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- # Copyright (C) 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- # Please email any bugs, comments, and/or additions to this file to:
- # DejaGnu@cygnus.com
-
- # Note: some of this was cribbed from the gdb testsuite since we need
- # to use some pretty standard gdb features (breakpoints in particular).
-
- # Load up some standard junk.
- load_lib remote.exp
-
- if ![info exists board] {
- perror "$board must be set before loading gdb-comm"
- }
-
- # The number of times we've tried to download/execute this executable.
- set try_again 0
-
- #
- # Delete all breakpoints and verify that they were deleted. If anything
- # goes wrong, return -1.
- #
- proc gdb_comm_delete_breakpoints {} {
- global gdb_prompt
-
- remote_send host "delete breakpoints\n";
- remote_expect host 10 {
- -re "Delete all breakpoints.*y or n. $" {
- remote_send host "y\n"
- exp_continue
- }
- -re ".*$gdb_prompt $" { }
- timeout { perror "Delete all breakpoints (timeout)" ; return -1}
- }
- remote_send host "info breakpoints\n"
- remote_expect host 10 {
- -re "No breakpoints or watchpoints..*$gdb_prompt $" {}
- -re ".*$gdb_prompt $" { perror "breakpoints not deleted" ; return -1}
- timeout { perror "info breakpoints (timeout)" ; return -1}
- }
- return 0;
- }
-
- #
- # Inform the debugger that we have a new exec file.
- # return a -1 if anything goes wrong, 0 on success.
- #
- proc gdb_comm_file_cmd { arg } {
- global verbose
- global loadpath
- global loadfile
- global GDB
- global gdb_prompt
- upvar timeout timeout
-
- # The "file" command loads up a new symbol file for gdb, deal with
- # the various messages it might spew out.
- if [is_remote host] {
- set arg [remote_download host $arg a.out];
- }
- remote_send host "file $arg\n"
- remote_expect host 60 {
- -re "Reading symbols from.*done.*$gdb_prompt $" {
- verbose "\t\tLoaded $arg into the $GDB"
- return 0
- }
- -re "has no symbol-table.*$gdb_prompt $" {
- perror "$arg wasn't compiled with \"-g\""
- return -1
- }
- -re "A program is being debugged already.*Kill it.*y or n. $" {
- remote_send host "y\n"
- verbose "\t\tKilling previous program being debugged"
- exp_continue
- }
- -re "Load new symbol table from \".*\".*y or n.*$" {
- remote_send host "y\n"
- remote_expect host 60 {
- -re "Reading symbols from.*done.*$gdb_prompt $" {
- verbose "\t\tLoaded $arg with new symbol table into $GDB"
- return 0
- }
- timeout {
- perror "(timeout) Couldn't load $arg, other program already loaded."
- return -1
- }
- }
- }
- -re ".*No such file or directory.*$gdb_prompt $" {
- perror "($arg) No such file or directory\n"
- return -1
- }
- -re "$gdb_prompt $" {
- perror "couldn't load $arg into $GDB."
- return -1
- }
- timeout {
- perror "couldn't load $arg into $GDB (timed out)."
- return -1
- }
- eof {
- # This is an attempt to detect a core dump, but seems not to
- # work. Perhaps we need to match .* followed by eof, in which
- # expect does not seem to have a way to do that.
- perror "couldn't load $arg into $GDB (end of file)."
- return -1
- }
- }
- return 0;
- }
-
- # Disconnect from the target and forget that we have an executable. Returns
- # -1 on failure, 0 on success.
-
- proc gdb_comm_go_idle { } {
- global gdb_prompt;
-
- if ![board_info host exists fileid] {
- return -1;
- }
-
- remote_send host "target exec\n";
- remote_expect host 10 {
- -re "Kill it.*y or n.*$" {
- remote_send host "y\n"
- exp_continue;
- }
- -re "No exec file now.*$gdb_prompt $" {
- return 0;
- }
- default {
- remote_close host;
- return -1;
- }
- }
- }
-
- # Start GDB running with target DEST.
- proc gdb_comm_start { dest } {
- global GDB
- global gdb_prompt
- global tool_root_dir
-
- # The variable gdb_prompt is a regexp which matches the gdb prompt. Set it
- # if it is not already set.
