2 ##--------------------------------------------------------------------##
3 ##--- The cache simulation framework: instrumentation, recording ---##
4 ##--- and results printing. ---##
5 ##--- callgrind_annotate ---##
6 ##--------------------------------------------------------------------##
8 # This file is part of Callgrind, a cache-simulator and call graph
9 # tracer built on Valgrind.
11 # Copyright (C) 2003 Josef Weidendorfer
12 # Josef.Weidendorfer@gmx.de
14 # This file is based heavily on cg_annotate, part of Valgrind.
15 # Copyright (C) 2002 Nicholas Nethercote
18 # This program is free software; you can redistribute it and/or
19 # modify it under the terms of the GNU General Public License as
20 # published by the Free Software Foundation; either version 2 of the
21 # License, or (at your option) any later version.
23 # This program is distributed in the hope that it will be useful, but
24 # WITHOUT ANY WARRANTY; without even the implied warranty of
25 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 # General Public License for more details.
28 # You should have received a copy of the GNU General Public License
29 # along with this program; if not, write to the Free Software
30 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
33 # The GNU General Public License is contained in the file COPYING.
35 #----------------------------------------------------------------------------
36 # Annotator for cachegrind/callgrind.
38 # File format is described in /docs/techdocs.html.
40 # Performance improvements record, using cachegrind.out for cacheprof, doing no
41 # source annotation (irrelevant ones removed):
43 # 1. turned off warnings in add_hash_a_to_b() 3.81 --> 3.48s
44 # [now add_array_a_to_b()]
45 # 6. make line_to_CC() return a ref instead of a hash 3.01 --> 2.77s
47 #10. changed file format to avoid file/fn name repetition 2.40s
48 # (not sure why higher; maybe due to new '.' entries?)
49 #11. changed file format to drop unnecessary end-line "."s 2.36s
50 # (shrunk file by about 37%)
51 #12. switched from hash CCs to array CCs 1.61s
52 #13. only adding b[i] to a[i] if b[i] defined (was doing it if
53 # either a[i] or b[i] was defined, but if b[i] was undefined
54 # it just added 0) 1.48s
55 #14. Stopped converting "." entries to undef and then back 1.16s
56 #15. Using foreach $i (x..y) instead of for ($i = 0...) in
57 # add_array_a_to_b() 1.11s
59 # Auto-annotating primes:
60 #16. Finding count lengths by int((length-1)/3), not by
61 # commifying (halves the number of commify calls) 1.68s --> 1.47s
65 #----------------------------------------------------------------------------
66 # Overview: the running example in the comments is for:
70 #----------------------------------------------------------------------------
72 #----------------------------------------------------------------------------
73 # Global variables, main data structures
74 #----------------------------------------------------------------------------
75 # CCs are arrays, the counts corresponding to @events, with 'undef'
76 # representing '.'. This makes things fast (faster than using hashes for CCs)
77 # but we have to use @sort_order and @show_order below to handle the --sort and
78 # --show options, which is a bit tricky.
79 #----------------------------------------------------------------------------
81 # Total counts for summary (an array reference).
85 # Totals for each function, for overall summary.
86 # hash(filename:fn_name => CC array)
89 # Individual CCs, organised by filename and line_num for easy annotation.
90 # hash(filename => hash(line_num => CC array))
93 # Files chosen for annotation on the command line.
94 # key = basename (trimmed of any directory), value = full filename
97 # Generic description string.
100 # Command line of profiled program.
103 # Info on the profiled process.
109 # Positions used for cost lines; default: line numbers
113 # Events in input file, eg. (A,B,C,D)
117 # Events to show, from command line, eg. (C,A,D)
120 # Map from @show_events indices to @events indices, eg. (2,0,3). Gives the
121 # order in which we must traverse @events in order to show the @show_events,
122 # eg. (@events[$show_order[1]], @events[$show_order[2]]...) = @show_events.
123 # (Might help to think of it like a hash (0 => 2, 1 => 0, 2 => 3).)
126 # Print out the function totals sorted by these events, eg. (D,C).
129 # Map from @sort_events indices to @events indices, eg. (3,2). Same idea as
133 # Thresholds, one for each sort event (or default to 1 if no sort events
134 # specified). We print out functions and do auto-annotations until we've
135 # handled this proportion of all the events thresholded.
138 my $default_threshold = 99;
140 my $single_threshold = $default_threshold;
142 # If on, automatically annotates all files that are involved in getting over
143 # all the threshold counts.
144 my $auto_annotate = 0;
146 # Number of lines to show around each annotated line.
