A option 'list-all' is to display both current config variables and
all possible config variables with default values.
The syntax examples are like below
perf config [options]
display all perf config with default values.
# perf config -a | --list-all
Signed-off-by: Taeung Song <treeze.tae...@gmail.com>
---
tools/perf/Documentation/perf-config.txt | 6 +
tools/perf/builtin-config.c | 490 ++++++++++++++++++++++++++++++-
tools/perf/util/cache.h | 15 +
3 files changed, 510 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-config.txt
b/tools/perf/Documentation/perf-config.txt
index b2abb16..d95baad 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -9,6 +9,8 @@ SYNOPSIS
--------
[verse]
'perf config' [<file-option>] -l | --list
+or
+'perf config' [<file-option>] -a | --list-all
DESCRIPTION
-----------
@@ -29,6 +31,10 @@ OPTIONS
For writing and reading options: write to system-wide
'$(sysconfdir)/perfconfig' or read it.
+-a::
+--list-all::
+ Show current and all possible config variables with default values.
+
CONFIGURATION FILE
------------------
diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index df70b90..ac13aaf 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -22,7 +22,8 @@ static const char * const config_usage[] = {
};
enum actions {
- ACTION_LIST = 1
+ ACTION_LIST = 1,
+ ACTION_LIST_ALL
} actions;
static const struct option config_options[] = {
@@ -32,9 +33,362 @@ static const struct option config_options[] = {
OPT_GROUP("Action"),
OPT_SET_UINT('l', "list", &actions,
"show current config variables", ACTION_LIST),
+ OPT_SET_UINT('a', "list-all", &actions,
+ "show current and all possible config variables with
default values",
+ ACTION_LIST_ALL),
OPT_END()
};
+/* section names */
+#define COLORS "colors"
+#define TUI "tui"
+#define BUILDID "buildid"
+#define ANNOTATE "annotate"
+#define GTK "gtk"
+#define PAGER "pager"
+#define HELP "help"
+#define HIST "hist"
+#define UI "ui"
+#define CALL_GRAPH "call-graph"
+#define REPORT "report"
+#define TOP "top"
+#define MAN "man"
+#define KMEM "kmem"
+
+/* config variable types */
+#define TYPE_INT "int"
+#define TYPE_LONG "long"
+#define TYPE_DIRNAME "dirname"
+#define TYPE_BOOL "bool"
+#define TYPE_ON_OFF "on_off"
+
+static struct default_configset {
+ const char *section_name;
+ const char *name, *value, *type;
+
+} default_configsets[] = {
+ {
+ .section_name = COLORS,
+ .name = "top",
+ .value = "red, default",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "medium",
+ .value = "green, default",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "normal",
+ .value = "lightgray, default",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "selected",
+ .value = "white, lightgray",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "code",
+ .value = "blue, default",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "addr",
+ .value = "magenta, default",
+ .type = NULL,
+ },
+ {
+ .section_name = COLORS,
+ .name = "root",
+ .value = "white, blue",
+ .type = NULL,
+ },
+ {
+ .section_name = TUI,
+ .name = "report",
+ .value = "on",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = TUI,
+ .name = "annotate",
+ .value = "on",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = TUI,
+ .name = "top",
+ .value = "on",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = BUILDID,
+ .name = "dir",
+ .value = "~/.debug",
+ .type = TYPE_DIRNAME,
+ },
+ {
+ .section_name = ANNOTATE,
+ .name = "hide_src_code",
+ .value = "false",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = ANNOTATE,
+ .name = "use_offset",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = ANNOTATE,
+ .name = "jump_arrows",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = ANNOTATE,
+ .name = "show_nr_jumps",
+ .value = "false",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = GTK,
+ .name = "annotate",
+ .value = "off",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = GTK,
+ .name = "report",
+ .value = "off",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = GTK,
+ .name = "top",
+ .value = "off",
+ .type = TYPE_ON_OFF,
+ },
+ {
+ .section_name = PAGER,
+ .name = "cmd",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = PAGER,
+ .name = "report",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = PAGER,
+ .name = "annotate",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = PAGER,
+ .name = "record",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = PAGER,
