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MFC r277915:

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Don't attempt to disable enabled fasttrap probes in an exiting process.

MFC r277914:
fasttrap_sigtrap(): use tdsendsignal() to send SIGTRAP.
This commit is contained in:
markj 2015-05-29 04:22:57 +00:00
parent 9bbe24351d
commit ec234b9b79
1 changed files with 8 additions and 3 deletions
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11
sys/cddl/contrib/opensolaris/uts/common/dtrace/fasttrap.c
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@ -295,7 +295,7 @@ fasttrap_sigtrap(proc_t *p, kthread_t *t, uintptr_t pc)
ksi->ksi_code = TRAP_DTRACE;
ksi->ksi_addr = (caddr_t)pc;
PROC_LOCK(p);
(void) tdksignal(t, SIGTRAP, ksi);
(void) tdsendsignal(p, t, SIGTRAP, ksi);
PROC_UNLOCK(p);
#endif
}
@ -1296,8 +1296,13 @@ fasttrap_pid_disable(void *arg, dtrace_id_t id, void *parg)
*/
if ((p = pfind(probe->ftp_pid)) != NULL) {
#ifdef __FreeBSD__
_PHOLD(p);
PROC_UNLOCK(p);
if (p->p_flag & P_WEXIT) {
PROC_UNLOCK(p);
p = NULL;
} else {
_PHOLD(p);
PROC_UNLOCK(p);
}
#endif
}