merge.

checkpoint.
does not compile.

1 files changed, 25 insertions, 0 deletions

diff --git a/scripts/convert-debug-for-diff.sh b/scripts/convert-debug-for-diff.sh
new file mode 100755
index 00000000000..b6c837504cb
--- /dev/null
+++ b/scripts/convert-debug-for-diff.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/perl -i
+#
+# This script converts all numbers that look like addresses or memory sizes,
+# in a debug files generated by --debug (like mysqld --debug), to #.
+# The script also deletes all thread id's from the start of the line.
+
+# This allows you to easily compare the files (for example with diff)
+# to find out what changes between different executions.
+# This is extremely useful for comparing two mysqld versions to see
+# why things now work differently.
+
+# The script converts the files in place.
+#
+# Typical usage:
+#
+# convert-debug-for-diff /tmp/mysqld.trace /tmp/mysqld-old.trace
+# diff /tmp/mysqld.trace /tmp/mysqld-old.trace
+
+while (<>)
+{
+  s/^T@[0-9]+\s*://g;
+  s/0x[0-9a-f]+(\s|\n|\))/#$1/g;
+  s/size: [0-9]+/size: #/g;
+  print $_;
+}