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, see <http://www.gnu.org/licenses/>.
26 # The GNU General Public License is contained in the file COPYING.
28 #----------------------------------------------------------------------------
29 # The file format is simple, basically printing the cost centre for every
30 # source line, grouped by files and functions. The details are in
31 # Cachegrind's manual.
33 #----------------------------------------------------------------------------
34 # Performance improvements record, using cachegrind.out for cacheprof, doing no
35 # source annotation (irrelevant ones removed):
37 # 1. turned off warnings in add_hash_a_to_b() 3.81 --> 3.48s
38 # [now add_array_a_to_b()]
39 # 6. make line_to_CC() return a ref instead of a hash 3.01 --> 2.77s
41 #10. changed file format to avoid file/fn name repetition 2.40s
42 # (not sure why higher; maybe due to new '.' entries?)
43 #11. changed file format to drop unnecessary end-line "."s 2.36s
44 # (shrunk file by about 37%)
45 #12. switched from hash CCs to array CCs 1.61s
46 #13. only adding b[i] to a[i] if b[i] defined (was doing it if
47 # either a[i] or b[i] was defined, but if b[i] was undefined
48 # it just added 0) 1.48s
49 #14. Stopped converting "." entries to undef and then back 1.16s
50 #15. Using foreach $i (x..y) instead of for ($i = 0...) in
51 # add_array_a_to_b() 1.11s
53 # Auto-annotating primes:
54 #16. Finding count lengths by int((length-1)/3), not by
55 # commifying (halves the number of commify calls) 1.68s --> 1.47s
60 #----------------------------------------------------------------------------
61 # Overview: the running example in the comments is for:
65 #----------------------------------------------------------------------------
67 #----------------------------------------------------------------------------
68 # Global variables, main data structures
69 #----------------------------------------------------------------------------
70 # CCs are arrays, the counts corresponding to @events, with 'undef'
71 # representing '.'. This makes things fast (faster than using hashes for CCs)
72 # but we have to use @sort_order and @show_order below to handle the --sort and
73 # --show options, which is a bit tricky.
74 #----------------------------------------------------------------------------
76 # Total counts for summary (an array reference).
79 # Totals for each function, for overall summary.
80 # hash(filename:fn_name => CC array)
83 # Individual CCs, organised by filename and line_num for easy annotation.
84 # hash(filename => hash(line_num => CC array))
87 # Files chosen for annotation on the command line.
88 # key = basename (trimmed of any directory), value = full filename
91 # Generic description string.
94 # Command line of profiled program.
97 # Events in input file, eg. (A,B,C,D)
100 # Events to show, from command line, eg. (C,A,D)
103 # Map from @show_events indices to @events indices, eg. (2,0,3). Gives the
104 # order in which we must traverse @events in order to show the @show_events,
105 # eg. (@events[$show_order[1]], @events[$show_order[2]]...) = @show_events.
106 # (Might help to think of it like a hash (0 => 2, 1 => 0, 2 => 3).)
109 # Print out the function totals sorted by these events, eg. (D,C).
112 # Map from @sort_events indices to @events indices, eg. (3,2). Same idea as
116 # Thresholds, one for each sort event (or default to 1 if no sort events
117 # specified). We print out functions and do auto-annotations until we've
118 # handled this proportion of all the events thresholded.
121 my $default_threshold = 0.1;
123 my $single_threshold = $default_threshold;
125 # If on, show a percentage for each non-zero count.
128 # If on, automatically annotates all files that are involved in getting over
129 # all the threshold counts.
130 my $auto_annotate = 0;
132 # Number of lines to show around each annotated line.
135 # Directories in which to look for annotation files.
136 my @include_dirs = ("");
139 my $input_file = undef;
142 my $version = "@VERSION@";
146 usage: cg_annotate [options] cachegrind-out-file [source-files...]
