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# Copyright (C) 2013-2019 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
}
return 0
} {
global SOLIB_COUNT
gdb_test_no_output "python SolibLoadUnload\($SOLIB_COUNT\).run()"
return 0
}
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