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authorRemko Tronçon <git@el-tramo.be>2011-02-18 17:59:47 (GMT)
committerRemko Tronçon <git@el-tramo.be>2011-02-18 18:10:35 (GMT)
commit2f6c2299c28c9bb03ee1437058a4c7071ff2ac3f (patch)
tree5fb82cd3ea77b82ce0c5fec973e1fee4de1def4b /3rdParty/LCov/lcov
parent6d115ace1a038acd1a4354391c552bef84d67e79 (diff)
downloadswift-contrib-2f6c2299c28c9bb03ee1437058a4c7071ff2ac3f.zip
swift-contrib-2f6c2299c28c9bb03ee1437058a4c7071ff2ac3f.tar.bz2
Updated coverage tools.
Updated LCov to 1.9. Removed obsolete overview script.
Diffstat (limited to '3rdParty/LCov/lcov')
-rwxr-xr-x3rdParty/LCov/lcov2120
1 files changed, 1798 insertions, 322 deletions
diff --git a/3rdParty/LCov/lcov b/3rdParty/LCov/lcov
index 6304d75..4e392ff 100755
--- a/3rdParty/LCov/lcov
+++ b/3rdParty/LCov/lcov
@@ -1,6 +1,6 @@
#!/usr/bin/perl -w
#
-# Copyright (c) International Business Machines Corp., 2002,2007
+# Copyright (c) International Business Machines Corp., 2002,2010
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
@@ -60,36 +60,43 @@
#
use strict;
-use File::Basename;
+use File::Basename;
+use File::Path;
+use File::Find;
+use File::Temp qw /tempdir/;
+use File::Spec::Functions qw /abs2rel canonpath catdir catfile catpath
+ file_name_is_absolute rootdir splitdir splitpath/;
use Getopt::Long;
+use Cwd qw /abs_path getcwd/;
# Global constants
-our $lcov_version = "LCOV version 1.7";
+our $lcov_version = 'LCOV version 1.9';
our $lcov_url = "http://ltp.sourceforge.net/coverage/lcov.php";
our $tool_name = basename($0);
-# Names of the GCOV kernel module
-our @gcovmod = ("gcov-prof", "gcov-proc");
-
# Directory containing gcov kernel files
-our $gcov_dir = "/proc/gcov";
-
-# The location of the insmod tool
-our $insmod_tool = "/sbin/insmod";
-
-# The location of the modprobe tool
-our $modprobe_tool = "/sbin/modprobe";
-
-# The location of the rmmod tool
-our $rmmod_tool = "/sbin/rmmod";
+our $gcov_dir;
# Where to create temporary directories
-our $tmp_dir = "/tmp";
+our $tmp_dir;
+
+# Internal constants
+our $GKV_PROC = 0; # gcov-kernel data in /proc via external patch
+our $GKV_SYS = 1; # gcov-kernel data in /sys via vanilla 2.6.31+
+our @GKV_NAME = ( "external", "upstream" );
+our $pkg_gkv_file = ".gcov_kernel_version";
+our $pkg_build_file = ".build_directory";
-# How to prefix a temporary directory name
-our $tmp_prefix = "tmpdir";
+our $BR_BLOCK = 0;
+our $BR_BRANCH = 1;
+our $BR_TAKEN = 2;
+our $BR_VEC_ENTRIES = 3;
+our $BR_VEC_WIDTH = 32;
+# Branch data combination types
+our $BR_SUB = 0;
+our $BR_ADD = 1;
# Prototypes
sub print_usage(*);
@@ -98,10 +105,12 @@ sub userspace_reset();
sub userspace_capture();
sub kernel_reset();
sub kernel_capture();
+sub kernel_capture_initial();
+sub package_capture();
sub add_traces();
sub read_info_file($);
sub get_info_entry($);
-sub set_info_entry($$$$$$$;$$$$);
+sub set_info_entry($$$$$$$$$;$$$$$$);
sub add_counts($$);
sub merge_checksums($$$);
sub combine_info_entries($$$);
@@ -117,13 +126,19 @@ sub system_no_output($@);
sub read_config($);
sub apply_config($);
sub info(@);
-sub unload_module($);
-sub check_and_load_kernel_module();
sub create_temp_dir();
sub transform_pattern($);
sub warn_handler($);
sub die_handler($);
-
+sub abort_handler($);
+sub temp_cleanup();
+sub setup_gkv();
+sub get_overall_line($$$$);
+sub print_overall_rate($$$$$$$$$);
+sub lcov_geninfo(@);
+sub create_package($$$;$);
+sub get_func_found_and_hit($);
+sub br_ivec_get($$);
# Global variables & initialization
our @directory; # Specifies where to get coverage data from
@@ -142,7 +157,6 @@ our $help; # Help option flag
our $version; # Version option flag
our $convert_filenames; # If set, convert filenames when applying diff
our $strip; # If set, strip leading directories when applying diff
-our $need_unload; # If set, unload gcov kernel module
our $temp_dir_name; # Name of temporary directory
our $cwd = `pwd`; # Current working directory
our $to_file; # If set, indicates that output is written to a file
@@ -157,10 +171,27 @@ our $gcov_tool;
our $ignore_errors;
our $initial;
our $no_recursion = 0;
+our $to_package;
+our $from_package;
our $maxdepth;
+our $no_markers;
our $config; # Configuration file contents
chomp($cwd);
our $tool_dir = dirname($0); # Directory where genhtml tool is installed
+our @temp_dirs;
+our $gcov_gkv; # gcov kernel support version found on machine
+our $opt_derive_func_data;
+our $opt_debug;
+our $opt_list_full_path;
+our $opt_no_list_full_path;
+our $opt_list_width = 80;
+our $opt_list_truncate_max = 20;
+our $ln_overall_found;
+our $ln_overall_hit;
+our $fn_overall_found;
+our $fn_overall_hit;
+our $br_overall_found;
+our $br_overall_hit;
#
@@ -169,6 +200,11 @@ our $tool_dir = dirname($0); # Directory where genhtml tool is installed
$SIG{__WARN__} = \&warn_handler;
$SIG{__DIE__} = \&die_handler;
+$SIG{'INT'} = \&abort_handler;
+$SIG{'QUIT'} = \&abort_handler;
+
+# Prettify version string
+$lcov_version =~ s/\$\s*Revision\s*:?\s*(\S+)\s*\$/$1/;
# Add current working directory if $tool_dir is not already an absolute path
if (! ($tool_dir =~ /^\/(.*)$/))
@@ -177,7 +213,7 @@ if (! ($tool_dir =~ /^\/(.*)$/))
}
# Read configuration file if available
-if (-r $ENV{"HOME"}."/.lcovrc")
+if (defined($ENV{"HOME"}) && (-r $ENV{"HOME"}."/.lcovrc"))
{
$config = read_config($ENV{"HOME"}."/.lcovrc");
}
@@ -191,32 +227,33 @@ if ($config)
# Copy configuration file values to variables
apply_config({
"lcov_gcov_dir" => \$gcov_dir,
- "lcov_insmod_tool" => \$insmod_tool,
- "lcov_modprobe_tool" => \$modprobe_tool,
- "lcov_rmmod_tool" => \$rmmod_tool,
- "lcov_tmp_dir" => \$tmp_dir});
+ "lcov_tmp_dir" => \$tmp_dir,
+ "lcov_list_full_path" => \$opt_list_full_path,
+ "lcov_list_width" => \$opt_list_width,
+ "lcov_list_truncate_max"=> \$opt_list_truncate_max,
+ });
}
# Parse command line options
if (!GetOptions("directory|d|di=s" => \@directory,
- "add-tracefile=s" => \@add_tracefile,
- "list=s" => \$list,
- "kernel-directory=s" => \@kernel_directory,
- "extract=s" => \$extract,
- "remove=s" => \$remove,
+ "add-tracefile|a=s" => \@add_tracefile,
+ "list|l=s" => \$list,
+ "kernel-directory|k=s" => \@kernel_directory,
+ "extract|e=s" => \$extract,
+ "remove|r=s" => \$remove,
"diff=s" => \$diff,
"convert-filenames" => \$convert_filenames,
"strip=i" => \$strip,
"capture|c" => \$capture,
- "output-file=s" => \$output_filename,
- "test-name=s" => \$test_name,
- "zerocounters" => \$reset,
- "quiet" => \$quiet,
- "help|?" => \$help,
- "version" => \$version,
- "follow" => \$follow,
+ "output-file|o=s" => \$output_filename,
+ "test-name|t=s" => \$test_name,
+ "zerocounters|z" => \$reset,
+ "quiet|q" => \$quiet,
+ "help|h|?" => \$help,
+ "version|v" => \$version,
+ "follow|f" => \$follow,
"path=s" => \$diff_path,
- "base-directory=s" => \$base_directory,
+ "base-directory|b=s" => \$base_directory,
"checksum" => \$checksum,
"no-checksum" => \$no_checksum,
"compat-libtool" => \$compat_libtool,
@@ -224,7 +261,14 @@ if (!GetOptions("directory|d|di=s" => \@directory,
"gcov-tool=s" => \$gcov_tool,
"ignore-errors=s" => \$ignore_errors,
"initial|i" => \$initial,
- "no-recursion" => \$no_recursion
+ "no-recursion" => \$no_recursion,
+ "to-package=s" => \$to_package,
+ "from-package=s" => \$from_package,
+ "no-markers" => \$no_markers,
+ "derive-func-data" => \$opt_derive_func_data,
+ "debug" => \$opt_debug,
+ "list-full-path" => \$opt_list_full_path,
+ "no-list-full-path" => \$opt_no_list_full_path,
))
{
print(STDERR "Use $tool_name --help to get usage information\n");
@@ -244,6 +288,12 @@ else
$compat_libtool = ($no_compat_libtool ? 0 : 1);
$no_compat_libtool = undef;
}
+
+ if (defined($opt_no_list_full_path))
+ {
+ $opt_list_full_path = ($opt_no_list_full_path ? 0 : 1);
+ $opt_no_list_full_path = undef;
+ }
}
# Check for help option
@@ -260,6 +310,12 @@ if ($version)
exit(0);
}
+# Check list width option
+if ($opt_list_width <= 40) {
+ die("ERROR: lcov_list_width parameter out of range (needs to be ".
+ "larger than 40)\n");
+}
+
# Normalize --path text
$diff_path =~ s/\/$//;
@@ -287,7 +343,7 @@ check_options();
# Only --extract, --remove and --diff allow unnamed parameters
if (@ARGV && !($extract || $remove || $diff))
{
- die("Extra parameter found\n".
+ die("Extra parameter found: '".join(" ", @ARGV)."'\n".
"Use $tool_name --help to get usage information\n");
}
@@ -302,13 +358,10 @@ if ($capture)
$output_filename = "-";
}
}
-else
-{
- if ($initial)
- {
- die("Option --initial is only valid when capturing data (-c)\n".
