1 files changed, 11 insertions, 45 deletions

diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 9486882..9d4e1ce 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -30,6 +30,17 @@
 #include <asm/elf.h>
 #include <asm/coprocessor.h>
 
+
+void user_enable_single_step(struct task_struct *child)
+{
+	child->ptrace |= PT_SINGLESTEP;
+}
+
+void user_disable_single_step(struct task_struct *child)
+{
+	child->ptrace &= ~PT_SINGLESTEP;
+}
+
 /*
  * Called by kernel/ptrace.c when detaching to disable single stepping.
  */
@@ -268,51 +279,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = ptrace_pokeusr(child, addr, data);
 		break;
 
-	/* continue and stop at next (return from) syscall */
-
-	case PTRACE_SYSCALL:
-	case PTRACE_CONT: /* restart after signal. */
-	{
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		if (request == PTRACE_SYSCALL)
-			set_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		else
-			clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->exit_code = data;
-		/* Make sure the single step bit is not set. */
-		child->ptrace &= ~PT_SINGLESTEP;
-		wake_up_process(child);
-		ret = 0;
-		break;
-	}
-
-	/*
-	 * make the child exit.  Best I can do is send it a sigkill.
-	 * perhaps it should be put in the status that it wants to
-	 * exit.
-	 */
-	case PTRACE_KILL:
-		ret = 0;
-		if (child->exit_state == EXIT_ZOMBIE)	/* already dead */
-			break;
-		child->exit_code = SIGKILL;
-		child->ptrace &= ~PT_SINGLESTEP;
-		wake_up_process(child);
-		break;
-
-	case PTRACE_SINGLESTEP:
-		ret = -EIO;
-		if (!valid_signal(data))
-			break;
-		clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-		child->ptrace |= PT_SINGLESTEP;
-		child->exit_code = data;
-		wake_up_process(child);
-		ret = 0;
-		break;
-
 	case PTRACE_GETREGS:
 		ret = ptrace_getregs(child, (void __user *) data);
 		break;