cris arch-v10: use generic ptrace_resume code

Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT and
PTRACE_KILL.  This also makes PTRACE_SINGLESTEP return -EIO while it
previously succeeded despite not actually causing any kind of single
stepping.

Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
it previously wasn't which is consistent with all architectures using the
modern ptrace code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 51 deletions

diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index ee505b2eb4db..e70c804e9377 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -127,57 +127,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                         ret = 0;
                         break;
 
-                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;
-                        
-                        /* TODO: make sure any pending breakpoint is killed */
-                        wake_up_process(child);
-                        ret = 0;
-                        
-                        break;
-                
-                /* Make the child exit by sending it a sigkill. */
-                case PTRACE_KILL:
-                        ret = 0;
-                        
-                        if (child->exit_state == EXIT_ZOMBIE)
-                                break;
-                        
-                        child->exit_code = SIGKILL;
-                        
-                        /* TODO: make sure any pending breakpoint is killed */
-                        wake_up_process(child);
-                        break;
-
-                /* Set the trap flag. */
-                case PTRACE_SINGLESTEP:
-                        ret = -EIO;
-                        
-                        if (!valid_signal(data))
-                                break;
-                        
-                        clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE);
-
-                        /* TODO: set some clever breakpoint mechanism... */
-
-                        child->exit_code = data;
-                        wake_up_process(child);
-                        ret = 0;
-                        break;
-
                 /* Get all GP registers from the child. */
                 case PTRACE_GETREGS: {
                         int i;