--- /dev/null
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright (c) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
+ */
+
+#ifndef CTF_METADATA_LOGGING_H
+#define CTF_METADATA_LOGGING_H
+
+#include <babeltrace2/babeltrace.h>
+
+#include "logging/comp-logging.h"
+#include "logging/log.h"
+
+/*
+ * This global log level is for the generated lexer and parser: we can't
+ * use a contextual log level for their "tracing", so they rely on this.
+ */
+BT_LOG_LEVEL_EXTERN_SYMBOL(ctf_plugin_metadata_log_level);
+
+/*
+ * To be used by functions without a context structure to pass all the
+ * logging configuration at once.
+ */
+struct meta_log_config
+{
+ bt_logging_level log_level;
+
+ /* Weak, exactly one of these must be set */
+ bt_self_component *self_comp;
+ bt_self_component_class *self_comp_class;
+};
+
+#define _BT_LOGT_LINENO(_lineno, _msg, args...) \
+ BT_LOGT("At line %u in metadata stream: " _msg, _lineno, ##args)
+
+#define _BT_LOGW_LINENO(_lineno, _msg, args...) \
+ BT_LOGW("At line %u in metadata stream: " _msg, _lineno, ##args)
+
+#define _BT_LOGE_APPEND_CAUSE_LINENO(_lineno, _msg, args...) \
+ do { \
+ BT_LOGE("At line %u in metadata stream: " _msg, _lineno, ##args); \
+ (void) BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN( \
+ "CTF metadata parser", "At line %u in metadata stream: " _msg, _lineno, ##args); \
+ } while (0)
+
+#define _BT_COMP_LOGT_LINENO(_lineno, _msg, args...) \
+ BT_COMP_LOGT("At line %u in metadata stream: " _msg, _lineno, ##args)
+
+#define _BT_COMP_LOGW_LINENO(_lineno, _msg, args...) \
+ BT_COMP_LOGW("At line %u in metadata stream: " _msg, _lineno, ##args)
+
+#define _BT_COMP_LOGE_LINENO(_lineno, _msg, args...) \
+ BT_COMP_LOGE("At line %u in metadata stream: " _msg, _lineno, ##args)
+
+#define _BT_COMP_LOGE_APPEND_CAUSE_LINENO(_lineno, _msg, args...) \
+ BT_COMP_LOGE_APPEND_CAUSE(BT_COMP_LOG_SELF_COMP, "At line %u in metadata stream: " _msg, \
+ _lineno, ##args)
+
+#define _BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(_msg, args...) \
+ BT_COMP_OR_COMP_CLASS_LOGE_APPEND_CAUSE(BT_COMP_LOG_SELF_COMP, BT_COMP_LOG_SELF_COMP_CLASS, \
+ _msg, ##args)
+
+#endif /* CTF_METADATA_LOGGING_H */