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-rw-r--r--arch/h8300/kernel/ptrace.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
deleted file mode 100644
index 748cf6585aa4..000000000000
--- a/arch/h8300/kernel/ptrace.c
+++ /dev/null
@@ -1,168 +0,0 @@
1/*
2 * linux/arch/h8300/kernel/ptrace.c
3 *
4 * Yoshinori Sato <ysato@users.sourceforge.jp>
5 *
6 * Based on:
7 * linux/arch/m68k/kernel/ptrace.c
8 *
9 * Copyright (C) 1994 by Hamish Macdonald
10 * Taken from linux/kernel/ptrace.c and modified for M680x0.
11 * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
12 *
13 * This file is subject to the terms and conditions of the GNU General
14 * Public License. See the file COPYING in the main directory of
15 * this archive for more details.
16 */
17
18#include <linux/kernel.h>
19#include <linux/sched.h>
20#include <linux/mm.h>
21#include <linux/smp.h>
22#include <linux/errno.h>
23#include <linux/ptrace.h>
24#include <linux/user.h>
25#include <linux/signal.h>
26
27#include <asm/uaccess.h>
28#include <asm/page.h>
29#include <asm/pgtable.h>
30#include <asm/processor.h>
31#include <asm/signal.h>
32
33/* cpu depend functions */
34extern long h8300_get_reg(struct task_struct *task, int regno);
35extern int h8300_put_reg(struct task_struct *task, int regno, unsigned long data);
36
37
38void user_disable_single_step(struct task_struct *child)
39{
40}
41
42/*
43 * does not yet catch signals sent when the child dies.
44 * in exit.c or in signal.c.
45 */
46
47void ptrace_disable(struct task_struct *child)
48{
49 user_disable_single_step(child);
50}
51
52long arch_ptrace(struct task_struct *child, long request,
53 unsigned long addr, unsigned long data)
54{
55 int ret;
56 int regno = addr >> 2;
57 unsigned long __user *datap = (unsigned long __user *) data;
58
59 switch (request) {
60 /* read the word at location addr in the USER area. */
61 case PTRACE_PEEKUSR: {
62 unsigned long tmp = 0;
63
64 if ((addr & 3) || addr >= sizeof(struct user)) {
65 ret = -EIO;
66 break ;
67 }
68
69 ret = 0; /* Default return condition */
70
71 if (regno < H8300_REGS_NO)
72 tmp = h8300_get_reg(child, regno);
73 else {
74 switch (regno) {
75 case 49:
76 tmp = child->mm->start_code;
77 break ;
78 case 50:
79 tmp = child->mm->start_data;
80 break ;
81 case 51:
82 tmp = child->mm->end_code;
83 break ;
84 case 52:
85 tmp = child->mm->end_data;
86 break ;
87 default:
88 ret = -EIO;
89 }
90 }
91 if (!ret)
92 ret = put_user(tmp, datap);
93 break ;
94 }
95
96 /* when I and D space are separate, this will have to be fixed. */
97 case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
98 if ((addr & 3) || addr >= sizeof(struct user)) {
99 ret = -EIO;
100 break ;
101 }
102
103 if (regno == PT_ORIG_ER0) {
104 ret = -EIO;
105 break ;
106 }
107 if (regno < H8300_REGS_NO) {
108 ret = h8300_put_reg(child, regno, data);
109 break ;
110 }
111 ret = -EIO;
112 break ;
113
114 case PTRACE_GETREGS: { /* Get all gp regs from the child. */
115 int i;
116 unsigned long tmp;
117 for (i = 0; i < H8300_REGS_NO; i++) {
118 tmp = h8300_get_reg(child, i);
119 if (put_user(tmp, datap)) {
120 ret = -EFAULT;
121 break;
122 }
123 datap++;
124 }
125 ret = 0;
126 break;
127 }
128
129 case PTRACE_SETREGS: { /* Set all gp regs in the child. */
130 int i;
131 unsigned long tmp;
132 for (i = 0; i < H8300_REGS_NO; i++) {
133 if (get_user(tmp, datap)) {
134 ret = -EFAULT;
135 break;
136 }
137 h8300_put_reg(child, i, tmp);
138 datap++;
139 }
140 ret = 0;
141 break;
142 }
143
144 default:
145 ret = ptrace_request(child, request, addr, data);
146 break;
147 }
148 return ret;
149}
150
151asmlinkage void do_syscall_trace(void)
152{
153 if (!test_thread_flag(TIF_SYSCALL_TRACE))
154 return;
155 if (!(current->ptrace & PT_PTRACED))
156 return;
157 ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
158 ? 0x80 : 0));
159 /*
160 * this isn't the same as continuing with a signal, but it will do
161 * for normal use. strace only continues with a signal if the
162 * stopping signal is not SIGTRAP. -brl
163 */
164 if (current->exit_code) {
165 send_sig(current->exit_code, current, 1);
166 current->exit_code = 0;
167 }
168}
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