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 verbose
  28     global GDB
  29     global INTERNAL_GDBFLAGS GDBFLAGS
  30     global gdb_prompt
  31     global gdb_prompt_fail
  32     global timeout
  33     global gdb_spawn_id
  34
  35     gdb_stop_suppressing_tests
  36
  37     verbose "Spawning $GDB $INTERNAL_GDBFLAGS $GDBFLAGS"
  38
  39     if [info exists gdb_spawn_id] {
  40         return 0
  41     }
  42
  43     if ![is_remote host] {
  44         if { [which $GDB] == 0 } then {
  45             perror "$GDB does not exist."
  46             exit 1
  47         }
  48     }
  49     set res [remote_spawn host "$GDB $INTERNAL_GDBFLAGS $GDBFLAGS [host_info gdb_opts]"]
  50     if { $res < 0 || $res == "" } {
  51         perror "Spawning $GDB failed."
  52         return 1
  53     }
  54     gdb_expect 360 {
  55         -re ".*$gdb_prompt_fail.*$gdb_prompt_fail.*" {
  56             fail "double prompted fail prompt"
  57         }
  58         -re ".*$gdb_prompt.*$gdb_prompt.*" {
  59             fail "double prompted"
  60         }
  61         -re "\[\r\n\]$gdb_prompt_fail $" {
  62             fail "GDB initializing first prompt"
  63         }
  64         -re "\[\r\n\]$gdb_prompt $" {
  65             pass "GDB initializing first prompt"
  66         }
  67         -re "$gdb_prompt $"     {
  68             perror "GDB never initialized."
  69             return -1
  70         }
  71         -re "$gdb_prompt_fail $"        {
  72             perror "GDB never initialized."
  73             return -1
  74         }
  75         timeout {
  76             perror "(timeout) GDB never initialized after 10 seconds."
  77             remote_close host
  78             return -1
  79         }
  80     }
  81     set gdb_spawn_id $res
  82     return 0
  83 }
  84
  85 #
  86 # Overridable function. You can override this function in your
  87 # baseboard file.
  88 #
  89 proc prompt_gdb_start { } {
  90     default_prompt_gdb_start
  91 }
  92