mirror of
https://github.com/freebsd/freebsd-src
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251 lines
6.3 KiB
C
251 lines
6.3 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2004 David Xu <davidxu@freebsd.org>
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* Copyright (c) 2004 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _THREAD_DB_H_
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#define _THREAD_DB_H_
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#include <sys/procfs.h>
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#include <pthread.h>
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typedef enum {
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TD_ERR = -1, /* Unspecified error. */
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TD_OK = 0, /* No error. */
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TD_BADKEY,
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TD_BADPH,
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TD_BADSH,
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TD_BADTA,
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TD_BADTH,
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TD_DBERR,
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TD_MALLOC,
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TD_NOAPLIC,
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TD_NOCAPAB,
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TD_NOEVENT,
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TD_NOFPREGS,
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TD_NOLIBTHREAD,
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TD_NOLWP,
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TD_NOMSG,
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TD_NOSV,
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TD_NOTHR,
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TD_NOTSD,
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TD_NOXREGS,
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TD_PARTIALREG
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} td_err_e;
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struct ps_prochandle;
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typedef struct td_thragent td_thragent_t;
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typedef long thread_t; /* Must be an integral type. */
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typedef struct {
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const td_thragent_t *th_ta;
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psaddr_t th_thread;
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thread_t th_tid;
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} td_thrhandle_t; /* Used non-opaguely. */
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/*
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* Events.
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*/
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typedef enum {
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TD_EVENT_NONE = 0,
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TD_CATCHSIG = 0x0001,
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TD_CONCURRENCY= 0x0002,
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TD_CREATE = 0x0004,
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TD_DEATH = 0x0008,
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TD_IDLE = 0x0010,
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TD_LOCK_TRY = 0x0020,
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TD_PREEMPT = 0x0040,
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TD_PRI_INHERIT= 0x0080,
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TD_READY = 0x0100,
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TD_REAP = 0x0200,
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TD_SLEEP = 0x0400,
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TD_SWITCHFROM = 0x0800,
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TD_SWITCHTO = 0x1000,
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TD_TIMEOUT = 0x2000,
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TD_ALL_EVENTS = ~0
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} td_thr_events_e;
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/* Compatibility with Linux. */
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#define td_event_e td_thr_events_e
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typedef struct {
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td_thr_events_e event;
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psaddr_t th_p;
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uintptr_t data;
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} td_event_msg_t;
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typedef unsigned int td_thr_events_t;
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typedef enum {
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NOTIFY_BPT, /* User inserted breakpoint. */
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NOTIFY_AUTOBPT, /* Automatic breakpoint. */
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NOTIFY_SYSCALL /* Invocation of system call. */
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} td_notify_e;
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typedef struct {
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td_notify_e type;
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union {
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psaddr_t bptaddr;
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int syscallno;
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} u;
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} td_notify_t;
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static __inline void
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td_event_addset(td_thr_events_t *es, td_thr_events_e e)
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{
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*es |= e;
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}
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static __inline void
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td_event_delset(td_thr_events_t *es, td_thr_events_e e)
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{
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*es &= ~e;
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}
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static __inline void
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td_event_emptyset(td_thr_events_t *es)
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{
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*es = TD_EVENT_NONE;
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}
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static __inline void
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td_event_fillset(td_thr_events_t *es)
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{
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*es = TD_ALL_EVENTS;
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}
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static __inline int
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td_eventisempty(td_thr_events_t *es)
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{
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return ((*es == TD_EVENT_NONE) ? 1 : 0);
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}
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static __inline int
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td_eventismember(td_thr_events_t *es, td_thr_events_e e)
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{
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return ((*es & e) ? 1 : 0);
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}
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/*
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* Thread info.
