mirror of
https://github.com/ioacademy-jikim/debugging
synced 2025-06-08 16:36:21 +00:00
1247 lines
40 KiB
Perl
1247 lines
40 KiB
Perl
#! /usr/bin/perl -w
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##--------------------------------------------------------------------##
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##--- The cache simulation framework: instrumentation, recording ---##
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##--- and results printing. ---##
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##--- callgrind_annotate ---##
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##--------------------------------------------------------------------##
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# This file is part of Callgrind, a cache-simulator and call graph
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# tracer built on Valgrind.
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#
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# Copyright (C) 2003-2015 Josef Weidendorfer
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# Josef.Weidendorfer@gmx.de
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#
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# This file is based heavily on cg_annotate, part of Valgrind.
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# Copyright (C) 2002-2015 Nicholas Nethercote
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# njn@valgrind.org
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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# 02111-1307, USA.
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#
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# The GNU General Public License is contained in the file COPYING.
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#----------------------------------------------------------------------------
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# Annotator for cachegrind/callgrind.
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#
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# File format is described in /docs/techdocs.html.
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#
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# Performance improvements record, using cachegrind.out for cacheprof, doing no
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# source annotation (irrelevant ones removed):
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# user time
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# 1. turned off warnings in add_hash_a_to_b() 3.81 --> 3.48s
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# [now add_array_a_to_b()]
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# 6. make line_to_CC() return a ref instead of a hash 3.01 --> 2.77s
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#
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#10. changed file format to avoid file/fn name repetition 2.40s
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# (not sure why higher; maybe due to new '.' entries?)
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#11. changed file format to drop unnecessary end-line "."s 2.36s
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# (shrunk file by about 37%)
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#12. switched from hash CCs to array CCs 1.61s
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#13. only adding b[i] to a[i] if b[i] defined (was doing it if
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# either a[i] or b[i] was defined, but if b[i] was undefined
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# it just added 0) 1.48s
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#14. Stopped converting "." entries to undef and then back 1.16s
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#15. Using foreach $i (x..y) instead of for ($i = 0...) in
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# add_array_a_to_b() 1.11s
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#
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# Auto-annotating primes:
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#16. Finding count lengths by int((length-1)/3), not by
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# commifying (halves the number of commify calls) 1.68s --> 1.47s
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use strict;
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#----------------------------------------------------------------------------
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# Overview: the running example in the comments is for:
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# - events = A,B,C,D
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# - --show=C,A,D
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# - --sort=D,C
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#----------------------------------------------------------------------------
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#----------------------------------------------------------------------------
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# Global variables, main data structures
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#----------------------------------------------------------------------------
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# CCs are arrays, the counts corresponding to @events, with 'undef'
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# representing '.'. This makes things fast (faster than using hashes for CCs)
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# but we have to use @sort_order and @show_order below to handle the --sort and
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# --show options, which is a bit tricky.
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#----------------------------------------------------------------------------
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# Total counts for summary (an array reference).
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my $summary_CC;
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my $totals_CC;
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my $summary_calculated = 0;
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# Totals for each function, for overall summary.
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# hash(filename:fn_name => CC array)
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my %fn_totals;
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# Individual CCs, organised by filename and line_num for easy annotation.
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# hash(filename => hash(line_num => CC array))
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my %all_ind_CCs;
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# Files chosen for annotation on the command line.
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# key = basename (trimmed of any directory), value = full filename
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my %user_ann_files;
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# Generic description string.
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my $desc = "";
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# Command line of profiled program.
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my $cmd = "";
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# Info on the profiled process.
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my $creator = "";
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my $pid = "";
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my $part = "";
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my $thread = "";
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# Positions used for cost lines; default: line numbers
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my $has_line = 1;
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my $has_addr = 0;
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# Events in input file, eg. (A,B,C,D)
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my @events;
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my $events;
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# Events to show, from command line, eg. (C,A,D)
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my @show_events;
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# Map from @show_events indices to @events indices, eg. (2,0,3). Gives the
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# order in which we must traverse @events in order to show the @show_events,
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# eg. (@events[$show_order[1]], @events[$show_order[2]]...) = @show_events.
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# (Might help to think of it like a hash (0 => 2, 1 => 0, 2 => 3).)
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my @show_order;
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# Print out the function totals sorted by these events, eg. (D,C).
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my @sort_events;
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# Map from @sort_events indices to @events indices, eg. (3,2). Same idea as
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# for @show_order.
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my @sort_order;
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# Thresholds, one for each sort event (or default to 1 if no sort events
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# specified). We print out functions and do auto-annotations until we've
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# handled this proportion of all the events thresholded.
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my @thresholds;
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my $default_threshold = 99;
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my $single_threshold = $default_threshold;
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# If on, automatically annotates all files that are involved in getting over
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# all the threshold counts.
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my $auto_annotate = 0;
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# Number of lines to show around each annotated line.
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my $context = 8;
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# Directories in which to look for annotation files.
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my @include_dirs = ("");
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# Verbose mode
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my $verbose = "1";
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# Inclusive statistics (with subroutine events)
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my $inclusive = 0;
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# Inclusive totals for each function, for overall summary.
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# hash(filename:fn_name => CC array)
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my %cfn_totals;
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# hash( file:func => [ called file:func ])
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my $called_funcs;
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# hash( file:func => [ calling file:func ])
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my $calling_funcs;
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# hash( file:func,line => [called file:func ])
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my $called_from_line;
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# hash( file:func,line => file:func
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my %func_of_line;
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# hash (file:func => object name)
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my %obj_name;
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# Print out the callers of a function
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my $tree_caller = 0;
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# Print out the called functions
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my $tree_calling = 0;
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# hash( file:func,cfile:cfunc => call CC[])
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my %call_CCs;
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# hash( file:func,cfile:cfunc => call counter)
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my %call_counter;
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# hash(context, index) => realname for compressed traces
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my %compressed;
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# Input file name, will be set in process_cmd_line
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my $input_file = "";
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# Version number
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my $version = "@VERSION@";
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# Usage message.
