mirror of
https://github.com/freebsd/freebsd-src
synced 2024-09-06 17:18:32 +00:00
Update debugger code for new libthr.
This commit is contained in:
David Xu
parent
a091d823ad
commit
e65421ba6f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=144519
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@ -1,5 +1,6 @@
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/*
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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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@ -28,341 +29,702 @@
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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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struct td_thragent {
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TD_THRAGENT_FIELDS;
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struct ps_prochandle *ta_ph;
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psaddr_t ta_thread_list;
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int ta_ofs_ctx;
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int ta_ofs_next;
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int ta_ofs_thr_id;
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struct pt_map {
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int used;
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lwpid_t lwp;
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psaddr_t thr;
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};
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static td_err_e
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libthr_db_init()
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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_listgen_addr;
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psaddr_t thread_active_threads_addr;
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psaddr_t thread_keytable_addr;
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int thread_inited;
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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_thr_locklevel;
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int thread_off_next;
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int thread_off_state;
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int thread_off_isdead;
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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_state_zoombie;
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int thread_state_running;
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struct pt_map *map;
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int map_len;
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};
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#define P2T(c) ps2td(c)
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static void pt_unmap_lwp(const td_thragent_t *ta, lwpid_t lwp);
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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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return (TD_OK);
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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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libthr_db_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *ev)
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static long
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pt_map_thread(const td_thragent_t *const_ta, long lwp, psaddr_t pt)
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{
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return (TD_ERR);
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}
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td_thragent_t *ta = __DECONST(td_thragent_t *, const_ta);
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struct pt_map *new;
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int i, first = -1;
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static td_err_e
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libthr_db_ta_delete(td_thragent_t *ta)
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{
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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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libthr_db_ta_event_addr(const td_thragent_t *ta, td_thr_events_e event,
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td_notify_t *n)
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{
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return (TD_ERR);
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}
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static td_err_e
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libthr_db_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
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{
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return (TD_ERR);
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}
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static td_err_e
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libthr_db_ta_map_id2thr(const td_thragent_t *ta, thread_t tid,
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td_thrhandle_t *th)
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{
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psaddr_t addr;
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ps_err_e err;
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thread_t lwpid;
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th->th_ta = ta;
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err = ps_pread(ta->ta_ph, ta->ta_thread_list, &th->th_thread,
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sizeof(th->th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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while (th->th_thread != NULL) {
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addr = (psaddr_t)((uintptr_t)th->th_thread +
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ta->ta_ofs_thr_id);
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err = ps_pread(ta->ta_ph, addr, &lwpid, sizeof(thread_t));