- "Use $tool_name --help to get usage information\n");
- }
+
+# Determine kernel directory for gcov data
+if (!$from_package && !@directory && ($capture || $reset)) {
+ ($gcov_gkv, $gcov_dir) = setup_gkv();
}
# Check for requested functionality
@@ -326,27 +379,40 @@ if ($reset)
}
elsif ($capture)
{
- # Differentiate between user space and kernel
- if (@directory)
- {
+ # Capture source can be user space, kernel or package
+ if ($from_package) {
+ package_capture();
+ } elsif (@directory) {
userspace_capture();
- }
- else
- {
- kernel_capture();
+ } else {
+ if ($initial) {
+ if (defined($to_package)) {
+ die("ERROR: --initial cannot be used together ".
+ "with --to-package\n");
+ }
+ kernel_capture_initial();
+ } else {
+ kernel_capture();
+ }
}
}
elsif (@add_tracefile)
{
- add_traces();
+ ($ln_overall_found, $ln_overall_hit,
+ $fn_overall_found, $fn_overall_hit,
+ $br_overall_found, $br_overall_hit) = add_traces();
}
elsif ($remove)
{
- remove();
+ ($ln_overall_found, $ln_overall_hit,
+ $fn_overall_found, $fn_overall_hit,
+ $br_overall_found, $br_overall_hit) = remove();
}
elsif ($extract)
{
- extract();
+ ($ln_overall_found, $ln_overall_hit,
+ $fn_overall_found, $fn_overall_hit,
+ $br_overall_found, $br_overall_hit) = extract();
}
elsif ($list)
{
@@ -359,10 +425,20 @@ elsif ($diff)
die("ERROR: option --diff requires one additional argument!\n".
"Use $tool_name --help to get usage information\n");
}
- diff();
+ ($ln_overall_found, $ln_overall_hit,
+ $fn_overall_found, $fn_overall_hit,
+ $br_overall_found, $br_overall_hit) = diff();
}
-info("Done.\n");
+temp_cleanup();
+
+if (defined($ln_overall_found)) {
+ print_overall_rate(1, $ln_overall_found, $ln_overall_hit,
+ 1, $fn_overall_found, $fn_overall_hit,
+ 1, $br_overall_found, $br_overall_hit);
+} else {
+ info("Done.\n") if (!$list && !$capture);
+}
exit(0);
#
@@ -410,8 +486,13 @@ Options:
--(no-)checksum Enable (disable) line checksumming
--(no-)compat-libtool Enable (disable) libtool compatibility mode
--gcov-tool TOOL Specify gcov tool location
- --ignore-errors ERRORS Continue after ERRORS (gcov, source)
- --no-recursion Exlude subdirectories from processing
+ --ignore-errors ERRORS Continue after ERRORS (gcov, source, graph)
+ --no-recursion Exclude subdirectories from processing
+ --to-package FILENAME Store unprocessed coverage data in FILENAME
+ --from-package FILENAME Capture from unprocessed data in FILENAME
+ --no-markers Ignore exclusion markers in source code
+ --derive-func-data Generate function data from line data
+ --list-full-path Print full path during a list operation
For more information see: $lcov_url
END_OF_USAGE
@@ -483,19 +564,197 @@ sub userspace_reset()
#
# userspace_capture()
#
-# Capture coverage data found in DIRECTORY and write it to OUTPUT_FILENAME
-# if specified, otherwise to STDOUT.
+# Capture coverage data found in DIRECTORY and write it to a package (if
+# TO_PACKAGE specified) or to OUTPUT_FILENAME or STDOUT.
#
# Die on error.
#
sub userspace_capture()
{
+ my $dir;
+ my $build;
+
+ if (!defined($to_package)) {
+ lcov_geninfo(@directory);
+ return;
+ }
+ if (scalar(@directory) != 1) {
+ die("ERROR: -d may be specified only once with --to-package\n");
+ }
+ $dir = $directory[0];
+ if (defined($base_directory)) {
+ $build = $base_directory;
+ } else {
+ $build = $dir;
+ }
+ create_package($to_package, $dir, $build);
+}
+
+
+#
+# kernel_reset()
+#
+# Reset kernel coverage.
+#
+# Die on error.
+#
+
+sub kernel_reset()
+{
+ local *HANDLE;
+ my $reset_file;
+
+ info("Resetting kernel execution counters\n");
+ if (-e "$gcov_dir/vmlinux") {
+ $reset_file = "$gcov_dir/vmlinux";
+ } elsif (-e "$gcov_dir/reset") {
+ $reset_file = "$gcov_dir/reset";
+ } else {
+ die("ERROR: no reset control found in $gcov_dir\n");
+ }
+ open(HANDLE, ">$reset_file") or
+ die("ERROR: cannot write to $reset_file!\n");
+ print(HANDLE "0");
+ close(HANDLE);
+}
+
+
+#
+# lcov_copy_single(from, to)
+#
+# Copy single regular file FROM to TO without checking its size. This is
+# required to work with special files generated by the kernel
+# seq_file-interface.
+#
+#
+sub lcov_copy_single($$)
+{
+ my ($from, $to) = @_;
+ my $content;
+ local $/;
+ local *HANDLE;
+
+ open(HANDLE, "<$from") or die("ERROR: cannot read $from: $!\n");
+ $content = <HANDLE>;
+ close(HANDLE);
+ open(HANDLE, ">$to") or die("ERROR: cannot write $from: $!\n");
+ if (defined($content)) {
+ print(HANDLE $content);
+ }
+ close(HANDLE);
+}
+
+#
+# lcov_find(dir, function, data[, extension, ...)])
+#
+# Search DIR for files and directories whose name matches PATTERN and run
+# FUNCTION for each match. If not pattern is specified, match all names.
+#
+# FUNCTION has the following prototype:
+# function(dir, relative_name, data)
+#
+# Where:
+# dir: the base directory for this search
+# relative_name: the name relative to the base directory of this entry
+# data: the DATA variable passed to lcov_find
+#
+sub lcov_find($$$;@)
+{
+ my ($dir, $fn, $data, @pattern) = @_;
+ my $result;
+ my $_fn = sub {
+ my $filename = $File::Find::name;
+
+ if (defined($result)) {
+ return;
+ }
+ $filename = abs2rel($filename, $dir);
+ foreach (@pattern) {
+ if ($filename =~ /$_/) {
+ goto ok;
+ }
+ }
+ return;
+ ok:
+ $result = &$fn($dir, $filename, $data);
+ };
+ if (scalar(@pattern) == 0) {
+ @pattern = ".*";
+ }
+ find( { wanted => $_fn, no_chdir => 1 }, $dir);
+
+ return $result;
+}
+
+#
+# lcov_copy_fn(from, rel, to)
+#
+# Copy directories, files and links from/rel to to/rel.
+#
+
+sub lcov_copy_fn($$$)
+{
+ my ($from, $rel, $to) = @_;
+ my $absfrom = canonpath(catfile($from, $rel));
+ my $absto = canonpath(catfile($to, $rel));
+
+ if (-d) {
+ if (! -d $absto) {
+ mkpath($absto) or
+ die("ERROR: cannot create directory $absto\n");
+ chmod(0700, $absto);
+ }
+ } elsif (-l) {
+ # Copy symbolic link
+ my $link = readlink($absfrom);
+
+ if (!defined($link)) {
+ die("ERROR: cannot read link $absfrom: $!\n");
+ }
+ symlink($link, $absto) or
+ die("ERROR: cannot create link $absto: $!\n");
+ } else {
+ lcov_copy_single($absfrom, $absto);
+ chmod(0600, $absto);
+ }
+ return undef;
+}
+
+#
+# lcov_copy(from, to, subdirs)
+#
+# Copy all specified SUBDIRS and files from directory FROM to directory TO. For
+# regular files, copy file contents without checking its size. This is required
+# to work with seq_file-generated files.
+#
+
+sub lcov_copy($$;@)
+{
+ my ($from, $to, @subdirs) = @_;
+ my @pattern;
+
+ foreach (@subdirs) {
+ push(@pattern, "^$_");
+ }
+ lcov_find($from, \&lcov_copy_fn, $to, @pattern);
+}
+
+#
+# lcov_geninfo(directory)
+#
+# Call geninfo for the specified directory and with the parameters specified
+# at the command line.
+#
+
+sub lcov_geninfo(@)
+{
+ my (@dir) = @_;
my @param;
- my $file_list = join(" ", @directory);
- info("Capturing coverage data from $file_list\n");
- @param = ("$tool_dir/geninfo", @directory);
+ # Capture data
+ info("Capturing coverage data from ".join(" ", @dir)."\n");
+ @param = ("$tool_dir/geninfo", @dir);
if ($output_filename)
{
@param = (@param, "--output-filename", $output_filename);
@@ -547,172 +806,443 @@ sub userspace_capture()
{
@param = (@param, "--initial");
}
- if ($no_recursion)
+ if ($no_markers)
{
- @param = (@param, "--no-recursion");
+ @param = (@param, "--no-markers");
}
-
- system(@param);
- exit($? >> 8);
+ if ($opt_derive_func_data)
+ {
+ @param = (@param, "--derive-func-data");
+ }
+ if ($opt_debug)
+ {
+ @param = (@param, "--debug");
+ }
+ system(@param) and exit($? >> 8);
}
-
#
-# kernel_reset()
+# read_file(filename)
#
-# Reset kernel coverage.
-#
-# Die on error.
+# Return the contents of the file defined by filename.
#
-sub kernel_reset()
+sub read_file($)
{
+ my ($filename) = @_;
+ my $content;
+ local $\;
local *HANDLE;
- check_and_load_kernel_module();
- info("Resetting kernel execution counters\n");
- open(HANDLE, ">$gcov_dir/vmlinux") or
- die("ERROR: cannot write to $gcov_dir/vmlinux!\n");
- print(HANDLE "0");
+ open(HANDLE, "<$filename") || return undef;
+ $content = <HANDLE>;
close(HANDLE);
- # Unload module if we loaded it in the first place
- if ($need_unload)
- {
- unload_module($need_unload);
- }
+ return $content;
}
+#
+# get_package(package_file)
+#
+# Unpack unprocessed coverage data files from package_file to a temporary
+# directory and return directory name, build directory and gcov kernel version
+# as found in package.
+#
+
+sub get_package($)
+{
+ my ($file) = @_;
+ my $dir = create_temp_dir();
+ my $gkv;
+ my $build;
+ my $cwd = getcwd();
+ my $count;
+ local *HANDLE;
+
+ info("Reading package $file:\n");
+ info(" data directory .......: $dir\n");
+ $file = abs_path($file);
+ chdir($dir);
+ open(HANDLE, "tar xvfz $file 2>/dev/null|")
+ or die("ERROR: could not process package $file\n");
+ while (<HANDLE>) {
+ if (/\.da$/ || /\.gcda$/) {
+ $count++;
+ }
+ }
+ close(HANDLE);
+ $build = read_file("$dir/$pkg_build_file");
+ if (defined($build)) {
+ info(" build directory ......: $build\n");
+ }
+ $gkv = read_file("$dir/$pkg_gkv_file");
+ if (defined($gkv)) {
+ $gkv = int($gkv);
+ if ($gkv != $GKV_PROC && $gkv != $GKV_SYS) {
+ die("ERROR: unsupported gcov kernel version found ".
