1# Copyright 2014-2020 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 checks that inserting a dprintf and detaching does not crash 17# the program. 18# 19# Related bug: https://sourceware.org/bugzilla/show_bug.cgi?id=17012 20 21load_lib gdbserver-support.exp 22 23# The test relies on "detach/attach". 24if { [use_gdb_stub] } then { 25 return 0 26} 27 28standard_testfile 29set escapedbinfile [string_to_regexp ${binfile}] 30 31if [prepare_for_testing "failed to prepare for dprintf-detach" \ 32 ${testfile} ${srcfile} {debug}] { 33 return -1 34} 35 36proc dprintf_detach_test { breakpoint_always_inserted dprintf_style disconnected_dprintf } { 37 set test_prefix "bai=${breakpoint_always_inserted} ds=${dprintf_style} dd=${disconnected_dprintf}" 38 global binfile decimal gdb_prompt escapedbinfile 39 40 with_test_prefix "$test_prefix" { 41 # Start with a clean gdb 42 clean_restart ${binfile} 43 44 gdb_test_no_output "set breakpoint always-inserted ${breakpoint_always_inserted}" 45 gdb_test_no_output "set dprintf-style ${dprintf_style}" 46 gdb_test_no_output "set disconnected-dprintf ${disconnected_dprintf}" 47 48 if ![runto_main] { 49 fail "can't run to main" 50 return -1 51 } 52 53 # Get PID of test program. 54 set inferior_pid -1 55 set test "get inferior process ID" 56 gdb_test_multiple "call (int) getpid ()" $test { 57 -re ".* = ($decimal).*$gdb_prompt $" { 58 set inferior_pid $expect_out(1,string) 59 pass $test 60 } 61 } 62 63 if {$inferior_pid == -1} { 64 return 65 } 66 67 # Add a dprintf and detach. 68 gdb_test "dprintf function, \"hello\"" "Dprintf .*" "dprintf insertion" 69 gdb_test "detach" "Detaching from program: .*$escapedbinfile, .*" "detach program" 70 71 gdb_exit 72 73 # Check that the process still exists by attaching a new gdb to it. 74 clean_restart ${binfile} 75 set test "re-attach to inferior" 76 set is_gdbserver [target_is_gdbserver] 77 78 if { $is_gdbserver == 1 } { 79 setup_kfail "*-*-*" "server/17302" 80 } else { 81 # Give some time for the ex-inferior to run and hopefully not crash. 82 sleep 1 83 } 84 85 gdb_test "attach $inferior_pid" "Attaching to program: $escapedbinfile, process $inferior_pid.*Reading symbols from.*" "$test" 86 } 87} 88 89foreach breakpoint_always_inserted { "on" "off" } { 90 foreach dprintf_style { "gdb" "call" "agent" } { 91 foreach disconnected_dprintf { "on" "off" } { 92 dprintf_detach_test $breakpoint_always_inserted $dprintf_style $disconnected_dprintf 93 } 94 } 95} 96