diff options
author | Namhyung Kim <namhyung@kernel.org> | 2015-12-23 22:08:41 +0900 |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-01-06 20:11:11 -0300 |
commit | be45d40efec96558c489579bbf93465e90b10abe (patch) | |
tree | d525ab0ff5cf272ccb90028d4ca98e8877986b06 /tools | |
parent | 723928340c9d28d92dcaff8b8fbc9100a1cf9429 (diff) |
tools lib traceevent: Factor out and export print_event_field[s]()
The print_event_field() and print_event_fields() functions print basic
information of a given field or event without the print format. They'll
be used by dynamic sort keys later.
Committer note:
Rename it to pevent_print_field[s]() to get proper namespacing, as
discussed with Steven Rostedt.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1450876121-22494-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/lib/traceevent/event-parse.c | 129 | ||||
-rw-r--r-- | tools/lib/traceevent/event-parse.h | 4 |
2 files changed, 72 insertions, 61 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 68276f35e323..ea69ce35e902 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4735,73 +4735,80 @@ static int is_printable_array(char *p, unsigned int len) return 1; } -static void print_event_fields(struct trace_seq *s, void *data, - int size __maybe_unused, - struct event_format *event) +void pevent_print_field(struct trace_seq *s, void *data, + struct format_field *field) { - struct format_field *field; unsigned long long val; unsigned int offset, len, i; - - field = event->format.fields; - while (field) { - trace_seq_printf(s, " %s=", field->name); - if (field->flags & FIELD_IS_ARRAY) { - offset = field->offset; - len = field->size; - if (field->flags & FIELD_IS_DYNAMIC) { - val = pevent_read_number(event->pevent, data + offset, len); - offset = val; - len = offset >> 16; - offset &= 0xffff; - } - if (field->flags & FIELD_IS_STRING && - is_printable_array(data + offset, len)) { - trace_seq_printf(s, "%s", (char *)data + offset); - } else { - trace_seq_puts(s, "ARRAY["); - for (i = 0; i < len; i++) { - if (i) - trace_seq_puts(s, ", "); - trace_seq_printf(s, "%02x", - *((unsigned char *)data + offset + i)); - } - trace_seq_putc(s, ']'); - field->flags &= ~FIELD_IS_STRING; - } + struct pevent *pevent = field->event->pevent; + + if (field->flags & FIELD_IS_ARRAY) { + offset = field->offset; + len = field->size; + if (field->flags & FIELD_IS_DYNAMIC) { + val = pevent_read_number(pevent, data + offset, len); + offset = val; + len = offset >> 16; + offset &= 0xffff; + } + if (field->flags & FIELD_IS_STRING && + is_printable_array(data + offset, len)) { + trace_seq_printf(s, "%s", (char *)data + offset); } else { - val = pevent_read_number(event->pevent, data + field->offset, - field->size); - if (field->flags & FIELD_IS_POINTER) { - trace_seq_printf(s, "0x%llx", val); - } else if (field->flags & FIELD_IS_SIGNED) { - switch (field->size) { - case 4: - /* - * If field is long then print it in hex. - * A long usually stores pointers. - */ - if (field->flags & FIELD_IS_LONG) - trace_seq_printf(s, "0x%x", (int)val); - else - trace_seq_printf(s, "%d", (int)val); - break; - case 2: - trace_seq_printf(s, "%2d", (short)val); - break; - case 1: - trace_seq_printf(s, "%1d", (char)val); - break; - default: - trace_seq_printf(s, "%lld", val); - } - } else { + trace_seq_puts(s, "ARRAY["); + for (i = 0; i < len; i++) { + if (i) + trace_seq_puts(s, ", "); + trace_seq_printf(s, "%02x", + *((unsigned char *)data + offset + i)); + } + trace_seq_putc(s, ']'); + field->flags &= ~FIELD_IS_STRING; + } + } else { + val = pevent_read_number(pevent, data + field->offset, + field->size); + if (field->flags & FIELD_IS_POINTER) { + trace_seq_printf(s, "0x%llx", val); + } else if (field->flags & FIELD_IS_SIGNED) { + switch (field->size) { + case 4: + /* + * If field is long then print it in hex. + * A long usually stores pointers. + */ if (field->flags & FIELD_IS_LONG) - trace_seq_printf(s, "0x%llx", val); + trace_seq_printf(s, "0x%x", (int)val); else - trace_seq_printf(s, "%llu", val); + trace_seq_printf(s, "%d", (int)val); + break; + case 2: + trace_seq_printf(s, "%2d", (short)val); + break; + case 1: + trace_seq_printf(s, "%1d", (char)val); + break; + default: + trace_seq_printf(s, "%lld", val); } + } else { + if (field->flags & FIELD_IS_LONG) + trace_seq_printf(s, "0x%llx", val); + else + trace_seq_printf(s, "%llu", val); } + } +} + +void pevent_print_fields(struct trace_seq *s, void *data, + int size __maybe_unused, struct event_format *event) +{ + struct format_field *field; + + field = event->format.fields; + while (field) { + trace_seq_printf(s, " %s=", field->name); + pevent_print_field(s, data, field); field = field->next; } } @@ -4827,7 +4834,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event if (event->flags & EVENT_FL_FAILED) { trace_seq_printf(s, "[FAILED TO PARSE]"); - print_event_fields(s, data, size, event); + pevent_print_fields(s, data, size, event); return; } @@ -5301,7 +5308,7 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event, int print_pretty = 1; if (event->pevent->print_raw || (event->flags & EVENT_FL_PRINTRAW)) - print_event_fields(s, record->data, record->size, event); + pevent_print_fields(s, record->data, record->size, event); else { if (event->handler && !(event->flags & EVENT_FL_NOHANDLE)) diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 6fc83c7edbe9..706d9bc24066 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -705,6 +705,10 @@ struct cmdline *pevent_data_pid_from_comm(struct pevent *pevent, const char *com struct cmdline *next); int pevent_cmdline_pid(struct pevent *pevent, struct cmdline *cmdline); +void pevent_print_field(struct trace_seq *s, void *data, + struct format_field *field); +void pevent_print_fields(struct trace_seq *s, void *data, + int size __maybe_unused, struct event_format *event); 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, |