874478d7fd
SSE (or its successors). Reviewed by: marcel, davidxu MFC After: 2 weeks
786 lines
18 KiB
C
786 lines
18 KiB
C
/*
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* Copyright (c) 2004 Marcel Moolenaar
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* Copyright (c) 2005 David Xu
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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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#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 <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/ptrace.h>
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#include <thread_db.h>
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#include <unistd.h>
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#include "thread_db_int.h"
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#define TERMINATED 1
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struct td_thragent {
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TD_THRAGENT_FIELDS;
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psaddr_t libthr_debug_addr;
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psaddr_t thread_list_addr;
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psaddr_t thread_active_threads_addr;
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psaddr_t thread_keytable_addr;
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psaddr_t thread_last_event_addr;
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psaddr_t thread_event_mask_addr;
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psaddr_t thread_bp_create_addr;
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psaddr_t thread_bp_death_addr;
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int thread_off_dtv;
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int thread_off_tlsindex;
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int thread_off_attr_flags;
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int thread_size_key;
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int thread_off_tcb;
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int thread_off_linkmap;
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int thread_off_next;
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int thread_off_state;
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int thread_off_tid;
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int thread_max_keys;
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int thread_off_key_allocated;
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int thread_off_key_destructor;
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int thread_off_report_events;
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int thread_off_event_mask;
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int thread_off_event_buf;
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int thread_state_zoombie;
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int thread_state_running;
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};
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#define P2T(c) ps2td(c)
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static int pt_validate(const td_thrhandle_t *th);
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static int
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ps2td(int c)
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{
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switch (c) {
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case PS_OK:
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return TD_OK;
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case PS_ERR:
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return TD_ERR;
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case PS_BADPID:
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return TD_BADPH;
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case PS_BADLID:
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return TD_NOLWP;
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case PS_BADADDR:
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return TD_ERR;
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case PS_NOSYM:
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return TD_NOLIBTHREAD;
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case PS_NOFREGS:
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return TD_NOFPREGS;
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default:
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return TD_ERR;
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}
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}
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static td_err_e
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pt_init(void)
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{
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return (0);
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}
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static td_err_e
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pt_ta_new(struct ps_prochandle *ph, td_thragent_t **pta)
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{
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#define LOOKUP_SYM(proc, sym, addr) \
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ret = ps_pglobal_lookup(proc, NULL, sym, addr); \
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if (ret != 0) { \
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TDBG("can not find symbol: %s\n", sym); \
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ret = TD_NOLIBTHREAD; \
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goto error; \
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}
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#define LOOKUP_VAL(proc, sym, val) \
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ret = ps_pglobal_lookup(proc, NULL, sym, &vaddr);\
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if (ret != 0) { \
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TDBG("can not find symbol: %s\n", sym); \
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ret = TD_NOLIBTHREAD; \
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goto error; \
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} \
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ret = ps_pread(proc, vaddr, val, sizeof(int)); \
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if (ret != 0) { \
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TDBG("can not read value of %s\n", sym);\
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ret = TD_NOLIBTHREAD; \
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goto error; \
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}
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td_thragent_t *ta;
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psaddr_t vaddr;
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int dbg;
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int ret;
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TDBG_FUNC();
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ta = malloc(sizeof(td_thragent_t));
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if (ta == NULL)
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return (TD_MALLOC);
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ta->ph = ph;
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LOOKUP_SYM(ph, "_libthr_debug", &ta->libthr_debug_addr);
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LOOKUP_SYM(ph, "_thread_list", &ta->thread_list_addr);
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LOOKUP_SYM(ph, "_thread_active_threads",&ta->thread_active_threads_addr);
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LOOKUP_SYM(ph, "_thread_keytable", &ta->thread_keytable_addr);
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LOOKUP_SYM(ph, "_thread_last_event", &ta->thread_last_event_addr);
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LOOKUP_SYM(ph, "_thread_event_mask", &ta->thread_event_mask_addr);
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LOOKUP_SYM(ph, "_thread_bp_create", &ta->thread_bp_create_addr);
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LOOKUP_SYM(ph, "_thread_bp_death", &ta->thread_bp_death_addr);
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LOOKUP_VAL(ph, "_thread_off_dtv", &ta->thread_off_dtv);