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my $usage = <<END
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usage: callgrind_annotate [options] [callgrind-out-file [source-files...]]
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options for the user, with defaults in [ ], are:
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-h --help show this message
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--version show version
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--show=A,B,C only show figures for events A,B,C [all]
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--sort=A,B,C sort columns by events A,B,C [event column order]
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--threshold=<0--100> percentage of counts (of primary sort event) we
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are interested in [$default_threshold%]
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--auto=yes|no annotate all source files containing functions
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that helped reach the event count threshold [no]
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--context=N print N lines of context before and after
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annotated lines [8]
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--inclusive=yes|no add subroutine costs to functions calls [no]
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--tree=none|caller| print for each function their callers,
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calling|both the called functions or both [none]
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-I --include=<dir> add <dir> to list of directories to search for
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source files
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END
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;
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# Used in various places of output.
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my $fancy = '-' x 80 . "\n";
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#-----------------------------------------------------------------------------
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# Argument and option handling
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#-----------------------------------------------------------------------------
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sub process_cmd_line()
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{
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for my $arg (@ARGV) {
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# Option handling
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if ($arg =~ /^-/) {
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# --version
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if ($arg =~ /^--version$/) {
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die("callgrind_annotate-$version\n");
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# --show=A,B,C
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} elsif ($arg =~ /^--show=(.*)$/) {
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@show_events = split(/,/, $1);
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# --sort=A,B,C
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} elsif ($arg =~ /^--sort=(.*)$/) {
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@sort_events = split(/,/, $1);
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my $th_specified = 0;
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foreach my $i (0 .. scalar @sort_events - 1) {
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if ($sort_events[$i] =~ /.*:([\d\.]+)%?$/) {
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my $th = $1;
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($th >= 0 && $th <= 100) or die($usage);
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$sort_events[$i] =~ s/:.*//;
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$thresholds[$i] = $th;
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$th_specified = 1;
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} else {
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$thresholds[$i] = 0;
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}
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}
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if (not $th_specified) {
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@thresholds = ();
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}
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# --threshold=X (tolerates a trailing '%')
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} elsif ($arg =~ /^--threshold=([\d\.]+)%?$/) {
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$single_threshold = $1;
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($1 >= 0 && $1 <= 100) or die($usage);
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# --auto=yes|no
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} elsif ($arg =~ /^--auto=(yes|no)$/) {
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$auto_annotate = 1 if ($1 eq "yes");
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$auto_annotate = 0 if ($1 eq "no");
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# --context=N
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} elsif ($arg =~ /^--context=([\d\.]+)$/) {
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$context = $1;
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if ($context < 0) {
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die($usage);
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}
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# --inclusive=yes|no
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} elsif ($arg =~ /^--inclusive=(yes|no)$/) {
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$inclusive = 1 if ($1 eq "yes");
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$inclusive = 0 if ($1 eq "no");
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# --tree=none|caller|calling|both
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} elsif ($arg =~ /^--tree=(none|caller|calling|both)$/) {
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$tree_caller = 1 if ($1 eq "caller" || $1 eq "both");
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$tree_calling = 1 if ($1 eq "calling" || $1 eq "both");
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# --include=A,B,C
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} elsif ($arg =~ /^(-I|--include)=(.*)$/) {
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my $inc = $2;
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$inc =~ s|/$||; # trim trailing '/'
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push(@include_dirs, "$inc/");
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} else { # -h and --help fall under this case
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die($usage);
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}
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# Argument handling -- annotation file checking and selection.
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# Stick filenames into a hash for quick 'n easy lookup throughout
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} else {
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if ($input_file eq "") {
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$input_file = $arg;
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}
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else {
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my $readable = 0;
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foreach my $include_dir (@include_dirs) {
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if (-r $include_dir . $arg) {
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$readable = 1;
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}
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}
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$readable or die("File $arg not found in any of: @include_dirs\n");
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$user_ann_files{$arg} = 1;
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}
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}
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}
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if ($input_file eq "") {
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$input_file = (<callgrind.out*>)[0];
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if (!defined $input_file) {
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$input_file = (<cachegrind.out*>)[0];
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}
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(defined $input_file) or die($usage);
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print "Reading data from '$input_file'...\n";
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}
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}
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#-----------------------------------------------------------------------------
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# Reading of input file
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#-----------------------------------------------------------------------------
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sub max ($$)
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{
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my ($x, $y) = @_;
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return ($x > $y ? $x : $y);
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}
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# Add the two arrays; any '.' entries are ignored. Two tricky things:
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# 1. If $a2->[$i] is undefined, it defaults to 0 which is what we want; we turn
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# off warnings to allow this. This makes things about 10% faster than
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# checking for definedness ourselves.
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# 2. We don't add an undefined count or a ".", even though it's value is 0,
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# because we don't want to make an $a2->[$i] that is undef become 0
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# unnecessarily.
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sub add_array_a_to_b ($$)
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{
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my ($a1, $a2) = @_;
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my $n = max(scalar @$a1, scalar @$a2);
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$^W = 0;
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foreach my $i (0 .. $n-1) {
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$a2->[$i] += $a1->[$i] if (defined $a1->[$i] && "." ne $a1->[$i]);
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}
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$^W = 1;
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}
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# Is this a line with all events zero?
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sub is_zero ($)
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{
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my ($CC) = @_;
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my $isZero = 1;
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foreach my $i (0 .. (scalar @$CC)-1) {
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$isZero = 0 if ($CC->[$i] >0);
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}
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return $isZero;
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}
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# Add each event count to the CC array. '.' counts become undef, as do
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# missing entries (implicitly).
