gdb/testsuite/config/sid.exp

   1 # Test Framework Driver for GDB driving an external simulator
   2 #   Copyright 1999-2014 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 3 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, see <http://www.gnu.org/licenses/>.
  16
  17 load_lib gdb.exp
  18
  19 proc sid_start {} {
  20     global verbose
  21
  22     set port [lindex [split [target_info netport] ":"] 1]
  23
  24     # Set a default endianness
  25     case [target_info multilib_flags] in {
  26         { *big-endian* *-EB* *-meb* } { set sidendian "-EB" }
  27         { *little-endian* *-EL* *-mel* } { set sidendian "-EL" }
  28         default {
  29             if {[target_info exists sim,defaultendian]} then {
  30                 set sidendian [target_info sim,defaultendian]
  31             } else {
  32                 # rely on endianness settings in sid configuration defaults
  33                 set sidendian ""
  34             }
  35         }
  36     }
  37     case $sidendian in {
  38         { -EB } { set sidendian2 {-e "set cpu endian big"} }
  39         { -EL } { set sidendian2 {-e "set cpu endian little"} }
  40         default { set sidendian2 {} }
  41     }
  42
  43     # test to see whether to use use sid in build or install tree
  44     set use_build_tree [file exists ../../sid]
  45
  46     if {$use_build_tree} then {
  47         set pre_spawn {
  48             global env
  49             set env(SID_LIBRARY_PATH) [join [glob "../../sid/component/*"] ":"]
  50             set env(SID) "../../sid/main/dynamic/sid"
  51             if {! [file exists $env(SID)]} then { error "Cannot find sid in build tree" }
  52         }
  53         if { [board_info target sim,protocol] == "sid" } {
  54             set spawncmd "[target_info sim] [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
  55         } elseif { [board_info target sim,protocol] == "rawsid" } {
  56             set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
  57         } else {
  58             set spawncmd "../../sid/bsp/[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
  59         }
  60         set post_spawn {
  61             global env
  62             unset env(SID_LIBRARY_PATH)
  63             unset env(SID)
  64         }
  65     } else {
  66         set pre_spawn {}
  67         if { [board_info target sim,protocol] == "sid" } {
  68             # FIXME: sim,options may be from the build tree, should find
  69             # it in the install tree.
  70             set spawncmd "sid [target_info sim,options] $sidendian2 -e \"set cpu-gdb-socket sockaddr-local 0.0.0.0:$port\""
  71         } elseif { [board_info target sim,protocol] == "rawsid" } {
  72             set spawncmd "[target_info sim] [target_info sim,options] -$sidendian --gdb=$port"
  73         } else {
  74             set spawncmd "[target_info sim] $sidendian --gdb=$port [target_info sim,options]"
  75         }
  76         set post_spawn {}
  77     }
  78
  79     eval $pre_spawn
  80     if {[catch [list remote_spawn host $spawncmd] msg]} {
  81         perror $msg
  82         exit 1
  83     }
  84     eval $post_spawn
  85
  86     # Don't do the following any more; it breaks with "runtest ... < /dev/null"
  87 #    expect_background {
  88 #       -re \[^\n\]*\n {
  89 #           regsub "\n" $expect_out(buffer) {} msg
  90 #           verbose "SID: $msg" 2
  91 #       }
  92 #    }
  93
  94     # There should be no need to sleep to give SID time to start;
  95     # GDB would wait for a fair while for the stub to respond.
  96     sleep 4
  97
  98     if ![target_info exists gdb,no_push_conn] {
  99         remote_push_conn host
 100     }
 101 }
 102
 103 #
 104 # Handle GDB talking to SID
 105 #
 106
 107 proc gdb_start {} {
 108     sid_start
 109     return [default_gdb_start]
 110 }
 111
 112 proc sid_exit {} {
 113     if ![target_info exists gdb,no_push_conn] {
 114         remote_close host
 115         remote_pop_conn host
 116     }
 117 }
 118
 119 proc gdb_exit {} {
 120     set result [default_gdb_exit]
 121     sid_exit
 122     return $result
 123 }
 124
 125 #
 126 # gdb_target_sid
 127 # Set gdb to target the simulator
 128 #
 129 proc send_target_sid { } {
 130     # wait a little while, giving sid time to shut down & restart its
 131     # gdb socket
 132     sleep 4
 133     send_gdb "target [target_info gdb_protocol] [target_info netport]\n"
 134 }
 135
 136 proc gdb_target_sid { } {
 137     global gdb_prompt
 138     global exit_status
 139
 140     send_target_sid
 141
 142     global timeout
 143     set prev_timeout $timeout
 144     set timeout 60
 145     verbose "Timeout is now $timeout seconds" 2
 146     gdb_expect {
 147         -re ".*\[Ee\]rror.*$gdb_prompt $" {
 148             perror "Couldn't set target for remote simulator."
 149             cleanup
 150             gdb_exit
 151         }
 152         -re "Remote debugging using.*$gdb_prompt"       {
 153             verbose "Set target to sid"
 154         }
 155         timeout {
 156             perror "Couldn't set target for remote simulator."
 157             cleanup
 158             gdb_exit
 159         }
 160     }
 161     set timeout $prev_timeout
 162     verbose "Timeout is now $timeout seconds" 2
 163 }
 164
 165 #
 166 # gdb_load -- load a file into the debugger.
 167 #             return a -1 if anything goes wrong.
 168 #
 169 proc gdb_load { arg } {
 170     global verbose
 171     global loadpath
 172     global loadfile
 173     global GDB
 174     global gdb_prompt
 175     global retval
 176
 177     if { $arg != "" } {
 178         if [gdb_file_cmd $arg] then { return -1 }
 179     }
 180
 181     gdb_target_sid
 182
 183     send_gdb "load\n"
 184     global timeout
 185     set prev_timeout $timeout
 186     set timeout 2400
 187     verbose "Timeout is now $timeout seconds" 2
 188     gdb_expect {
 189         -re ".*\[Ee\]rror.*$gdb_prompt $" {
 190             if $verbose>1 then {
 191                 perror "Error during download."
 192             }
 193             set retval -1
 194         }
 195         -re ".*$gdb_prompt $" {
 196             if $verbose>1 then {
 197                 send_user "Loaded $arg into $GDB\n"
 198             }
 199             set retval 0
 200         }
 201         -re "$gdb_prompt $"     {
 202             if $verbose>1 then {
 203                 perror "GDB couldn't load."
 204             }
 205             set retval -1
 206         }
 207         timeout {
 208             if $verbose>1 then {
 209                 perror "Timed out trying to load $arg."
 210             }
 211             set retval -1
 212         }
 213     }
 214     set timeout $prev_timeout
 215     verbose "Timeout is now $timeout seconds" 2
 216     return $retval
 217 }