Move gdbsupport to the top level

This patch moves the gdbsupport directory to the top level.  This is
the next step in the ongoing project to move gdbserver to the top
level.

The bulk of this patch was created by "git mv gdb/gdbsupport gdbsupport".

This patch then adds a build system to gdbsupport and wires it into
the top level.  Then it changes gdb to use the top-level build.

gdbserver, on the other hand, is not yet changed.  It still does its
own build of gdbsupport.

ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* src-release.sh (GDB_SUPPORT_DIRS): Add gdbsupport.
	* MAINTAINERS: Add gdbsupport.
	* configure: Rebuild.
	* configure.ac (configdirs): Add gdbsupport.
	* gdbsupport: New directory, move from gdb/gdbsupport.
	* Makefile.def (host_modules, dependencies): Add gnulib.
	* Makefile.in: Rebuild.

gdb/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* nat/x86-linux-dregs.c: Include configh.h.
	* nat/linux-ptrace.c: Include configh.h.
	* nat/linux-btrace.c: Include configh.h.
	* defs.h: Include config.h, bfd.h.
	* configure.ac: Don't source common.host.
	(CONFIG_OBS, CONFIG_SRCS): Remove gdbsupport files.
	* configure: Rebuild.
	* acinclude.m4: Update path.
	* Makefile.in (SUPPORT, LIBSUPPORT, INCSUPPORT): New variables.
	(CONFIG_SRC_SUBDIR): Remove gdbsupport.
	(INTERNAL_CFLAGS_BASE): Add INCSUPPORT.
	(CLIBS): Add LIBSUPPORT.
	(CDEPS): Likewise.
	(COMMON_SFILES): Remove gdbsupport files.
	(HFILES_NO_SRCDIR): Likewise.
	(stamp-version): Update path to create-version.sh.
	(ALLDEPFILES): Remove gdbsupport files.

gdb/gdbserver/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* server.h: Include config.h.
	* gdbreplay.c: Include config.h.
	* configure: Rebuild.
	* configure.ac: Don't source common.host.
	* acinclude.m4: Update path.
	* Makefile.in (INCSUPPORT): New variable.
	(INCLUDE_CFLAGS): Add INCSUPPORT.
	(SFILES): Update paths.
	(version-generated.c): Update path to create-version.sh.
	(gdbsupport/%-ipa.o, gdbsupport/%.o): Update paths.

gdbsupport/ChangeLog
2020-01-14  Tom Tromey  <tom@tromey.com>

	* common-defs.h: Add GDBSERVER case.  Update includes.
	* acinclude.m4, aclocal.m4, config.in, configure, configure.ac,
	Makefile.am, Makefile.in, README: New files.
	* Moved from ../gdb/gdbsupport/

Change-Id: I07632e7798635c1bab389bf885971e584fb4bb78

1 files changed, 73 insertions, 0 deletions

diff --git a/gdbsupport/selftest.h b/gdbsupport/selftest.h
new file mode 100644
index 0000000..1c47fe1
--- /dev/null
+++ b/gdbsupport/selftest.h
@@ -0,0 +1,73 @@
+/* GDB self-testing.
+   Copyright (C) 2016-2020 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_SELFTEST_H
+#define COMMON_SELFTEST_H
+
+/* A test is just a function that does some checks and throws an
+   exception if something has gone wrong.  */
+
+typedef void self_test_function (void);
+
+namespace selftests
+{
+
+/* Interface for the various kinds of selftests.  */
+
+struct selftest
+{
+  virtual ~selftest () = default;
+  virtual void operator() () const = 0;
+};
+
+/* Register a new self-test.  */
+
+extern void register_test (const std::string &name, selftest *test);
+
+/* Register a new self-test.  */
+
+extern void register_test (const std::string &name,
+			   self_test_function *function);
+
+/* Run all the self tests.  This print a message describing the number
+   of test and the number of failures.
+
+   If FILTER is not NULL and not empty, only tests with names containing FILTER
+   will be ran.  */
+
+extern void run_tests (const char *filter);
+
+/* Reset GDB or GDBserver's internal state.  */
+extern void reset ();
+
+typedef void for_each_selftest_ftype (const std::string &name);
+
+/* Call FUNC for each registered selftest.  */
+
+extern void for_each_selftest (for_each_selftest_ftype func);
+}
+
+/* Check that VALUE is true, and, if not, throw an exception.  */
+
+#define SELF_CHECK(VALUE)						\
+  do {									\
+    if (!(VALUE))							\
+      error (_("self-test failed at %s:%d"), __FILE__, __LINE__);	\
+  } while (0)
+
+#endif /* COMMON_SELFTEST_H */