1 files changed, 82 insertions, 0 deletions
diff --git a/cddl/contrib/dtracetoolkit/dist/Php/php_malloc.d b/cddl/contrib/dtracetoolkit/dist/Php/php_malloc.d
new file mode 100755
index 0000000..1ebab26
--- /dev/null
+++ b/cddl/contrib/dtracetoolkit/dist/Php/php_malloc.d
@@ -0,0 +1,82 @@
+#!/usr/sbin/dtrace -Zs
+/*
+ * php_malloc.d - PHP libc malloc analysis.
+ *                Written for the PHP DTrace provider.
+ *
+ * $Id: php_malloc.d 53 2007-09-24 04:58:38Z brendan $
+ *
+ * This is an expiremental script to identify who is calling malloc() for
+ * memory allocation, and to print distribution plots of the requested bytes.
+ * If a malloc() occured while in a PHP function, then that function is
+ * identified as responsible; else the caller of malloc() is identified as
+ * responsible - which will be a function from the PHP engine.
+ *
+ * USAGE: php_malloc.d { -p PID | -c cmd }	# hit Ctrl-C to end
+ *
+ * Filename and function names are printed if available.
+ *
+ * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
+ *
+ * CDDL HEADER START
+ *
+ *  The contents of this file are subject to the terms of the
+ *  Common Development and Distribution License, Version 1.0 only
+ *  (the "License").  You may not use this file except in compliance
+ *  with the License.
+ *
+ *  You can obtain a copy of the license at Docs/cddl1.txt
+ *  or http://www.opensolaris.org/os/licensing.
+ *  See the License for the specific language governing permissions
+ *  and limitations under the License.
+ *
+ * CDDL HEADER END
+ *
+ * 09-Sep-2007	Brendan Gregg	Created this.
+ */
+
+#pragma D option quiet
+
+dtrace:::BEGIN
+{
+	printf("Tracing... Hit Ctrl-C to end.\n");
+}
+
+php$target:::function-entry
+/arg0/
+{
+	self->file = basename(copyinstr(arg1));
+	self->name = copyinstr(arg0);
+}
+
+php$target:::function-return
+{
+	self->file = 0;
+	self->name = 0;
+}
+
+pid$target:libc:malloc:entry
+/self->file != NULL/
+{
+	@malloc_func_size[self->file, self->name] = sum(arg1);
+	@malloc_func_dist[self->file, self->name] = quantize(arg1);
+}
+
+pid$target:libc:malloc:entry
+/self->name == NULL/
+{
+	@malloc_lib_size[usym(ucaller)] = sum(arg1);
+	@malloc_lib_dist[usym(ucaller)] = quantize(arg1);
+}
+
+
+dtrace:::END
+{
+	printf("\nPHP malloc byte distributions by engine caller,\n\n");
+	printa("   %A, total bytes = %@d %@d\n", @malloc_lib_size,
+	    @malloc_lib_dist);
+
+	printf("\nPHP malloc byte distributions by PHP file and ");
+	printf("function,\n\n");
+	printa("   %s, %s, bytes total = %@d %@d\n", @malloc_func_size,
+	    @malloc_func_dist);
+}