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LOOKUP_VAL(ph, "_thread_off_tlsindex", &ta->thread_off_tlsindex);
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LOOKUP_VAL(ph, "_thread_off_attr_flags", &ta->thread_off_attr_flags);
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LOOKUP_VAL(ph, "_thread_size_key", &ta->thread_size_key);
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LOOKUP_VAL(ph, "_thread_off_tcb", &ta->thread_off_tcb);
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LOOKUP_VAL(ph, "_thread_off_tid", &ta->thread_off_tid);
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LOOKUP_VAL(ph, "_thread_off_linkmap", &ta->thread_off_linkmap);
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LOOKUP_VAL(ph, "_thread_off_next", &ta->thread_off_next);
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LOOKUP_VAL(ph, "_thread_off_state", &ta->thread_off_state);
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LOOKUP_VAL(ph, "_thread_max_keys", &ta->thread_max_keys);
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LOOKUP_VAL(ph, "_thread_off_key_allocated", &ta->thread_off_key_allocated);
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LOOKUP_VAL(ph, "_thread_off_key_destructor", &ta->thread_off_key_destructor);
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LOOKUP_VAL(ph, "_thread_state_running", &ta->thread_state_running);
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LOOKUP_VAL(ph, "_thread_state_zoombie", &ta->thread_state_zoombie);
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LOOKUP_VAL(ph, "_thread_off_report_events", &ta->thread_off_report_events);
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LOOKUP_VAL(ph, "_thread_off_event_mask", &ta->thread_off_event_mask);
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LOOKUP_VAL(ph, "_thread_off_event_buf", &ta->thread_off_event_buf);
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dbg = getpid();
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/*
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* If this fails it probably means we're debugging a core file and
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* can't write to it.
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*/
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ps_pwrite(ph, ta->libthr_debug_addr, &dbg, sizeof(int));
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*pta = ta;
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return (0);
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error:
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free(ta);
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return (ret);
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}
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static td_err_e
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pt_ta_delete(td_thragent_t *ta)
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{
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int dbg;
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TDBG_FUNC();
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dbg = 0;
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/*
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* Error returns from this write are not really a problem;
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* the process doesn't exist any more.
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*/
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ps_pwrite(ta->ph, ta->libthr_debug_addr, &dbg, sizeof(int));
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free(ta);
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return (TD_OK);
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}
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static td_err_e
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pt_ta_map_id2thr(const td_thragent_t *ta, thread_t id, td_thrhandle_t *th)
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{
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TAILQ_HEAD(, pthread) thread_list;
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psaddr_t pt;
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long lwp;
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int ret;
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TDBG_FUNC();
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if (id == 0)
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return (TD_NOTHR);
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ret = ps_pread(ta->ph, ta->thread_list_addr, &thread_list,
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sizeof(thread_list));
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if (ret != 0)
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return (P2T(ret));
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/* Iterate through thread list to find pthread */
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pt = (psaddr_t)thread_list.tqh_first;
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while (pt != NULL) {
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ret = ps_pread(ta->ph, pt + ta->thread_off_tid,
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&lwp, sizeof(lwp));
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if (ret != 0)
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return (P2T(ret));
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if (lwp == id)
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break;
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/* get next thread */
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ret = ps_pread(ta->ph,
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pt + ta->thread_off_next,
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&pt, sizeof(pt));
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if (ret != 0)
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return (P2T(ret));
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}
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if (pt == NULL)
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return (TD_NOTHR);
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th->th_ta = ta;
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th->th_tid = id;
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th->th_thread = pt;
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return (TD_OK);
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}
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static td_err_e
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pt_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwp, td_thrhandle_t *th)
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{
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return (pt_ta_map_id2thr(ta, lwp, th));
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}
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static td_err_e
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pt_ta_thr_iter(const td_thragent_t *ta,
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td_thr_iter_f *callback, void *cbdata_p,
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td_thr_state_e state, int ti_pri,
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sigset_t *ti_sigmask_p,
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unsigned int ti_user_flags)
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{
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TAILQ_HEAD(, pthread) thread_list;
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td_thrhandle_t th;
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psaddr_t pt;
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long lwp;
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int ret;
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TDBG_FUNC();
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ret = ps_pread(ta->ph, ta->thread_list_addr, &thread_list,
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sizeof(thread_list));
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if (ret != 0)
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return (P2T(ret));
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pt = (psaddr_t)thread_list.tqh_first;
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while (pt != 0) {
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ret = ps_pread(ta->ph, pt + ta->thread_off_tid, &lwp,
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sizeof(lwp));