+ "($gkv)\n");
+ }
+ info(" content type .........: kernel data\n");
+ info(" gcov kernel version ..: %s\n", $GKV_NAME[$gkv]);
+ } else {
+ info(" content type .........: application data\n");
+ }
+ info(" data files ...........: $count\n");
+ chdir($cwd);
+
+ return ($dir, $build, $gkv);
+}
#
-# kernel_capture()
+# write_file(filename, $content)
#
-# Capture kernel coverage data and write it to OUTPUT_FILENAME if specified,
-# otherwise stdout.
+# Create a file named filename and write the specified content to it.
#
-sub kernel_capture()
+sub write_file($$)
{
- my @param;
+ my ($filename, $content) = @_;
+ local *HANDLE;
- check_and_load_kernel_module();
+ open(HANDLE, ">$filename") || return 0;
+ print(HANDLE $content);
+ close(HANDLE) || return 0;
- # Make sure the temporary directory is removed upon script termination
- END
- {
- if ($temp_dir_name)
- {
- stat($temp_dir_name);
- if (-r _)
- {
- info("Removing temporary directory ".
- "$temp_dir_name\n");
-
- # Remove temporary directory
- system("rm", "-rf", $temp_dir_name)
- and warn("WARNING: cannot remove ".
- "temporary directory ".
- "$temp_dir_name!\n");
- }
+ return 1;
+}
+
+# count_package_data(filename)
+#
+# Count the number of coverage data files in the specified package file.
+#
+
+sub count_package_data($)
+{
+ my ($filename) = @_;
+ local *HANDLE;
+ my $count = 0;
+
+ open(HANDLE, "tar tfz $filename|") or return undef;
+ while (<HANDLE>) {
+ if (/\.da$/ || /\.gcda$/) {
+ $count++;
}
}
+ close(HANDLE);
+ return $count;
+}
- # Get temporary directory
- $temp_dir_name = create_temp_dir();
-
- info("Copying kernel data to temporary directory $temp_dir_name\n");
+#
+# create_package(package_file, source_directory, build_directory[,
+# kernel_gcov_version])
+#
+# Store unprocessed coverage data files from source_directory to package_file.
+#
- if (!@kernel_directory)
- {
- # Copy files from gcov kernel directory
- system("cp", "-dr", $gcov_dir, $temp_dir_name)
- and die("ERROR: cannot copy files from $gcov_dir!\n");
+sub create_package($$$;$)
+{
+ my ($file, $dir, $build, $gkv) = @_;
+ my $cwd = getcwd();
+
+ # Print information about the package
+ info("Creating package $file:\n");
+ info(" data directory .......: $dir\n");
+
+ # Handle build directory
+ if (defined($build)) {
+ info(" build directory ......: $build\n");
+ write_file("$dir/$pkg_build_file", $build)
+ or die("ERROR: could not write to ".
+ "$dir/$pkg_build_file\n");
}
- else
- {
- # Prefix list of kernel sub-directories with the gcov kernel
- # directory
- @kernel_directory = map("$gcov_dir/$_", @kernel_directory);
- # Copy files from gcov kernel directory
- system("cp", "-dr", @kernel_directory, $temp_dir_name)
- and die("ERROR: cannot copy files from ".
- join(" ", @kernel_directory)."!\n");
+ # Handle gcov kernel version data
+ if (defined($gkv)) {
+ info(" content type .........: kernel data\n");
+ info(" gcov kernel version ..: %s\n", $GKV_NAME[$gkv]);
+ write_file("$dir/$pkg_gkv_file", $gkv)
+ or die("ERROR: could not write to ".
+ "$dir/$pkg_gkv_file\n");
+ } else {
+ info(" content type .........: application data\n");
}
- # Make directories writable
- system("find", $temp_dir_name, "-type", "d", "-exec", "chmod", "u+w",
- "{}", ";")
- and die("ERROR: cannot modify access rights for ".
- "$temp_dir_name!\n");
+ # Create package
+ $file = abs_path($file);
+ chdir($dir);
+ system("tar cfz $file .")
+ and die("ERROR: could not create package $file\n");
- # Make files writable
- system("find", $temp_dir_name, "-type", "f", "-exec", "chmod", "u+w",
- "{}", ";")
- and die("ERROR: cannot modify access rights for ".
- "$temp_dir_name!\n");
+ # Remove temporary files
+ unlink("$dir/$pkg_build_file");
+ unlink("$dir/$pkg_gkv_file");
- # Capture data
- info("Capturing coverage data from $temp_dir_name\n");
- @param = ("$tool_dir/geninfo", $temp_dir_name);
- if ($output_filename)
- {
- @param = (@param, "--output-filename", $output_filename);
+ # Show number of data files
+ if (!$quiet) {
+ my $count = count_package_data($file);
+
+ if (defined($count)) {
+ info(" data files ...........: $count\n");
+ }
}
- if ($test_name)
- {
- @param = (@param, "--test-name", $test_name);
+ chdir($cwd);
+}
+
+sub find_link_fn($$$)
+{
+ my ($from, $rel, $filename) = @_;
+ my $absfile = catfile($from, $rel, $filename);
+
+ if (-l $absfile) {
+ return $absfile;
}
- if ($follow)
- {
- @param = (@param, "--follow");
+ return undef;
+}
+
+#
+# get_base(dir)
+#
+# Return (BASE, OBJ), where
+# - BASE: is the path to the kernel base directory relative to dir
+# - OBJ: is the absolute path to the kernel build directory
+#
+
+sub get_base($)
+{
+ my ($dir) = @_;
+ my $marker = "kernel/gcov/base.gcno";
+ my $markerfile;
+ my $sys;
+ my $obj;
+ my $link;
+
+ $markerfile = lcov_find($dir, \&find_link_fn, $marker);
+ if (!defined($markerfile)) {
+ return (undef, undef);
}
- if ($quiet)
- {
- @param = (@param, "--quiet");
+
+ # sys base is parent of parent of markerfile.
+ $sys = abs2rel(dirname(dirname(dirname($markerfile))), $dir);
+
+ # obj base is parent of parent of markerfile link target.
+ $link = readlink($markerfile);
+ if (!defined($link)) {
+ die("ERROR: could not read $markerfile\n");
}
- if (defined($checksum))
- {
- if ($checksum)
- {
- @param = (@param, "--checksum");
+ $obj = dirname(dirname(dirname($link)));
+
+ return ($sys, $obj);
+}
+
+#
+# apply_base_dir(data_dir, base_dir, build_dir, @directories)
+#
+# Make entries in @directories relative to data_dir.
+#
+
+sub apply_base_dir($$$@)
+{
+ my ($data, $base, $build, @dirs) = @_;
+ my $dir;
+ my @result;
+
+ foreach $dir (@dirs) {
+ # Is directory path relative to data directory?
+ if (-d catdir($data, $dir)) {
+ push(@result, $dir);
+ next;
}
- else
- {
- @param = (@param, "--no-checksum");
+ # Relative to the auto-detected base-directory?
+ if (defined($base)) {
+ if (-d catdir($data, $base, $dir)) {
+ push(@result, catdir($base, $dir));
+ next;
+ }
+ }
+ # Relative to the specified base-directory?
+ if (defined($base_directory)) {
+ if (file_name_is_absolute($base_directory)) {
+ $base = abs2rel($base_directory, rootdir());
+ } else {
+ $base = $base_directory;
+ }
+ if (-d catdir($data, $base, $dir)) {
+ push(@result, catdir($base, $dir));
+ next;
+ }
}
+ # Relative to the build directory?
+ if (defined($build)) {
+ if (file_name_is_absolute($build)) {
+ $base = abs2rel($build, rootdir());
+ } else {
+ $base = $build;
+ }
+ if (-d catdir($data, $base, $dir)) {
+ push(@result, catdir($base, $dir));
+ next;
+ }
+ }
+ die("ERROR: subdirectory $dir not found\n".
+ "Please use -b to specify the correct directory\n");
}
- if ($base_directory)
- {
- @param = (@param, "--base-directory", $base_directory);
+ return @result;
+}
+
+#
+# copy_gcov_dir(dir, [@subdirectories])
+#
+# Create a temporary directory and copy all or, if specified, only some
+# subdirectories from dir to that directory. Return the name of the temporary
+# directory.
+#
+
+sub copy_gcov_dir($;@)
+{
+ my ($data, @dirs) = @_;
+ my $tempdir = create_temp_dir();
+
+ info("Copying data to temporary directory $tempdir\n");
+ lcov_copy($data, $tempdir, @dirs);
+
+ return $tempdir;
+}
+
+#
+# kernel_capture_initial
+#
+# Capture initial kernel coverage data, i.e. create a coverage data file from
+# static graph files which contains zero coverage data for all instrumented
+# lines.
+#
+
+sub kernel_capture_initial()
+{
+ my $build;
+ my $source;
+ my @params;
+
+ if (defined($base_directory)) {
+ $build = $base_directory;
+ $source = "specified";
+ } else {
+ (undef, $build) = get_base($gcov_dir);
+ if (!defined($build)) {
+ die("ERROR: could not auto-detect build directory.\n".
+ "Please use -b to specify the build directory\n");
+ }
+ $source = "auto-detected";
}
- if ($no_compat_libtool)
- {
- @param = (@param, "--no-compat-libtool");
+ info("Using $build as kernel build directory ($source)\n");
+ # Build directory needs to be passed to geninfo
+ $base_directory = $build;
+ if (@kernel_directory) {
+ foreach my $dir (@kernel_directory) {
+ push(@params, "$build/$dir");
+ }
+ } else {
+ push(@params, $build);
}
- elsif ($compat_libtool)
- {
- @param = (@param, "--compat-libtool");
+ lcov_geninfo(@params);
+}
+
+#
+# kernel_capture_from_dir(directory, gcov_kernel_version, build)
+#
+# Perform the actual kernel coverage capturing from the specified directory
+# assuming that the data was copied from the specified gcov kernel version.
+#
+
+sub kernel_capture_from_dir($$$)
+{
+ my ($dir, $gkv, $build) = @_;
+
+ # Create package or coverage file
+ if (defined($to_package)) {
+ create_package($to_package, $dir, $build, $gkv);
+ } else {
+ # Build directory needs to be passed to geninfo
+ $base_directory = $build;
+ lcov_geninfo($dir);
}
- if ($gcov_tool)
- {
- @param = (@param, "--gcov-tool", $gcov_tool);
+}
+
+#
+# adjust_kernel_dir(dir, build)
+#
+# Adjust directories specified with -k so that they point to the directory
+# relative to DIR. Return the build directory if specified or the auto-
+# detected build-directory.
+#
+
+sub adjust_kernel_dir($$)
+{
+ my ($dir, $build) = @_;
+ my ($sys_base, $build_auto) = get_base($dir);
+
+ if (!defined($build)) {
+ $build = $build_auto;
}
- if ($ignore_errors)
- {
- @param = (@param, "--ignore-errors", $ignore_errors);
+ if (!defined($build)) {
+ die("ERROR: could not auto-detect build directory.\n".
