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markom |
# Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
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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 2 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, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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# Please email any bugs, comments, and/or additions to this file to:
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# DejaGnu@cygnus.com
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# Note: some of this was cribbed from the gdb testsuite since we need
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# to use some pretty standard gdb features (breakpoints in particular).
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# Load up some standard junk.
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load_lib remote.exp
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if ![info exists board] {
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perror "$board must be set before loading gdb-comm"
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}
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# The number of times we've tried to download/execute this executable.
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set try_again 0
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#
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# Delete all breakpoints and verify that they were deleted. If anything
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# goes wrong, return -1.
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#
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proc gdb_comm_delete_breakpoints {} {
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global gdb_prompt
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remote_send host "delete breakpoints\n";
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remote_expect host 10 {
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-re "Delete all breakpoints.*y or n. $" {
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remote_send host "y\n"
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exp_continue
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}
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-re ".*$gdb_prompt $" { }
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timeout { perror "Delete all breakpoints (timeout)" ; return -1}
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}
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remote_send host "info breakpoints\n"
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remote_expect host 10 {
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-re "No breakpoints or watchpoints..*$gdb_prompt $" {}
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-re ".*$gdb_prompt $" { perror "breakpoints not deleted" ; return -1}
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timeout { perror "info breakpoints (timeout)" ; return -1}
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}
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return 0;
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}
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#
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# Inform the debugger that we have a new exec file.
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# return a -1 if anything goes wrong, 0 on success.
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#
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proc gdb_comm_file_cmd { 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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upvar timeout timeout
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# The "file" command loads up a new symbol file for gdb, deal with
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# the various messages it might spew out.
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if [is_remote host] {
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set arg [remote_download host $arg a.out];
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}
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remote_send host "file $arg\n"
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remote_expect host 60 {
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-re "Reading symbols from.*done.*$gdb_prompt $" {
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verbose "\t\tLoaded $arg into the $GDB"
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return 0
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}
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-re "has no symbol-table.*$gdb_prompt $" {
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perror "$arg wasn't compiled with \"-g\""
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return -1
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}
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-re "A program is being debugged already.*Kill it.*y or n. $" {
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remote_send host "y\n"
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verbose "\t\tKilling previous program being debugged"
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exp_continue
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}
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-re "Load new symbol table from \".*\".*y or n.*$" {
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remote_send host "y\n"
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remote_expect host 60 {
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-re "Reading symbols from.*done.*$gdb_prompt $" {
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verbose "\t\tLoaded $arg with new symbol table into $GDB"
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return 0
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}
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timeout {
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perror "(timeout) Couldn't load $arg, other program already loaded."
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return -1
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}
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}
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}
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-re ".*No such file or directory.*$gdb_prompt $" {
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perror "($arg) No such file or directory\n"
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return -1
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}
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-re "$gdb_prompt $" {
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perror "couldn't load $arg into $GDB."
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return -1
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}
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timeout {
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perror "couldn't load $arg into $GDB (timed out)."
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return -1
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}
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eof {
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# This is an attempt to detect a core dump, but seems not to
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# work. Perhaps we need to match .* followed by eof, in which
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# expect does not seem to have a way to do that.
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perror "couldn't load $arg into $GDB (end of file)."
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return -1
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}
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}
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return 0;
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}
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# Disconnect from the target and forget that we have an executable. Returns
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# -1 on failure, 0 on success.
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proc gdb_comm_go_idle { } {
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global gdb_prompt;
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if ![board_info host exists fileid] {
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return -1;
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}
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remote_send host "target exec\n";
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remote_expect host 10 {
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-re "Kill it.*y or n.*$" {
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remote_send host "y\n"
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exp_continue;
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}
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-re "No exec.* file now.*$gdb_prompt $" {
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return 0;
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}
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default {
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remote_close host;
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return -1;
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}
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}
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}
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# Start GDB running with target DEST.
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proc gdb_comm_start { dest } {
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global GDB
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global gdb_prompt
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global tool_root_dir
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# The variable gdb_prompt is a regexp which matches the gdb prompt. Set it
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# if it is not already set.
