3 ##--------------------------------------------------------------------##
4 ##--- Cachegrind's annotator. cg_annotate.in ---##
5 ##--------------------------------------------------------------------##
7 # This file is part of Cachegrind, a Valgrind tool for cache
10 # Copyright (C) 2002-2017 Nicholas Nethercote
13 # This program is free software; you can redistribute it and/or
14 # modify it under the terms of the GNU General Public License as
15 # published by the Free Software Foundation; either version 2 of the
16 # License, or (at your option) any later version.
18 # This program is distributed in the hope that it will be useful, but
19 # WITHOUT ANY WARRANTY; without even the implied warranty of
20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 # General Public License for more details.
23 # You should have received a copy of the GNU General Public License
24 # along with this program; if not, write to the Free Software
25 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
28 # The GNU General Public License is contained in the file COPYING.
30 #----------------------------------------------------------------------------
31 # The file format is simple, basically printing the cost centre for every
32 # source line, grouped by files and functions. The details are in
33 # Cachegrind's manual.
35 #----------------------------------------------------------------------------
36 # Performance improvements record, using cachegrind.out for cacheprof, doing no
37 # source annotation (irrelevant ones removed):
39 # 1. turned off warnings in add_hash_a_to_b() 3.81 --> 3.48s
40 # [now add_array_a_to_b()]
41 # 6. make line_to_CC() return a ref instead of a hash 3.01 --> 2.77s
43 #10. changed file format to avoid file/fn name repetition 2.40s
44 # (not sure why higher; maybe due to new '.' entries?)
45 #11. changed file format to drop unnecessary end-line "."s 2.36s
46 # (shrunk file by about 37%)
47 #12. switched from hash CCs to array CCs 1.61s
48 #13. only adding b[i] to a[i] if b[i] defined (was doing it if
49 # either a[i] or b[i] was defined, but if b[i] was undefined
50 # it just added 0) 1.48s
51 #14. Stopped converting "." entries to undef and then back 1.16s
52 #15. Using foreach $i (x..y) instead of for ($i = 0...) in
53 # add_array_a_to_b() 1.11s
55 # Auto-annotating primes:
56 #16. Finding count lengths by int((length-1)/3), not by
57 # commifying (halves the number of commify calls) 1.68s --> 1.47s
62 #----------------------------------------------------------------------------
63 # Overview: the running example in the comments is for:
67 #----------------------------------------------------------------------------
69 #----------------------------------------------------------------------------
70 # Global variables, main data structures
71 #----------------------------------------------------------------------------
72 # CCs are arrays, the counts corresponding to @events, with 'undef'
73 # representing '.'. This makes things fast (faster than using hashes for CCs)
74 # but we have to use @sort_order and @show_order below to handle the --sort and
75 # --show options, which is a bit tricky.
76 #----------------------------------------------------------------------------
78 # Total counts for summary (an array reference).
81 # Totals for each function, for overall summary.
82 # hash(filename:fn_name => CC array)
85 # Individual CCs, organised by filename and line_num for easy annotation.
86 # hash(filename => hash(line_num => CC array))
89 # Files chosen for annotation on the command line.
90 # key = basename (trimmed of any directory), value = full filename
93 # Generic description string.
96 # Command line of profiled program.
99 # Events in input file, eg. (A,B,C,D)
102 # Events to show, from command line, eg. (C,A,D)
105 # Map from @show_events indices to @events indices, eg. (2,0,3). Gives the
106 # order in which we must traverse @events in order to show the @show_events,
107 # eg. (@events[$show_order[1]], @events[$show_order[2]]...) = @show_events.
108 # (Might help to think of it like a hash (0 => 2, 1 => 0, 2 => 3).)
111 # Print out the function totals sorted by these events, eg. (D,C).
114 # Map from @sort_events indices to @events indices, eg. (3,2). Same idea as
118 # Thresholds, one for each sort event (or default to 1 if no sort events
119 # specified). We print out functions and do auto-annotations until we've
120 # handled this proportion of all the events thresholded.
123 my $default_threshold = 0.1;
125 my $single_threshold = $default_threshold;
127 # If on, show a percentage for each non-zero count.
130 # If on, automatically annotates all files that are involved in getting over
131 # all the threshold counts.
132 my $auto_annotate = 0;
134 # Number of lines to show around each annotated line.
137 # Directories in which to look for annotation files.
138 my @include_dirs = ("");
141 my $input_file = undef;
144 my $version = "@VERSION@";
148 usage: cg_annotate [options] cachegrind-out-file [source-files...]
