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authorIngo Molnar <mingo@elte.hu>2008-10-31 00:38:21 +0100
committerIngo Molnar <mingo@elte.hu>2008-10-31 00:38:21 +0100
commite1e302d8a9ab06ba8d7d5ec503d8996e6cf0eca4 (patch)
tree6a6c805fdfd6a2f6433956cbee348b2c3a277784 /scripts
parent944ac4259e39801c843a915c3da8194ac9af0440 (diff)
parent7f82f000ed030d1108b4de47d9e2d556092980c6 (diff)
downloadop-kernel-dev-e1e302d8a9ab06ba8d7d5ec503d8996e6cf0eca4.zip
op-kernel-dev-e1e302d8a9ab06ba8d7d5ec503d8996e6cf0eca4.tar.gz
Merge branch 'linus' into tracing/ftrace
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Makefile.build10
-rw-r--r--scripts/bootgraph.pl19
-rwxr-xr-xscripts/recordmcount.pl28
3 files changed, 44 insertions, 13 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5ed4cbf..468fbc9 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -198,10 +198,16 @@ cmd_modversions = \
fi;
endif
+ifdef CONFIG_64BIT
+arch_bits = 64
+else
+arch_bits = 32
+endif
+
ifdef CONFIG_FTRACE_MCOUNT_RECORD
cmd_record_mcount = perl $(srctree)/scripts/recordmcount.pl \
- "$(ARCH)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" "$(NM)" "$(RM)" \
- "$(MV)" "$(@)";
+ "$(ARCH)" "$(arch_bits)" "$(OBJDUMP)" "$(OBJCOPY)" "$(CC)" "$(LD)" \
+ "$(NM)" "$(RM)" "$(MV)" "$(@)";
endif
define rule_cc_o_c
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index 5e7316e..d2c61ef 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -37,7 +37,10 @@
# dmesg | perl scripts/bootgraph.pl > output.svg
#
-my %start, %end;
+use strict;
+
+my %start;
+my %end;
my $done = 0;
my $maxtime = 0;
my $firsttime = 100;
@@ -105,18 +108,20 @@ my $threshold = ($maxtime - $firsttime) / 60.0;
my $stylecounter = 0;
my %rows;
my $rowscount = 1;
-while (($key,$value) = each %start) {
+my @initcalls = sort { $start{$a} <=> $start{$b} } keys(%start);
+my $key;
+foreach $key (@initcalls) {
my $duration = $end{$key} - $start{$key};
if ($duration >= $threshold) {
- my $s, $s2, $e, $y;
- $pid = $pids{$key};
+ my ($s, $s2, $e, $w, $y, $y2, $style);
+ my $pid = $pids{$key};
if (!defined($rows{$pid})) {
$rows{$pid} = $rowscount;
$rowscount = $rowscount + 1;
}
- $s = ($value - $firsttime) * $mult;
+ $s = ($start{$key} - $firsttime) * $mult;
$s2 = $s + 6;
$e = ($end{$key} - $firsttime) * $mult;
$w = $e - $s;
@@ -140,9 +145,9 @@ while (($key,$value) = each %start) {
my $time = $firsttime;
my $step = ($maxtime - $firsttime) / 15;
while ($time < $maxtime) {
- my $s2 = ($time - $firsttime) * $mult;
+ my $s3 = ($time - $firsttime) * $mult;
my $tm = int($time * 100) / 100.0;
- print "<text transform=\"translate($s2,89) rotate(90)\">$tm</text>\n";
+ print "<text transform=\"translate($s3,89) rotate(90)\">$tm</text>\n";
$time = $time + $step;
}
diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index f56d760..6b9fe3e 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -106,7 +106,13 @@ if ($#ARGV < 6) {
exit(1);
}
-my ($arch, $objdump, $objcopy, $cc, $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+my ($arch, $bits, $objdump, $objcopy, $cc,
+ $ld, $nm, $rm, $mv, $inputfile) = @ARGV;
+
+# Acceptable sections to record.
+my %text_sections = (
+ ".text" => 1,
+);
$objdump = "objdump" if ((length $objdump) == 0);
$objcopy = "objcopy" if ((length $objcopy) == 0);
@@ -129,8 +135,16 @@ my $function_regex; # Find the name of a function
# (return offset and func name)
my $mcount_regex; # Find the call site to mcount (return offset)
+if ($arch eq "x86") {
+ if ($bits == 64) {
+ $arch = "x86_64";
+ } else {
+ $arch = "i386";
+ }
+}
+
if ($arch eq "x86_64") {
- $section_regex = "Disassembly of section";
+ $section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$";
$type = ".quad";
@@ -142,7 +156,7 @@ if ($arch eq "x86_64") {
$cc .= " -m64";
} elsif ($arch eq "i386") {
- $section_regex = "Disassembly of section";
+ $section_regex = "Disassembly of section\\s+(\\S+):";
$function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
$type = ".long";
@@ -289,7 +303,13 @@ my $text;
while (<IN>) {
# is it a section?
if (/$section_regex/) {
- $read_function = 1;
+
+ # Only record text sections that we know are safe
+ if (defined($text_sections{$1})) {
+ $read_function = 1;
+ } else {
+ $read_function = 0;
+ }
# print out any recorded offsets
update_funcs() if ($text_found);
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