149 # Directories in which to look for annotation files.
150 my @include_dirs = ("");
155 # Inclusive statistics (with subroutine events)
158 # Inclusive totals for each function, for overall summary.
159 # hash(filename:fn_name => CC array)
162 # hash( file:func => [ called file:func ])
165 # hash( file:func => [ calling file:func ])
168 # hash( file:func,line => [called file:func ])
169 my $called_from_line;
171 # hash( file:func,line => file:func
174 # hash (file:func => object name)
177 # Print out the callers of a function
180 # Print out the called functions
181 my $tree_calling = 0;
183 # hash( file:func,cfile:cfunc => call CC[])
186 # hash( file:func,cfile:cfunc => call counter)
189 # hash(context, index) => realname for compressed traces
192 # Input file name, will be set in process_cmd_line
196 my $version = "@VERSION@";
200 usage: callgrind_annotate [options] [callgrind-out-file [source-files...]]
202 options for the user, with defaults in [ ], are:
203 -h --help show this message
204 --version show version
205 --show=A,B,C only show figures for events A,B,C [all]
206 --sort=A,B,C sort columns by events A,B,C [event column order]
207 --threshold=<0--100> percentage of counts (of primary sort event) we
208 are interested in [$default_threshold%]
209 --auto=yes|no annotate all source files containing functions
210 that helped reach the event count threshold [no]
211 --context=N print N lines of context before and after
213 --inclusive=yes|no add subroutine costs to functions calls [no]
214 --tree=none|caller| print for each function their callers,
215 calling|both the called functions or both [none]
216 -I --include=<dir> add <dir> to list of directories to search for
222 # Used in various places of output.
223 my $fancy = '-' x 80 . "\n";
225 #-----------------------------------------------------------------------------
226 # Argument and option handling
227 #-----------------------------------------------------------------------------
228 sub process_cmd_line()
230 for my $arg (@ARGV) {
236 if ($arg =~ /^--version$/) {
237 die("callgrind_annotate-$version\n");
240 } elsif ($arg =~ /^--show=(.*)$/) {
241 @show_events = split(/,/, $1);
244 } elsif ($arg =~ /^--sort=(.*)$/) {
245 @sort_events = split(/,/, $1);
246 my $th_specified = 0;
247 foreach my $i (0 .. scalar @sort_events - 1) {
248 if ($sort_events[$i] =~ /.*:([\d\.]+)%?$/) {
250 ($th >= 0 && $th <= 100) or die($usage);
251 $sort_events[$i] =~ s/:.*//;
252 $thresholds[$i] = $th;
258 if (not $th_specified) {
262 # --threshold=X (tolerates a trailing '%')
263 } elsif ($arg =~ /^--threshold=([\d\.]+)%?$/) {
264 $single_threshold = $1;
265 ($1 >= 0 && $1 <= 100) or die($usage);
268 } elsif ($arg =~ /^--auto=(yes|no)$/) {
269 $auto_annotate = 1 if ($1 eq "yes");
270 $auto_annotate = 0 if ($1 eq "no");
273 } elsif ($arg =~ /^--context=([\d\.]+)$/) {
280 } elsif ($arg =~ /^--inclusive=(yes|no)$/) {
281 $inclusive = 1 if ($1 eq "yes");
282 $inclusive = 0 if ($1 eq "no");
284 # --tree=none|caller|calling|both
285 } elsif ($arg =~ /^--tree=(none|caller|calling|both)$/) {
286 $tree_caller = 1 if ($1 eq "caller" || $1 eq "both");
287 $tree_calling = 1 if ($1 eq "calling" || $1 eq "both");
290 } elsif ($arg =~ /^(-I|--include)=(.*)$/) {
292 $inc =~ s|/$||; # trim trailing '/'
293 push(@include_dirs, "$inc/");
295 } else { # -h and --help fall under this case
299 # Argument handling -- annotation file checking and selection.
300 # Stick filenames into a hash for quick 'n easy lookup throughout
302 if ($input_file eq "") {
307 foreach my $include_dir (@include_dirs) {
308 if (-r $include_dir . $arg) {
312 $readable or die("File $arg not found in any of: @include_dirs\n");
313 $user_ann_files{$arg} = 1;
318 if ($input_file eq "") {
319 $input_file = (<callgrind.out*>)[0];
320 if (!defined $input_file) {
321 $input_file = (<cachegrind.out*>)[0];
324 (defined $input_file) or die($usage);
325 print "Reading data from '$input_file'...\n";
329 #-----------------------------------------------------------------------------
330 # Reading of input file
331 #-----------------------------------------------------------------------------
335 return ($x > $y ? $x : $y);
338 # Add the two arrays; any '.' entries are ignored. Two tricky things:
339 # 1. If $a2->[$i] is undefined, it defaults to 0 which is what we want; we turn
340 # off warnings to allow this. This makes things about 10% faster than
341 # checking for definedness ourselves.
