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Subject[PATCH v14 17/23] perf config: Add 'list-all' option to perf-config
Date
'list-all' option is to display both current config variables
and all possible config variables with default values.
The syntax examples are like below

perf config [<file-option>] [options]

display all perf config with default values.
# perf config -a | --list-all

Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
---
tools/perf/Documentation/perf-config.txt | 6 +
tools/perf/builtin-config.c | 228 ++++++++++++++++++++++++++++++-
2 files changed, 232 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-config.txt b/tools/perf/Documentation/perf-config.txt
index 697ecff..dfb0d44 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 c43234e..96f53dc 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -21,17 +21,160 @@ static const char * const config_usage[] = {
};

enum actions {
- ACTION_LIST = 1
+ ACTION_LIST = 1,
+ ACTION_LIST_ALL
} actions;

static struct option config_options[] = {
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_BOOLEAN(0, "system", &use_system_config, "use system config file"),
OPT_BOOLEAN(0, "user", &use_user_config, "use user config file"),
OPT_END()
};

+enum config_idx {
+ CONFIG_COLORS_TOP,
+ CONFIG_COLORS_MEDIUM,
+ CONFIG_COLORS_NORMAL,
+ CONFIG_COLORS_SELECTED,
+ CONFIG_COLORS_JUMP_ARROWS,
+ CONFIG_COLORS_ADDR,
+ CONFIG_COLORS_ROOT,
+ CONFIG_TUI_REPORT,
+ CONFIG_TUI_ANNOTATE,
+ CONFIG_TUI_TOP,
+ CONFIG_BUILDID_DIR,
+ CONFIG_ANNOTATE_HIDE_SRC_CODE,
+ CONFIG_ANNOTATE_USE_OFFSET,
+ CONFIG_ANNOTATE_JUMP_ARROWS,
+ CONFIG_ANNOTATE_SHOW_NR_JUMPS,
+ CONFIG_ANNOTATE_SHOW_LINENR,
+ CONFIG_ANNOTATE_SHOW_TOTAL_PERIOD,
+ CONFIG_GTK_ANNOTATE,
+ CONFIG_GTK_REPORT,
+ CONFIG_GTK_TOP,
+ CONFIG_PAGER_CMD,
+ CONFIG_PAGER_REPORT,
+ CONFIG_PAGER_ANNOTATE,
+ CONFIG_PAGER_TOP,
+ CONFIG_PAGER_DIFF,
+ CONFIG_HELP_FORMAT,
+ CONFIG_HELP_AUTOCORRECT,
+ CONFIG_HIST_PERCENTAGE,
+ CONFIG_UI_SHOW_HEADERS,
+ CONFIG_CALL_GRAPH_RECORD_MODE,
+ CONFIG_CALL_GRAPH_DUMP_SIZE,
+ CONFIG_CALL_GRAPH_PRINT_TYPE,
+ CONFIG_CALL_GRAPH_ORDER,
+ CONFIG_CALL_GRAPH_SORT_KEY,
+ CONFIG_CALL_GRAPH_THRESHOLD,
+ CONFIG_CALL_GRAPH_PRINT_LIMIT,
+ CONFIG_REPORT_GROUP,
+ CONFIG_REPORT_CHILDREN,
+ CONFIG_REPORT_PERCENT_LIMIT,
+ CONFIG_REPORT_QUEUE_SIZE,
+ CONFIG_TOP_CHILDREN,
+ CONFIG_MAN_VIEWER,
+ CONFIG_KMEM_DEFAULT,
+};
+
+enum config_type {
+ CONFIG_TYPE_BOOL,
+ CONFIG_TYPE_INT,
+ CONFIG_TYPE_LONG,
+ CONFIG_TYPE_U64,
+ CONFIG_TYPE_FLOAT,
+ CONFIG_TYPE_DOUBLE,
+ CONFIG_TYPE_STRING,
+ /* special type */
+ CONFIG_END
+};
+
+struct config_item {
+ const char *section;
+ const char *name;
+ union {
+ bool b;
+ int i;
+ u32 l;
+ u64 ll;
+ float f;
+ double d;
+ const char *s;
+ } value;
+ enum config_type type;
+};
+
+#define CONF_VAR(_sec, _name, _field, _val, _type) \
+ { .section = _sec, .name = _name, .value._field = _val, .type = _type }
+
+#define CONF_BOOL_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, b, _val, CONFIG_TYPE_BOOL)
+#define CONF_INT_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, i, _val, CONFIG_TYPE_INT)
+#define CONF_LONG_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, l, _val, CONFIG_TYPE_LONG)
+#define CONF_U64_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, ll, _val, CONFIG_TYPE_U64)