+ "Please use -b to specify the build directory\n");
}
- if ($initial)
- {
- @param = (@param, "--initial");
+ # Make @kernel_directory relative to sysfs base
+ if (@kernel_directory) {
+ @kernel_directory = apply_base_dir($dir, $sys_base, $build,
+ @kernel_directory);
}
- system(@param) and exit($? >> 8);
+ return $build;
+}
+sub kernel_capture()
+{
+ my $data_dir;
+ my $build = $base_directory;
- # Unload module if we loaded it in the first place
- if ($need_unload)
- {
- unload_module($need_unload);
+ if ($gcov_gkv == $GKV_SYS) {
+ $build = adjust_kernel_dir($gcov_dir, $build);
+ }
+ $data_dir = copy_gcov_dir($gcov_dir, @kernel_directory);
+ kernel_capture_from_dir($data_dir, $gcov_gkv, $build);
+}
+
+#
+# package_capture()
+#
+# Capture coverage data from a package of unprocessed coverage data files
+# as generated by lcov --to-package.
+#
+
+sub package_capture()
+{
+ my $dir;
+ my $build;
+ my $gkv;
+
+ ($dir, $build, $gkv) = get_package($from_package);
+
+ # Check for build directory
+ if (defined($base_directory)) {
+ if (defined($build)) {
+ info("Using build directory specified by -b.\n");
+ }
+ $build = $base_directory;
+ }
+
+ # Do the actual capture
+ if (defined($gkv)) {
+ if ($gkv == $GKV_SYS) {
+ $build = adjust_kernel_dir($dir, $build);
+ }
+ if (@kernel_directory) {
+ $dir = copy_gcov_dir($dir, @kernel_directory);
+ }
+ kernel_capture_from_dir($dir, $gkv, $build);
+ } else {
+ # Build directory needs to be passed to geninfo
+ $base_directory = $build;
+ lcov_geninfo($dir);
}
}
@@ -731,11 +1261,11 @@ sub info(@)
# Print info string
if ($to_file)
{
- print(@_)
+ printf(@_)
}
else
{
- # Don't interfer with the .info output to STDOUT
+ # Don't interfere with the .info output to STDOUT
printf(STDERR @_);
}
}
@@ -743,133 +1273,209 @@ sub info(@)
#
-# Check if the gcov kernel module is loaded. If it is, exit, if not, try
-# to load it.
+# create_temp_dir()
+#
+# Create a temporary directory and return its path.
#
# Die on error.
#
-sub check_and_load_kernel_module()
+sub create_temp_dir()
{
- my $module_name;
-
- # Is it loaded already?
- stat("$gcov_dir");
- if (-r _) { return(); }
+ my $dir;
- info("Loading required gcov kernel module.\n");
-
- # Do we have access to the insmod tool?
- stat($insmod_tool);
- if (!-x _)
- {
- die("ERROR: need insmod tool ($insmod_tool) to access kernel ".
- "coverage data!\n");
+ if (defined($tmp_dir)) {
+ $dir = tempdir(DIR => $tmp_dir, CLEANUP => 1);
+ } else {
+ $dir = tempdir(CLEANUP => 1);
}
- # Do we have access to the modprobe tool?
- stat($modprobe_tool);
- if (!-x _)
- {
- die("ERROR: need modprobe tool ($modprobe_tool) to access ".
- "kernel coverage data!\n");
+ if (!defined($dir)) {
+ die("ERROR: cannot create temporary directory\n");
}
+ push(@temp_dirs, $dir);
- # Try some possibilities of where the gcov kernel module may be found
- foreach $module_name (@gcovmod)
- {
- # Try to load module from system wide module directory
- # /lib/modules
- if (system_no_output(3, $modprobe_tool, $module_name) == 0)
- {
- # Succeeded
- $need_unload = $module_name;
- return();
- }
+ return $dir;
+}
- # Try to load linux 2.5/2.6 module from tool directory
- if (system_no_output(3, $insmod_tool,
- "$tool_dir/$module_name.ko") == 0)
- {
- # Succeeded
- $need_unload = $module_name;
- return();
- }
- # Try to load linux 2.4 module from tool directory
- if (system_no_output(3, $insmod_tool,
- "$tool_dir/$module_name.o") == 0)
- {
- # Succeeded
- $need_unload = $module_name;
- return();
- }
- }
+#
+# br_taken_to_num(taken)
+#
+# Convert a branch taken value .info format to number format.
+#
- # Hm, loading failed - maybe we aren't root?
- if ($> != 0)
- {
- die("ERROR: need root access to load kernel module!\n");
- }
+sub br_taken_to_num($)
+{
+ my ($taken) = @_;
- die("ERROR: cannot load required gcov kernel module!\n");
+ return 0 if ($taken eq '-');
+ return $taken + 1;
}
#
-# unload_module()
+# br_num_to_taken(taken)
#
-# Unload the gcov kernel module.
+# Convert a branch taken value in number format to .info format.
#
-sub unload_module($)
+sub br_num_to_taken($)
{
- my $module = $_[0];
+ my ($taken) = @_;
- info("Unloading kernel module $module\n");
+ return '-' if ($taken == 0);
+ return $taken - 1;
+}
- # Do we have access to the rmmod tool?
- stat($rmmod_tool);
- if (!-x _)
- {
- warn("WARNING: cannot execute rmmod tool at $rmmod_tool - ".
- "gcov module still loaded!\n");
+
+#
+# br_taken_add(taken1, taken2)
+#
+# Return the result of taken1 + taken2 for 'branch taken' values.
+#
+
+sub br_taken_add($$)
+{
+ my ($t1, $t2) = @_;
+
+ return $t1 if (!defined($t2));
+ return $t2 if (!defined($t1));
+ return $t1 if ($t2 eq '-');
+ return $t2 if ($t1 eq '-');
+ return $t1 + $t2;
+}
+
+
+#
+# br_taken_sub(taken1, taken2)
+#
+# Return the result of taken1 - taken2 for 'branch taken' values. Return 0
+# if the result would become negative.
+#
+
+sub br_taken_sub($$)
+{
+ my ($t1, $t2) = @_;
+
+ return $t1 if (!defined($t2));
+ return undef if (!defined($t1));
+ return $t1 if ($t1 eq '-');
+ return $t1 if ($t2 eq '-');
+ return 0 if $t2 > $t1;
+ return $t1 - $t2;
+}
+
+
+#
+#
+# br_ivec_len(vector)
+#
+# Return the number of entries in the branch coverage vector.
+#
+
+sub br_ivec_len($)
+{
+ my ($vec) = @_;
+
+ return 0 if (!defined($vec));
+ return (length($vec) * 8 / $BR_VEC_WIDTH) / $BR_VEC_ENTRIES;
+}
+
+
+#
+# br_ivec_push(vector, block, branch, taken)
+#
+# Add an entry to the branch coverage vector. If an entry with the same
+# branch ID already exists, add the corresponding taken values.
+#
+
+sub br_ivec_push($$$$)
+{
+ my ($vec, $block, $branch, $taken) = @_;
+ my $offset;
+ my $num = br_ivec_len($vec);
+ my $i;
+
+ $vec = "" if (!defined($vec));
+
+ # Check if branch already exists in vector
+ for ($i = 0; $i < $num; $i++) {
+ my ($v_block, $v_branch, $v_taken) = br_ivec_get($vec, $i);
+
+ next if ($v_block != $block || $v_branch != $branch);
+
+ # Add taken counts
+ $taken = br_taken_add($taken, $v_taken);
+ last;
}
- # Unload gcov kernel module
- system_no_output(1, $rmmod_tool, $module)
- and warn("WARNING: cannot unload gcov kernel module ".
- "$module!\n");
+ $offset = $i * $BR_VEC_ENTRIES;
+ $taken = br_taken_to_num($taken);
+
+ # Add to vector
+ vec($vec, $offset + $BR_BLOCK, $BR_VEC_WIDTH) = $block;
+ vec($vec, $offset + $BR_BRANCH, $BR_VEC_WIDTH) = $branch;
+ vec($vec, $offset + $BR_TAKEN, $BR_VEC_WIDTH) = $taken;
+
+ return $vec;
}
#
-# create_temp_dir()
+# br_ivec_get(vector, number)
#
-# Create a temporary directory and return its path.
+# Return an entry from the branch coverage vector.
#
-# Die on error.
+
+sub br_ivec_get($$)
+{
+ my ($vec, $num) = @_;
+ my $block;
+ my $branch;
+ my $taken;
+ my $offset = $num * $BR_VEC_ENTRIES;
+
+ # Retrieve data from vector
+ $block = vec($vec, $offset + $BR_BLOCK, $BR_VEC_WIDTH);
+ $branch = vec($vec, $offset + $BR_BRANCH, $BR_VEC_WIDTH);
+ $taken = vec($vec, $offset + $BR_TAKEN, $BR_VEC_WIDTH);
+
+ # Decode taken value from an integer
+ $taken = br_num_to_taken($taken);
+
+ return ($block, $branch, $taken);
+}
+
+
+#
+# get_br_found_and_hit(brcount)
+#
+# Return (br_found, br_hit) for brcount
#
-sub create_temp_dir()
+sub get_br_found_and_hit($)
{
- my $dirname;
- my $number = sprintf("%d", rand(1000));
+ my ($brcount) = @_;
+ my $line;
+ my $br_found = 0;
+ my $br_hit = 0;
- # Endless loops are evil
- while ($number++ < 1000)
- {
- $dirname = "$tmp_dir/$tmp_prefix$number";
- stat($dirname);
- if (-e _) { next; }
+ foreach $line (keys(%{$brcount})) {
+ my $brdata = $brcount->{$line};
+ my $i;
+ my $num = br_ivec_len($brdata);
- mkdir($dirname)
- or die("ERROR: cannot create temporary directory ".