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if (err != PS_OK)
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return (TD_ERR);
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if (tid == lwpid) {
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th->th_tid = tid;
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return (TD_OK);
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/* leave zero out */
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for (i = 1; i < ta->map_len; ++i) {
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if (ta->map[i].used == 0) {
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if (first == -1)
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first = i;
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} else if (ta->map[i].lwp == lwp) {
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ta->map[i].thr = pt;
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return (i);
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}
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addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_next);
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err = ps_pread(ta->ta_ph, addr, &th->th_thread,
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sizeof(th->th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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}
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return (TD_NOTHR);
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}
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static td_err_e
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libthr_db_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwpid,
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td_thrhandle_t *th)
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{
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psaddr_t addr;
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thread_t tid;
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ps_err_e err;
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th->th_ta = ta;
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err = ps_pread(ta->ta_ph, ta->ta_thread_list, &th->th_thread,
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sizeof(th->th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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while (th->th_thread != NULL) {
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addr = (psaddr_t)((uintptr_t)th->th_thread +
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ta->ta_ofs_thr_id);
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err = ps_pread(ta->ta_ph, addr, &tid, sizeof(thread_t));
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if (err != PS_OK)
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return (TD_ERR);
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if (tid == lwpid) {
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th->th_tid = tid;
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return (TD_OK);
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if (first == -1) {
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if (ta->map_len == 0) {
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ta->map = calloc(20, sizeof(struct pt_map));
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if (ta->map == NULL)
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return (-1);
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ta->map_len = 20;
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first = 1;
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} else {
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new = realloc(ta->map,
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sizeof(struct pt_map) * ta->map_len * 2);
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if (new == NULL)
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return (-1);
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memset(new + ta->map_len, '\0', sizeof(struct pt_map) *
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ta->map_len);
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first = ta->map_len;
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ta->map = new;
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ta->map_len *= 2;
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}
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addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_next);
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err = ps_pread(ta->ta_ph, addr, &th->th_thread,
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sizeof(th->th_thread));
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if (err != PS_OK)
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return (TD_ERR);
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}
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return (TD_ERR);
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ta->map[first].used = 1;
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ta->map[first].thr = pt;
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ta->map[first].lwp = lwp;
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return (first);
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}
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static td_err_e
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libthr_db_ta_new(struct ps_prochandle *ph, td_thragent_t **ta_p)
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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 addr;
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ps_err_e err;
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psaddr_t vaddr;
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int dbg;
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int ret;
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err = ps_pglobal_lookup(ph, NULL, "_libthr_debug", &addr);
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if (err != PS_OK)
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return (TD_NOLIBTHREAD);
