+++ /dev/null
-# Copyright 1996, 1997 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 2 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, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
-# This file was written by Michael Snyder <msnyder@cygnus.com>.
-
-# GDB support routines for a board using the sparclet remote debugging
-# protocol.
-
-load_lib remote.exp
-load_lib gdb.exp
-
-#
-# Sparclet remote run command.
-#
-
-proc gdb_start { } {
- global gdb_prompt
-
- if ![file exists loader] {
- global libdir
- set loader loader;
-
- if [target_info exists gdb_stub_offset] {
- set result [target_compile "${libdir}/stub-loader.c" $loader executable "libs=-Wl,-Ttext,[target_info gdb_stub_offset]"];
- } else {
- set result [target_compile "${libdir}/stub-loader.c" $loader executable "ldscript=[target_info gdb_stub_ldscript]"];
- }
- }
-
- verbose -log "$gdb_prompt is gdb prompt"
-
- set result 0;
- for { set y 0; } { $y < 4 } { incr y } {
- if { [default_gdb_start] != 0 } {
- return -1;
- }
-
- if [target_info exists baud] {
- send_gdb "set remotebaud [target_info baud]\n"
- gdb_expect {
- -re "$gdb_prompt" { }
- default {
- perror "Error setting baud rate."
- return -1;
- }
- }
- }
-
- for {set x 1;} { $x < 4 } {incr x} {
- set result [gdb_sparclet_startup $result];
- if { $result > 0 } {
- return 1;
- }
- # mmmmm, magic numbers.
- if { $result == -42 || $result == -43 } {
- break;
- } else {
- reboot_target;
- }
- }
- if { $x == 4 } {
- return -1;
- }
- gdb_exit;
- sleep 5;
- }
- return -1;
-}
-
-proc gdb_sparclet_startup { arg } {
- global gdb_prompt
- global GDB
- global verbose
-
- set is_running_stub 0;
-
- if [target_info exists serial] {
- set serial [target_info serial];
- } else {
- set serial [target_info netport];
- }
- set protocol [target_info gdb_protocol];
- set check_stub 1;
- if { $arg != -42 } {
- send_gdb "target $protocol $serial\n";
- # 10 seconds may be a bit short.
- gdb_expect 10 {
- -re "already.*y or n." {
- gdb_send "y\n";
- exp_continue;
- }
- -re "Remote target.*connected to.*$gdb_prompt" { set check_stub 0; }
- -re "$gdb_prompt" { }
- timeout { }
- }
- if { $check_stub } {
- verbose "timed out, checking if stub is already running"
- send_gdb "\003";
- sleep 1;
- send_gdb "\003";
- gdb_expect 10 {
- -re "$gdb_prompt" { }
- default {
- remote_close host;
- return -42;
- }
- }
- }
- }
- if [target_info exists gdb_serial] {
- set gdb_serial [target_info gdb_serial];
- } else {
- set gdb_serial $serial;
- }
- if { $check_stub } {
- send_gdb "target remote $gdb_serial\n";
- gdb_expect 15 {
- -re "Remote debugging.*$gdb_prompt" {
- verbose "stub is already running"
- set is_running_stub 1;
- }
- default {
- warning "board isn't responding";
- remote_close host;
- remote_reboot target;
- return -43;
- }
- }
- }
-
- if { $is_running_stub == 0 } {
- global srcdir
-
- if [is_remote host] {
- set loader [remote_download host "loader"];
- } else {
- set loader "loader";
- }
- send_gdb "file $loader\n";
- gdb_expect {
- -re "A program is being debug.*Kill it.*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "Load new symbol table.*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "Reading symbols from.*done..*$gdb_prompt $" {}
- -re "$gdb_prompt $" { perror "GDB couldn't find loader" }
- timeout {
- perror "(timeout) read symbol file" ;
- return -1
- }
- }
-
- send_gdb "target $protocol $serial\n";
- gdb_expect {
- -re "Remote target.*connected to.*$gdb_prompt" { }
- default {
- perror "Error reconnecting to board.";
- return -1;
- }
- }
-
- send_gdb "load $loader [target_info gdb_stub_offset]\n"
- verbose "Loading $loader into $GDB" 2
- set no_run_command 0;
- gdb_expect 1200 {
- -re "Loading.*$gdb_prompt $" {
- verbose "Loaded $loader into $GDB" 1
- }
- -re "Transfer rate:.*Switching to remote protocol.*Remote debugging" {
- set no_run_command 1;
- }
- -re "$gdb_prompt $" {
- if $verbose>1 then {
- perror "GDB couldn't load."
