[deliverable/linux.git] / tools / perf / util / parse-events.l


%option reentrant
%option bison-bridge
%option prefix="parse_events_"
%option stack

%{
#include <errno.h>
#include "../perf.h"
#include "parse-events-bison.h"
#include "parse-events.h"

char *parse_events_get_text(yyscan_t yyscanner);
YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);

static int __value(YYSTYPE *yylval, char *str, int base, int token)
{
	u64 num;

	errno = 0;
	num = strtoull(str, NULL, base);
	if (errno)
		return PE_ERROR;

	yylval->num = num;
	return token;
}

static int value(yyscan_t scanner, int base)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);
	char *text = parse_events_get_text(scanner);

	return __value(yylval, text, base, PE_VALUE);
}

static int raw(yyscan_t scanner)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);
	char *text = parse_events_get_text(scanner);

	return __value(yylval, text + 1, 16, PE_RAW);
}

static int str(yyscan_t scanner, int token)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);
	char *text = parse_events_get_text(scanner);

	yylval->str = strdup(text);
	return token;
}

static int sym(yyscan_t scanner, int type, int config)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);

	yylval->num = (type << 16) + config;
	return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
}

static int term(yyscan_t scanner, int type)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);

	yylval->num = type;
	return PE_TERM;
}

%}

%x mem
%s config
%x event

group		[^,{}/]*[{][^}]*[}][^,{}/]*
event_pmu	[^,{}/]+[/][^/]*[/][^,{}/]*
event		[^,{}/]+

num_dec		[0-9]+
num_hex		0x[a-fA-F0-9]+
num_raw_hex	[a-fA-F0-9]+
name		[a-zA-Z_*?][a-zA-Z0-9_*?]*
name_minus	[a-zA-Z_*?][a-zA-Z0-9\-_*?]*
/* If you add a modifier you need to update check_modifier() */
modifier_event	[ukhpGHSD]+
modifier_bp	[rwx]{1,3}

%%

%{
	{
		int start_token;

		start_token = parse_events_get_extra(yyscanner);

		if (start_token == PE_START_TERMS)
			BEGIN(config);
		else if (start_token == PE_START_EVENTS)
			BEGIN(event);

		if (start_token) {
			parse_events_set_extra(NULL, yyscanner);
			return start_token;
		}
         }
%}

<event>{

{group}		{
			BEGIN(INITIAL); yyless(0);
		}

{event_pmu}	|
{event}		{
			str(yyscanner, PE_EVENT_NAME);
			BEGIN(INITIAL); yyless(0);
			return PE_EVENT_NAME;
		}

.		|
<<EOF>>		{
			BEGIN(INITIAL); yyless(0);
		}

}

<config>{
config			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
config1			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
config2			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
name			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
period			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
,			{ return ','; }
"/"			{ BEGIN(INITIAL); return '/'; }
{name_minus}		{ return str(yyscanner, PE_NAME); }
}

<mem>{
{modifier_bp}		{ return str(yyscanner, PE_MODIFIER_BP); }
:			{ return ':'; }
{num_dec}		{ return value(yyscanner, 10); }
{num_hex}		{ return value(yyscanner, 16); }
	/*
	 * We need to separate 'mem:' scanner part, in order to get specific
	 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
	 * and we'd need to parse it manually. During the escape from <mem>
	 * state we need to put the escaping char back, so we dont miss it.
	 */
.			{ unput(*yytext); BEGIN(INITIAL); }
	/*
	 * We destroy the scanner after reaching EOF,
	 * but anyway just to be sure get back to INIT state.
	 */
<<EOF>>			{ BEGIN(INITIAL); }
}

cpu-cycles|cycles				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
stalled-cycles-frontend|idle-cycles-frontend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
stalled-cycles-backend|idle-cycles-backend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
instructions					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
cache-references				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
cache-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
branch-instructions|branches			{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
branch-misses					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
bus-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
ref-cycles					{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
cpu-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
task-clock					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
page-faults|faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
minor-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
major-faults					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
context-switches|cs				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
cpu-migrations|migrations			{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
alignment-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
emulation-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
dummy						{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }

L1-dcache|l1-d|l1d|L1-data		|
L1-icache|l1-i|l1i|L1-instruction	|
LLC|L2					|
dTLB|d-tlb|Data-TLB			|
iTLB|i-tlb|Instruction-TLB		|
branch|branches|bpu|btb|bpc		|
node					{ return str(yyscanner, PE_NAME_CACHE_TYPE); }

load|loads|read				|
store|stores|write			|
prefetch|prefetches			|
speculative-read|speculative-load	|
refs|Reference|ops|access		|
misses|miss				{ return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }

mem:			{ BEGIN(mem); return PE_PREFIX_MEM; }
r{num_raw_hex}		{ return raw(yyscanner); }
{num_dec}		{ return value(yyscanner, 10); }
{num_hex}		{ return value(yyscanner, 16); }