342 # 2. We don't add an undefined count or a ".", even though it's value is 0,
343 # because we don't want to make an $a2->[$i] that is undef become 0
345 sub add_array_a_to_b ($$)
349 my $n = max(scalar @$a1, scalar @$a2);
351 foreach my $i (0 .. $n-1) {
352 $a2->[$i] += $a1->[$i] if (defined $a1->[$i] && "." ne $a1->[$i]);
357 # Is this a line with all events zero?
362 foreach my $i (0 .. (scalar @$CC)-1) {
363 $isZero = 0 if ($CC->[$i] >0);
368 # Add each event count to the CC array. '.' counts become undef, as do
369 # missing entries (implicitly).
372 my @CC = (split /\s+/, $_[0]);
373 (@CC <= @events) or die("Line $.: too many event counts\n");
377 sub uncompressed_name($$)
379 my ($context, $name) = @_;
381 if ($name =~ /^\((\d+)\)\s*(.*)$/) {
385 if ($realname eq "") {
386 $realname = $compressed{$context,$index};
389 $compressed{$context,$index} = $realname;
396 sub read_input_file()
398 open(INPUTFILE, "< $input_file") || die "File $input_file not opened\n";
410 elsif (/^version:\s*(\d+)/) {
411 # Can't read format with major version > 1
412 ($1<2) or die("Can't read format with major version $1.\n");
415 elsif (/^pid:\s+(.*)$/) { $pid = $1; }
416 elsif (/^thread:\s+(.*)$/) { $thread = $1; }
417 elsif (/^part:\s+(.*)$/) { $part = $1; }
418 elsif (/^desc:\s+(.*)$/) {
420 # suppress profile options in description output
421 if ($dline =~ /^Option:/) {;}
422 else { $desc .= "$dline\n"; }
424 elsif (/^cmd:\s+(.*)$/) { $cmd = $1; }
425 elsif (/^creator:\s+(.*)$/) { $creator = $1; }
426 elsif (/^positions:\s+(.*)$/) {
428 $has_line = ($positions =~ /line/);
429 $has_addr = ($positions =~ /(addr|instr)/);
431 elsif (/^events:\s+(.*)$/) {
434 # events line is last in header
438 warn("WARNING: header line $. malformed, ignoring\n");
439 if ($verbose) { chomp; warn(" line: '$_'\n"); }
443 # Check for needed header entries
444 ($cmd ne "") or die("Line $.: missing command line\n");
446 # Read "events:" line. We make a temporary hash in which the Nth event's
447 # value is N, which is useful for handling --show/--sort options below.
448 ($events ne "") or die("Line $.: missing events line\n");
449 @events = split(/\s+/, $events);
452 foreach my $event (@events) {
453 $events{$event} = $n;
457 # If no --show arg give, default to showing all events in the file.
458 # If --show option is used, check all specified events appeared in the
459 # "events:" line. Then initialise @show_order.
461 foreach my $show_event (@show_events) {
462 (defined $events{$show_event}) or
463 die("--show event `$show_event' did not appear in input\n");
466 @show_events = @events;
468 foreach my $show_event (@show_events) {
469 push(@show_order, $events{$show_event});
472 # Do as for --show, but if no --sort arg given, default to sorting by
473 # column order (ie. first column event is primary sort key, 2nd column is
476 foreach my $sort_event (@sort_events) {
477 (defined $events{$sort_event}) or
478 die("--sort event `$sort_event' did not appear in input\n");
481 @sort_events = @events;
483 foreach my $sort_event (@sort_events) {
484 push(@sort_order, $events{$sort_event});
487 # If multiple threshold args weren't given via --sort, stick in the single
488 # threshold (either from --threshold if used, or the default otherwise) for
489 # the primary sort event, and 0% for the rest.
490 if (not @thresholds) {
491 foreach my $e (@sort_order) {
492 push(@thresholds, 0);
494 $thresholds[0] = $single_threshold;
497 # Current directory, used to strip from file names if absolute
506 my $curr_line_num = 0;
507 my $prev_line_num = 0;
513 my $curr_call_counter = 0;
514 my $curr_cfn_CC = [];
517 my $curr_file_ind_CCs = {}; # hash(line_num => CC)
519 # Read body of input file.