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sub line_to_CC ($)
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{
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my @CC = (split /\s+/, $_[0]);
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(@CC <= @events) or die("Line $.: too many event counts\n");
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return \@CC;
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}
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sub uncompressed_name($$)
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{
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my ($context, $name) = @_;
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if ($name =~ /^\((\d+)\)\s*(.*)$/) {
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my $index = $1;
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my $realname = $2;
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if ($realname eq "") {
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$realname = $compressed{$context,$index};
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}
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else {
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$compressed{$context,$index} = $realname;
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}
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return $realname;
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}
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return $name;
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}
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sub read_input_file()
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{
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open(INPUTFILE, "< $input_file") || die "File $input_file not opened\n";
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my $line;
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# Read header
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while(<INPUTFILE>) {
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# remove comments
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s/#.*$//;
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if (/^$/) { ; }
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elsif (/^version:\s*(\d+)/) {
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# Can't read format with major version > 1
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($1<2) or die("Can't read format with major version $1.\n");
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}
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elsif (/^pid:\s+(.*)$/) { $pid = $1; }
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elsif (/^thread:\s+(.*)$/) { $thread = $1; }
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elsif (/^part:\s+(.*)$/) { $part = $1; }
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elsif (/^desc:\s+(.*)$/) {
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my $dline = $1;
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# suppress profile options in description output
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if ($dline =~ /^Option:/) {;}
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else { $desc .= "$dline\n"; }
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}
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elsif (/^cmd:\s+(.*)$/) { $cmd = $1; }
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elsif (/^creator:\s+(.*)$/) { $creator = $1; }
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elsif (/^positions:\s+(.*)$/) {
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my $positions = $1;
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$has_line = ($positions =~ /line/);
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$has_addr = ($positions =~ /(addr|instr)/);
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}
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elsif (/^events:\s+(.*)$/) {
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$events = $1;
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# events line is last in header
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last;
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}
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else {
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warn("WARNING: header line $. malformed, ignoring\n");
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if ($verbose) { chomp; warn(" line: '$_'\n"); }
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}
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}
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# Read "events:" line. We make a temporary hash in which the Nth event's
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# value is N, which is useful for handling --show/--sort options below.
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($events ne "") or die("Line $.: missing events line\n");
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@events = split(/\s+/, $events);
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my %events;
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my $n = 0;
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foreach my $event (@events) {
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$events{$event} = $n;
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$n++
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}
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# If no --show arg give, default to showing all events in the file.
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# If --show option is used, check all specified events appeared in the
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# "events:" line. Then initialise @show_order.
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if (@show_events) {
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foreach my $show_event (@show_events) {
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(defined $events{$show_event}) or
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die("--show event `$show_event' did not appear in input\n");
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}
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} else {
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@show_events = @events;
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}
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foreach my $show_event (@show_events) {
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push(@show_order, $events{$show_event});
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}
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# Do as for --show, but if no --sort arg given, default to sorting by
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# column order (ie. first column event is primary sort key, 2nd column is
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# 2ndary key, etc).
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if (@sort_events) {
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foreach my $sort_event (@sort_events) {
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(defined $events{$sort_event}) or
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die("--sort event `$sort_event' did not appear in input\n");
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}
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} else {
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@sort_events = @events;
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}
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foreach my $sort_event (@sort_events) {
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push(@sort_order, $events{$sort_event});
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}
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# If multiple threshold args weren't given via --sort, stick in the single
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# threshold (either from --threshold if used, or the default otherwise) for
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# the primary sort event, and 0% for the rest.
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if (not @thresholds) {
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foreach my $e (@sort_order) {
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push(@thresholds, 0);
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}
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$thresholds[0] = $single_threshold;
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}
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# Current directory, used to strip from file names if absolute
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my $pwd = `pwd`;
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chomp $pwd;
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$pwd .= '/';
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my $curr_obj = "";
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my $curr_file;
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my $curr_fn;
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my $curr_name;
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my $curr_line_num = 0;
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my $prev_line_num = 0;
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my $curr_cobj = "";
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my $curr_cfile = "";
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my $curr_cfunc = "";
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my $curr_cname;
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my $curr_call_counter = 0;
|
|
my $curr_cfn_CC = [];
|
|
|
|
my $curr_fn_CC = [];
|
|
my $curr_file_ind_CCs = {}; # hash(line_num => CC)