148 options for the user, with defaults in [ ], are:
149 -h --help show this message
150 --version show version
151 --show=A,B,C only show figures for events A,B,C [all]
152 --sort=A,B,C sort columns by events A,B,C [event column order]
153 --threshold=<0--20> a function is shown if it accounts for more than x% of
154 the counts of the primary sort event [$default_threshold]
155 --show-percs=yes|no show a percentage for each non-zero count
156 --auto=yes|no annotate all source files containing functions
157 that helped reach the event count threshold [no]
158 --context=N print N lines of context before and after
160 -I<d> --include=<d> add <d> to list of directories to search for
163 cg_annotate is Copyright (C) 2002-2017 Nicholas Nethercote.
164 and licensed under the GNU General Public License, version 2.
165 Bug reports, feedback, admiration, abuse, etc, to: njn\@valgrind.org.
170 # Used in various places of output.
171 my $fancy = '-' x 80 . "\n";
176 return ($y == 0 ? 0 : $x / $y);
179 #-----------------------------------------------------------------------------
180 # Argument and option handling
181 #-----------------------------------------------------------------------------
182 sub process_cmd_line()
184 for my $arg (@ARGV) {
190 if ($arg =~ /^--version$/) {
191 die("cg_annotate-$version\n");
194 } elsif ($arg =~ /^--show=(.*)$/) {
195 @show_events = split(/,/, $1);
198 # Nb: You can specify thresholds individually, eg.
199 # --sort=A:99,B:95,C:90. These will override any --threshold
201 } elsif ($arg =~ /^--sort=(.*)$/) {
202 @sort_events = split(/,/, $1);
203 my $th_specified = 0;
204 foreach my $i (0 .. scalar @sort_events - 1) {
205 if ($sort_events[$i] =~ /.*:([\d\.]+)%?$/) {
207 ($th >= 0 && $th <= 100) or die($usage);
208 $sort_events[$i] =~ s/:.*//;
209 $thresholds[$i] = $th;
215 if (not $th_specified) {
219 # --threshold=X (tolerates a trailing '%')
220 } elsif ($arg =~ /^--threshold=([\d\.]+)%?$/) {
221 $single_threshold = $1;
222 ($1 >= 0 && $1 <= 20) or die($usage);
224 # --show-percs=yes|no
225 } elsif ($arg =~ /^--show-percs=yes$/) {
227 } elsif ($arg =~ /^--show-percs=no$/) {
231 } elsif ($arg =~ /^--auto=yes$/) {
233 } elsif ($arg =~ /^--auto=no$/) {
237 } elsif ($arg =~ /^--context=([\d\.]+)$/) {
243 # We don't handle "-I name" -- there can be no space.
244 } elsif ($arg =~ /^-I$/) {
245 die("Sorry, no space is allowed after a -I flag\n");
247 # --include=A,B,C. Allow -I=name for backwards compatibility.
248 } elsif ($arg =~ /^(-I=|-I|--include=)(.*)$/) {
250 $inc =~ s|/$||; # trim trailing '/'
251 push(@include_dirs, "$inc/");
253 } else { # -h and --help fall under this case
257 # Argument handling -- annotation file checking and selection.
258 # Stick filenames into a hash for quick 'n easy lookup throughout.
260 if (not defined $input_file) {
261 # First non-option argument is the output file.
264 # Subsequent non-option arguments are source files.
266 foreach my $include_dir (@include_dirs) {
267 if (-r $include_dir . $arg) {
271 $readable or die("File $arg not found in any of: @include_dirs\n");
272 $user_ann_files{$arg} = 1;
277 # Must have chosen an input file
278 if (not defined $input_file) {
283 #-----------------------------------------------------------------------------
284 # Reading of input file
285 #-----------------------------------------------------------------------------
289 return ($x > $y ? $x : $y);
292 # Add the two arrays; any '.' entries are ignored. Two tricky things:
293 # 1. If $a2->[$i] is undefined, it defaults to 0 which is what we want; we turn
294 # off warnings to allow this. This makes things about 10% faster than
295 # checking for definedness ourselves.
296 # 2. We don't add an undefined count or a ".", even though it's value is 0,
297 # because we don't want to make an $a2->[$i] that is undef become 0
299 sub add_array_a_to_b ($$)
303 my $n = max(scalar @$a1, scalar @$a2);
305 foreach my $i (0 .. $n-1) {
306 $a2->[$i] += $a1->[$i] if (defined $a1->[$i] && "." ne $a1->[$i]);
311 # Add each event count to the CC array. '.' counts become undef, as do
312 # missing entries (implicitly).
