270 lines
6.5 KiB
Plaintext
270 lines
6.5 KiB
Plaintext
# Test Framework Driver for GDB driving a ROM monitor (via monitor.c).
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# Copyright 1995-2020 Free Software Foundation, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# gdb_target_cmd
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# Send gdb the "target" command
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#
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proc gdb_target_cmd { targetname serialport } {
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global gdb_prompt
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for {set i 1} {$i <= 3} {incr i} {
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send_gdb "target $targetname $serialport\n"
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gdb_expect 60 {
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-re "A program is being debugged already.*ill it.*y or n. $" {
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send_gdb "y\n"
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exp_continue
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}
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-re "Couldn't establish connection to remote.*$gdb_prompt" {
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verbose "Connection failed"
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}
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-re "Remote MIPS debugging.*$gdb_prompt" {
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verbose "Set target to $targetname"
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return 0
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}
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-re "Remote debugging using .*$serialport.*$gdb_prompt" {
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verbose "Set target to $targetname"
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return 0
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}
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-re "Remote target $targetname connected to.*$gdb_prompt" {
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verbose "Set target to $targetname"
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return 0
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}
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-re "Connected to.*$gdb_prompt" {
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verbose "Set target to $targetname"
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return 0
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}
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-re "Ending remote.*$gdb_prompt" { }
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-re "Connection refused.*$gdb_prompt" {
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verbose "Connection refused by remote target. Pausing, and trying again."
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sleep 30
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continue
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}
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-re "Timeout reading from remote system.*$gdb_prompt" {
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verbose "Got timeout error from gdb."
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}
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timeout {
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send_gdb ""
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break
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}
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}
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}
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return 1
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}
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#
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# gdb_target_monitor
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# Set gdb to target the monitor
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#
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proc gdb_target_monitor { exec_file } {
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global gdb_prompt
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global exit_status
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global timeout
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if [target_info exists gdb_protocol] {
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set targetname "[target_info gdb_protocol]"
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} else {
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perror "No protocol specified for [target_info name]."
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return -1
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}
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if [target_info exists baud] {
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gdb_test "set serial baud [target_info baud]" "" ""
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}
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if [target_info exists binarydownload] {
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gdb_test "set remotebinarydownload [target_info binarydownload]" "" ""
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}
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if { [ target_info exists disable_x_packet ] } {
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gdb_test "set remote X-packet disable" ""
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}
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if { [ target_info exists disable_z_packet ] } {
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gdb_test "set remote Z-packet disable" ""
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}
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if [target_info exists gdb_serial] {
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set serialport "[target_info gdb_serial]"
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} elseif [target_info exists netport] {
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set serialport "[target_info netport]"
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} else {
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set serialport "[target_info serial]"
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}
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for {set j 1} {$j <= 2} {incr j} {
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if [gdb_file_cmd $exec_file] { return -1 }
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if ![gdb_target_cmd $targetname $serialport] { return 0 }
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gdb_target_exec
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if { $j == 1 && ![reboot_target] } {
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break
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}
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}
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perror "Couldn't set target for $targetname, port is $serialport."
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return -1
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}
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proc gdb_target_exec { } {
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gdb_test "target exec" "No executable file now." "" ".*Kill it.*y or n.*" "y"
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}
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#
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# gdb_load -- load a file into the debugger.
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# return a -1 if anything goes wrong.
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#
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proc gdb_load { arg } {
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global verbose
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global loadpath
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global loadfile
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global GDB
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global gdb_prompt
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global timeout
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global last_gdb_file
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if { $arg == "" } {
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if [info exists last_gdb_file] {
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set arg $last_gdb_file
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} else {
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send_gdb "info files\n"
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gdb_expect 30 {
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-re "Symbols from \"(\[^\"\]+)\"" {
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set arg $expect_out(1,string)
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exp_continue
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}
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-re "Local exec file:\[\r\n\]+\[ \t\]*`(\[^'\]+)'," {
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set arg $expect_out(1,string)
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exp_continue
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}
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-re "$gdb_prompt $" { }
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}
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}
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}
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set last_gdb_file $arg
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for { set j 1 } { $j <= 2 } {incr j } {
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if [target_info exists gdb,use_standard_load] {
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gdb_target_exec
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if ![target_info exists gdb,no_push_conn] {
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remote_push_conn host
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}
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set state [remote_ld target $arg]
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if ![target_info exists gdb,no_push_conn] {
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remote_close target
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remote_pop_conn host
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}
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if { $state == "pass" } {
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if [gdb_target_monitor $arg] { return -1 }
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gdb_test "list main" ".*" ""
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verbose "Loaded $arg into $GDB\n"
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return 0
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}
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} else {
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if [gdb_target_monitor $arg] { return -1 }
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if [is_remote host] {
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# FIXME: Multiple downloads. bleah.
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set farg [remote_download host $arg]
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} else {
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set farg $arg
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}
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if { $arg != "" && [target_info exists gdb_sect_offset] } {
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set textoff [target_info gdb_sect_offset]
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send_gdb "sect .text $textoff\n"
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gdb_expect 30 {
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-re "(0x\[0-9a-z]+) - 0x\[0-9a-z\]+ is \\.data" {
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set dataoff $expect_out(1,string)
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exp_continue
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}
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-re "(0x\[0-9a-z\]+) - 0x\[0-9a-z\]+ is \\.bss" {
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set bssoff $expect_out(1,string)
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exp_continue
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}
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-re "$gdb_prompt" { }
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}
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set dataoff [format 0x%x [expr $dataoff + $textoff]]
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set bssoff [format 0x%x [expr $bssoff + $textoff]]
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send_gdb "sect .data $dataoff\n"
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gdb_expect 30 {
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-re "$gdb_prompt" { }
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}
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send_gdb "sect .bss $bssoff\n"
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gdb_expect 30 {
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-re "$gdb_prompt" { }
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}
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}
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verbose "Loading $farg"
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if [target_info exists gdb_load_offset] {
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set command "load $farg [target_info gdb_load_offset]\n"
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} else {
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set command "load $farg\n"
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}
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if [target_info exists gdb_load_timeout] {
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set loadtimeout [target_info gdb_load_timeout]
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} else {
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set loadtimeout 1600
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}
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if [is_remote target] {
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set oldremotetimeout [get_remotetimeout]
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set_remotetimeout $loadtimeout
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}
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set load_ok 0
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send_gdb $command
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gdb_expect $loadtimeout {
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-re "\[Ff\]ailed.*$gdb_prompt $" {
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verbose "load failed"
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}
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-re "Timeout reading from remote.*$gdb_prompt" {
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}
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-re "$gdb_prompt $" {
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verbose "Loaded $farg into $GDB\n"
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set load_ok 1
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}
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timeout {
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if { $verbose > 1 } {
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perror "Timed out trying to load $farg."
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}
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}
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}
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if [is_remote target] {
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set_remotetimeout $oldremotetimeout
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}
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if { $load_ok == 1 } {
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return 0
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}
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}
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# Make sure we don't have an open connection to the target.
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gdb_target_exec
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if { $j == 1 } {
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if { ![reboot_target] } {
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break
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}
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}
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}
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perror "Couldn't load file into GDB."
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return -1
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}
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