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Commit FS#9170 by Dave Hooper. Adds support for profiling on ARM, and fixes various issues with compiling profile builds. Also, note that profile_reader.pl syntax has changed.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@18142 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Giacomelli 2008-07-28 22:43:41 +00:00
parent c323d533c2
commit 52bdcbae85
7 changed files with 52 additions and 28 deletions
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39
tools/profile_reader/profile_reader.pl
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@ -36,11 +36,11 @@ sub read_map {
return %retval;
}
# string (filename.[ao]), hash(string:number)
# string (filename.(a|o|elf)), hash(number:string), string(objdump_tool)
# return hash(number:string)
sub read_library {
open(OBJECT_FILE,"objdump -t $_[0] |") ||
error("Couldn't pipe objdump for $_[0]");
open(OBJECT_FILE,"$_[2] -t $_[0] |") ||
error("Couldn't pipe objdump for $_[0]\nCommand was: $_[2] -t $_[0]");
my $library = $_[1];
my %library = %$library;
my %retval;
@ -62,7 +62,7 @@ sub read_library {
if ($parts[3] eq $parts[5]) {
next;
}
if ($parts[3] =~ m/\.(text|data|rodata|bss|icode|idata|irodata|ibss)/) {
if ($parts[3] =~ m/\.(text|data|rodata|bss|icode|idata|irodata|ibss|iram)/) {
my $region = $parts[3];
my $symbolOffset = hex("0x" . $parts[0]);
my $sectionOffset = hex($library{$object . $region});
@ -139,8 +139,16 @@ sub print_sorted {
my $totalCalls = 0;
my $totalTicks = 0;
$pfds = 0;
# we use a key sort, which means numerical fields need to be
# numerically sortable by an alphanumeric sort - we can simply
# do this by giving the numeric keys trailing zeros. Note that
# simple string concatenation (what this used to do) would not do this
foreach $element(@pfds) {
$elements{@$element[$sort_index] . @$element[2]} = $element;
$ne = $element;
@$ne[0] = sprintf( "%08d", @$element[0]);
@$ne[1] = sprintf( "%08d", @$element[1]);
$elements{@$ne[$sort_index] . @$element[2]} = $element;
$pfds++;
$totalCalls += @$element[0];
$totalTicks += @$element[1];
@ -174,13 +182,17 @@ sub usage {
print STDERR ("Error: @_\n");
}
print STDERR ("USAGE:\n");
print STDERR ("$0 profile.out map obj[...] [map obj[...]...] sort[...]\n");
print STDERR ("$0 profile.out objdump_tool map obj[...] [map obj[...]...] sort[...]\n");
print STDERR
("\tprofile.out output from the profiler, extension is .out\n");
print STDERR
("\tobjdump_tool name of objdump executable for this platform\n");
print STDERR
("\t e.g. arm-elf-objdump\n");
print STDERR
("\tmap map file, extension is .map\n");
print STDERR
("\tobj library or object file, extension is .a or .o\n");
("\tobj library or object file, extension is .a or .o or .elf\n");
print STDERR
("\tformat 0-2[_p] 0: by calls, 1: by ticks, 2: by name\n");
print STDERR
@ -195,13 +207,13 @@ sub usage {
if ($ARGV[0] =~ m/-(h|help|-help)/) {
usage();
}
if (@ARGV < 2) {
usage("Requires at least 2 arguments");
if (@ARGV < 3) {
usage("Requires at least 3 arguments");
}
if ($ARGV[0] !~ m/\.out$/) {
usage("Profile file must end in .out");
}
my $i = 1;
my $i = 2;
my %symbols;
{
my %map;
@ -209,12 +221,12 @@ my %symbols;
my $file = $ARGV[$i];
if ($file =~ m/\.map$/) {
%map = read_map($file);
} elsif ($file =~ m/\.[ao]$/) {
} elsif ($file =~ m/\.(a|o|elf)$/) {
if (!%map) {
usage("No map file found before first object file");
}
my @parts = split(/\//,$file);
my %new_symbols = read_library($file,$map{$parts[$#parts]});
my %new_symbols = read_library($file,$map{$parts[$#parts]},$ARGV[1]);
%symbols = merge_hashes(\%symbols,\%new_symbols);
} else {
last;
@ -224,6 +236,9 @@ my %symbols;
if (!%symbols) {
warning("No symbols found");
}
if ($i >= @ARGV) {
error("You forgot to specify any sort ordering on output (e.g. 0, 1_p, 2)");
}
my @pfds = create_list($ARGV[0],\%symbols);
for (; $i < @ARGV; $i++) {
print_sorted(\@pfds,split("_",$ARGV[$i]));