- if ![board_info $dest exists gdb_prompt] then {
- set gdb_prompt "\\(gdb\\)"
- } else {
- set gdb_prompt [board_info $dest gdb_prompt];
- }
- # Similarly for GDB. Look in the object directory for gdb if we aren't
- # provided with one.
- if ![info exists GDB] then {
- set GDB "[lookfor_file ${tool_root_dir} gdb/gdb]"
- if { $GDB == "" } {
- set GDB [transform gdb]
- }
- }
- if [board_info host exists gdb_opts] {
- set gdb_opts [board_info host gdb_opts];
- } else {
- set gdb_opts ""
- }
- # Start up gdb (no startfiles, no windows) and wait for a prompt.
- remote_spawn host "$GDB $gdb_opts -nw -nx";
- remote_expect host 60 {
- -re ".*$gdb_prompt $" { }
- }
- remote_send host "set height 0\n";
- remote_expect host 10 {
- -re ".*$gdb_prompt $" {}
- }
- remote_send host "set width 0\n";
- remote_expect host 10 {
- -re ".*$gdb_prompt $" {}
- }
- }
-
- # Add a breakpoint at function FUNCTION. We assume that GDB has already been
- # started.
- proc gdb_comm_add_breakpoint { function } {
- global gdb_prompt
-
- remote_send host "break $function\n"
- remote_expect host 60 {
- -re "Breakpoint.*$gdb_prompt $" { return "" }
- -re "Function.*not defined.*$gdb_prompt $" { return "undef" }
- -re "No symbol table.*$gdb_prompt $" { return "undef" }
- default {
- return "untested"
- }
- }
- }
-
- #
- # quit_gdb -- try to quit GDB gracefully
- #
-
- proc quit_gdb { } {
- global gdb_prompt;
-
- set spawn_id [board_info host fileid];
-
- if { $spawn_id != "" && $spawn_id > -1 } {
- if { [remote_send host "quit\n"] == "" } {
- remote_expect host 10 {
- -re ".*y or n.*$" {
- remote_send host "y\n";
- exp_continue;
- }
- -re ".*\[*\]\[*\]\[*\].*EXIT code" { }
- default { }
- }
- }
- }
- remote_close host;
- }
-
- proc gdb_comm_leave { } {
- if [is_remote host] {
- quit_gdb;
- } else {
- gdb_comm_go_idle;
- }
- }
- #
- # gdb_comm_load -- load the program and execute it
- #
- # PROG is a full pathname to the file to load, no arguments.
- # Result is "untested", "pass", "fail", etc.
- #
-
- proc gdb_comm_load { dest prog args } {
- global GDB
- global GDBFLAGS
- global gdb_prompt
- global timeout
- set argnames { "command-line arguments" "input file" "output file" }
-
- for { set x 0; } { $x < [llength $args] } { incr x } {
- if { [lindex $args $x] != "" } {
- return [list "unsupported" "no support for [lindex $argnames $x] on this target"];
- }
- }
- # Make sure the file we're supposed to load really exists.
- if ![file exists $prog] then {
- perror "$prog does not exist."
- return [list "untested" ""];
- }
-
- if { [is_remote host] || ![board_info host exists fileid] } {
- gdb_comm_start $dest;
- }
-
- # Remove all breakpoints, then tell the debugger that we have
- # new exec file.
- if { [gdb_comm_delete_breakpoints] != 0 } {
- gdb_comm_leave;
- return [gdb_comm_reload $dest $prog $args];
- }
- if { [gdb_comm_file_cmd $prog] != 0 } {
- gdb_comm_leave;
- return [gdb_comm_reload $dest $prog $args];
- }
- if [board_info $dest exists gdb_sect_offset] {
- set textoff [board_info $dest gdb_sect_offset];
- remote_send host "sect .text $textoff\n";
- remote_expect host 10 {
- -re "(0x\[0-9a-z]+) - 0x\[0-9a-z\]+ is \\.data" {
- set dataoff $expect_out(1,string);
- exp_continue;
- }
- -re "(0x\[0-9a-z\]+) - 0x\[0-9a-z\]+ is \\.bss" {
- set bssoff $expect_out(1,string);
- exp_continue;
- }
- -re "$gdb_prompt" { }
- }
- set dataoff [format 0x%x [expr $dataoff + $textoff]];
- set bssoff [format 0x%x [expr $bssoff + $textoff]];
- remote_send host "sect .data $dataoff\n";
- remote_expect host 10 {
- -re "$gdb_prompt" { }
- }
- remote_send host "sect .bss $bssoff\n";
- remote_expect host 10 {
- -re "$gdb_prompt" { }
- }
- }
-
- # Now set up breakpoints in exit, _exit, and abort. These
- # are used to determine if a c-torture test passed or failed. More
- # work would be necessary for things like the g++ testsuite which
- # use printf to indicate pass/fail status.
