From: Tom Zanussi <tom.zanussi@linux.intel.com>
To: Piotr Gregor <pgregor@quadrant-systems.co.uk>
Cc: "rostedt@goodmis.org" <rostedt@goodmis.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"mhiramat@kernel.org" <mhiramat@kernel.org>,
"namhyung@kernel.org" <namhyung@kernel.org>,
"vedang.patel@intel.com" <vedang.patel@intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-rt-users@vger.kernel.org" <linux-rt-users@vger.kernel.org>
Subject: Re: [PATCH 01/32] tracing: Add hist_field_name() accessor
Date: Thu, 13 Jul 2017 09:41:37 -0500 [thread overview]
Message-ID: <1499956897.3995.32.camel@tzanussi-mobl.amr.corp.intel.com> (raw)
In-Reply-To: <AM3PR02MB1308DE5C55A9ED048022E7DC1AC0@AM3PR02MB130.eurprd02.prod.outlook.com>
Hi Piotr,
On Thu, 2017-07-13 at 06:49 +0000, Piotr Gregor wrote:
> Hi Tom,
>
> Which repo and branch do you push these changes into?
>
https://github.com/tzanussi/linux-trace-inter-event.git tzanussi/inter-event-v01
Tom
> cheers,
> Piotr
>
> -----Original Message-----
> From: linux-rt-users-owner@vger.kernel.org [mailto:linux-rt-users-owner@vger.kernel.org] On Behalf Of Tom Zanussi
> Sent: 26 June 2017 23:49
> To: rostedt@goodmis.org
> Cc: tglx@linutronix.de; mhiramat@kernel.org; namhyung@kernel.org; vedang.patel@intel.com; linux-kernel@vger.kernel.org; linux-rt-users@vger.kernel.org; Tom Zanussi <tom.zanussi@linux.intel.com>
> Subject: [PATCH 01/32] tracing: Add hist_field_name() accessor
>
> In preparation for hist_fields that won't be strictly based on trace_event_fields, add a new hist_field_name() accessor to allow that flexibility and update associated users.
>
> Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
> ---
> kernel/trace/trace_events_hist.c | 68 +++++++++++++++++++++++++++-------------
> 1 file changed, 46 insertions(+), 22 deletions(-)
>
> diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
> index 1c21d0e..91ffc39 100644
> --- a/kernel/trace/trace_events_hist.c
> +++ b/kernel/trace/trace_events_hist.c
> @@ -146,6 +146,23 @@ struct hist_trigger_data {
> struct tracing_map *map;
> };
>
> +static const char *hist_field_name(struct hist_field *field,
> + unsigned int level)
> +{
> + const char *field_name = "";
> +
> + if (level > 1)
> + return field_name;
> +
> + if (field->field)
> + field_name = field->field->name;
> +
> + if (field_name == NULL)
> + field_name = "";
> +
> + return field_name;
> +}
> +
> static hist_field_fn_t select_value_fn(int field_size, int field_is_signed) {
> hist_field_fn_t fn = NULL;
> @@ -653,7 +670,6 @@ static int is_descending(const char *str) static int create_sort_keys(struct hist_trigger_data *hist_data) {
> char *fields_str = hist_data->attrs->sort_key_str;
> - struct ftrace_event_field *field = NULL;
> struct tracing_map_sort_key *sort_key;
> int descending, ret = 0;
> unsigned int i, j;
> @@ -670,7 +686,9 @@ static int create_sort_keys(struct hist_trigger_data *hist_data)
> }
>
> for (i = 0; i < TRACING_MAP_SORT_KEYS_MAX; i++) {
> + struct hist_field *hist_field;
> char *field_str, *field_name;
> + const char *test_name;
>
> sort_key = &hist_data->sort_keys[i];
>
> @@ -703,8 +721,11 @@ static int create_sort_keys(struct hist_trigger_data *hist_data)
> }
>
> for (j = 1; j < hist_data->n_fields; j++) {
> - field = hist_data->fields[j]->field;
> - if (field && (strcmp(field_name, field->name) == 0)) {
> + hist_field = hist_data->fields[j];
> + test_name = hist_field_name(hist_field, 0);
> + if (test_name == NULL)
> + continue;
> + if (strcmp(field_name, test_name) == 0) {
> sort_key->field_idx = j;
> descending = is_descending(field_str);
> if (descending < 0) {
> @@ -952,6 +973,7 @@ static void hist_trigger_stacktrace_print(struct seq_file *m,
> struct hist_field *key_field;
> char str[KSYM_SYMBOL_LEN];
> bool multiline = false;
> + const char *field_name;
> unsigned int i;
> u64 uval;
>
> @@ -963,26 +985,27 @@ static void hist_trigger_stacktrace_print(struct seq_file *m,
> if (i > hist_data->n_vals)
> seq_puts(m, ", ");
