Sat Nov 19 19:06:12 2016 UTC ()
Add FALLTHROUGH commit


(christos)
diff -r1.4 -r1.5 src/sys/kern/sys_ptrace_common.c
cvs diff -r1.4 -r1.5 src/sys/kern/sys_ptrace_common.c (expand / switch to unified diff)

--- src/sys/kern/sys_ptrace_common.c 2016/11/12 20:03:17 1.4
+++ src/sys/kern/sys_ptrace_common.c 2016/11/19 19:06:12 1.5
@@ -1,14 +1,14 @@ @@ -1,14 +1,14 @@
1/* $NetBSD: sys_ptrace_common.c,v 1.4 2016/11/12 20:03:17 christos Exp $ */ 1/* $NetBSD: sys_ptrace_common.c,v 1.5 2016/11/19 19:06:12 christos Exp $ */
2 2
3/*- 3/*-
4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. 4 * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * This code is derived from software contributed to The NetBSD Foundation 7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Doran. 8 * by Andrew Doran.
9 * 9 *
10 * Redistribution and use in source and binary forms, with or without 10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions 11 * modification, are permitted provided that the following conditions
12 * are met: 12 * are met:
13 * 1. Redistributions of source code must retain the above copyright 13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer. 14 * notice, this list of conditions and the following disclaimer.
@@ -108,27 +108,27 @@ @@ -108,27 +108,27 @@
108 108
109/* 109/*
110 * References: 110 * References:
111 * (1) Bach's "The Design of the UNIX Operating System", 111 * (1) Bach's "The Design of the UNIX Operating System",
112 * (2) sys/miscfs/procfs from UCB's 4.4BSD-Lite distribution, 112 * (2) sys/miscfs/procfs from UCB's 4.4BSD-Lite distribution,
113 * (3) the "4.4BSD Programmer's Reference Manual" published 113 * (3) the "4.4BSD Programmer's Reference Manual" published
114 * by USENIX and O'Reilly & Associates. 114 * by USENIX and O'Reilly & Associates.
115 * The 4.4BSD PRM does a reasonably good job of documenting what the various 115 * The 4.4BSD PRM does a reasonably good job of documenting what the various
116 * ptrace() requests should actually do, and its text is quoted several times 116 * ptrace() requests should actually do, and its text is quoted several times
117 * in this file. 117 * in this file.
118 */ 118 */
119 119
120#include <sys/cdefs.h> 120#include <sys/cdefs.h>
121__KERNEL_RCSID(0, "$NetBSD: sys_ptrace_common.c,v 1.4 2016/11/12 20:03:17 christos Exp $"); 121__KERNEL_RCSID(0, "$NetBSD: sys_ptrace_common.c,v 1.5 2016/11/19 19:06:12 christos Exp $");
122 122
123#ifdef _KERNEL_OPT 123#ifdef _KERNEL_OPT
124#include "opt_ptrace.h" 124#include "opt_ptrace.h"
125#include "opt_ktrace.h" 125#include "opt_ktrace.h"
126#include "opt_pax.h" 126#include "opt_pax.h"
127#endif 127#endif
128 128
129#include <sys/param.h> 129#include <sys/param.h>
130#include <sys/systm.h> 130#include <sys/systm.h>
131#include <sys/proc.h> 131#include <sys/proc.h>
132#include <sys/errno.h> 132#include <sys/errno.h>
133#include <sys/exec.h> 133#include <sys/exec.h>
134#include <sys/pax.h> 134#include <sys/pax.h>
@@ -935,26 +935,27 @@ do_ptrace(struct ptrace_methods *ptm, st @@ -935,26 +935,27 @@ do_ptrace(struct ptrace_methods *ptm, st
935 uio.uio_resid = iov.iov_len; 935 uio.uio_resid = iov.iov_len;
936 uio.uio_rw = write ? UIO_WRITE : UIO_READ; 936 uio.uio_rw = write ? UIO_WRITE : UIO_READ;
937 uio.uio_vmspace = vm; 937 uio.uio_vmspace = vm;
938 938
939 error = ptm->ptm_doregs(l, lt, &uio); 939 error = ptm->ptm_doregs(l, lt, &uio);
940 uvmspace_free(vm); 940 uvmspace_free(vm);
941 } 941 }
942 break; 942 break;
943#endif 943#endif
944 944
945#ifdef PT_SETFPREGS 945#ifdef PT_SETFPREGS
946 case PT_SETFPREGS: 946 case PT_SETFPREGS:
947 write = 1; 947 write = 1;
 948 /*FALLTHROUGH*/
948#endif 949#endif
949#ifdef PT_GETFPREGS 950#ifdef PT_GETFPREGS
950 case PT_GETFPREGS: 951 case PT_GETFPREGS:
951 /* write = 0 done above. */ 952 /* write = 0 done above. */
952#endif 953#endif
953#if defined(PT_SETFPREGS) || defined(PT_GETFPREGS) 954#if defined(PT_SETFPREGS) || defined(PT_GETFPREGS)
954 tmp = data; 955 tmp = data;
955 if (tmp != 0 && t->p_nlwps > 1) { 956 if (tmp != 0 && t->p_nlwps > 1) {
956 lwp_delref(lt); 957 lwp_delref(lt);
957 mutex_enter(t->p_lock); 958 mutex_enter(t->p_lock);
958 lt = lwp_find(t, tmp); 959 lt = lwp_find(t, tmp);
959 if (lt == NULL) { 960 if (lt == NULL) {
960 mutex_exit(t->p_lock); 961 mutex_exit(t->p_lock);