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if (ret != 0)
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return (P2T(ret));
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if (lwp != 0 && lwp != TERMINATED) {
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th.th_ta = ta;
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th.th_tid = (thread_t)lwp;
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th.th_thread = pt;
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if ((*callback)(&th, cbdata_p))
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return (TD_DBERR);
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}
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/* get next thread */
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ret = ps_pread(ta->ph, pt + ta->thread_off_next, &pt,
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sizeof(pt));
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if (ret != 0)
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return (P2T(ret));
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}
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return (TD_OK);
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}
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static td_err_e
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pt_ta_tsd_iter(const td_thragent_t *ta, td_key_iter_f *ki, void *arg)
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{
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char *keytable;
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void *destructor;
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int i, ret, allocated;
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TDBG_FUNC();
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keytable = malloc(ta->thread_max_keys * ta->thread_size_key);
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if (keytable == NULL)
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return (TD_MALLOC);
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ret = ps_pread(ta->ph, (psaddr_t)ta->thread_keytable_addr, keytable,
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ta->thread_max_keys * ta->thread_size_key);
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if (ret != 0) {
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free(keytable);
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return (P2T(ret));
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}
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for (i = 0; i < ta->thread_max_keys; i++) {
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allocated = *(int *)(keytable + i * ta->thread_size_key +
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ta->thread_off_key_allocated);
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destructor = *(void **)(keytable + i * ta->thread_size_key +
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ta->thread_off_key_destructor);
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if (allocated) {
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ret = (ki)(i, destructor, arg);
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if (ret != 0) {
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free(keytable);
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return (TD_DBERR);
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}
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}
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}
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free(keytable);
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return (TD_OK);
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}
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static td_err_e
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pt_ta_event_addr(const td_thragent_t *ta, td_event_e event, td_notify_t *ptr)
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{
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TDBG_FUNC();
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switch (event) {
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case TD_CREATE:
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ptr->type = NOTIFY_BPT;
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ptr->u.bptaddr = ta->thread_bp_create_addr;
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return (0);
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case TD_DEATH:
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ptr->type = NOTIFY_BPT;
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ptr->u.bptaddr = ta->thread_bp_death_addr;
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return (0);
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default:
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return (TD_ERR);
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}
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}
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static td_err_e
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pt_ta_set_event(const td_thragent_t *ta, td_thr_events_t *events)
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{
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td_thr_events_t mask;
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int ret;
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TDBG_FUNC();
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ret = ps_pread(ta->ph, ta->thread_event_mask_addr, &mask,
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sizeof(mask));
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if (ret != 0)
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return (P2T(ret));
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mask |= *events;
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ret = ps_pwrite(ta->ph, ta->thread_event_mask_addr, &mask,
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sizeof(mask));
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return (P2T(ret));
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}
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static td_err_e
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pt_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *events)
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{
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td_thr_events_t mask;
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int ret;
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TDBG_FUNC();
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ret = ps_pread(ta->ph, ta->thread_event_mask_addr, &mask,
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sizeof(mask));
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if (ret != 0)
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return (P2T(ret));
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mask &= ~*events;
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ret = ps_pwrite(ta->ph, ta->thread_event_mask_addr, &mask,
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sizeof(mask));
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return (P2T(ret));
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}
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static td_err_e
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pt_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
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{
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static td_thrhandle_t handle;
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psaddr_t pt, pt_temp;
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td_thr_events_e tmp;
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long lwp;
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int ret;
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TDBG_FUNC();
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ret = ps_pread(ta->ph, ta->thread_last_event_addr, &pt, sizeof(pt));
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if (ret != 0)
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return (P2T(ret));
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if (pt == NULL)
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return (TD_NOMSG);
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/*
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* Take the event pointer, at the time, libthr only reports event
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* once a time, so it is not a link list.
