[people/arne_f/kernel.git] / tools / perf / util / parse-events.l


%option reentrant
%option bison-bridge
%option prefix="parse_events_"
%option stack
%option bison-locations
%option yylineno
%option reject

%{
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "../perf.h"
#include "parse-events.h"
#include "parse-events-bison.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 bool isbpf_suffix(char *text)
{
	int len = strlen(text);

	if (len < 2)
		return false;
	if ((text[len - 1] == 'c' || text[len - 1] == 'o') &&
	    text[len - 2] == '.')
		return true;
	if (len > 4 && !strcmp(text + len - 4, ".obj"))
		return true;
	return false;
}

static bool isbpf(yyscan_t scanner)
{
	char *text = parse_events_get_text(scanner);
	struct stat st;

	if (!isbpf_suffix(text))
		return false;

	return stat(text, &st) == 0;
}

/*
 * This function is called when the parser gets two kind of input:
 *
 * 	@cfg1 or @cfg2=config
 *
 * The leading '@' is stripped off before 'cfg1' and 'cfg2=config' are given to
 * bison.  In the latter case it is necessary to keep the string intact so that
 * the PMU kernel driver can determine what configurable is associated to
 * 'config'.
 */
static int drv_str(yyscan_t scanner, int token)
{
	YYSTYPE *yylval = parse_events_get_lval(scanner);
	char *text = parse_events_get_text(scanner);

	/* Strip off the '@' */
	yylval->str = strdup(text + 1);
	return token;
}

#define REWIND(__alloc)				\
do {								\
	YYSTYPE *__yylval = parse_events_get_lval(yyscanner);	\
	char *text = parse_events_get_text(yyscanner);		\
								\
	if (__alloc)						\
		__yylval->str = strdup(text);			\
								\
	yycolumn -= strlen(text);				\
	yyless(0);						\
} while (0)

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

	yylval->str = strdup(text);
	switch (perf_pmu__parse_check(text)) {
		case PMU_EVENT_SYMBOL_PREFIX:
			return PE_PMU_EVENT_PRE;
		case PMU_EVENT_SYMBOL_SUFFIX:
			return PE_PMU_EVENT_SUF;
		case PMU_EVENT_SYMBOL:
			return PE_KERNEL_PMU_EVENT;
		default:
			return PE_NAME;
	}
}

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;
}

#define YY_USER_ACTION					\
do {							\
	yylloc->last_column  = yylloc->first_column;	\
	yylloc->first_column = yycolumn;		\
	yycolumn += yyleng;				\
} while (0);

#define USER_REJECT		\
	yycolumn -= yyleng;	\
	REJECT

%}

%x mem
%s config
%x event
%x array

group		[^,{}/]*[{][^}]*[}][^,{}/]*
event_pmu	[^,{}/]+[/][^/]*[/][^,{}/]*
event		[^,{}/]+
bpf_object	[^,{}]+\.(o|bpf)[a-zA-Z0-9._]*
bpf_source	[^,{}]+\.c[a-zA-Z0-9._]*

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\-_*?.:]*
drv_cfg_term	[a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
/* If you add a modifier you need to update check_modifier() */
modifier_event	[ukhpPGHSDI]+
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);
			/*
			 * The flex parser does not init locations variable
			 * via the scan_string interface, so we need do the
			 * init in here.
			 */
			yycolumn = 0;
			return start_token;
		}
         }
%}

<event>{

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

{event_pmu}	|
{bpf_object}	|
{bpf_source}	|
{event}		{
			BEGIN(INITIAL);
			REWIND(1);
			return PE_EVENT_NAME;
		}

<<EOF>>		{
			BEGIN(INITIAL);
			REWIND(0);
		}

}

<array>{
"]"			{ BEGIN(config); return ']'; }
{num_dec}		{ return value(yyscanner, 10); }
{num_hex}		{ return value(yyscanner, 16); }
,			{ return ','; }
"\.\.\."		{ return PE_ARRAY_RANGE; }
}

