191 lines
6.7 KiB
C
191 lines
6.7 KiB
C
/* $NetBSD: pthread_dbg.h,v 1.5 2004/06/02 21:18:25 nathanw Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2002 Wasabi Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Written by Nathan J. Williams for Wasabi Systems, Inc.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed for the NetBSD Project by
|
|
* Wasabi Systems, Inc.
|
|
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
* or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <signal.h>
|
|
|
|
struct td_proc_st;
|
|
struct td_thread_st;
|
|
struct td_sync_st;
|
|
|
|
typedef struct td_proc_st td_proc_t;
|
|
typedef struct td_thread_st td_thread_t;
|
|
typedef struct td_sync_st td_sync_t;
|
|
|
|
struct td_proc_callbacks_t {
|
|
int (*proc_read)(void *arg, caddr_t addr, void *buf, size_t size);
|
|
int (*proc_write)(void *arg, caddr_t addr, void *buf, size_t size);
|
|
int (*proc_lookup)(void *arg, char *sym, caddr_t *addr);
|
|
int (*proc_regsize)(void *arg, int regset, size_t *size);
|
|
int (*proc_getregs)(void *arg, int regset, int lwp, void *buf);
|
|
int (*proc_setregs)(void *arg, int regset, int lwp, void *buf);
|
|
};
|
|
|
|
|
|
typedef struct td_thread_info_st {
|
|
caddr_t thread_addr; /* Address of data structure */
|
|
int thread_state; /* TD_STATE_*; see below */
|
|
int thread_type; /* TD_TYPE_*; see below */
|
|
int thread_id;
|
|
stack_t thread_stack;
|
|
int thread_hasjoiners; /* 1 if threads are waiting */
|
|
caddr_t thread_tls;
|
|
int thread_errno;
|
|
sigset_t thread_sigmask;
|
|
sigset_t thread_sigpending;
|
|
long pad[32];
|
|
} td_thread_info_t;
|
|
|
|
#define TD_STATE_UNKNOWN 0
|
|
#define TD_STATE_RUNNING 1 /* On a processor */
|
|
#define TD_STATE_RUNNABLE 2 /* On a run queue */
|
|
#define TD_STATE_BLOCKED 3 /* Blocked in the kernel */
|
|
#define TD_STATE_SLEEPING 4 /* Blocked on a sync object */
|
|
#define TD_STATE_ZOMBIE 5
|
|
#define TD_STATE_SUSPENDED 6 /* Removed from run queues */
|
|
|
|
#define TD_TYPE_UNKNOWN 0
|
|
#define TD_TYPE_USER 1
|
|
#define TD_TYPE_SYSTEM 2
|
|
|
|
typedef struct {
|
|
caddr_t sync_addr; /* Address within the process */
|
|
int sync_type; /* TD_SYNC_*; see below */
|
|
size_t sync_size;
|
|
int sync_haswaiters; /* 1 if threads are known to be waiting */
|
|
union {
|
|
struct {
|
|
int locked;
|
|
td_thread_t *owner;
|
|
} mutex;
|
|
struct {
|
|
int locked;
|
|
} spin;
|
|
struct {
|
|
td_thread_t *thread;
|
|
} join;
|
|
struct {
|
|
int locked;
|
|
int readlocks;
|
|
td_thread_t *writeowner;
|
|
} rwlock;
|
|
long pad[8];
|
|
} sync_data;
|
|
} td_sync_info_t;
|
|
|
|
#define TD_SYNC_UNKNOWN 0
|
|
#define TD_SYNC_MUTEX 1 /* pthread_mutex_t */
|
|
#define TD_SYNC_COND 2 /* pthread_cond_t */
|
|
#define TD_SYNC_SPIN 3 /* pthread_spinlock_t */
|
|
#define TD_SYNC_JOIN 4 /* thread being joined */
|
|
#define TD_SYNC_RWLOCK 5 /* pthread_rwlock_t */
|
|
|
|
/* Error return codes */
|
|
#define TD_ERR_OK 0
|
|
#define TD_ERR_ERR 1 /* Generic error */