|
|
|
|
# Read body of input file.
|
|
while (<INPUTFILE>) {
|
|
$prev_line_num = $curr_line_num;
|
|
|
|
s/#.*$//; # remove comments
|
|
s/^\+(\d+)/$prev_line_num+$1/e;
|
|
s/^\-(\d+)/$prev_line_num-$1/e;
|
|
s/^\*/$prev_line_num/e;
|
|
if (s/^(-?\d+|0x\w+)\s+//) {
|
|
$curr_line_num = $1;
|
|
if ($has_addr) {
|
|
if ($has_line) {
|
|
s/^\+(\d+)/$prev_line_num+$1/e;
|
|
s/^\-(\d+)/$prev_line_num-$1/e;
|
|
s/^\*/$prev_line_num/e;
|
|
|
|
if (s/^(\d+)\s+//) { $curr_line_num = $1; }
|
|
}
|
|
else { $curr_line_num = 0; }
|
|
}
|
|
my $CC = line_to_CC($_);
|
|
|
|
if ($curr_call_counter>0) {
|
|
# print "Read ($curr_name => $curr_cname) $curr_call_counter\n";
|
|
|
|
if (!defined $call_CCs{$curr_name,$curr_cname}) {
|
|
$call_CCs{$curr_name,$curr_cname} = [];
|
|
$call_counter{$curr_name,$curr_cname} = 0;
|
|
}
|
|
add_array_a_to_b($CC, $call_CCs{$curr_name,$curr_cname});
|
|
$call_counter{$curr_name,$curr_cname} += $curr_call_counter;
|
|
|
|
my $tmp = $called_from_line->{$curr_file,$curr_line_num};
|
|
if (!defined $tmp) {
|
|
$func_of_line{$curr_file,$curr_line_num} = $curr_name;
|
|
}
|
|
$tmp = {} unless defined $tmp;
|
|
$$tmp{$curr_cname} = 1;
|
|
$called_from_line->{$curr_file,$curr_line_num} = $tmp;
|
|
if (!defined $call_CCs{$curr_name,$curr_cname,$curr_line_num}) {
|
|
$call_CCs{$curr_name,$curr_cname,$curr_line_num} = [];
|
|
$call_counter{$curr_name,$curr_cname,$curr_line_num} = 0;
|
|
}
|
|
add_array_a_to_b($CC, $call_CCs{$curr_name,$curr_cname,$curr_line_num});
|
|
$call_counter{$curr_name,$curr_cname,$curr_line_num} += $curr_call_counter;
|
|
|
|
$curr_call_counter = 0;
|
|
|
|
# inclusive costs
|
|
$curr_cfn_CC = $cfn_totals{$curr_cname};
|
|
$curr_cfn_CC = [] unless (defined $curr_cfn_CC);
|
|
add_array_a_to_b($CC, $curr_cfn_CC);
|
|
$cfn_totals{$curr_cname} = $curr_cfn_CC;
|
|
|
|
if ($inclusive) {
|
|
add_array_a_to_b($CC, $curr_fn_CC);
|
|
}
|
|
next;
|
|
}
|
|
|
|
add_array_a_to_b($CC, $curr_fn_CC);
|
|
|
|
# If curr_file is selected, add CC to curr_file list. We look for
|
|
# full filename matches; or, if auto-annotating, we have to
|
|
# remember everything -- we won't know until the end what's needed.
|
|
if ($auto_annotate || defined $user_ann_files{$curr_file}) {
|
|
my $tmp = $curr_file_ind_CCs->{$curr_line_num};
|
|
$tmp = [] unless defined $tmp;
|
|
add_array_a_to_b($CC, $tmp);
|
|
$curr_file_ind_CCs->{$curr_line_num} = $tmp;
|
|
}
|
|
|
|
} elsif (s/^fn=(.*)$//) {
|
|
# Commit result from previous function
|
|
$fn_totals{$curr_name} = $curr_fn_CC if (defined $curr_name);
|
|
|
|
# Setup new one
|
|
$curr_fn = uncompressed_name("fn",$1);
|
|
$curr_name = "$curr_file:$curr_fn";
|
|
$obj_name{$curr_name} = $curr_obj;
|
|
$curr_fn_CC = $fn_totals{$curr_name};
|
|
$curr_fn_CC = [] unless (defined $curr_fn_CC);
|
|
|
|
} elsif (s/^ob=(.*)$//) {
|
|
$curr_obj = uncompressed_name("ob",$1);
|
|
|
|
} elsif (s/^fl=(.*)$//) {
|
|
$all_ind_CCs{$curr_file} = $curr_file_ind_CCs
|
|
if (defined $curr_file);
|
|
|
|
$curr_file = uncompressed_name("fl",$1);
|
|
$curr_file =~ s/^\Q$pwd\E//;
|
|
$curr_file_ind_CCs = $all_ind_CCs{$curr_file};
|
|
$curr_file_ind_CCs = {} unless (defined $curr_file_ind_CCs);
|
|
|
|
} elsif (s/^(fi|fe)=(.*)$//) {
|
|
(defined $curr_name) or die("Line $.: Unexpected fi/fe line\n");
|
|
$fn_totals{$curr_name} = $curr_fn_CC;
|
|
$all_ind_CCs{$curr_file} = $curr_file_ind_CCs;
|
|
|
|
$curr_file = uncompressed_name("fl",$2);
|
|
$curr_file =~ s/^\Q$pwd\E//;
|
|
$curr_name = "$curr_file:$curr_fn";
|
|
$curr_file_ind_CCs = $all_ind_CCs{$curr_file};
|
|
$curr_file_ind_CCs = {} unless (defined $curr_file_ind_CCs);
|
|
$curr_fn_CC = $fn_totals{$curr_name};
|
|
$curr_fn_CC = [] unless (defined $curr_fn_CC);
|
|
|
|
} elsif (s/^\s*$//) {
|
|
# blank, do nothing
|
|
|
|
} elsif (s/^cob=(.*)$//) {
|
|
$curr_cobj = uncompressed_name("ob",$1);
|
|
|
|
} elsif (s/^cf[il]=(.*)$//) {
|
|
$curr_cfile = uncompressed_name("fl",$1);
|
|
|
|
} elsif (s/^cfn=(.*)$//) {
|
|
$curr_cfunc = uncompressed_name("fn",$1);
|
|
if ($curr_cfile eq "") {
|
|
$curr_cname = "$curr_file:$curr_cfunc";
|
|
}
|
|
else {
|
|
$curr_cname = "$curr_cfile:$curr_cfunc";
|
|
$curr_cfile = "";
|
|
}
|
|
|
|
my $tmp = $calling_funcs->{$curr_cname};
|
|
$tmp = {} unless defined $tmp;
|
|
$$tmp{$curr_name} = 1;
|
|
$calling_funcs->{$curr_cname} = $tmp;
|
|
|
|
my $tmp2 = $called_funcs->{$curr_name};
|
|
$tmp2 = {} unless defined $tmp2;
|
|
$$tmp2{$curr_cname} = 1;
|
|
