Merge tag 'arm-soc-imx-move' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...

[firefly-linux-kernel-4.4.55.git] / include / linux / ptrace.h

diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 800f113bea66382fd16dc28c85eeae34e44761b0..c2f1f6a5fcb8a67f52c90c8397c7384534d3010a 100644 (file)
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -112,6 +112,7 @@
 
 #include <linux/compiler.h>            /* For unlikely.  */
 #include <linux/sched.h>               /* For struct task_struct.  */
+#include <linux/err.h>                 /* for IS_ERR_VALUE */
 
 
 extern long arch_ptrace(struct task_struct *child, long request,
@@ -127,8 +128,9 @@ extern void __ptrace_link(struct task_struct *child,
                          struct task_struct *new_parent);
 extern void __ptrace_unlink(struct task_struct *child);
 extern void exit_ptrace(struct task_struct *tracer);
-#define PTRACE_MODE_READ   1
-#define PTRACE_MODE_ATTACH 2
+#define PTRACE_MODE_READ       0x01
+#define PTRACE_MODE_ATTACH     0x02
+#define PTRACE_MODE_NOAUDIT    0x04
 /* Returns 0 on success, -errno on denial. */
 extern int __ptrace_may_access(struct task_struct *task, unsigned int mode);
 /* Returns true on success, false on denial. */
@@ -265,6 +267,15 @@ static inline void ptrace_release_task(struct task_struct *task)
 #define force_successful_syscall_return() do { } while (0)
 #endif
 
+#ifndef is_syscall_success
+/*
+ * On most systems we can tell if a syscall is a success based on if the retval
+ * is an error value.  On some systems like ia64 and powerpc they have different
+ * indicators of success/failure and must define their own.
+ */
+#define is_syscall_success(regs) (!IS_ERR_VALUE((unsigned long)(regs_return_value(regs))))
+#endif
+
 /*
  * <asm/ptrace.h> should define the following things inside #ifdef __KERNEL__.
  *