Author: jhb
Date: Fri Jul 9 13:53:25 2010
New Revision: 209847
URL: http://svn.freebsd.org/changeset/base/209847
Log:
Refine a comment.
Reviewed by: bde
Modified:
head/sys/kern/kern_exec.c
Modified: head/sys/kern/kern_exec.c
==============================================================================
--- head/sys/kern/kern_exec.c Fri Jul 9 13:49:20 2010 (r209846)
+++ head/sys/kern/kern_exec.c Fri Jul 9 13:53:25 2010 (r209847)
@@ -754,11 +754,10 @@ interpret:
/*
* If tracing the process, trap to debugger so breakpoints
- * can be set before the program executes.
- * Use tdsignal to deliver signal to current thread, using
- * psignal may cause the signal to be delivered to wrong thread
- * because that thread will exit, remember we are going to enter
- * single thread mode.
+ * can be set before the program executes. We have to use
+ * tdsignal() to deliver the signal to the current thread
+ * since any other threads in this process will exit if
+ * execve() succeeds.
*/
if (p->p_flag & P_TRACED)
tdsignal(td, SIGTRAP);
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