$called_funcs->{$curr_name} = $tmp2;
|
|
|
|
} elsif (s/^calls=(\d+)//) {
|
|
$curr_call_counter = $1;
|
|
|
|
} elsif (s/^(jump|jcnd)=//) {
|
|
#ignore jump information
|
|
|
|
} elsif (s/^jfi=(.*)$//) {
|
|
# side effect needed: possibly add compression mapping
|
|
uncompressed_name("fl",$1);
|
|
# ignore jump information
|
|
|
|
} elsif (s/^jfn=(.*)$//) {
|
|
# side effect needed: possibly add compression mapping
|
|
uncompressed_name("fn",$1);
|
|
# ignore jump information
|
|
|
|
} elsif (s/^totals:\s+//) {
|
|
$totals_CC = line_to_CC($_);
|
|
|
|
} elsif (s/^summary:\s+//) {
|
|
$summary_CC = line_to_CC($_);
|
|
|
|
} else {
|
|
warn("WARNING: line $. malformed, ignoring\n");
|
|
if ($verbose) { chomp; warn(" line: '$_'\n"); }
|
|
}
|
|
}
|
|
|
|
# Finish up handling final filename/fn_name counts
|
|
$fn_totals{"$curr_file:$curr_fn"} = $curr_fn_CC
|
|
if (defined $curr_file && defined $curr_fn);
|
|
$all_ind_CCs{$curr_file} =
|
|
$curr_file_ind_CCs if (defined $curr_file);
|
|
|
|
# Correct inclusive totals
|
|
if ($inclusive) {
|
|
foreach my $name (keys %cfn_totals) {
|
|
$fn_totals{$name} = $cfn_totals{$name};
|
|
}
|
|
}
|
|
|
|
close(INPUTFILE);
|
|
|
|
if ((not defined $summary_CC) || is_zero($summary_CC)) {
|
|
$summary_CC = $totals_CC;
|
|
|
|
# if neither 'summary:' nor 'totals:' line is given,
|
|
# calculate summary from fn_totals hash
|
|
if ((not defined $summary_CC) || is_zero($summary_CC)) {
|
|
$summary_calculated = 1;
|
|
$summary_CC = [];
|
|
foreach my $name (keys %fn_totals) {
|
|
add_array_a_to_b($fn_totals{$name}, $summary_CC);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#-----------------------------------------------------------------------------
|
|
# Print options used
|
|
#-----------------------------------------------------------------------------
|
|
sub print_options ()
|
|
{
|
|
print($fancy);
|
|
print "Profile data file '$input_file'";
|
|
if ($creator ne "") { print " (creator: $creator)"; }
|
|
print "\n";
|
|
|
|
print($fancy);
|
|
print($desc);
|
|
my $target = $cmd;
|
|
if ($target eq "") { $target = "(unknown)"; }
|
|
if ($pid ne "") {
|
|
$target .= " (PID $pid";
|
|
if ($part ne "") { $target .= ", part $part"; }
|
|
if ($thread ne "") { $target .= ", thread $thread"; }
|
|
$target .= ")";
|
|
}
|
|
print("Profiled target: $target\n");
|
|
print("Events recorded: @events\n");
|
|
print("Events shown: @show_events\n");
|
|
print("Event sort order: @sort_events\n");
|
|
print("Thresholds: @thresholds\n");
|
|
|
|
my @include_dirs2 = @include_dirs; # copy @include_dirs
|
|
shift(@include_dirs2); # remove "" entry, which is always the first
|
|
unshift(@include_dirs2, "") if (0 == @include_dirs2);
|
|
my $include_dir = shift(@include_dirs2);
|
|
print("Include dirs: $include_dir\n");
|
|
foreach my $include_dir (@include_dirs2) {
|
|
print(" $include_dir\n");
|
|
}
|
|
|
|
my @user_ann_files = keys %user_ann_files;
|
|
unshift(@user_ann_files, "") if (0 == @user_ann_files);
|
|
my $user_ann_file = shift(@user_ann_files);
|
|
print("User annotated: $user_ann_file\n");
|
|
foreach $user_ann_file (@user_ann_files) {
|
|
print(" $user_ann_file\n");
|
|
}
|
|
|
|
my $is_on = ($auto_annotate ? "on" : "off");
|
|
print("Auto-annotation: $is_on\n");
|
|
print("\n");
|
|
}
|
|
|
|
#-----------------------------------------------------------------------------
|
|
# Print summary and sorted function totals
|
|
#-----------------------------------------------------------------------------
|
|
sub mycmp ($$)
|
|
{
|
|
my ($c, $d) = @_;
|
|
|
|
# Iterate through sort events (eg. 3,2); return result if two are different
|
|
foreach my $i (@sort_order) {
|
|
my ($x, $y);
|
|
$x = $c->[$i];
|
|
$y = $d->[$i];
|
|
$x = -1 unless defined $x;
|
|
$y = -1 unless defined $y;
|
|
|
|
my $cmp = $y <=> $x; # reverse sort
|
|
if (0 != $cmp) {
|
|
return $cmp;
|
|
}
|
|
}
|
|
# Exhausted events, equal
|
|
return 0;
|
|
}
|
|
|
|
sub commify ($) {
|
|
my ($val) = @_;
|
|
1 while ($val =~ s/^(\d+)(\d{3})/$1,$2/);
|
|
return $val;
|
|
}
|
|
|
|
# Because the counts can get very big, and we don't want to waste screen space
|
|
# and make lines too long, we compute exactly how wide each column needs to be
|
|
# by finding the widest entry for each one.
|
|
sub compute_CC_col_widths (@)
|
|
{
|
|
my @CCs = @_;
|
|
my $CC_col_widths = [];
|
|
|
|
# Initialise with minimum widths (from event names)
|
|
foreach my $event (@events) {
|
|
push(@$CC_col_widths, length($event));