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*/
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pt_temp = NULL;
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ps_pwrite(ta->ph, ta->thread_last_event_addr, &pt_temp, sizeof(pt_temp));
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/* Read event info */
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ret = ps_pread(ta->ph, pt + ta->thread_off_event_buf, msg, sizeof(*msg));
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if (ret != 0)
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return (P2T(ret));
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if (msg->event == 0)
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return (TD_NOMSG);
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/* Clear event */
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tmp = 0;
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ps_pwrite(ta->ph, pt + ta->thread_off_event_buf, &tmp, sizeof(tmp));
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/* Convert event */
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pt = (psaddr_t)msg->th_p;
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ret = ps_pread(ta->ph, pt + ta->thread_off_tid, &lwp, sizeof(lwp));
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if (ret != 0)
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return (P2T(ret));
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handle.th_ta = ta;
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handle.th_tid = lwp;
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handle.th_thread = pt;
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msg->th_p = &handle;
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return (0);
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}
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static td_err_e
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pt_dbsuspend(const td_thrhandle_t *th, int suspend)
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{
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td_thragent_t *ta = (td_thragent_t *)th->th_ta;
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int ret;
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TDBG_FUNC();
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ret = pt_validate(th);
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if (ret)
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return (ret);
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if (suspend)
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ret = ps_lstop(ta->ph, th->th_tid);
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else
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ret = ps_lcontinue(ta->ph, th->th_tid);
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return (P2T(ret));
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}
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static td_err_e
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pt_thr_dbresume(const td_thrhandle_t *th)
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{
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TDBG_FUNC();
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return pt_dbsuspend(th, 0);
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}
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static td_err_e
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pt_thr_dbsuspend(const td_thrhandle_t *th)
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{
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TDBG_FUNC();
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return pt_dbsuspend(th, 1);
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}
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static td_err_e
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pt_thr_validate(const td_thrhandle_t *th)
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{
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td_thrhandle_t temp;
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int ret;
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TDBG_FUNC();
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ret = pt_ta_map_id2thr(th->th_ta, th->th_tid, &temp);
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return (ret);
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}
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static td_err_e
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pt_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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int state;
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int ret;
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TDBG_FUNC();
