5e53a4f90f
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.
445 lines
9.5 KiB
C
445 lines
9.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2004 David Xu <davidxu@freebsd.org>
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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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* 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <proc_service.h>
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#include <stddef.h>
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#include <thread_db.h>
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#include <unistd.h>
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#include <sys/cdefs.h>
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#include <sys/endian.h>
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#include <sys/errno.h>
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#include <sys/linker_set.h>
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#include "thread_db_int.h"
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struct td_thragent
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{
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TD_THRAGENT_FIELDS;
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};
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static TAILQ_HEAD(, td_thragent) proclist = TAILQ_HEAD_INITIALIZER(proclist);
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SET_DECLARE(__ta_ops, struct ta_ops);
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td_err_e
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td_init(void)
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{
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td_err_e ret, tmp;
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struct ta_ops *ops_p, **ops_pp;
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ret = 0;
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SET_FOREACH(ops_pp, __ta_ops) {
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ops_p = *ops_pp;
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if (ops_p->to_init != NULL) {
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tmp = ops_p->to_init();
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if (tmp != TD_OK)
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ret = tmp;
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}
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}
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return (ret);
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}
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td_err_e
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td_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *events)
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{
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return (ta->ta_ops->to_ta_clear_event(ta, events));
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}
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td_err_e
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td_ta_delete(td_thragent_t *ta)
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{
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TAILQ_REMOVE(&proclist, ta, ta_next);
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return (ta->ta_ops->to_ta_delete(ta));
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}
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td_err_e
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td_ta_event_addr(const td_thragent_t *ta, td_event_e event, td_notify_t *ptr)
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{
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return (ta->ta_ops->to_ta_event_addr(ta, event, ptr));
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}
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td_err_e
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td_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
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{
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return (ta->ta_ops->to_ta_event_getmsg(ta, msg));
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}
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td_err_e
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td_ta_map_id2thr(const td_thragent_t *ta, thread_t id, td_thrhandle_t *th)
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{
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return (ta->ta_ops->to_ta_map_id2thr(ta, id, th));
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}
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td_err_e
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td_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwpid, td_thrhandle_t *th)
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{
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return (ta->ta_ops->to_ta_map_lwp2thr(ta, lwpid, th));
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}
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td_err_e
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td_ta_new(struct ps_prochandle *ph, td_thragent_t **pta)
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{
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struct ta_ops *ops_p, **ops_pp;
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SET_FOREACH(ops_pp, __ta_ops) {
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ops_p = *ops_pp;
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if (ops_p->to_ta_new(ph, pta) == TD_OK) {
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TAILQ_INSERT_HEAD(&proclist, *pta, ta_next);
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(*pta)->ta_ops = ops_p;
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return (TD_OK);
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}
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}
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return (TD_NOLIBTHREAD);
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}
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td_err_e
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td_ta_set_event(const td_thragent_t *ta, td_thr_events_t *events)
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{
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return (ta->ta_ops->to_ta_set_event(ta, events));
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}
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td_err_e
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td_ta_thr_iter(const td_thragent_t *ta, td_thr_iter_f *callback,
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void *cbdata_p, td_thr_state_e state, int ti_pri, sigset_t *ti_sigmask_p,
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unsigned int ti_user_flags)
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{
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return (ta->ta_ops->to_ta_thr_iter(ta, callback, cbdata_p, state,
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ti_pri, ti_sigmask_p, ti_user_flags));
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}
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td_err_e
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td_ta_tsd_iter(const td_thragent_t *ta, td_key_iter_f *callback,
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void *cbdata_p)
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{
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return (ta->ta_ops->to_ta_tsd_iter(ta, callback, cbdata_p));
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}
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td_err_e
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td_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *events)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_clear_event(th, events));
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}
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td_err_e
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td_thr_dbresume(const td_thrhandle_t *th)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_dbresume(th));
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}
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td_err_e
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td_thr_dbsuspend(const td_thrhandle_t *th)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_dbsuspend(th));
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}
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td_err_e
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td_thr_event_enable(const td_thrhandle_t *th, int en)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_event_enable(th, en));
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}
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td_err_e
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td_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_event_getmsg(th, msg));
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}
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td_err_e
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td_thr_old_get_info(const td_thrhandle_t *th, td_old_thrinfo_t *info)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_old_get_info(th, info));
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}
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__sym_compat(td_thr_get_info, td_thr_old_get_info, FBSD_1.0);
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td_err_e
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td_thr_get_info(const td_thrhandle_t *th, td_thrinfo_t *info)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_get_info(th, info));
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}
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#ifdef __i386__
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td_err_e
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td_thr_getxmmregs(const td_thrhandle_t *th, char *fxsave)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_getxmmregs(th, fxsave));
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}
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#endif
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td_err_e
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td_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *fpregset)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_getfpregs(th, fpregset));
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}
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td_err_e
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td_thr_getgregs(const td_thrhandle_t *th, prgregset_t gregs)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_getgregs(th, gregs));
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}
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td_err_e
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td_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *events)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_set_event(th, events));
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}
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#ifdef __i386__
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td_err_e
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td_thr_setxmmregs(const td_thrhandle_t *th, const char *fxsave)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_setxmmregs(th, fxsave));
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}
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#endif
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td_err_e
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td_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *fpregs)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_setfpregs(th, fpregs));
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}
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td_err_e
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td_thr_setgregs(const td_thrhandle_t *th, const prgregset_t gregs)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_setgregs(th, gregs));
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}
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td_err_e
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td_thr_validate(const td_thrhandle_t *th)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_validate(th));
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}
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td_err_e
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td_thr_tls_get_addr(const td_thrhandle_t *th, psaddr_t linkmap, size_t offset,
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psaddr_t *address)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_tls_get_addr(th, linkmap, offset, address));
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}
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/* FreeBSD specific extensions. */
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td_err_e
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td_thr_sstep(const td_thrhandle_t *th, int step)
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{
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const td_thragent_t *ta = th->th_ta;
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return (ta->ta_ops->to_thr_sstep(th, step));
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}
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/*
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* Support functions for reading from and writing to the target
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* address space.