<config>{
	/*
	 * Please update config_term_names when new static term is added.
	 */
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); }
freq			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
time			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
call-graph		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
stack-size		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
max-stack		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_STACK); }
inherit			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
no-inherit		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
no-overwrite		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
,			{ return ','; }
"/"			{ BEGIN(INITIAL); return '/'; }
{name_minus}		{ return str(yyscanner, PE_NAME); }
\[all\]			{ return PE_ARRAY_ALL; }
"["			{ BEGIN(array); return '['; }
@{drv_cfg_term}		{ return drv_str(yyscanner, PE_DRV_CFG_TERM); }
}

<mem>{
{modifier_bp}		{ return str(yyscanner, PE_MODIFIER_BP); }
:			{ return ':'; }
"/"			{ 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); }
bpf-output					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }

	/*
	 * We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
	 * Because the prefix cycles is mixed up with cpu-cycles.
	 * loads and stores are mixed up with cache event
	 */
cycles-ct					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
cycles-t					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
mem-loads					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
mem-stores					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }
topdown-[a-z-]+					{ return str(yyscanner, PE_KERNEL_PMU_EVENT); }

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); }
{bpf_object}		{ if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_OBJECT); }
{bpf_source}		{ if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_SOURCE); }
{name}			{ return pmu_str_check(yyscanner); }
"/"			{ 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
6297d423 JO	6	%option bison-locations
6297d423 JO	7	%option yylineno
b6af53b7	8	%option reject
89812fc8 JO	9
	10	%{
	11	#include <errno.h>
29479bfe JO	12	#include <sys/types.h>
	13	#include <sys/stat.h>
	14	#include <unistd.h>
89812fc8	15	#include "../perf.h"
8f707d84	16	#include "parse-events.h"
e571e029	17	#include "parse-events-bison.h"
89812fc8	18
ac20de6f ZY	19	char *parse_events_get_text(yyscan_t yyscanner);
	20	YYSTYPE *parse_events_get_lval(yyscan_t yyscanner);
	21
	22	static int __value(YYSTYPE yylval, char str, int base, int token)
89812fc8	23	{
b527bab5	24	u64 num;
89812fc8 JO	25
89812fc8 JO	26	errno = 0;
b527bab5	27	num = strtoull(str, NULL, base);
89812fc8 JO	28	if (errno)
	29	return PE_ERROR;
	30
ac20de6f	31	yylval->num = num;
89812fc8 JO	32	return token;
	33	}
	34
ac20de6f	35	static int value(yyscan_t scanner, int base)
89812fc8	36	{
ac20de6f ZY	37	YYSTYPE *yylval = parse_events_get_lval(scanner);
	38	char *text = parse_events_get_text(scanner);
	39
	40	return __value(yylval, text, base, PE_VALUE);
89812fc8 JO	41	}
89812fc8 JO	42
ac20de6f	43	static int raw(yyscan_t scanner)
89812fc8	44	{
ac20de6f ZY	45	YYSTYPE *yylval = parse_events_get_lval(scanner);
	46	char *text = parse_events_get_text(scanner);
	47
	48	return __value(yylval, text + 1, 16, PE_RAW);
89812fc8 JO	49	}
89812fc8 JO	50
ac20de6f	51	static int str(yyscan_t scanner, int token)
89812fc8	52	{
ac20de6f ZY	53	YYSTYPE *yylval = parse_events_get_lval(scanner);
	54	char *text = parse_events_get_text(scanner);
	55
	56	yylval->str = strdup(text);
89812fc8 JO	57	return token;
	58	}
	59
29479bfe	60	static bool isbpf_suffix(char *text)
77d0871c	61	{
77d0871c AK	62	int len = strlen(text);
	63
	64	if (len < 2)
