Merge branch 'timers-for-linus-cleanups' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / arch / arm / kernel / ptrace.c

diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 08f899f..3f562a7 100644 (file)
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -452,12 +452,23 @@ void ptrace_cancel_bpt(struct task_struct *child)
                clear_breakpoint(child, &child->thread.debug.bp[i]);
 }
 
+void user_disable_single_step(struct task_struct *task)
+{
+       task->ptrace &= ~PT_SINGLESTEP;
+       ptrace_cancel_bpt(task);
+}
+
+void user_enable_single_step(struct task_struct *task)
+{
+       task->ptrace |= PT_SINGLESTEP;
+}
+
 /*
  * Called by kernel/ptrace.c when detaching..
  */
 void ptrace_disable(struct task_struct *child)
 {
-       single_step_disable(child);
+       user_disable_single_step(child);
 }
 
 /*
@@ -753,53 +764,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                        ret = ptrace_write_user(child, addr, data);
                        break;
 
-               /*
-                * continue/restart and stop at next (return from) syscall
-                */
-               case PTRACE_SYSCALL:
-               case PTRACE_CONT:
-                       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;
-                       single_step_disable(child);
-                       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:
-                       single_step_disable(child);
-                       if (child->exit_state != EXIT_ZOMBIE) {
-                               child->exit_code = SIGKILL;
-                               wake_up_process(child);
-                       }
-                       ret = 0;
-                       break;
-
-               /*
-                * execute single instruction.
-                */
-               case PTRACE_SINGLESTEP:
-                       ret = -EIO;
-                       if (!valid_signal(data))
-                               break;
-                       single_step_enable(child);
-                       clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-                       child->exit_code = data;
-                       /* give it a chance to run. */
-                       wake_up_process(child);
-                       ret = 0;
-                       break;
-
                case PTRACE_GETREGS:
                        ret = ptrace_getregs(child, (void __user *)data);
                        break;