|
|
#define TD_ERR_NOSYM 2 /* Symbol not found (proc_lookup) */
|
|
#define TD_ERR_NOOBJ 3 /* No object matched the request */
|
|
#define TD_ERR_BADTHREAD 4 /* Request is not meaningful for that thread */
|
|
#define TD_ERR_INUSE 5 /* The process is already being debugged */
|
|
#define TD_ERR_NOLIB 6 /* The process is not using libpthread */
|
|
#define TD_ERR_NOMEM 7 /* malloc() failed */
|
|
#define TD_ERR_IO 8 /* A callback failed to read or write */
|
|
#define TD_ERR_INVAL 9 /* Invalid parameter */
|
|
|
|
/* Make a connection to a threaded process */
|
|
int td_open(struct td_proc_callbacks_t *, void *arg, td_proc_t **);
|
|
int td_close(td_proc_t *);
|
|
|
|
/* Iterate over the threads in the process */
|
|
int td_thr_iter(td_proc_t *, int (*)(td_thread_t *, void *), void *);
|
|
|
|
/* Get information on a thread */
|
|
int td_thr_info(td_thread_t *, td_thread_info_t *);
|
|
|
|
/* Get the user-assigned name of a thread */
|
|
int td_thr_getname(td_thread_t *, char *, int);
|
|
|
|
/* Get register state of a thread */
|
|
int td_thr_getregs(td_thread_t *, int, void *);
|
|
|
|
/* Set register state of a thread */
|
|
int td_thr_setregs(td_thread_t *, int, void *);
|
|
|
|
/* Iterate over the set of threads that are joining with the given thread */
|
|
int td_thr_join_iter(td_thread_t *, int (*)(td_thread_t *, void *), void *);
|
|
|
|
/* Get the synchronization object that the thread is sleeping on */
|
|
int td_thr_sleepinfo(td_thread_t *, td_sync_t **);
|
|
|
|
/* Get information on a synchronization object */
|
|
int td_sync_info(td_sync_t *, td_sync_info_t *);
|
|
|
|
/* Iterate over the set of threads waiting on a synchronization object */
|
|
int td_sync_waiters_iter(td_sync_t *, int (*)(td_thread_t *, void *), void *);
|
|
|
|
/* Convert the process address to a synchronization handle, if possible */
|
|
int td_map_addr2sync(td_proc_t *, caddr_t addr, td_sync_t **);
|
|
|
|
/* Convert the pthread_t to a thread handle, if possible */
|
|
int td_map_pth2thr(td_proc_t *, pthread_t, td_thread_t **);
|
|
|
|
/* Convert the thread ID to a thread handle, if possible */
|
|
int td_map_id2thr(td_proc_t *, int, td_thread_t **);
|
|
|
|
/* Return the thread handle of the thread running on the given LWP */
|
|
int td_map_lwp2thr(td_proc_t *, int, td_thread_t **);
|
|
|
|
/*
|
|
* Establish a mapping between threads and LWPs. Must be called
|
|
* every time a live process runs before calling td_thr_getregs() or
|
|
* td_thr_setregs().
|
|
*/
|
|
int td_map_lwps(td_proc_t *);
|
|
|
|
/* Iterate over the set of TSD keys in the process */
|
|
int td_tsd_iter(td_proc_t *, int (*)(pthread_key_t, void (*)(void *), void *),
|
|
void *);
|
|
|
|
/* Get a TSD value from a thread */
|
|
int td_thr_tsd(td_thread_t *, pthread_key_t, void **);
|
|
|
|
/* Suspend a thread from running */
|
|
int td_thr_suspend(td_thread_t *);
|
|
|
|
/* Restore a suspended thread to its previous state */
|
|
int td_thr_resume(td_thread_t *);
|