+ .name = "top",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = PAGER,
+ .name = "diff",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = HELP,
+ .name = "format",
+ .value = "man",
+ .type = NULL,
+ },
+ {
+ .section_name = HELP,
+ .name = "autocorrect",
+ .value = "0",
+ .type = NULL,
+ },
+ {
+ .section_name = HIST,
+ .name = "percentage",
+ .value = "absolute",
+ .type = NULL,
+ },
+ {
+ .section_name = UI,
+ .name = "show-headers",
+ .value = "true",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "record-mode",
+ .value = "fp",
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "dump-size",
+ .value = "8192",
+ .type = TYPE_INT,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "print-type",
+ .value = "fractal",
+ .type = NULL,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "order",
+ .value = "caller",
+ .type = NULL,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "sort-key",
+ .value = "function",
+ .type = NULL,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "threshold",
+ .value = "0.5",
+ .type = TYPE_LONG,
+ },
+ {
+ .section_name = CALL_GRAPH,
+ .name = "print-limit",
+ .value = "0",
+ .type = TYPE_INT,
+ },
+ {
+ .section_name = REPORT,
+ .name = "children",
+ .value = "false",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = REPORT,
+ .name = "percent-limit",
+ .value = "0",
+ .type = TYPE_INT,
+ },
+ {
+ .section_name = REPORT,
+ .name = "queue-size",
+ .value = "0",
+ .type = TYPE_INT,
+ },
+ {
+ .section_name = TOP,
+ .name = "children",
+ .value = "false",
+ .type = TYPE_BOOL,
+ },
+ {
+ .section_name = MAN,
+ .name = "viewer",
+ .value = "man",
+ .type = NULL,
+ },
+ {
+ .section_name = KMEM,
+ .name = "default",
+ .value = "slab",
+ .type = NULL,
+ },
+ {
+ .section_name = NULL,
+ .name = NULL,
+ .value = NULL,
+ .type = NULL,
+ },
+};
+
+static struct config_section *find_section(const char *section_name)
+{
+ struct config_section *section_node;
+
+ list_for_each_entry(section_node, §ions, list)
+ if (!strcmp(section_node->name, section_name))
+ return section_node;
+
+ return NULL;
+}
+
+static struct config_element *find_element(const char *name,
+ struct config_section *section_node)
+{
+ struct config_element *element_node;
+
+ list_for_each_entry(element_node, §ion_node->element_head, list)
+ if (!strcmp(element_node->name, name))
+ return element_node;
+
+ return NULL;
+}
+
+static struct config_section *init_section(const char *section_name)
+{
+ struct config_section *section_node;
+
+ section_node = zalloc(sizeof(*section_node));
+ if (!section_node)
+ return NULL;
+
+ INIT_LIST_HEAD(§ion_node->element_head);
+ section_node->name = strdup(section_name);
+ if (!section_node->name) {
+ pr_err("%s: strdup failed\n", __func__);
+ free(section_node);
+ return NULL;
+ }
+
+ return section_node;
+}
+
+static int add_element(struct list_head *head,
+ const char *name, const char *value)
+{
+ struct config_element *element_node;
+
+ element_node = zalloc(sizeof(*element_node));
+ if (!element_node)
+ return -1;
+
+ element_node->name = strdup(name);
+ if (!element_node->name) {
+ pr_err("%s: strdup failed\n", __func__);
+ goto out_free;
+ }
+ if (value)
+ element_node->value = (char *)value;
+ else
+ element_node->value = NULL;
+
+ list_add_tail(&element_node->list, head);
+ return 0;
+
+out_free:
+ free(element_node);
+ return -1;
+}
+
static int show_config(const char *key, const char *value,
void *cb __maybe_unused)
{
@@ -46,6 +400,132 @@ static int show_config(const char *key, const char *value,
return 0;
}
+static void find_config(struct config_section **section_node,
+ struct config_element **element_node,
+ const char *section_name, const char *name)
+{
+ *section_node = find_section(section_name);
+
+ if (*section_node != NULL)
+ *element_node = find_element(name, *section_node);
+ else
+ *element_node = NULL;
+}
+
+static char *normalize_value(const char *section_name, const char *name, const
char *value)
+{
+ int i, ret = 0;
+ char key[BUFSIZ];
+ char *normalized;
+
+ scnprintf(key, sizeof(key), "%s.%s", section_name, name);
+ for (i = 0; default_configsets[i].section_name != NULL; i++) {
+ struct default_configset *config = &default_configsets[i];
+
+ if (!strcmp(config->section_name, section_name)
+ && !strcmp(config->name, name)) {
+ if (!config->type)
+ ret = asprintf(&normalized, "%s", value);
+ else if (!strcmp(config->type, TYPE_BOOL))
+ ret = asprintf(&normalized, "%s",
+ perf_config_bool(key, value) ?