	65	return false;
	66	if ((text[len - 1] == 'c' \|\| text[len - 1] == 'o') &&
	67	text[len - 2] == '.')
	68	return true;
	69	if (len > 4 && !strcmp(text + len - 4, ".obj"))
	70	return true;
	71	return false;
	72	}
	73
29479bfe JO	74	static bool isbpf(yyscan_t scanner)
	75	{
	76	char *text = parse_events_get_text(scanner);
	77	struct stat st;
	78
	79	if (!isbpf_suffix(text))
	80	return false;
	81
	82	return stat(text, &st) == 0;
	83	}
	84
dd60fba7 MP	85	/*
	86	* This function is called when the parser gets two kind of input:
	87	*
	88	* @cfg1 or @cfg2=config
	89	*
	90	* The leading '@' is stripped off before 'cfg1' and 'cfg2=config' are given to
	91	* bison. In the latter case it is necessary to keep the string intact so that
	92	* the PMU kernel driver can determine what configurable is associated to
	93	* 'config'.
	94	*/
	95	static int drv_str(yyscan_t scanner, int token)
	96	{
	97	YYSTYPE *yylval = parse_events_get_lval(scanner);
	98	char *text = parse_events_get_text(scanner);
	99
	100	/* Strip off the '@' */
	101	yylval->str = strdup(text + 1);
	102	return token;
	103	}
	104
6297d423 JO	105	#define REWIND(__alloc) \
	106	do { \
	107	YYSTYPE *__yylval = parse_events_get_lval(yyscanner); \
	108	char *text = parse_events_get_text(yyscanner); \
	109	\
	110	if (__alloc) \
	111	__yylval->str = strdup(text); \
	112	\
	113	yycolumn -= strlen(text); \
	114	yyless(0); \
	115	} while (0)
	116
ba32a451 KL	117	static int pmu_str_check(yyscan_t scanner)
	118	{
	119	YYSTYPE *yylval = parse_events_get_lval(scanner);
	120	char *text = parse_events_get_text(scanner);
	121
	122	yylval->str = strdup(text);
	123	switch (perf_pmu__parse_check(text)) {
	124	case PMU_EVENT_SYMBOL_PREFIX:
	125	return PE_PMU_EVENT_PRE;
	126	case PMU_EVENT_SYMBOL_SUFFIX:
	127	return PE_PMU_EVENT_SUF;
	128	case PMU_EVENT_SYMBOL:
	129	return PE_KERNEL_PMU_EVENT;
	130	default:
	131	return PE_NAME;
	132	}
	133	}
	134
ac20de6f	135	static int sym(yyscan_t scanner, int type, int config)
89812fc8	136	{
ac20de6f ZY	137	YYSTYPE *yylval = parse_events_get_lval(scanner);
	138
	139	yylval->num = (type << 16) + config;
cf3506dc	140	return type == PERF_TYPE_HARDWARE ? PE_VALUE_SYM_HW : PE_VALUE_SYM_SW;
89812fc8 JO	141	}
89812fc8 JO	142
ac20de6f	143	static int term(yyscan_t scanner, int type)
8f707d84	144	{
ac20de6f ZY	145	YYSTYPE *yylval = parse_events_get_lval(scanner);
	146
	147	yylval->num = type;
8f707d84 JO	148	return PE_TERM;
	149	}
	150
6297d423 JO	151	#define YY_USER_ACTION \
	152	do { \
	153	yylloc->last_column = yylloc->first_column; \
	154	yylloc->first_column = yycolumn; \
	155	yycolumn += yyleng; \
	156	} while (0);
	157
9445464b JO	158	#define USER_REJECT \
	159	yycolumn -= yyleng; \
	160	REJECT
	161
89812fc8 JO	162	%}
89812fc8 JO	163
08d2f762	164	%x mem
ac2ba9f3 RR	165	%s config
ac2ba9f3 RR	166	%x event
e571e029	167	%x array
ac2ba9f3 RR	168
	169	group [^,{}/][{][^}][}][^,{}/]*
	170	event_pmu [^,{}/]+[/][^/][/][^,{}/]
	171	event [^,{}/]+
77d0871c AK	172	bpf_object [^,{}]+\.(o\|bpf)[a-zA-Z0-9._]*
77d0871c AK	173	bpf_source [^,{}]+\.c[a-zA-Z0-9._]*
08d2f762	174
89812fc8 JO	175	num_dec [0-9]+
	176	num_hex 0x[a-fA-F0-9]+
	177	num_raw_hex [a-fA-F0-9]+
5b021ddf	178	name [a-zA-Z_?][a-zA-Z0-9_?.]*
a34f3be7	179	name_minus [a-zA-Z_?][a-zA-Z0-9\-_?.:]*
dd60fba7	180	drv_cfg_term [a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
e9a7c414	181	/* If you add a modifier you need to update check_modifier() */
7f94af7a	182	modifier_event [ukhpPGHSDI]+
7582732f	183	modifier_bp [rwx]{1,3}
89812fc8 JO	184
89812fc8 JO	185	%%
90e2b22d JO	186
	187	%{
	188	{
	189	int start_token;
	190
ac2ba9f3 RR	191	start_token = parse_events_get_extra(yyscanner);
	192
	193	if (start_token == PE_START_TERMS)
	194	BEGIN(config);
