From: Ulrich Drepper <drepper@gmail.com>
Date: Tue, 1 Nov 2011 13:59:32 +0000 (-0400)
Subject: New Linux syscalls process_vm_readv and process_vm_writev
X-Git-Tag: glibc-2.15~123
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=78239589cd8c6667886b94c4db146109855f417a;p=thirdparty%2Fglibc.git

New Linux syscalls process_vm_readv and process_vm_writev
---

diff --git a/ChangeLog b/ChangeLog
index 2a096f1d4c9..548fabf795e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2011-11-01  Ulrich Drepper  <drepper@gmail.com>
 
+	* sysdeps/unix/sysv/linux/bits/uio.h: Declare process_vm_readv and
+	process_vm_writev.
+	* sysdeps/unix/sysv/linux/syscalls.list: Add process_vm_readv and
+	process_vm_writev.
+	* sysdeps/unix/sysv/linux/Versions: Export process_vm_readv and
+	process_vm_writev from libc using GLIBC_2.15 version.
+
 	* nscd/connections.c: Use kernel headers instead of <netlink/netlink.h>.
 
 2011-10-31  Paul Pluzhnikov  <ppluzhnikov@google.com>
diff --git a/NEWS b/NEWS
index 8c352e9cbfd..60f8f87b752 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-GNU C Library NEWS -- history of user-visible changes.  2011-10-31
+GNU C Library NEWS -- history of user-visible changes.  2011-11-1
 Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
 See the end for copying conditions.
 
@@ -54,6 +54,8 @@ Version 2.15
 
 * Optimized strcasecmp and strncasecmp for AVX on x86-64.
   Implemented by Ulrich Drepper.
+
+* New Linux interfaces: process_vm_readv, process_vm_writev
 
 Version 2.14
 
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 3a3e8e8c2b6..7f2f1b9ffe8 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -163,6 +163,9 @@ libc {
 
     sendmmsg;
   }
+  GLIBC_2.15 {
+    process_vm_readv; process_vm_writev;
+  }
   GLIBC_PRIVATE {
     # functions used in other libraries
     __syscall_rt_sigqueueinfo;
diff --git a/sysdeps/unix/sysv/linux/bits/uio.h b/sysdeps/unix/sysv/linux/bits/uio.h
index 6a283ed7710..ea850c8b481 100644
--- a/sysdeps/unix/sysv/linux/bits/uio.h
+++ b/sysdeps/unix/sysv/linux/bits/uio.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 2006 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 2006, 2011 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -48,3 +48,26 @@ struct iovec
   };
 
 #endif
+
+#if defined _SYS_UIO_H && !defined _BITS_UIO_H_FOR_SYS_UIO_H
+#define _BITS_UIO_H_FOR_SYS_UIO_H 1
+
+__BEGIN_DECLS
+
+/* Read from another process' address space.  */
+extern ssize_t process_vm_readv (pid_t __pid, __const struct iovec *__lvec,
+				 size_t __liovcnt,
+				 __const struct iovec *__rvec,
+				 size_t __riovcnt, unsigned long int __flags)
+  __THROW;
+
+/* Write to another process' address space.  */
+extern ssize_t process_vm_writev (pid_t __pid, __const struct iovec *__lvec,
+				  size_t __liovcnt,
+				  __const struct iovec *__rvec,
+				  size_t __riovcnt, unsigned long int __flags)
+  __THROW;
+
+__END_DECLS
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
index 2bed9e99e6c..f6e6653d374 100644
--- a/sysdeps/unix/sysv/linux/syscalls.list
+++ b/sysdeps/unix/sysv/linux/syscalls.list
@@ -109,3 +109,6 @@ name_to_handle_at EXTRA	name_to_handle_at i:isppi name_to_handle_at
 open_by_handle_at EXTRA	open_by_handle_at Ci:ipi  open_by_handle_at
 
 setns		EXTRA	setns		i:ii	setns
+
+process_vm_readv EXTRA	process_vm_readv i:ipipii process_vm_readv
+process_vm_writev EXTRA	process_vm_writev i:ipipii process_vm_writev