105 lines
4 KiB
Text
105 lines
4 KiB
Text
# Copyright 1988-2022 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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# Test that GDB saves and restores terminal settings correctly. Also check
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# the output of the "info terminal" command.
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if { [prepare_for_testing "failed to prepare" term term.c] } {
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return -1
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}
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# Once before running the program.
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gdb_test "info terminal" \
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"No saved terminal information.*" \
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"test info terminal pre-execution"
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if ![runto break_here] then {
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return 0
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}
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# Read the inferior's terminal settings, saved in the T global variable.
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proc read_term_settings_from_inferior {} {
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set termios(c_iflag) [get_hexadecimal_valueof "t.c_iflag" oops]
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set termios(c_oflag) [get_hexadecimal_valueof "t.c_oflag" oops]
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set termios(c_cflag) [get_hexadecimal_valueof "t.c_cflag" oops]
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set termios(c_lflag) [get_hexadecimal_valueof "t.c_lflag" oops]
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return [array get termios]
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}
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# Validate that gdb's notion of the inferior's terminal settings are consistent
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# with the values read from the inferior.
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proc compare_gdb_and_inferior_settings { t } {
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global decimal
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array set termios $t
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gdb_test "info terminal" \
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[multi_line "Inferior's terminal status .currently saved by GDB.:" \
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"File descriptor flags = .*" \
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"Process group = $decimal" \
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"c_iflag = ${termios(c_iflag)}, c_oflag = ${termios(c_oflag)}," \
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"c_cflag = ${termios(c_cflag)}, c_lflag = ${termios(c_lflag)}.*" ]
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}
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if {[target_info gdb_protocol] == ""} {
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# Record the initial terminal settings. Verify that GDB's version of the
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# inferior's terminal settings is right.
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with_test_prefix "initial" {
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array set termios1 [read_term_settings_from_inferior]
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compare_gdb_and_inferior_settings [array get termios1]
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}
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# Continue until after the inferior removes ECHO from its terminal settings.
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gdb_continue_to_breakpoint "continue until after tcsetattr"
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# After the inferior has changed its terminal settings, check that GDB's
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# saved version reflects the new settings correctly.
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with_test_prefix "post tcsetattr" {
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array set termios2 [read_term_settings_from_inferior]
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compare_gdb_and_inferior_settings [array get termios2]
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# Make sure that the current settings are different than the initial
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# settings... otherwise this test is meaningless.
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gdb_assert {${termios1(c_lflag)} != ${termios2(c_lflag)}}
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}
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# Continue again...
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gdb_continue_to_breakpoint "continue again"
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# ... and verify again, to validate that when resuming, GDB restored the
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# inferior's terminal settings correctly.
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with_test_prefix "after last resume" {
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array set termios3 [read_term_settings_from_inferior]
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compare_gdb_and_inferior_settings [array get termios3]
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gdb_assert {${termios2(c_iflag)} == ${termios3(c_iflag)}}
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gdb_assert {${termios2(c_oflag)} == ${termios3(c_oflag)}}
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gdb_assert {${termios2(c_cflag)} == ${termios3(c_cflag)}}
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gdb_assert {${termios2(c_lflag)} == ${termios3(c_lflag)}}
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}
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} else {
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# While only native targets save terminal status, we still test
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# that the command doesn't misbehave.
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gdb_test "info terminal" "No saved terminal information\\." "info terminal at breakpoint"
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}
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delete_breakpoints
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gdb_continue_to_end
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# One last time after the program having exited.
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gdb_test "info terminal" \
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"No saved terminal information.*" \
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"test info terminal post-execution"
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