	195	else if (start_token == PE_START_EVENTS)
	196	BEGIN(event);
	197
90e2b22d JO	198	if (start_token) {
90e2b22d JO	199	parse_events_set_extra(NULL, yyscanner);
6297d423 JO	200	/*
	201	* The flex parser does not init locations variable
	202	* via the scan_string interface, so we need do the
	203	* init in here.
	204	*/
	205	yycolumn = 0;
90e2b22d JO	206	return start_token;
	207	}
	208	}
	209	%}
	210
ac2ba9f3 RR	211	<event>{
	212
	213	{group} {
6297d423 JO	214	BEGIN(INITIAL);
6297d423 JO	215	REWIND(0);
ac2ba9f3 RR	216	}
	217
	218	{event_pmu} \|
84c86ca1	219	{bpf_object} \|
d509db04	220	{bpf_source} \|
ac2ba9f3	221	{event} {
6297d423 JO	222	BEGIN(INITIAL);
6297d423 JO	223	REWIND(1);
ac2ba9f3 RR	224	return PE_EVENT_NAME;
	225	}
	226
ac2ba9f3	227	<<EOF>> {
6297d423 JO	228	BEGIN(INITIAL);
6297d423 JO	229	REWIND(0);
ac2ba9f3 RR	230	}
	231
	232	}
	233
e571e029 WN	234	<array>{
	235	"]" { BEGIN(config); return ']'; }
	236	{num_dec} { return value(yyscanner, 10); }
	237	{num_hex} { return value(yyscanner, 16); }
	238	, { return ','; }
	239	"\.\.\." { return PE_ARRAY_RANGE; }
	240	}
	241
82004223	242	<config>{
e64b020b	243	/*
17cb5f84	244	* Please update config_term_names when new static term is added.
e64b020b	245	*/
82004223 JO	246	config { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
	247	config1 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
	248	config2 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
	249	name { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
	250	period { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
09af2a55	251	freq { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ); }
82004223	252	branch_type { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
32067712	253	time { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_TIME); }
d457c963 KL	254	call-graph { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CALLGRAPH); }
d457c963 KL	255	stack-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_STACKSIZE); }
792d48b4	256	max-stack { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_STACK); }
374ce938 WN	257	inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_INHERIT); }
374ce938 WN	258	no-inherit { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOINHERIT); }
626a6b78 WN	259	overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_OVERWRITE); }
626a6b78 WN	260	no-overwrite { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NOOVERWRITE); }
82004223 JO	261	, { return ','; }
	262	"/" { BEGIN(INITIAL); return '/'; }
	263	{name_minus} { return str(yyscanner, PE_NAME); }
e571e029 WN	264	\[all\] { return PE_ARRAY_ALL; }
e571e029 WN	265	"[" { BEGIN(array); return '['; }
dd60fba7	266	@{drv_cfg_term} { return drv_str(yyscanner, PE_DRV_CFG_TERM); }
82004223 JO	267	}
	268
	269	<mem>{
	270	{modifier_bp} { return str(yyscanner, PE_MODIFIER_BP); }
	271	: { return ':'; }
3741eb9f	272	"/" { return '/'; }
82004223 JO	273	{num_dec} { return value(yyscanner, 10); }
	274	{num_hex} { return value(yyscanner, 16); }
	275	/*
	276	* We need to separate 'mem:' scanner part, in order to get specific
	277	* modifier bits parsed out. Otherwise we would need to handle PE_NAME
	278	* and we'd need to parse it manually. During the escape from <mem>
	279	* state we need to put the escaping char back, so we dont miss it.
	280	*/
	281	. { unput(*yytext); BEGIN(INITIAL); }
	282	/*
	283	* We destroy the scanner after reaching EOF,
	284	* but anyway just to be sure get back to INIT state.
	285	*/
	286	<<EOF>> { BEGIN(INITIAL); }
	287	}
	288
ac20de6f ZY	289	cpu-cycles\|cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
	290	stalled-cycles-frontend\|idle-cycles-frontend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