>
> + field_name = hist_field_name(key_field, 0);
> +
> if (key_field->flags & HIST_FIELD_FL_HEX) {
> uval = *(u64 *)(key + key_field->offset);
> - seq_printf(m, "%s: %llx",
> - key_field->field->name, uval);
> + seq_printf(m, "%s: %llx", field_name, uval);
> } else if (key_field->flags & HIST_FIELD_FL_SYM) {
> uval = *(u64 *)(key + key_field->offset);
> sprint_symbol_no_offset(str, uval);
> - seq_printf(m, "%s: [%llx] %-45s",
> - key_field->field->name, uval, str);
> + seq_printf(m, "%s: [%llx] %-45s", field_name,
> + uval, str);
> } else if (key_field->flags & HIST_FIELD_FL_SYM_OFFSET) {
> uval = *(u64 *)(key + key_field->offset);
> sprint_symbol(str, uval);
> - seq_printf(m, "%s: [%llx] %-55s",
> - key_field->field->name, uval, str);
> + seq_printf(m, "%s: [%llx] %-55s", field_name,
> + uval, str);
> } else if (key_field->flags & HIST_FIELD_FL_EXECNAME) {
> char *comm = elt->private_data;
>
> uval = *(u64 *)(key + key_field->offset);
> - seq_printf(m, "%s: %-16s[%10llu]",
> - key_field->field->name, comm, uval);
> + seq_printf(m, "%s: %-16s[%10llu]", field_name,
> + comm, uval);
> } else if (key_field->flags & HIST_FIELD_FL_SYSCALL) {
> const char *syscall_name;
>
> @@ -991,8 +1014,8 @@ static void hist_trigger_stacktrace_print(struct seq_file *m,
> if (!syscall_name)
> syscall_name = "unknown_syscall";
>
> - seq_printf(m, "%s: %-30s[%3llu]",
> - key_field->field->name, syscall_name, uval);
> + seq_printf(m, "%s: %-30s[%3llu]", field_name,
> + syscall_name, uval);
> } else if (key_field->flags & HIST_FIELD_FL_STACKTRACE) {
> seq_puts(m, "stacktrace:\n");
> hist_trigger_stacktrace_print(m,
> @@ -1000,15 +1023,14 @@ static void hist_trigger_stacktrace_print(struct seq_file *m,
> HIST_STACKTRACE_DEPTH);
> multiline = true;
> } else if (key_field->flags & HIST_FIELD_FL_LOG2) {
> - seq_printf(m, "%s: ~ 2^%-2llu", key_field->field->name,
> + seq_printf(m, "%s: ~ 2^%-2llu", field_name,
> *(u64 *)(key + key_field->offset));
> } else if (key_field->flags & HIST_FIELD_FL_STRING) {
> - seq_printf(m, "%s: %-50s", key_field->field->name,
> + seq_printf(m, "%s: %-50s", field_name,
> (char *)(key + key_field->offset));
> } else {
> uval = *(u64 *)(key + key_field->offset);
> - seq_printf(m, "%s: %10llu", key_field->field->name,
> - uval);
> + seq_printf(m, "%s: %10llu", field_name, uval);
> }
> }
>
> @@ -1021,13 +1043,13 @@ static void hist_trigger_stacktrace_print(struct seq_file *m,
> tracing_map_read_sum(elt, HITCOUNT_IDX));
>
> for (i = 1; i < hist_data->n_vals; i++) {
> + field_name = hist_field_name(hist_data->fields[i], 0);
> +
> if (hist_data->fields[i]->flags & HIST_FIELD_FL_HEX) {
> - seq_printf(m, " %s: %10llx",
> - hist_data->fields[i]->field->name,
> + seq_printf(m, " %s: %10llx", field_name,
> tracing_map_read_sum(elt, i));
> } else {
> - seq_printf(m, " %s: %10llu",
> - hist_data->fields[i]->field->name,
> + seq_printf(m, " %s: %10llu", field_name,
> tracing_map_read_sum(elt, i));
> }
> }
> @@ -1142,7 +1164,9 @@ static const char *get_hist_field_flags(struct hist_field *hist_field)
>
> static void hist_field_print(struct seq_file *m, struct hist_field *hist_field) {
> - seq_printf(m, "%s", hist_field->field->name);
> + const char *field_name = hist_field_name(hist_field, 0);
> +
> + seq_printf(m, "%s", field_name);
> if (hist_field->flags) {
> const char *flags_str = get_hist_field_flags(hist_field);
>
> --
> 1.9.3
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2017-07-13 14:41 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-26 22:49 [PATCH 00/32] tracing: Inter-event (e.g. latency) support Tom Zanussi
2017-06-26 22:49 ` [PATCH 01/32] tracing: Add hist_field_name() accessor Tom Zanussi
2017-07-13 6:49 ` Piotr Gregor
2017-07-13 14:41 ` Tom Zanussi [this message]
2017-07-14 2:19 ` Namhyung Kim
2017-06-26 22:49 ` [PATCH 02/32] tracing: Reimplement log2 Tom Zanussi
2017-07-14 2:33 ` Namhyung Kim
2017-07-14 16:13 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 03/32] ring-buffer: Add interface for setting absolute time stamps Tom Zanussi
