gdb/testsuite/gdb.tui/tui-layout-asm.exp

   1 # Copyright 2020-2021 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 # Ensure that 'layout asm' before starting the inferior puts us in the
  17 # asm layout and displays the disassembly for main.
  18
  19 tuiterm_env
  20
  21 standard_testfile tui-layout.c
  22
  23 if {[build_executable "failed to prepare" ${testfile} ${srcfile}] == -1} {
  24     return -1
  25 }
  26
  27 Term::clean_restart 24 80 $testfile
  28 if {![Term::prepare_for_tui]} {
  29     unsupported "TUI not supported"
  30     return
  31 }
  32
  33 # This puts us into TUI mode, and should display the ASM window.
  34 Term::command_no_prompt_prefix "layout asm"
  35 Term::check_box_contents "check asm box contents" 0 0 80 15 "<main>"
  36
  37 # Scroll the ASM window down using the down arrow key.  In an ideal
  38 # world we'd like to use PageDown here, but currently our terminal
  39 # library doesn't support such advanced things.
  40 set testname "scroll to end of assembler"
  41 set down_count 0
  42 while (1) {
  43     # Grab the second line, this is about to become the first line.
  44     set line [Term::get_line 2]
  45
  46     # Except, if the second line is blank then we are at the end of
  47     # the available asm output.  Pressing down again _shouldn't_
  48     # change the output, however, if GDB is working, and we press down
  49     # then the screen won't change, so the call to Term::wait_for
  50     # below will just timeout.  So for now we avoid testing the edge
  51     # case.
  52     if {[regexp -- "^\\| +\\|$" $line]} {
  53         # Second line is blank, we're at the end of the assembler.
  54         pass $testname
  55         break
  56     }
  57
  58     # Send the down key to GDB.
  59     send_gdb "\033\[B"
  60     incr down_count
  61     set re_line [string_to_regexp $line]
  62     # Ignore whitespace mismatches.
  63     regsub -all {\s+} $re_line {\s+} re_line
  64     if {[Term::wait_for $re_line] \
  65             && [regexp $re_line [Term::get_line 1]]} {
  66         # We scrolled successfully.
  67     } else {
  68         fail "$testname (scroll failed)"
  69         Term::dump_screen
  70         break
  71     }
  72
  73     if { $down_count > 250 } {
  74         # Maybe we should accept this as a pass in case a target
  75         # really does have loads of assembler to scroll through.
  76         fail "$testname (too much assembler)"
  77         Term::dump_screen
  78         break
  79     }
  80 }