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1. Add missing functions: libthr_dbresume,libthr_dbsuspend.

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2. Implement functions: libthr_db_thr_setfpregs, libthr_db_thr_setregs,
   libthr_db_ta_map_id2thr.
3. simplify libthr_db_thr_getfpregs, libthr_db_thr_getgregs.
This commit is contained in:
David Xu 2004-08-13 06:47:33 +00:00
parent 8781a7852f
commit d4ee712657
1 changed files with 77 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
lib/libthread_db/libthr_db.c
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@ -78,7 +78,34 @@ static td_err_e
libthr_db_ta_map_id2thr(const td_thragent_t *ta, thread_t tid,
td_thrhandle_t *th)
{
return (TD_ERR);
psaddr_t addr;
ps_err_e err;
thread_t lwpid;
th->th_ta = ta;
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, &lwpid, sizeof(thread_t));
if (err != PS_OK)
return (TD_ERR);
if (tid == lwpid) {
th->th_tid = tid;
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);
}
return (TD_NOTHR);
}
static td_err_e
@ -101,15 +128,17 @@ libthr_db_ta_map_lwp2thr(const td_thragent_t *ta, lwpid_t lwpid,
err = ps_pread(ta->ta_ph, addr, &tid, sizeof(thread_t));
if (err != PS_OK)
return (TD_ERR);
if (tid == lwpid)
if (tid == lwpid) {
th->th_tid = tid;
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);
}
return (TD_NOLWP);
return (TD_ERR);
}
static td_err_e
@ -181,6 +210,11 @@ libthr_db_ta_thr_iter(const td_thragent_t *ta, td_thr_iter_f *cb, void *data,
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);
@ -198,6 +232,24 @@ libthr_db_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *ev)
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)
{
@ -231,16 +283,10 @@ static td_err_e
libthr_db_thr_getfpregs(const td_thrhandle_t *th, prfpregset_t *r)
{
const td_thragent_t *ta;
psaddr_t addr;
thread_t tid;
ps_err_e err;
ta = th->th_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));
if (err != PS_OK)
return (TD_ERR);
err = ps_lgetfpregs(ta->ta_ph, tid, r);
err = ps_lgetfpregs(ta->ta_ph, (lwpid_t)th->th_tid, r);
return ((err == PS_OK) ? TD_OK : TD_ERR);
}
@ -249,15 +295,10 @@ libthr_db_thr_getgregs(const td_thrhandle_t *th, prgregset_t r)
{
const td_thragent_t *ta;
psaddr_t addr;
thread_t tid;
ps_err_e err;
ta = th->th_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));
if (err != PS_OK)
return (TD_ERR);
err = ps_lgetregs(ta->ta_ph, tid, r);
err = ps_lgetregs(ta->ta_ph, (lwpid_t)th->th_tid, r);
return ((err == PS_OK) ? TD_OK : TD_ERR);
}
@ -270,13 +311,19 @@ libthr_db_thr_set_event(const td_thrhandle_t *th, td_thr_events_t *ev)
static td_err_e
libthr_db_thr_setfpregs(const td_thrhandle_t *th, const prfpregset_t *r)
{
return (TD_ERR);
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)
{
return (TD_ERR);
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
@ -285,6 +332,12 @@ libthr_db_thr_validate(const td_thrhandle_t *th)
return (TD_ERR);
}
static td_err_e
libthr_db_sstep(const td_thrhandle_t *th, int step)
{
return (TD_OK);
}
struct ta_ops libthr_db_ops = {
.to_init = libthr_db_init,
@ -297,8 +350,9 @@ struct ta_ops libthr_db_ops = {
.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,
@ -307,5 +361,8 @@ struct ta_ops libthr_db_ops = {
.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_thr_validate = libthr_db_thr_validate,
/* FreeBSD specific extensions. */
.to_thr_sstep = libthr_db_sstep
};