The patch titled
Add prctl to change endian of a task
has been added to the -mm tree. Its filename is
add-prctl-to-change-endian-of-a-task.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: Add prctl to change endian of a task
From: Anton Blanchard <anton@xxxxxxxxx>
Add a prctl to change a tasks endian. While we only have powerpc code to
implement this so far, it seems like something that warrants a generic
interface (like setting floating point mode bits).
Signed-off-by: Anton Blanchard <anton@xxxxxxxxx>
Cc: Michael Kerrisk <mtk-manpages@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
include/linux/prctl.h | 7 +++++++
kernel/sys.c | 13 +++++++++++++
2 files changed, 20 insertions(+)
diff -puN include/linux/prctl.h~add-prctl-to-change-endian-of-a-task include/linux/prctl.h
--- devel/include/linux/prctl.h~add-prctl-to-change-endian-of-a-task 2006-06-06 23:21:40.000000000 -0700
+++ devel-akpm/include/linux/prctl.h 2006-06-06 23:21:40.000000000 -0700
@@ -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 -puN kernel/sys.c~add-prctl-to-change-endian-of-a-task kernel/sys.c
--- devel/kernel/sys.c~add-prctl-to-change-endian-of-a-task 2006-06-06 23:21:40.000000000 -0700
+++ devel-akpm/kernel/sys.c 2006-06-06 23:21:40.000000000 -0700
@@ -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
@@ -2045,6 +2051,13 @@ asmlinkage long sys_prctl(int option, un
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;
_
Patches currently in -mm which might be from anton@xxxxxxxxx are
git-powerpc.patch
fix-pciehp-driver-on-non-acpi-systems.patch
add-prctl-to-change-endian-of-a-task.patch
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