406 lines
12 KiB
Plaintext
406 lines
12 KiB
Plaintext
|
|
%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"
|
|
#include "evsel.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 str(yyscan_t scanner, int token)
|
|
{
|
|
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
|
char *text = parse_events_get_text(scanner);
|
|
|
|
if (text[0] != '\'') {
|
|
yylval->str = strdup(text);
|
|
} else {
|
|
/*
|
|
* If a text tag specified on the command line
|
|
* contains opening single quite ' then it is
|
|
* expected that the tag ends with single quote
|
|
* as well, like this:
|
|
* name=\'CPU_CLK_UNHALTED.THREAD:cmask=1\'
|
|
* quotes need to be escaped to bypass shell
|
|
* processing.
|
|
*/
|
|
yylval->str = strndup(&text[1], strlen(text) - 2);
|
|
}
|
|
|
|
return token;
|
|
}
|
|
|
|
static int raw(yyscan_t scanner)
|
|
{
|
|
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
|
char *text = parse_events_get_text(scanner);
|
|
|
|
if (perf_pmu__parse_check(text) == PMU_EVENT_SYMBOL)
|
|
return str(scanner, PE_NAME);
|
|
|
|
return __value(yylval, text + 1, 16, PE_RAW);
|
|
}
|
|
|
|
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, struct parse_events_state *parse_state)
|
|
{
|
|
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
|
char *text = parse_events_get_text(scanner);
|
|
|
|
yylval->str = strdup(text);
|
|
|
|
if (parse_state->fake_pmu)
|
|
return PE_PMU_EVENT_FAKE;
|
|
|
|
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 tool(yyscan_t scanner, enum perf_tool_event event)
|
|
{
|
|
YYSTYPE *yylval = parse_events_get_lval(scanner);
|
|
|
|
yylval->num = event;
|
|
return PE_VALUE_SYM_TOOL;
|
|
}
|
|
|
|
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_tag [\'][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 [ukhpPGHSDIWeb]+
|
|
modifier_bp [rwx]{1,3}
|
|
|
|
%%
|
|
|
|
%{
|
|
struct parse_events_state *_parse_state = parse_events_get_extra(yyscanner);
|
|
|
|
{
|
|
int start_token = _parse_state->stoken;
|
|
|
|
if (start_token == PE_START_TERMS)
|
|
BEGIN(config);
|
|
else if (start_token == PE_START_EVENTS)
|
|
BEGIN(event);
|
|
|
|
if (start_token) {
|
|
_parse_state->stoken = 0;
|
|
/*
|
|
* 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);
|
|
}
|
|
, {
|
|
return ',';
|
|
}
|
|
}
|
|
|
|
<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); }
|
|
nr { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_MAX_EVENTS); }
|
|
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); }
|
|
percore { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_PERCORE); }
|
|
aux-output { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT); }
|
|
aux-sample-size { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE); }
|
|
r{num_raw_hex} { return raw(yyscanner); }
|
|
r0x{num_raw_hex} { return raw(yyscanner); }
|
|
, { 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); }
|
|
duration_time { return tool(yyscanner, PERF_TOOL_DURATION_TIME); }
|
|
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 |
|
|
cycles-t |
|
|
mem-loads |
|
|
mem-loads-aux |
|
|
mem-stores |
|
|
topdown-[a-z-]+ |
|
|
tx-capacity-[a-z-]+ |
|
|
el-capacity-[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, _parse_state); }
|
|
{name_tag} { 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;
|
|
}
|