patch-2.4.10 linux/arch/sparc/kernel/ptrace.c

• Lines: 39
• Date: Tue Sep 18 17:03:51 2001
• Orig file: v2.4.9/linux/arch/sparc/kernel/ptrace.c
• Orig date: Sun Aug 12 13:27:59 2001

diff -u --recursive --new-file v2.4.9/linux/arch/sparc/kernel/ptrace.c linux/arch/sparc/kernel/ptrace.c
@@ -260,6 +260,16 @@
 };
 #endif
 
+/*
+ * Called by kernel/ptrace.c when detaching..
+ *
+ * Make sure single step bits etc are not set.
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	/* nothing to do */
+}
+
 asmlinkage void do_ptrace(struct pt_regs *regs)
 {
 	unsigned long request = regs->u_regs[UREG_I0];
@@ -576,19 +586,11 @@
 	}
 
 	case PTRACE_SUNDETACH: { /* detach a process that was attached. */
-		unsigned long flags;
-		if ((unsigned long) data > _NSIG) {
+		int err = ptrace_detach(child, data);
+		if (err) {
 			pt_error_return(regs, EIO);
 			goto out_tsk;
 		}
-		child->ptrace &= ~(PT_PTRACED|PT_TRACESYS);
-		wake_up_process(child);
-		child->exit_code = data;
-		write_lock_irqsave(&tasklist_lock, flags);
-		REMOVE_LINKS(child);
-		child->p_pptr = child->p_opptr;
-		SET_LINKS(child);
-		write_unlock_irqrestore(&tasklist_lock, flags);
 		pt_succ_return(regs, 0);
 		goto out_tsk;
 	}