Daniel Malea | 094881f | 2011-12-14 17:39:16 -0500 | [diff] [blame] | 1 | #!/usr/bin/perl |
| 2 | #===-- test_bcc_debuginfo.pl - Debugger integration test driver script ---===# |
| 3 | # |
| 4 | # The LLVM Compiler Infrastructure |
| 5 | # |
| 6 | # This file is distributed under the University of Illinois Open Source |
| 7 | # License. See LICENSE.TXT for details. |
| 8 | # |
| 9 | #===----------------------------------------------------------------------===# |
| 10 | # |
| 11 | # This script tests debugging information generated by a compiler. |
| 12 | # Input arguments |
| 13 | # - Path to FileCheck tool. |
| 14 | # - Input source program. Usually this source file is decorated using |
| 15 | # special comments (//DEBUGGER:, //CHECK:)to communicate debugger commands. |
| 16 | # - Executable file. This file is generated by the compiler. |
| 17 | # |
| 18 | # This perl script extracts debugger commands from input source program |
| 19 | # comments in a script. A debugger is used to load the executable file |
| 20 | # and run the script generated from source program comments. Finally, |
| 21 | # the debugger output is checked, using FileCheck, to validate |
| 22 | # debugging information. |
| 23 | # |
| 24 | #===----------------------------------------------------------------------===# |
| 25 | |
| 26 | use File::Basename; |
| 27 | |
| 28 | my $filecheck_tool = $ARGV[0]; |
| 29 | my $testcase_file = $ARGV[1]; |
| 30 | my $testcase_output = $ARGV[2]; |
| 31 | |
| 32 | my $input_filename = basename $testcase_file; |
| 33 | my $output_dir = dirname $testcase_output; |
| 34 | |
| 35 | my $debugger_script_file = "$output_dir/$input_filename.debugger.script"; |
| 36 | my $output_file = "$output_dir/$input_filename.gdb.output"; |
| 37 | |
| 38 | open(OUTPUT, ">$debugger_script_file"); |
| 39 | |
| 40 | # Enable extra verbosity in GDB |
| 41 | print OUTPUT "set verbose on\n"; |
| 42 | |
| 43 | # Extract debugger commands from testcase. They are marked with DEBUGGER: |
| 44 | # at the beginning of a comment line. |
| 45 | open(INPUT, $testcase_file); |
| 46 | while(<INPUT>) { |
| 47 | my($line) = $_; |
| 48 | $i = index($line, "DEBUGGER:"); |
| 49 | if ( $i >= 0) { |
| 50 | $l = length("DEBUGGER:"); |
| 51 | $s = substr($line, $i + $l); |
| 52 | $s =~ s/\%s/$input_filename/g; |
| 53 | $s =~ s/\%t/$testcase_output/g; |
| 54 | print OUTPUT "$s"; |
| 55 | } |
| 56 | } |
| 57 | print OUTPUT "\n"; |
| 58 | print OUTPUT "quit\n"; |
| 59 | close(INPUT); |
| 60 | close(OUTPUT); |
| 61 | |
| 62 | # setup debugger and debugger options to run a script. |
| 63 | my $debugger = $ENV{'DEBUGGER'}; |
| 64 | my $debugger_options = $ENV{'DEBUGGER_ARGS'}; |
| 65 | if (!$debugger) { |
| 66 | print "Please set DEBUGGER prior to using this script"; |
| 67 | exit 1; |
| 68 | } |
| 69 | $debugger_options = "-x $debugger_script_file $debugger_options $testcase_output"; |
| 70 | |
| 71 | # run debugger and capture output. |
| 72 | system("$debugger $debugger_options > $output_file 2>&1") ; |
| 73 | if ($?>>8 != 0) { |
| 74 | print "Error during debugger invocation. Command used was: \n"; |
| 75 | print("$debugger $debugger_options > $output_file 2>&1\n") ; |
| 76 | exit 1; |
| 77 | } |
| 78 | |
| 79 | # validate output. |
| 80 | system("$filecheck_tool", "-input-file", "$output_file", "$testcase_file"); |
| 81 | if ($?>>8 != 0) { |
| 82 | print "Error during verification. Debugger command used was: \n"; |
| 83 | print("$debugger $debugger_options > $output_file 2>&1\n") ; |
| 84 | print "Verification command used was: \n"; |
| 85 | print "$filecheck_tool -input-file $output_file $testcase_file\n"; |
| 86 | exit 1; |
| 87 | } |
| 88 | else { |
| 89 | exit 0; |
| 90 | } |