul_self; /* pointer to self */ #if defined(__i386) uint8_t ul_dinstr[40]; /* scratch space for dtrace */ #elif defined(__amd64) uint8_t ul_dinstr[56]; /* scratch space for dtrace */ #endif struct uberdata *ul_uberdata; /* uber (super-global) data */ tls_t ul_tls; /* dynamic thread-local storage base */ struct ulwp *ul_forw; /* forw, back all_lwps list, */ struct ulwp *ul_back; /* protected by link_lock */ struct ulwp *ul_next; /* list to keep track of stacks */ struct ulwp *ul_hash; /* hash chain linked list */ void *ul_rval; /* return value from thr_exit() */ caddr_t ul_stk; /* mapping base of the stack */ size_t ul_mapsiz; /* mapping size of the stack */ size_t ul_guardsize; /* normally _lpagesize */ uintptr_t ul_stktop; /* broken thr_stksegment() interface */ size_t ul_stksiz; /* broken thr_stksegment() interface */ stack_t ul_ustack; /* current stack boundaries */ int ul_ix; /* hash index */ lwpid_t ul_lwpid; /* thread id, aka the lwp id */ pri_t ul_pri; /* priority known to the library */ pri_t ul_mappedpri; /* priority known to the application */ char ul_policy; /* scheduling policy */ char ul_pri_mapped; /* != 0 means ul_mappedpri is valid */ union { struct { char cursig; /* deferred signal number */ char pleasestop; /* lwp requested to stop itself */ } s; short curplease; /* for testing both at once */ } ul_cp; char ul_stop; /* reason for stopping */ char ul_signalled; /* this lwp was cond_signal()d */ char ul_dead; /* this lwp has called thr_exit */ char ul_unwind; /* posix: unwind C++ stack */ char ul_detached; /* THR_DETACHED at thread_create() */ /* or pthread_detach() was called */ char ul_writer; /* sleeping in rw_wrlock() */ char ul_stopping; /* set by curthread: stopping self */ char ul_cancel_prologue; /* for _cancel_prologue() */ short ul_preempt; /* no_preempt()/preempt() */ short ul_savpreempt; /* pre-existing preempt value */ char ul_sigsuspend; /* thread is in sigsuspend/pollsys */ char ul_main; /* thread is the main thread */ char ul_fork; /* thread is performing a fork */ char ul_primarymap; /* primary link-map is initialized */ /* per-thread copies of the corresponding global variables */ uint8_t ul_max_spinners; /* thread_max_spinners */ char ul_door_noreserve; /* thread_door_noreserve */ char ul_queue_fifo; /* thread_queue_fifo */ char ul_cond_wait_defer; /* thread_cond_wait_defer */ char ul_error_detection; /* thread_error_detection */ char ul_async_safe; /* thread_async_safe */ char ul_pad1; char ul_save_state; /* bind_guard() interface to ld.so.1 */ int ul_adaptive_spin; /* thread_adaptive_spin */ int ul_queue_spin; /* thread_queue_spin */ volatile int ul_critical; /* non-zero == in a critical region */ int ul_sigdefer; /* non-zero == defer signals */ int ul_vfork; /* thread is the child of vfork() */ int ul_cancelable; /* _cancelon()/_canceloff() */ char ul_cancel_pending; /* pthread_cancel() was called */ char ul_cancel_disabled; /* PTHREAD_CANCEL_DISABLE */ char ul_cancel_async; /* PTHREAD_CANCEL_ASYNCHRONOUS */ char ul_save_async; /* saved copy of ul_cancel_async */ char ul_mutator; /* lwp is a mutator (java interface) */ char ul_created; /* created suspended */ char ul_replace; /* replacement; must be free()d */ uchar_t ul_nocancel; /* cancellation can't happen */ int ul_errno; /* per-thread errno */ int *ul_errnop; /* pointer to errno or self->ul_errno */ __cleanup_t *ul_clnup_hdr; /* head of cleanup handlers list */ uberflags_t *volatile ul_schedctl_called; /* ul_schedctl is set up */ volatile sc_shared_t *volatile ul_schedctl; /* schedctl data */ int ul_bindflags; /* bind_guard() interface to ld.so.1 */ uint_t ul_libc_locks; /* count of cancel_safe_mutex_lock()s */ tsd_t *ul_stsd; /* slow TLS for keys >= TSD_NFAST */ void *ul_ftsd[TSD_NFAST]; /* fast TLS for keys < TSD_NFAST */ td_evbuf_t ul_td_evbuf; /* event buffer */ char ul_td_events_enable; /* event mechanism enabled */ char ul_sync_obj_reg; /* tdb_sync_obj_register() */ char ul_qtype; /* MX or CV */ char ul_cv_wake; /* != 0: just wake up, don't requeue */ int ul_usropts; /* flags given to thr_create() */ void *(*ul_startpc)(void *); /* start func (thr_create()) */ void *ul_startarg; /* argument for start function */ void *ul_wchan; /* synch object when sleeping */ struct ulwp *ul_link; /* sleep queue link */ queue_head_t *ul_sleepq; /* sleep queue thread is waiting on */ mutex_t *ul_cvmutex; /* mutex dropped when waiting on a cv */ mxchain_t *ul_mxchain; /* chain of owned ceiling mutexes */ pri_t ul_epri; /* effective scheduling priority */ pri_t ul_emappedpri; /* effective mapped priority */ uint_t ul_rdlockcnt; /* # entries in ul_readlock array */ /* 0 means there is but a single entry */ union { /* single entry or pointer to array */ readlock_t single; readlock_t *array; } ul_readlock; uint_t ul_heldlockcnt; /* # entries in ul_heldlocks array */ /* 0 means there is but a single entry */ union { /* single entry or pointer to array */ mutex_t *single; mutex_t **array; } ul_heldlocks; /* PROBE_SUPPORT begin */ void *ul_tpdp; /* PROBE_SUPPORT end */ ucontext_t *ul_siglink; /* pointer to previous context */ uint_t ul_spin_lock_spin; /* spin lock statistics */ uint_t ul_spin_lock_spin2; uint_t ul_spin_lock_sleep; uint_t ul_spin_lock_wakeup; /* the following members *must* be last in the structure */ /* they are discarded when ulwp is replaced on thr_exit() */ sigset_t ul_sigmask; /* thread's current signal mask */ sigset_t ul_tmpmask; /* signal mask for sigsuspend/pollsys */ siginfo_t ul_siginfo; /* deferred siginfo */ mutex_t ul_spinlock; /* used when suspending/continuing */ fpuenv_t ul_fpuenv; /* floating point state */ uintptr_t ul_sp; /* stack pointer when blocked */ void *ul_ex_unwind; /* address of _ex_unwind() or -1 */ #if defined(sparc) void *ul_unwind_ret; /* used only by _ex_clnup_handler() */ #endif } ulwp_t; #define ul_cursig ul_cp.s.cursig /* deferred signal number */ #define ul_pleasestop ul_cp.s.pleasestop /* lwp requested to stop */ #define ul_curplease ul_cp.curplease /* for testing both at once */ /* * This is the size of a replacement ulwp, retained only for the benefit * of thr_join(). The trailing members are unneeded for this purpose. */ #define REPLACEMENT_SIZE ((size_t)&((ulwp_t *)NULL)->ul_sigmask) /* * Definitions for static initialization of signal sets, * plus some sneaky optimizations in various places. */ #define SIGMASK(sig) ((uint32_t)1 << (((sig) - 1) & (32 - 1))) #if (MAXSIG > 32 && MAXSIG <= 64) #define FILLSET0 0xffffffffu #define FILLSET1 ((1u << (MAXSIG - 32)) - 1) #else #error "fix me: MAXSIG out of bounds" #endif #define CANTMASK0 (SIGMASK(SIGKILL) | SIGMASK(SIGSTOP)) #define CANTMASK1 0 #define MASKSET0 (FILLSET0 & ~CANTMASK0) #define MASKSET1 (FILLSET1 & ~CANTMASK1) extern const sigset_t maskset; /* set of all maskable signals */ extern int thread_adaptive_spin; extern uint_t thread_max_spinners; extern int thread_queue_spin; extern int thread_queue_fifo; extern int thread_queue_dump; extern int thread_cond_wait_defer; extern int thread_async_safe; extern int thread_queue_verify; /* * pthread_atfork() related data, used to store atfork handlers. */ typedef struct atfork { struct atfork *forw; /* forward pointer */ struct atfork *back; /* backward pointer */ void (*prepare)(void); /* pre-fork handler */ void (*parent)(void); /* post-fork parent handler */ void (*child)(void); /* post-fork child handler */ } atfork_t; /* * Element in the table of registered process robust locks. * We keep track of these to make sure that we only call * ___lwp_mutex_register() once for each such lock. */ typedef struct robust { struct robust *robust_next; mutex_t *robust_lock; } robust_t; /* * Parameters of the lock registration hash table. */ #define LOCKSHIFT 9 /* number of hashing bits */ #define LOCKHASHSZ (1 << LOCKSHIFT) /* power of 2 (1<<9 == 512) */ #define LOCK_HASH(addr) (uint_t) \ ((((uintptr_t)(addr) >> 3) \ ^ ((uintptr_t)(addr) >> (LOCKSHIFT + 3))) \ & (LOCKHASHSZ - 1)) /* * Make our hot locks reside on private cache lines (64 bytes). */ typedef struct { mutex_t pad_lock; char pad_pad[64 - sizeof (mutex_t)]; } pad_lock_t; /* * Make our semi-hot locks reside on semi-private cache lines (32 bytes). */ typedef struct { mutex_t pad_lock; char pad_pad[32 - sizeof (mutex_t)]; } pad32_lock_t; /* * The threads hash table is used for fast lookup and locking of an active * thread structure (ulwp_t) given a thread-id. It is an N-element array of * thr_hash_table_t structures, where N == 1 before the main thread creates * the first additional thread and N == 1024 afterwards. Each element of the * table is 64 bytes in size and alignment to reduce cache conflicts. */ typedef struct { mutex_t hash_lock; /* lock per bucket */ cond_t hash_cond; /* convar per bucket */ ulwp_t *hash_bucket; /* hash bucket points to the list of ulwps */ char hash_pad[64 - /* pad out to 64 bytes */ (sizeof (mutex_t) + sizeof (cond_t) + sizeof (ulwp_t *))]; } thr_hash_table_t; #ifdef _SYSCALL32 typedef struct { mutex_t hash_lock; cond_t hash_cond; caddr32_t hash_bucket; char hash_pad[64 - (sizeof (mutex_t) + sizeof (cond_t) + sizeof (caddr32_t))]; } thr_hash_table32_t; #endif /* _SYSCALL32 */ /* * siguaction members have 128-byte size and 64-byte alignment. * We know that sizeof (struct sigaction) is 32 bytes for both * _ILP32 and _LP64 and that sizeof (rwlock_t) is 64 bytes. */ typedef struct { rwlock_t sig_lock; struct sigaction sig_uaction; char sig_pad[128 - sizeof (rwlock_t) - sizeof (struct sigaction)]; } siguaction_t; #ifdef _SYSCALL32 typedef struct { rwlock_t sig_lock; struct sigaction32 sig_uaction; char sig_pad[128 - sizeof (rwlock_t) - sizeof (struct sigaction32)]; } siguaction32_t; #endif /* _SYSCALL32 */ /* * Bucket structures, used by lmalloc()/lfree(). * See port/threads/alloc.c for details. * A bucket's size and alignment is 64 bytes. */ typedef struct { mutex_t bucket_lock; /* protects the free list allocations */ void *free_list; /* LIFO list of blocks to allocate/free */ size_t chunks; /* number of 64K blocks mmap()ed last time */ char pad64[64 - /* pad out to 64 bytes */ (sizeof (mutex_t) + sizeof (void *) + sizeof (size_t))]; } bucket_t; #ifdef _SYSCALL32 typedef struct { mutex_t bucket_lock; caddr32_t free_list; size32_t chunks; char pad64[64 - /* pad out to 64 bytes */ (sizeof (mutex_t) + sizeof (caddr32_t) + sizeof (size32_t))]; } bucket32_t; #endif /* _SYSCALL32 */ #define NBUCKETS 10 /* sizes ranging from 64 to 32768 */ /* * atexit() data structures. * See port/gen/atexit.c for details. */ typedef void (*_exithdlr_func_t) (void); typedef struct _exthdlr { struct _exthdlr *next; /* next in handler list */ _exithdlr_func_t hdlr; /* handler itself */ } _exthdlr_t; typedef struct { mutex_t exitfns_lock; _exthdlr_t *head; void *exit_frame_monitor; char exit_pad[64 - /* pad out to 64 bytes */ (sizeof (mutex_t) + sizeof (_exthdlr_t *) + sizeof (void *))]; } atexit_root_t; #ifdef _SYSCALL32 typedef struct { mutex_t exitfns_lock; caddr32_t head; caddr32_t exit_frame_monitor; char exit_pad[64 - /* pad out to 64 bytes */ (sizeof (mutex_t) + sizeof (caddr32_t) + sizeof (caddr32_t))]; } atexit_root32_t; #endif /* _SYSCALL32 */ /* * This is data that is global to all link maps (uberdata, aka super-global). */ typedef struct uberdata { pad_lock_t _link_lock; pad32_lock_t _fork_lock; pad32_lock_t _atfork_lock; pad32_lock_t _callout_lock; pad32_lock_t _tdb_hash_lock; tdb_sync_stats_t tdb_hash_lock_stats; siguaction_t siguaction[NSIG]; bucket_t bucket[NBUCKETS]; atexit_root_t atexit_root; tsd_metadata_t tsd_metadata; tls_metadata_t tls_metadata; /* * Every object before this point has size and alignment of 64 bytes. * Don't add any other type of data before this point. */ char primary_map; /* set when primary link map is initialized */ char bucket_init; /* set when bucket[NBUCKETS] is initialized */ char pad[2]; uberflags_t uberflags; queue_head_t *queue_head; thr_hash_table_t *thr_hash_table; uint_t hash_size; /* # of entries in thr_hash_table[] */ uint_t hash_mask; /* hash_size - 1 */ ulwp_t *ulwp_one; /* main thread */ ulwp_t *all_lwps; /* circular ul_forw/ul_back list of live lwps */ ulwp_t *all_zombies; /* circular ul_forw/ul_back list of zombies */ int nthreads; /* total number of live threads/lwps */ int nzombies; /* total number of zombie threads */ int ndaemons; /* total number of THR_DAEMON threads/lwps */ pid_t pid; /* the current process's pid */ void (*sigacthandler)(int, siginfo_t *, void *); ulwp_t *lwp_stacks; ulwp_t *lwp_laststack; int nfreestack; int thread_stack_cache; ulwp_t *ulwp_freelist; ulwp_t *ulwp_lastfree; ulwp_t *ulwp_replace_free; ulwp_t *ulwp_replace_last; atfork_t *atforklist; /* circular Q for fork handlers */ robust_t **robustlocks; /* table of registered robust locks */ struct uberdata **tdb_bootstrap; tdb_t tdb; /* thread debug interfaces (for libc_db) */ } uberdata_t; #define link_lock _link_lock.pad_lock #define fork_lock _fork_lock.pad_lock #define atfork_lock _atfork_lock.pad_lock #define callout_lock _callout_lock.pad_lock #define tdb_hash_lock _tdb_hash_lock.pad_lock #pragma align 64(__uberdata) extern uberdata_t __uberdata; extern uberdata_t **__tdb_bootstrap; /* known to libc_db and mdb */ extern int primary_link_map; #define ulwp_mutex(ulwp, udp) \ (&(udp)->thr_hash_table[(ulwp)->ul_ix].hash_lock) #define ulwp_condvar(ulwp, udp) \ (&(udp)->thr_hash_table[(ulwp)->ul_ix].hash_cond) /* * Grab and release