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# Copyright 1993-2020 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/>.
# This file was written by Ian Lance Taylor <ian@cygnus.com>.
# GDB support routines for a board using the MIPS remote debugging
# protocol. These are actually pretty generic.
# DejaGnu currently assumes that debugging is being done over the main
# console port. It would probably be more convenient for people using
# IDT boards to permit the debugging port and the connected port to be
# different, since an IDT board has two ports. This would require
# extending some of the tests in a fashion similar to that done for
# VxWorks, because the test output would appear on the other port,
# rather than being displayed by gdb.
load_lib remote.exp
set gdb_prompt "\\(gdb\\)"
#
# gdb_load -- load a file into the GDB.
# Returns a 0 if there was an error,
# 1 if it load successfully.
#
proc gdb_load { arg } {
global verbose
global loadpath
global loadfile
global gdb_prompt
global GDB
global expect_out
set loadfile [file tail $arg]
set loadpath [file dirname $arg]
gdb_file_cmd $arg
if [target_info exists gdb_protocol] {
set protocol [target_info gdb_protocol]
} else {
set protocol "sparclite"
}
if [target_info exists serial] {
set targetname [target_info serial]
set command "target $protocol [target_info serial]\n"
} else {
if ![target_info exists netport] {
perror "Need either netport or gdb_serial entry for [target_info name]."
return -1
}
set targetname [target_info netport]
set command "target $protocol udp [target_info netport]\n"
}
set timeout 60
verbose "Timeout is now $timeout seconds" 2
set try_count 0
send_gdb $command
gdb_expect {
-re "Unknown response.*resetting the board.|remote timeout" {
incr try_count
if { $try_count > 3 } {
set try_count 0
reboot_target
sleep 5
}
sleep 1
send_gdb $command
exp_continue
}
-re "Remote target.*$gdb_prompt $" { }
-re ".*SPARClite appears to be alive.*$gdb_prompt $" {
if $verbose>1 then {
send_user "Set target to $targetname\n"
}
}
timeout {
perror "Couldn't set SLITE target."
set timeout 10
verbose "Timeout is now $timeout seconds" 2
return -1
}
}
if [target_info exists gdb_load_offset] {
set offset "[target_info gdb_load_offset]"
} else {
set offset ""
}
if { 1 } {
if [is_remote host] {
set arg [remote_download host $arg]
if { $arg == "" } {
error "download failed"
return -1
}
}
send_gdb "load $arg $offset\n"
verbose "Loading $arg into $GDB" 2
set timeout 2400
verbose "Timeout is now $timeout seconds" 2
gdb_expect {
-re "Loading.*$gdb_prompt $" {
verbose "Loaded $arg into $GDB" 1
set timeout 30
verbose "Timeout is now $timeout seconds" 2
}
-re "$gdb_prompt $" {
if $verbose>1 then {
perror "GDB couldn't load."
}
}
timeout {
if $verbose>1 then {
perror "Timed out trying to load $arg."
}
}
}
}
# Some SPARClite boards automagically do a run after the program is
# loaded.
if [target_info exists need_monitor_run] {
set timeout 10
verbose "Timeout is now $timeout seconds, doing monitor run" 2
send_gdb "monitor run\n"
sleep 2
send_gdb ""
gdb_expect {
-re ".*$gdb_prompt $" { verbose "Run command succeded" }
default {
perror "error sending monitor run command"
}
}
} else {
sleep 2
}
if [target_info exists gdb_serial] {
set serial [target_info gdb_serial]
} else {
set serial [target_info serial]
}
send_gdb "target remote $serial\n"
set timeout 60
verbose "Timeout is now $timeout seconds" 2
gdb_expect {
-re ".*Kill it?.*y or n.*" {
send_gdb "y\n"
exp_continue
}
-re ".*$gdb_prompt $" {
verbose "Set remote target to [target_info serial]" 2
}
timeout {
perror "Couldn't set remote target."
set timeout 10
verbose "Timeout is now $timeout seconds" 2
return -1
}
}
if [info exists expect_out(buffer)] then {
send_log $expect_out(buffer)
}
return 0
}
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