{modifier_event}	{ return str(yyscanner, PE_MODIFIER_EVENT); }
{name}			{ return str(yyscanner, PE_NAME); }
"/"			{ BEGIN(config); return '/'; }
-			{ return '-'; }
,			{ BEGIN(event); return ','; }
:			{ return ':'; }
"{"			{ BEGIN(event); return '{'; }
"}"			{ return '}'; }
=			{ return '='; }
\n			{ }
.			{ }

%%

int parse_events_wrap(void *scanner __maybe_unused)
{
	return 1;
}
Commit	Line	Data
89812fc8	1
ac20de6f ZY	2	%option reentrant
ac20de6f ZY	3	%option bison-bridge
89812fc8	4	%option prefix="parse_events_"
08d2f762	5	%option stack
89812fc8 JO	6
	7	%{
	8	#include <errno.h>
	9	#include "../perf.h"
	10	#include "parse-events-bison.h"
8f707d84	11	#include "parse-events.h"
89812fc8	12
ac20de6f ZY	13	char *parse_events_get_text(yyscan_t yyscanner);
	14	YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
	15
	16	static int __value(YYSTYPE yylval, char str, int base, int token)
89812fc8	17	{
b527bab5	18	u64 num;
89812fc8 JO	19
89812fc8 JO	20	errno = 0;
b527bab5	21	num = strtoull(str, NULL, base);
89812fc8 JO	22	if (errno)
	23	return PE_ERROR;
	24
ac20de6f	25	yylval->num = num;
89812fc8 JO	26	return token;
	27	}
	28
ac20de6f	29	static int value(yyscan_t scanner, int base)
89812fc8	30	{
ac20de6f ZY	31	YYSTYPE *yylval = parse_events_get_lval(scanner);
	32	char *text = parse_events_get_text(scanner);
	33
	34	return __value(yylval, text, base, PE_VALUE);
89812fc8 JO	35	}
89812fc8 JO	36
ac20de6f	37	static int raw(yyscan_t scanner)
89812fc8	38	{
ac20de6f ZY	39	YYSTYPE *yylval = parse_events_get_lval(scanner);
	40	char *text = parse_events_get_text(scanner);
	41
	42	return __value(yylval, text + 1, 16, PE_RAW);
89812fc8 JO	43	}
89812fc8 JO	44
ac20de6f	45	static int str(yyscan_t scanner, int token)
89812fc8	46	{
ac20de6f ZY	47	YYSTYPE *yylval = parse_events_get_lval(scanner);
	48	char *text = parse_events_get_text(scanner);
	49
	50	yylval->str = strdup(text);
89812fc8 JO	51	return token;
	52	}
	53
ac20de6f	54	static int sym(yyscan_t scanner, int type, int config)
89812fc8	55	{
ac20de6f ZY	56	YYSTYPE *yylval = parse_events_get_lval(scanner);
	57
	58	yylval->num = (type << 16) + config;
cf3506dc	59	return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
89812fc8 JO	60	}
89812fc8 JO	61
ac20de6f	62	static int term(yyscan_t scanner, int type)
8f707d84	63	{
ac20de6f ZY	64	YYSTYPE *yylval = parse_events_get_lval(scanner);
	65
	66	yylval->num = type;
8f707d84 JO	67	return PE_TERM;
	68	}
	69
89812fc8 JO	70	%}
89812fc8 JO	71
08d2f762	72	%x mem
ac2ba9f3 RR	73	%s config
	74	%x event
	75
	76	group [^,{}/][{][^}][}][^,{}/]*
	77	event_pmu [^,{}/]+[/][^/][/][^,{}/]
	78	event [^,{}/]+
08d2f762	79
89812fc8 JO	80	num_dec [0-9]+
	81	num_hex 0x[a-fA-F0-9]+
	82	num_raw_hex [a-fA-F0-9]+
	83	name [a-zA-Z_?][a-zA-Z0-9_?]*
eef9ba98	84	name_minus [a-zA-Z_?][a-zA-Z0-9\-_?]*
e9a7c414 ME	85	/* If you add a modifier you need to update check_modifier() */
e9a7c414 ME	86	modifier_event [ukhpGHSD]+
7582732f	87	modifier_bp [rwx]{1,3}
89812fc8 JO	88
89812fc8 JO	89	%%
90e2b22d JO	90
	91	%{
	92	{
	93	int start_token;
	94
ac2ba9f3 RR	95	start_token = parse_events_get_extra(yyscanner);
	96
	97	if (start_token == PE_START_TERMS)
	98	BEGIN(config);
	99	else if (start_token == PE_START_EVENTS)
	100	BEGIN(event);
	101
90e2b22d JO	102	if (start_token) {
	103	parse_events_set_extra(NULL, yyscanner);
	104	return start_token;
	105	}
	106	}
	107	%}
	108
ac2ba9f3 RR	109	<event>{
	110
	111	{group} {
	112	BEGIN(INITIAL); yyless(0);
	113	}
	114
	115	{event_pmu} \|
	116	{event} {
	117	str(yyscanner, PE_EVENT_NAME);
	118	BEGIN(INITIAL); yyless(0);
	119	return PE_EVENT_NAME;
	120	}
	121
	122	. \|
	123	<<EOF>> {
	124	BEGIN(INITIAL); yyless(0);
	125	}
	126
	127	}
	128
82004223 JO	129	<config>{
	130	config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
	131	config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
