diff options
| -rw-r--r-- | gdb/testsuite/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.perf/solib.c | 83 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.perf/solib.exp | 87 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.perf/solib.py | 73 | ||||
| -rw-r--r-- | gdb/testsuite/lib/gdb.exp | 10 |
5 files changed, 260 insertions, 0 deletions
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index 726bfca..edbfa40 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,5 +1,12 @@ 2013-11-06 Yao Qi <yao@codesourcery.com> + * lib/gdb.exp (gdb_produce_source): New procedure. + * gdb.perf/solib.c: New. + * gdb.perf/solib.exp: New. + * gdb.perf/solib.py: New. + +2013-11-06 Yao Qi <yao@codesourcery.com> + * README: Mention performance tests. 2013-11-06 Yao Qi <yao@codesourcery.com> diff --git a/gdb/testsuite/gdb.perf/solib.c b/gdb/testsuite/gdb.perf/solib.c new file mode 100644 index 0000000..5da944d --- /dev/null +++ b/gdb/testsuite/gdb.perf/solib.c @@ -0,0 +1,83 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright (C) 2013 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/>. */ + +#include <stdio.h> +#include <stdlib.h> + +#ifdef __WIN32__ +#include <windows.h> +#define dlopen(name, mode) LoadLibrary (TEXT (name)) +# define dlsym(handle, func) GetProcAddress (handle, func) +#define dlclose(handle) FreeLibrary (handle) +#else +#include <dlfcn.h> +#endif + +static void **handles; + +void +do_test_load (int number) +{ + char libname[40]; + int i; + + handles = malloc (sizeof (void *) * number); + if (handles == NULL) + { + printf ("ERROR on malloc\n"); + exit (-1); + } + + for (i = 0; i < number; i++) + { + sprintf (libname, "solib-lib%d", i); + handles[i] = dlopen (libname, RTLD_LAZY); + if (handles[i] == NULL) + { + printf ("ERROR on dlopen %s\n", libname); + exit (-1); + } + } +} + +void +do_test_unload (int number) +{ + int i; + + /* Unload shared libraries in different orders. */ +#ifndef SOLIB_DLCLOSE_REVERSED_ORDER + for (i = 0; i < number; i++) +#else + for (i = number - 1; i >= 0; i--) +#endif + dlclose (handles[i]); + + free (handles); +} + +static void +end (void) +{} + +int +main (void) +{ + end (); + + return 0; +} diff --git a/gdb/testsuite/gdb.perf/solib.exp b/gdb/testsuite/gdb.perf/solib.exp new file mode 100644 index 0000000..c1b00b0 --- /dev/null +++ b/gdb/testsuite/gdb.perf/solib.exp @@ -0,0 +1,87 @@ +# Copyright (C) 2013 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/>. + +# This test case is to test the performance of GDB when it is handling +# the shared libraries of inferior are loaded and unloaded. +# There are two parameters in this test: +# - SOLIB_COUNT is the number of shared libraries program will load +# and unload +# - SOLIB_DLCLOSE_REVERSED_ORDER controls the order of dlclose shared +# libraries. If it is set, program dlclose shared libraries in a +# reversed order of loading. + +load_lib perftest.exp + +if [skip_perf_tests] { + return 0 +} + +standard_testfile .c +set executable $testfile +set expfile $testfile.exp + +# make check-perf RUNTESTFLAGS='solib.exp SOLIB_COUNT=1024' +if ![info exists SOLIB_COUNT] { + set SOLIB_COUNT 128 +} + +PerfTest::assemble { + global SOLIB_COUNT + global srcdir subdir srcfile binfile + + for {set i 0} {$i < $SOLIB_COUNT} {incr i} { + + # Produce source files. + set libname "solib-lib$i" + set src [standard_output_file $libname.c] + set exe [standard_output_file $libname] + + gdb_produce_source $src "int shr$i (void) {return 0;}" + + # Compile. + if { [gdb_compile_shlib $src $exe {debug}] != "" } { + return -1 + } + + # Delete object files to save some space. + file delete [standard_output_file "solib-lib$i.c.o"] + } + + set compile_flags {debug shlib_load} + global SOLIB_DLCLOSE_REVERSED_ORDER + + if [info exists SOLIB_DLCLOSE_REVERSED_ORDER] { + lappend compile_flags "additional_flags=-DSOLIB_DLCLOSE_REVERSED_ORDER" + } + + if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable $compile_flags] != "" } { + return -1 + } + + return 0 +} { + global binfile + + clean_restart $binfile + + if ![runto_main] { + fail "Can't run to main" + return -1 + } +} { + global SOLIB_COUNT + + gdb_test_no_output "python SolibLoadUnload\($SOLIB_COUNT\).run()" +} diff --git a/gdb/testsuite/gdb.perf/solib.py b/gdb/testsuite/gdb.perf/solib.py new file mode 100644 index 0000000..91393b1 --- /dev/null +++ b/gdb/testsuite/gdb.perf/solib.py @@ -0,0 +1,73 @@ +# Copyright (C) 2013 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/>. + +# This test case is to test the speed of GDB when it is handling the +# shared libraries of inferior are loaded and unloaded. + +from perftest import perftest +from perftest import measure + +class SolibLoadUnload1(perftest.TestCaseWithBasicMeasurements): + def __init__(self, solib_count, measure_load): + if measure_load: + name = "solib_load" + else: + name = "solib_unload" + # We want to measure time in this test. + super (SolibLoadUnload1, self).__init__ (name) + self.solib_count = solib_count + self.measure_load = measure_load + + def warm_up(self): + do_test_load = "call do_test_load (%d)" % self.solib_count + do_test_unload = "call do_test_unload (%d)" % self.solib_count + gdb.execute(do_test_load) + gdb.execute(do_test_unload) + + def execute_test(self): + num = self.solib_count + iteration = 5; + + while num > 0 and iteration > 0: + # Do inferior calls to do_test_load and do_test_unload in pairs, + # but measure differently. + if self.measure_load: + do_test_load = "call do_test_load (%d)" % num + func = lambda: gdb.execute (do_test_load) + + self.measure.measure(func, num) + + do_test_unload = "call do_test_unload (%d)" % num + gdb.execute (do_test_unload) + + else: + do_test_load = "call do_test_load (%d)" % num + gdb.execute (do_test_load) + + do_test_unload = "call do_test_unload (%d)" % num + func = lambda: gdb.execute (do_test_unload) + + self.measure.measure(func, num) + + num = num / 2 + iteration -= 1 + +class SolibLoadUnload(object): + def __init__(self, solib_count): + self.solib_count = solib_count; + + def run(self): + SolibLoadUnload1(self.solib_count, True).run() + SolibLoadUnload1(self.solib_count, False).run() diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp index 7613761..b8b21ab 100644 --- a/gdb/testsuite/lib/gdb.exp +++ b/gdb/testsuite/lib/gdb.exp @@ -1835,6 +1835,16 @@ gdb_caching_proc is_elf_target { return 1 } +# Produce source file NAME and write SOURCES into it. + +proc gdb_produce_source { name sources } { + set index 0 + set f [open $name "w"] + + puts $f $sources + close $f +} + # Return 1 if target is ILP32. # This cannot be decided simply from looking at the target string, # as it might depend on externally passed compiler options like -m64. |