Move gdb_ptrace.h to nat/

Now that gdbserver's configure defines PTRACE_TYPE_ARGx etc., we'll be
able to make gdbserver use gdb_ptrace.h too.  Move it to the native
target files directory.

gdb/ChangeLog:
2015-07-24  Pedro Alves  <palves@redhat.com>

	* gdb_ptrace.h: Move ...
	* nat/gdb_ptrace.h: ... here.
	* inf-ptrace.c: Adjust.

1 files changed, 149 insertions, 0 deletions

diff --git a/gdb/nat/gdb_ptrace.h b/gdb/nat/gdb_ptrace.h
new file mode 100644
index 0000000..a969681
--- /dev/null
+++ b/gdb/nat/gdb_ptrace.h
@@ -0,0 +1,149 @@
+/* Portable <sys/ptrace.h>
+
+   Copyright (C) 2004-2015 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 GDB_PTRACE_H
+#define GDB_PTRACE_H
+
+/* The <sys/ptrace.h> header was introduced with 4.4BSD, and provided
+   the PT_* symbolic constants for the ptrace(2) request numbers.  The
+   ptrace(2) prototype was added later to the same header on BSD.
+   SunOS and GNU/Linux have slightly different symbolic names for the
+   constants that start with PTRACE_*.  System V still doesn't have
+   (and probably never will have) a <sys/ptrace.h> with symbolic
+   constants; the ptrace(2) prototype can be found in <unistd.h>.
+   Fortunately all systems use the same numerical constants for the
+   common ptrace requests.  */
+
+#ifdef HAVE_PTRACE_H
+# include <ptrace.h>
+#elif defined(HAVE_SYS_PTRACE_H)
+# include <sys/ptrace.h>
+#endif
+
+/* No need to include <unistd.h> since it's already included by
+   "defs.h".  */
+
+#ifndef PT_TRACE_ME
+# define PT_TRACE_ME	0
+#endif
+
+#ifndef PT_READ_I
+# define PT_READ_I	1	/* Read word in child's I space.  */
+#endif
+
+#ifndef PT_READ_D
+# define PT_READ_D	2	/* Read word in child's D space.  */
+#endif
+
+#ifndef PT_READ_U
+# define PT_READ_U	3	/* Read word in child's U space.  */
+#endif
+
+#ifndef PT_WRITE_I
+# define PT_WRITE_I	4	/* Write word in child's I space.  */
+#endif
+
+#ifndef PT_WRITE_D
+# define PT_WRITE_D	5	/* Write word in child's D space.  */
+#endif
+
+#ifndef PT_WRITE_U
+# define PT_WRITE_U	6	/* Write word in child's U space.  */
+#endif
+
+/* HP-UX doesn't define PT_CONTINUE and PT_STEP.  Instead of those two
+   ptrace requests, it has PT_CONTIN, PT_CONTIN1, PT_SINGLE and
+   PT_SINGLE1.  PT_CONTIN1 and PT_SINGLE1 preserve pending signals,
+   which apparently is what is wanted by the HP-UX native code.  */
+
+#ifndef PT_CONTINUE
+# ifdef PT_CONTIN1
+#  define PT_CONTINUE	PT_CONTIN1
+# else
+#  define PT_CONTINUE	7	/* Continue the child.  */
+# endif
+#endif
+
+#ifndef PT_KILL
+# define PT_KILL	8	/* Kill the child process.  */
+#endif
+
+#ifndef PT_STEP
+# ifdef PT_SINGLE1
+#  define PT_STEP	PT_SINGLE1
+# else
+#  define PT_STEP	9	/* Single step the child.   */
+# endif
+#endif
+
+/* Not all systems support attaching and detaching.   */
+
+#ifndef PT_ATTACH
+# ifdef PTRACE_ATTACH
+#  define PT_ATTACH PTRACE_ATTACH
+# endif
+#endif
+
+#ifndef PT_DETACH
+# ifdef PTRACE_DETACH
+#  define PT_DETACH PTRACE_DETACH
+# endif
+#endif
+
+/* For systems such as HP/UX that do not provide PT_SYSCALL, define it
+   here as an alias for PT_CONTINUE.  This is what the PT_SYSCALL
+   request is expected to do, in addition to stopping when entering/
+   exiting a system call.  Chances are, if the system supports system
+   call tracing, enabling this feature is probably done separately;
+   and there is probably no special request that we would be required
+   to use when resuming the execution of our program.  */
+#ifndef PT_SYSCALL
+# ifdef PTRACE_SYSCALL
+#  define PT_SYSCALL PTRACE_SYSCALL
+#else
+#  define PT_SYSCALL PT_CONTINUE
+# endif
+#endif
+
+/* Some systems, in particular DEC OSF/1, Digital Unix, Compaq Tru64
+   or whatever it's called these days, don't provide a prototype for
+   ptrace.  Provide one to silence compiler warnings.  */
+
+#ifndef HAVE_DECL_PTRACE
+extern PTRACE_TYPE_RET ptrace();
+#endif
+
+/* Some systems, at least AIX and HP-UX have a ptrace with five
+   arguments.  Since we never use the fifth argument, define a ptrace
+   macro that calls the real ptrace with the last argument set to
+   zero.  */
+
+#ifdef PTRACE_TYPE_ARG5
+# ifdef HAVE_PTRACE64
+#  define ptrace(request, pid, addr, data) \
+          ptrace64 (request, pid, addr, data, 0)
+#  undef PTRACE_TYPE_ARG3
+#  define PTRACE_TYPE_ARG3 long long
+# else
+#  define ptrace(request, pid, addr, data) \
+          ptrace (request, pid, addr, data, 0)
+# endif
+#endif
+
+#endif /* gdb_ptrace.h */