	132	config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
	133	name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
	134	period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
	135	branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
	136	, { return ','; }
	137	"/" { BEGIN(INITIAL); return '/'; }
	138	{name_minus} { return str(yyscanner, PE_NAME); }
	139	}
	140
	141	<mem>{
	142	{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
	143	: { return ':'; }
	144	{num_dec} { return value(yyscanner, 10); }
	145	{num_hex} { return value(yyscanner, 16); }
	146	/*
	147	* We need to separate 'mem:' scanner part, in order to get specific
	148	* modifier bits parsed out. Otherwise we would need to handle PE_NAME
	149	* and we'd need to parse it manually. During the escape from <mem>
	150	* state we need to put the escaping char back, so we dont miss it.
	151	*/
	152	. { unput(*yytext); BEGIN(INITIAL); }
	153	/*
	154	* We destroy the scanner after reaching EOF,
	155	* but anyway just to be sure get back to INIT state.
	156	*/
	157	<<EOF>> { BEGIN(INITIAL); }
	158	}
	159
ac20de6f ZY	160	cpu-cycles\|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
	161	stalled-cycles-frontend\|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
	162	stalled-cycles-backend\|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
	163	instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
	164	cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
	165	cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
	166	branch-instructions\|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
	167	branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
	168	bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
	169	ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
	170	cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
	171	task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
	172	page-faults\|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
	173	minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
	174	major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
	175	context-switches\|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
	176	cpu-migrations\|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
	177	alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
	178	emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
d22d1a2a	179	dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
89812fc8 JO	180
	181	L1-dcache\|l1-d\|l1d\|L1-data \|
	182	L1-icache\|l1-i\|l1i\|L1-instruction \|
	183	LLC\|L2 \|
	184	dTLB\|d-tlb\|Data-TLB \|
	185	iTLB\|i-tlb\|Instruction-TLB \|
	186	branch\|branches\|bpu\|btb\|bpc \|
ac20de6f	187	node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
89812fc8 JO	188
	189	load\|loads\|read \|
	190	store\|stores\|write \|
	191	prefetch\|prefetches \|
	192	speculative-read\|speculative-load \|
	193	refs\|Reference\|ops\|access \|
ac20de6f	194	misses\|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
89812fc8	195
08d2f762	196	mem: { BEGIN(mem); return PE_PREFIX_MEM; }
ac20de6f ZY	197	r{num_raw_hex} { return raw(yyscanner); }
	198	{num_dec} { return value(yyscanner, 10); }
	199	{num_hex} { return value(yyscanner, 16); }
89812fc8	200
ac20de6f ZY	201	{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
ac20de6f ZY	202	{name} { return str(yyscanner, PE_NAME); }
ac2ba9f3	203	"/" { BEGIN(config); return '/'; }
89812fc8	204	- { return '-'; }
ac2ba9f3	205	, { BEGIN(event); return ','; }
89812fc8	206	: { return ':'; }
ac2ba9f3	207	"{" { BEGIN(event); return '{'; }
89efb029	208	"}" { return '}'; }
89812fc8	209	= { return '='; }
8c5f0a84	210	\n { }
82004223	211	. { }
08d2f762	212
89812fc8 JO	213	%%
89812fc8 JO	214
1d037ca1	215	int parse_events_wrap(void *scanner __maybe_unused)
89812fc8 JO	216	{
	217	return 1;
	218	}