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*/
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static int
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thr_pread(struct ps_prochandle *ph, psaddr_t addr, uint64_t *val,
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u_int size, u_int byteorder)
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{
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uint8_t buf[sizeof(*val)];
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ps_err_e err;
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if (size > sizeof(buf))
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return (EOVERFLOW);
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err = ps_pread(ph, addr, buf, size);
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if (err != PS_OK)
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return (EFAULT);
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switch (byteorder) {
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case BIG_ENDIAN:
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switch (size) {
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case 1:
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*val = buf[0];
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break;
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case 2:
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*val = be16dec(buf);
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break;
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case 4:
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*val = be32dec(buf);
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break;
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case 8:
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*val = be64dec(buf);
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break;
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default:
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return (EINVAL);
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}
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break;
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case LITTLE_ENDIAN:
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switch (size) {
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case 1:
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*val = buf[0];
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break;
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case 2:
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*val = le16dec(buf);
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break;
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case 4:
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*val = le32dec(buf);
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break;
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case 8:
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*val = le64dec(buf);
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break;
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default:
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return (EINVAL);
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}
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break;
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default:
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return (EINVAL);
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}
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return (0);
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}
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int
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thr_pread_int(const struct td_thragent *ta, psaddr_t addr, uint32_t *val)
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{
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uint64_t tmp;
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int error;
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error = thr_pread(ta->ph, addr, &tmp, sizeof(int), BYTE_ORDER);
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if (!error)
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*val = tmp;
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return (error);
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}
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int
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thr_pread_long(const struct td_thragent *ta, psaddr_t addr, uint64_t *val)
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{
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return (thr_pread(ta->ph, addr, val, sizeof(long), BYTE_ORDER));
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}
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int
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thr_pread_ptr(const struct td_thragent *ta, psaddr_t addr, psaddr_t *val)
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{
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uint64_t tmp;
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int error;
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error = thr_pread(ta->ph, addr, &tmp, sizeof(void *), BYTE_ORDER);
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if (!error)
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*val = tmp;
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return (error);
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}
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static int
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thr_pwrite(struct ps_prochandle *ph, psaddr_t addr, uint64_t val,
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u_int size, u_int byteorder)
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{
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uint8_t buf[sizeof(val)];
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ps_err_e err;
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if (size > sizeof(buf))
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return (EOVERFLOW);
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switch (byteorder) {
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case BIG_ENDIAN:
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switch (size) {
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case 1:
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buf[0] = (uint8_t)val;
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break;
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case 2:
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be16enc(buf, (uint16_t)val);
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break;
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case 4:
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be32enc(buf, (uint32_t)val);
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break;
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case 8:
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be64enc(buf, (uint64_t)val);
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break;
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default:
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return (EINVAL);
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}
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break;
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case LITTLE_ENDIAN:
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switch (size) {
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case 1:
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buf[0] = (uint8_t)val;
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break;
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case 2:
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le16enc(buf, (uint16_t)val);
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break;
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case 4:
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le32enc(buf, (uint32_t)val);
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break;
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case 8:
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le64enc(buf, (uint64_t)val);
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break;
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default:
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return (EINVAL);
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}
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break;
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default:
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return (EINVAL);
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}
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err = ps_pwrite(ph, addr, buf, size);
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return ((err != PS_OK) ? EFAULT : 0);
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}
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int
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thr_pwrite_int(const struct td_thragent *ta, psaddr_t addr, uint32_t val)
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{
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return (thr_pwrite(ta->ph, addr, val, sizeof(int), BYTE_ORDER));
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}
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int
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thr_pwrite_long(const struct td_thragent *ta, psaddr_t addr, uint64_t val)
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{
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return (thr_pwrite(ta->ph, addr, val, sizeof(long), BYTE_ORDER));
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}
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int
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thr_pwrite_ptr(const struct td_thragent *ta, psaddr_t addr, psaddr_t val)
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{
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return (thr_pwrite(ta->ph, addr, val, sizeof(void *), BYTE_ORDER));
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}
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