diff --git a/include/linux/prctl.h b/include/linux/prctl.h
index bf022c43a18e..52a9be41250d 100644
--- a/include/linux/prctl.h
+++ b/include/linux/prctl.h
@@ -52,4 +52,11 @@
 #define PR_SET_NAME    15		/* Set process name */
 #define PR_GET_NAME    16		/* Get process name */
 
+/* Get/set process endian */
+#define PR_GET_ENDIAN	19
+#define PR_SET_ENDIAN	20
+# define PR_ENDIAN_BIG		0
+# define PR_ENDIAN_LITTLE	1	/* True little endian mode */
+# define PR_ENDIAN_PPC_LITTLE	2	/* "PowerPC" pseudo little endian */
+
 #endif /* _LINUX_PRCTL_H */
diff --git a/kernel/sys.c b/kernel/sys.c
index 0b6ec0e7936f..12d2d753dc3b 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -57,6 +57,12 @@
 #ifndef GET_FPEXC_CTL
 # define GET_FPEXC_CTL(a,b)	(-EINVAL)
 #endif
+#ifndef GET_ENDIAN
+# define GET_ENDIAN(a,b)	(-EINVAL)
+#endif
+#ifndef SET_ENDIAN
+# define SET_ENDIAN(a,b)	(-EINVAL)
+#endif
 
 /*
  * this is where the system-wide overflow UID and GID are defined, for
@@ -2057,6 +2063,13 @@ asmlinkage long sys_prctl(int option, unsigned long arg2, unsigned long arg3,
 				return -EFAULT;
 			return 0;
 		}
+		case PR_GET_ENDIAN:
+			error = GET_ENDIAN(current, arg2);
+			break;
+		case PR_SET_ENDIAN:
+			error = SET_ENDIAN(current, arg2);
+			break;
+
 		default:
 			error = -EINVAL;
 			break;