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authordavidxu <davidxu@FreeBSD.org>2004-08-13 06:47:33 +0000
committerdavidxu <davidxu@FreeBSD.org>2004-08-13 06:47:33 +0000
commitfd9ef6980b3e9e841e87bddbc8bfbb8ab4360be7 (patch)
treed89f844e997c7f094d2978e828cd37b7d2cf03a9 /lib/libthread_db/libthr_db.c
parent5e14731c016f2c72839a2bdb3be0cad21b6b53ff (diff)
downloadFreeBSD-src-fd9ef6980b3e9e841e87bddbc8bfbb8ab4360be7.zip
FreeBSD-src-fd9ef6980b3e9e841e87bddbc8bfbb8ab4360be7.tar.gz
1. Add missing functions: libthr_dbresume,libthr_dbsuspend.
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.
Diffstat (limited to 'lib/libthread_db/libthr_db.c')
-rw-r--r--lib/libthread_db/libthr_db.c97
1 files changed, 77 insertions, 20 deletions
diff --git a/lib/libthread_db/libthr_db.c b/lib/libthread_db/libthr_db.c
index 878fcb0..f5f387f 100644
--- a/lib/libthread_db/libthr_db.c
+++ b/lib/libthread_db/libthr_db.c
@@ -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);
@@ -199,6 +233,24 @@ libthr_db_thr_clear_event(const td_thrhandle_t *th, td_thr_events_t *ev)
}
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)
{
return (TD_ERR);
@@ -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
};
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