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if ![board_info $dest exists gdb_prompt] then {
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set gdb_prompt "\\(gdb\\)"
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} else {
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set gdb_prompt [board_info $dest gdb_prompt];
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}
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# Similarly for GDB. Look in the object directory for gdb if we aren't
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# provided with one.
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if ![info exists GDB] then {
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set GDB "[lookfor_file ${tool_root_dir} gdb/gdb]"
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if { $GDB == "" } {
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set GDB [transform gdb]
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}
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}
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if [board_info host exists gdb_opts] {
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set gdb_opts [board_info host gdb_opts];
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} else {
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set gdb_opts ""
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}
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# Start up gdb (no startfiles, no windows) and wait for a prompt.
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remote_spawn host "$GDB $gdb_opts -nw -nx";
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remote_expect host 60 {
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-re ".*$gdb_prompt $" { }
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}
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remote_send host "set height 0\n";
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remote_expect host 10 {
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-re ".*$gdb_prompt $" {}
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}
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remote_send host "set width 0\n";
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remote_expect host 10 {
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-re ".*$gdb_prompt $" {}
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}
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}
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# Add a breakpoint at function FUNCTION. We assume that GDB has already been
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# started.
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proc gdb_comm_add_breakpoint { function } {
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global gdb_prompt
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remote_send host "break $function\n"
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remote_expect host 60 {
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-re "Breakpoint.*$gdb_prompt $" { return "" }
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-re "Function.*not defined.*$gdb_prompt $" { return "undef" }
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-re "No symbol table.*$gdb_prompt $" { return "undef" }
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default {
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return "untested"
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}
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}
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}
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#
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# quit_gdb -- try to quit GDB gracefully
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#
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proc quit_gdb { } {
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global gdb_prompt;
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set spawn_id [board_info host fileid];
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if { $spawn_id != "" && $spawn_id > -1 } {
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if { [remote_send host "quit\n"] == "" } {
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remote_expect host 10 {
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-re ".*y or n.*$" {
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remote_send host "y\n";
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exp_continue;
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}
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-re ".*\[*\]\[*\]\[*\].*EXIT code" { }
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default { }
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}
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}
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}
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if ![is_remote host] {
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remote_close host;
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}
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}
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proc gdb_comm_leave { } {
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if [is_remote host] {
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quit_gdb;
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} else {
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gdb_comm_go_idle;
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}
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}
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#
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# gdb_comm_load -- load the program and execute it
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#
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# PROG is a full pathname to the file to load, no arguments.
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# Result is "untested", "pass", "fail", etc.
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#
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proc gdb_comm_load { dest prog args } {
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global GDB
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global GDBFLAGS
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global gdb_prompt
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global timeout
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set argnames { "command-line arguments" "input file" "output file" }
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for { set x 0; } { $x < [llength $args] } { incr x } {
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if { [lindex $args $x] != "" } {
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return [list "unsupported" "no support for [lindex $argnames $x] on this target"];
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}
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}
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# Make sure the file we're supposed to load really exists.
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if ![file exists $prog] then {
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perror "$prog does not exist."
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return [list "untested" ""];
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}
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if { [is_remote host] || ![board_info host exists fileid] } {
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gdb_comm_start $dest;
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}
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# Remove all breakpoints, then tell the debugger that we have
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# new exec file.