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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->ta_ph = ph;
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ta->ph = ph;
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ta->map = NULL;
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ta->map_len = 0;
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err = ps_pglobal_lookup(ph, NULL, "_thread_list", &ta->ta_thread_list);
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_ctx_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_ctx, sizeof(int));
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_next_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_next, sizeof(int));
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if (err != PS_OK)
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goto fail;
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err = ps_pglobal_lookup(ph, NULL, "_thread_thr_id_offset", &addr);
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if (err != PS_OK)
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goto fail;
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err = ps_pread(ph, addr, &ta->ta_ofs_thr_id, sizeof(int));
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if (err != PS_OK)
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goto fail;
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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_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_thr_locklevel", &ta->thread_off_thr_locklevel);
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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_off_isdead", &ta->thread_off_isdead);
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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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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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*ta_p = ta;
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return (TD_OK);
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fail:
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error:
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free(ta);
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*ta_p = NULL;
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return (TD_ERR);
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return (ret);
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}
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static td_err_e
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libthr_db_ta_set_event(const td_thragent_t *ta, td_thr_events_t *ev)
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pt_ta_delete(td_thragent_t *ta)
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{
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return (TD_ERR);
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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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if (ta->map)
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free(ta->map);
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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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libthr_db_ta_thr_iter(const td_thragent_t *ta, td_thr_iter_f *cb, void *data,
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td_thr_state_e state, int pri, sigset_t *mask, unsigned int flags)
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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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prgregset_t gregs;
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TAILQ_HEAD(, pthread) thread_list;
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psaddr_t pt;
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int ret, isdead;
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TDBG_FUNC();
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if (id < 0 || id >= ta->map_len || ta->map[id].used == 0)
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return (TD_NOTHR);
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if (ta->map[id].thr == NULL) {
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/* check lwp */
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ret = ptrace(PT_GETREGS, ta->map[id].lwp, (caddr_t)&gregs, 0);
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if (ret != 0) {
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/* no longer exists */
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ta->map[id].used = 0;
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return (TD_NOTHR);
|
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}
|
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} else {
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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 && ta->map[id].thr != pt) {
|
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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 == 0) {
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/* no longer exists */
|
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ta->map[id].used = 0;
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return (TD_NOTHR);
|
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}
|
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ret = ps_pread(ta->ph,
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pt + ta->thread_off_isdead,
|
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&isdead, sizeof(isdead));
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if (ret != 0)
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return (P2T(ret));
|
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if (isdead) {
|
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ta->map[id].used = 0;
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return (TD_NOTHR);
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}
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}
|
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th->th_ta = ta;
|
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th->th_tid = id;
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return (TD_OK);