the hash table lock for the specified lwp. */ #define ulwp_lock(ulwp, udp) lmutex_lock(ulwp_mutex(ulwp, udp)) #define ulwp_unlock(ulwp, udp) lmutex_unlock(ulwp_mutex(ulwp, udp)) #ifdef _SYSCALL32 /* needed by libc_db */ typedef struct ulwp32 { #if defined(__sparc) uint32_t ul_dinstr; /* scratch space for dtrace */ uint32_t ul_padsparc0[15]; uint32_t ul_dsave; /* dtrace: save %g1, %g0, %sp */ uint32_t ul_drestore; /* dtrace: restore %g0, %g0, %g0 */ uint32_t ul_dftret; /* dtrace: return probe fasttrap */ uint32_t ul_dreturn; /* dtrace: return %o0 */ #endif caddr32_t ul_self; /* pointer to self */ #if defined(__x86) uint8_t ul_dinstr[40]; /* scratch space for dtrace */ #endif caddr32_t ul_uberdata; /* uber (super-global) data */ tls32_t ul_tls; /* dynamic thread-local storage base */ caddr32_t ul_forw; /* forw, back all_lwps list, */ caddr32_t ul_back; /* protected by link_lock */ caddr32_t ul_next; /* list to keep track of stacks */ caddr32_t ul_hash; /* hash chain linked list */ caddr32_t ul_rval; /* return value from thr_exit() */ caddr32_t ul_stk; /* mapping base of the stack */ size32_t ul_mapsiz; /* mapping size of the stack */ size32_t ul_guardsize; /* normally _lpagesize */ caddr32_t ul_stktop; /* broken thr_stksegment() interface */ size32_t ul_stksiz; /* broken thr_stksegment() interface */ stack32_t ul_ustack; /* current stack boundaries */ int ul_ix; /* hash index */ lwpid_t ul_lwpid; /* thread id, aka the lwp id */ pri_t ul_pri; /* priority known to the library */ pri_t ul_mappedpri; /* priority known to the application */ char ul_policy; /* scheduling policy */ char ul_pri_mapped; /* != 0 means ul_mappedpri is valid */ union { struct { char cursig; /* deferred signal number */ char pleasestop; /* lwp requested to stop itself */ } s; short curplease; /* for testing both at once */ } ul_cp; char ul_stop; /* reason for stopping */ char ul_signalled; /* this lwp was cond_signal()d */ char ul_dead; /* this lwp has called thr_exit */ char ul_unwind; /* posix: unwind C++ stack */ char ul_detached; /* THR_DETACHED at thread_create() */ /* or pthread_detach() was called */ char ul_writer; /* sleeping in rw_wrlock() */ char ul_stopping; /* set by curthread: stopping self */ char ul_cancel_prologue; /* for _cancel_prologue() */ short ul_preempt; /* no_preempt()/preempt() */ short ul_savpreempt; /* pre-existing preempt value */ char ul_sigsuspend; /* thread is in sigsuspend/pollsys */ char ul_main; /* thread is the main thread */ char ul_fork; /* thread is performing a fork */ char ul_primarymap; /* primary link-map is initialized */ /* per-thread copies of the corresponding global variables */ uint8_t ul_max_spinners; /* thread_max_spinners */ char ul_door_noreserve; /* thread_door_noreserve */ char ul_queue_fifo; /* thread_queue_fifo */ char ul_cond_wait_defer; /* thread_cond_wait_defer */ char ul_error_detection; /* thread_error_detection */ char ul_async_safe; /* thread_async_safe */ char ul_pad1; char ul_save_state; /* bind_guard() interface to ld.so.1 */ int ul_adaptive_spin; /* thread_adaptive_spin */ int ul_queue_spin; /* thread_queue_spin */ int ul_critical; /* non-zero == in a critical region */ int ul_sigdefer; /* non-zero == defer signals */ int ul_vfork; /* thread is the child of vfork() */ int ul_cancelable; /* _cancelon()/_canceloff() */ char ul_cancel_pending; /* pthread_cancel() was called */ char ul_cancel_disabled; /* PTHREAD_CANCEL_DISABLE */ char ul_cancel_async; /* PTHREAD_CANCEL_ASYNCHRONOUS */ char ul_save_async; /* saved copy of ul_cancel_async */ char ul_mutator; /* lwp is a mutator (java interface) */ char ul_created; /* created suspended */ char ul_replace; /* replacement; must be free()d */ uchar_t ul_nocancel; /* cancellation can't happen */ int ul_errno; /* per-thread errno */ caddr32_t ul_errnop; /* pointer to errno or self->ul_errno */ caddr32_t ul_clnup_hdr; /* head of cleanup handlers list */ caddr32_t ul_schedctl_called; /* ul_schedctl is set up */ caddr32_t ul_schedctl; /* schedctl data */ int ul_bindflags; /* bind_guard() interface to ld.so.1 */ uint_t ul_libc_locks; /* count of cancel_safe_mutex_lock()s */ caddr32_t ul_stsd; /* slow TLS for keys >= TSD_NFAST */ caddr32_t ul_ftsd[TSD_NFAST]; /* fast TLS for keys < TSD_NFAST */ td_evbuf32_t ul_td_evbuf; /* event buffer */ char ul_td_events_enable; /* event mechanism enabled */ char ul_sync_obj_reg; /* tdb_sync_obj_register() */ char ul_qtype; /* MX or CV */ char ul_cv_wake; /* != 0: just wake up, don't