2017-07-14 5:25 ` Namhyung Kim
2017-07-14 16:14 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 04/32] ring-buffer: Redefine the unimplemented RINGBUF_TIME_TIME_STAMP Tom Zanussi
2017-07-02 8:51 ` Joel Fernandes (Google)
2017-06-26 22:49 ` [PATCH 05/32] tracing: Give event triggers access to ring_buffer_event Tom Zanussi
2017-06-26 22:49 ` [PATCH 06/32] tracing: Add ring buffer event param to hist field functions Tom Zanussi
2017-06-26 22:49 ` [PATCH 07/32] tracing: Increase tracing map KEYS_MAX size Tom Zanussi
2017-06-26 22:49 ` [PATCH 08/32] tracing: Break out hist trigger assignment parsing Tom Zanussi
2017-06-26 22:49 ` [PATCH 09/32] tracing: Make traceprobe parsing code reusable Tom Zanussi
2017-06-26 22:49 ` [PATCH 10/32] tracing: Add NO_DISCARD event file flag Tom Zanussi
2017-06-26 22:49 ` [PATCH 11/32] tracing: Add post-trigger flag to hist trigger command Tom Zanussi
2017-06-26 22:49 ` [PATCH 12/32] tracing: Add hist trigger timestamp support Tom Zanussi
2017-07-17 6:00 ` Namhyung Kim
2017-07-17 16:57 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 13/32] tracing: Add per-element variable support to tracing_map Tom Zanussi
2017-06-26 22:49 ` [PATCH 14/32] tracing: Add hist_data member to hist_field Tom Zanussi
2017-06-26 22:49 ` [PATCH 15/32] tracing: Add usecs modifier for hist trigger timestamps Tom Zanussi
2017-06-26 22:49 ` [PATCH 16/32] tracing: Add variable support to hist triggers Tom Zanussi
2017-07-19 1:07 ` Namhyung Kim
2017-07-19 15:40 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 17/32] tracing: Account for variables in named trigger compatibility Tom Zanussi
2017-06-26 22:49 ` [PATCH 18/32] tracing: Add simple expression support to hist triggers Tom Zanussi
2017-07-21 2:02 ` Namhyung Kim
2017-07-21 16:29 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 19/32] tracing: Add variable reference handling " Tom Zanussi
2017-07-21 3:31 ` Namhyung Kim
2017-07-21 16:41 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 20/32] tracing: Add support for dynamic tracepoints Tom Zanussi
2017-06-26 22:49 ` [PATCH 21/32] tracing: Add hist trigger action hook Tom Zanussi
2017-06-26 22:49 ` [PATCH 22/32] tracing: Add support for 'synthetic' events Tom Zanussi
2017-07-23 12:00 ` Namhyung Kim
2017-07-24 16:11 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 23/32] tracing: Add 'onmatch' hist trigger action support Tom Zanussi
2017-07-23 15:12 ` Namhyung Kim
2017-07-24 16:17 ` Tom Zanussi
2017-07-26 2:40 ` Namhyung Kim
2017-07-26 16:38 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 24/32] tracing: Add 'onmax' " Tom Zanussi
2017-07-26 3:04 ` Namhyung Kim
2017-07-26 16:45 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 25/32] tracing: Allow whitespace to surround hist trigger filter Tom Zanussi
2017-06-26 22:49 ` [PATCH 26/32] tracing: Make duplicate count from tracing_map available Tom Zanussi
2017-06-26 22:49 ` [PATCH 27/32] tracing: Add cpu field for hist triggers Tom Zanussi
2017-06-26 22:49 ` [PATCH 28/32] tracing: Add hist trigger support for variable reference aliases Tom Zanussi
2017-06-26 22:49 ` [PATCH 29/32] tracing: Add 'last error' error facility for hist triggers Tom Zanussi
2017-07-26 4:39 ` Namhyung Kim
2017-07-26 16:47 ` Tom Zanussi
2017-06-26 22:49 ` [PATCH 30/32] tracing: Add inter-event hist trigger Documentation Tom Zanussi
2017-06-26 22:49 ` [PATCH 31/32] tracing: Make tracing_set_clock() non-static Tom Zanussi
2017-06-26 22:49 ` [PATCH 32/32] tracing: Add a clock attribute for hist triggers Tom Zanussi
2017-06-27 14:58 ` [PATCH 00/32] tracing: Inter-event (e.g. latency) support Steven Rostedt
2017-06-28 14:21 ` Masami Hiramatsu
2017-06-28 19:09 ` Tom Zanussi
2017-07-01 7:01 ` Joel Fernandes (Google)
2017-07-12 19:17 ` Tom Zanussi
2017-07-04 16:12 ` Sebastian Andrzej Siewior
2017-07-12 19:20 ` Tom Zanussi
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