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SubjectRe: [PATCH 1/4] perf config: Introduce default_config_item for all default config key-value pairs
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Hi, Arnaldo, Namhyung and jirka :)

On 05/10/2016 02:17 AM, Arnaldo Carvalho de Melo wrote:
> Em Mon, May 09, 2016 at 08:41:46PM +0900, Taeung Song escreveu:
>> We currently use values of actual type(int, bool, char *, etc.)
>> when initializing default perf config values.
>>
>> But I suggest using new config arrays(default_config_items)
>> that have all default perf config key-value pairs.
>>
>> Because if we do, we can manage default perf config values at one spot (like util/config.c)
>> and it can be easy and simple to modify default config values or add new configs.
>>
>> In the near future, this could be used when
>> showing all configs with default values,
>> initializing default values of each actual config variable
>> with the default_config_item arrays and etc.
>
> looks ok

Thank you for your review !! :-)

We can use this patch as it is, but what about this change ?

diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index 84414af..8e143fb 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -5,6 +5,9 @@
#include <linux/list.h>

enum perf_config_type {
+ /* special type */
+ CONFIG_END,
+
CONFIG_TYPE_BOOL,
CONFIG_TYPE_INT,
CONFIG_TYPE_LONG,
@@ -14,8 +17,10 @@ enum perf_config_type {
CONFIG_TYPE_STRING
};

+#define MAX_CONFIG_NAME 100
+
struct default_config_item {
- const char *name;
+ const char name[MAX_CONFIG_NAME];
union {
bool b;
int i;
@@ -62,7 +67,7 @@ struct perf_config_set {
#define CONF_STR_VAR(_name, _val) \
CONF_VAR(_name, s, _val, CONFIG_TYPE_STRING)
#define CONF_END() \
- { .name = NULL }
+ { .type = CONFIG_END }



Because if we do, we can use name of default_config_item
as a constant to replace values of actual type(int, char *, etc)
with colors_config_items[].name more easy e.g.
(Contrastively if we use 'name' member variable as 'const char *' type,
we can't use it as a constant like below. It is a limitation of C language.)


diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index 385d0de..207c62d 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -508,31 +508,31 @@ static struct ui_browser_colorset {
} ui_browser__colorsets[] = {
{
.colorset = HE_COLORSET_TOP,
- .name = "top",
+ .name = colors_config_items[CONFIG_COLORS_TOP].name,
},
{
.colorset = HE_COLORSET_MEDIUM,
- .name = "medium",
+ .name = colors_config_items[CONFIG_COLORS_MEDIUM].name,
},
{
.colorset = HE_COLORSET_NORMAL,
- .name = "normal",
+ .name = colors_config_items[CONFIG_COLORS_NORMAL].name,
},
{
.colorset = HE_COLORSET_SELECTED,
- .name = "selected",
+ .name =
colors_config_items[CONFIG_COLORS_SELECTED].name,
},
{
.colorset = HE_COLORSET_JUMP_ARROWS,
- .name = "jump_arrows",
+ .name =
colors_config_items[CONFIG_COLORS_JUMP_ARROWS].name,
},
{
.colorset = HE_COLORSET_ADDR,
- .name = "addr",
+ .name = colors_config_items[CONFIG_COLORS_ADDR].name,
},
{
.colorset = HE_COLORSET_ROOT,
- .name = "root",
+ .name = colors_config_items[CONFIG_COLORS_ROOT].name,
},
{
.name = NULL,

If you give me your opinion or other way, I'd appreciate it. :)


