| # Copyright 1997-2024 Free Software Foundation, Inc. |
| |
| # This program is free software; you can redistribute it and/or modify |
| # it under the terms of the GNU General Public License as published by |
| # the Free Software Foundation; either version 3 of the License, or |
| # (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| # display.exp Test display commands |
| # Also do some printing stuff for coverage's sake. |
| # |
| |
| # The allow_hw_watchpoint_tests checks if watchpoints are supported by the |
| # processor. On PowerPC, the check runs a small test program under gdb |
| # to determine if the Power processor supports HW watchpoints. The check |
| # must be done before starting the test so as to not disrupt the execution |
| # of the actual test. |
| |
| set allow_hw_watchpoint_tests_p [allow_hw_watchpoint_tests] |
| |
| standard_testfile |
| |
| if {[prepare_for_testing "failed to prepare" $testfile $srcfile \ |
| {debug nowarnings}]} { |
| return -1 |
| } |
| |
| # Preserve the old timeout, and set a new one that should be |
| # sufficient to avoid timing out during this test. |
| set oldtimeout $timeout |
| set timeout [expr "$timeout + 60"] |
| verbose "Timeout is now $timeout seconds" 2 |
| |
| # use this to debug: |
| #log_user 1 |
| |
| # Some coverage stuff |
| # |
| if !$use_gdb_stub { |
| gdb_test "kill" ".*The program is not being run.*" |
| gdb_test "detach" ".*" |
| gdb_test "run" ".*" |
| |
| gdb_load ${binfile} |
| gdb_test "kill" ".*" "kill again" |
| gdb_test "detach" ".*" "detach again" |
| |
| clean_restart $binfile |
| } |
| |
| # Ok, on to real life |
| # |
| if {![runto_main]} { |
| return |
| } |
| |
| # Disable hardware watchpoints if necessary. |
| if {!$allow_hw_watchpoint_tests_p} { |
| gdb_test_no_output "set can-use-hw-watchpoints 0" "" |
| } |
| |
| set bp_location1 [gdb_get_line_number "set breakpoint 1 here"] |
| gdb_test "break $bp_location1" ".*Breakpoint 2.*" "break do_loops" |
| gdb_test "cont" ".*Breakpoint 2, do_loops.*" "get to do_loops" |
| |
| # Create stopping points. |
| # |
| gdb_test "watch sum" ".*\[Ww\]atchpoint 3: sum.*" "set watch" |
| set bp_location2 [gdb_get_line_number "set breakpoint 2 here"] |
| gdb_test "break $bp_location2" ".*Breakpoint 4.*" "break loop end" |
| |
| # Create displays for those points |
| # |
| gdb_test "info disp" ".*There are no auto-display expressions now..*" "inf disp" |
| gdb_test "disp i" ".*1: i = 0.*" "display i" |
| gdb_test "disp/x j" ".*2: /x j = 0x0.*" "display j" |
| gdb_test "disp/i &k" ".*3: x/i &k(\r\n| ) $hex:.*" "display &k" |
| gdb_test "disp/f f" ".*4: /f f = 3.1415*" "display/f f" |
| gdb_test "disp/s &sum" ".*5: x/s &sum $hex.*sum.:.*" "display/s &sum" |
| |
| # Hit the displays |
| # |
| gdb_test "cont" [multi_line \ |
| ".*\[Ww\]atchpoint 3: sum.*" \ |
| "\[1-9\]*: i = 0.*" \ |
| "\[1-9\]*: /x j = 0x0" \ |
| "\[1-9\]*: x/i &k.*" \ |
| "\[1-9\]*: /f f = 3.1415" \ |
| "\[1-9\]*: x/s &sum.*" \ |
| ] "first disp" |
| |
| gdb_test "cont" [multi_line \ |
| ".*\[Ww\]atchpoint 3: sum.*" \ |
| "\[1-9\]*: i = 0.*" \ |
| "\[1-9\]*: /x j = 0x0.*" \ |
| "\[1-9\]*: x/i &k.*" \ |
| "\[1-9\]*: /f f = 4.1415" \ |
| "\[1-9\]*: x/s &sum.*" \ |
| ] "second disp" |
| |
| gdb_test "enab disp 6" ".*No display number 6..*" "catch err" |
| gdb_test_no_output "disab disp 1" "disab disp 1" |
| gdb_test_no_output "disab disp 2" "disab disp 2" |
| gdb_test_no_output "enab disp 1" "re-enab" |
| gdb_test_no_output "enab disp 1" "re-enab of enab" |
| gdb_test_no_output "undisp 5" "undisp" |
| gdb_test "info disp" [multi_line \ |
| "Auto-display expressions now in effect.*" \ |
| ".*y i" \ |
| ".*n /x j" \ |