requeue */ int ul_usropts; /* flags given to thr_create() */ caddr32_t ul_startpc; /* start func (thr_create()) */ caddr32_t ul_startarg; /* argument for start function */ caddr32_t ul_wchan; /* synch object when sleeping */ caddr32_t ul_link; /* sleep queue link */ caddr32_t ul_sleepq; /* sleep queue thread is waiting on */ caddr32_t ul_cvmutex; /* mutex dropped when waiting on a cv */ caddr32_t ul_mxchain; /* chain of owned ceiling mutexes */ pri_t ul_epri; /* effective scheduling priority */ pri_t ul_emappedpri; /* effective mapped priority */ uint_t ul_rdlockcnt; /* # entries in ul_readlock array */ /* 0 means there is but a single entry */ union { /* single entry or pointer to array */ readlock32_t single; caddr32_t array; } ul_readlock; uint_t ul_heldlockcnt; /* # entries in ul_heldlocks array */ /* 0 means there is but a single entry */ union { /* single entry or pointer to array */ caddr32_t single; caddr32_t array; } ul_heldlocks; /* PROBE_SUPPORT begin */ caddr32_t ul_tpdp; /* PROBE_SUPPORT end */ caddr32_t ul_siglink; /* pointer to previous context */ uint_t ul_spin_lock_spin; /* spin lock statistics */ uint_t ul_spin_lock_spin2; uint_t ul_spin_lock_sleep; uint_t ul_spin_lock_wakeup; /* the following members *must* be last in the structure */ /* they are discarded when ulwp is replaced on thr_exit() */ sigset32_t ul_sigmask; /* thread's current signal mask */ sigset32_t ul_tmpmask; /* signal mask for sigsuspend/pollsys */ siginfo32_t ul_siginfo; /* deferred siginfo */ mutex_t ul_spinlock; /* used when suspending/continuing */ fpuenv32_t ul_fpuenv; /* floating point state */ caddr32_t ul_sp; /* stack pointer when blocked */ #if defined(sparc) caddr32_t ul_unwind_ret; /* used only by _ex_clnup_handler() */ #endif } ulwp32_t; #define REPLACEMENT_SIZE32 ((size_t)&((ulwp32_t *)NULL)->ul_sigmask) typedef struct uberdata32 { pad_lock_t _link_lock; pad32_lock_t _fork_lock; pad32_lock_t _atfork_lock; pad32_lock_t _callout_lock; pad32_lock_t _tdb_hash_lock; tdb_sync_stats_t tdb_hash_lock_stats; siguaction32_t siguaction[NSIG]; bucket32_t bucket[NBUCKETS]; atexit_root32_t atexit_root; tsd_metadata32_t tsd_metadata; tls_metadata32_t tls_metadata; char primary_map; char bucket_init; char pad[2]; uberflags_t uberflags; caddr32_t queue_head; caddr32_t thr_hash_table; uint_t hash_size; uint_t hash_mask; caddr32_t ulwp_one; caddr32_t all_lwps; caddr32_t all_zombies; int nthreads; int nzombies; int ndaemons; int pid; caddr32_t sigacthandler; caddr32_t lwp_stacks; caddr32_t lwp_laststack; int nfreestack; int thread_stack_cache; caddr32_t ulwp_freelist; caddr32_t ulwp_lastfree; caddr32_t ulwp_replace_free; caddr32_t ulwp_replace_last; caddr32_t atforklist; caddr32_t robustlocks; caddr32_t tdb_bootstrap; tdb32_t tdb; } uberdata32_t; #endif /* _SYSCALL32 */ /* ul_stop values */ #define TSTP_REGULAR 0x01 /* Stopped by thr_suspend() */ #define TSTP_MUTATOR 0x08 /* stopped by thr_suspend_*mutator*() */ #define TSTP_FORK 0x20 /* stopped by suspend_fork() */ /* * Implementation-specific attribute types for pthread_mutexattr_init() etc. */ typedef struct _cvattr { int pshared; clockid_t clockid; } cvattr_t; typedef struct _mattr { int pshared; int protocol; int prioceiling; int type; int robustness; } mattr_t; typedef struct _thrattr { size_t stksize; void *stkaddr; int detachstate; int daemonstate; int scope; int prio; int policy; int inherit; size_t guardsize; } thrattr_t; typedef struct _rwlattr { int pshared; } rwlattr_t; /* _curthread() is inline for speed */ extern ulwp_t *_curthread(void); #define curthread (_curthread()) /* this version (also inline) can be tested for NULL */ extern ulwp_t *__curthread(void); /* get the current stack pointer (also inline) */ extern greg_t stkptr(void); /* * Suppress __attribute__((...)) if we are not compiling with gcc */ #if !defined(__GNUC__) #define __attribute__(string) #endif /* * Implementation functions. Not visible outside of the library itself. */ extern int __nanosleep(const timespec_t *, timespec_t *); extern void getgregs(ulwp_t *, gregset_t); extern void setgregs(ulwp_t *, gregset_t); extern void thr_panic(const char *); #pragma rarely_called(thr_panic) extern ulwp_t *find_lwp(thread_t); extern int real_priority(ulwp_t *); extern void finish_init(void); extern void queue_alloc(void); extern void tsd_exit(void); extern void tsd_free(ulwp_t *); extern void tls_setup(void); extern void tls_exit(void); extern void tls_free(ulwp_t *); extern void