-
- if { [gdb_comm_add_breakpoint _exit] != "" } {
- gdb_comm_add_breakpoint exit;
- }
- gdb_comm_add_breakpoint abort;
-
- set protocol [board_info $dest gdb_protocol];
- if [board_info $dest exists gdb_serial] {
- set targetname [board_info $dest gdb_serial];
- } elseif [board_info $dest exists netport] {
- set targetname [board_info $dest netport];
- } else {
- if [board_info $dest exists serial] {
- set targetname [board_info $dest serial];
- } else {
- set targetname ""
- }
- }
- if [board_info $dest exists baud] {
- remote_send host "set remotebaud [board_info $dest baud]\n"
- remote_expect host 10 {
- -re ".*$gdb_prompt $" {}
- default {
- warning "failed setting baud rate";
- }
- }
- }
- remote_send host "target $protocol $targetname\n";
- remote_expect host 60 {
- -re "Couldn.t establish conn.*$gdb_prompt $" {
- warning "Unable to connect to $targetname with GDB."
- quit_gdb;
- return [gdb_comm_reload $dest $prog $args]
- }
- -re "Ending remote.*$gdb_prompt $" {
- warning "Unable to connect to $targetname with GDB."
- quit_gdb;
- return [gdb_comm_reload $dest $prog $args]
- }
- -re "Remote target $protocol connected to.*$gdb_prompt $" { }
- -re "Remote target $targetname connected to.*$gdb_prompt $" { }
- -re "Connected to ARM RDI target.*$gdb_prompt $" { }
- -re "Connected to the simulator.*$gdb_prompt $" { }
- -re "Remote.*using $targetname.*$gdb_prompt $" { }
- -re "$gdb_prompt $" {
- warning "Unable to connect to $targetname with GDB."
- quit_gdb;
- return [gdb_comm_reload $dest $prog $args]
- }
- -re ".*RDI_open.*should reset target.*" {
- warning "RDI Open Failed"
- quit_gdb;
- return [gdb_comm_reload $dest $prog $args]
- }
- default {
- warning "Unable to connect to $targetname with GDB."
- quit_gdb;
- return [gdb_comm_reload $dest $prog $args]
- }
- }
-
- if [target_info exists gdb_init_command] {
- remote_send host "[target_info gdb_init_command]\n";
- remote_expect host 10 {
- -re ".*$gdb_prompt $" { }
- default {
- gdb_comm_leave;
- return [list "fail" ""];
- }
- }
- }
- # Now download the executable to the target board. If communications
- # with the target are very slow the timeout might need to be increased.
- if [board_info $dest exists gdb_load_offset] {
- remote_send host "load $prog [board_info $dest gdb_load_offset]\n";
- } else {
- remote_send host "load\n"
- }
- remote_expect host 600 {
- -re "text.*data.*$gdb_prompt $" { }
- -re "data.*text.*$gdb_prompt $" { }
- -re "$gdb_prompt $" {
- warning "Unable to send program to target board."
- gdb_comm_leave;
- return [gdb_comm_reload $dest $prog $args];
- }
- default {
- warning "Unable to send program to target board."
- gdb_comm_leave;
- return [gdb_comm_reload $dest $prog $args];
- }
- }
-
- set output ""
-
- # Now start up the program and look for our magic breakpoints.
- # And a whole lot of other magic stuff too.
-
- if [board_info $dest exists gdb_run_command] {
- remote_send host "[board_info $dest gdb_run_command]\n";
- } else {
- remote_send host "run\n"
- }
- # FIXME: The value 300 below should be a parameter.