520 while (<INPUTFILE>) {
521 $prev_line_num = $curr_line_num;
523 s/#.*$//; # remove comments
524 s/^\+(\d+)/$prev_line_num+$1/e;
525 s/^\-(\d+)/$prev_line_num-$1/e;
526 s/^\*/$prev_line_num/e;
527 if (s/^(-?\d+|0x\w+)\s+//) {
531 s/^\+(\d+)/$prev_line_num+$1/e;
532 s/^\-(\d+)/$prev_line_num-$1/e;
533 s/^\*/$prev_line_num/e;
535 if (s/^(\d+)\s+//) { $curr_line_num = $1; }
537 else { $curr_line_num = 0; }
539 my $CC = line_to_CC($_);
541 if ($curr_call_counter>0) {
542 # print "Read ($curr_name => $curr_cname) $curr_call_counter\n";
544 if (!defined $call_CCs{$curr_name,$curr_cname}) {
545 $call_CCs{$curr_name,$curr_cname} = [];
546 $call_counter{$curr_name,$curr_cname} = 0;
548 add_array_a_to_b($CC, $call_CCs{$curr_name,$curr_cname});
549 $call_counter{$curr_name,$curr_cname} += $curr_call_counter;
551 my $tmp = $called_from_line->{$curr_file,$curr_line_num};
553 $func_of_line{$curr_file,$curr_line_num} = $curr_name;
555 $tmp = {} unless defined $tmp;
556 $$tmp{$curr_cname} = 1;
557 $called_from_line->{$curr_file,$curr_line_num} = $tmp;
558 if (!defined $call_CCs{$curr_name,$curr_cname,$curr_line_num}) {
559 $call_CCs{$curr_name,$curr_cname,$curr_line_num} = [];
560 $call_counter{$curr_name,$curr_cname,$curr_line_num} = 0;
562 add_array_a_to_b($CC, $call_CCs{$curr_name,$curr_cname,$curr_line_num});
563 $call_counter{$curr_name,$curr_cname,$curr_line_num} += $curr_call_counter;
565 $curr_call_counter = 0;
568 $curr_cfn_CC = $cfn_totals{$curr_cname};
569 $curr_cfn_CC = [] unless (defined $curr_cfn_CC);
570 add_array_a_to_b($CC, $curr_cfn_CC);
571 $cfn_totals{$curr_cname} = $curr_cfn_CC;
574 add_array_a_to_b($CC, $curr_fn_CC);
579 add_array_a_to_b($CC, $curr_fn_CC);
581 # If curr_file is selected, add CC to curr_file list. We look for
582 # full filename matches; or, if auto-annotating, we have to
583 # remember everything -- we won't know until the end what's needed.
584 if ($auto_annotate || defined $user_ann_files{$curr_file}) {
585 my $tmp = $curr_file_ind_CCs->{$curr_line_num};
586 $tmp = [] unless defined $tmp;
587 add_array_a_to_b($CC, $tmp);
588 $curr_file_ind_CCs->{$curr_line_num} = $tmp;
591 } elsif (s/^fn=(.*)$//) {
592 # Commit result from previous function
593 $fn_totals{$curr_name} = $curr_fn_CC if (defined $curr_name);
596 $curr_fn = uncompressed_name("fn",$1);
597 $curr_name = "$curr_file:$curr_fn";
598 $obj_name{$curr_name} = $curr_obj;
599 $curr_fn_CC = $fn_totals{$curr_name};
600 $curr_fn_CC = [] unless (defined $curr_fn_CC);
602 } elsif (s/^ob=(.*)$//) {
603 $curr_obj = uncompressed_name("ob",$1);
605 } elsif (s/^fl=(.*)$//) {
606 $all_ind_CCs{$curr_file} = $curr_file_ind_CCs
607 if (defined $curr_file);
609 $curr_file = uncompressed_name("fl",$1);
610 $curr_file =~ s/^\Q$pwd\E//;
611 $curr_file_ind_CCs = $all_ind_CCs{$curr_file};
612 $curr_file_ind_CCs = {} unless (defined $curr_file_ind_CCs);
614 } elsif (s/^(fi|fe)=(.*)$//) {
615 (defined $curr_name) or die("Line $.: Unexpected fi/fe line\n");
616 $fn_totals{$curr_name} = $curr_fn_CC;
617 $all_ind_CCs{$curr_file} = $curr_file_ind_CCs;
619 $curr_file = uncompressed_name("fl",$2);
620 $curr_file =~ s/^\Q$pwd\E//;
621 $curr_name = "$curr_file:$curr_fn";
622 $curr_file_ind_CCs = $all_ind_CCs{$curr_file};
623 $curr_file_ind_CCs = {} unless (defined $curr_file_ind_CCs);
624 $curr_fn_CC = $fn_totals{$curr_name};
625 $curr_fn_CC = [] unless (defined $curr_fn_CC);
627 } elsif (s/^\s*$//) {
630 } elsif (s/^cob=(.*)$//) {
631 $curr_cobj = uncompressed_name("ob",$1);
633 } elsif (s/^cfi=(.*)$//) {
634 $curr_cfile = uncompressed_name("fl",$1);
636 } elsif (s/^cfn=(.*)$//) {
637 $curr_cfunc = uncompressed_name("fn",$1);
638 if ($curr_cfile eq "") {
