diff options
Diffstat (limited to 'gdb/testsuite/gdb.base/term.exp')
| -rw-r--r-- | gdb/testsuite/gdb.base/term.exp | 81 |
1 files changed, 70 insertions, 11 deletions
diff --git a/gdb/testsuite/gdb.base/term.exp b/gdb/testsuite/gdb.base/term.exp index 031a50b703b..77307894e04 100644 --- a/gdb/testsuite/gdb.base/term.exp +++ b/gdb/testsuite/gdb.base/term.exp @@ -13,6 +13,9 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. +# Test that GDB saves and restores terminal settings correctly. Also check +# the output of the "info terminal" command. + if { [prepare_for_testing "failed to prepare" term term.c] } { return -1 } @@ -20,28 +23,84 @@ if { [prepare_for_testing "failed to prepare" term term.c] } { # Once before running the program. gdb_test "info terminal" \ "No saved terminal information.*" \ - "test info terminal" + "test info terminal pre-execution" -if ![runto_main] then { - fail "can't run to main" +if ![runto break_here] then { + fail "can't run to break_here" return 0 } -# Once while the program is running and stopped. +# Read the inferior's terminal settings, saved in the T global variable. + +proc read_term_settings_from_inferior {} { + set termios(c_iflag) [get_hexadecimal_valueof "t.c_iflag" oops] + set termios(c_oflag) [get_hexadecimal_valueof "t.c_oflag" oops] + set termios(c_cflag) [get_hexadecimal_valueof "t.c_cflag" oops] + set termios(c_lflag) [get_hexadecimal_valueof "t.c_lflag" oops] + + return [array get termios] +} + +# Validate that gdb's notion of the inferior's terminal settings are consistent +# with the values read from the inferior. + +proc compare_gdb_and_inferior_settings { t } { + global decimal + array set termios $t + + gdb_test "info terminal" \ + [multi_line "Inferior's terminal status .currently saved by GDB.:" \ + "File descriptor flags = .*" \ + "Process group = $decimal" \ + "c_iflag = ${termios(c_iflag)}, c_oflag = ${termios(c_oflag)}," \ + "c_cflag = ${termios(c_cflag)}, c_lflag = ${termios(c_lflag)}.*" ] +} -# While only native targets save terminal status, we still test -# everywhere to make sure that the command doesn't misbehave. if {[target_info gdb_protocol] == ""} { - set term_re "Inferior's terminal status .currently saved by GDB.:.*" + # Record the initial terminal settings. Verify that GDB's version of the + # inferior's terminal settings is right. + with_test_prefix "initial" { + array set termios1 [read_term_settings_from_inferior] + compare_gdb_and_inferior_settings [array get termios1] + } + + # Continue until after the inferior removes ECHO from its terminal settings. + gdb_continue_to_breakpoint "continue until after tcsetattr" + + # After the inferior has changed its terminal settings, check that GDB's + # saved version reflects the new settings correctly. + with_test_prefix "post tcsetattr" { + array set termios2 [read_term_settings_from_inferior] + compare_gdb_and_inferior_settings [array get termios2] + + # Make sure that the current settings are different than the initial + # settings... otherwise this test is meaningless. + gdb_assert {${termios1(c_lflag)} != ${termios2(c_lflag)}} + } + + # Continue again... + gdb_continue_to_breakpoint "continue again" + + # ... and verify again, to validate that when resuming, GDB restored the + # inferior's terminal settings correctly. + with_test_prefix "after last resume" { + array set termios3 [read_term_settings_from_inferior] + compare_gdb_and_inferior_settings [array get termios3] + gdb_assert {${termios2(c_iflag)} == ${termios3(c_iflag)}} + gdb_assert {${termios2(c_oflag)} == ${termios3(c_oflag)}} + gdb_assert {${termios2(c_cflag)} == ${termios3(c_cflag)}} + gdb_assert {${termios2(c_lflag)} == ${termios3(c_lflag)}} + } } else { - set term_re "No saved terminal information\\." + # While only native targets save terminal status, we still test + # that the command doesn't misbehave. + gdb_test "info terminal" "No saved terminal information\\." "info terminal at breakpoint" } -gdb_test "info terminal" $term_re "info terminal at breakpoint" - +delete_breakpoints gdb_continue_to_end # One last time after the program having exited. gdb_test "info terminal" \ "No saved terminal information.*" \ - "test info terminal #2" + "test info terminal post-execution" |