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# Copyright 2009-2020 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/>.
# Generic subroutines for handling valgrind vgdb server.
#
# Start a vgdb server, and connect gdb to it. Return 0 on success, and -1 on
# error.
#
proc vgdb_start { } {
global binfile use_gdb_stub board testfile
global valgrind_spawn_id gdb_spawn_id
set test "spawn valgrind"
set cmd "valgrind --vgdb-error=0 $binfile"
set res [remote_spawn host $cmd]
if { $res < 0 || $res == "" } {
verbose -log "Spawning $cmd failed."
unsupported $test
return -1
}
pass $test
# Declare GDB now as running.
set gdb_spawn_id $res
# GDB started by vgdb stops already after the startup is executed, like with
# non-extended gdbserver. It is also not correct to run/attach the inferior.
set use_gdb_stub 1
set test "valgrind started"
# The trailing '.' differs for different memcheck versions.
gdb_test_multiple "" $test {
-re "Memcheck, a memory error detector\\.?\r\n" {
pass $test
}
-re "valgrind: failed to start tool 'memcheck' for platform '.*': No such file or directory" {
unsupported $test
return -1
}
-re "valgrind: wrong ELF executable class" {
unsupported $test
return -1
}
-re "command not found" {
# The spawn succeeded, but then valgrind was not found - e.g. if
# we spawned SSH to a remote system.
unsupported $test
return -1
}
-re "valgrind: Bad option.*--vgdb-error=0" {
# valgrind is not >= 3.7.0.
unsupported $test
return -1
}
}
set test "vgdb prompt"
gdb_test_multiple "" $test {
-re " (target remote | \[^\r\n\]*/vgdb \[^\r\n\]*)\r\n" {
set vgdbcmd $expect_out(1,string)
pass $test
}
}
# Do not kill valgrind.
set valgrind_spawn_id [board_info host fileid]
unset gdb_spawn_id
set board [host_info name]
unset_board_info fileid
clean_restart $testfile
# Make sure we're disconnected, in case we're testing with the
# native-extended-gdbserver board, where gdb_start/gdb_load spawn
# gdbserver and connect to it.
gdb_test "disconnect" ".*"
gdb_test "$vgdbcmd" " in \\.?_start .*" "target remote for vgdb"
gdb_test "monitor v.set gdb_output" "valgrind output will go to gdb.*"
return 0
}
#
# Stop vgdb server.
#
proc vgdb_stop { } {
global valgrind_spawn_id
# Only if valgrind got stuck.
kill_wait_spawned_process $valgrind_spawn_id
}
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