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ret = pt_validate(th);
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if (ret)
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return (ret);
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ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_state,
|
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&state, sizeof(state));
|
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if (ret != 0)
|
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return (P2T(ret));
|
|
ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_report_events,
|
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&info->ti_traceme, sizeof(int));
|
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if (ret != 0)
|
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return (P2T(ret));
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ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_event_mask,
|
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&info->ti_events, sizeof(td_thr_events_t));
|
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if (ret != 0)
|
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return (P2T(ret));
|
|
ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_tcb,
|
|
&info->ti_tls, sizeof(void *));
|
|
info->ti_lid = th->th_tid;
|
|
info->ti_tid = th->th_tid;
|
|
info->ti_thread = th->th_thread;
|
|
info->ti_ta_p = th->th_ta;
|
|
if (state == ta->thread_state_running)
|
|
info->ti_state = TD_THR_RUN;
|
|
else if (state == ta->thread_state_zoombie)
|
|
info->ti_state = TD_THR_ZOMBIE;
|
|
else
|
|
info->ti_state = TD_THR_SLEEP;
|
|
info->ti_type = TD_THR_USER;
|
|
return (0);
|
|
}
|
|
|
|
#ifdef __i386__
|
|
static td_err_e
|
|
pt_thr_getxmmregs(const td_thrhandle_t *th, char *fxsave)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lgetxmmregs(ta->ph, th->th_tid, fxsave);
|
|
return (P2T(ret));
|
|
}
|
|
#endif
|
|
|
|
static td_err_e
|
|
pt_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *fpregs)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lgetfpregs(ta->ph, th->th_tid, fpregs);
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_getgregs(const td_thrhandle_t *th, prgregset_t gregs)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lgetregs(ta->ph, th->th_tid, gregs);
|
|
return (P2T(ret));
|
|
}
|
|
|
|
#ifdef __i386__
|
|
static td_err_e
|
|
pt_thr_setxmmregs(const td_thrhandle_t *th, const char *fxsave)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lsetxmmregs(ta->ph, th->th_tid, fxsave);
|
|
return (P2T(ret));
|
|
}
|
|
#endif
|
|
|
|
static td_err_e
|
|
pt_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *fpregs)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lsetfpregs(ta->ph, th->th_tid, fpregs);
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_setgregs(const td_thrhandle_t *th, const prgregset_t gregs)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
|
|
ret = pt_validate(th);
|
|
if (ret)
|
|
return (ret);
|
|
|
|
ret = ps_lsetregs(ta->ph, th->th_tid, gregs);
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_event_enable(const td_thrhandle_t *th, int en)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
ret = ps_pwrite(ta->ph, th->th_thread + ta->thread_off_report_events,
|
|
&en, sizeof(int));
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *setp)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
td_thr_events_t mask;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_event_mask,
|
|
&mask, sizeof(mask));
|
|
mask |= *setp;
|
|
ret = ps_pwrite(ta->ph, th->th_thread + ta->thread_off_event_mask,
|
|
&mask, sizeof(mask));
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *setp)
|
|
{
|
|
const td_thragent_t *ta = th->th_ta;
|
|
td_thr_events_t mask;
|
|
int ret;
|
|
|
|
TDBG_FUNC();
|
|
ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_event_mask,
|
|
&mask, sizeof(mask));
|
|
mask &= ~*setp;
|
|
ret = ps_pwrite(ta->ph, th->th_thread + ta->thread_off_event_mask,
|
|
&mask, sizeof(mask));
|
|
return (P2T(ret));
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
|
|
{
|
|
static td_thrhandle_t handle;
|
|
td_thragent_t *ta = (td_thragent_t *)th->th_ta;
|
|
psaddr_t pt, pt_temp;
|
|
long lwp;
|
|
int ret;
|
|
td_thr_events_e tmp;
|
|
|
|
TDBG_FUNC();
|
|
pt = th->th_thread;
|
|
ret = ps_pread(ta->ph, ta->thread_last_event_addr, &pt_temp, sizeof(pt_temp));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
/* Get event */
|
|
ret = ps_pread(ta->ph, pt + ta->thread_off_event_buf, msg, sizeof(*msg));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
if (msg->event == 0)
|
|
return (TD_NOMSG);
|
|
/*
|
|
* Take the event pointer, at the time, libthr only reports event
|
|
* once a time, so it is not a link list.