|
|
}
|
|
|
|
# Find maximum width count for each column. @CC_col_width positions
|
|
# correspond to @CC positions.
|
|
foreach my $CC (@CCs) {
|
|
foreach my $i (0 .. scalar(@$CC)-1) {
|
|
if (defined $CC->[$i]) {
|
|
# Find length, accounting for commas that will be added
|
|
my $length = length $CC->[$i];
|
|
my $clength = $length + int(($length - 1) / 3);
|
|
$CC_col_widths->[$i] = max($CC_col_widths->[$i], $clength);
|
|
}
|
|
}
|
|
}
|
|
return $CC_col_widths;
|
|
}
|
|
|
|
# Print the CC with each column's size dictated by $CC_col_widths.
|
|
sub print_CC ($$)
|
|
{
|
|
my ($CC, $CC_col_widths) = @_;
|
|
|
|
foreach my $i (@show_order) {
|
|
my $count = (defined $CC->[$i] ? commify($CC->[$i]) : ".");
|
|
my $space = ' ' x ($CC_col_widths->[$i] - length($count));
|
|
print("$space$count ");
|
|
}
|
|
}
|
|
|
|
sub print_events ($)
|
|
{
|
|
my ($CC_col_widths) = @_;
|
|
|
|
foreach my $i (@show_order) {
|
|
my $event = $events[$i];
|
|
my $event_width = length($event);
|
|
my $col_width = $CC_col_widths->[$i];
|
|
my $space = ' ' x ($col_width - $event_width);
|
|
print("$space$event ");
|
|
}
|
|
}
|
|
|
|
# Prints summary and function totals (with separate column widths, so that
|
|
# function names aren't pushed over unnecessarily by huge summary figures).
|
|
# Also returns a hash containing all the files that are involved in getting the
|
|
# events count above the thresholds (ie. all the interesting ones).
|
|
sub print_summary_and_fn_totals ()
|
|
{
|
|
my @fn_fullnames = keys %fn_totals;
|
|
|
|
# Work out the size of each column for printing (summary and functions
|
|
# separately).
|
|
my $summary_CC_col_widths = compute_CC_col_widths($summary_CC);
|
|
my $fn_CC_col_widths = compute_CC_col_widths(values %fn_totals);
|
|
|
|
# Header and counts for summary
|
|
print($fancy);
|
|
print_events($summary_CC_col_widths);
|
|
print("\n");
|
|
print($fancy);
|
|
print_CC($summary_CC, $summary_CC_col_widths);
|
|
print(" PROGRAM TOTALS");
|
|
if ($summary_calculated) {
|
|
print(" (calculated)");
|
|
}
|
|
print("\n\n");
|
|
|
|
# Header for functions
|
|
print($fancy);
|
|
print_events($fn_CC_col_widths);
|
|
print(" file:function\n");
|
|
print($fancy);
|
|
|
|
# Sort function names into order dictated by --sort option.
|
|
@fn_fullnames = sort {
|
|
mycmp($fn_totals{$a}, $fn_totals{$b})
|
|
} @fn_fullnames;
|
|
|
|
|
|
# Assertion
|
|
(scalar @sort_order == scalar @thresholds) or
|
|
die("sort_order length != thresholds length:\n",
|
|
" @sort_order\n @thresholds\n");
|
|
|
|
my $threshold_files = {};
|
|
# @curr_totals has the same shape as @sort_order and @thresholds
|
|
my @curr_totals = ();
|
|
foreach my $e (@thresholds) {
|
|
push(@curr_totals, 0);
|
|
}
|
|
|
|
# Print functions, stopping when the threshold has been reached.
|
|
foreach my $fn_name (@fn_fullnames) {
|
|
|
|
# Stop when we've reached all the thresholds
|
|
my $reached_all_thresholds = 1;
|
|
foreach my $i (0 .. scalar @thresholds - 1) {
|
|
my $prop = $curr_totals[$i] * 100;
|
|
if ($summary_CC->[$sort_order[$i]] >0) {
|
|
$prop = $prop / $summary_CC->[$sort_order[$i]];
|
|
}
|
|
$reached_all_thresholds &&= ($prop >= $thresholds[$i]);
|
|
}
|
|
last if $reached_all_thresholds;
|
|
|
|
if ($tree_caller || $tree_calling) { print "\n"; }
|
|
|
|
if ($tree_caller && ($fn_name ne "???:???")) {
|
|
# Print function callers
|
|
my $tmp1 = $calling_funcs->{$fn_name};
|
|
if (defined $tmp1) {
|
|
foreach my $calling (keys %$tmp1) {
|
|
if (defined $call_counter{$calling,$fn_name}) {
|
|
print_CC($call_CCs{$calling,$fn_name}, $fn_CC_col_widths);
|
|
print" < $calling (";
|
|
print $call_counter{$calling,$fn_name} . "x)";
|
|
if (defined $obj_name{$calling}) {
|
|
print " [$obj_name{$calling}]";
|
|
}
|
|
print "\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# Print function results
|
|
my $fn_CC = $fn_totals{$fn_name};
|
|
print_CC($fn_CC, $fn_CC_col_widths);
|
|
if ($tree_caller || $tree_calling) { print " * "; }
|
|
print(" $fn_name");
|
|
if ((defined $obj_name{$fn_name}) &&
|
|
($obj_name{$fn_name} ne "")) {
|
|
print " [$obj_name{$fn_name}]";
|
|
}
|
|
print "\n";
|
|
|
|
if ($tree_calling && ($fn_name ne "???:???")) {
|
|
# Print called functions
|
|
my $tmp2 = $called_funcs->{$fn_name};
|
|
if (defined $tmp2) {
|
|
foreach my $called (keys %$tmp2) {
|
|
if (defined $call_counter{$fn_name,$called}) {
|
|
print_CC($call_CCs{$fn_name,$called}, $fn_CC_col_widths);
|
|
print" > $called (";
|
|
print $call_counter{$fn_name,$called} . "x)";
|
|
if (defined $obj_name{$called}) {
|
|
print " [$obj_name{$called}]";
|
|
}
|
|
print "\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
# Update the threshold counts
|
|
my $filename = $fn_name;
|
|
$filename =~ s/:.+$//; # remove function name
|
|
$threshold_files->{$filename} = 1;
|
|
foreach my $i (0 .. scalar @sort_order - 1) {
|
|
if ($inclusive) {
|
|
$curr_totals[$i] = $summary_CC->[$sort_order[$i]] -
|
|
$fn_CC->[$sort_order[$i]]
|
|
if (defined $fn_CC->[$sort_order[$i]]);
|
|
} else {
|
|
$curr_totals[$i] += $fn_CC->[$sort_order[$i]]
|
|
if (defined $fn_CC->[$sort_order[$i]]);
|
|
}
|
|
}
|
|
}
|
|
print("\n");
|
|
|
|
return $threshold_files;
