Merge GDB 7.5.1

gdb/common/linux-ptrace.h

 /* Copyright (C) 2011-2012 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef COMMON_LINUX_PTRACE_H
 #define COMMON_LINUX_PTRACE_H
 
+struct buffer;
+
 #include <sys/ptrace.h>
 
 #ifndef PTRACE_GETSIGINFO
 # define PTRACE_GETSIGINFO 0x4202
 # define PTRACE_SETSIGINFO 0x4203
 #endif /* PTRACE_GETSIGINF */
 
 /* If the system headers did not provide the constants, hard-code the normal
    values.  */
 #ifndef PTRACE_EVENT_FORK
@@ skipping 27 matching lines @@
 #define PTRACE_GETFDPIC_INTERP  1
 #endif
 
 /* We can't always assume that this flag is available, but all systems
    with the ptrace event handlers also have __WALL, so it's safe to use
    in some contexts.  */
 #ifndef __WALL
 #define __WALL          0x40000000 /* Wait for any child.  */
 #endif
 
+extern void linux_ptrace_attach_warnings (pid_t pid, struct buffer *buffer);
+extern void linux_ptrace_init_warnings (void);
+
 #endif /* COMMON_LINUX_PTRACE_H */