Merge master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog

[powerpc.git] / include / linux / ptrace.h

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index b2b3dba..8b2749a 100644 (file)
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -20,8 +20,6 @@
 #define PTRACE_DETACH          0x11
 
 #define PTRACE_SYSCALL           24
-#define PTRACE_SYSEMU            31
-#define PTRACE_SYSEMU_SINGLESTEP  32
 
 /* 0x4200-0x4300 are reserved for architecture-independent additions.  */
 #define PTRACE_SETOPTIONS      0x4200
@@ -53,6 +51,10 @@
 #ifdef __KERNEL__
 /*
  * Ptrace flags
+ *
+ * The owner ship rules for task->ptrace which holds the ptrace
+ * flags is simple.  When a task is running it owns it's task->ptrace
+ * flags.  When the a task is stopped the ptracer owns task->ptrace.
  */
 
 #define PT_PTRACED     0x00000001
@@ -80,6 +82,8 @@
 
 
 extern long arch_ptrace(struct task_struct *child, long request, long addr, long data);
+extern struct task_struct *ptrace_get_task_struct(pid_t pid);
+extern int ptrace_traceme(void);
 extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len);
 extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len);
 extern int ptrace_attach(struct task_struct *tsk);