gnu/dist/gdb6/gdb/testsuite/config/sid.exp

   1 # Test Framework Driver for GDB driving an external simulator
   2 #   Copyright 1999, 2001 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 load_lib gdb.exp
  19
  20 proc sid_start {} {
  21     global verbose
  22
  23     set port [lindex [split [target_info netport] ":"] 1]
  24
  25     # Set a default endianness
  26     case [target_info multilib_flags] in {
  27         { *big-endian* *-EB* *-meb* } { set sidendian "-EB" }
  28         { *little-endian* *-EL* *-mel* } { set sidendian "-EL" }
  29         default {
  30             if {[target_info exists sim,defaultendian]} then {
  31                 set sidendian [target_info sim,defaultendian]
  32             } else {
  33                 # rely on endianness settings in sid configuration defaults
  34                 set sidendian ""
  35             }
  36         }
  37     }
  38     case $sidendian in {
  39         { -EB } { set sidendian2 {-e "set cpu endian big"} }
  40         { -EL } { set sidendian2 {-e "set cpu endian little"} }
  41         default { set sidendian2 {} }
  42     }
  43
  44     # test to see whether to use use sid in build or install tree
  45     set use_build_tree [file exists ../../sid]
  46
  47     if {$use_build_tree} then {
  48         set pre_spawn {
  49             global env
  50             set env(SID_LIBRARY_PATH) [join [glob "../../sid/component/*"] ":"]
  51             set env(SID) "../../sid/main/dynamic/sid"
  52             if {! [file exists $env(SID)]} then { error "Cannot find sid in build tree" }
  53         }
  54         if { [board_info target sim,protocol] == "sid" } {
  55             set spawncmd "[target_info sim] [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
  56         } elseif { [board_info target sim,protocol] == "rawsid" } {
  57             set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
  58         } else {
  59             set spawncmd "../../sid/bsp/[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
  60         }
  61         set post_spawn {
  62             global env
  63             unset env(SID_LIBRARY_PATH)
  64             unset env(SID)
  65         }
  66     } else {
  67         set pre_spawn {}
  68         if { [board_info target sim,protocol] == "sid" } {
  69             # FIXME: sim,options may be from the build tree, should find
  70             # it in the install tree.
  71             set spawncmd "sid [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
  72         } elseif { [board_info target sim,protocol] == "rawsid" } {
  73             set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
  74         } else {
  75             set spawncmd "[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
  76         }
  77         set post_spawn {}
  78     }
  79
  80     eval $pre_spawn
  81     if {[catch [list remote_spawn host $spawncmd] msg]} {
  82         perror $msg
  83         exit 1
  84     }
  85     eval $post_spawn
  86
  87     # Don't do the following any more; it breaks with "runtest ... < /dev/null"
  88 #    expect_background {
  89 #       -re \[^\n\]*\n {
  90 #           regsub "\n" $expect_out(buffer) {} msg
  91 #           verbose "SID: $msg" 2
  92 #       }
  93 #    }
  94
  95     # There should be no need to sleep to give SID time to start;
  96     # GDB would wait for a fair while for the stub to respond.
  97     sleep 4
  98
  99     if ![target_info exists gdb,no_push_conn] {
 100         remote_push_conn host;
 101     }
 102 }
 103
 104 #
 105 # Handle GDB talking to SID
 106 #
 107
 108 proc gdb_start {} {
 109     sid_start
 110     return [default_gdb_start]
 111 }
 112
 113 proc sid_exit {} {
 114     if ![target_info exists gdb,no_push_conn] {
 115         remote_close host;
 116         remote_pop_conn host;
 117     }
 118 }
 119
 120 proc gdb_exit {} {
 121     set result [default_gdb_exit]
 122     sid_exit
 123     return $result
 124 }
 125
 126 #
 127 # gdb_target_sid
 128 # Set gdb to target the simulator
 129 #
 130 proc send_target_sid { } {
 131     # wait a little while, giving sid time to shut down & restart its
 132     # gdb socket
 133     sleep 4
 134     send_gdb "target [target_info gdb_protocol] [target_info netport]\n"
 135 }
 136
 137 proc gdb_target_sid { } {
 138     global gdb_prompt
 139     global exit_status
 140
 141     send_target_sid
 142
 143     global timeout
 144     set prev_timeout $timeout
 145     set timeout 60
 146     verbose "Timeout is now $timeout seconds" 2
 147     gdb_expect {
 148         -re ".*\[Ee\]rror.*$gdb_prompt $" {
 149             perror "Couldn't set target for remote simulator."
 150             cleanup
 151             gdb_exit
 152         }
 153         -re "Remote debugging using.*$gdb_prompt"       {
 154             verbose "Set target to sid"
 155         }
 156         timeout {
 157             perror "Couldn't set target for remote simulator."
 158             cleanup
 159             gdb_exit
 160         }
 161     }
 162     set timeout $prev_timeout
 163     verbose "Timeout is now $timeout seconds" 2
 164 }
 165
 166 #
 167 # gdb_load -- load a file into the debugger.
 168 #             return a -1 if anything goes wrong.
 169 #
 170 proc gdb_load { arg } {
 171     global verbose
 172     global loadpath
 173     global loadfile
 174     global GDB
 175     global gdb_prompt
 176     global retval
 177
 178     gdb_unload
 179     if [gdb_file_cmd $arg] then { return -1 }
 180     gdb_target_sid
 181
 182     send_gdb "load\n"
 183     global timeout
 184     set prev_timeout $timeout
 185     set timeout 2400
 186     verbose "Timeout is now $timeout seconds" 2
 187     gdb_expect {
 188         -re ".*\[Ee\]rror.*$gdb_prompt $" {
 189             if $verbose>1 then {
 190                 perror "Error during download."
 191             }
 192             set retval -1;
 193         }
 194         -re ".*$gdb_prompt $" {
 195             if $verbose>1 then {
 196                 send_user "Loaded $arg into $GDB\n"
 197             }
 198             set retval 1;
 199         }
 200         -re "$gdb_prompt $"     {
 201             if $verbose>1 then {
 202                 perror "GDB couldn't load."
 203             }
 204             set retval -1;
 205         }
 206         timeout {
 207             if $verbose>1 then {
 208                 perror "Timed out trying to load $arg."
 209             }
 210             set retval -1;
 211         }
 212     }
 213     set timeout $prev_timeout
 214     verbose "Timeout is now $timeout seconds" 2
 215     return $retval;
 216 }