|
|
}
|
|
|
|
#-----------------------------------------------------------------------------
|
|
# Annotate selected files
|
|
#-----------------------------------------------------------------------------
|
|
|
|
# Issue a warning that the source file is more recent than the input file.
|
|
sub warning_on_src_more_recent_than_inputfile ($)
|
|
{
|
|
my $src_file = $_[0];
|
|
|
|
my $warning = <<END
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
@@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
@ Source file '$src_file' is more recent than input file '$input_file'.
|
|
@ Annotations may not be correct.
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
|
|
END
|
|
;
|
|
print($warning);
|
|
}
|
|
|
|
# If there is information about lines not in the file, issue a warning
|
|
# explaining possible causes.
|
|
sub warning_on_nonexistent_lines ($$$)
|
|
{
|
|
my ($src_more_recent_than_inputfile, $src_file, $excess_line_nums) = @_;
|
|
my $cause_and_solution;
|
|
|
|
if ($src_more_recent_than_inputfile) {
|
|
$cause_and_solution = <<END
|
|
@@ cause: '$src_file' has changed since information was gathered.
|
|
@@ If so, a warning will have already been issued about this.
|
|
@@ solution: Recompile program and rerun under "valgrind --cachesim=yes" to
|
|
@@ gather new information.
|
|
END
|
|
# We suppress warnings about .h files
|
|
} elsif ($src_file =~ /\.h$/) {
|
|
$cause_and_solution = <<END
|
|
@@ cause: bug in the Valgrind's debug info reader that screws up with .h
|
|
@@ files sometimes
|
|
@@ solution: none, sorry
|
|
END
|
|
} else {
|
|
$cause_and_solution = <<END
|
|
@@ cause: not sure, sorry
|
|
END
|
|
}
|
|
|
|
my $warning = <<END
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
@@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@ WARNING @@
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
@@
|
|
@@ Information recorded about lines past the end of '$src_file'.
|
|
@@
|
|
@@ Probable cause and solution:
|
|
$cause_and_solution@@
|
|
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
|
|
END
|
|
;
|
|
print($warning);
|
|
}
|
|
|
|
sub annotate_ann_files($)
|
|
{
|
|
my ($threshold_files) = @_;
|
|
|
|
my %all_ann_files;
|
|
my @unfound_auto_annotate_files;
|
|
my $printed_totals_CC = [];
|
|
|
|
# If auto-annotating, add interesting files (but not "???")
|
|
if ($auto_annotate) {
|
|
delete $threshold_files->{"???"};
|
|
%all_ann_files = (%user_ann_files, %$threshold_files)
|
|
} else {
|
|
%all_ann_files = %user_ann_files;
|
|
}
|
|
|
|
# Track if we did any annotations.
|
|
my $did_annotations = 0;
|
|
|
|
LOOP:
|
|
foreach my $src_file (keys %all_ann_files) {
|
|
|
|
my $opened_file = "";
|
|
my $full_file_name = "";
|
|
foreach my $include_dir (@include_dirs) {
|
|
my $try_name = $include_dir . $src_file;
|
|
if (open(INPUTFILE, "< $try_name")) {
|
|
$opened_file = $try_name;
|
|
$full_file_name = ($include_dir eq ""
|
|
? $src_file
|
|
: "$include_dir + $src_file");
|
|
last;
|
|
}
|
|
}
|
|
|
|
if (not $opened_file) {
|
|
# Failed to open the file. If chosen on the command line, die.
|
|
# If arose from auto-annotation, print a little message.
|
|
if (defined $user_ann_files{$src_file}) {
|
|
die("File $src_file not opened in any of: @include_dirs\n");
|
|
|
|
} else {
|
|
push(@unfound_auto_annotate_files, $src_file);
|
|
}
|
|
|
|
} else {
|
|
# File header (distinguish between user- and auto-selected files).
|
|
print("$fancy");
|
|
my $ann_type =
|
|
(defined $user_ann_files{$src_file} ? "User" : "Auto");
|
|
print("-- $ann_type-annotated source: $full_file_name\n");
|
|
print("$fancy");
|
|
|
|
# Get file's CCs
|
|
my $src_file_CCs = $all_ind_CCs{$src_file};
|
|
if (!defined $src_file_CCs) {
|
|
print(" No information has been collected for $src_file\n\n");
|
|
next LOOP;
|
|
}
|
|
|
|
$did_annotations = 1;
