gdb/testsuite/lib/prompt.exp

   1 # Copyright (C) 2011-2020 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # Specialized subroutines for launching gdb and testing the very first prompt.
  17
  18
  19 #
  20 # start gdb -- start gdb running, prompt procedure
  21 # this procedure differs from the default in that you must pass 'set height 0',
  22 # and 'set width 0', yourself in GDBFLAGS, and it has a gdb_prompt_fail variable,
  23 #
  24 # uses pass if it sees $gdb_prompt, and fail if it sees $gdb_prompt_fail.
  25 #
  26 proc default_prompt_gdb_start { } {
  27     global GDB
  28     global INTERNAL_GDBFLAGS GDBFLAGS
  29     global gdb_prompt
  30     global gdb_prompt_fail
  31     global timeout
  32     global gdb_spawn_id
  33
  34     gdb_stop_suppressing_tests
  35
  36     verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
  37
  38     if [info exists gdb_spawn_id] {
  39         return 0
  40     }
  41
  42     if ![is_remote host] {
  43         if { [which $GDB] == 0 } then {
  44             perror "$GDB does not exist."
  45             exit 1
  46         }
  47     }
  48     set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
  49     if { $res < 0 || $res == "" } {
  50         perror "Spawning $GDB failed."
  51         return 1
  52     }
  53     gdb_expect 360 {
  54         -re ".*$gdb_prompt_fail.*$gdb_prompt_fail.*" {
  55             fail "double prompted fail prompt"
  56         }
  57         -re ".*$gdb_prompt.*$gdb_prompt.*" {
  58             fail "double prompted"
  59         }
  60         -re "\[\r\n\]$gdb_prompt_fail $" {
  61             fail "GDB initializing first prompt"
  62         }
  63         -re "\[\r\n\]$gdb_prompt $" {
  64             pass "GDB initializing first prompt"
  65         }
  66         -re "$gdb_prompt $"     {
  67             perror "GDB never initialized."
  68             return -1
  69         }
  70         -re "$gdb_prompt_fail $"        {
  71             perror "GDB never initialized."
  72             return -1
  73         }
  74         timeout {
  75             perror "(timeout) GDB never initialized after 10 seconds."
  76             remote_close host
  77             return -1
  78         }
  79     }
  80     set gdb_spawn_id $res
  81     return 0
  82 }
  83
  84 #
  85 # Overridable function. You can override this function in your
  86 # baseboard file.
  87 #
  88 proc prompt_gdb_start { } {
  89     default_prompt_gdb_start
  90 }
  91