639 $curr_cname = "$curr_file:$curr_cfunc";
642 $curr_cname = "$curr_cfile:$curr_cfunc";
646 my $tmp = $calling_funcs->{$curr_cname};
647 $tmp = {} unless defined $tmp;
648 $$tmp{$curr_name} = 1;
649 $calling_funcs->{$curr_cname} = $tmp;
651 my $tmp2 = $called_funcs->{$curr_name};
652 $tmp2 = {} unless defined $tmp2;
653 $$tmp2{$curr_cname} = 1;
654 $called_funcs->{$curr_name} = $tmp2;
656 } elsif (s/^calls=(\d+)//) {
657 $curr_call_counter = $1;
659 } elsif (s/^(jump|jcnd)=//) {
660 #ignore jump information
662 } elsif (s/^jfi=(.*)$//) {
663 # side effect needed: possibly add compression mapping
664 uncompressed_name("fl",$1);
665 # ignore jump information
667 } elsif (s/^jfn=(.*)$//) {
668 # side effect needed: possibly add compression mapping
669 uncompressed_name("fn",$1);
670 # ignore jump information
672 } elsif (s/^totals:\s+//) {
673 $totals_CC = line_to_CC($_);
675 } elsif (s/^summary:\s+//) {
676 $summary_CC = line_to_CC($_);
679 warn("WARNING: line $. malformed, ignoring\n");
680 if ($verbose) { chomp; warn(" line: '$_'\n"); }
684 if ((not defined $summary_CC) || is_zero($summary_CC)) {
685 $summary_CC = $totals_CC;
688 # Check if summary line was present
689 if (not defined $summary_CC) {
690 warn("WARNING: missing final summary line, no summary will be printed\n");
693 # Finish up handling final filename/fn_name counts
694 $fn_totals{"$curr_file:$curr_fn"} = $curr_fn_CC
695 if (defined $curr_file && defined $curr_fn);
696 $all_ind_CCs{$curr_file} =
697 $curr_file_ind_CCs if (defined $curr_file);
699 # Correct inclusive totals
701 foreach my $name (keys %cfn_totals) {
702 $fn_totals{$name} = $cfn_totals{$name};
709 #-----------------------------------------------------------------------------
711 #-----------------------------------------------------------------------------
715 print "Profile data file '$input_file'";
716 if ($creator ne "") { print " (creator: $creator)"; }
723 $target .= " (PID $pid";
724 if ($part ne "") { $target .= ", part $part"; }
725 if ($thread ne "") { $target .= ", thread $thread"; }
728 print("Profiled target: $target\n");
729 print("Events recorded: @events\n");
730 print("Events shown: @show_events\n");
731 print("Event sort order: @sort_events\n");
732 print("Thresholds: @thresholds\n");
734 my @include_dirs2 = @include_dirs; # copy @include_dirs
735 shift(@include_dirs2); # remove "" entry, which is always the first
736 unshift(@include_dirs2, "") if (0 == @include_dirs2);
737 my $include_dir = shift(@include_dirs2);
738 print("Include dirs: $include_dir\n");
739 foreach my $include_dir (@include_dirs2) {
740 print(" $include_dir\n");
743 my @user_ann_files = keys %user_ann_files;
744 unshift(@user_ann_files, "") if (0 == @user_ann_files);
745 my $user_ann_file = shift(@user_ann_files);
746 print("User annotated: $user_ann_file\n");
747 foreach $user_ann_file (@user_ann_files) {
748 print(" $user_ann_file\n");
751 my $is_on = ($auto_annotate ? "on" : "off");
752 print("Auto-annotation: $is_on\n");
756 #-----------------------------------------------------------------------------
757 # Print summary and sorted function totals
758 #-----------------------------------------------------------------------------
763 # Iterate through sort events (eg. 3,2); return result if two are different
764 foreach my $i (@sort_order) {
768 $x = -1 unless defined $x;
769 $y = -1 unless defined $y;
771 my $cmp = $y <=> $x; # reverse sort
776 # Exhausted events, equal
782 1 while ($val =~ s/^(\d+)(\d{3})/$1,$2/);
786 # Because the counts can get very big, and we don't want to waste screen space
787 # and make lines too long, we compute exactly how wide each column needs to be
788 # by finding the widest entry for each one.
