Add gmonster-{1,2} perf testcases.

These testcases are mocks of real programs.
GDB doesn't care what the programs do, they just have to look
and/or behave like the real program.
These testcases exercise gdb when debugging really large programs.
E.g., gmonster-1 has 10,000 CUs, and gmonster-2 has 1000 shared libs
(which is actually a little small, 5000 would be more accurate).

gdb/testsuite/ChangeLog:

	* gdb.perf/lib/perftest/utils.py: New file.
	* gdb.perf/gm-hello.cc: New file.
	* gdb.perf/gm-pervasive-typedef.cc: New file.
	* gdb.perf/gm-pervasive-typedef.h: New file.
	* gdb.perf/gm-std.cc: New file.
	* gdb.perf/gm-std.h: New file.
	* gdb.perf/gm-use-cerr.cc: New file.
	* gdb.perf/gm-utils.h: New file.
	* gdb.perf/gmonster-null-lookup.py: New file.
	* gdb.perf/gmonster-pervasive-typedef.py: New file.
	* gdb.perf/gmonster-print-cerr.py: New file.
	* gdb.perf/gmonster-ptype-string.py: New file.
	* gdb.perf/gmonster-runto-main.py: New file.
	* gdb.perf/gmonster-select-file.py: New file.
	* gdb.perf/gmonster1-null-lookup.exp: New file.
	* gdb.perf/gmonster1-pervasive-typedef.exp: New file.
	* gdb.perf/gmonster1-print-cerr.exp: New file.
	* gdb.perf/gmonster1-ptype-string.exp: New file.
	* gdb.perf/gmonster1-runto-main.exp: New file.
	* gdb.perf/gmonster1-select-file.exp: New file.
	* gdb.perf/gmonster1.cc: New file.
	* gdb.perf/gmonster1.exp: New file.
	* gdb.perf/gmonster2-null-lookup.exp: New file.
	* gdb.perf/gmonster2-pervasive-typedef.exp: New file.
	* gdb.perf/gmonster2-print-cerr.exp: New file.
	* gdb.perf/gmonster2-ptype-string.exp: New file.
	* gdb.perf/gmonster2-runto-main.exp: New file.
	* gdb.perf/gmonster2-select-file.exp: New file.
	* gdb.perf/gmonster2.cc: New file.
	* gdb.perf/gmonster2.exp: New file.

1 files changed, 57 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.perf/gm-std.h b/gdb/testsuite/gdb.perf/gm-std.h
new file mode 100644
index 0000000..8bda713
--- /dev/null
+++ b/gdb/testsuite/gdb.perf/gm-std.h
@@ -0,0 +1,57 @@
+/* Copyright (C) 2015 Free Software Foundation, Inc.
+
+   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 GM_STD_H
+#define GM_STD_H
+
+#include <iostream>
+
+namespace gm_std
+{
+
+// Mock std::cerr, so we don't have to worry about the vagaries of the
+// system-provided one.  E.g., gcc pr 65669.
+// This contains just enough to exercise what we want to.
+template<typename T>
+  class basic_ostream
+{
+ public:
+  std::ostream *stream;
+};
+
+template<typename T>
+  basic_ostream<T>&
+operator<< (basic_ostream<T>& out, const char* s)
+{
+  (*out.stream) << s;
+  return out;
+}
+
+typedef basic_ostream<char> ostream;
+
+// Inhibit implicit instantiations for required instantiations,
+// which are defined via explicit instantiations elsewhere.
+extern template class basic_ostream<char>;
+extern template ostream& operator<< (ostream&, const char*);
+
+extern ostream cerr;
+
+// Call this from main so we don't have to do the same tricks that
+// libstcd++ does with ios init'n.
+extern void init ();
+
+}
+
+#endif /* GM_STD_H */