1 files changed, 122 insertions, 0 deletions

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
new file mode 100644
index 000000000000..a373fc254df2
--- /dev/null
+++ b/include/linux/ptrace.h
@@ -0,0 +1,122 @@
+#ifndef _LINUX_PTRACE_H
+#define _LINUX_PTRACE_H
+/* ptrace.h */
+/* structs and defines to help the user use the ptrace system call. */
+
+/* has the defines to get at the registers. */
+
+#define PTRACE_TRACEME             0
+#define PTRACE_PEEKTEXT            1
+#define PTRACE_PEEKDATA            2
+#define PTRACE_PEEKUSR             3
+#define PTRACE_POKETEXT            4
+#define PTRACE_POKEDATA            5
+#define PTRACE_POKEUSR             6
+#define PTRACE_CONT                7
+#define PTRACE_KILL                8
+#define PTRACE_SINGLESTEP          9
+
+#define PTRACE_ATTACH           0x10
+#define PTRACE_DETACH           0x11
+
+#define PTRACE_SYSCALL            24
+
+/* 0x4200-0x4300 are reserved for architecture-independent additions.  */
+#define PTRACE_SETOPTIONS       0x4200
+#define PTRACE_GETEVENTMSG      0x4201
+#define PTRACE_GETSIGINFO       0x4202
+#define PTRACE_SETSIGINFO       0x4203
+
+/* options set using PTRACE_SETOPTIONS */
+#define PTRACE_O_TRACESYSGOOD   0x00000001
+#define PTRACE_O_TRACEFORK      0x00000002
+#define PTRACE_O_TRACEVFORK     0x00000004
+#define PTRACE_O_TRACECLONE     0x00000008
+#define PTRACE_O_TRACEEXEC      0x00000010
+#define PTRACE_O_TRACEVFORKDONE 0x00000020
+#define PTRACE_O_TRACEEXIT      0x00000040
+
+#define PTRACE_O_MASK           0x0000007f
+
+/* Wait extended result codes for the above trace options.  */
+#define PTRACE_EVENT_FORK       1
+#define PTRACE_EVENT_VFORK      2
+#define PTRACE_EVENT_CLONE      3
+#define PTRACE_EVENT_EXEC       4
+#define PTRACE_EVENT_VFORK_DONE 5
+#define PTRACE_EVENT_EXIT       6
+
+#include <asm/ptrace.h>
+
+#ifdef __KERNEL__
+/*
+ * Ptrace flags
+ */
+
+#define PT_PTRACED      0x00000001
+#define PT_DTRACE       0x00000002      /* delayed trace (used on m68k, i386) */
+#define PT_TRACESYSGOOD 0x00000004
+#define PT_PTRACE_CAP   0x00000008      /* ptracer can follow suid-exec */
+#define PT_TRACE_FORK   0x00000010
+#define PT_TRACE_VFORK  0x00000020
+#define PT_TRACE_CLONE  0x00000040
+#define PT_TRACE_EXEC   0x00000080
+#define PT_TRACE_VFORK_DONE     0x00000100
+#define PT_TRACE_EXIT   0x00000200
+#define PT_ATTACHED     0x00000400      /* parent != real_parent */
+
+#define PT_TRACE_MASK   0x000003f4
+
+/* single stepping state bits (used on ARM and PA-RISC) */
+#define PT_SINGLESTEP_BIT       31
+#define PT_SINGLESTEP           (1<<PT_SINGLESTEP_BIT)
+#define PT_BLOCKSTEP_BIT        30
+#define PT_BLOCKSTEP            (1<<PT_BLOCKSTEP_BIT)
+
+#include <linux/compiler.h>             /* For unlikely.  */
+#include <linux/sched.h>                /* For struct task_struct.  */
+
+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);
+extern int ptrace_detach(struct task_struct *, unsigned int);
+extern void ptrace_disable(struct task_struct *);
+extern int ptrace_check_attach(struct task_struct *task, int kill);
+extern int ptrace_request(struct task_struct *child, long request, long addr, long data);
+extern void ptrace_notify(int exit_code);
+extern void __ptrace_link(struct task_struct *child,
+                          struct task_struct *new_parent);
+extern void __ptrace_unlink(struct task_struct *child);
+extern void ptrace_untrace(struct task_struct *child);
+
+static inline void ptrace_link(struct task_struct *child,
+                               struct task_struct *new_parent)
+{
+        if (unlikely(child->ptrace))
+                __ptrace_link(child, new_parent);
+}
+static inline void ptrace_unlink(struct task_struct *child)
+{
+        if (unlikely(child->ptrace))
+                __ptrace_unlink(child);
+}
+
+
+#ifndef force_successful_syscall_return
+/*
+ * System call handlers that, upon successful completion, need to return a
+ * negative value should call force_successful_syscall_return() right before
+ * returning.  On architectures where the syscall convention provides for a
+ * separate error flag (e.g., alpha, ia64, ppc{,64}, sparc{,64}, possibly
+ * others), this macro can be used to ensure that the error flag will not get
+ * set.  On architectures which do not support a separate error flag, the macro
+ * is a no-op and the spurious error condition needs to be filtered out by some
+ * other means (e.g., in user-level, by passing an extra argument to the
+ * syscall handler, or something along those lines).
+ */
+#define force_successful_syscall_return() do { } while (0)
+#endif
+
+#endif
+
+#endif