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>
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index ee505b2..e70c804 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -127,57 +127,6 @@
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;