150 options for the user, with defaults in [ ], are:
151 -h --help show this message
152 --version show version
153 --show=A,B,C only show figures for events A,B,C [all]
154 --sort=A,B,C sort columns by events A,B,C [event column order]
155 --threshold=<0--20> a function is shown if it accounts for more than x% of
156 the counts of the primary sort event [$default_threshold]
157 --show-percs=yes|no show a percentage for each non-zero count
158 --auto=yes|no annotate all source files containing functions
159 that helped reach the event count threshold [no]
160 --context=N print N lines of context before and after
162 -I<d> --include=<d> add <d> to list of directories to search for
165 cg_annotate is Copyright (C) 2002-2017 Nicholas Nethercote.
166 and licensed under the GNU General Public License, version 2.
167 Bug reports, feedback, admiration, abuse, etc, to: njn\@valgrind.org.
172 # Used in various places of output.
173 my $fancy = '-' x 80 . "\n";
178 return ($y == 0 ? 0 : $x / $y);
181 #-----------------------------------------------------------------------------
182 # Argument and option handling
183 #-----------------------------------------------------------------------------
184 sub process_cmd_line()
186 for my $arg (@ARGV) {
192 if ($arg =~ /^--version$/) {
193 die("cg_annotate-$version\n");
196 } elsif ($arg =~ /^--show=(.*)$/) {
197 @show_events = split(/,/, $1);
200 # Nb: You can specify thresholds individually, eg.
201 # --sort=A:99,B:95,C:90. These will override any --threshold
203 } elsif ($arg =~ /^--sort=(.*)$/) {
204 @sort_events = split(/,/, $1);
205 my $th_specified = 0;
206 foreach my $i (0 .. scalar @sort_events - 1) {
207 if ($sort_events[$i] =~ /.*:([\d\.]+)%?$/) {
209 ($th >= 0 && $th <= 100) or die($usage);
210 $sort_events[$i] =~ s/:.*//;
211 $thresholds[$i] = $th;
217 if (not $th_specified) {
221 # --threshold=X (tolerates a trailing '%')
222 } elsif ($arg =~ /^--threshold=([\d\.]+)%?$/) {
223 $single_threshold = $1;
224 ($1 >= 0 && $1 <= 20) or die($usage);
226 # --show-percs=yes|no
227 } elsif ($arg =~ /^--show-percs=yes$/) {
229 } elsif ($arg =~ /^--show-percs=no$/) {
233 } elsif ($arg =~ /^--auto=yes$/) {
235 } elsif ($arg =~ /^--auto=no$/) {
239 } elsif ($arg =~ /^--context=([\d\.]+)$/) {
245 # We don't handle "-I name" -- there can be no space.
246 } elsif ($arg =~ /^-I$/) {
247 die("Sorry, no space is allowed after a -I flag\n");
249 # --include=A,B,C. Allow -I=name for backwards compatibility.
250 } elsif ($arg =~ /^(-I=|-I|--include=)(.*)$/) {
252 $inc =~ s|/$||; # trim trailing '/'
253 push(@include_dirs, "$inc/");
255 } else { # -h and --help fall under this case
259 # Argument handling -- annotation file checking and selection.
260 # Stick filenames into a hash for quick 'n easy lookup throughout.
262 if (not defined $input_file) {
263 # First non-option argument is the output file.
266 # Subsequent non-option arguments are source files.
268 foreach my $include_dir (@include_dirs) {
269 if (-r $include_dir . $arg) {
273 $readable or die("File $arg not found in any of: @include_dirs\n");
274 $user_ann_files{$arg} = 1;
279 # Must have chosen an input file
280 if (not defined $input_file) {
285 #-----------------------------------------------------------------------------
286 # Reading of input file
287 #-----------------------------------------------------------------------------
291 return ($x > $y ? $x : $y);
294 # Add the two arrays; any '.' entries are ignored. Two tricky things:
295 # 1. If $a2->[$i] is undefined, it defaults to 0 which is what we want; we turn
296 # off warnings to allow this. This makes things about 10% faster than
297 # checking for definedness ourselves.
298 # 2. We don't add an undefined count or a ".", even though it's value is 0,
299 # because we don't want to make an $a2->[$i] that is undef become 0
301 sub add_array_a_to_b ($$)
305 my $n = max(scalar @$a1, scalar @$a2);
307 foreach my $i (0 .. $n-1) {
308 $a2->[$i] += $a1->[$i] if (defined $a1->[$i] && "." ne $a1->[$i]);
313 # Add each event count to the CC array. '.' counts become undef, as do
314 # missing entries (implicitly).
