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-rw-r--r--tools/lib/traceevent/event-parse.h46
1 files changed, 40 insertions, 6 deletions
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 5772ad8cb386..24a4bbabc5d5 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -24,8 +24,8 @@
#include <stdarg.h>
#include <regex.h>
-#ifndef __unused
-#define __unused __attribute__ ((unused))
+#ifndef __maybe_unused
+#define __maybe_unused __attribute__((unused))
#endif
/* ----------------------- trace_seq ----------------------- */
@@ -49,7 +49,7 @@ struct pevent_record {
int cpu;
int ref_count;
int locked; /* Do not free, even if ref_count is zero */
- void *private;
+ void *priv;
#if DEBUG_RECORD
struct pevent_record *prev;
struct pevent_record *next;
@@ -106,7 +106,7 @@ struct plugin_option {
char *plugin_alias;
char *description;
char *value;
- void *private;
+ void *priv;
int set;
};
@@ -345,6 +345,35 @@ enum pevent_flag {
PEVENT_NSEC_OUTPUT = 1, /* output in NSECS */
};
+#define PEVENT_ERRORS \
+ _PE(MEM_ALLOC_FAILED, "failed to allocate memory"), \
+ _PE(PARSE_EVENT_FAILED, "failed to parse event"), \
+ _PE(READ_ID_FAILED, "failed to read event id"), \
+ _PE(READ_FORMAT_FAILED, "failed to read event format"), \
+ _PE(READ_PRINT_FAILED, "failed to read event print fmt"), \
+ _PE(OLD_FTRACE_ARG_FAILED,"failed to allocate field name for ftrace"),\
+ _PE(INVALID_ARG_TYPE, "invalid argument type")
+
+#undef _PE
+#define _PE(__code, __str) PEVENT_ERRNO__ ## __code
+enum pevent_errno {
+ PEVENT_ERRNO__SUCCESS = 0,
+
+ /*
+ * Choose an arbitrary negative big number not to clash with standard
+ * errno since SUS requires the errno has distinct positive values.
+ * See 'Issue 6' in the link below.
+ *
+ * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
+ */
+ __PEVENT_ERRNO__START = -100000,
+
+ PEVENT_ERRORS,
+
+ __PEVENT_ERRNO__END,
+};
+#undef _PE
+
struct cmdline;
struct cmdline_list;
struct func_map;
@@ -509,8 +538,11 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
int long_size);
-int pevent_parse_event(struct pevent *pevent, const char *buf,
- unsigned long size, const char *sys);
+enum pevent_errno pevent_parse_event(struct pevent *pevent, const char *buf,
+ unsigned long size, const char *sys);
+enum pevent_errno pevent_parse_format(struct event_format **eventp, const char *buf,
+ unsigned long size, const char *sys);
+void pevent_free_format(struct event_format *event);
void *pevent_get_field_raw(struct trace_seq *s, struct event_format *event,
const char *name, struct pevent_record *record,
@@ -561,6 +593,8 @@ int pevent_data_pid(struct pevent *pevent, struct pevent_record *rec);
const char *pevent_data_comm_from_pid(struct pevent *pevent, int pid);
void pevent_event_info(struct trace_seq *s, struct event_format *event,
struct pevent_record *record);
+int pevent_strerror(struct pevent *pevent, enum pevent_errno errnum,
+ char *buf, size_t buflen);
struct event_format **pevent_list_events(struct pevent *pevent, enum event_sort_type);
struct format_field **pevent_event_common_fields(struct event_format *event);