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, 116 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.perf/gmonster1.exp b/gdb/testsuite/gdb.perf/gmonster1.exp
new file mode 100644
index 0000000..b3111d2
--- /dev/null
+++ b/gdb/testsuite/gdb.perf/gmonster1.exp
@@ -0,0 +1,116 @@
+# 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/>.
+
+# Perftest description file for building the "gmonster1" benchmark.
+# Where does the name come from?  The benchmark is derived from one of the
+# monster programs at Google.
+#
+# Perftest descriptions are loaded thrice:
+# 1) To generate the build .exp files
+#    GDB_PERFTEST_MODE=gen-build-exps
+#    This step allows for parallel builds of the majority of pieces of the
+#    test binary and shlibs.
+# 2) To compile the "pieces" of the binary and shlibs.
+#    "Pieces" are the bulk of the machine-generated sources of the test.
+#    This step is driven by lib/build-piece.exp.
+#    GDB_PERFTEST_MODE=build-pieces
+# 3) To perform the final link of the binary and shlibs.
+#    GDB_PERFTEST_MODE=compile
+#
+# Example usage:
+# bash$ make -j5 build-perf RUNTESTFLAGS="gmonster1.exp gmonster2.exp"
+# bash$ make check-perf RUNTESTFLAGS="gdb.perf/gm*-*.exp GDB=/path/to/gdb"
+
+load_lib perftest.exp
+load_lib gen-perf-test.exp
+
+if [skip_perf_tests] {
+    return 0
+}
+
+if ![info exists MONSTER] {
+    set MONSTER "n"
+}
+
+proc make_testcase_config { } {
+    global MONSTER
+
+    set program_name "gmonster1"
+    array set testcase [GenPerfTest::init_testcase $program_name]
+
+    set testcase(language) c++
+
+    # *_{sources,headers} need to be embedded in an outer list
+    # because remember each element of the outer list is for each run, and
+    # here we want to use the same value for all runs.
+    set testcase(binary_extra_sources) { { gmonster1.cc gm-hello.cc gm-use-cerr.cc gm-pervasive-typedef.cc } }
+    set testcase(binary_extra_headers) { { <stdint.h> gm-utils.h gm-std.h gm-pervasive-typedef.h } }
+    set testcase(tail_shlib_sources) { { gm-std.cc } }
+    set testcase(tail_shlib_headers) { { gm-std.h } }
+
+    if { $MONSTER == "y" } {
+	set testcase(run_names) { 10-cus 100-cus 1000-cus 10000-cus }
+	set testcase(nr_compunits) { 10 100 1000 10000 }
+    } else {
+	set testcase(run_names) { 1-cu 10-cus 100-cus }
+	set testcase(nr_compunits) { 1 10 100 }
+    }
+    set testcase(nr_gen_shlibs) { 0 }
+
+    set testcase(nr_extern_globals) 10
+    set testcase(nr_static_globals) 10
+    set testcase(nr_extern_functions) 10
+    set testcase(nr_static_functions) 10
+
+    # class_specs needs to be embedded in an outer list because remember
+    # each element of the outer list is for each run, and here we want to use
+    # the same value for all runs.
+    set testcase(class_specs) { {
+	{
+	    count 1 name { class }
+	    nr_members 10 nr_static_members 10
+	    nr_methods 10 nr_static_methods 10
+	    nr_inline_methods 10 nr_static_inline_methods 10
+	}
+	{
+	    count 1 name { ns0 class }
+	    nr_members 10 nr_static_members 10
+	    nr_methods 10 nr_static_methods 10
+	    nr_inline_methods 10 nr_static_inline_methods 10
+	}
+	{
+	    count 1 name { ns0 anonymous aclass }
+	    nr_members 10 nr_static_members 10
+	    nr_methods 10 nr_static_methods 10
+	    nr_inline_methods 10 nr_static_inline_methods 10
+	}
+	{
+	    count 1 name { ns0 ns1 class }
+	    nr_members 10 nr_static_members 10
+	    nr_methods 10 nr_static_methods 10
+	    nr_inline_methods 10 nr_static_inline_methods 10
+	}
+	{
+	    count 1 name { ns0 anonymous ns1 aclass }
+	    nr_members 10 nr_static_members 10
+	    nr_methods 10 nr_static_methods 10
+	    nr_inline_methods 10 nr_static_inline_methods 10
+	}
+    } }
+
+    return [array get testcase]
+}
+
+GenPerfTest::standard_compile_driver gmonster1.exp make_testcase_config