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if { [gdb_comm_delete_breakpoints] != 0 } {
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gdb_comm_leave;
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return [gdb_comm_reload $dest $prog $args];
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}
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if { [gdb_comm_file_cmd $prog] != 0 } {
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gdb_comm_leave;
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| 279 |
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return [gdb_comm_reload $dest $prog $args];
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}
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| 281 |
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if [board_info $dest exists gdb_sect_offset] {
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set textoff [board_info $dest gdb_sect_offset];
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remote_send host "sect .text $textoff\n";
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remote_expect host 10 {
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| 285 |
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-re "(0x\[0-9a-z]+) - 0x\[0-9a-z\]+ is \\.data" {
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| 286 |
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set dataoff $expect_out(1,string);
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exp_continue;
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| 288 |
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}
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| 289 |
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-re "(0x\[0-9a-z\]+) - 0x\[0-9a-z\]+ is \\.bss" {
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| 290 |
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set bssoff $expect_out(1,string);
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exp_continue;
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| 292 |
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}
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| 293 |
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-re "$gdb_prompt" { }
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| 294 |
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}
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| 295 |
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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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| 297 |
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remote_send host "sect .data $dataoff\n";
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| 298 |
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remote_expect host 10 {
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| 299 |
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-re "$gdb_prompt" { }
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| 300 |
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}
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| 301 |
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remote_send host "sect .bss $bssoff\n";
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| 302 |
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remote_expect host 10 {
|
| 303 |
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-re "$gdb_prompt" { }
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| 304 |
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}
|
| 305 |
|
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}
|
| 306 |
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|
| 307 |
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# Now set up breakpoints in exit, _exit, and abort. These
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| 308 |
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# are used to determine if a c-torture test passed or failed. More
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| 309 |
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# work would be necessary for things like the g++ testsuite which
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| 310 |
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# use printf to indicate pass/fail status.
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| 311 |
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| 312 |
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if { [gdb_comm_add_breakpoint _exit] != "" } {
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| 313 |
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gdb_comm_add_breakpoint exit;
|
| 314 |
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}
|
| 315 |
|
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gdb_comm_add_breakpoint abort;
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| 316 |
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| 317 |
|
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set protocol [board_info $dest gdb_protocol];
|
| 318 |
|
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if [board_info $dest exists gdb_serial] {
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| 319 |
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set targetname [board_info $dest gdb_serial];
|
| 320 |
|
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} elseif [board_info $dest exists netport] {
|
| 321 |
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set targetname [board_info $dest netport];
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| 322 |
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} else {
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| 323 |
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if [board_info $dest exists serial] {
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| 324 |
|
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set targetname [board_info $dest serial];
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| 325 |
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} else {
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| 326 |
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set targetname ""
|
| 327 |
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}
|
| 328 |
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}
|
| 329 |
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if [board_info $dest exists baud] {
|
| 330 |
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remote_send host "set remotebaud [board_info $dest baud]\n"
|
| 331 |
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remote_expect host 10 {
|
| 332 |
|
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-re ".*$gdb_prompt $" {}
|
| 333 |
|
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default {
|
| 334 |
|
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warning "failed setting baud rate";
|
| 335 |
|
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}
|
| 336 |
|
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}
|
| 337 |
|
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}
|
| 338 |
|
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remote_send host "target $protocol $targetname\n";
|
| 339 |
|
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remote_expect host 60 {
|
| 340 |
|
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-re "Couldn.t establish conn.*$gdb_prompt $" {
|
| 341 |
|
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warning "Unable to connect to $targetname with GDB."
|
| 342 |
|
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quit_gdb;
|
| 343 |
|
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return [gdb_comm_reload $dest $prog $args]
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| 344 |
|
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}
|
| 345 |
|
|
-re "Ending remote.*$gdb_prompt $" {
|
| 346 |
|
|
warning "Unable to connect to $targetname with GDB."
|
| 347 |
|
|
quit_gdb;
|
| 348 |
|
|
return [gdb_comm_reload $dest $prog $args]
|
| 349 |
|
|
}
|
| 350 |
|
|
-re "Remote target $protocol connected to.*$gdb_prompt $" { }
|
| 351 |
|
|
-re "Remote target $targetname connected to.*$gdb_prompt $" { }
|
| 352 |
|
|
-re "Connected to ARM RDI target.*$gdb_prompt $" { }
|
| 353 |
|
|
-re "Connected to the simulator.*$gdb_prompt $" { }
|
| 354 |
|
|
-re "Remote.*using $targetname.*$gdb_prompt $" { }
|
| 355 |
|
|
-re "$gdb_prompt $" {
|
| 356 |
|
|
warning "Unable to connect to $targetname with GDB."