rwl_free(ulwp_t *); extern void heldlock_exit(void); extern void heldlock_free(ulwp_t *); extern void sigacthandler(int, siginfo_t *, void *); extern void signal_init(void); extern int sigequalset(const sigset_t *, const sigset_t *); extern void mutex_setup(void); extern void take_deferred_signal(int); extern int setup_context(ucontext_t *, void *(*func)(ulwp_t *), ulwp_t *ulwp, caddr_t stk, size_t stksize); extern volatile sc_shared_t *setup_schedctl(void); extern void *lmalloc(size_t); extern void lfree(void *, size_t); extern void *libc_malloc(size_t); extern void *libc_realloc(void *, size_t); extern void libc_free(void *); extern char *libc_strdup(const char *); extern void ultos(uint64_t, int, char *); extern void lock_error(const mutex_t *, const char *, void *, const char *); extern void rwlock_error(const rwlock_t *, const char *, const char *); extern void thread_error(const char *); extern void grab_assert_lock(void); extern void dump_queue_statistics(void); extern void collect_queue_statistics(void); extern void record_spin_locks(ulwp_t *); extern void remember_lock(mutex_t *); extern void forget_lock(mutex_t *); extern void register_lock(mutex_t *); extern void unregister_locks(void); #if defined(__sparc) extern void _flush_windows(void); #else #define _flush_windows() #endif extern void set_curthread(void *); /* * Utility function used when waking up many threads (more than MAXLWPS) * all at once. See mutex_wakeup_all(), cond_broadcast(), and rw_unlock(). */ #define MAXLWPS 128 /* max remembered lwpids before overflow */ #define NEWLWPS 2048 /* max remembered lwpids at first overflow */ extern lwpid_t *alloc_lwpids(lwpid_t *, int *, int *); /* enter a critical section */ #define enter_critical(self) (self->ul_critical++) /* exit a critical section, take deferred actions if necessary */ extern void do_exit_critical(void); #define exit_critical(self) \ (void) (self->ul_critical--, \ ((self->ul_curplease && self->ul_critical == 0)? \ (do_exit_critical(), 0) : 0)) /* * Like enter_critical()/exit_critical() but just for deferring signals. * Unlike enter_critical()/exit_critical(), ul_sigdefer may be set while * calling application functions like constructors and destructors. * Care must be taken if the application function attempts to set * the signal mask while a deferred signal is present; the setting * of the signal mask must also be deferred. */ #define sigoff(self) (self->ul_sigdefer++) extern void sigon(ulwp_t *); /* these are exported functions */ extern void _sigoff(void); extern void _sigon(void); #define sigorset(s1, s2) \ (((s1)->__sigbits[0] |= (s2)->__sigbits[0]), \ ((s1)->__sigbits[1] |= (s2)->__sigbits[1]), \ ((s1)->__sigbits[2] |= (s2)->__sigbits[2]), \ ((s1)->__sigbits[3] |= (s2)->__sigbits[3])) #define sigandset(s1, s2) \ (((s1)->__sigbits[0] &= (s2)->__sigbits[0]), \ ((s1)->__sigbits[1] &= (s2)->__sigbits[1]), \ ((s1)->__sigbits[2] &= (s2)->__sigbits[2]), \ ((s1)->__sigbits[3] &= (s2)->__sigbits[3])) #define sigdiffset(s1, s2) \ (((s1)->__sigbits[0] &= ~(s2)->__sigbits[0]), \ ((s1)->__sigbits[1] &= ~(s2)->__sigbits[1]), \ ((s1)->__sigbits[2] &= ~(s2)->__sigbits[2]), \ ((s1)->__sigbits[3] &= ~(s2)->__sigbits[3])) #define delete_reserved_signals(s) \ (((s)->__sigbits[0] &= MASKSET0), \ ((s)->__sigbits[1] &= (MASKSET1 & ~SIGMASK(SIGCANCEL))),\ ((s)->__sigbits[2] = 0), \ ((s)->__sigbits[3] = 0)) extern void block_all_signals(ulwp_t *self); /* * When restoring the signal mask after having previously called * block_all_signals(), if we have a deferred signal present then * do nothing other than ASSERT() that we are in a critical region. * The signal mask will be set when we emerge from the critical region * and call take_deferred_signal(). There is no race condition here * because the kernel currently has all signals blocked for this thread. */ #define restore_signals(self) \ ((void) ((self)->ul_cursig? \ (ASSERT((self)->ul_critical + (self)->ul_sigdefer != 0), 0) : \ __lwp_sigmask(SIG_SETMASK, &(self)->ul_sigmask, NULL))) extern void set_cancel_pending_flag(ulwp_t *, int); extern void set_cancel_eintr_flag(ulwp_t *); extern void set_parking_flag(ulwp_t *, int); extern int cancel_active(void); extern void *_thr_setup(ulwp_t *); extern void _fpinherit(ulwp_t *); extern void _lwp_start(void); extern void _lwp_terminate(void); extern void lmutex_lock(mutex_t *); extern void lmutex_unlock(mutex_t *); extern void lrw_rdlock(rwlock_t *); extern void lrw_wrlock(rwlock_t *); extern void lrw_unlock(rwlock_t *); extern void sig_mutex_lock(mutex_t *); extern void sig_mutex_unlock(mutex_t *); extern int sig_mutex_trylock(mutex_t *); extern int sig_cond_wait(cond_t *, mutex_t *); extern int sig_cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); extern void cancel_safe_mutex_lock(mutex_t *); extern void cancel_safe_mutex_unlock(mutex_t *); extern int cancel_safe_mutex_trylock(mutex_t *); extern void _prefork_handler(void); extern void _postfork_parent_handler(void); extern void _postfork_child_handler(void); extern void postfork1_child(void); extern void postfork1_child_aio(void); extern void postfork1_child_sigev_aio(void); extern void postfork1_child_sigev_mq(void); extern void postfork1_child_sigev_timer(void); extern void postfork1_child_tpool(void); extern void fork_lock_enter(void); extern void fork_lock_exit(void); extern void suspend_fork(void); extern void continue_fork(int); extern void do_sigcancel(void); extern void setup_cancelsig(int); extern void init_sigev_thread(void); extern void init_aio(void); extern void _cancelon(void); extern void _canceloff(void); extern void _canceloff_nocancel(void); extern void _cancel_prologue(void); extern void _cancel_epilogue(void); extern void no_preempt(ulwp_t *); extern void preempt(ulwp_t *); extern void _thrp_unwind(void *); /* * Prototypes for the strong versions of the interface functions */ extern pid_t __forkx(int); extern pid_t __forkallx(int); extern pid_t _private_getpid(void); extern uid_t _private_geteuid(void); extern int _kill(pid_t, int); extern int _private_open(const char *, int, ...); extern int _private_close(int); extern ssize_t __read(int, void *, size_t); extern ssize_t __write(int, const void *, size_t); extern void *_memcpy(void *, const void *, size_t); extern void *_memset(void *, int, size_t); extern int _memcmp(const void *, const void *, size_t); extern void *_private_memcpy(void *, const void *, size_t); extern void *_private_memset(void *, int, size_t); extern int _private_sigfillset(sigset_t *); extern int _private_sigemptyset(sigset_t *); extern int _private_sigaddset(sigset_t *, int); extern int _private_sigdelset(sigset_t *, int); extern int _private_sigismember(sigset_t *, int); extern void *_private_mmap(void *, size_t, int, int, int, off_t); extern int _private_mprotect(void *, size_t, int); extern int _private_munmap(void *, size_t); extern int _private_getrlimit(int, struct rlimit *); extern int __lwp_continue(lwpid_t); extern int __lwp_create(ucontext_t *, uint_t, lwpid_t *); extern int __lwp_kill(lwpid_t, int); extern lwpid_t __lwp_self(void); extern int ___lwp_suspend(lwpid_t); extern void lwp_yield(void); extern int lwp_wait(lwpid_t, lwpid_t *); extern int __lwp_wait(lwpid_t, lwpid_t *); extern int __lwp_detach(lwpid_t); extern sc_shared_t *__schedctl(void); extern int _private_setcontext(const ucontext_t *); extern int _private_getcontext(ucontext_t *); #pragma unknown_control_flow(_private_getcontext) /* actual system call traps */ extern int __setcontext_syscall(const ucontext_t *); extern int __getcontext_syscall(ucontext_t *); extern int _private_setustack(stack_t *); extern int __clock_gettime(clockid_t, timespec_t *); extern void abstime_to_reltime(clockid_t, const timespec_t *, timespec_t *); extern void hrt2ts(hrtime_t, timespec_t *); extern int __sigaction(int, const struct sigaction *, struct sigaction *); extern int __lwp_sigmask(int, const sigset_t *, sigset_t *); extern void __sighndlr(int, siginfo_t *, ucontext_t *, void (*)()); extern caddr_t __sighndlrend; #pragma unknown_control_flow(__sighndlr) extern void _siglongjmp(sigjmp_buf, int); extern int _pthread_setspecific(pthread_key_t, const void *); extern void *_pthread_getspecific(pthread_key_t); extern void _pthread_exit(void *); extern int _pthread_setcancelstate(int, int *); extern void _private_testcancel(void); /* belongs in */ #define PTHREAD_CREATE_DAEMON_NP 0x100 /* = THR_DAEMON */ #define PTHREAD_CREATE_NONDAEMON_NP 0 extern int _pthread_attr_setdaemonstate_np(pthread_attr_t *, int); extern int _pthread_attr_getdaemonstate_np(const pthread_attr_t *, int *); /* these are private to the library */ extern int _private_mutex_init(mutex_t *, int, void *); extern int _private_mutex_destroy(mutex_t *); extern int _private_mutex_lock(mutex_t *); extern int _private_mutex_trylock(mutex_t *); extern int _private_mutex_unlock(mutex_t *); extern int _mutex_init(mutex_t *, int, void *); extern