108 lines
3.9 KiB
Text
108 lines
3.9 KiB
Text
# Copyright 2020-2022 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Ensure that 'layout asm' before starting the inferior puts us in the
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# asm layout and displays the disassembly for main.
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tuiterm_env
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standard_testfile tui-layout.c
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if {[build_executable "failed to prepare" ${testfile} ${srcfile}] == -1} {
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return -1
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}
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# PPC currently needs a minimum window width of 90 to work correctly.
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set tui_asm_window_width 90
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Term::clean_restart 24 ${tui_asm_window_width} $testfile
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if {![Term::prepare_for_tui]} {
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unsupported "TUI not supported"
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return
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}
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# Helper proc, returns a count of the ' ' characters in STRING.
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proc count_whitespace { string } {
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return [expr {[llength [split $string { }]] - 1}]
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}
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# This puts us into TUI mode, and should display the ASM window.
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Term::command_no_prompt_prefix "layout asm"
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Term::check_box_contents "check asm box contents" 0 0 ${tui_asm_window_width} 15 "<main>"
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# Scroll the ASM window down using the down arrow key. In an ideal
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# world we'd like to use PageDown here, but currently our terminal
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# library doesn't support such advanced things.
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set testname "scroll to end of assembler"
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set down_count 0
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while (1) {
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# Grab the second line, this is about to become the first line.
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set line [Term::get_line 2]
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# Except, if the second line is blank then we are at the end of
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# the available asm output. Pressing down again _shouldn't_
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# change the output, however, if GDB is working, and we press down
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# then the screen won't change, so the call to Term::wait_for
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# below will just timeout. So for now we avoid testing the edge
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# case.
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if {[regexp -- "^\\| +\\|$" $line]} {
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# Second line is blank, we're at the end of the assembler.
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pass $testname
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break
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}
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# Send the down key to GDB.
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send_gdb "\033\[B"
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incr down_count
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set re_line [string_to_regexp $line]
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# Ignore whitespace mismatches.
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regsub -all {\s+} $re_line {\s+} re_line
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if {[Term::wait_for $re_line] \
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&& [regexp $re_line [Term::get_line 1]]} {
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# We scrolled successfully.
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} else {
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if {[count_whitespace ${line}] != \
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[count_whitespace [Term::get_line 1]]} {
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# GDB's TUI assembler display will widen columns based on
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# the longest item that appears in a column on any line.
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# As we have just scrolled, and so revealed a new line, it
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# is possible that the width of some columns has changed.
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#
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# As a result it is possible that part of the line we were
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# expected to see in the output is now off the screen. And
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# this test will fail.
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#
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# This is unfortunate, but, right now, there's no easy way
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# to "lock" the format of the TUI assembler window. The
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# only option appears to be making the window width wider,
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# this can be done by adjusting TUI_ASM_WINDOW_WIDTH.
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verbose -log "WARNING: The following failure is probably due to the TUI window"
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verbose -log " width. See the comments in the test script for more"
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verbose -log " details."
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}
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fail "$testname (scroll failed)"
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Term::dump_screen
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break
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}
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if { $down_count > 250 } {
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# Maybe we should accept this as a pass in case a target
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# really does have loads of assembler to scroll through.
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fail "$testname (too much assembler)"
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Term::dump_screen
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break
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}
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}
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