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*/
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typedef enum {
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TD_THR_UNKNOWN = -1,
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TD_THR_ANY_STATE = 0,
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TD_THR_ACTIVE,
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TD_THR_RUN,
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TD_THR_SLEEP,
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TD_THR_STOPPED,
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TD_THR_STOPPED_ASLEEP,
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TD_THR_ZOMBIE
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} td_thr_state_e;
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typedef enum
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{
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TD_THR_SYSTEM = 1,
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TD_THR_USER
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} td_thr_type_e;
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typedef pthread_key_t thread_key_t;
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typedef struct {
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const td_thragent_t *ti_ta_p;
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thread_t ti_tid;
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psaddr_t ti_thread;
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td_thr_state_e ti_state;
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td_thr_type_e ti_type;
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td_thr_events_t ti_events;
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int ti_pri;
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lwpid_t ti_lid;
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char ti_db_suspended;
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char ti_traceme;
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sigset_t ti_sigmask;
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sigset_t ti_pending;
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psaddr_t ti_tls;
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psaddr_t ti_startfunc;
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psaddr_t ti_stkbase;
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size_t ti_stksize;
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siginfo_t ti_siginfo;
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} td_thrinfo_t;
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/*
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* Prototypes.
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*/
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typedef int td_key_iter_f(thread_key_t, void (*)(void *), void *);
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typedef int td_thr_iter_f(const td_thrhandle_t *, void *);
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/* Flags for `td_ta_thr_iter'. */
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#define TD_THR_ANY_USER_FLAGS 0xffffffff
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#define TD_THR_LOWEST_PRIORITY -20
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#define TD_SIGNO_MASK NULL
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__BEGIN_DECLS
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td_err_e td_init(void);
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td_err_e td_ta_clear_event(const td_thragent_t *, td_thr_events_t *);
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td_err_e td_ta_delete(td_thragent_t *);
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td_err_e td_ta_event_addr(const td_thragent_t *, td_thr_events_e,
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td_notify_t *);
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td_err_e td_ta_event_getmsg(const td_thragent_t *, td_event_msg_t *);
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td_err_e td_ta_map_id2thr(const td_thragent_t *, thread_t, td_thrhandle_t *);
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td_err_e td_ta_map_lwp2thr(const td_thragent_t *, lwpid_t, td_thrhandle_t *);
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td_err_e td_ta_new(struct ps_prochandle *, td_thragent_t **);
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td_err_e td_ta_set_event(const td_thragent_t *, td_thr_events_t *);
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td_err_e td_ta_thr_iter(const td_thragent_t *, td_thr_iter_f *, void *,
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td_thr_state_e, int, sigset_t *, unsigned int);
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td_err_e td_ta_tsd_iter(const td_thragent_t *, td_key_iter_f *, void *);
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td_err_e td_thr_clear_event(const td_thrhandle_t *, td_thr_events_t *);
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td_err_e td_thr_dbresume(const td_thrhandle_t *);
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td_err_e td_thr_dbsuspend(const td_thrhandle_t *);
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td_err_e td_thr_event_enable(const td_thrhandle_t *, int);
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td_err_e td_thr_event_getmsg(const td_thrhandle_t *, td_event_msg_t *);
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td_err_e td_thr_get_info(const td_thrhandle_t *, td_thrinfo_t *);
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#ifdef __i386__
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td_err_e td_thr_getxmmregs(const td_thrhandle_t *, char *);
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#endif
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td_err_e td_thr_getfpregs(const td_thrhandle_t *, prfpregset_t *);
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td_err_e td_thr_getgregs(const td_thrhandle_t *, prgregset_t);
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td_err_e td_thr_set_event(const td_thrhandle_t *, td_thr_events_t *);
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#ifdef __i386__
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td_err_e td_thr_setxmmregs(const td_thrhandle_t *, const char *);
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#endif
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td_err_e td_thr_setfpregs(const td_thrhandle_t *, const prfpregset_t *);
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td_err_e td_thr_setgregs(const td_thrhandle_t *, const prgregset_t);
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td_err_e td_thr_validate(const td_thrhandle_t *);
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td_err_e td_thr_tls_get_addr(const td_thrhandle_t *, psaddr_t, size_t,
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psaddr_t *);
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/* FreeBSD specific extensions. */
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td_err_e td_thr_sstep(const td_thrhandle_t *, int);
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__END_DECLS
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#endif /* _THREAD_DB_H_ */
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