Date: Fri, 9 Jul 2010 13:53:25 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r209847 - head/sys/kern Message-ID: <201007091353.o69DrP8t052005@svn.freebsd.org>
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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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