|
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}
|
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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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TAILQ_HEAD(, pthread) thread_list;
|
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psaddr_t pt;
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long tmp_lwp;
|
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int ret;
|
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|
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TDBG_FUNC();
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|
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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,
|
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&tmp_lwp, sizeof(tmp_lwp));
|
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if (ret != 0)
|
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return (P2T(ret));
|
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if (tmp_lwp == (long)lwp)
|
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break;
|
||||
|
||||
/* get next thread */
|
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ret = ps_pread(ta->ph,
|
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pt + ta->thread_off_next,
|
||||
&pt, sizeof(pt));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
}
|
||||
if (pt == 0)
|
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return (TD_NOTHR);
|
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th->th_ta = ta;
|
||||
th->th_tid = pt_map_thread(ta, lwp, pt);
|
||||
if (th->th_tid == -1)
|
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return (TD_MALLOC);
|
||||
return (TD_OK);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_ta_thr_iter(const td_thragent_t *ta,
|
||||
td_thr_iter_f *callback, void *cbdata_p,
|
||||
td_thr_state_e state, int ti_pri,
|
||||
sigset_t *ti_sigmask_p,
|
||||
unsigned int ti_user_flags)
|
||||
{
|
||||
TAILQ_HEAD(, pthread) thread_list;
|
||||
td_thrhandle_t th;
|
||||
psaddr_t addr;
|
||||
ps_err_e err;
|
||||
long tmp_lwp;
|
||||
psaddr_t pt;
|
||||
int ret, isdead;
|
||||
|
||||
th.th_ta = ta;
|
||||
TDBG_FUNC();
|
||||
|
||||
err = ps_pread(ta->ta_ph, ta->ta_thread_list, &th.th_thread,
|
||||
sizeof(th.th_thread));
|
||||
if (err != PS_OK)
|
||||
return (TD_ERR);
|
||||
while (th.th_thread != NULL) {
|
||||
addr = (psaddr_t)((uintptr_t)th.th_thread +
|
||||
ta->ta_ofs_thr_id);
|
||||
err = ps_pread(ta->ta_ph, addr, &th.th_tid, sizeof(thread_t));
|
||||
if (err != PS_OK)
|
||||
return (TD_ERR);
|
||||
if (cb(&th, data) != 0)
|
||||
return (TD_OK);
|
||||
addr = (psaddr_t)((uintptr_t)th.th_thread + ta->ta_ofs_next);
|
||||
err = ps_pread(ta->ta_ph, addr, &th.th_thread,
|
||||
sizeof(th.th_thread));
|
||||
if (err != PS_OK)
|
||||
return (TD_ERR);
|
||||
ret = ps_pread(ta->ph, ta->thread_list_addr, &thread_list,
|
||||
sizeof(thread_list));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
|
||||
pt = (psaddr_t)thread_list.tqh_first;
|
||||
while (pt != 0) {
|
||||
ret = ps_pread(ta->ph, pt + ta->thread_off_isdead, &isdead,
|
||||
sizeof(isdead));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
if (!isdead) {
|
||||
ret = ps_pread(ta->ph, pt + ta->thread_off_tid, &tmp_lwp,
|
||||
sizeof(tmp_lwp));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
if (tmp_lwp != 0) {
|
||||
th.th_ta = ta;
|
||||
th.th_tid = pt_map_thread(ta, tmp_lwp, pt);
|
||||
if (th.th_tid == -1)
|
||||
return (TD_MALLOC);
|
||||
if ((*callback)(&th, cbdata_p))
|
||||
return (TD_DBERR);
|
||||
}
|
||||
}
|
||||
/* get next thread */
|
||||
ret = ps_pread(ta->ph, pt + ta->thread_off_next, &pt,
|
||||
sizeof(pt));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
}
|
||||
return (TD_OK);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *ev)
|
||||
pt_ta_tsd_iter(const td_thragent_t *ta, td_key_iter_f *ki, void *arg)
|
||||
{
|
||||
char *keytable;
|
||||
void *destructor;
|
||||
int i, ret, allocated;
|
||||
|
||||
TDBG_FUNC();
|
||||
|
||||
keytable = malloc(ta->thread_max_keys * ta->thread_size_key);
|
||||
if (keytable == NULL)
|
||||
return (TD_MALLOC);
|
||||
ret = ps_pread(ta->ph, (psaddr_t)ta->thread_keytable_addr, keytable,
|
||||
ta->thread_max_keys * ta->thread_size_key);
|
||||
if (ret != 0) {
|
||||
free(keytable);
|
||||
return (P2T(ret));
|
||||
}
|
||||
for (i = 0; i < ta->thread_max_keys; i++) {
|
||||
allocated = *(int *)(keytable + i * ta->thread_size_key +
|
||||
ta->thread_off_key_allocated);
|
||||
destructor = *(void **)(keytable + i * ta->thread_size_key +
|
||||
ta->thread_off_key_destructor);
|
||||
if (allocated) {
|
||||
ret = (ki)(i, destructor, arg);
|
||||
if (ret != 0) {
|
||||
free(keytable);
|
||||
return (TD_DBERR);
|
||||
}
|
||||
}
|
||||
}
|
||||
free(keytable);
|
||||
return (TD_OK);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_ta_event_addr(const td_thragent_t *ta, td_event_e event, td_notify_t *ptr)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_NOEVENT);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_ta_set_event(const td_thragent_t *ta, td_thr_events_t *events)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_dbresume(const td_thrhandle_t *th)
|
||||
{
|
||||
ps_err_e err;
|
||||
|
||||
err = ps_lcontinue(th->th_ta->ta_ph, (lwpid_t)th->th_tid);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_dbsuspend(const td_thrhandle_t *th)
|
||||
{
|
||||
ps_err_e err;
|
||||
|
||||
err = ps_lstop(th->th_ta->ta_ph, (lwpid_t)th->th_tid);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_event_enable(const td_thrhandle_t *th, int oo)
|
||||
pt_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *events)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
|
||||
pt_ta_event_getmsg(const td_thragent_t *ta, td_event_msg_t *msg)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_NOMSG);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_dbsuspend(const td_thrhandle_t *th, int suspend)
|
||||
{
|
||||
td_thragent_t *ta = (td_thragent_t *)th->th_ta;
|
||||
int ret;
|
||||
|
||||
TDBG_FUNC();
|
||||
|
||||
ret = pt_validate(th);
|
||||
if (ret)
|
||||
return (ret);
|
||||
|
||||
if (suspend)
|
||||