Thanks,
Taeung

>
>> Cc: Namhyung Kim <namhyung@kernel.org>
>> Cc: Masami Hiramatsu <mhiramat@kernel.org>
>> Cc: Jiri Olsa <jolsa@kernel.org>
>> Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
>> ---
>> tools/perf/util/config.c | 150 ++++++++++++++++++++++++++++++++++++++++++++++-
>> tools/perf/util/config.h | 46 ++++++++++++++-
>> 2 files changed, 194 insertions(+), 2 deletions(-)
>>
>> diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
>> index dad7d82..3a72ed7 100644
>> --- a/tools/perf/util/config.c
>> +++ b/tools/perf/util/config.c
>> @@ -29,6 +29,154 @@ static int config_file_eof;
>>
>> const char *config_exclusive_filename;
>>
>> +const struct perf_config_section default_sections[] = {
>> + { .name = "colors" },
>> + { .name = "tui" },
>> + { .name = "buildid" },
>> + { .name = "annotate" },
>> + { .name = "gtk" },
>> + { .name = "pager" },
>> + { .name = "help" },
>> + { .name = "hist" },
>> + { .name = "ui" },
>> + { .name = "call-graph" },
>> + { .name = "report" },
>> + { .name = "top" },
>> + { .name = "man" },
>> + { .name = "kmem" },
>> + { .name = "intel-pt" },
>> + { .name = "convert" },
>> +};
>> +
>> +const struct default_config_item colors_config_items[] = {
>> + CONF_STR_VAR("top", "red, default"),
>> + CONF_STR_VAR("medium", "green, default"),
>> + CONF_STR_VAR("normal", "default, default"),
>> + CONF_STR_VAR("selected", "black, yellow"),
>> + CONF_STR_VAR("jump_arrows", "blue, default"),
>> + CONF_STR_VAR("addr", "magenta, default"),
>> + CONF_STR_VAR("root", "white, blue"),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item tui_config_items[] = {
>> + CONF_BOOL_VAR("report", true),
>> + CONF_BOOL_VAR("annotate", true),
>> + CONF_BOOL_VAR("top", true),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item buildid_config_items[] = {
>> + CONF_STR_VAR("dir", "~/.debug"),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item annotate_config_items[] = {
>> + CONF_BOOL_VAR("hide_src_code", false),
>> + CONF_BOOL_VAR("use_offset", true),
>> + CONF_BOOL_VAR("jump_arrows", true),
>> + CONF_BOOL_VAR("show_nr_jumps", false),
>> + CONF_BOOL_VAR("show_linenr", false),
>> + CONF_BOOL_VAR("show_total_period", false),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item gtk_config_items[] = {
>> + CONF_BOOL_VAR("annotate", false),
>> + CONF_BOOL_VAR("report", false),
>> + CONF_BOOL_VAR("top", false),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item pager_config_items[] = {
>> + CONF_BOOL_VAR("cmd", true),
>> + CONF_BOOL_VAR("report", true),
>> + CONF_BOOL_VAR("annotate", true),
>> + CONF_BOOL_VAR("top", true),
>> + CONF_BOOL_VAR("diff", true),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item help_config_items[] = {
>> + CONF_STR_VAR("format", "man"),
>> + CONF_INT_VAR("autocorrect", 0),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item hist_config_items[] = {
>> + CONF_STR_VAR("percentage", "absolute"),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item ui_config_items[] = {
>> + CONF_BOOL_VAR("show-headers", true),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item call_graph_config_items[] = {
>> + CONF_STR_VAR("record-mode", "fp"),
>> + CONF_LONG_VAR("dump-size", 8192),
>> + CONF_STR_VAR("print-type", "graph"),
>> + CONF_STR_VAR("order", "callee"),
>> + CONF_STR_VAR("sort-key", "function"),
>> + CONF_DOUBLE_VAR("threshold", 0.5),
>> + CONF_LONG_VAR("print-limit", 0),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item report_config_items[] = {
>> + CONF_BOOL_VAR("group", true),
>> + CONF_BOOL_VAR("children", true),