- if [board_info $dest exists testcase_timeout] {
- set testcase_timeout [board_info $dest testcase_timeout];
- } else {
- set testcase_timeout 300;
- }
- remote_expect host $testcase_timeout {
- -re "Line.*Jump anyway.*.y or n.*" {
- remote_send host "y\n";
- exp_continue;
- }
- -re "Continuing( at |\\.| with no signal\\.)\[^\r\n\]*\[\r\n\]" {
- exp_continue;
- }
- -re ".*Start it from the beginning?.*y or n.*" {
- remote_send host "n\n";
- remote_expect host 10 {
- -re ".*$gdb_prompt $" {
- remote_send host "signal 0\n";
- remote_expect host 10 {
- -re "signal 0\[\r\n\]+" { exp_continue; }
- -re "Continuing(\\.| with no signal\\.)\[\r\n\]" {}
- }
- }
- }
- exp_continue
- }
- -re "(run\[\r\n\]*|)Starting program: \[^\r\n\]*\[\r\n\]" {
- exp_continue
- }
- -re "$gdb_prompt (signal 0|continue)\[\r\n\]+Continuing(\\.| with no signal\\.)\[\r\n\]" {
- exp_continue
- }
- -re "(.*)Breakpoint.*exit.*=0.*$gdb_prompt $" {
- append output $expect_out(1,string);
- set result [check_for_board_status output];
- gdb_comm_leave;
- if { $result > 0 } {
- return [list "fail" $output];
- }
- return [list "pass" $output];
- }
- -re "(.*)Breakpoint.*exit.*=\[1-9\]\[0-9\]*.*$gdb_prompt $" {
- append output $expect_out(1,string);
- set result [check_for_board_status output];
- gdb_comm_leave;
- if { $result == 0 } {
- return [list "pass" $output];
- }
- if [board_info $dest exists exit_statuses_bad] {
- return [list "pass" $output];
- }
- return [list "fail" $output];
- }
- -re "(.*)Breakpoint.*exit.*$gdb_prompt $" {
- append output $expect_out(1,string);
- set status [check_for_board_status output];
- gdb_comm_leave;
- if { $status > 0 } {
- return [list "fail" $output];
- }
- return [list "pass" $output];
- }
- -re "(.*)Breakpoint.*abort.*$gdb_prompt $" {
- append output $expect_out(1,string);
- check_for_board_status output;
- gdb_comm_leave;
- return [list "fail" $output];
- }
- -re "SIGTRAP.*$gdb_prompt $" {
- return [gdb_comm_reload $dest $prog $args];
- }
- -re "(.*)Program (received |terminated ).*$gdb_prompt $" {
- set output $expect_out(1,string);
- check_for_board_status output;
- gdb_comm_leave;
- remote_reboot $dest;
- return [list "fail" $output];
- }
- -re "(.*)Program exited with code \[0-9\]+.*$gdb_prompt $" {
- set output $expect_out(1,string);
- set status [check_for_board_status output];
- gdb_comm_leave;
- if { $status > 0 } {
- return [list "fail" $output];
- }
- return [list "pass" $output];
- }
- default {
- gdb_comm_leave;
- if [board_info $dest exists unreliable] {
- if { [board_info $dest unreliable] > 0 } {
- global board_info;
- set name [board_info $dest name];
- incr board_info($name,unreliable) -1;
- set result [gdb_comm_reload $dest $prog $args];
- incr board_info($name,unreliable);
- return $result;
- }
- }
- return [list "fail" ""];
- }
- }
- gdb_comm_leave;
- return [list "fail" ""];
- }
-
- # If we've tried less than 4 times to load PROG, reboot the target, restart GDB
- # and try again. Otherwise, return "untested".
- proc gdb_comm_reload { dest prog aargs } {
- global try_again;
-
- if { $try_again < 4 } {
- global GDB;
- remote_reboot $dest;
- remote_close host;
- incr try_again;
- set result [eval remote_load \"$dest\" \"$prog\" $aargs]
- set try_again 0;
- return "$result";
- } else {
- set try_again 0;
- return [list "untested" ""];
- }
- }
-
- set_board_info protocol "gdb_comm";
-