|
| 357 |
|
|
quit_gdb;
|
| 358 |
|
|
return [gdb_comm_reload $dest $prog $args]
|
| 359 |
|
|
}
|
| 360 |
|
|
-re ".*RDI_open.*should reset target.*" {
|
| 361 |
|
|
warning "RDI Open Failed"
|
| 362 |
|
|
quit_gdb;
|
| 363 |
|
|
return [gdb_comm_reload $dest $prog $args]
|
| 364 |
|
|
}
|
| 365 |
|
|
default {
|
| 366 |
|
|
warning "Unable to connect to $targetname with GDB."
|
| 367 |
|
|
quit_gdb;
|
| 368 |
|
|
return [gdb_comm_reload $dest $prog $args]
|
| 369 |
|
|
}
|
| 370 |
|
|
}
|
| 371 |
|
|
|
| 372 |
|
|
if [target_info exists gdb_init_command] {
|
| 373 |
|
|
remote_send host "[target_info gdb_init_command]\n";
|
| 374 |
|
|
remote_expect host 10 {
|
| 375 |
|
|
-re ".*$gdb_prompt $" { }
|
| 376 |
|
|
default {
|
| 377 |
|
|
gdb_comm_leave;
|
| 378 |
|
|
return [list "fail" ""];
|
| 379 |
|
|
}
|
| 380 |
|
|
}
|
| 381 |
|
|
}
|
| 382 |
|
|
# Now download the executable to the target board. If communications
|
| 383 |
|
|
# with the target are very slow the timeout might need to be increased.
|
| 384 |
|
|
if [board_info $dest exists gdb_load_offset] {
|
| 385 |
|
|
remote_send host "load $prog [board_info $dest gdb_load_offset]\n";
|
| 386 |
|
|
} else {
|
| 387 |
|
|
remote_send host "load\n"
|
| 388 |
|
|
}
|
| 389 |
|
|
remote_expect host 600 {
|
| 390 |
|
|
-re "text.*data.*$gdb_prompt $" { }
|
| 391 |
|
|
-re "data.*text.*$gdb_prompt $" { }
|
| 392 |
|
|
-re "$gdb_prompt $" {
|
| 393 |
|
|
warning "Unable to send program to target board."
|
| 394 |
|
|
gdb_comm_leave;
|
| 395 |
|
|
return [gdb_comm_reload $dest $prog $args];
|
| 396 |
|
|
}
|
| 397 |
|
|
default {
|
| 398 |
|
|
warning "Unable to send program to target board."
|
| 399 |
|
|
gdb_comm_leave;
|
| 400 |
|
|
return [gdb_comm_reload $dest $prog $args];
|
| 401 |
|
|
}
|
| 402 |
|
|
}
|
| 403 |
|
|
|
| 404 |
|
|
set output ""
|
| 405 |
|
|
|
| 406 |
|
|
# Now start up the program and look for our magic breakpoints.
|
| 407 |
|
|
# And a whole lot of other magic stuff too.
|
| 408 |
|
|
|
| 409 |
|
|
if [board_info $dest exists gdb_run_command] {
|
| 410 |
|
|
remote_send host "[board_info $dest gdb_run_command]\n";
|
| 411 |
|
|
} else {
|
| 412 |
|
|
remote_send host "run\n"