789 sub compute_CC_col_widths (@)
792 my $CC_col_widths = [];
794 # Initialise with minimum widths (from event names)
795 foreach my $event (@events) {
796 push(@$CC_col_widths, length($event));
799 # Find maximum width count for each column. @CC_col_width positions
800 # correspond to @CC positions.
801 foreach my $CC (@CCs) {
802 foreach my $i (0 .. scalar(@$CC)-1) {
803 if (defined $CC->[$i]) {
804 # Find length, accounting for commas that will be added
805 my $length = length $CC->[$i];
806 my $clength = $length + int(($length - 1) / 3);
807 $CC_col_widths->[$i] = max($CC_col_widths->[$i], $clength);
811 return $CC_col_widths;
814 # Print the CC with each column's size dictated by $CC_col_widths.
817 my ($CC, $CC_col_widths) = @_;
819 foreach my $i (@show_order) {
820 my $count = (defined $CC->[$i] ? commify($CC->[$i]) : ".");
821 my $space = ' ' x ($CC_col_widths->[$i] - length($count));
822 print("$space$count ");
828 my ($CC_col_widths) = @_;
830 foreach my $i (@show_order) {
831 my $event = $events[$i];
832 my $event_width = length($event);
833 my $col_width = $CC_col_widths->[$i];
834 my $space = ' ' x ($col_width - $event_width);
835 print("$space$event ");
839 # Prints summary and function totals (with separate column widths, so that
840 # function names aren't pushed over unnecessarily by huge summary figures).
841 # Also returns a hash containing all the files that are involved in getting the
842 # events count above the thresholds (ie. all the interesting ones).
843 sub print_summary_and_fn_totals ()
845 my @fn_fullnames = keys %fn_totals;
847 # Work out the size of each column for printing (summary and functions
849 my $summary_CC_col_widths = compute_CC_col_widths($summary_CC);
850 my $fn_CC_col_widths = compute_CC_col_widths(values %fn_totals);
852 # Header and counts for summary
854 print_events($summary_CC_col_widths);
857 print_CC($summary_CC, $summary_CC_col_widths);
858 print(" PROGRAM TOTALS\n");
861 # Header for functions
863 print_events($fn_CC_col_widths);
864 print(" file:function\n");
867 # Sort function names into order dictated by --sort option.
868 @fn_fullnames = sort {
869 mycmp($fn_totals{$a}, $fn_totals{$b})
874 (scalar @sort_order == scalar @thresholds) or
875 die("sort_order length != thresholds length:\n",
876 " @sort_order\n @thresholds\n");
878 my $threshold_files = {};
879 # @curr_totals has the same shape as @sort_order and @thresholds
880 my @curr_totals = ();
881 foreach my $e (@thresholds) {
882 push(@curr_totals, 0);
885 # Print functions, stopping when the threshold has been reached.