+#define CONF_FLOAT_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, f, _val, CONFIG_TYPE_FLOAT)
+#define CONF_DOUBLE_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, d, _val, CONFIG_TYPE_DOUBLE)
+#define CONF_STR_VAR(_idx, _sec, _name, _val) \
+ [CONFIG_##_idx] = CONF_VAR(_sec, _name, s, _val, CONFIG_TYPE_STRING)
+#define CONF_END() { .type = CONFIG_END }
+
+struct config_item default_configs[] = {
+ CONF_STR_VAR(COLORS_TOP, "colors", "top", "red, default"),
+ CONF_STR_VAR(COLORS_MEDIUM, "colors", "medium", "green, default"),
+ CONF_STR_VAR(COLORS_NORMAL, "colors", "normal", "lightgray, default"),
+ CONF_STR_VAR(COLORS_SELECTED, "colors", "selected", "white, lightgray"),
+ CONF_STR_VAR(COLORS_JUMP_ARROWS, "colors", "jump_arrows", "blue, default"),
+ CONF_STR_VAR(COLORS_ADDR, "colors", "addr", "magenta, default"),
+ CONF_STR_VAR(COLORS_ROOT, "colors", "root", "white, blue"),
+ CONF_BOOL_VAR(TUI_REPORT, "tui", "report", true),
+ CONF_BOOL_VAR(TUI_ANNOTATE, "tui", "annotate", true),
+ CONF_BOOL_VAR(TUI_TOP, "tui", "top", true),
+ CONF_STR_VAR(BUILDID_DIR, "buildid", "dir", "~/.debug"),
+ CONF_BOOL_VAR(ANNOTATE_HIDE_SRC_CODE, "annotate", "hide_src_code", false),
+ CONF_BOOL_VAR(ANNOTATE_USE_OFFSET, "annotate", "use_offset", true),
+ CONF_BOOL_VAR(ANNOTATE_JUMP_ARROWS, "annotate", "jump_arrows", true),
+ CONF_BOOL_VAR(ANNOTATE_SHOW_NR_JUMPS, "annotate", "show_nr_jumps", false),
+ CONF_BOOL_VAR(ANNOTATE_SHOW_LINENR, "annotate", "show_linenr", false),
+ CONF_BOOL_VAR(ANNOTATE_SHOW_TOTAL_PERIOD, "annotate", "show_total_period", false),
+ CONF_BOOL_VAR(GTK_ANNOTATE, "gtk", "annotate", false),
+ CONF_BOOL_VAR(GTK_REPORT, "gtk", "report", false),
+ CONF_BOOL_VAR(GTK_TOP, "gtk", "top", false),
+ CONF_BOOL_VAR(PAGER_CMD, "pager", "cmd", true),
+ CONF_BOOL_VAR(PAGER_REPORT, "pager", "report", true),
+ CONF_BOOL_VAR(PAGER_ANNOTATE, "pager", "annotate", true),
+ CONF_BOOL_VAR(PAGER_TOP, "pager", "top", true),
+ CONF_BOOL_VAR(PAGER_DIFF, "pager", "diff", true),
+ CONF_STR_VAR(HELP_FORMAT, "help", "format", "man"),
+ CONF_INT_VAR(HELP_AUTOCORRECT, "help", "autocorrect", 0),
+ CONF_STR_VAR(HIST_PERCENTAGE, "hist", "percentage", "absolute"),
+ CONF_BOOL_VAR(UI_SHOW_HEADERS, "ui", "show-headers", true),
+ CONF_STR_VAR(CALL_GRAPH_RECORD_MODE, "call-graph", "record-mode", "fp"),
+ CONF_LONG_VAR(CALL_GRAPH_DUMP_SIZE, "call-graph", "dump-size", 8192),
+ CONF_STR_VAR(CALL_GRAPH_PRINT_TYPE, "call-graph", "print-type", "graph"),
+ CONF_STR_VAR(CALL_GRAPH_ORDER, "call-graph", "order", "callee"),
+ CONF_STR_VAR(CALL_GRAPH_SORT_KEY, "call-graph", "sort-key", "function"),
+ CONF_DOUBLE_VAR(CALL_GRAPH_THRESHOLD, "call-graph", "threshold", 0.5),
+ CONF_LONG_VAR(CALL_GRAPH_PRINT_LIMIT, "call-graph", "print-limit", 0),
+ CONF_BOOL_VAR(REPORT_GROUP, "report", "group", true),
+ CONF_BOOL_VAR(REPORT_CHILDREN, "report", "children", true),
+ CONF_FLOAT_VAR(REPORT_PERCENT_LIMIT, "report", "percent-limit", 0),
+ CONF_U64_VAR(REPORT_QUEUE_SIZE, "report", "queue-size", 0),
+ CONF_BOOL_VAR(TOP_CHILDREN, "top", "children", true),
+ CONF_STR_VAR(MAN_VIEWER, "man", "viewer", "man"),
+ CONF_STR_VAR(KMEM_DEFAULT, "kmem", "default", "slab"),
+ CONF_END()
+};
+
static struct config_section *find_section(struct list_head *sections,
const char *section_name)
{
@@ -112,6 +255,75 @@ static int add_element(struct list_head *head,
return 0;
}

