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# Copyright 2016-2023 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/>.
# Test that -exec-run works as expected. Exercises various testing
# axes:
#
# - MI running on main UI vs separate UI.
#
# - inferior tty set to main tty vs separate tty.
#
# - forking the child failing and sending output to the right inferior
# terminal, vs the child not failing to start.
load_lib mi-support.exp
set MIFLAGS "-i=mi"
# The purpose of this testcase is to test the -exec-run command. If we
# cannot use it, then there is no point in running this testcase.
require !use_gdb_stub
standard_testfile mi-start.c
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested "could not build mi-exec-run"
return -1
}
# The test proper. INFTTY_MODE determines whether "set inferior-tty"
# is in effect. MI_MODE determines whether MI is run on the main UI,
# or as a separate UI. FORCE_FAIL is true when we want -exec-run to
# fail and cause inferior output be sent to the inferior tty.
proc test {inftty_mode mi_mode force_fail} {
global srcdir subdir binfile srcfile
global gdb_spawn_id gdb_main_spawn_id mi_spawn_id inferior_spawn_id
global decimal
mi_gdb_exit
set start_ops {}
if {$inftty_mode == "separate"} {
lappend start_ops "separate-inferior-tty"
}
if {$mi_mode == "separate"} {
lappend start_ops "separate-mi-tty"
}
if [mi_gdb_start $start_ops] {
return
}
if {$force_fail} {
# Disable the shell so that it's the first exec that fails,
# instead of the shell starting and then failing with some
# unspecified output.
mi_gdb_test "-gdb-set startup-with-shell off" ".*"
set bin $binfile.nox
} else {
set bin $binfile
}
mi_delete_breakpoints
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${bin}
# Useful for debugging:
verbose -log "Channels:"
verbose -log " inferior_spawn_id=$inferior_spawn_id"
verbose -log " gdb_spawn_id=$gdb_spawn_id"
verbose -log " gdb_main_spawn_id=$gdb_main_spawn_id"
verbose -log " mi_spawn_id=$mi_spawn_id"
if {$force_fail} {
set saw_perm_error 0
set saw_mi_error 0
set already_failed 0
set test "run failure detected"
send_gdb "-exec-run --start\n"
# Redirect through SPAWN_LIST global. If the
# inferior_spawn_id is not the same as gdb_spawn_id, e.g. when
# testing with gdbserver, the gdbserver can exit after
# emitting it's error message.
#
# If inferior_spawn_id exits then we may see the eof from that
# spawn-id before we see the pattern from the gdb_spawn_id,
# which will kick us out of the gdb_expect, and cause us to
# fail the test.
#
# Instead we clean SPAWN_LIST once we've seen the expected
# pattern from that spawn-id, and after that we no longer care
# when gdbserver exits.
global spawn_list
set spawn_list "$inferior_spawn_id"
gdb_expect {
-i spawn_list
-re ".*Cannot exec.*Permission denied" {
set saw_perm_error 1
set spawn_list ""
verbose -log "saw perm error"
if {!$saw_mi_error} {
exp_continue
}
}
-i "$gdb_spawn_id"
-re "\\^error,msg=\"(During startup program exited with code 127|Running .* on the remote target failed)" {
set saw_mi_error 1
verbose -log "saw mi error"
if {!$saw_perm_error} {
exp_continue
}
}
timeout {
set already_failed 1
fail "$test (timeout)"
}
-i "$gdb_main_spawn_id"
eof {
set already_failed 1
fail "$test (eof)"
}
}
if {$saw_perm_error && $saw_mi_error} {
pass $test
} elseif {!$already_failed} {
verbose -log "saw_perm_error=$saw_perm_error; saw_mi_error=$saw_mi_error"
fail $test
}
} else {
mi_run_cmd "--start"
mi_expect_stop "breakpoint-hit" "main" "" ".*$srcfile" "$decimal" \
{ "" "disp=\"del\"" } "breakpoint hit reported on mi"
if {$mi_mode == "separate"} {
# Check that the breakpoint hit is reported on the main
# UI/CLI. Note no prompt is expected.
switch_gdb_spawn_id $gdb_main_spawn_id
set test "breakpoint hit reported on console"
gdb_test_multiple "" $test {
-re "Temporary breakpoint .*, main \\(\\) at .*$srcfile:$decimal.*return 0;" {
pass $test
}
}
# Switch back to the MI UI.
global mi_spawn_id
switch_gdb_spawn_id $mi_spawn_id
}
}
}
# Create a not-executable copy of the program, in order to exercise
# vfork->exec failing.
gdb_remote_download host $binfile $binfile.nox
remote_exec target "chmod \"a-x\" $binfile.nox"
foreach_with_prefix inferior-tty {"main" "separate"} {
foreach_with_prefix mi {"main" "separate"} {
foreach_with_prefix force-fail {0 1} {
test ${inferior-tty} ${mi} ${force-fail}
}
}
}
mi_gdb_exit
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