|
|
|
|
# Numeric, not lexicographic sort!
|
|
my @line_nums = sort {$a <=> $b} keys %$src_file_CCs;
|
|
|
|
# If $src_file more recent than cachegrind.out, issue warning
|
|
my $src_more_recent_than_inputfile = 0;
|
|
if ((stat $opened_file)[9] > (stat $input_file)[9]) {
|
|
$src_more_recent_than_inputfile = 1;
|
|
warning_on_src_more_recent_than_inputfile($src_file);
|
|
}
|
|
|
|
# Work out the size of each column for printing
|
|
my $CC_col_widths = compute_CC_col_widths(values %$src_file_CCs);
|
|
|
|
# Events header
|
|
print_events($CC_col_widths);
|
|
print("\n\n");
|
|
|
|
# Shift out 0 if it's in the line numbers (from unknown entries,
|
|
# likely due to bugs in Valgrind's stabs debug info reader)
|
|
shift(@line_nums) if (0 == $line_nums[0]);
|
|
|
|
# Finds interesting line ranges -- all lines with a CC, and all
|
|
# lines within $context lines of a line with a CC.
|
|
my $n = @line_nums;
|
|
my @pairs;
|
|
for (my $i = 0; $i < $n; $i++) {
|
|
push(@pairs, $line_nums[$i] - $context); # lower marker
|
|
while ($i < $n-1 &&
|
|
$line_nums[$i] + 2*$context >= $line_nums[$i+1]) {
|
|
$i++;
|
|
}
|
|
push(@pairs, $line_nums[$i] + $context); # upper marker
|
|
}
|
|
|
|
# Annotate chosen lines, tracking total counts of lines printed
|
|
$pairs[0] = 1 if ($pairs[0] < 1);
|
|
while (@pairs) {
|
|
my $low = shift @pairs;
|
|
my $high = shift @pairs;
|
|
while ($. < $low-1) {
|
|
my $tmp = <INPUTFILE>;
|
|
last unless (defined $tmp); # hack to detect EOF
|
|
}
|
|
my $src_line;
|
|
# Print line number, unless start of file
|
|
print("-- line $low " . '-' x 40 . "\n") if ($low != 1);
|
|
while (($. < $high) && ($src_line = <INPUTFILE>)) {
|
|
if (defined $line_nums[0] && $. == $line_nums[0]) {
|
|
print_CC($src_file_CCs->{$.}, $CC_col_widths);
|
|
add_array_a_to_b($src_file_CCs->{$.},
|
|
$printed_totals_CC);
|
|
shift(@line_nums);
|
|
|
|
} else {
|
|
print_CC( [], $CC_col_widths);
|
|
}
|
|
|
|
print(" $src_line");
|
|
|
|
my $tmp = $called_from_line->{$src_file,$.};
|
|
my $func = $func_of_line{$src_file,$.};
|
|
if (defined $tmp) {
|
|
foreach my $called (keys %$tmp) {
|
|
if (defined $call_CCs{$func,$called,$.}) {
|
|
print_CC($call_CCs{$func,$called,$.}, $CC_col_widths);
|
|
print " => $called (";
|
|
print $call_counter{$func,$called,$.} . "x)\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
# Print line number, unless EOF
|
|
if ($src_line) {
|
|
print("-- line $high " . '-' x 40 . "\n");
|
|
} else {
|
|
last;
|
|
}
|
|
}
|
|
|
|
# If there was info on lines past the end of the file...
|
|
if (@line_nums) {
|
|
foreach my $line_num (@line_nums) {
|
|
print_CC($src_file_CCs->{$line_num}, $CC_col_widths);
|
|
print(" <bogus line $line_num>\n");
|
|
}
|
|
print("\n");
|
|
warning_on_nonexistent_lines($src_more_recent_than_inputfile,
|
|
$src_file, \@line_nums);
|
|
}
|
|
print("\n");
|
|
|
|
# Print summary of counts attributed to file but not to any
|
|
# particular line (due to incomplete debug info).
|
|
if ($src_file_CCs->{0}) {
|
|
print_CC($src_file_CCs->{0}, $CC_col_widths);
|
|
print(" <counts for unidentified lines in $src_file>\n\n");
|
|
}
|
|
|
|
close(INPUTFILE);
|
|
}
|
|
}
|
|
|
|
# Print list of unfound auto-annotate selected files.
|
|
if (@unfound_auto_annotate_files) {
|
|
print("$fancy");
|
|
print("The following files chosen for auto-annotation could not be found:\n");
|
|
print($fancy);
|
|
foreach my $f (@unfound_auto_annotate_files) {
|
|
print(" $f\n");
|
|
}
|
|
print("\n");
|
|
}
|
|
|
|
# If we did any annotating, print what proportion of events were covered by
|
|
# annotated lines above.
|
|
if ($did_annotations) {
|
|
my $percent_printed_CC;
|
|
foreach (my $i = 0; $i < @$summary_CC; $i++) {
|
|
$percent_printed_CC->[$i] =
|
|
sprintf("%.0f",
|
|
$printed_totals_CC->[$i] / $summary_CC->[$i] * 100);
|
|
}
|
|
my $pp_CC_col_widths = compute_CC_col_widths($percent_printed_CC);
|
|
print($fancy);
|
|
print_events($pp_CC_col_widths);
|
|
print("\n");
|
|
print($fancy);
|
|
print_CC($percent_printed_CC, $pp_CC_col_widths);
|
|
print(" percentage of events annotated\n\n");
|
|
}
|
|
}
|
|
|
|
#----------------------------------------------------------------------------
|
|
# "main()"
|
|
#----------------------------------------------------------------------------
|
|
process_cmd_line();
|
|
read_input_file();
|
|
print_options();
|
|
my $threshold_files = print_summary_and_fn_totals();
|
|
annotate_ann_files($threshold_files);
|
|
|
|
##--------------------------------------------------------------------##
|
|
##--- end vg_annotate.in ---##
|
|
##--------------------------------------------------------------------##
|
|
|
|
|