+static char *get_value(struct config_item *config)
+{
+ int ret = 0;
+ char *value;
+
+ if (config->type == CONFIG_TYPE_BOOL)
+ ret = asprintf(&value, "%s",
+ config->value.b ? "true" : "false");
+ else if (config->type == CONFIG_TYPE_INT)
+ ret = asprintf(&value, "%d", config->value.i);
+ else if (config->type == CONFIG_TYPE_LONG)
+ ret = asprintf(&value, "%u", config->value.l);
+ else if (config->type == CONFIG_TYPE_U64)
+ ret = asprintf(&value, "%"PRId64, config->value.ll);
+ else if (config->type == CONFIG_TYPE_FLOAT)
+ ret = asprintf(&value, "%f", config->value.f);
+ else if (config->type == CONFIG_TYPE_DOUBLE)
+ ret = asprintf(&value, "%f", config->value.d);
+ else
+ ret = asprintf(&value, "%s", config->value.s);
+
+ if (ret < 0)
+ return NULL;
+
+ return value;
+}
+
+static int show_all_config(struct list_head *sections)
+{
+ int i;
+ bool has_config;
+ struct config_section *section;
+ struct config_element *element;
+
+ for (i = 0; default_configs[i].type != CONFIG_END; i++) {
+ struct config_item *config = &default_configs[i];
+ find_config(sections, &section, &element,
+ config->section, config->name);
+
+ if (!element) {
+ char *value = get_value(config);
+
+ printf("%s.%s=%s\n", config->section, config->name, value);
+ free(value);
+ } else
+ printf("%s.%s=%s\n", section->name,
+ element->name, element->value);
+ }
+
+ /* Print config variables the default configsets haven't */
+ list_for_each_entry(section, sections, list) {
+ list_for_each_entry(element, &section->element_head, list) {
+ has_config = false;
+ for (i = 0; default_configs[i].type != CONFIG_END; i++) {
+ if (!strcmp(default_configs[i].section, section->name) &&
+ !strcmp(default_configs[i].name, element->name)) {
+ has_config = true;
+ break;
+ }
+ }
+ if (!has_config)
+ printf("%s.%s=%s\n", section->name,
+ element->name, element->value);
+ }
+ }
+
+ return 0;
+}
+
static int collect_current_config(const char *var, const char *value,
void *spec_sections)
{
@@ -184,6 +396,9 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
struct list_head sections;
char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));

+ set_option_flag(config_options, 'l', "list", PARSE_OPT_EXCLUSIVE);
+ set_option_flag(config_options, 'a', "list-all", PARSE_OPT_EXCLUSIVE);
+
argc = parse_options(argc, argv, config_options, config_usage,
PARSE_OPT_STOP_AT_NON_OPTION);

@@ -204,10 +419,19 @@ int cmd_config(int argc, const char **argv, const char *prefix __maybe_unused)
perf_config(collect_current_config, &sections);

switch (actions) {
+ case ACTION_LIST_ALL:
+ if (argc == 0) {
+ ret = show_all_config(&sections);
+ break;
+ }
+ /* fall through */
case ACTION_LIST:
if (argc) {
pr_err("Error: takes no arguments\n");
- parse_options_usage(config_usage, config_options, "l", 1);
+ if (actions == ACTION_LIST_ALL)
+ parse_options_usage(config_usage, config_options, "a", 1);
+ else
+ parse_options_usage(config_usage, config_options, "l", 1);
} else {
ret = show_config(&sections);
if (ret < 0) {
--
2.5.0
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