1# Copyright (C) 2013-2023 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16# This test case is to test the performance of GDB doing stack 17# backtrace. 18# There is one parameter in this test: 19# - BACKTRACE_DEPTH is the number of innermost frames that command 20# 'bt' prints. 21 22load_lib perftest.exp 23 24if [skip_perf_tests] { 25 return 0 26} 27 28standard_testfile .c 29set executable $testfile 30set expfile $testfile.exp 31 32# make check-perf RUNTESTFLAGS='backtrace.exp BACKTRACE_DEPTH=1024' 33if ![info exists BACKTRACE_DEPTH] { 34 set BACKTRACE_DEPTH 64 35} 36 37PerfTest::assemble { 38 global BACKTRACE_DEPTH 39 global srcdir subdir srcfile 40 41 set compile_flags {debug} 42 lappend compile_flags "additional_flags=-DBACKTRACE_DEPTH=${BACKTRACE_DEPTH}" 43 44 if { [gdb_compile "$srcdir/$subdir/$srcfile" ${binfile} executable $compile_flags] != ""} { 45 return -1 46 } 47 48 return 0 49} { 50 global binfile 51 52 clean_restart $binfile 53 54 if ![runto_main] { 55 return -1 56 } 57 58 gdb_breakpoint "fun2" 59 gdb_continue_to_breakpoint "fun2" 60 61 return 0 62} { 63 global BACKTRACE_DEPTH 64 65 gdb_test_python_run "BackTrace\($BACKTRACE_DEPTH\)" 66 67 return 0 68} 69