315 my @CC = (split /\s+/, $_[0]);
316 (@CC <= @events) or die("Line $.: too many event counts\n");
320 sub read_input_file()
322 open(INPUTFILE, "< $input_file")
323 || die "Cannot open $input_file for reading\n";
325 # Read "desc:" lines.
327 while ($line = <INPUTFILE>) {
328 if ($line =~ s/desc:\s+//) {
335 # Read "cmd:" line (Nb: will already be in $line from "desc:" loop above).
336 ($line =~ s/^cmd:\s+//) or die("Line $.: missing command line\n");
338 chomp($cmd); # Remove newline
340 # Read "events:" line. We make a temporary hash in which the Nth event's
341 # value is N, which is useful for handling --show/--sort options below.
343 (defined $line && $line =~ s/^events:\s+//)
344 or die("Line $.: missing events line\n");
345 @events = split(/\s+/, $line);
348 foreach my $event (@events) {
349 $events{$event} = $n;
353 # If no --show arg give, default to showing all events in the file.
354 # If --show option is used, check all specified events appeared in the
355 # "events:" line. Then initialise @show_order.
357 foreach my $show_event (@show_events) {
358 (defined $events{$show_event}) or
359 die("--show event `$show_event' did not appear in input\n");
362 @show_events = @events;
364 foreach my $show_event (@show_events) {
365 push(@show_order, $events{$show_event});
368 # Do as for --show, but if no --sort arg given, default to sorting by
369 # column order (ie. first column event is primary sort key, 2nd column is
372 foreach my $sort_event (@sort_events) {
373 (defined $events{$sort_event}) or
374 die("--sort event `$sort_event' did not appear in input\n");
377 @sort_events = @events;
379 foreach my $sort_event (@sort_events) {
380 push(@sort_order, $events{$sort_event});
383 # If multiple threshold args weren't given via --sort, stick in the single
384 # threshold (either from --threshold if used, or the default otherwise) for
385 # the primary sort event, and 0% for the rest.
386 if (not @thresholds) {
387 foreach my $e (@sort_order) {
388 push(@thresholds, 100);
390 $thresholds[0] = $single_threshold;
394 my $currFileFuncName;
397 my $currFileCCs = {}; # hash(line_num => CC)
399 # Read body of input file.
400 while (<INPUTFILE>) {
401 # Skip comments and empty lines.
402 next if /^\s*$/ || /^\#/;
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/^summary:\s+//) {
442 $summary_CC = line_to_CC($_);
443 (scalar(@$summary_CC) == @events)
444 or die("Line $.: summary event and total event mismatch\n");
447 warn("WARNING: line $. malformed, ignoring\n");
451 # Check if summary line was present
452 if (not defined $summary_CC) {
453 die("missing final summary line, aborting\n");
459 #-----------------------------------------------------------------------------
461 #-----------------------------------------------------------------------------
466 print("Command: $cmd\n");
467 print("Data file: $input_file\n");
468 print("Events recorded: @events\n");
469 print("Events shown: @show_events\n");
470 print("Event sort order: @sort_events\n");
471 print("Thresholds: @thresholds\n");
473 my @include_dirs2 = @include_dirs; # copy @include_dirs
474 shift(@include_dirs2); # remove "" entry, which is always the first
475 unshift(@include_dirs2, "") if (0 == @include_dirs2);
476 my $include_dir = shift(@include_dirs2);
477 print("Include dirs: $include_dir\n");
478 foreach my $include_dir (@include_dirs2) {
479 print(" $include_dir\n");
482 my @user_ann_files = keys %user_ann_files;
483 unshift(@user_ann_files, "") if (0 == @user_ann_files);
484 my $user_ann_file = shift(@user_ann_files);
485 print("User annotated: $user_ann_file\n");
486 foreach $user_ann_file (@user_ann_files) {
487 print(" $user_ann_file\n");
490 my $is_on = ($auto_annotate ? "on" : "off");
491 print("Auto-annotation: $is_on\n");
495 #-----------------------------------------------------------------------------
496 # Print summary and sorted function totals
497 #-----------------------------------------------------------------------------
502 # Iterate through sort events (eg. 3,2); return result if two are different
503 foreach my $i (@sort_order) {
507 $x = -1 unless defined $x;
508 $y = -1 unless defined $y;
510 my $cmp = abs($y) <=> abs($x); # reverse sort of absolute size
515 # Exhausted events, equal
521 1 while ($val =~ s/^(-?\d+)(\d{3})/$1,$2/);
525 # Because the counts can get very big, and we don't want to waste screen space
526 # and make lines too long, we compute exactly how wide each column needs to be
527 # by finding the widest entry for each one.
