1 /* $NetBSD: trap.c,v 1.1 2022/04/02 11:16:06 skrll Exp $ */
2
3 /*-
4 * Copyright (c) 2022 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Nick Hudson.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 __KERNEL_RCSID(1, "$NetBSD: trap.c,v 1.1 2022/04/02 11:16:06 skrll Exp $");
34
35 #include <sys/param.h>
36 #include <sys/types.h>
37
38 #include <arm/frame.h>
39
40 #include <uvm/uvm_extern.h>
41
42 #include <arm/arm32/pmap.h>
43 #include <arm/arm32/machdep.h>
44
45 void
cpu_jump_onfault(struct trapframe * tf,const struct faultbuf * fb,int val)46 cpu_jump_onfault(struct trapframe *tf, const struct faultbuf *fb, int val)
47 {
48 tf->tf_r4 = fb->fb_reg[FB_R4];
49 tf->tf_r5 = fb->fb_reg[FB_R5];
50 tf->tf_r6 = fb->fb_reg[FB_R6];
51 tf->tf_r7 = fb->fb_reg[FB_R7];
52 tf->tf_r8 = fb->fb_reg[FB_R8];
53 tf->tf_r9 = fb->fb_reg[FB_R9];
54 tf->tf_r10 = fb->fb_reg[FB_R10];
55 tf->tf_r11 = fb->fb_reg[FB_R11];
56 tf->tf_r12 = fb->fb_reg[FB_R12];
57 tf->tf_svc_sp = fb->fb_reg[FB_R13];
58 tf->tf_pc = fb->fb_reg[FB_R14];
59 tf->tf_r0 = val;
60 }
61
62