317 my @CC = (split /\s+/, $_[0]);
318 (@CC <= @events) or die("Line $.: too many event counts\n");
322 sub read_input_file()
324 open(INPUTFILE, "< $input_file")
325 || die "Cannot open $input_file for reading\n";
327 # Read "desc:" lines.
329 while ($line = <INPUTFILE>) {
330 if ($line =~ s/desc:\s+//) {
337 # Read "cmd:" line (Nb: will already be in $line from "desc:" loop above).
338 ($line =~ s/^cmd:\s+//) or die("Line $.: missing command line\n");
340 chomp($cmd); # Remove newline
342 # Read "events:" line. We make a temporary hash in which the Nth event's
343 # value is N, which is useful for handling --show/--sort options below.
345 (defined $line && $line =~ s/^events:\s+//)
346 or die("Line $.: missing events line\n");
347 @events = split(/\s+/, $line);
350 foreach my $event (@events) {
351 $events{$event} = $n;
355 # If no --show arg give, default to showing all events in the file.
356 # If --show option is used, check all specified events appeared in the
357 # "events:" line. Then initialise @show_order.
359 foreach my $show_event (@show_events) {
360 (defined $events{$show_event}) or
361 die("--show event `$show_event' did not appear in input\n");
364 @show_events = @events;
366 foreach my $show_event (@show_events) {
367 push(@show_order, $events{$show_event});
370 # Do as for --show, but if no --sort arg given, default to sorting by
371 # column order (ie. first column event is primary sort key, 2nd column is
374 foreach my $sort_event (@sort_events) {
375 (defined $events{$sort_event}) or
376 die("--sort event `$sort_event' did not appear in input\n");
379 @sort_events = @events;
381 foreach my $sort_event (@sort_events) {
382 push(@sort_order, $events{$sort_event});
385 # If multiple threshold args weren't given via --sort, stick in the single
386 # threshold (either from --threshold if used, or the default otherwise) for
387 # the primary sort event, and 0% for the rest.
388 if (not @thresholds) {
389 foreach my $e (@sort_order) {
390 push(@thresholds, 100);
392 $thresholds[0] = $single_threshold;
396 my $currFileFuncName;
399 my $currFileCCs = {}; # hash(line_num => CC)
401 # Read body of input file.
402 while (<INPUTFILE>) {
403 s/#.*$//; # remove comments
404 if (s/^(-?\d+)\s+//) {
406 my $CC = line_to_CC($_);
407 defined($currFuncCC) || die;
408 add_array_a_to_b($CC, $currFuncCC);
410 # If currFileName is selected, add CC to currFileName list. We look for
411 # full filename matches; or, if auto-annotating, we have to
412 # remember everything -- we won't know until the end what's needed.
413 defined($currFileCCs) || die;
414 if ($auto_annotate || defined $user_ann_files{$currFileName}) {
415 my $currLineCC = $currFileCCs->{$lineNum};
416 if (not defined $currLineCC) {
418 $currFileCCs->{$lineNum} = $currLineCC;
420 add_array_a_to_b($CC, $currLineCC);
423 } elsif (s/^fn=(.*)$//) {
424 $currFileFuncName = "$currFileName:$1";
425 $currFuncCC = $fn_totals{$currFileFuncName};
426 if (not defined $currFuncCC) {
428 $fn_totals{$currFileFuncName} = $currFuncCC;
431 } elsif (s/^fl=(.*)$//) {
433 $currFileCCs = $allCCs{$currFileName};
434 if (not defined $currFileCCs) {
436 $allCCs{$currFileName} = $currFileCCs;
438 # Assume that a "fn=" line is followed by a "fl=" line.