"true" : "false");
+ else if (!strcmp(config->type, TYPE_ON_OFF))
+ ret = asprintf(&normalized, "%s",
+ perf_config_bool(key, value) ?
"on" : "off");
+ else if (!strcmp(config->type, TYPE_INT))
+ ret = asprintf(&normalized, "%d",
+ perf_config_int(key, value));
+ else if (!strcmp(config->type, TYPE_LONG))
+ ret = asprintf(&normalized, "%"PRId64,
+ perf_config_u64(key, value));
+ else if (!strcmp(config->type, TYPE_DIRNAME))
+ ret = asprintf(&normalized, "%s",
+ perf_config_dirname(key, value));
+ if (ret < 0)
+ return NULL;
+
+ return normalized;
+ }
+ }
+
+ normalized = strdup(value);
+ if (!normalized) {
+ pr_err("%s: strdup failed\n", __func__);
+ return NULL;
+ }
+
+ return normalized;
+}
+
+static int collect_current_config(const char *var, const char *value,
+ void *cb __maybe_unused)
+{
+ struct config_section *section_node;
+ char *key = strdup(var);
+ char *section_name, *name;
+
+ if (!key) {
+ pr_err("%s: strdup failed\n", __func__);
+ return -1;
+ }
+
+ section_name = strsep(&key, ".");
+ name = strsep(&key, ".");
+ free(key);
+ if (name == NULL)
+ return -1;
+
+ section_node = find_section(section_name);
+ if (!section_node) {
+ section_node = init_section(section_name);
+ if (!section_node)
+ return -1;
+ list_add_tail(§ion_node->list, §ions);
+ }
+
+ return add_element(§ion_node->element_head, name,
+ normalize_value(section_name, name, value));
+}
+
+static int show_all_config(void)
+{
+ int i;
+ bool has_config;
+ struct config_section *section_node;
+ struct config_element *element_node;
+
+ for (i = 0; default_configsets[i].section_name != NULL; i++) {
+ find_config(§ion_node, &element_node,
+ default_configsets[i].section_name,
default_configsets[i].name);
+
+ if (!element_node)
+ printf("%s.%s=%s\n", default_configsets[i].section_name,
+ default_configsets[i].name,
default_configsets[i].value);
+ else
+ printf("%s.%s=%s\n", section_node->name,
+ element_node->name, element_node->value);
+ }
+
+ /* Print config variables the default configsets haven't */
+ list_for_each_entry(section_node, §ions, list) {
+ list_for_each_entry(element_node, §ion_node->element_head,
list) {
+ has_config = false;
+ for (i = 0; default_configsets[i].section_name != NULL;
i++) {
+ if (!strcmp(default_configsets[i].section_name,
section_node->name)
+ && !strcmp(default_configsets[i].name,
element_node->name)) {
+ has_config = true;
+ break;
+ }
+ }
+ if (!has_config)
+ printf("%s.%s=%s\n", section_node->name,
+ element_node->name, element_node->value);
+ }
+ }
+
+ return 0;
+}
+
int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
{
int ret = 0;
@@ -62,7 +542,15 @@ int cmd_config(int argc, const char **argv, const char
*prefix __maybe_unused)
access(config_file_name, R_OK) == -1))
config_file_name = perf_etc_perfconfig();
+ INIT_LIST_HEAD(§ions);
+ perf_config_from_file(collect_current_config, config_file_name, NULL);
+
switch (actions) {
+ case ACTION_LIST_ALL:
+ if (argc == 0) {
+ ret = show_all_config();
+ break;
+ }
case ACTION_LIST:
default:
if (argc) {
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index bad3e4e..f49a5e2 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -1,6 +1,7 @@
#ifndef __PERF_CACHE_H
#define __PERF_CACHE_H
+#include <linux/list.h>
#include <stdbool.h>
#include "util.h"
#include "strbuf.h"
@@ -19,6 +20,20 @@
#define PERF_DEBUGFS_ENVIRONMENT "PERF_DEBUGFS_DIR"
#define PERF_TRACEFS_ENVIRONMENT "PERF_TRACEFS_DIR"
+struct config_element {
+ char *name;
+ char *value;
+ struct list_head list;
+};
+
+struct config_section {
+ char *name;
+ struct list_head element_head;
+ struct list_head list;
+};
+
+struct list_head sections;
+
typedef int (*config_fn_t)(const char *, const char *, void *);
extern int perf_default_config(const char *, const char *, void *);
extern int perf_config(config_fn_t fn, void *);
--
1.9.1
--
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