- "$dirname!\n");
+ for ($i = 0; $i < $num; $i++) {
+ my $taken;
- return($dirname);
+ (undef, undef, $taken) = br_ivec_get($brdata, $i);
+
+ $br_found++;
+ $br_hit++ if ($taken ne "-" && $taken > 0);
+ }
}
- die("ERROR: cannot create temporary directory in $tmp_dir!\n");
+ return ($br_found, $br_hit);
}
@@ -889,16 +1495,22 @@ sub create_temp_dir()
# "check" -> \%checkdata
# "testfnc" -> \%testfncdata
# "sumfnc" -> \%sumfnccount
+# "testbr" -> \%testbrdata
+# "sumbr" -> \%sumbrcount
#
# %testdata : name of test affecting this file -> \%testcount
# %testfncdata: name of test affecting this file -> \%testfnccount
+# %testbrdata: name of test affecting this file -> \%testbrcount
#
# %testcount : line number -> execution count for a single test
# %testfnccount: function name -> execution count for a single test
+# %testbrcount : line number -> branch coverage data for a single test
# %sumcount : line number -> execution count for all tests
# %sumfnccount : function name -> execution count for all tests
+# %sumbrcount : line number -> branch coverage data for all tests
# %funcdata : function name -> line number
# %checkdata : line number -> checksum of source code line
+# $brdata : vector of items: block, branch, taken
#
# Note that .info file sections referring to the same file and test name
# will automatically be combined by adding all execution counts.
@@ -923,6 +1535,9 @@ sub read_info_file($)
my $testfncdata;
my $testfnccount;
my $sumfnccount;
+ my $testbrdata;
+ my $testbrcount;
+ my $sumbrcount;
my $line; # Current line read from .info file
my $testname; # Current test name
my $filename; # Current filename
@@ -981,7 +1596,7 @@ sub read_info_file($)
# Switch statement
foreach ($line)
{
- /^TN:([^,]*)/ && do
+ /^TN:([^,]*)(,diff)?/ && do
{
# Test name information found
$testname = defined($1) ? $1 : "";
@@ -989,6 +1604,7 @@ sub read_info_file($)
{
$changed_testname = 1;
}
+ $testname .= $2 if (defined($2));
last;
};
@@ -1000,18 +1616,21 @@ sub read_info_file($)
$data = $result{$filename};
($testdata, $sumcount, $funcdata, $checkdata,
- $testfncdata, $sumfnccount) =
+ $testfncdata, $sumfnccount, $testbrdata,
+ $sumbrcount) =
get_info_entry($data);
if (defined($testname))
{
$testcount = $testdata->{$testname};
$testfnccount = $testfncdata->{$testname};
+ $testbrcount = $testbrdata->{$testname};
}
else
{
$testcount = {};
$testfnccount = {};
+ $testbrcount = {};
}
last;
};
@@ -1084,6 +1703,27 @@ sub read_info_file($)
}
last;
};
+
+ /^BRDA:(\d+),(\d+),(\d+),(\d+|-)/ && do {
+ # Branch coverage data found
+ my ($line, $block, $branch, $taken) =
+ ($1, $2, $3, $4);
+
+ $sumbrcount->{$line} =
+ br_ivec_push($sumbrcount->{$line},
+ $block, $branch, $taken);
+
+ # Add test-specific counts
+ if (defined($testname)) {
+ $testbrcount->{$line} =
+ br_ivec_push(
+ $testbrcount->{$line},
+ $block, $branch,
+ $taken);
+ }
+ last;
+ };
+
/^end_of_record/ && do
{
# Found end of section marker
@@ -1096,12 +1736,16 @@ sub read_info_file($)
$testcount;
$testfncdata->{$testname} =
$testfnccount;
+ $testbrdata->{$testname} =
+ $testbrcount;
}
set_info_entry($data, $testdata,
$sumcount, $funcdata,
$checkdata, $testfncdata,
- $sumfnccount);
+ $sumfnccount,
+ $testbrdata,
+ $sumbrcount);
$result{$filename} = $data;
last;
}
@@ -1119,7 +1763,8 @@ sub read_info_file($)
$data = $result{$filename};
($testdata, $sumcount, undef, undef, $testfncdata,
- $sumfnccount) = get_info_entry($data);
+ $sumfnccount, $testbrdata, $sumbrcount) =
+ get_info_entry($data);
# Filter out empty files
if (scalar(keys(%{$sumcount})) == 0)
@@ -1158,6 +1803,14 @@ sub read_info_file($)
}
}
$data->{"f_hit"} = $hitcount;
+
+ # Get found/hit values for branch data
+ {
+ my ($br_found, $br_hit) = get_br_found_and_hit($sumbrcount);
+
+ $data->{"b_found"} = $br_found;
+ $data->{"b_hit"} = $br_hit;
+ }
}
if (scalar(keys(%result)) == 0)
@@ -1185,8 +1838,9 @@ sub read_info_file($)
# Retrieve data from an entry of the structure generated by read_info_file().
# Return a list of references to hashes:
# (test data hash ref, sum count hash ref, funcdata hash ref, checkdata hash
-# ref, testfncdata hash ref, sumfnccount hash ref, lines found, lines hit,
-# functions found, functions hit)
+# ref, testfncdata hash ref, sumfnccount hash ref, testbrdata hash ref,
+# sumbrcount hash ref, lines found, lines hit, functions found,
+# functions hit, branches found, branches hit)
#
sub get_info_entry($)
@@ -1197,26 +1851,32 @@ sub get_info_entry($)
my $checkdata_ref = $_[0]->{"check"};
my $testfncdata = $_[0]->{"testfnc"};
my $sumfnccount = $_[0]->{"sumfnc"};
+ my $testbrdata = $_[0]->{"testbr"};
+ my $sumbrcount = $_[0]->{"sumbr"};
my $lines_found = $_[0]->{"found"};
my $lines_hit = $_[0]->{"hit"};
my $f_found = $_[0]->{"f_found"};
my $f_hit = $_[0]->{"f_hit"};
+ my $br_found = $_[0]->{"b_found"};
+ my $br_hit = $_[0]->{"b_hit"};
return ($testdata_ref, $sumcount_ref, $funcdata_ref, $checkdata_ref,
- $testfncdata, $sumfnccount, $lines_found, $lines_hit,
- $f_found, $f_hit);
+ $testfncdata, $sumfnccount, $testbrdata, $sumbrcount,
+ $lines_found, $lines_hit, $f_found, $f_hit,
+ $br_found, $br_hit);
}
#
# set_info_entry(hash_ref, testdata_ref, sumcount_ref, funcdata_ref,
-# checkdata_ref, testfncdata_ref, sumfcncount_ref[,lines_found,
-# lines_hit, f_found, f_hit])
+# checkdata_ref, testfncdata_ref, sumfcncount_ref,
+# testbrdata_ref, sumbrcount_ref[,lines_found,
+# lines_hit, f_found, f_hit, $b_found, $b_hit])
#
# Update the hash referenced by HASH_REF with the provided data references.
#
-sub set_info_entry($$$$$$$;$$$$)
+sub set_info_entry($$$$$$$$$;$$$$$$)
{
my $data_ref = $_[0];
@@ -1226,11 +1886,15 @@ sub set_info_entry($$$$$$$;$$$$)
$data_ref->{"check"} = $_[4];
$data_ref->{"testfnc"} = $_[5];
$data_ref->{"sumfnc"} = $_[6];
-
- if (defined($_[7])) { $data_ref->{"found"} = $_[7]; }
- if (defined($_[8])) { $data_ref->{"hit"} = $_[8]; }
- if (defined($_[9])) { $data_ref->{"f_found"} = $_[9]; }
- if (defined($_[10])) { $data_ref->{"f_hit"} = $_[10]; }
+ $data_ref->{"testbr"} = $_[7];
+ $data_ref->{"sumbr"} = $_[8];
+
+ if (defined($_[9])) { $data_ref->{"found"} = $_[9]; }
+ if (defined($_[10])) { $data_ref->{"hit"} = $_[10]; }
+ if (defined($_[11])) { $data_ref->{"f_found"} = $_[11]; }
+ if (defined($_[12])) { $data_ref->{"f_hit"} = $_[12]; }
+ if (defined($_[13])) { $data_ref->{"b_found"} = $_[13]; }
+ if (defined($_[14])) { $data_ref->{"b_hit"} = $_[14]; }
}
@@ -1338,7 +2002,9 @@ sub merge_func_data($$$)
my %result;
my $func;
- %result = %{$funcdata1};
+ if (defined($funcdata1)) {
+ %result = %{$funcdata1};
+ }
foreach $func (keys(%{$funcdata2})) {
my $line1 = $result{$func};
@@ -1370,7 +2036,9 @@ sub add_fnccount($$)
my $f_hit;
my $function;
- %result = %{$fnccount1};
+ if (defined($fnccount1)) {
+ %result = %{$fnccount1};
+ }
foreach $function (keys(%{$fnccount2})) {
$result{$function} += $fnccount2->{$function};
}
@@ -1424,6 +2092,167 @@ sub add_testfncdata($$)
return \%result;
}
+
+#
+# brcount_to_db(brcount)
+#
+# Convert brcount data to the following format:
+#
+# db: line number -> block hash
+# block hash: block number -> branch hash
+# branch hash: branch number -> taken value
+#
+
+sub brcount_to_db($)
+{
+ my ($brcount) = @_;
+ my $line;
+ my $db;
+
+ # Add branches from first count to database
+ foreach $line (keys(%{$brcount})) {
+ my $brdata = $brcount->{$line};
+ my $i;
+ my $num = br_ivec_len($brdata);
+
+ for ($i = 0; $i < $num; $i++) {
+ my ($block, $branch, $taken) = br_ivec_get($brdata, $i);
+
+ $db->{$line}->{$block}->{$branch} = $taken;
+ }
+ }
+
+ return $db;
+}
+
+
+#
+# db_to_brcount(db)
+#
+# Convert branch coverage data back to brcount format.
+#
+
+sub db_to_brcount($)
+{
+ my ($db) = @_;
+ my $line;
+ my $brcount = {};
+ my $br_found = 0;
+ my $br_hit = 0;
+
+ # Convert database back to brcount format
+ foreach $line (sort({$a <=> $b} keys(%{$db}))) {
+ my $ldata = $db->{$line};
+ my $brdata;
+ my $block;
+
+ foreach $block (sort({$a <=> $b} keys(%{$ldata}))) {
+ my $bdata = $ldata->{$block};
+ my $branch;
+
+ foreach $branch (sort({$a <=> $b} keys(%{$bdata}))) {
+ my $taken = $bdata->{$branch};
+
+ $br_found++;
+ $br_hit++ if ($taken ne "-" && $taken > 0);
+ $brdata = br_ivec_push($brdata, $block,
+ $branch, $taken);
+ }
+ }
+ $brcount->{$line} = $brdata;
+ }
+
+ return ($brcount, $br_found, $br_hit);
+}
+
+
+# combine_brcount(brcount1, brcount2, type)
+#
+# If add is BR_ADD, add branch coverage data and return list (brcount_added,
+# br_found, br_hit). If add is BR_SUB, subtract the taken values of brcount2
+# from brcount1 and return (brcount_sub, br_found, br_hit).
+#
+
+sub combine_brcount($$$)
+{
+ my ($brcount1, $brcount2, $type) = @_;
+ my $line;
+ my $block;
+ my $branch;
+ my $taken;
+ my $db;
+ my $br_found = 0;
+ my $br_hit = 0;
+ my $result;
+
+ # Convert branches from first count to database
+ $db = brcount_to_db($brcount1);
+ # Combine values from database and second count
+ foreach $line (keys(%{$brcount2})) {
+ my $brdata = $brcount2->{$line};
+ my $num = br_ivec_len($brdata);
+ my $i;
+
+ for ($i = 0; $i < $num; $i++) {
+ ($block, $branch, $taken) = br_ivec_get($brdata, $i);
+ my $new_taken = $db->{$line}->{$block}->{$branch};
+
+ if ($type == $BR_ADD) {
+ $new_taken = br_taken_add($new_taken, $taken);
+ } elsif ($type == $BR_SUB) {
+ $new_taken = br_taken_sub($new_taken, $taken);
+ }
+ $db->{$line}->{$block}->{$branch} = $new_taken
+ if (defined($new_taken));
+ }
+ }
+ # Convert database back to brcount format
+ ($result, $br_found, $br_hit) = db_to_brcount($db);
+
+ return ($result, $br_found, $br_hit);
+}
+
+
+#
+# add_testbrdata(testbrdata1, testbrdata2)
+#
+# Add branch coverage data for several tests. Return reference to
+# added_testbrdata.
