diff options
Diffstat (limited to 'tools/lib/traceevent/event-parse.h')
| -rw-r--r-- | tools/lib/traceevent/event-parse.h | 46 |
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); |