int _mutex_destroy(mutex_t *); extern int _mutex_consistent(mutex_t *); extern int _mutex_lock(mutex_t *); extern int _mutex_trylock(mutex_t *); extern int _mutex_unlock(mutex_t *); extern int __mutex_init(mutex_t *, int, void *); extern int __mutex_destroy(mutex_t *); extern int __mutex_consistent(mutex_t *); extern int __mutex_lock(mutex_t *); extern int __mutex_trylock(mutex_t *); extern int __mutex_unlock(mutex_t *); extern int mutex_is_held(mutex_t *); extern int _cond_init(cond_t *, int, void *); extern int _cond_signal(cond_t *); extern int _cond_broadcast(cond_t *); extern int _cond_destroy(cond_t *); extern int cond_signal_internal(cond_t *); extern int cond_broadcast_internal(cond_t *); /* cancellation points: */ extern int _cond_wait(cond_t *, mutex_t *); extern int _cond_timedwait(cond_t *, mutex_t *, const timespec_t *); extern int _cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); /* not cancellation points: */ extern int __cond_wait(cond_t *, mutex_t *); extern int __cond_timedwait(cond_t *, mutex_t *, const timespec_t *); extern int __cond_reltimedwait(cond_t *, mutex_t *, const timespec_t *); extern int __rwlock_init(rwlock_t *, int, void *); extern int rw_read_is_held(rwlock_t *); extern int rw_write_is_held(rwlock_t *); extern void _membar_enter(void); extern void _membar_exit(void); extern void _membar_producer(void); extern void _membar_consumer(void); extern int _thr_continue(thread_t); extern int _thr_create(void *, size_t, void *(*)(void *), void *, long, thread_t *); extern int _thrp_create(void *, size_t, void *(*)(void *), void *, long, thread_t *, pri_t, int, size_t); extern int _thr_getprio(thread_t, int *); extern int _thr_getspecific(thread_key_t, void **); extern int _thr_join(thread_t, thread_t *, void **); extern int _thr_keycreate(thread_key_t *, PFrV); extern int _thr_keycreate_once(thread_key_t *, PFrV); extern int _thr_key_delete(thread_key_t); extern int _thr_main(void); extern thread_t _thr_self(void); extern int _thr_getconcurrency(void); extern int _thr_setconcurrency(int); extern int _thr_setprio(thread_t, int); extern int _thr_setspecific(thread_key_t, void *); extern int _thr_stksegment(stack_t *); extern int _thrp_suspend(thread_t, uchar_t); extern int _thrp_continue(thread_t, uchar_t); extern int _thr_sigsetmask(int, const sigset_t *, sigset_t *); extern void _thr_terminate(void *); extern void _thr_exit(void *); extern void _thrp_exit(void); extern const thrattr_t *def_thrattr(void); extern int _thread_setschedparam_main(pthread_t, int, const struct sched_param *, int); extern int _validate_rt_prio(int, int); extern int _thrp_setlwpprio(lwpid_t, int, int); extern pri_t map_rtpri_to_gp(pri_t); extern int get_info_by_policy(int); /* * System call wrappers (direct interfaces to the kernel) */ extern int ___lwp_mutex_register(mutex_t *); extern int ___lwp_mutex_trylock(mutex_t *); extern int ___lwp_mutex_timedlock(mutex_t *, timespec_t *); extern int ___lwp_mutex_unlock(mutex_t *); extern int ___lwp_mutex_wakeup(mutex_t *, int); extern int ___lwp_cond_wait(cond_t *, mutex_t *, timespec_t *, int); extern int __lwp_cond_signal(lwp_cond_t *); extern int __lwp_cond_broadcast(lwp_cond_t *); extern int ___lwp_sema_timedwait(lwp_sema_t *, timespec_t *, int); extern int __lwp_sema_trywait(lwp_sema_t *); extern int __lwp_sema_post(lwp_sema_t *); extern int __lwp_rwlock_rdlock(rwlock_t *, timespec_t *); extern int __lwp_rwlock_wrlock(rwlock_t *, timespec_t *); extern int __lwp_rwlock_tryrdlock(rwlock_t *); extern int __lwp_rwlock_trywrlock(rwlock_t *); extern int __lwp_rwlock_unlock(rwlock_t *); extern int __lwp_park(timespec_t *, lwpid_t); extern int __lwp_unpark(lwpid_t); extern int __lwp_unpark_all(lwpid_t *, int); #if defined(__x86) extern int ___lwp_private(int, int, void *); #endif /* __x86 */ extern int _private_lwp_mutex_lock(mutex_t *); extern int _private_lwp_mutex_unlock(mutex_t *); /* * inlines */ extern int set_lock_byte(volatile uint8_t *); extern uint32_t atomic_swap_32(volatile uint32_t *, uint32_t); extern uint32_t atomic_cas_32(volatile uint32_t *, uint32_t, uint32_t); extern void atomic_inc_32(volatile uint32_t *); extern void atomic_dec_32(volatile uint32_t *); extern void atomic_and_32(volatile uint32_t *, uint32_t); extern void atomic_or_32(volatile uint32_t *, uint32_t); #if defined(__sparc) extern ulong_t caller(void); extern ulong_t getfp(void); #endif /* __sparc */ #include "thr_inlines.h" #endif /* _THR_UBERDATA_H */