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Replace ptrace syscall with ps_lgetgregs to check a LWP's existence.

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This commit is contained in:
David Xu 2006-02-07 02:12:33 +00:00
parent f9d7b4d515
commit 4db106a906
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=155411
1 changed files with 2 additions and 2 deletions
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4
lib/libthread_db/libpthread_db.c
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@ -264,8 +264,8 @@ pt_ta_map_id2thr(const td_thragent_t *ta, thread_t id, td_thrhandle_t *th)
return (P2T(ret));
}
/* check lwp */
ret = ptrace(PT_GETREGS, ta->map[id].lwp, (caddr_t)&gregs, 0);
if (ret != 0) {
ret = ps_lgetregs(ta->ph, ta->map[id].lwp, gregs);
if (ret != PS_OK) {
/* no longer exists */
ta->map[id].type = PT_NONE;
return (TD_NOTHR);