+#
+
+sub add_testbrdata($$)
+{
+ my ($testbrdata1, $testbrdata2) = @_;
+ my %result;
+ my $testname;
+
+ foreach $testname (keys(%{$testbrdata1})) {
+ if (defined($testbrdata2->{$testname})) {
+ my $brcount;
+
+ # Branch coverage data for this testname exists
+ # in both data sets: add
+ ($brcount) = combine_brcount(
+ $testbrdata1->{$testname},
+ $testbrdata2->{$testname}, $BR_ADD);
+ $result{$testname} = $brcount;
+ next;
+ }
+ # Branch coverage data for this testname is unique to
+ # data set 1: copy
+ $result{$testname} = $testbrdata1->{$testname};
+ }
+
+ # Add count data for testnames unique to data set 2
+ foreach $testname (keys(%{$testbrdata2})) {
+ if (!defined($result{$testname})) {
+ $result{$testname} = $testbrdata2->{$testname};
+ }
+ }
+ return \%result;
+}
+
+
#
# combine_info_entries(entry_ref1, entry_ref2, filename)
#
@@ -1440,6 +2269,8 @@ sub combine_info_entries($$$)
my $checkdata1;
my $testfncdata1;
my $sumfnccount1;
+ my $testbrdata1;
+ my $sumbrcount1;
my $entry2 = $_[1]; # Reference to hash containing second entry
my $testdata2;
@@ -1448,6 +2279,8 @@ sub combine_info_entries($$$)
my $checkdata2;
my $testfncdata2;
my $sumfnccount2;
+ my $testbrdata2;
+ my $sumbrcount2;
my %result; # Hash containing combined entry
my %result_testdata;
@@ -1455,19 +2288,23 @@ sub combine_info_entries($$$)
my $result_funcdata;
my $result_testfncdata;
my $result_sumfnccount;
+ my $result_testbrdata;
+ my $result_sumbrcount;
my $lines_found;
my $lines_hit;
my $f_found;
my $f_hit;
+ my $br_found;
+ my $br_hit;
my $testname;
my $filename = $_[2];
# Retrieve data
($testdata1, $sumcount1, $funcdata1, $checkdata1, $testfncdata1,
- $sumfnccount1) = get_info_entry($entry1);
+ $sumfnccount1, $testbrdata1, $sumbrcount1) = get_info_entry($entry1);
($testdata2, $sumcount2, $funcdata2, $checkdata2, $testfncdata2,
- $sumfnccount2) = get_info_entry($entry2);
+ $sumfnccount2, $testbrdata2, $sumbrcount2) = get_info_entry($entry2);
# Merge checksums
$checkdata1 = merge_checksums($checkdata1, $checkdata2, $filename);
@@ -1479,7 +2316,12 @@ sub combine_info_entries($$$)
$result_testfncdata = add_testfncdata($testfncdata1, $testfncdata2);
($result_sumfnccount, $f_found, $f_hit) =
add_fnccount($sumfnccount1, $sumfnccount2);
-
+
+ # Combine branch coverage data
+ $result_testbrdata = add_testbrdata($testbrdata1, $testbrdata2);
+ ($result_sumbrcount, $br_found, $br_hit) =
+ combine_brcount($sumbrcount1, $sumbrcount2, $BR_ADD);
+
# Combine testdata
foreach $testname (keys(%{$testdata1}))
{
@@ -1522,8 +2364,9 @@ sub combine_info_entries($$$)
# Store result
set_info_entry(\%result, \%result_testdata, $result_sumcount,
$result_funcdata, $checkdata1, $result_testfncdata,
- $result_sumfnccount, $lines_found, $lines_hit,
- $f_found, $f_hit);
+ $result_sumfnccount, $result_testbrdata,
+ $result_sumbrcount, $lines_found, $lines_hit,
+ $f_found, $f_hit, $br_found, $br_hit);
return(\%result);
}
@@ -1573,6 +2416,7 @@ sub add_traces()
my $total_trace;
my $current_trace;
my $tracefile;
+ my @result;
local *INFO_HANDLE;
info("Combining tracefiles.\n");
@@ -1597,13 +2441,15 @@ sub add_traces()
info("Writing data to $output_filename\n");
open(INFO_HANDLE, ">$output_filename")
or die("ERROR: cannot write to $output_filename!\n");
- write_info_file(*INFO_HANDLE, $total_trace);
+ @result = write_info_file(*INFO_HANDLE, $total_trace);
close(*INFO_HANDLE);
}
else
{
- write_info_file(*STDOUT, $total_trace);
+ @result = write_info_file(*STDOUT, $total_trace);
}
+
+ return @result;
}
@@ -1623,25 +2469,48 @@ sub write_info_file(*$)
my $checkdata;
my $testfncdata;
my $sumfnccount;
+ my $testbrdata;
+ my $sumbrcount;
my $testname;
my $line;
my $func;
my $testcount;
my $testfnccount;
+ my $testbrcount;
my $found;
my $hit;
my $f_found;
my $f_hit;
-
- foreach $source_file (keys(%data))
+ my $br_found;
+ my $br_hit;
+ my $ln_total_found = 0;
+ my $ln_total_hit = 0;
+ my $fn_total_found = 0;
+ my $fn_total_hit = 0;
+ my $br_total_found = 0;
+ my $br_total_hit = 0;
+
+ foreach $source_file (sort(keys(%data)))
{
$entry = $data{$source_file};
($testdata, $sumcount, $funcdata, $checkdata, $testfncdata,
- $sumfnccount) = get_info_entry($entry);
- foreach $testname (keys(%{$testdata}))
+ $sumfnccount, $testbrdata, $sumbrcount, $found, $hit,
+ $f_found, $f_hit, $br_found, $br_hit) =
+ get_info_entry($entry);
+
+ # Add to totals
+ $ln_total_found += $found;
+ $ln_total_hit += $hit;
+ $fn_total_found += $f_found;
+ $fn_total_hit += $f_hit;
+ $br_total_found += $br_found;
+ $br_total_hit += $br_hit;
+
+ foreach $testname (sort(keys(%{$testdata})))
{
$testcount = $testdata->{$testname};
$testfnccount = $testfncdata->{$testname};
+ $testbrcount = $testbrdata->{$testname};
$found = 0;
$hit = 0;
@@ -1666,6 +2535,31 @@ sub write_info_file(*$)
print(INFO_HANDLE "FNF:$f_found\n");
print(INFO_HANDLE "FNH:$f_hit\n");
+ # Write branch related data
+ $br_found = 0;
+ $br_hit = 0;
+ foreach $line (sort({$a <=> $b}
+ keys(%{$testbrcount}))) {
+ my $brdata = $testbrcount->{$line};
+ my $num = br_ivec_len($brdata);
+ my $i;
+
+ for ($i = 0; $i < $num; $i++) {
+ my ($block, $branch, $taken) =
+ br_ivec_get($brdata, $i);
+
+ print(INFO_HANDLE "BRDA:$line,$block,".
+ "$branch,$taken\n");
+ $br_found++;
+ $br_hit++ if ($taken ne '-' &&
+ $taken > 0);
+ }
+ }
+ if ($br_found > 0) {
+ print(INFO_HANDLE "BRF:$br_found\n");
+ print(INFO_HANDLE "BRH:$br_hit\n");
+ }
+
# Write line related data
foreach $line (sort({$a <=> $b} keys(%{$testcount})))
{
@@ -1686,6 +2580,9 @@ sub write_info_file(*$)
print(INFO_HANDLE "end_of_record\n");
}
}
+
+ return ($ln_total_found, $ln_total_hit, $fn_total_found, $fn_total_hit,
+ $br_total_found, $br_total_hit);
}
@@ -1739,6 +2636,7 @@ sub extract()
my $pattern;
my @pattern_list;
my $extracted = 0;
+ my @result;
local *INFO_HANDLE;
# Need perlreg expressions instead of shell pattern
@@ -1773,13 +2671,15 @@ sub extract()
info("Writing data to $output_filename\n");
open(INFO_HANDLE, ">$output_filename")
or die("ERROR: cannot write to $output_filename!\n");
- write_info_file(*INFO_HANDLE, $data);
+ @result = write_info_file(*INFO_HANDLE, $data);
close(*INFO_HANDLE);
}
else
{
- write_info_file(*STDOUT, $data);
+ @result = write_info_file(*STDOUT, $data);
}
+
+ return @result;
}
@@ -1795,6 +2695,7 @@ sub remove()
my $pattern;
my @pattern_list;
my $removed = 0;
+ my @result;
local *INFO_HANDLE;
# Need perlreg expressions instead of shell pattern
@@ -1826,16 +2727,126 @@ sub remove()
info("Writing data to $output_filename\n");
open(INFO_HANDLE, ">$output_filename")
or die("ERROR: cannot write to $output_filename!\n");
- write_info_file(*INFO_HANDLE, $data);
+ @result = write_info_file(*INFO_HANDLE, $data);
close(*INFO_HANDLE);
}
else
{
- write_info_file(*STDOUT, $data);
+ @result = write_info_file(*STDOUT, $data);
}
+
+ return @result;
+}
+
+
+# get_prefix(max_width, max_percentage_too_long, path_list)
+#
+# Return a path prefix that satisfies the following requirements:
+# - is shared by more paths in path_list than any other prefix
+# - the percentage of paths which would exceed the given max_width length
+# after applying the prefix does not exceed max_percentage_too_long
+#
+# If multiple prefixes satisfy all requirements, the longest prefix is
+# returned. Return an empty string if no prefix could be found.
+
+sub get_prefix($$@)
+{
+ my ($max_width, $max_long, @path_list) = @_;
+ my $path;
+ my $ENTRY_NUM = 0;
+ my $ENTRY_LONG = 1;
+ my %prefix;
+
+ # Build prefix hash
+ foreach $path (@path_list) {
+ my ($v, $d, $f) = splitpath($path);
+ my @dirs = splitdir($d);
+ my $p_len = length($path);
+ my $i;
+
+ # Remove trailing '/'
+ pop(@dirs) if ($dirs[scalar(@dirs) - 1] eq '');
+ for ($i = 0; $i < scalar(@dirs); $i++) {
+ my $subpath = catpath($v, catdir(@dirs[0..$i]), '');
+ my $entry = $prefix{$subpath};
+
+ $entry = [ 0, 0 ] if (!defined($entry));
+ $entry->[$ENTRY_NUM]++;
+ if (($p_len - length($subpath) - 1) > $max_width) {
+ $entry->[$ENTRY_LONG]++;
+ }
+ $prefix{$subpath} = $entry;
+ }
+ }
+ # Find suitable prefix (sort descending by two keys: 1. number of
+ # entries covered by a prefix, 2. length of prefix)
+ foreach $path (sort {($prefix{$a}->[$ENTRY_NUM] ==
+ $prefix{$b}->[$ENTRY_NUM]) ?