ret = ps_lstop(ta->ph, ta->map[th->th_tid].lwp);
|
||||
else
|
||||
ret = ps_lcontinue(ta->ph, ta->map[th->th_tid].lwp);
|
||||
return (P2T(ret));
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_dbresume(const td_thrhandle_t *th)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
|
||||
return pt_dbsuspend(th, 0);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_dbsuspend(const td_thrhandle_t *th)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
|
||||
return pt_dbsuspend(th, 1);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_validate(const td_thrhandle_t *th)
|
||||
{
|
||||
td_thrhandle_t temp;
|
||||
int ret;
|
||||
|
||||
TDBG_FUNC();
|
||||
|
||||
ret = pt_ta_map_id2thr(th->th_ta, th->th_tid,
|
||||
&temp);
|
||||
return (ret);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_get_info(const td_thrhandle_t *th, td_thrinfo_t *info)
|
||||
{
|
||||
const td_thragent_t *ta = th->th_ta;
|
||||
int state;
|
||||
int ret;
|
||||
|
||||
TDBG_FUNC();
|
||||
|
||||
ret = pt_validate(th);
|
||||
if (ret)
|
||||
return (ret);
|
||||
|
||||
memset(info, 0, sizeof(*info));
|
||||
if (ta->map[th->th_tid].thr == 0) {
|
||||
info->ti_type = TD_THR_SYSTEM;
|
||||
info->ti_lid = ta->map[th->th_tid].lwp;
|
||||
info->ti_tid = th->th_tid;
|
||||
info->ti_state = TD_THR_RUN;
|
||||
info->ti_type = TD_THR_SYSTEM;
|
||||
return (TD_OK);
|
||||
}
|
||||
ret = ps_pread(ta->ph, ta->map[th->th_tid].thr + ta->thread_off_state,
|
||||
&state, sizeof(state));
|
||||
if (ret != 0)
|
||||
return (P2T(ret));
|
||||
info->ti_lid = ta->map[th->th_tid].lwp;
|
||||
info->ti_tid = th->th_tid;
|
||||
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);
|
||||
}
|
||||
|
||||
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, ta->map[th->th_tid].lwp, 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,
|
||||
ta->map[th->th_tid].lwp, gregs);
|
||||
return (P2T(ret));
|
||||
}
|
||||
|
||||
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, ta->map[th->th_tid].lwp, 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, ta->map[th->th_tid].lwp, gregs);
|
||||
return (P2T(ret));
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_event_enable(const td_thrhandle_t *th, int en)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_get_info(const td_thrhandle_t *th, td_thrinfo_t *ti)
|
||||
{
|
||||
const td_thragent_t *ta;
|
||||
psaddr_t addr;
|
||||
thread_t tid;
|
||||
ps_err_e err;
|
||||
|
||||
ta = th->th_ta;
|
||||
ti->ti_ta_p = ta;
|
||||
addr = (psaddr_t)((uintptr_t)th->th_thread + ta->ta_ofs_thr_id);
|
||||
err = ps_pread(ta->ta_ph, addr, &tid, sizeof(thread_t));
|
||||
ti->ti_lid = tid;
|
||||
ti->ti_tid = tid;
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *r)
|
||||
{
|
||||
const td_thragent_t *ta;
|
||||
ps_err_e err;
|
||||
|
||||
ta = th->th_ta;
|
||||
err = ps_lgetfpregs(ta->ta_ph, (lwpid_t)th->th_tid, r);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_getgregs(const td_thrhandle_t *th, prgregset_t r)
|
||||
{
|
||||
const td_thragent_t *ta;
|
||||
psaddr_t addr;
|
||||
ps_err_e err;
|
||||
|
||||
ta = th->th_ta;
|
||||
err = ps_lgetregs(ta->ta_ph, (lwpid_t)th->th_tid, r);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *ev)
|
||||
pt_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *setp)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *r)
|
||||
{
|
||||
ps_err_e err;
|
||||
|
||||
err = ps_lsetfpregs(th->th_ta->ta_ph, (lwpid_t)th->th_tid, r);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_setgregs(const td_thrhandle_t *th, const prgregset_t r)
|
||||
{
|
||||
ps_err_e err;
|
||||
|
||||
err = ps_lsetregs(th->th_ta->ta_ph, (lwpid_t)th->th_tid, r);
|
||||
return ((err == PS_OK) ? TD_OK : TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_thr_validate(const td_thrhandle_t *th)
|
||||
pt_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *setp)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_ERR);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
libthr_db_sstep(const td_thrhandle_t *th, int step)
|
||||
pt_thr_event_getmsg(const td_thrhandle_t *th, td_event_msg_t *msg)
|
||||
{
|
||||
TDBG_FUNC();
|
||||
return (TD_NOMSG);
|
||||
}
|
||||
|
||||
static td_err_e
|
||||
pt_thr_sstep(const td_thrhandle_t *th, int step)
|
||||
{
|
||||
const td_thragent_t *ta = th->th_ta;
|
||||
int ret;
|
||||
|
||||
TDBG_FUNC();
|
||||
|
||||
ret = pt_validate(th);
|
||||
if (ret)
|
||||
return (ret);
|
||||
|
||||
if (ta->map[th->th_tid].thr == 0)
|
||||
return (TD_BADTH);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
pt_validate(const td_thrhandle_t *th)
|
||||
{
|
||||
|
||||
if (th->th_tid <= 0 || th->th_tid >= th->th_ta->map_len ||
|
||||
th->th_ta->map[th->th_tid].used == 0)
|
||||
return (TD_NOTHR);
|
||||
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, tcb_tp;
|
||||
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, ta->map[th->th_tid].thr +
|
||||
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 = libthr_db_init,
|
||||
|
||||
.to_ta_clear_event = libthr_db_ta_clear_event,
|
||||
.to_ta_delete = libthr_db_ta_delete,
|
||||
.to_ta_event_addr = libthr_db_ta_event_addr,
|
||||
.to_ta_event_getmsg = libthr_db_ta_event_getmsg,
|
||||
.to_ta_map_id2thr = libthr_db_ta_map_id2thr,
|
||||
.to_ta_map_lwp2thr = libthr_db_ta_map_lwp2thr,
|
||||
.to_ta_new = libthr_db_ta_new,
|
||||
.to_ta_set_event = libthr_db_ta_set_event,
|
||||
.to_ta_thr_iter = libthr_db_ta_thr_iter,
|
||||
.to_thr_clear_event = libthr_db_thr_clear_event,
|
||||
.to_thr_dbresume = libthr_dbresume,
|
||||
.to_thr_dbsuspend = libthr_dbsuspend,
|
||||
.to_thr_event_enable = libthr_db_thr_event_enable,
|
||||
.to_thr_event_getmsg = libthr_db_thr_event_getmsg,
|
||||
.to_thr_get_info = libthr_db_thr_get_info,
|
||||
.to_thr_getfpregs = libthr_db_thr_getfpregs,
|
||||
.to_thr_getgregs = libthr_db_thr_getgregs,
|
||||
.to_thr_set_event = libthr_db_thr_set_event,
|
||||
.to_thr_setfpregs = libthr_db_thr_setfpregs,
|
||||
.to_thr_setgregs = libthr_db_thr_setgregs,
|
||||
.to_thr_validate = libthr_db_thr_validate,
|
||||
.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 = libthr_db_sstep
|
||||
.to_thr_sstep = pt_thr_sstep,
|
||||
};
|
||||
|
|
|
|||
Loading…
Reference in a new issue