A helper to trace executed source lines

Author: dstogov

Zend/zend_execute.c

@@ -4311,6 +4311,8 @@ static zend_always_inline zend_execute_data *_zend_vm_stack_push_call_frame(uint
 
 #ifdef ZEND_VM_TRACE_HANDLERS
 # include "zend_vm_trace_handlers.h"
+#elif defined(ZEND_VM_TRACE_LINES)
+# include "zend_vm_trace_lines.h"
 #elif defined(ZEND_VM_TRACE_MAP)
 # include "zend_vm_trace_map.h"
 #endif

Zend/zend_vm_trace_lines.h

@@ -0,0 +1,42 @@
+/*
+   +----------------------------------------------------------------------+
+   | Zend Engine                                                          |
+   +----------------------------------------------------------------------+
+   | Copyright (c) Zend Technologies Ltd. (http://www.zend.com)           |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.00 of the Zend license,     |
+   | that is bundled with this package in the file LICENSE, and is        |
+   | available through the world-wide-web at the following url:           |
+   | http://www.zend.com/license/2_00.txt.                                |
+   | If you did not receive a copy of the Zend license and are unable to  |
+   | obtain it through the world-wide-web, please send a note to          |
+   | [email protected] so we can mail you a copy immediately.              |
+   +----------------------------------------------------------------------+
+   | Authors: Dmitry Stogov <[email protected]>                              |
+   +----------------------------------------------------------------------+
+*/
+
+#include "zend_sort.h"
+
+#define VM_TRACE(op)     zend_vm_trace(execute_data, opline);
+#define VM_TRACE_START() zend_vm_trace_init();
+#define VM_TRACE_END()   zend_vm_trace_finish();
+
+static FILE *vm_trace_file;
+
+static void zend_vm_trace(const zend_execute_data *execute_data, const zend_op *opline)
+{
+	if (EX(func) && EX(func)->op_array.filename) {
+		fprintf(vm_trace_file, "%s:%d\n", ZSTR_VAL(EX(func)->op_array.filename), opline->lineno);
+	}
+}
+
+static void zend_vm_trace_finish(void)
+{
+	fclose(vm_trace_file);
+}
+
+static void zend_vm_trace_init(void)
+{
+	vm_trace_file = fopen("zend_vm_trace.log", "w+");
+}