886 foreach my $fn_name (@fn_fullnames) {
888 # Stop when we've reached all the thresholds
889 my $reached_all_thresholds = 1;
890 foreach my $i (0 .. scalar @thresholds - 1) {
891 my $prop = $curr_totals[$i] * 100;
892 if ($summary_CC->[$sort_order[$i]] >0) {
893 $prop = $prop / $summary_CC->[$sort_order[$i]];
895 $reached_all_thresholds &&= ($prop >= $thresholds[$i]);
897 last if $reached_all_thresholds;
899 if ($tree_caller || $tree_calling) { print "\n"; }
901 if ($tree_caller && ($fn_name ne "???:???")) {
902 # Print function callers
903 my $tmp1 = $calling_funcs->{$fn_name};
905 foreach my $calling (keys %$tmp1) {
906 if (defined $call_counter{$calling,$fn_name}) {
907 print_CC($call_CCs{$calling,$fn_name}, $fn_CC_col_widths);
908 print" < $calling (";
909 print $call_counter{$calling,$fn_name} . "x)";
910 if (defined $obj_name{$calling}) {
911 print " [$obj_name{$calling}]";
919 # Print function results
920 my $fn_CC = $fn_totals{$fn_name};
921 print_CC($fn_CC, $fn_CC_col_widths);
922 if ($tree_caller || $tree_calling) { print " * "; }
924 if (defined $obj_name{$fn_name}) {
925 print " [$obj_name{$fn_name}]";
929 if ($tree_calling && ($fn_name ne "???:???")) {
930 # Print called functions
931 my $tmp2 = $called_funcs->{$fn_name};
933 foreach my $called (keys %$tmp2) {
934 if (defined $call_counter{$fn_name,$called}) {
935 print_CC($call_CCs{$fn_name,$called}, $fn_CC_col_widths);
937 print $call_counter{$fn_name,$called} . "x)";
938 if (defined $obj_name{$called}) {
939 print " [$obj_name{$called}]";
947 # Update the threshold counts
948 my $filename = $fn_name;
949 $filename =~ s/:.+$//; # remove function name
950 $threshold_files->{$filename} = 1;
951 foreach my $i (0 .. scalar @sort_order - 1) {
953 $curr_totals[$i] = $summary_CC->[$sort_order[$i]] -
954 $fn_CC->[$sort_order[$i]]
955 if (defined $fn_CC->[$sort_order[$i]]);
957 $curr_totals[$i] += $fn_CC->[$sort_order[$i]]
958 if (defined $fn_CC->[$sort_order[$i]]);
964 return $threshold_files;
967 #-----------------------------------------------------------------------------
968 # Annotate selected files
969 #-----------------------------------------------------------------------------
971 # Issue a warning that the source file is more recent than the input file.
972 sub warning_on_src_more_recent_than_inputfile ($)
974 my $src_file = $_[0];
977 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
978 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
979 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
980 @ Source file '$src_file' is more recent than input file '$input_file'.
981 @ Annotations may not be correct.
982 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
989 # If there is information about lines not in the file, issue a warning
990 # explaining possible causes.
991 sub warning_on_nonexistent_lines ($$$)
993 my ($src_more_recent_than_inputfile, $src_file, $excess_line_nums) = @_;
994 my $cause_and_solution;
996 if ($src_more_recent_than_inputfile) {
997 $cause_and_solution = <<END
998 @@ cause: '$src_file' has changed since information was gathered.
999 @@ If so, a warning will have already been issued about this.
1000 @@ solution: Recompile program and rerun under "valgrind --cachesim=yes" to
1001 @@ gather new information.
1003 # We suppress warnings about .h files
1004 } elsif ($src_file =~ /\.h$/) {
1005 $cause_and_solution = <<END
1006 @@ cause: bug in the Valgrind's debug info reader that screws up with .h
1008 @@ solution: none, sorry
1011 $cause_and_solution = <<END
1012 @@ cause: not sure, sorry
1017 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
1018 @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
1019 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
1021 @@ Information recorded about lines past the end of '$src_file'.
1023 @@ Probable cause and solution:
1024 $cause_and_solution@@
1025 @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
1031 sub annotate_ann_files($)
1033 my ($threshold_files) = @_;
1036 my @unfound_auto_annotate_files;
1037 my $printed_totals_CC = [];
1039 # If auto-annotating, add interesting files (but not "???")
1040 if ($auto_annotate) {
1041 delete $threshold_files->{"???"};
1042 %all_ann_files = (%user_ann_files, %$threshold_files)
1044 %all_ann_files = %user_ann_files;
1047 # Track if we did any annotations.
1048 my $did_annotations = 0;
1051 foreach my $src_file (keys %all_ann_files) {
1053 my $opened_file = "";
1054 my $full_file_name = "";
1055 foreach my $include_dir (@include_dirs) {
1056 my $try_name = $include_dir . $src_file;
1057 if (open(INPUTFILE, "< $try_name")) {
1058 $opened_file = $try_name;
1059 $full_file_name = ($include_dir eq ""
1061 : "$include_dir + $src_file");
1066 if (not $opened_file) {
1067 # Failed to open the file. If chosen on the command line, die.
1068 # If arose from auto-annotation, print a little message.
1069 if (defined $user_ann_files{$src_file}) {
1070 die("File $src_file not opened in any of: @include_dirs\n");
1073 push(@unfound_auto_annotate_files, $src_file);
1077 # File header (distinguish between user- and auto-selected files).
1080 (defined $user_ann_files{$src_file} ? "User" : "Auto");
1081 print("-- $ann_type-annotated source: $full_file_name\n");
1085 my $src_file_CCs = $all_ind_CCs{$src_file};
1086 if (!defined $src_file_CCs) {
1087 print(" No information has been collected for $src_file\n\n");
1091 $did_annotations = 1;
1093 # Numeric, not lexicographic sort!