|
| 413 |
|
|
}
|
| 414 |
|
|
# FIXME: The value 300 below should be a parameter.
|
| 415 |
|
|
if [board_info $dest exists testcase_timeout] {
|
| 416 |
|
|
set testcase_timeout [board_info $dest testcase_timeout];
|
| 417 |
|
|
} else {
|
| 418 |
|
|
set testcase_timeout 300;
|
| 419 |
|
|
}
|
| 420 |
|
|
remote_expect host $testcase_timeout {
|
| 421 |
|
|
-re "Line.*Jump anyway.*.y or n.*" {
|
| 422 |
|
|
remote_send host "y\n";
|
| 423 |
|
|
exp_continue;
|
| 424 |
|
|
}
|
| 425 |
|
|
-re "Continuing( at |\\.| with no signal\\.)\[^\r\n\]*\[\r\n\]" {
|
| 426 |
|
|
exp_continue;
|
| 427 |
|
|
}
|
| 428 |
|
|
-re ".*Start it from the beginning?.*y or n.*" {
|
| 429 |
|
|
remote_send host "n\n";
|
| 430 |
|
|
remote_expect host 10 {
|
| 431 |
|
|
-re ".*$gdb_prompt $" {
|
| 432 |
|
|
remote_send host "signal 0\n";
|
| 433 |
|
|
remote_expect host 10 {
|
| 434 |
|
|
-re "signal 0\[\r\n\]+" { exp_continue; }
|
| 435 |
|
|
-re "Continuing(\\.| with no signal\\.)\[\r\n\]" {}
|
| 436 |
|
|
}
|
| 437 |
|
|
}
|
| 438 |
|
|
}
|
| 439 |
|
|
exp_continue
|
| 440 |
|
|
}
|
| 441 |
|
|
-re "(run\[\r\n\]*|)Starting program: \[^\r\n\]*\[\r\n\]" {
|
| 442 |
|
|
exp_continue
|
| 443 |
|
|
}
|
| 444 |
|
|
-re "$gdb_prompt (signal 0|continue)\[\r\n\]+Continuing(\\.| with no signal\\.)\[\r\n\]" {
|
| 445 |
|
|
exp_continue
|
| 446 |
|
|
}
|
| 447 |
|
|
-re "(.*)Breakpoint.*exit.*=0.*$gdb_prompt $" {
|
| 448 |
|
|
append output $expect_out(1,string);
|
| 449 |
|
|
set result [check_for_board_status output];
|
| 450 |
|
|
gdb_comm_leave;
|
| 451 |
|
|
if { $result > 0 } {
|
| 452 |
|
|
return [list "fail" $output];
|
| 453 |
|
|
}
|
| 454 |
|
|
return [list "pass" $output];
|
| 455 |
|
|
}
|
| 456 |
|
|
-re "(.*)Breakpoint.*exit.*=\[1-9\]\[0-9\]*.*$gdb_prompt $" {
|
| 457 |
|
|
append output $expect_out(1,string);
|
| 458 |
|
|
set result [check_for_board_status output];
|
| 459 |
|
|
gdb_comm_leave;
|
| 460 |
|
|
if { $result == 0 } {
|
| 461 |
|
|
return [list "pass" $output];
|
| 462 |
|
|
}
|
| 463 |
|
|
if [board_info $dest exists exit_statuses_bad] {
|
| 464 |
|
|
return [list "pass" $output];
|
| 465 |
|
|
}
|
| 466 |
|
|
return [list "fail" $output];
|
| 467 |
|
|
}
|
| 468 |
|
|
-re "(.*)Breakpoint.*exit.*$gdb_prompt $" {
|
| 469 |
|
|
append output $expect_out(1,string);
|
| 470 |
|
|
set status [check_for_board_status output];
|
| 471 |
|
|
gdb_comm_leave;
|
| 472 |
|
|
if { $status > 0 } {
|
| 473 |
|
|
return [list "fail" $output];
|
| 474 |
|
|
}
|
| 475 |
|
|
return [list "pass" $output];
|
| 476 |
|
|
}
|
| 477 |
|
|
-re "(.*)Breakpoint.*abort.*$gdb_prompt $" {
|
| 478 |
|
|
append output $expect_out(1,string);
|
| 479 |
|
|
check_for_board_status output;
|
| 480 |
|
|
gdb_comm_leave;
|
| 481 |
|
|
return [list "fail" $output];
|
| 482 |
|
|
}
|
| 483 |
|
|
-re "SIGTRAP.*$gdb_prompt $" {
|
| 484 |
|
|
return [gdb_comm_reload $dest $prog $args];
|
| 485 |
|
|
}
|
| 486 |
|
|
-re "(.*)Program (received |terminated ).*$gdb_prompt $" {
