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freebsd-dev/lib/libthread_db/thread_db.h
Pedro F. Giffuni 5e53a4f90f lib: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-26 02:00:33 +00:00

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