| # This testcase is part of GDB, the GNU debugger. |
| # |
| # Copyright 2013 Free Software Foundation, Inc. |
| # |
| # Contributed by Intel Corp. <christian.himpel@intel.com> |
| # |
| # 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/>. |
| |
| # check for btrace support |
| if { [skip_btrace_tests] } { return -1 } |
| |
| # compile and run to main |
| standard_testfile .c .S |
| if [prepare_for_testing $testfile.exp $testfile "$srcfile $srcfile2" {debug}] { |
| return -1 |
| } |
| if ![runto_main] { |
| return -1 |
| } |
| |
| # set bp before loop and continue |
| set bp_location [gdb_get_line_number "bp.1" $srcfile2] |
| gdb_breakpoint $srcfile2:$bp_location |
| gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" |
| |
| # start btrace |
| gdb_test_no_output "record btrace" |
| |
| # set bp after loop and continue |
| set bp_location [gdb_get_line_number "bp.2" $srcfile2] |
| gdb_breakpoint $srcfile2:$bp_location |
| gdb_continue_to_breakpoint "cont to $bp_location" ".*$srcfile2:$bp_location.*" |
| |
| # The following test cases test if "browsing" through the |
| # instruction history works as expected. So for the tests |
| # it is necessary to count the number of lines that are |
| # shown by the "record instruction-history" command. |
| |
| set testname "determine number of recorded instructions" |
| gdb_test_multiple "info record" $testname { |
| -re "Active record target: record-btrace\r\nRecorded \(\[0-9\]*\) instructions in \(\[0-9\]*\) functions for thread 1 .*\\.\r\n$gdb_prompt $" { |
| set traced $expect_out(1,string) |
| set traced_functions $expect_out(2,string) |
| pass $testname |
| } |
| } |
| |
| # we have exactly 7 instructions here |
| set message "exactly 7 instructions" |
| if { $traced != 7 } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| # test that we see the expected instructions |
| gdb_test "record instruction-history 1,6" " |
| 1\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 2\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax\r |
| 3\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 4\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r |
| 5\t 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" |
| |
| gdb_test "record instruction-history /f 1,+5" " |
| 1\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 2\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax\r |
| 3\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 4\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r |
| 5\t 0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" |
| |
| gdb_test "record instruction-history /p 6,-5" " |
| 1\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 2\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tdec %eax\r |
| 3\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 4\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r |
| 5\t0x\[0-9a-f\]+ <loop\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" |
| |
| gdb_test "record instruction-history /pf 1,6" " |
| 1\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 2\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tdec %eax\r |
| 3\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tjmp 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r |
| 4\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tcmp \\\$0x0,%eax\r |
| 5\t0x\[0-9a-f\]+ <\\+\[0-9\]+>:\tje 0x\[0-9a-f\]+ <loop\\+\[0-9\]+>\r" |
| |
| # the following tests are checking the iterators |
| # to avoid lots of regexps, we just check the number of lines that |
| # were printed during command execution. |
| |
| # test_lines_output returns the output lines from command as a list. |
| proc test_lines_output { command message } { |
| global gdb_prompt |
| set message "test_lines_output: $message" |
| gdb_test_multiple $command $message { |
| -re "\n\(.*\)\r\n$gdb_prompt $" { |
| return [split [string trim $expect_out(1,string)] "\n"] |
| } |
| } |
| } |
| |
| # test_lines_length returns the number of lines from command. |
| proc test_lines_length { command message } { |
| return [llength [test_lines_output $command $message]] |
| } |
| |
| # show instruction history with unlimited size, we expect to see |
| # all $traced instructions |
| gdb_test_no_output "set record instruction-history-size 0" |
| set message "record instruction-history - unlimited" |
| set lines [test_lines_length "record instruction-history 0" $message] |
| if { $traced != $lines } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| gdb_test_no_output "set record instruction-history-size $traced" |
| set message "record instruction-history - traced" |
| set lines [test_lines_length "record instruction-history 0" $message] |
| if { $traced != $lines } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| # test that the iterator works |
| set history_size 3 |
| gdb_test_no_output "set record instruction-history-size $history_size" |
| set message "browse history forward start" |
| set lines [test_lines_length "record instruction-history 0" $message] |
| if { $lines != $history_size } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| set message "browse history forward middle" |
| set lines [test_lines_length "record instruction-history +" $message] |
| if { $lines != $history_size } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| set message "browse history forward last" |
| set lines [test_lines_length "record instruction-history +" $message] |
| if { $lines != 1 } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 1" |
| |
| # make sure we cannot move further |
| gdb_test "record instruction-history" "At the end of the branch trace record\\." "browse history forward beyond 2" |
| |
| set message "browse history backward last" |
| set lines [test_lines_length "record instruction-history -" $message] |
| if { $lines != $history_size } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| set message "browse history backward middle" |
| set lines [test_lines_length "record instruction-history -" $message] |
| if { $lines != $history_size } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| set message "browse history backward first" |
| set lines [test_lines_length "record instruction-history -" $message] |
| if { $lines != 1 } { |
| fail $message |
| } else { |
| pass $message |
| } |
| |
| gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 1" |
| |
| # make sure we cannot move further back |
| gdb_test "record instruction-history -" "At the start of the branch trace record\\." "browse history backward beyond 2" |
