gdb/testsuite/lib/range-stepping-support.exp

   1 # Copyright 2013-2019 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 # Execute command CMD and check that GDB sends the expected number of
  17 # vCont;r packet.  Returns 0 if the test passes, otherwise returns 1.
  18
  19 proc exec_cmd_expect_vCont_count { cmd exp_vCont_r } {
  20     global gdb_prompt
  21
  22     gdb_test_no_output "set debug remote 1" ""
  23
  24     set test "${cmd}: vCont;r=${exp_vCont_r}"
  25     set r_counter 0
  26     set s_counter 0
  27     set ret 1
  28     # We either get a stop reply in all-stop mode, or an OK in
  29     # non-stop mode.
  30     set vcont_reply "(T\[\[:xdigit:\]\]\[\[:xdigit:\]\]|OK)"
  31     gdb_test_multiple $cmd $test {
  32         -re "vCont;s\[^\r\n\]*Packet received: $vcont_reply" {
  33             incr s_counter
  34             exp_continue
  35         }
  36         -re "vCont;r\[^\r\n\]*Packet received: $vcont_reply" {
  37             incr r_counter
  38             exp_continue
  39         }
  40         -re "\r\n" {
  41             # Prevent overflowing the expect buffer.
  42             exp_continue
  43         }
  44         -re "$gdb_prompt $" {
  45             if { $r_counter == ${exp_vCont_r} } {
  46                 pass $test
  47                 set ret 0
  48             } else {
  49                 fail $test
  50             }
  51         }
  52     }
  53
  54     gdb_test_no_output "set debug remote 0" ""
  55     return $ret
  56 }
  57
  58 # Check whether range stepping is supported by the target.
  59
  60 proc gdb_range_stepping_enabled { } {
  61     global gdb_prompt
  62
  63     set command "set range-stepping on"
  64     set message "probe range-stepping support"
  65     gdb_test_multiple $command $message {
  66         -re "Range stepping is not supported.*\r\n$gdb_prompt $" {
  67             pass $message
  68             return 0
  69         }
  70         -re "^$command\r\n$gdb_prompt $" {
  71             pass $message
  72             return 1
  73         }
  74     }
  75
  76     return 0
  77 }