|
|
*/
|
|
if (pt == pt_temp) {
|
|
pt_temp = NULL;
|
|
ps_pwrite(ta->ph, ta->thread_last_event_addr, &pt_temp, sizeof(pt_temp));
|
|
}
|
|
/* Clear event */
|
|
tmp = 0;
|
|
ps_pwrite(ta->ph, pt + ta->thread_off_event_buf, &tmp, sizeof(tmp));
|
|
/* Convert event */
|
|
pt = (psaddr_t)msg->th_p;
|
|
ret = ps_pread(ta->ph, pt + ta->thread_off_tid, &lwp, sizeof(lwp));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
handle.th_ta = ta;
|
|
handle.th_tid = lwp;
|
|
handle.th_thread = pt;
|
|
msg->th_p = &handle;
|
|
return (0);
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_sstep(const td_thrhandle_t *th, int step)
|
|
{
|
|
TDBG_FUNC();
|
|
|
|
return pt_validate(th);
|
|
}
|
|
|
|
static int
|
|
pt_validate(const td_thrhandle_t *th)
|
|
{
|
|
|
|
if (th->th_tid == 0 || th->th_thread == NULL)
|
|
return (TD_ERR);
|
|
return (TD_OK);
|
|
}
|
|
|
|
static td_err_e
|
|
pt_thr_tls_get_addr(const td_thrhandle_t *th, void *_linkmap, size_t offset,
|
|
void **address)
|
|
{
|
|
char *obj_entry;
|
|
const td_thragent_t *ta = th->th_ta;
|
|
psaddr_t tcb_addr, *dtv_addr;
|
|
int tls_index, ret;
|
|
|
|
/* linkmap is a member of Obj_Entry */
|
|
obj_entry = (char *)_linkmap - ta->thread_off_linkmap;
|
|
|
|
/* get tlsindex of the object file */
|
|
ret = ps_pread(ta->ph,
|
|
obj_entry + ta->thread_off_tlsindex,
|
|
&tls_index, sizeof(tls_index));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
|
|
/* get thread tcb */
|
|
ret = ps_pread(ta->ph, th->th_thread + ta->thread_off_tcb,
|
|
&tcb_addr, sizeof(tcb_addr));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
|
|
/* get dtv array address */
|
|
ret = ps_pread(ta->ph, tcb_addr + ta->thread_off_dtv,
|
|
&dtv_addr, sizeof(dtv_addr));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
/* now get the object's tls block base address */
|
|
ret = ps_pread(ta->ph, &dtv_addr[tls_index+1], address,
|
|
sizeof(*address));
|
|
if (ret != 0)
|
|
return (P2T(ret));
|
|
|
|
*address += offset;
|
|
return (TD_OK);
|
|
}
|
|
|
|
struct ta_ops libthr_db_ops = {
|
|
.to_init = pt_init,
|
|
.to_ta_clear_event = pt_ta_clear_event,
|
|
.to_ta_delete = pt_ta_delete,
|
|
.to_ta_event_addr = pt_ta_event_addr,
|
|
.to_ta_event_getmsg = pt_ta_event_getmsg,
|
|
.to_ta_map_id2thr = pt_ta_map_id2thr,
|
|
.to_ta_map_lwp2thr = pt_ta_map_lwp2thr,
|
|
.to_ta_new = pt_ta_new,
|
|
.to_ta_set_event = pt_ta_set_event,
|
|
.to_ta_thr_iter = pt_ta_thr_iter,
|
|
.to_ta_tsd_iter = pt_ta_tsd_iter,
|
|
.to_thr_clear_event = pt_thr_clear_event,
|
|
.to_thr_dbresume = pt_thr_dbresume,
|
|
.to_thr_dbsuspend = pt_thr_dbsuspend,
|
|
.to_thr_event_enable = pt_thr_event_enable,
|
|
.to_thr_event_getmsg = pt_thr_event_getmsg,
|
|
.to_thr_get_info = pt_thr_get_info,
|
|
.to_thr_getfpregs = pt_thr_getfpregs,
|
|
.to_thr_getgregs = pt_thr_getgregs,
|
|
.to_thr_set_event = pt_thr_set_event,
|
|
.to_thr_setfpregs = pt_thr_setfpregs,
|
|
.to_thr_setgregs = pt_thr_setgregs,
|
|
.to_thr_validate = pt_thr_validate,
|
|
.to_thr_tls_get_addr = pt_thr_tls_get_addr,
|
|
|
|
/* FreeBSD specific extensions. */
|
|
.to_thr_sstep = pt_thr_sstep,
|
|
#ifdef __i386__
|
|
.to_thr_getxmmregs = pt_thr_getxmmregs,
|
|
.to_thr_setxmmregs = pt_thr_setxmmregs,
|
|
#endif
|
|
};
|