+ length($b) <=> length($a) :
+ $prefix{$b}->[$ENTRY_NUM] <=>
+ $prefix{$a}->[$ENTRY_NUM]}
+ keys(%prefix)) {
+ my ($num, $long) = @{$prefix{$path}};
+
+ # Check for additional requirement: number of filenames
+ # that would be too long may not exceed a certain percentage
+ if ($long <= $num * $max_long / 100) {
+ return $path;
+ }
+ }
+
+ return "";
+}
+
+
+#
+# shorten_filename(filename, width)
+#
+# Truncate filename if it is longer than width characters.
+#
+
+sub shorten_filename($$)
+{
+ my ($filename, $width) = @_;
+ my $l = length($filename);
+ my $s;
+ my $e;
+
+ return $filename if ($l <= $width);
+ $e = int(($width - 3) / 2);
+ $s = $width - 3 - $e;
+
+ return substr($filename, 0, $s).'...'.substr($filename, $l - $e);
}
+sub shorten_number($$)
+{
+ my ($number, $width) = @_;
+ my $result = sprintf("%*d", $width, $number);
+
+ return $result if (length($result) <= $width);
+ $number = $number / 1000;
+ return $result if (length($result) <= $width);
+ $result = sprintf("%*dk", $width - 1, $number);
+ return $result if (length($result) <= $width);
+ $number = $number / 1000;
+ $result = sprintf("%*dM", $width - 1, $number);
+ return $result if (length($result) <= $width);
+ return '#';
+}
+
+sub shorten_rate($$)
+{
+ my ($rate, $width) = @_;
+ my $result = sprintf("%*.1f%%", $width - 3, $rate);
+
+ return $result if (length($result) <= $width);
+ $result = sprintf("%*d%%", $width - 1, $rate);
+ return $result if (length($result) <= $width);
+ return "#";
+}
+
#
# list()
#
@@ -1847,17 +2858,278 @@ sub list()
my $found;
my $hit;
my $entry;
-
- info("Listing contents of $list:\n");
-
- # List all files
+ my $fn_found;
+ my $fn_hit;
+ my $br_found;
+ my $br_hit;
+ my $total_found = 0;
+ my $total_hit = 0;
+ my $fn_total_found = 0;
+ my $fn_total_hit = 0;
+ my $br_total_found = 0;
+ my $br_total_hit = 0;
+ my $prefix;
+ my $strlen = length("Filename");
+ my $format;
+ my $heading1;
+ my $heading2;
+ my @footer;
+ my $barlen;
+ my $rate;
+ my $fnrate;
+ my $brrate;
+ my $lastpath;
+ my $F_LN_NUM = 0;
+ my $F_LN_RATE = 1;
+ my $F_FN_NUM = 2;
+ my $F_FN_RATE = 3;
+ my $F_BR_NUM = 4;
+ my $F_BR_RATE = 5;
+ my @fwidth_narrow = (5, 5, 3, 5, 4, 5);
+ my @fwidth_wide = (6, 5, 5, 5, 6, 5);
+ my @fwidth = @fwidth_wide;
+ my $w;
+ my $max_width = $opt_list_width;
+ my $max_long = $opt_list_truncate_max;
+ my $fwidth_narrow_length;
+ my $fwidth_wide_length;
+ my $got_prefix = 0;
+ my $root_prefix = 0;
+
+ # Calculate total width of narrow fields
+ $fwidth_narrow_length = 0;
+ foreach $w (@fwidth_narrow) {
+ $fwidth_narrow_length += $w + 1;
+ }
+ # Calculate total width of wide fields
+ $fwidth_wide_length = 0;
+ foreach $w (@fwidth_wide) {
+ $fwidth_wide_length += $w + 1;
+ }
+ # Get common file path prefix
+ $prefix = get_prefix($max_width - $fwidth_narrow_length, $max_long,
+ keys(%{$data}));
+ $root_prefix = 1 if ($prefix eq rootdir());
+ $got_prefix = 1 if (length($prefix) > 0);
+ $prefix =~ s/\/$//;
+ # Get longest filename length
+ foreach $filename (keys(%{$data})) {
+ if (!$opt_list_full_path) {
+ if (!$got_prefix || !$root_prefix &&
+ !($filename =~ s/^\Q$prefix\/\E//)) {
+ my ($v, $d, $f) = splitpath($filename);
+
+ $filename = $f;
+ }
+ }
+ # Determine maximum length of entries
+ if (length($filename) > $strlen) {
+ $strlen = length($filename)
+ }
+ }
+ if (!$opt_list_full_path) {
+ my $blanks;
+
+ $w = $fwidth_wide_length;
+ # Check if all columns fit into max_width characters
+ if ($strlen + $fwidth_wide_length > $max_width) {
+ # Use narrow fields
+ @fwidth = @fwidth_narrow;
+ $w = $fwidth_narrow_length;
+ if (($strlen + $fwidth_narrow_length) > $max_width) {
+ # Truncate filenames at max width
+ $strlen = $max_width - $fwidth_narrow_length;
+ }
+ }
+ # Add some blanks between filename and fields if possible
+ $blanks = int($strlen * 0.5);
+ $blanks = 4 if ($blanks < 4);
+ $blanks = 8 if ($blanks > 8);
+ if (($strlen + $w + $blanks) < $max_width) {
+ $strlen += $blanks;
+ } else {
+ $strlen = $max_width - $w;
+ }
+ }
+ # Filename
+ $w = $strlen;
+ $format = "%-${w}s|";
+ $heading1 = sprintf("%*s|", $w, "");
+ $heading2 = sprintf("%-*s|", $w, "Filename");
+ $barlen = $w + 1;
+ # Line coverage rate
+ $w = $fwidth[$F_LN_RATE];
+ $format .= "%${w}s ";
+ $heading1 .= sprintf("%-*s |", $w + $fwidth[$F_LN_NUM],
+ "Lines");
+ $heading2 .= sprintf("%-*s ", $w, "Rate");
+ $barlen += $w + 1;
+ # Number of lines
+ $w = $fwidth[$F_LN_NUM];
+ $format .= "%${w}s|";
+ $heading2 .= sprintf("%*s|", $w, "Num");
+ $barlen += $w + 1;
+ # Function coverage rate
+ $w = $fwidth[$F_FN_RATE];
+ $format .= "%${w}s ";
+ $heading1 .= sprintf("%-*s|", $w + $fwidth[$F_FN_NUM] + 1,
+ "Functions");
+ $heading2 .= sprintf("%-*s ", $w, "Rate");
+ $barlen += $w + 1;
+ # Number of functions
+ $w = $fwidth[$F_FN_NUM];
+ $format .= "%${w}s|";
+ $heading2 .= sprintf("%*s|", $w, "Num");
+ $barlen += $w + 1;
+ # Branch coverage rate
+ $w = $fwidth[$F_BR_RATE];
+ $format .= "%${w}s ";
+ $heading1 .= sprintf("%-*s", $w + $fwidth[$F_BR_NUM] + 1,
+ "Branches");
+ $heading2 .= sprintf("%-*s ", $w, "Rate");
+ $barlen += $w + 1;
+ # Number of branches
+ $w = $fwidth[$F_BR_NUM];
+ $format .= "%${w}s";
+ $heading2 .= sprintf("%*s", $w, "Num");
+ $barlen += $w;
+ # Line end
+ $format .= "\n";
+ $heading1 .= "\n";
+ $heading2 .= "\n";
+
+ # Print heading
+ print($heading1);
+ print($heading2);
+ print(("="x$barlen)."\n");
+
+ # Print per file information
foreach $filename (sort(keys(%{$data})))
{
+ my @file_data;
+ my $print_filename = $filename;
+
$entry = $data->{$filename};
- (undef, undef, undef, undef, undef, undef, $found, $hit) =
+ if (!$opt_list_full_path) {
+ my $p;
+
+ $print_filename = $filename;
+ if (!$got_prefix || !$root_prefix &&
+ !($print_filename =~ s/^\Q$prefix\/\E//)) {
+ my ($v, $d, $f) = splitpath($filename);
+
+ $p = catpath($v, $d, "");
+ $p =~ s/\/$//;
+ $print_filename = $f;
+ } else {
+ $p = $prefix;
+ }
+
+ if (!defined($lastpath) || $lastpath ne $p) {
+ print("\n") if (defined($lastpath));
+ $lastpath = $p;
+ print("[$lastpath/]\n") if (!$root_prefix);
+ }
+ $print_filename = shorten_filename($print_filename,
+ $strlen);
+ }
+
+ (undef, undef, undef, undef, undef, undef, undef, undef,
+ $found, $hit, $fn_found, $fn_hit, $br_found, $br_hit) =
get_info_entry($entry);
- printf("$filename: $hit of $found lines hit\n");
+
+ # Assume zero count if there is no function data for this file
+ if (!defined($fn_found) || !defined($fn_hit)) {
+ $fn_found = 0;
+ $fn_hit = 0;
+ }
+ # Assume zero count if there is no branch data for this file
+ if (!defined($br_found) || !defined($br_hit)) {
+ $br_found = 0;
+ $br_hit = 0;
+ }
+
+ # Add line coverage totals
+ $total_found += $found;
+ $total_hit += $hit;
+ # Add function coverage totals
+ $fn_total_found += $fn_found;
+ $fn_total_hit += $fn_hit;
+ # Add branch coverage totals
+ $br_total_found += $br_found;
+ $br_total_hit += $br_hit;
+
+ # Determine line coverage rate for this file
+ if ($found == 0) {
+ $rate = "-";
+ } else {
+ $rate = shorten_rate(100 * $hit / $found,
+ $fwidth[$F_LN_RATE]);
+ }
+ # Determine function coverage rate for this file
+ if (!defined($fn_found) || $fn_found == 0) {
+ $fnrate = "-";
+ } else {
+ $fnrate = shorten_rate(100 * $fn_hit / $fn_found,
+ $fwidth[$F_FN_RATE]);
+ }
+ # Determine branch coverage rate for this file
+ if (!defined($br_found) || $br_found == 0) {
+ $brrate = "-";
+ } else {
+ $brrate = shorten_rate(100 * $br_hit / $br_found,
+ $fwidth[$F_BR_RATE]);
+ }
+
+ # Assemble line parameters
+ push(@file_data, $print_filename);
+ push(@file_data, $rate);
+ push(@file_data, shorten_number($found, $fwidth[$F_LN_NUM]));
+ push(@file_data, $fnrate);
+ push(@file_data, shorten_number($fn_found, $fwidth[$F_FN_NUM]));
+ push(@file_data, $brrate);
+ push(@file_data, shorten_number($br_found, $fwidth[$F_BR_NUM]));
+
+ # Print assembled line
+ printf($format, @file_data);
}
+
+ # Determine total line coverage rate
+ if ($total_found == 0) {
+ $rate = "-";
+ } else {
+ $rate = shorten_rate(100 * $total_hit / $total_found,
+ $fwidth[$F_LN_RATE]);
+ }
+ # Determine total function coverage rate
+ if ($fn_total_found == 0) {
+ $fnrate = "-";
+ } else {
+ $fnrate = shorten_rate(100 * $fn_total_hit / $fn_total_found,
+ $fwidth[$F_FN_RATE]);
+ }
+ # Determine total branch coverage rate
+ if ($br_total_found == 0) {
+ $brrate = "-";
+ } else {
+ $brrate = shorten_rate(100 * $br_total_hit / $br_total_found,
+ $fwidth[$F_BR_RATE]);
+ }
+
+ # Print separator
+ print(("="x$barlen)."\n");
+
+ # Assemble line parameters
+ push(@footer, sprintf("%*s", $strlen, "Total:"));
+ push(@footer, $rate);
+ push(@footer, shorten_number($total_found, $fwidth[$F_LN_NUM]));
+ push(@footer, $fnrate);
+ push(@footer, shorten_number($fn_total_found, $fwidth[$F_FN_NUM]));
+ push(@footer, $brrate);
+ push(@footer, shorten_number($br_total_found, $fwidth[$F_BR_NUM]));
+
+ # Print assembled line
+ printf($format, @footer);
}
@@ -2155,6 +3427,28 @@ sub apply_diff($$)
#
+# apply_diff_to_brcount(brcount, linedata)
+#
+# Adjust line numbers of branch coverage data according to linedata.