439 $currFileFuncName = undef;
441 } elsif (s/^\s*$//) {
444 } elsif (s/^summary:\s+//) {
445 $summary_CC = line_to_CC($_);
446 (scalar(@$summary_CC) == @events)
447 or die("Line $.: summary event and total event mismatch\n");
450 warn("WARNING: line $. malformed, ignoring\n");
454 # Check if summary line was present
455 if (not defined $summary_CC) {
456 die("missing final summary line, aborting\n");
462 #-----------------------------------------------------------------------------
464 #-----------------------------------------------------------------------------
469 print("Command: $cmd\n");
470 print("Data file: $input_file\n");
471 print("Events recorded: @events\n");
472 print("Events shown: @show_events\n");
473 print("Event sort order: @sort_events\n");
474 print("Thresholds: @thresholds\n");
476 my @include_dirs2 = @include_dirs; # copy @include_dirs
477 shift(@include_dirs2); # remove "" entry, which is always the first
478 unshift(@include_dirs2, "") if (0 == @include_dirs2);
479 my $include_dir = shift(@include_dirs2);
480 print("Include dirs: $include_dir\n");
481 foreach my $include_dir (@include_dirs2) {
482 print(" $include_dir\n");
485 my @user_ann_files = keys %user_ann_files;
486 unshift(@user_ann_files, "") if (0 == @user_ann_files);
487 my $user_ann_file = shift(@user_ann_files);
488 print("User annotated: $user_ann_file\n");
489 foreach $user_ann_file (@user_ann_files) {
490 print(" $user_ann_file\n");
493 my $is_on = ($auto_annotate ? "on" : "off");
494 print("Auto-annotation: $is_on\n");
498 #-----------------------------------------------------------------------------
499 # Print summary and sorted function totals
500 #-----------------------------------------------------------------------------
505 # Iterate through sort events (eg. 3,2); return result if two are different
506 foreach my $i (@sort_order) {
510 $x = -1 unless defined $x;
511 $y = -1 unless defined $y;
513 my $cmp = abs($y) <=> abs($x); # reverse sort of absolute size
518 # Exhausted events, equal
524 1 while ($val =~ s/^(-?\d+)(\d{3})/$1,$2/);
528 # Because the counts can get very big, and we don't want to waste screen space
529 # and make lines too long, we compute exactly how wide each column needs to be
530 # by finding the widest entry for each one.
531 sub compute_CC_col_widths (@)
534 my $CC_col_widths = [];
536 # Initialise with minimum widths (from event names)
537 foreach my $event (@events) {
538 push(@$CC_col_widths, length($event));
541 # Find maximum width count for each column. @CC_col_width positions
542 # correspond to @CC positions.
543 foreach my $CC (@CCs) {
544 foreach my $i (0 .. scalar(@$CC)-1) {
545 if (defined $CC->[$i]) {
546 # Find length, accounting for commas that will be added, and
547 # possibly a percentage.
548 my $length = length $CC->[$i];
549 my $width = $length + int(($length - 1) / 3);
551 $width += 9; # e.g. " (12.34%)" is 9 chars
553 $CC_col_widths->[$i] = max($CC_col_widths->[$i], $width);
557 return $CC_col_widths;
560 # Print the CC with each column's size dictated by $CC_col_widths.
563 my ($CC, $CC_col_widths) = @_;
565 foreach my $i (@show_order) {
566 my $count = (defined $CC->[$i] ? commify($CC->[$i]) : ".");
570 if (defined $CC->[$i] && $CC->[$i] != 0) {
571 # Try our best to keep the number fitting into 5 chars. This
572 # requires dropping a digit after the decimal place if it's
573 # sufficiently negative (e.g. "-10.0") or positive (e.g.
574 # "100.0"). Thanks to diffs it's possible to have even more
575 # extreme values, like "-100.0" or "1000.0"; those rare case
576 # will end up with slightly wrong indenting, oh well.
577 $perc = safe_div($CC->[$i] * 100, $summary_CC->[$i]);
578 $perc = (-9.995 < $perc && $perc < 99.995)
579 ? sprintf(" (%5.2f%%)", $perc)
580 : sprintf(" (%5.1f%%)", $perc);
582 # Don't show percentages for "." and "0" entries.
587 # $reps will be negative for the extreme values mentioned above. The
588 # use of max() avoids a possible warning about a negative repeat count.
589 my $text = $count . $perc;
590 my $len = length($text);
591 my $reps = $CC_col_widths->[$i] - length($text);
592 my $space = ' ' x max($reps, 0);
593 print("$space$text ");
599 my ($CC_col_widths) = @_;
601 foreach my $i (@show_order) {
602 my $event = $events[$i];
603 my $event_width = length($event);
604 my $col_width = $CC_col_widths->[$i];
605 my $space = ' ' x ($col_width - $event_width);
606 print("$event$space ");
610 # Prints summary and function totals (with separate column widths, so that
611 # function names aren't pushed over unnecessarily by huge summary figures).
612 # Also returns a hash containing all the files that are involved in getting the
613 # events count above the thresholds (ie. all the interesting ones).
