[PATCH 2/4 v6] Introduce common-types.h

[Gary Benson <gbenson@redhat.com>]

This introduces common-types.h.  This file defines various standard
types used by gdb and gdbserver.

Currently these types are conditionally defined based on GDBSERVER.
The long term goal is to remove all such tests; however, this is
difficult as currently gdb uses definitions from BFD.  In the meantime
this is still a step in the right direction.

gdb/
2014-08-11  Tom Tromey  <tromey@redhat.com>
	    Gary Benson  <gbenson@redhat.com>

	* common/common-types.h: New file.
	* Makefile.in (HFILES_NO_SRCDIR): Add common/common-types.h.
	* common/common-defs.h: Include common-types.h.
	* defs.h (gdb_byte, CORE_ADDR, CORE_ADDR_MAX, LONGEST)
	(ULONGEST): Remove.

gdb/gdbserver/
2014-08-11  Tom Tromey  <tromey@redhat.com>
	    Gary Benson  <gbenson@redhat.com>

	* server.h: Add static assertion.
	(gdb_byte, CORE_ADDR, LONGEST, ULONGEST): Remove.
---
 gdb/ChangeLog             |    9 ++++++
 gdb/Makefile.in           |    2 +-
 gdb/common/common-defs.h  |    1 +
 gdb/common/common-types.h |   61 +++++++++++++++++++++++++++++++++++++++++++++
 gdb/defs.h                |   29 ---------------------
 gdb/gdbserver/ChangeLog   |    6 ++++
 gdb/gdbserver/server.h    |   13 +--------
 7 files changed, 80 insertions(+), 41 deletions(-)
 create mode 100644 gdb/common/common-types.h

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index fa0dcd4..76ca0da 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -936,7 +936,7 @@ gdb_bfd.h sparc-ravenscar-thread.h ppc-ravenscar-thread.h nat/linux-btrace.h \
 ctf.h nat/i386-cpuid.h nat/i386-gcc-cpuid.h target/resume.h \
 target/wait.h target/waitstatus.h nat/linux-nat.h nat/linux-waitpid.h \
 common/print-utils.h common/rsp-low.h nat/i386-dregs.h x86-linux-nat.h \
-i386-linux-nat.h common/common-defs.h common/errors.h
+i386-linux-nat.h common/common-defs.h common/errors.h common/common-types.h
 
 # Header files that already have srcdir in them, or which are in objdir.
 
diff --git a/gdb/common/common-defs.h b/gdb/common/common-defs.h
index a15423c..5543e4c 100644
--- a/gdb/common/common-defs.h
+++ b/gdb/common/common-defs.h
@@ -42,5 +42,6 @@
 #include "common-utils.h"
 #include "gdb_assert.h"
 #include "errors.h"
+#include "common-types.h"
 
 #endif /* COMMON_DEFS_H */
diff --git a/gdb/common/common-types.h b/gdb/common/common-types.h
new file mode 100644
index 0000000..9fa1c24
--- /dev/null
+++ b/gdb/common/common-types.h
@@ -0,0 +1,61 @@
+/* Declarations for common types.
+
+   Copyright (C) 1986-2014 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_TYPES_H
+#define COMMON_TYPES_H
+
+#ifdef GDBSERVER
+
+/* * A byte from the program being debugged.  */
+typedef unsigned char gdb_byte;
+
+typedef unsigned long long CORE_ADDR;
+
+typedef long long LONGEST;
+typedef unsigned long long ULONGEST;
+
+#else /* GDBSERVER */
+
+#include "bfd.h"
+
+/* * A byte from the program being debugged.  */
+typedef bfd_byte gdb_byte;
+
+/* * An address in the program being debugged.  Host byte order.  */
+typedef bfd_vma CORE_ADDR;
+
+/* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
+
+#ifdef BFD64
+
+typedef BFD_HOST_64_BIT LONGEST;
+typedef BFD_HOST_U_64_BIT ULONGEST;
+
+#else /* No BFD64 */
+
+typedef long long LONGEST;
+typedef unsigned long long ULONGEST;
+
+#endif /* No BFD64 */
+#endif /* GDBSERVER */
+
+/* * The largest CORE_ADDR value.  */
+#define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
+
+#endif /* COMMON_TYPES_H */
diff --git a/gdb/defs.h b/gdb/defs.h
index b7271a7..8914512 100644
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -76,35 +76,6 @@
 
 #include "hashtab.h"
 
-/* Rather than duplicate all the logic in BFD for figuring out what
-   types to use (which can be pretty complicated), symply define them
-   in terms of the corresponding type from BFD.  */
-
-#include "bfd.h"
-
-/* * A byte from the program being debugged.  */
-typedef bfd_byte gdb_byte;
-
-/* * An address in the program being debugged.  Host byte order.  */
-typedef bfd_vma CORE_ADDR;
-
-/* * The largest CORE_ADDR value.  */
-#define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
-
-/* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
-
-#ifdef BFD64
-
-#define LONGEST BFD_HOST_64_BIT
-#define ULONGEST BFD_HOST_U_64_BIT
-
-#else /* No BFD64 */
-
-#define LONGEST long long
-#define ULONGEST unsigned long long
-
-#endif /* No BFD64 */
-
 #ifndef min
 #define min(a, b) ((a) < (b) ? (a) : (b))
 #endif
diff --git a/gdb/gdbserver/server.h b/gdb/gdbserver/server.h
index db6ddde..e6b2277 100644
--- a/gdb/gdbserver/server.h
+++ b/gdb/gdbserver/server.h
@@ -21,6 +21,8 @@
 
 #include "common-defs.h"
 
+gdb_static_assert (sizeof (CORE_ADDR) >= sizeof (void *));
+
 #ifdef __MINGW32CE__
 #include "wincecompat.h"
 #endif
@@ -63,19 +65,8 @@ int vsnprintf(char *str, size_t size, const char *format, va_list ap);
 #  define PROG "gdbserver"
 #endif
 
-/* A type used for binary buffers.  */
-typedef unsigned char gdb_byte;
-
 #include "buffer.h"
 #include "xml-utils.h"
-
-/* FIXME: This should probably be autoconf'd for.  It's an integer type at
-   least the size of a (void *).  */
-typedef unsigned long long CORE_ADDR;
-
-typedef long long LONGEST;
-typedef unsigned long long ULONGEST;
-
 #include "regcache.h"
 #include "gdb_signals.h"
 #include "target.h"
-- 
1.7.1