1 files changed, 74 insertions, 0 deletions
diff --git a/contrib/wpa/src/utils/trace.h b/contrib/wpa/src/utils/trace.h
new file mode 100644
index 0000000..22d3de0
--- /dev/null
+++ b/contrib/wpa/src/utils/trace.h
@@ -0,0 +1,74 @@
+/*
+ * Backtrace debugging
+ * Copyright (c) 2009, Jouni Malinen <j@w1.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Alternatively, this software may be distributed under the terms of BSD
+ * license.
+ *
+ * See README and COPYING for more details.
+ */
+
+#ifndef TRACE_H
+#define TRACE_H
+
+#define WPA_TRACE_LEN 16
+
+#ifdef WPA_TRACE
+#include <execinfo.h>
+
+#include "list.h"
+
+#define WPA_TRACE_INFO void *btrace[WPA_TRACE_LEN]; int btrace_num;
+
+struct wpa_trace_ref {
+	struct dl_list list;
+	const void *addr;
+	WPA_TRACE_INFO
+};
+#define WPA_TRACE_REF(name) struct wpa_trace_ref wpa_trace_ref_##name
+
+#define wpa_trace_dump(title, ptr) \
+	wpa_trace_dump_func((title), (ptr)->btrace, (ptr)->btrace_num)
+void wpa_trace_dump_func(const char *title, void **btrace, int btrace_num);
+#define wpa_trace_record(ptr) \
+	(ptr)->btrace_num = backtrace((ptr)->btrace, WPA_TRACE_LEN)
+void wpa_trace_show(const char *title);
+#define wpa_trace_add_ref(ptr, name, addr) \
+	wpa_trace_add_ref_func(&(ptr)->wpa_trace_ref_##name, (addr))
+void wpa_trace_add_ref_func(struct wpa_trace_ref *ref, const void *addr);
+#define wpa_trace_remove_ref(ptr, name, addr)	\
+	do { \
+		if ((addr)) \
+			dl_list_del(&(ptr)->wpa_trace_ref_##name.list); \
+	} while (0)
+void wpa_trace_check_ref(const void *addr);
+
+#else /* WPA_TRACE */
+
+#define WPA_TRACE_INFO
+#define WPA_TRACE_REF(n)
+#define wpa_trace_dump(title, ptr) do { } while (0)
+#define wpa_trace_record(ptr) do { } while (0)
+#define wpa_trace_show(title) do { } while (0)
+#define wpa_trace_add_ref(ptr, name, addr) do { } while (0)
+#define wpa_trace_remove_ref(ptr, name, addr) do { } while (0)
+#define wpa_trace_check_ref(addr) do { } while (0)
+
+#endif /* WPA_TRACE */
+
+
+#ifdef WPA_TRACE_BFD
+
+void wpa_trace_dump_funcname(const char *title, void *pc);
+
+#else /* WPA_TRACE_BFD */
+
+#define wpa_trace_dump_funcname(title, pc) do { } while (0)
+
+#endif /* WPA_TRACE_BFD */
+
+#endif /* TRACE_H */