614 sub print_summary_and_fn_totals ()
616 my @fn_fullnames = keys %fn_totals;
618 # Work out the size of each column for printing (summary and functions
620 my $summary_CC_col_widths = compute_CC_col_widths($summary_CC);
621 my $fn_CC_col_widths = compute_CC_col_widths(values %fn_totals);
623 # Header and counts for summary
625 print_events($summary_CC_col_widths);
628 print_CC($summary_CC, $summary_CC_col_widths);
629 print(" PROGRAM TOTALS\n");
632 # Header for functions
634 print_events($fn_CC_col_widths);
635 print(" file:function\n");
638 # Sort function names into order dictated by --sort option.
639 @fn_fullnames = sort {
640 mycmp($fn_totals{$a}, $fn_totals{$b})
645 (scalar @sort_order == scalar @thresholds) or
646 die("sort_order length != thresholds length:\n",
647 " @sort_order\n @thresholds\n");
649 my $threshold_files = {};
650 # @curr_totals has the same shape as @sort_order and @thresholds
651 my @curr_totals = ();
652 foreach my $e (@thresholds) {
653 push(@curr_totals, 0);
656 # Print functions, stopping when the threshold has been reached.
657 foreach my $fn_name (@fn_fullnames) {
659 my $fn_CC = $fn_totals{$fn_name};
661 # Stop when we've reached all the thresholds
662 my $any_thresholds_exceeded = 0;
663 foreach my $i (0 .. scalar @thresholds - 1) {
664 my $prop = safe_div(abs($fn_CC->[$sort_order[$i]] * 100),
665 abs($summary_CC->[$sort_order[$i]]));
666 $any_thresholds_exceeded ||= ($prop >= $thresholds[$i]);
668 last if not $any_thresholds_exceeded;
670 # Print function results
671 print_CC($fn_CC, $fn_CC_col_widths);
672 print(" $fn_name\n");
674 # Update the threshold counts
675 my $filename = $fn_name;
676 $filename =~ s/:.+$//; # remove function name
677 $threshold_files->{$filename} = 1;
678 foreach my $i (0 .. scalar @sort_order - 1) {
679 $curr_totals[$i] += $fn_CC->[$sort_order[$i]]
680 if (defined $fn_CC->[$sort_order[$i]]);
685 return $threshold_files;
688 #-----------------------------------------------------------------------------
689 # Annotate selected files
690 #-----------------------------------------------------------------------------
692 # Issue a warning that the source file is more recent than the input file.
693 sub warning_on_src_more_recent_than_inputfile ($)
695 my $src_file = $_[0];
698 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
699 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
700 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
701 @ Source file '$src_file' is more recent than input file '$input_file'.
702 @ Annotations may not be correct.
703 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
710 # If there is information about lines not in the file, issue a warning
711 # explaining possible causes.
712 sub warning_on_nonexistent_lines ($$$)
714 my ($src_more_recent_than_inputfile, $src_file, $excess_line_nums) = @_;
715 my $cause_and_solution;
717 if ($src_more_recent_than_inputfile) {
718 $cause_and_solution = <<END
719 @@ cause: '$src_file' has changed since information was gathered.
720 @@ If so, a warning will have already been issued about this.
721 @@ solution: Recompile program and rerun under "valgrind --cachesim=yes" to
722 @@ gather new information.
724 # We suppress warnings about .h files
725 } elsif ($src_file =~ /\.h$/) {
726 $cause_and_solution = <<END
727 @@ cause: bug in the Valgrind's debug info reader that screws up with .h
729 @@ solution: none, sorry
732 $cause_and_solution = <<END
733 @@ cause: not sure, sorry
738 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
739 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
740 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
742 @@ Information recorded about lines past the end of '$src_file'.
744 @@ Probable cause and solution:
745 $cause_and_solution@@
746 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
752 sub annotate_ann_files($)
754 my ($threshold_files) = @_;
757 my @unfound_auto_annotate_files;
758 my $printed_totals_CC = [];
760 # If auto-annotating, add interesting files (but not "???")
761 if ($auto_annotate) {
762 delete $threshold_files->{"???"};
763 %all_ann_files = (%user_ann_files, %$threshold_files)
765 %all_ann_files = %user_ann_files;
768 # Track if we did any annotations.
769 my $did_annotations = 0;
772 foreach my $src_file (keys %all_ann_files) {
774 my $opened_file = "";
775 my $full_file_name = "";
776 # Nb: include_dirs already includes "", so it works in the case
777 # where the filename has the full path.
