19990502 sourceware importbinu_ss_19990502

1 files changed, 36 insertions, 0 deletions

diff --git a/gprof/bbconv.pl b/gprof/bbconv.pl
new file mode 100755
index 00000000000..7312f5162fe
--- /dev/null
+++ b/gprof/bbconv.pl
@@ -0,0 +1,36 @@
+#! /usr/bin/perl
+
+# This script converts a "bb.out" file into a format
+# suitable for processing by gprof
+
+# Write a new-style gmon header
+
+print pack("A4Ix12", "gmon", 1);
+
+
+# The input file format contains header lines and data lines.
+# Header lines contain a count of how many data lines follow before
+# the next header line.  $blockcount is set to the count that
+# appears in each header line, then decremented at each data line.
+# $blockcount should always be zero at the start of a header line,
+# and should never be zero at the start of a data line.
+
+$blockcount=0;
+
+while (<>) {
+    if (/^File .*, ([0-9]+) basic blocks/) {
+	print STDERR "Miscount: line $.\n" if ($blockcount != 0);
+	$blockcount = $1;
+
+	print pack("cI", 2, $blockcount);
+    }
+    if (/Block.*executed([ 0-9]+) time.* address= 0x([0-9a-fA-F]*)/) {
+	print STDERR "Miscount: line $.\n" if ($blockcount == 0);
+	$blockcount-- if ($blockcount > 0);
+
+	$count = $1;
+	$addr = hex $2;
+
+	print pack("II",$addr,$count);
+    }
+}