1094 my @line_nums = sort {$a <=> $b} keys %$src_file_CCs;
1096 # If $src_file more recent than cachegrind.out, issue warning
1097 my $src_more_recent_than_inputfile = 0;
1098 if ((stat $opened_file)[9] > (stat $input_file)[9]) {
1099 $src_more_recent_than_inputfile = 1;
1100 warning_on_src_more_recent_than_inputfile($src_file);
1103 # Work out the size of each column for printing
1104 my $CC_col_widths = compute_CC_col_widths(values %$src_file_CCs);
1107 print_events($CC_col_widths);
1110 # Shift out 0 if it's in the line numbers (from unknown entries,
1111 # likely due to bugs in Valgrind's stabs debug info reader)
1112 shift(@line_nums) if (0 == $line_nums[0]);
1114 # Finds interesting line ranges -- all lines with a CC, and all
1115 # lines within $context lines of a line with a CC.
1118 for (my $i = 0; $i < $n; $i++) {
1119 push(@pairs, $line_nums[$i] - $context); # lower marker
1121 $line_nums[$i] + 2*$context >= $line_nums[$i+1]) {
1124 push(@pairs, $line_nums[$i] + $context); # upper marker
1127 # Annotate chosen lines, tracking total counts of lines printed
1128 $pairs[0] = 1 if ($pairs[0] < 1);
1130 my $low = shift @pairs;
1131 my $high = shift @pairs;
1132 while ($. < $low-1) {
1133 my $tmp = <INPUTFILE>;
1134 last unless (defined $tmp); # hack to detect EOF
1137 # Print line number, unless start of file
1138 print("-- line $low " . '-' x 40 . "\n") if ($low != 1);
1139 while (($. < $high) && ($src_line = <INPUTFILE>)) {
1140 if (defined $line_nums[0] && $. == $line_nums[0]) {
1141 print_CC($src_file_CCs->{$.}, $CC_col_widths);
1142 add_array_a_to_b($src_file_CCs->{$.},
1143 $printed_totals_CC);
1147 print_CC( [], $CC_col_widths);
1150 print(" $src_line");
1152 my $tmp = $called_from_line->{$src_file,$.};
1153 my $func = $func_of_line{$src_file,$.};
1155 foreach my $called (keys %$tmp) {
1156 if (defined $call_CCs{$func,$called,$.}) {
1157 print_CC($call_CCs{$func,$called,$.}, $CC_col_widths);
1158 print " => $called (";
1159 print $call_counter{$func,$called,$.} . "x)\n";
1164 # Print line number, unless EOF
1166 print("-- line $high " . '-' x 40 . "\n");
1172 # If there was info on lines past the end of the file...
1174 foreach my $line_num (@line_nums) {
1175 print_CC($src_file_CCs->{$line_num}, $CC_col_widths);
1176 print(" <bogus line $line_num>\n");
1179 warning_on_nonexistent_lines($src_more_recent_than_inputfile,
1180 $src_file, \@line_nums);
1184 # Print summary of counts attributed to file but not to any
1185 # particular line (due to incomplete debug info).
1186 if ($src_file_CCs->{0}) {
1187 print_CC($src_file_CCs->{0}, $CC_col_widths);
1188 print(" <counts for unidentified lines in $src_file>\n\n");
1195 # Print list of unfound auto-annotate selected files.
1196 if (@unfound_auto_annotate_files) {
1198 print("The following files chosen for auto-annotation could not be found:\n");
1200 foreach my $f (@unfound_auto_annotate_files) {
1206 # If we did any annotating, print what proportion of events were covered by
1207 # annotated lines above.
1208 if ($did_annotations) {
1209 my $percent_printed_CC;
1210 foreach (my $i = 0; $i < @$summary_CC; $i++) {
1211 $percent_printed_CC->[$i] =
1213 $printed_totals_CC->[$i] / $summary_CC->[$i] * 100);
1215 my $pp_CC_col_widths = compute_CC_col_widths($percent_printed_CC);
1217 print_events($pp_CC_col_widths);
1220 print_CC($percent_printed_CC, $pp_CC_col_widths);
1221 print(" percentage of events annotated\n\n");
1225 #----------------------------------------------------------------------------
1227 #----------------------------------------------------------------------------
1231 my $threshold_files = print_summary_and_fn_totals();
1232 annotate_ann_files($threshold_files);
1234 ##--------------------------------------------------------------------##
1235 ##--- end vg_annotate.in ---##
1236 ##--------------------------------------------------------------------##