778 foreach my $include_dir (@include_dirs) {
779 my $try_name = $include_dir . $src_file;
780 if (open(INPUTFILE, "< $try_name")) {
781 $opened_file = $try_name;
782 $full_file_name = ($include_dir eq ""
784 : "$include_dir + $src_file");
789 if (not $opened_file) {
790 # Failed to open the file. If chosen on the command line, die.
791 # If arose from auto-annotation, print a little message.
792 if (defined $user_ann_files{$src_file}) {
793 die("File $src_file not opened in any of: @include_dirs\n");
796 push(@unfound_auto_annotate_files, $src_file);
800 # File header (distinguish between user- and auto-selected files).
803 (defined $user_ann_files{$src_file} ? "User" : "Auto");
804 print("-- $ann_type-annotated source: $full_file_name\n");
808 my $src_file_CCs = $allCCs{$src_file};
809 if (!defined $src_file_CCs) {
810 print(" No information has been collected for $src_file\n\n");
814 $did_annotations = 1;
816 # Numeric, not lexicographic sort!
817 my @line_nums = sort {$a <=> $b} keys %$src_file_CCs;
819 # If $src_file more recent than cachegrind.out, issue warning
820 my $src_more_recent_than_inputfile = 0;
821 if ((stat $opened_file)[9] > (stat $input_file)[9]) {
822 $src_more_recent_than_inputfile = 1;
823 warning_on_src_more_recent_than_inputfile($src_file);
826 # Work out the size of each column for printing
827 my $CC_col_widths = compute_CC_col_widths(values %$src_file_CCs);
830 print_events($CC_col_widths);
833 # Shift out 0 if it's in the line numbers (from unknown entries,
834 # likely due to bugs in Valgrind's stabs debug info reader)
835 shift(@line_nums) if (0 == $line_nums[0]);
837 # Finds interesting line ranges -- all lines with a CC, and all
838 # lines within $context lines of a line with a CC.
841 for (my $i = 0; $i < $n; $i++) {
842 push(@pairs, $line_nums[$i] - $context); # lower marker
844 $line_nums[$i] + 2*$context >= $line_nums[$i+1]) {
847 push(@pairs, $line_nums[$i] + $context); # upper marker
850 # Annotate chosen lines, tracking total counts of lines printed
851 $pairs[0] = 1 if ($pairs[0] < 1);
853 my $low = shift @pairs;
854 my $high = shift @pairs;
855 while ($. < $low-1) {
856 my $tmp = <INPUTFILE>;
857 last unless (defined $tmp); # hack to detect EOF
860 # Print line number, unless start of file
861 print("-- line $low " . '-' x 40 . "\n") if ($low != 1);
862 while (($. < $high) && ($src_line = <INPUTFILE>)) {
863 if (defined $line_nums[0] && $. == $line_nums[0]) {
864 print_CC($src_file_CCs->{$.}, $CC_col_widths);
865 add_array_a_to_b($src_file_CCs->{$.},
870 print_CC([], $CC_col_widths);
875 # Print line number, unless EOF
877 print("-- line $high " . '-' x 40 . "\n");
883 # If there was info on lines past the end of the file...
885 foreach my $line_num (@line_nums) {
886 print_CC($src_file_CCs->{$line_num}, $CC_col_widths);
887 print(" <bogus line $line_num>\n");
890 warning_on_nonexistent_lines($src_more_recent_than_inputfile,
891 $src_file, \@line_nums);
895 # Print summary of counts attributed to file but not to any
896 # particular line (due to incomplete debug info).
897 if ($src_file_CCs->{0}) {
898 print_CC($src_file_CCs->{0}, $CC_col_widths);
899 print(" <counts for unidentified lines in $src_file>\n\n");
906 # Print list of unfound auto-annotate selected files.
907 if (@unfound_auto_annotate_files) {
909 print("The following files chosen for auto-annotation could not be found:\n");
911 foreach my $f (sort @unfound_auto_annotate_files) {
917 # If we did any annotating, show how many events were covered by annotated
919 if ($did_annotations) {
920 my $CC_col_widths = compute_CC_col_widths($printed_totals_CC);
922 print_events($CC_col_widths);
925 print_CC($printed_totals_CC, $CC_col_widths);
926 print(" events annotated\n\n");
930 #----------------------------------------------------------------------------
932 #----------------------------------------------------------------------------
936 my $threshold_files = print_summary_and_fn_totals();
937 annotate_ann_files($threshold_files);
939 ##--------------------------------------------------------------------##
940 ##--- end cg_annotate.in ---##
941 ##--------------------------------------------------------------------##