528 sub compute_CC_col_widths (@)
531 my $CC_col_widths = [];
533 # Initialise with minimum widths (from event names)
534 foreach my $event (@events) {
535 push(@$CC_col_widths, length($event));
538 # Find maximum width count for each column. @CC_col_width positions
539 # correspond to @CC positions.
540 foreach my $CC (@CCs) {
541 foreach my $i (0 .. scalar(@$CC)-1) {
542 if (defined $CC->[$i]) {
543 # Find length, accounting for commas that will be added, and
544 # possibly a percentage.
545 my $length = length $CC->[$i];
546 my $width = $length + int(($length - 1) / 3);
548 $width += 9; # e.g. " (12.34%)" is 9 chars
550 $CC_col_widths->[$i] = max($CC_col_widths->[$i], $width);
554 return $CC_col_widths;
557 # Print the CC with each column's size dictated by $CC_col_widths.
560 my ($CC, $CC_col_widths) = @_;
562 foreach my $i (@show_order) {
563 my $count = (defined $CC->[$i] ? commify($CC->[$i]) : ".");
567 if (defined $CC->[$i] && $CC->[$i] != 0) {
568 # Try our best to keep the number fitting into 5 chars. This
569 # requires dropping a digit after the decimal place if it's
570 # sufficiently negative (e.g. "-10.0") or positive (e.g.
571 # "100.0"). Thanks to diffs it's possible to have even more
572 # extreme values, like "-100.0" or "1000.0"; those rare case
573 # will end up with slightly wrong indenting, oh well.
574 $perc = safe_div($CC->[$i] * 100, $summary_CC->[$i]);
575 $perc = (-9.995 < $perc && $perc < 99.995)
576 ? sprintf(" (%5.2f%%)", $perc)
577 : sprintf(" (%5.1f%%)", $perc);
579 # Don't show percentages for "." and "0" entries.
584 # $reps will be negative for the extreme values mentioned above. The
585 # use of max() avoids a possible warning about a negative repeat count.
586 my $text = $count . $perc;
587 my $len = length($text);
588 my $reps = $CC_col_widths->[$i] - length($text);
589 my $space = ' ' x max($reps, 0);
590 print("$space$text ");
596 my ($CC_col_widths) = @_;
598 foreach my $i (@show_order) {
599 my $event = $events[$i];
600 my $event_width = length($event);
601 my $col_width = $CC_col_widths->[$i];
602 my $space = ' ' x ($col_width - $event_width);
603 print("$event$space ");
607 # Prints summary and function totals (with separate column widths, so that
608 # function names aren't pushed over unnecessarily by huge summary figures).
609 # Also returns a hash containing all the files that are involved in getting the
610 # events count above the thresholds (ie. all the interesting ones).
611 sub print_summary_and_fn_totals ()
613 my @fn_fullnames = keys %fn_totals;
615 # Work out the size of each column for printing (summary and functions
617 my $summary_CC_col_widths = compute_CC_col_widths($summary_CC);
618 my $fn_CC_col_widths = compute_CC_col_widths(values %fn_totals);
620 # Header and counts for summary
622 print_events($summary_CC_col_widths);
625 print_CC($summary_CC, $summary_CC_col_widths);
626 print(" PROGRAM TOTALS\n");
629 # Header for functions
631 print_events($fn_CC_col_widths);
632 print(" file:function\n");
635 # Sort function names into order dictated by --sort option.