+#
+
+sub apply_diff_to_brcount($$)
+{
+ my ($brcount, $linedata) = @_;
+ my $db;
+
+ # Convert brcount to db format
+ $db = brcount_to_db($brcount);
+ # Apply diff to db format
+ $db = apply_diff($db, $linedata);
+ # Convert db format back to brcount format
+ ($brcount) = db_to_brcount($db);
+
+ return $brcount;
+}
+
+
+#
# get_hash_max(hash_ref)
#
# Return the highest integer key from hash.
@@ -2235,10 +3529,16 @@ sub get_line_hash($$$)
my $old_depth;
my $new_depth;
+ # Remove trailing slash from diff path
+ $diff_path =~ s/\/$//;
foreach (keys(%{$diff_data}))
{
+ my $sep = "";
+
+ $sep = '/' if (!/^\//);
+
# Try to match diff filename with filename
- if ($filename =~ /^\Q$diff_path\E\/$_$/)
+ if ($filename =~ /^\Q$diff_path$sep$_\E$/)
{
if ($diff_name)
{
@@ -2432,12 +3732,17 @@ sub diff()
my $checkdata;
my $testfncdata;
my $sumfnccount;
+ my $testbrdata;
+ my $sumbrcount;
my $found;
my $hit;
my $f_found;
my $f_hit;
+ my $br_found;
+ my $br_hit;
my $converted = 0;
my $unchanged = 0;
+ my @result;
local *INFO_HANDLE;
($diff_data, $path_data) = read_diff($ARGV[0]);
@@ -2468,17 +3773,24 @@ sub diff()
info("Converting $filename\n");
$entry = $trace_data->{$filename};
($testdata, $sumcount, $funcdata, $checkdata, $testfncdata,
- $sumfnccount) = get_info_entry($entry);
+ $sumfnccount, $testbrdata, $sumbrcount) =
+ get_info_entry($entry);
# Convert test data
foreach $testname (keys(%{$testdata}))
{
+ # Adjust line numbers of line coverage data
$testdata->{$testname} =
apply_diff($testdata->{$testname}, $line_hash);
+ # Adjust line numbers of branch coverage data
+ $testbrdata->{$testname} =
+ apply_diff_to_brcount($testbrdata->{$testname},
+ $line_hash);
# Remove empty sets of test data
if (scalar(keys(%{$testdata->{$testname}})) == 0)
{
delete($testdata->{$testname});
delete($testfncdata->{$testname});
+ delete($testbrdata->{$testname});
}
}
# Rename test data to indicate conversion
@@ -2502,6 +3814,12 @@ sub diff()
$testfncdata->{$testname},
$testfncdata->{$testname.",diff"});
delete($testfncdata->{$testname.",diff"});
+ # Add branch counts
+ ($testbrdata->{$testname}) = combine_brcount(
+ $testbrdata->{$testname},
+ $testbrdata->{$testname.",diff"},
+ $BR_ADD);
+ delete($testbrdata->{$testname.",diff"});
}
# Move test data to new testname
$testdata->{$testname.",diff"} = $testdata->{$testname};
@@ -2510,16 +3828,24 @@ sub diff()
$testfncdata->{$testname.",diff"} =
$testfncdata->{$testname};
delete($testfncdata->{$testname});
+ # Move branch count data to new testname
+ $testbrdata->{$testname.",diff"} =
+ $testbrdata->{$testname};
+ delete($testbrdata->{$testname});
}
# Convert summary of test data
$sumcount = apply_diff($sumcount, $line_hash);
# Convert function data
$funcdata = apply_diff_to_funcdata($funcdata, $line_hash);
+ # Convert branch coverage data
+ $sumbrcount = apply_diff_to_brcount($sumbrcount, $line_hash);
+ # Update found/hit numbers
# Convert checksum data
$checkdata = apply_diff($checkdata, $line_hash);
# Convert function call count data
adjust_fncdata($funcdata, $testfncdata, $sumfnccount);
($f_found, $f_hit) = get_func_found_and_hit($sumfnccount);
+ ($br_found, $br_hit) = get_br_found_and_hit($sumbrcount);
# Update found/hit numbers
$found = 0;
$hit = 0;
@@ -2536,7 +3862,8 @@ sub diff()
# Store converted entry
set_info_entry($entry, $testdata, $sumcount, $funcdata,
$checkdata, $testfncdata, $sumfnccount,
- $found, $hit, $f_found, $f_hit);
+ $testbrdata, $sumbrcount, $found, $hit,
+ $f_found, $f_hit, $br_found, $br_hit);
}
else
{
@@ -2561,13 +3888,15 @@ sub diff()
info("Writing data to $output_filename\n");
open(INFO_HANDLE, ">$output_filename")
or die("ERROR: cannot write to $output_filename!\n");
- write_info_file(*INFO_HANDLE, $trace_data);
+ @result = write_info_file(*INFO_HANDLE, $trace_data);
close(*INFO_HANDLE);
}
else
{
- write_info_file(*STDOUT, $trace_data);
+ @result = write_info_file(*STDOUT, $trace_data);
}
+
+ return @result;
}
@@ -2688,6 +4017,7 @@ sub warn_handler($)
{
my ($msg) = @_;
+ temp_cleanup();
warn("$tool_name: $msg");
}
@@ -2695,5 +4025,151 @@ sub die_handler($)
{
my ($msg) = @_;
+ temp_cleanup();
die("$tool_name: $msg");
}
+
+sub abort_handler($)
+{
+ temp_cleanup();
+ exit(1);
+}
+
+sub temp_cleanup()
+{
+ if (@temp_dirs) {
+ info("Removing temporary directories.\n");
+ foreach (@temp_dirs) {
+ rmtree($_);
+ }
+ @temp_dirs = ();
+ }
+}
+
+sub setup_gkv_sys()
+{
+ system_no_output(3, "mount", "-t", "debugfs", "nodev",
+ "/sys/kernel/debug");
+}
+
+sub setup_gkv_proc()
+{
+ if (system_no_output(3, "modprobe", "gcov_proc")) {
+ system_no_output(3, "modprobe", "gcov_prof");
+ }
+}
+
+sub check_gkv_sys($)
+{
+ my ($dir) = @_;
+
+ if (-e "$dir/reset") {
+ return 1;
+ }
+ return 0;
+}
+
+sub check_gkv_proc($)
+{
+ my ($dir) = @_;
+
+ if (-e "$dir/vmlinux") {
+ return 1;
+ }
+ return 0;
+}
+
+sub setup_gkv()
+{
+ my $dir;
+ my $sys_dir = "/sys/kernel/debug/gcov";
+ my $proc_dir = "/proc/gcov";
+ my @todo;
+
+ if (!defined($gcov_dir)) {
+ info("Auto-detecting gcov kernel support.\n");
+ @todo = ( "cs", "cp", "ss", "cs", "sp", "cp" );
+ } elsif ($gcov_dir =~ /proc/) {
+ info("Checking gcov kernel support at $gcov_dir ".
+ "(user-specified).\n");
+ @todo = ( "cp", "sp", "cp", "cs", "ss", "cs");
+ } else {
+ info("Checking gcov kernel support at $gcov_dir ".
+ "(user-specified).\n");
+ @todo = ( "cs", "ss", "cs", "cp", "sp", "cp", );
+ }
+ foreach (@todo) {
+ if ($_ eq "cs") {
+ # Check /sys
+ $dir = defined($gcov_dir) ? $gcov_dir : $sys_dir;
+ if (check_gkv_sys($dir)) {
+ info("Found ".$GKV_NAME[$GKV_SYS]." gcov ".
+ "kernel support at $dir\n");
+ return ($GKV_SYS, $dir);
+ }
+ } elsif ($_ eq "cp") {
+ # Check /proc
+ $dir = defined($gcov_dir) ? $gcov_dir : $proc_dir;
+ if (check_gkv_proc($dir)) {
+ info("Found ".$GKV_NAME[$GKV_PROC]." gcov ".
+ "kernel support at $dir\n");
+ return ($GKV_PROC, $dir);
+ }
+ } elsif ($_ eq "ss") {
+ # Setup /sys
+ setup_gkv_sys();
+ } elsif ($_ eq "sp") {
+ # Setup /proc
+ setup_gkv_proc();
+ }
+ }
+ if (defined($gcov_dir)) {
+ die("ERROR: could not find gcov kernel data at $gcov_dir\n");
+ } else {
+ die("ERROR: no gcov kernel data found\n");
+ }
+}
+
+
+#
+# get_overall_line(found, hit, name_singular, name_plural)
+#
+# Return a string containing overall information for the specified
+# found/hit data.
+#
+
+sub get_overall_line($$$$)
+{
+ my ($found, $hit, $name_sn, $name_pl) = @_;
+ my $name;
+
+ return "no data found" if (!defined($found) || $found == 0);
+ $name = ($found == 1) ? $name_sn : $name_pl;
+ return sprintf("%.1f%% (%d of %d %s)", $hit * 100 / $found, $hit,
+ $found, $name);
+}
+
+
+#
+# print_overall_rate(ln_do, ln_found, ln_hit, fn_do, fn_found, fn_hit, br_do
+# br_found, br_hit)
+#
+# Print overall coverage rates for the specified coverage types.
+#
+
+sub print_overall_rate($$$$$$$$$)
+{
+ my ($ln_do, $ln_found, $ln_hit, $fn_do, $fn_found, $fn_hit,
+ $br_do, $br_found, $br_hit) = @_;
+
+ info("Overall coverage rate:\n");
+ info(" lines......: %s\n",
+ get_overall_line($ln_found, $ln_hit, "line", "lines"))
+ if ($ln_do);
+ info(" functions..: %s\n",
+ get_overall_line($fn_found, $fn_hit, "function", "functions"))
+ if ($fn_do);
+ info(" branches...: %s\n",
+ get_overall_line($br_found, $br_hit, "branch", "branches"))
+ if ($br_do);
+}