>> + CONF_FLOAT_VAR("percent-limit", 0),
>> + CONF_U64_VAR("queue-size", 0),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item top_config_items[] = {
>> + CONF_BOOL_VAR("children", true),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item man_config_items[] = {
>> + CONF_STR_VAR("viewer", "man"),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item kmem_config_items[] = {
>> + CONF_STR_VAR("default", "slab"),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item intel_pt_config_items[] = {
>> + CONF_INT_VAR("cache-divisor", 64),
>> + CONF_BOOL_VAR("mispred-all", false),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item convert_config_items[] = {
>> + CONF_U64_VAR("queue-size", 0),
>> + CONF_END()
>> +};
>> +
>> +const struct default_config_item *default_config_items[] = {
>> + colors_config_items,
>> + tui_config_items,
>> + buildid_config_items,
>> + annotate_config_items,
>> + gtk_config_items,
>> + pager_config_items,
>> + help_config_items,
>> + hist_config_items,
>> + ui_config_items,
>> + call_graph_config_items,
>> + report_config_items,
>> + top_config_items,
>> + man_config_items,
>> + kmem_config_items,
>> + intel_pt_config_items,
>> + convert_config_items,
>> +};
>> +
>> static int get_next_char(void)
>> {
>> int c;
>> @@ -677,7 +825,7 @@ static void perf_config_section__purge(struct perf_config_section *section)
>> static void perf_config_section__delete(struct perf_config_section *section)
>> {
>> perf_config_section__purge(section);
>> - zfree(&section->name);
>> + zfree((char **)&section->name);
>> free(section);
>> }
>>
>> diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
>> index 22ec626..84414af 100644
>> --- a/tools/perf/util/config.h
>> +++ b/tools/perf/util/config.h
>> @@ -4,6 +4,30 @@
>> #include <stdbool.h>
>> #include <linux/list.h>
>>
>> +enum perf_config_type {
>> + CONFIG_TYPE_BOOL,
>> + CONFIG_TYPE_INT,
>> + CONFIG_TYPE_LONG,
>> + CONFIG_TYPE_U64,
>> + CONFIG_TYPE_FLOAT,
>> + CONFIG_TYPE_DOUBLE,
>> + CONFIG_TYPE_STRING
>> +};
>> +
>> +struct default_config_item {
>> + const char *name;
>> + union {
>> + bool b;
>> + int i;
>> + u32 l;
>> + u64 ll;
>> + float f;
>> + double d;
>> + const char *s;
>> + } value;
>> + enum perf_config_type type;
>> +};
>> +
>> struct perf_config_item {
>> char *name;
>> char *value;
>> @@ -11,7 +35,7 @@ struct perf_config_item {
>> };
>>
>> struct perf_config_section {
>> - char *name;
>> + const char *name;
>> struct list_head items;
>> struct list_head node;
>> };
>> @@ -20,6 +44,26 @@ struct perf_config_set {
>> struct list_head sections;
>> };
>>
>> +#define CONF_VAR(_name, _field, _val, _type) \
>> + { .name = _name, .value._field = _val, .type = _type }
>> +
>> +#define CONF_BOOL_VAR(_name, _val) \
>> + CONF_VAR(_name, b, _val, CONFIG_TYPE_BOOL)
>> +#define CONF_INT_VAR(_name, _val) \
>> + CONF_VAR(_name, i, _val, CONFIG_TYPE_INT)
>> +#define CONF_LONG_VAR(_name, _val) \
>> + CONF_VAR(_name, l, _val, CONFIG_TYPE_LONG)
>> +#define CONF_U64_VAR(_name, _val) \
>> + CONF_VAR(_name, ll, _val, CONFIG_TYPE_U64)
>> +#define CONF_FLOAT_VAR(_name, _val) \
>> + CONF_VAR(_name, f, _val, CONFIG_TYPE_FLOAT)
>> +#define CONF_DOUBLE_VAR(_name, _val) \
>> + CONF_VAR(_name, d, _val, CONFIG_TYPE_DOUBLE)
>> +#define CONF_STR_VAR(_name, _val) \
>> + CONF_VAR(_name, s, _val, CONFIG_TYPE_STRING)
>> +#define CONF_END() \
>> + { .name = NULL }
>> +
>> struct perf_config_set *perf_config_set__new(void);
>> void perf_config_set__delete(struct perf_config_set *set);
>>
>> --
>> 2.5.0

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