636 @fn_fullnames = sort {
637 mycmp($fn_totals{$a}, $fn_totals{$b})
642 (scalar @sort_order == scalar @thresholds) or
643 die("sort_order length != thresholds length:\n",
644 " @sort_order\n @thresholds\n");
646 my $threshold_files = {};
647 # @curr_totals has the same shape as @sort_order and @thresholds
648 my @curr_totals = ();
649 foreach my $e (@thresholds) {
650 push(@curr_totals, 0);
653 # Print functions, stopping when the threshold has been reached.
654 foreach my $fn_name (@fn_fullnames) {
656 my $fn_CC = $fn_totals{$fn_name};
658 # Stop when we've reached all the thresholds
659 my $any_thresholds_exceeded = 0;
660 foreach my $i (0 .. scalar @thresholds - 1) {
661 my $prop = safe_div(abs($fn_CC->[$sort_order[$i]] * 100),
662 abs($summary_CC->[$sort_order[$i]]));
663 $any_thresholds_exceeded ||= ($prop >= $thresholds[$i]);
665 last if not $any_thresholds_exceeded;
667 # Print function results
668 print_CC($fn_CC, $fn_CC_col_widths);
669 print(" $fn_name\n");
671 # Update the threshold counts
672 my $filename = $fn_name;
673 $filename =~ s/:.+$//; # remove function name
674 $threshold_files->{$filename} = 1;
675 foreach my $i (0 .. scalar @sort_order - 1) {
676 $curr_totals[$i] += $fn_CC->[$sort_order[$i]]
677 if (defined $fn_CC->[$sort_order[$i]]);
682 return $threshold_files;
685 #-----------------------------------------------------------------------------
686 # Annotate selected files
687 #-----------------------------------------------------------------------------
689 # Issue a warning that the source file is more recent than the input file.
690 sub warning_on_src_more_recent_than_inputfile ($)
692 my $src_file = $_[0];
695 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
696 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
697 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
698 @ Source file '$src_file' is more recent than input file '$input_file'.
699 @ Annotations may not be correct.
700 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
707 # If there is information about lines not in the file, issue a warning
708 # explaining possible causes.
709 sub warning_on_nonexistent_lines ($$$)
711 my ($src_more_recent_than_inputfile, $src_file, $excess_line_nums) = @_;
712 my $cause_and_solution;
714 if ($src_more_recent_than_inputfile) {
715 $cause_and_solution = <<END
716 @@ cause: '$src_file' has changed since information was gathered.
717 @@ If so, a warning will have already been issued about this.
718 @@ solution: Recompile program and rerun under "valgrind --cachesim=yes" to
719 @@ gather new information.
721 # We suppress warnings about .h files
722 } elsif ($src_file =~ /\.h$/) {
723 $cause_and_solution = <<END
724 @@ cause: bug in the Valgrind's debug info reader that screws up with .h
726 @@ solution: none, sorry
729 $cause_and_solution = <<END
730 @@ cause: not sure, sorry
735 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
736 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
737 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
739 @@ Information recorded about lines past the end of '$src_file'.
741 @@ Probable cause and solution:
742 $cause_and_solution@@
743 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
749 sub annotate_ann_files($)
751 my ($threshold_files) = @_;
754 my @unfound_auto_annotate_files;
755 my $printed_totals_CC = [];
757 # If auto-annotating, add interesting files (but not "???")
758 if ($auto_annotate) {
759 delete $threshold_files->{"???"};
760 %all_ann_files = (%user_ann_files, %$threshold_files)
762 %all_ann_files = %user_ann_files;
765 # Track if we did any annotations.
766 my $did_annotations = 0;
769 foreach my $src_file (keys %all_ann_files) {
771 my $opened_file = "";
772 my $full_file_name = "";
773 # Nb: include_dirs already includes "", so it works in the case
774 # where the filename has the full path.
775 foreach my $include_dir (@include_dirs) {
776 my $try_name = $include_dir . $src_file;
777 if (open(INPUTFILE, "< $try_name")) {
778 $opened_file = $try_name;
779 $full_file_name = ($include_dir eq ""
781 : "$include_dir + $src_file");
786 if (not $opened_file) {
787 # Failed to open the file. If chosen on the command line, die.
788 # If arose from auto-annotation, print a little message.
