1# This testcase is part of GDB, the GNU debugger. 2 3# Copyright 2004-2019 Free Software Foundation, Inc. 4 5# This program is free software; you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, 11# but WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13# GNU General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18 19# This test verifies that a macro using backtrace can be applied to all threads 20# and will continue for each thread even though an error may occur in 21# backtracing one of the threads. 22 23standard_testfile 24if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } { 25 return -1 26} 27 28clean_restart ${binfile} 29 30# 31# Run to `main' where we begin our tests. 32# 33 34if ![runto_main] then { 35 fail "can't run to main" 36 return 0 37} 38 39# Break after all threads have been started. 40set break_line [gdb_get_line_number "Break here"] 41gdb_test "b $break_line" ".*" 42gdb_test "continue" 43 44gdb_test_multiple "define backthread" "defining macro" { 45 -re "Type commands for definition of \"backthread\".\r\nEnd with a line saying just \"end\".\r\n>$" { 46 gdb_test_multiple "bt\np/x 20\nend" "macro details" { 47 -re "$gdb_prompt $" { 48 pass "macro details" 49 } 50 } 51 pass "defining macro" 52 } 53} 54 55# Cause backtraces to fail by setting a limit. This allows us to 56# verify that the macro can get past the backtrace error and perform 57# subsequent commands. 58gdb_test_no_output "set backtrace limit 3" 59gdb_test "thread apply all backthread" "Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14.*Thread ..*\\\$\[0-9]+ = 0x14" 60 61# Go into the thread_function to check that a simple "thread apply" 62# does not change the selected frame. 63gdb_test "step" "thread_function.*" "step to the thread_function" 64gdb_test "up" ".*in main.*" "go up in the stack frame" 65gdb_test "thread apply all print 1" "Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1.*Thread ..*\\\$\[0-9]+ = 1" "run a simple print command on all threads" 66gdb_test "down" "#0.*thread_function.*" "go down and check selected frame" 67 68# Make sure that GDB doesn't crash when the previously selected thread 69# exits due to the command run via thread apply. Regression test for 70# PR threads/13217. 71 72proc thr_apply_detach {thread_set} { 73 with_test_prefix "thread apply $thread_set" { 74 global binfile 75 global break_line 76 77 clean_restart ${binfile} 78 79 if ![runto_main] { 80 fail "can't run to main" 81 return -1 82 } 83 84 gdb_breakpoint "$break_line" 85 gdb_continue_to_breakpoint "all threads started" 86 87 gdb_test "thread apply $thread_set detach" "Thread .*" 88 gdb_test "thread" "No thread selected" "switched to no thread selected" 89 } 90} 91 92# Test both "all" and a thread list, because those are implemented as 93# different commands in GDB. 94foreach thread_set {"all" "1.1 1.2 1.3"} { 95 thr_apply_detach $thread_set 96} 97 98# Test killing and removing inferiors from a command run via "thread 99# apply THREAD_SET". THREAD_SET can be either "1.1", or "all". GDB 100# used to mistakenly allow deleting the previously-selected inferior, 101# in some cases, leading to crashes. 102 103proc kill_and_remove_inferior {thread_set} { 104 global binfile 105 global gdb_prompt 106 107 # The test starts multiple inferiors, therefore non-extended 108 # remote is not supported. 109 if [use_gdb_stub] { 110 unsupported "using gdb stub" 111 return 112 } 113 114 set any "\[^\r\n\]*" 115 set ws "\[ \t\]\+" 116 117 clean_restart ${binfile} 118 119 with_test_prefix "start inferior 1" { 120 runto_main 121 } 122 123 # Add and start inferior number NUM. 124 proc add_and_start_inferior {num} { 125 global binfile 126 127 # Start another inferior. 128 gdb_test "add-inferior" "Added inferior $num.*" \ 129 "add empty inferior $num" 130 gdb_test "inferior $num" "Switching to inferior $num.*" \ 131 "switch to inferior $num" 132 gdb_test "file ${binfile}" ".*" "load file in inferior $num" 133 134 with_test_prefix "start inferior $num" { 135 runto_main 136 } 137 } 138 139 # Start another inferior. 140 add_and_start_inferior 2 141 142 # And yet another. 143 add_and_start_inferior 3 144 145 gdb_test "thread 2.1" "Switching to thread 2.1 .*" 146 147 # Try removing an active inferior via a "thread apply" command. 148 # Should fail/warn. 149 with_test_prefix "try remove" { 150 151 gdb_define_cmd "remove" { 152 "remove-inferiors 3" 153 } 154 155 # Inferior 3 is still alive, so can't remove it. 156 gdb_test "thread apply $thread_set remove" \ 157 "warning: Can not remove active inferior 3.*" 158 # Check that GDB restored the selected thread. 159 gdb_test "thread" "Current thread is 2.1 .*" 160 161 gdb_test "info inferiors" \ 162 [multi_line \ 163 "${ws}1${ws}process ${any}" \ 164 "\\\* 2${ws}process ${any}" \ 165 "${ws}3${ws}process ${any}" \ 166 ] 167 } 168 169 # Kill and try to remove inferior 2 while inferior 2 is selected. 170 # Removing the inferior should fail/warn. 171 with_test_prefix "try kill-and-remove" { 172 173 # The "inferior 1" command works around PR gdb/19318 ("kill 174 # inferior N" shouldn't switch to inferior N). 175 gdb_define_cmd "kill-and-remove" { 176 "kill inferiors 2" 177 "inferior 1" 178 "remove-inferiors 2" 179 } 180 181 # Note that when threads=1.1, this makes sure we're really 182 # testing failure to remove the inferior the user had selected 183 # before the "thread apply" command, instead of testing 184 # refusal to remove the currently-iterated inferior. 185 gdb_test "thread apply $thread_set kill-and-remove" \ 186 "warning: Can not remove current inferior 2.*" 187 gdb_test "thread" "No thread selected" \ 188 "switched to no thread selected" 189 190 gdb_test "info inferiors" \ 191 [multi_line \ 192 "${ws}1${ws}process ${any}" \ 193 "\\\* 2${ws}<null>${any}" \ 194 "${ws}3${ws}process ${any}" \ 195 ] 196 } 197 198 # Try removing (the now dead) inferior 2 while inferior 1 is 199 # selected. This should succeed. 200 with_test_prefix "try remove 2" { 201 202 gdb_test "thread 1.1" "Switching to thread 1.1 .*" 203 204 gdb_define_cmd "remove-again" { 205 "remove-inferiors 2" 206 } 207 208 set test "thread apply $thread_set remove-again" 209 gdb_test_multiple $test $test { 210 -re "warning: Can not remove.*$gdb_prompt $" { 211 fail $test 212 } 213 -re "$gdb_prompt $" { 214 pass $test 215 } 216 } 217 gdb_test "thread" "Current thread is 1.1 .*" 218 # Check that only inferiors 1 and 3 are around. 219 gdb_test "info inferiors" \ 220 [multi_line \ 221 "\\\* 1${ws}process ${any}" \ 222 "${ws}3${ws}process ${any}" \ 223 ] 224 } 225} 226 227# Test both "all" and a thread list, because those are implemented as 228# different commands in GDB. 229foreach_with_prefix thread_set {"all" "1.1"} { 230 kill_and_remove_inferior $thread_set 231} 232