	291	stalled-cycles-backend\|idle-cycles-backend { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
	292	instructions { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS); }
	293	cache-references { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES); }
	294	cache-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES); }
	295	branch-instructions\|branches { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
	296	branch-misses { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES); }
	297	bus-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES); }
	298	ref-cycles { return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES); }
	299	cpu-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_CLOCK); }
	300	task-clock { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_TASK_CLOCK); }
	301	page-faults\|faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS); }
	302	minor-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN); }
	303	major-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ); }
	304	context-switches\|cs { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES); }
	305	cpu-migrations\|migrations { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS); }
	306	alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
	307	emulation-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
d22d1a2a	308	dummy { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
03e0a7df	309	bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
89812fc8	310
ba32a451 KL	311	/*
	312	* We have to handle the kernel PMU event cycles-ct/cycles-t/mem-loads/mem-stores separately.
	313	* Because the prefix cycles is mixed up with cpu-cycles.
	314	* loads and stores are mixed up with cache event
	315	*/
	316	cycles-ct { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
	317	cycles-t { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
	318	mem-loads { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
	319	mem-stores { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
44b1e60a	320	topdown-[a-z-]+ { return str(yyscanner, PE_KERNEL_PMU_EVENT); }
ba32a451	321
89812fc8 JO	322	L1-dcache\|l1-d\|l1d\|L1-data \|
	323	L1-icache\|l1-i\|l1i\|L1-instruction \|
	324	LLC\|L2 \|
	325	dTLB\|d-tlb\|Data-TLB \|
	326	iTLB\|i-tlb\|Instruction-TLB \|
	327	branch\|branches\|bpu\|btb\|bpc \|
ac20de6f	328	node { return str(yyscanner, PE_NAME_CACHE_TYPE); }
89812fc8 JO	329
	330	load\|loads\|read \|
	331	store\|stores\|write \|
	332	prefetch\|prefetches \|
	333	speculative-read\|speculative-load \|
	334	refs\|Reference\|ops\|access \|
ac20de6f	335	misses\|miss { return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
89812fc8	336
08d2f762	337	mem: { BEGIN(mem); return PE_PREFIX_MEM; }
ac20de6f ZY	338	r{num_raw_hex} { return raw(yyscanner); }
	339	{num_dec} { return value(yyscanner, 10); }
	340	{num_hex} { return value(yyscanner, 16); }
89812fc8	341
ac20de6f	342	{modifier_event} { return str(yyscanner, PE_MODIFIER_EVENT); }
a271bfaf JO	343	{bpf_object} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_OBJECT); }
a271bfaf JO	344	{bpf_source} { if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_SOURCE); }
ba32a451	345	{name} { return pmu_str_check(yyscanner); }
ac2ba9f3	346	"/" { BEGIN(config); return '/'; }
89812fc8	347	- { return '-'; }
ac2ba9f3	348	, { BEGIN(event); return ','; }
89812fc8	349	: { return ':'; }
ac2ba9f3	350	"{" { BEGIN(event); return '{'; }
89efb029	351	"}" { return '}'; }
89812fc8	352	= { return '='; }
8c5f0a84	353	\n { }
82004223	354	. { }
08d2f762	355
89812fc8 JO	356	%%
89812fc8 JO	357
1d037ca1	358	int parse_events_wrap(void *scanner __maybe_unused)
89812fc8 JO	359	{
	360	return 1;
	361	}