1# Copyright 2016-2023 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# Test that -exec-run works as expected. Exercises various testing 17# axes: 18# 19# - MI running on main UI vs separate UI. 20# 21# - inferior tty set to main tty vs separate tty. 22# 23# - forking the child failing and sending output to the right inferior 24# terminal, vs the child not failing to start. 25 26load_lib mi-support.exp 27set MIFLAGS "-i=mi" 28 29# The purpose of this testcase is to test the -exec-run command. If we 30# cannot use it, then there is no point in running this testcase. 31if [use_gdb_stub] { 32 untested "cannot use -exec-run command" 33 return -1 34} 35 36standard_testfile mi-start.c 37 38if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { 39 untested "could not build mi-exec-run" 40 return -1 41} 42 43# The test proper. INFTTY_MODE determines whether "set inferior-tty" 44# is in effect. MI_MODE determines whether MI is run on the main UI, 45# or as a separate UI. FORCE_FAIL is true when we want -exec-run to 46# fail and cause inferior output be sent to the inferior tty. 47 48proc test {inftty_mode mi_mode force_fail} { 49 global srcdir subdir binfile srcfile 50 global gdb_spawn_id gdb_main_spawn_id mi_spawn_id inferior_spawn_id 51 global decimal 52 53 mi_gdb_exit 54 55 set start_ops {} 56 if {$inftty_mode == "separate"} { 57 lappend start_ops "separate-inferior-tty" 58 } 59 if {$mi_mode == "separate"} { 60 lappend start_ops "separate-mi-tty" 61 } 62 63 if [mi_gdb_start $start_ops] { 64 return 65 } 66 67 if {$force_fail} { 68 # Disable the shell so that its the first exec that fails, 69 # instead of the shell starting and then failing with some 70 # unspecified output. 71 mi_gdb_test "-gdb-set startup-with-shell off" ".*" 72 set bin $binfile.nox 73 } else { 74 set bin $binfile 75 } 76 77 mi_delete_breakpoints 78 mi_gdb_reinitialize_dir $srcdir/$subdir 79 mi_gdb_reinitialize_dir $srcdir/$subdir 80 mi_gdb_load ${bin} 81 82 # Useful for debugging: 83 verbose -log "Channels:" 84 verbose -log " inferior_spawn_id=$inferior_spawn_id" 85 verbose -log " gdb_spawn_id=$gdb_spawn_id" 86 verbose -log " gdb_main_spawn_id=$gdb_main_spawn_id" 87 verbose -log " mi_spawn_id=$mi_spawn_id" 88 89 if {$force_fail} { 90 set saw_perm_error 0 91 set saw_mi_error 0 92 set already_failed 0 93 set test "run failure detected" 94 send_gdb "-exec-run --start\n" 95 96 # Redirect through SPAWN_LIST global. If the 97 # inferior_spawn_id is not the same as gdb_spawn_id, e.g. when 98 # testing with gdbserver, the gdbserver can exit after 99 # emitting it's error message. 100 # 101 # If inferior_spawn_id exits then we may see the eof from that 102 # spawn-id before we see the pattern from the gdb_spawn_id, 103 # which will kick us out of the gdb_expect, and cause us to 104 # fail the test. 105 # 106 # Instead we clean SPAWN_LIST once we've seen the expected 107 # pattern from that spawn-id, and after that we no longer care 108 # when gdbserver exits. 109 global spawn_list 110 set spawn_list "$inferior_spawn_id" 111 112 gdb_expect { 113 -i spawn_list 114 -re ".*Cannot exec.*Permission denied" { 115 set saw_perm_error 1 116 set spawn_list "" 117 verbose -log "saw perm error" 118 if {!$saw_mi_error} { 119 exp_continue 120 } 121 } 122 -i "$gdb_spawn_id" 123 -re "\\^error,msg=\"(During startup program exited with code 127|Running .* on the remote target failed)" { 124 set saw_mi_error 1 125 verbose -log "saw mi error" 126 if {!$saw_perm_error} { 127 exp_continue 128 } 129 } 130 timeout { 131 set already_failed 1 132 fail "$test (timeout)" 133 } 134 -i "$gdb_main_spawn_id" 135 eof { 136 set already_failed 1 137 fail "$test (eof)" 138 } 139 } 140 141 if {$saw_perm_error && $saw_mi_error} { 142 pass $test 143 } elseif {!$already_failed} { 144 verbose -log "saw_perm_error=$saw_perm_error; saw_mi_error=$saw_mi_error" 145 fail $test 146 } 147 } else { 148 mi_run_cmd "--start" 149 mi_expect_stop "breakpoint-hit" "main" "" ".*$srcfile" "$decimal" \ 150 { "" "disp=\"del\"" } "breakpoint hit reported on mi" 151 152 if {$mi_mode == "separate"} { 153 # Check that the breakpoint hit is reported on the main 154 # UI/CLI. Note no prompt is expected. 155 switch_gdb_spawn_id $gdb_main_spawn_id 156 157 set test "breakpoint hit reported on console" 158 gdb_test_multiple "" $test { 159 -re "Temporary breakpoint .*, main \\(\\) at .*$srcfile:$decimal.*return 0;" { 160 pass $test 161 } 162 } 163 164 # Switch back to the MI UI. 165 global mi_spawn_id 166 switch_gdb_spawn_id $mi_spawn_id 167 } 168 } 169} 170 171# Create a not-executable copy of the program, in order to exercise 172# vfork->exec failing. 173gdb_remote_download host $binfile $binfile.nox 174remote_exec target "chmod \"a-x\" $binfile.nox" 175 176foreach_with_prefix inferior-tty {"main" "separate"} { 177 foreach_with_prefix mi {"main" "separate"} { 178 foreach_with_prefix force-fail {0 1} { 179 test ${inferior-tty} ${mi} ${force-fail} 180 } 181 } 182} 183 184mi_gdb_exit 185