summaryrefslogtreecommitdiffstats
path: root/arch/h8300/kernel/ptrace.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/h8300/kernel/ptrace.c')
-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 748cf65..0000000
--- a/arch/h8300/kernel/ptrace.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * linux/arch/h8300/kernel/ptrace.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Based on:
- * linux/arch/m68k/kernel/ptrace.c
- *
- * Copyright (C) 1994 by Hamish Macdonald
- * Taken from linux/kernel/ptrace.c and modified for M680x0.
- * linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/signal.h>
-
-/* cpu depend functions */
-extern long h8300_get_reg(struct task_struct *task, int regno);
-extern int h8300_put_reg(struct task_struct *task, int regno, unsigned long data);
-
-
-void user_disable_single_step(struct task_struct *child)
-{
-}
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-void ptrace_disable(struct task_struct *child)
-{
- user_disable_single_step(child);
-}
-
-long arch_ptrace(struct task_struct *child, long request,
- unsigned long addr, unsigned long data)
-{
- int ret;
- int regno = addr >> 2;
- unsigned long __user *datap = (unsigned long __user *) data;
-
- switch (request) {
- /* read the word at location addr in the USER area. */
- case PTRACE_PEEKUSR: {
- unsigned long tmp = 0;
-
- if ((addr & 3) || addr >= sizeof(struct user)) {
- ret = -EIO;
- break ;
- }
-
- ret = 0; /* Default return condition */
-
- if (regno < H8300_REGS_NO)
- tmp = h8300_get_reg(child, regno);
- else {
- switch (regno) {
- case 49:
- tmp = child->mm->start_code;
- break ;
- case 50:
- tmp = child->mm->start_data;
- break ;
- case 51:
- tmp = child->mm->end_code;
- break ;
- case 52:
- tmp = child->mm->end_data;
- break ;
- default:
- ret = -EIO;
- }
- }
- if (!ret)
- ret = put_user(tmp, datap);
- break ;
- }
-
- /* when I and D space are separate, this will have to be fixed. */
- case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
- if ((addr & 3) || addr >= sizeof(struct user)) {
- ret = -EIO;
- break ;
- }
-
- if (regno == PT_ORIG_ER0) {
- ret = -EIO;
- break ;
- }
- if (regno < H8300_REGS_NO) {
- ret = h8300_put_reg(child, regno, data);
- break ;
- }
- ret = -EIO;
- break ;
-
- case PTRACE_GETREGS: { /* Get all gp regs from the child. */
- int i;
- unsigned long tmp;
- for (i = 0; i < H8300_REGS_NO; i++) {
- tmp = h8300_get_reg(child, i);
- if (put_user(tmp, datap)) {
- ret = -EFAULT;
- break;
- }
- datap++;
- }
- ret = 0;
- break;
- }
-
- case PTRACE_SETREGS: { /* Set all gp regs in the child. */
- int i;
- unsigned long tmp;
- for (i = 0; i < H8300_REGS_NO; i++) {
- if (get_user(tmp, datap)) {
- ret = -EFAULT;
- break;
- }
- h8300_put_reg(child, i, tmp);
- datap++;
- }
- ret = 0;
- break;
- }
-
- default:
- ret = ptrace_request(child, request, addr, data);
- break;
- }
- return ret;
-}
-
-asmlinkage void do_syscall_trace(void)
-{
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
- if (!(current->ptrace & PT_PTRACED))
- return;
- ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
- ? 0x80 : 0));
- /*
- * this isn't the same as continuing with a signal, but it will do
- * for normal use. strace only continues with a signal if the
- * stopping signal is not SIGTRAP. -brl
- */
- if (current->exit_code) {
- send_sig(current->exit_code, current, 1);
- current->exit_code = 0;
- }
-}
OpenPOWER on IntegriCloud