- }
- }
- timeout {
- if $verbose>1 then {
- perror "Timed out trying to load $arg."
- }
- }
- }
-
- if !$no_run_command {
- send_gdb "run\n";
- gdb_expect 60 {
- -re "A program is being debug.*Kill it.*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "The program being debugged .*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "Starting program:.*loader.*$" {
- verbose "Starting loader succeeded"
- }
- timeout {
- perror "(timeout) starting the loader" ;
- return -1
- }
- default {
- perror "error starting the loader";
- }
- }
- }
- sleep 2;
- send_gdb "\ 3"
- sleep 1;
- send_gdb "\ 3"
- verbose "Sent ^C^C"
- gdb_expect 10 {
- -re "Give up .and stop debugging it.*$" {
- send_gdb "y\n"
- exp_continue
- }
- -re "$gdb_prompt $" {
- verbose "Running loader succeeded"
- }
- timeout {
- warning "(timeout) interrupting the loader" ;
- remote_close host;
- }
- default {
- warning "error interrupting the loader";
- }
- }
-
- gdb_exit;
- return [gdb_start];
- }
- return 1;
-}
-
-proc gdb_run_cmd { args } {
- global gdb_prompt
-
- gdb_breakpoint exit;
- send_gdb "set \$fp=0\n";
- gdb_expect {
- -re "$gdb_prompt" { }
- }
- # This is needed for the SparcLite. Whee.
- if [target_info exists gdb,start_symbol] {
- set start_comm "jump *[target_info gdb,start_symbol]\n";
- } else {
- set start_comm "jump *start\n";
- }
- send_gdb "break copyloop\n";
- gdb_expect 10 {
- -re "Breakpoint.*$gdb_prompt $" {
- set start_comm "continue\n";
- }
- -re "$gdb_prompt $" { }
- timeout { warning "break copyloop failed badly"; }
- }
- send_gdb $start_comm;
- gdb_expect 10 {
- -re "y or n. $" {
- remote_send host "y\n"
- exp_continue;
- }
- -re "Breakpoint.*in copyloop.*$gdb_prompt $" {
- remote_send host "jump relocd\n";
- exp_continue;
- }
- -re "Continuing at.*\[\r\n\]" { }
- default {
- return -1;
- }
- }
-
- return "";
-}
-
-
-#
-# 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]
-
- set protocol [target_info gdb_protocol];
-
- if [is_remote host] {
- set arg [remote_download host $arg];
- }
- send_gdb "file $arg\n"
- gdb_expect 30 {
- -re "A program is being debug.*Kill it.*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "Load new symbol table.*y or n. $" {
- send_gdb "y\n"
- exp_continue
- }
- -re "Reading symbols from.*done..*$gdb_prompt $" {}
- -re "$gdb_prompt $" { perror "GDB couldn't read file" }
- timeout {
- perror "(timeout) read symbol file" ;
- return -1
- }
- }
-
- if [target_info exists gdb_serial] {
- set gdb_serial [target_info gdb_serial];
- } else {
- if [target_info exists serial] {
- set gdb_serial [target_info serial];
- } else {
- set gdb_serial [target_info netport];
- }
- }
- send_gdb "target remote $gdb_serial\n"
- gdb_expect 30 {
- -re "Kill it?.*y or n.*" {
- send_gdb "y\n";
- exp_continue
- }
- -re "$gdb_prompt $" {
- verbose "Set remote target to $gdb_serial" 2
- }
- timeout {
- perror "Couldn't set remote target."
- return -1
- }
- }
- if [target_info exists gdb_load_offset] {
- set offset "[target_info gdb_load_offset]";
- } else {
- set offset "";
- }
- send_gdb "load $arg $offset\n"
- verbose "Loading $arg into $GDB" 2
- gdb_expect 1200 {
- -re "Loading.*$gdb_prompt $" {
- verbose "Loaded $arg into $GDB" 1
- }
- -re "$gdb_prompt $" {
- if $verbose>1 then {
- perror "GDB couldn't load."
- }
- }
- timeout {
- if $verbose>1 then {
- perror "Timed out trying to load $arg."
- }
- }
- }
- send_gdb "list main\n";
- gdb_expect 60 {
- -re "$gdb_prompt" { }
- default {
- perror "command for list main never completed";
- return -1;
- }
- }
-
- return 0
-}
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