|
| 487 |
|
|
set output $expect_out(1,string);
|
| 488 |
|
|
check_for_board_status output;
|
| 489 |
|
|
gdb_comm_leave;
|
| 490 |
|
|
remote_reboot $dest;
|
| 491 |
|
|
return [list "fail" $output];
|
| 492 |
|
|
}
|
| 493 |
|
|
-re "(.*)Program exited with code \[0-9\]+.*$gdb_prompt $" {
|
| 494 |
|
|
set output $expect_out(1,string);
|
| 495 |
|
|
set status [check_for_board_status output];
|
| 496 |
|
|
gdb_comm_leave;
|
| 497 |
|
|
if { $status > 0 } {
|
| 498 |
|
|
return [list "fail" $output];
|
| 499 |
|
|
}
|
| 500 |
|
|
return [list "pass" $output];
|
| 501 |
|
|
}
|
| 502 |
|
|
default {
|
| 503 |
|
|
gdb_comm_leave;
|
| 504 |
|
|
if [board_info $dest exists unreliable] {
|
| 505 |
|
|
if { [board_info $dest unreliable] > 0 } {
|
| 506 |
|
|
global board_info;
|
| 507 |
|
|
set name [board_info $dest name];
|
| 508 |
|
|
incr board_info($name,unreliable) -1;
|
| 509 |
|
|
set result [gdb_comm_reload $dest $prog $args];
|
| 510 |
|
|
incr board_info($name,unreliable);
|
| 511 |
|
|
return $result;
|
| 512 |
|
|
}
|
| 513 |
|
|
}
|
| 514 |
|
|
return [list "fail" ""];
|
| 515 |
|
|
}
|
| 516 |
|
|
}
|
| 517 |
|
|
gdb_comm_leave;
|
| 518 |
|
|
return [list "fail" ""];
|
| 519 |
|
|
}
|
| 520 |
|
|
|
| 521 |
|
|
# If we've tried less than 4 times to load PROG, reboot the target, restart GDB
|
| 522 |
|
|
# and try again. Otherwise, return "untested".
|
| 523 |
|
|
proc gdb_comm_reload { dest prog aargs } {
|
| 524 |
|
|
global try_again;
|
| 525 |
|
|
|
| 526 |
|
|
# how many times have we done this?
|
| 527 |
|
|
set n_reloads [board_info $dest n_reloads]
|
| 528 |
|
|
if {$n_reloads == ""} {
|
| 529 |
|
|
set n_reloads 0
|
| 530 |
|
|
}
|
| 531 |
|
|
|
| 532 |
|
|
# increment it
|
| 533 |
|
|
global board_info
|
| 534 |
|
|
set name [board_info $dest name]
|
| 535 |
|
|
set board_info($dest,n_reloads) [expr {$n_reloads + 1}]
|
| 536 |
|
|
|
| 537 |
|
|
# how many times are we allowed to do this?
|
| 538 |
|
|
set max [board_info $dest max_reload_reboots]
|
| 539 |
|
|
if {$max == ""} {
|
| 540 |
|
|
set max 15
|
| 541 |
|
|
}
|
| 542 |
|
|
|
| 543 |
|
|
# if we've been doing this too much, something's very
|
| 544 |
|
|
# wrong. just give up, to reduce stress on boards.
|
| 545 |
|
|
if {$max == $n_reloads} {
|
| 546 |
|
|
perror "Too many reboots. Giving up."
|
| 547 |
|
|
}
|
| 548 |
|
|
if {$max <= $n_reloads} {
|
| 549 |
|
|
return {untested {}}
|
| 550 |
|
|
}
|
| 551 |
|
|
|
| 552 |
|
|
if { $try_again < 4 } {
|
| 553 |
|
|
global GDB;
|
| 554 |
|
|
remote_reboot $dest;
|
| 555 |
|
|
remote_close host;
|
| 556 |
|
|
incr try_again;
|
| 557 |
|
|
set result [eval remote_load \"$dest\" \"$prog\" $aargs]
|
| 558 |
|
|
set try_again 0;
|
| 559 |
|
|
return "$result";
|
| 560 |
|
|
} else {
|
| 561 |
|
|
set try_again 0;
|
| 562 |
|
|
return [list "untested" ""];
|
| 563 |
|
|
}
|
| 564 |
|
|
}
|
| 565 |
|
|
|
| 566 |
|
|
set_board_info protocol "gdb_comm";
|
