Merge branch 'linus' into tracing/ftrace

3 files changed, 44 insertions, 13 deletions

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 5ed4cbf1e0e1..468fbc9016c7 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 5e7316e5aa39..d2c61efc216f 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 f56d760bd589..6b9fe3eb8360 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);