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path: root/libpthread/linuxthreads/errno.c

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Diffstat (limited to 'libpthread/linuxthreads/errno.c')

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(n)]) &= ~__td_eventmask (n)) #define td_eventismember(setp, n) \ (__td_eventmask (n) & ((setp)->event_bits[__td_eventword (n)])) #if TD_EVENTSIZE == 2 # define td_eventisempty(setp) \ (!((setp)->event_bits[0]) && !((setp)->event_bits[1])) #else # error "td_eventisempty must be changed to match TD_EVENTSIZE" #endif /* Events reportable by the thread implementation. */ typedef enum { TD_ALL_EVENTS, /* Pseudo-event number. */ TD_EVENT_NONE = TD_ALL_EVENTS, /* Depends on context. */ TD_READY, /* Is executable now. */ TD_SLEEP, /* Blocked in a synchronization obj. */ TD_SWITCHTO, /* Now assigned to a process. */ TD_SWITCHFROM, /* Not anymore assigned to a process. */ TD_LOCK_TRY, /* Trying to get an unavailable lock. */ TD_CATCHSIG, /* Signal posted to the thread. */ TD_IDLE, /* Process getting idle. */ TD_CREATE, /* New thread created. */ TD_DEATH, /* Thread terminated. */ TD_PREEMPT, /* Preempted. */ TD_PRI_INHERIT, /* Inherited elevated priority. */ TD_REAP, /* Reaped. */ TD_CONCURRENCY, /* Number of processes changing. */ TD_TIMEOUT, /* Conditional variable wait timed out. */ TD_MIN_EVENT_NUM = TD_READY, TD_MAX_EVENT_NUM = TD_TIMEOUT, TD_EVENTS_ENABLE = 31 /* Event reporting enabled. */ } td_event_e; /* Values representing the different ways events are reported. */ typedef enum { NOTIFY_BPT, /* User must insert breakpoint at u.bptaddr. */ NOTIFY_AUTOBPT, /* Breakpoint at u.bptaddr is automatically inserted. */ NOTIFY_SYSCALL /* System call u.syscallno will be invoked. */ } td_notify_e; /* Description how event type is reported. */ typedef struct td_notify { td_notify_e type; /* Way the event is reported. */ union { psaddr_t bptaddr; /* Address of breakpoint. */ int syscallno; /* Number of system call used. */ } u; } td_notify_t; /* Structure used to report event. */ typedef struct td_event_msg { td_event_e event; /* Event type being reported. */ const td_thrhandle_t *th_p; /* Thread reporting the event. */ union { # if 0 td_synchandle_t *sh; /* Handle of synchronization object. */ #endif uintptr_t data; /* Event specific data. */ } msg; } td_event_msg_t; /* Structure containing event data available in each thread structure. */ typedef struct { td_thr_events_t eventmask; /* Mask of enabled events. */ td_event_e eventnum; /* Number of last event. */ void *eventdata; /* Data associated with event. */ } td_eventbuf_t; /* Gathered statistics about the process. */ typedef struct td_ta_stats { int nthreads; /* Total number of threads in use. */ int r_concurrency; /* Concurrency level requested by user. */ int nrunnable_num; /* Average runnable threads, numerator. */ int nrunnable_den; /* Average runnable threads, denominator. */ int a_concurrency_num; /* Achieved concurrency level, numerator. */ int a_concurrency_den; /* Achieved concurrency level, denominator. */ int nlwps_num; /* Average number of processes in use, numerator. */ int nlwps_den; /* Average number of processes in use, denominator. */ int nidle_num; /* Average number of idling processes, numerator. */ int nidle_den; /* Average number of idling processes, denominator. */ } td_ta_stats_t; /* Since Sun's library is based on Solaris threads we have to define a few types to map them to POSIX threads. */ typedef pthread_t thread_t; typedef pthread_key_t thread_key_t; /* Callback for iteration over threads. */ typedef int td_thr_iter_f (const td_thrhandle_t *, void *); /* Callback for iteration over thread local data. */ typedef int td_key_iter_f (thread_key_t, void (*) (void *), void *); /* Forward declaration. This has to be defined by the user. */ struct ps_prochandle; /* Information about the thread. */ typedef struct td_thrinfo { td_thragent_t *ti_ta_p; /* Process handle. */ unsigned int ti_user_flags; /* Unused. */ thread_t ti_tid; /* Thread ID returned by pthread_create(). */ char *ti_tls; /* Pointer to thread-local data. */ psaddr_t ti_startfunc; /* Start function passed to pthread_create(). */ psaddr_t ti_stkbase; /* Base of thread's stack. */ long int ti_stksize; /* Size of thread's stack. */ psaddr_t ti_ro_area; /* Unused. */ int ti_ro_size; /* Unused. */ td_thr_state_e ti_state; /* Thread state. */ unsigned char ti_db_suspended; /* Nonzero if suspended by debugger. */ td_thr_type_e ti_type; /* Type of the thread (system vs user thread). */ intptr_t ti_pc; /* Unused. */ intptr_t ti_sp; /* Unused. */ short int ti_flags; /* Unused. */ int ti_pri; /* Thread priority. */ lwpid_t ti_lid; /* Unused. */ sigset_t ti_sigmask; /* Signal mask. */ unsigned char ti_traceme; /* Nonzero if event reporting enabled. */ unsigned char ti_preemptflag; /* Unused. */ unsigned char ti_pirecflag; /* Unused. */ sigset_t ti_pending; /* Set of pending signals. */ td_thr_events_t ti_events; /* Set of enabled events. */ } td_thrinfo_t; /* Prototypes for exported library functions. */ /* Initialize the thread debug support library. */ extern td_err_e td_init (void); /* Historical relict. Should not be used anymore. */ extern td_err_e td_log (void); /* Return list of symbols the library can request. */ extern const char **td_symbol_list (void); /* Generate new thread debug library handle for process PS. */ extern td_err_e td_ta_new (struct ps_prochandle *__ps, td_thragent_t **__ta); /* Free resources allocated for TA. */ extern td_err_e td_ta_delete (td_thragent_t *__ta); /* Get number of currently running threads in process associated with TA. */ extern td_err_e td_ta_get_nthreads (const td_thragent_t *__ta, int *__np); /* Return process handle passed in `td_ta_new' for process associated with TA. */ extern td_err_e td_ta_get_ph (const td_thragent_t *__ta, struct ps_prochandle **__ph); /* Map thread library handle PT to thread debug library handle for process associated with TA and store result in *TH. */ extern td_err_e td_ta_map_id2thr (const td_thragent_t *__ta, pthread_t __pt, td_thrhandle_t *__th); /* Map process ID LWPID to thread debug library handle for process associated with TA and store result in *TH. */ extern td_err_e td_ta_map_lwp2thr (const td_thragent_t *__ta, lwpid_t __lwpid, td_thrhandle_t *__th); /* Call for each thread in a process associated with TA the callback function CALLBACK. */ extern td_err_e td_ta_thr_iter (const td_thragent_t *__ta, td_thr_iter_f *__callback, void *__cbdata_p, td_thr_state_e __state, int __ti_pri, sigset_t *__ti_sigmask_p, unsigned int __ti_user_flags); /* Call for each defined thread local data entry the callback function KI. */ extern td_err_e td_ta_tsd_iter (const td_thragent_t *__ta, td_key_iter_f *__ki, void *__p); /* Get event address for EVENT. */ extern td_err_e td_ta_event_addr (const td_thragent_t *__ta, td_event_e __event, td_notify_t *__ptr); /* Enable EVENT in global mask. */ extern td_err_e td_ta_set_event (const td_thragent_t *__ta, td_thr_events_t *__event); /* Disable EVENT in global mask. */ extern td_err_e td_ta_clear_event (const td_thragent_t *__ta, td_thr_events_t *__event); /* Return information about last event. */ extern td_err_e td_ta_event_getmsg (const td_thragent_t *__ta, td_event_msg_t *__msg); /* Set suggested concurrency level for process associated with TA. */ extern td_err_e td_ta_setconcurrency (const td_thragent_t *__ta, int __level); /* Enable collecting statistics for process associated with TA. */ extern td_err_e td_ta_enable_stats (const td_thragent_t *__ta, int __enable); /* Reset statistics. */ extern td_err_e td_ta_reset_stats (const td_thragent_t *__ta); /* Retrieve statistics from process associated with TA. */ extern td_err_e td_ta_get_stats (const td_thragent_t *__ta, td_ta_stats_t *__statsp); /* Validate that TH is a thread handle. */ extern td_err_e td_thr_validate (const td_thrhandle_t *__th); /* Return information about thread TH. */ extern td_err_e td_thr_get_info (const td_thrhandle_t *__th, td_thrinfo_t *__infop); /* Retrieve floating-point register contents of process running thread TH. */ extern td_err_e td_thr_getfpregs (const td_thrhandle_t *__th, prfpregset_t *__regset); /* Retrieve general register contents of process running thread TH. */ extern td_err_e td_thr_getgregs (const td_thrhandle_t *__th, prgregset_t __gregs); /* Retrieve extended register contents of process running thread TH. */ extern td_err_e td_thr_getxregs (const td_thrhandle_t *__th, void *__xregs); /* Get size of extended register set of process running thread TH. */ extern td_err_e td_thr_getxregsize (const td_thrhandle_t *__th, int *__sizep); /* Set floating-point register contents of process running thread TH. */ extern td_err_e td_thr_setfpregs (const td_thrhandle_t *__th, const prfpregset_t *__fpregs); /* Set general register contents of process running thread TH. */ extern td_err_e td_thr_setgregs (const td_thrhandle_t *__th, prgregset_t __gregs); /* Set extended register contents of process running thread TH. */ extern td_err_e td_thr_setxregs (const td_thrhandle_t *__th, const void *__addr); /* Get address of the given module's TLS storage area for the given thread. */ extern td_err_e td_thr_tlsbase (const td_thrhandle_t *__th, unsigned long int __modid, psaddr_t *__base); /* Get address of thread local variable. */ extern td_err_e td_thr_tls_get_addr (const td_thrhandle_t *__th, void *__map_address, size_t __offset, void **__address); /* Enable reporting for EVENT for thread TH. */ extern td_err_e td_thr_event_enable (const td_thrhandle_t *__th, int __event); /* Enable EVENT for thread TH. */ extern td_err_e td_thr_set_event (const td_thrhandle_t *__th, td_thr_events_t *__event); /* Disable EVENT for thread TH. */ extern td_err_e td_thr_clear_event (const td_thrhandle_t *__th, td_thr_events_t *__event); /* Get event message for thread TH. */ extern td_err_e td_thr_event_getmsg (const td_thrhandle_t *__th, td_event_msg_t *__msg); /* Set priority of thread TH. */ extern td_err_e td_thr_setprio (const td_thrhandle_t *__th, int __prio); /* Set pending signals for thread TH. */ extern td_err_e td_thr_setsigpending (const td_thrhandle_t *__th, unsigned char __n, const sigset_t *__ss); /* Set signal mask for thread TH. */ extern td_err_e td_thr_sigsetmask (const td_thrhandle_t *__th, const sigset_t *__ss); /* Return thread local data associated with key TK in thread TH. */ extern td_err_e td_thr_tsd (const td_thrhandle_t *__th, const thread_key_t __tk, void **__data); /* Suspend execution of thread TH. */ extern td_err_e td_thr_dbsuspend (const td_thrhandle_t *__th); /* Resume execution of thread TH. */ extern td_err_e td_thr_dbresume (const td_thrhandle_t *__th); #endif /* thread_db.h */


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