789 if (defined $user_ann_files{$src_file}) {
790 die("File $src_file not opened in any of: @include_dirs\n");
793 push(@unfound_auto_annotate_files, $src_file);
797 # File header (distinguish between user- and auto-selected files).
800 (defined $user_ann_files{$src_file} ? "User" : "Auto");
801 print("-- $ann_type-annotated source: $full_file_name\n");
805 my $src_file_CCs = $allCCs{$src_file};
806 if (!defined $src_file_CCs) {
807 print(" No information has been collected for $src_file\n\n");
811 $did_annotations = 1;
813 # Numeric, not lexicographic sort!
814 my @line_nums = sort {$a <=> $b} keys %$src_file_CCs;
816 # If $src_file more recent than cachegrind.out, issue warning
817 my $src_more_recent_than_inputfile = 0;
818 if ((stat $opened_file)[9] > (stat $input_file)[9]) {
819 $src_more_recent_than_inputfile = 1;
820 warning_on_src_more_recent_than_inputfile($src_file);
823 # Work out the size of each column for printing
824 my $CC_col_widths = compute_CC_col_widths(values %$src_file_CCs);
827 print_events($CC_col_widths);
830 # Shift out 0 if it's in the line numbers (from unknown entries,
831 # likely due to bugs in Valgrind's stabs debug info reader)
832 shift(@line_nums) if (0 == $line_nums[0]);
834 # Finds interesting line ranges -- all lines with a CC, and all
835 # lines within $context lines of a line with a CC.
838 for (my $i = 0; $i < $n; $i++) {
839 push(@pairs, $line_nums[$i] - $context); # lower marker
841 $line_nums[$i] + 2*$context >= $line_nums[$i+1]) {
844 push(@pairs, $line_nums[$i] + $context); # upper marker
847 # Annotate chosen lines, tracking total counts of lines printed
848 $pairs[0] = 1 if ($pairs[0] < 1);
850 my $low = shift @pairs;
851 my $high = shift @pairs;
852 while ($. < $low-1) {
853 my $tmp = <INPUTFILE>;
854 last unless (defined $tmp); # hack to detect EOF
857 # Print line number, unless start of file
858 print("-- line $low " . '-' x 40 . "\n") if ($low != 1);
859 while (($. < $high) && ($src_line = <INPUTFILE>)) {
860 if (defined $line_nums[0] && $. == $line_nums[0]) {
861 print_CC($src_file_CCs->{$.}, $CC_col_widths);
862 add_array_a_to_b($src_file_CCs->{$.},
867 print_CC([], $CC_col_widths);
872 # Print line number, unless EOF
874 print("-- line $high " . '-' x 40 . "\n");
880 # If there was info on lines past the end of the file...
882 foreach my $line_num (@line_nums) {
883 print_CC($src_file_CCs->{$line_num}, $CC_col_widths);
884 print(" <bogus line $line_num>\n");
887 warning_on_nonexistent_lines($src_more_recent_than_inputfile,
888 $src_file, \@line_nums);
892 # Print summary of counts attributed to file but not to any
893 # particular line (due to incomplete debug info).
894 if ($src_file_CCs->{0}) {
895 print_CC($src_file_CCs->{0}, $CC_col_widths);
896 print(" <counts for unidentified lines in $src_file>\n\n");
903 # Print list of unfound auto-annotate selected files.
904 if (@unfound_auto_annotate_files) {
906 print("The following files chosen for auto-annotation could not be found:\n");
908 foreach my $f (sort @unfound_auto_annotate_files) {
914 # If we did any annotating, show how many events were covered by annotated
916 if ($did_annotations) {
917 my $CC_col_widths = compute_CC_col_widths($printed_totals_CC);
919 print_events($CC_col_widths);
922 print_CC($printed_totals_CC, $CC_col_widths);
923 print(" events annotated\n\n");
927 #----------------------------------------------------------------------------
929 #----------------------------------------------------------------------------
933 my $threshold_files = print_summary_and_fn_totals();
934 annotate_ann_files($threshold_files);
936 ##--------------------------------------------------------------------##
937 ##--- end cg_annotate.in ---##
938 ##--------------------------------------------------------------------##