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Diffstat (limited to 'include')
| -rw-r--r-- | include/thread_db.h | 439 |
1 files changed, 0 insertions, 439 deletions
diff --git a/include/thread_db.h b/include/thread_db.h deleted file mode 100644 index b192d1f2e..000000000 --- a/include/thread_db.h +++ /dev/null @@ -1,439 +0,0 @@ -/* Copyright (C) 1999, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _THREAD_DB_H -#define _THREAD_DB_H 1 - -/* This is the debugger interface for the LinuxThreads library. It is - modelled closely after the interface with same names in Solaris with - the goal to share the same code in the debugger. */ -#include <pthread.h> -#include <stdint.h> -#include <sys/types.h> -#include <sys/procfs.h> - - -/* Error codes of the library. */ -typedef enum -{ - TD_OK, /* No error. */ - TD_ERR, /* No further specified error. */ - TD_NOTHR, /* No matching thread found. */ - TD_NOSV, /* No matching synchronization handle found. */ - TD_NOLWP, /* No matching light-weighted process found. */ - TD_BADPH, /* Invalid process handle. */ - TD_BADTH, /* Invalid thread handle. */ - TD_BADSH, /* Invalid synchronization handle. */ - TD_BADTA, /* Invalid thread agent. */ - TD_BADKEY, /* Invalid key. */ - TD_NOMSG, /* No event available. */ - TD_NOFPREGS, /* No floating-point register content available. */ - TD_NOLIBTHREAD, /* Application not linked with thread library. */ - TD_NOEVENT, /* Requested event is not supported. */ - TD_NOCAPAB, /* Capability not available. */ - TD_DBERR, /* Internal debug library error. */ - TD_NOAPLIC, /* Operation is not applicable. */ - TD_NOTSD, /* No thread-specific data available. */ - TD_MALLOC, /* Out of memory. */ - TD_PARTIALREG, /* Not entire register set was read or written. */ - TD_NOXREGS /* X register set not available for given thread. */ -} td_err_e; - - -/* Possible thread states. TD_THR_ANY_STATE is a pseudo-state used to - select threads regardless of state in td_ta_thr_iter(). */ -typedef enum -{ - TD_THR_ANY_STATE, - TD_THR_UNKNOWN, - TD_THR_STOPPED, - TD_THR_RUN, - TD_THR_ACTIVE, - TD_THR_ZOMBIE, - TD_THR_SLEEP, - TD_THR_STOPPED_ASLEEP -} td_thr_state_e; - -/* Thread type: user or system. TD_THR_ANY_TYPE is a pseudo-type used - to select threads regardless of type in td_ta_thr_iter(). */ -typedef enum -{ - TD_THR_ANY_TYPE, - TD_THR_USER, - TD_THR_SYSTEM -} td_thr_type_e; - - -/* Types of the debugging library. */ - -/* Handle for a process. This type is opaque. */ -typedef struct td_thragent td_thragent_t; - -/* The actual thread handle type. This is also opaque. */ -typedef struct td_thrhandle -{ - td_thragent_t *th_ta_p; - psaddr_t th_unique; -} td_thrhandle_t; - - -/* Flags for `td_ta_thr_iter'. */ -#define TD_THR_ANY_USER_FLAGS 0xffffffff -#define TD_THR_LOWEST_PRIORITY -20 -#define TD_SIGNO_MASK NULL - - -#define TD_EVENTSIZE 2 -#define BT_UISHIFT 5 /* log base 2 of BT_NBIPUI, to extract word index */ -#define BT_NBIPUI (1 << BT_UISHIFT) /* n bits per uint */ -#define BT_UIMASK (BT_NBIPUI - 1) /* to extract bit index */ - -/* Bitmask of enabled events. */ -typedef struct td_thr_events -{ - uint32_t event_bits[TD_EVENTSIZE]; -} td_thr_events_t; - -/* Event set manipulation macros. */ -#define __td_eventmask(n) \ - (UINT32_C (1) << (((n) - 1) & BT_UIMASK)) -#define __td_eventword(n) \ - ((UINT32_C ((n) - 1)) >> BT_UISHIFT) - -#define td_event_emptyset(setp) \ - do { \ - int __i; \ - for (__i = TD_EVENTSIZE; __i > 0; --__i) \ - (setp)->event_bits[__i - 1] = 0; \ - } while (0) - -#define td_event_fillset(setp) \ - do { \ - int __i; \ - for (__i = TD_EVENTSIZE; __i > 0; --__i) \ - (setp)->event_bits[__i - 1] = UINT32_C (0xffffffff); \ - } while (0) - -#define td_event_addset(setp, n) \ - (((setp)->event_bits[__td_eventword (n)]) |= __td_eventmask (n)) -#define td_event_delset(setp, n) \ - (((setp)->event_bits[__td_eventword (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); - - -/* 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 */ |