| ".*y /1bi &k" \ |
| ".*y /f f" \ |
| ] |
| |
| gdb_test "cont" [multi_line \ |
| ".*\[Ww\]atch.*" \ |
| ".*i = 0" \ |
| ".*5.1415" \ |
| ] "next hit" |
| |
| gdb_test "undisp" \ |
| "" \ |
| "undisp all" \ |
| ".*Delete all auto-display expressions.*y or n. $" \ |
| "y" |
| |
| |
| # Test displaying a variable that is temporarily at a bad address. |
| # But if we can examine what's at memory address 0, then we'll also be |
| # able to display it without error. Don't run the test in that case. |
| set can_read_0 [is_address_zero_readable] |
| |
| if { !$can_read_0 } { |
| gdb_test "disp *p_i" ".*: \\*p_i = 0" |
| gdb_test "p p_i = 0x0" " = \\(int \\*\\) 0x0" |
| gdb_test "display" ".*: \\*p_i = <error: .*>" "display bad address" |
| gdb_test "p p_i = &i" " = \\(int \\*\\) $hex" |
| gdb_test "display" ".*: \\*p_i = 0" "display good address" |
| |
| gdb_test "undisp" \ |
| "" \ |
| "undisp all again" \ |
| ".*Delete all auto-display expressions.*y or n. $" \ |
| "y" |
| } |
| |
| gdb_test "disab 3" ".*.*" |
| gdb_test "cont" ".*Breakpoint 4.*" "watch off" |
| |
| # Now the printf tests |
| # |
| # The "finish" command may leave us mid-line in the caller on some |
| # targets, including but not limited to the m68k, i386 & PA. So we |
| # have to arrange to step until we hit the line with the call to |
| # "do_vars". |
| gdb_test_multiple "finish" "finish" { |
| -re ".*do_loops\\(\\);.*$gdb_prompt $" { |
| send_gdb "step\n" |
| exp_continue |
| } |
| -re ".*do_vars.*$gdb_prompt $" { |
| pass "finish" |
| } |
| } |
| |
| gdb_test "step" ".*do_vars.*.*i = 9.*" |
| set bp_location3 [gdb_get_line_number "set breakpoint 3 here"] |
| gdb_test "tbreak $bp_location3" ".*breakpoint 5 a.*" "tbreak in do_vars" |
| gdb_test "cont" ".*do_vars.*$bp_location3.*$bp_location3.*" |
| |
| # Beat on printf a bit |
| # |
| gdb_test "printf" ".*Argument required.*" |
| gdb_test "printf %d" ".*Bad format string, missing.*" |
| gdb_test "printf \"%d" ".*Bad format string, non-terminated.*" |
| gdb_test "printf \"%d%d\",i" ".*Wrong number of arguments.*" |
| gdb_test "printf \"\\\\!\\a\\f\\r\\t\\v\\b\\n\"" ".*!.*" |
| gdb_test_no_output "printf \"\"" "re-set term" |
| gdb_test "printf \"\\w\"" ".*Unrecognized escape character.*" |
| gdb_test "printf \"%d\" j" ".*Invalid argument syntax.*" |
| gdb_test "printf \"%p\\n\", 0" "\\(nil\\)" |
| gdb_test "printf \"%p\\n\", 1" "0x1" |
| |
| # play with "print", too |
| # |
| gdb_test "print/k j" ".*Undefined output format.*" |
| gdb_test "print/d j" " = 0" "debug test output 1" |
| gdb_test "print/r j" " = 0" "debug test output 1a" |
| gdb_test "print/x j" " = 0x0" "debug test output 2" |
| gdb_test "print/r j" " = 0x0" "debug test output 2a" |
| gdb_test "print j" " = 0" "debug test output 3" |
| |
| # x/0 j doesn't produce any output and terminates PA64 process when testing |
| gdb_test_no_output "x/0 j" |
| |
| # For when the test is built in C++ mode. |
| gdb_test_no_output "set print asm-demangle on" |
| |
| gdb_test "print/0 j" ".*Item count other than 1 is meaningless.*" |
| gdb_test "print/s sum" " = 1000" "ignored s" |
| gdb_test "print/i sum" ".*Format letter.*is meaningless.*.*" "no i" |
| gdb_test "print/a &sum" ".*= $hex.*<sum>.*" |
| # If the constant below is larger than the length of main, then |
| # this test will (incorrectly) fail. So use a small number. |
| gdb_test "print/a main+4" ".*= $hex.*<.*>.*" |
| gdb_test "print/a \$pc" ".*= $hex.*<do_vars+.*>.*" |
| gdb_test "print/a &&j" ".*A .* error in expression.*" |
| |
| # Done! |
| # |
| gdb_exit |
| |
| # Restore the preserved old timeout value. |
| set timeout $oldtimeout |
| verbose "Timeout is now $timeout seconds" 2 |
