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Diffstat (limited to 'tools/perf/util/parse-events.l')
-rw-r--r--tools/perf/util/parse-events.l173
1 files changed, 65 insertions, 108 deletions
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 002802e17059..e86c45675e1d 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -12,7 +12,6 @@
#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"
@@ -41,14 +40,6 @@ static int value(yyscan_t scanner, int base)
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);
@@ -72,29 +63,9 @@ static int str(yyscan_t scanner, int token)
return token;
}
-static bool isbpf_suffix(char *text)
+static int lc_str(yyscan_t scanner, const struct parse_events_state *state)
{
- 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;
+ return str(scanner, state->match_legacy_cache_terms ? PE_LEGACY_CACHE : PE_NAME);
}
/*
@@ -129,24 +100,6 @@ do { \
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);
@@ -163,14 +116,24 @@ static int tool(yyscan_t scanner, enum perf_tool_event event)
return PE_VALUE_SYM_TOOL;
}
-static int term(yyscan_t scanner, int type)
+static int term(yyscan_t scanner, enum parse_events__term_type type)
{
YYSTYPE *yylval = parse_events_get_lval(scanner);
- yylval->num = type;
+ yylval->term_type = type;
return PE_TERM;
}
+static int hw_term(yyscan_t scanner, int config)
+{
+ YYSTYPE *yylval = parse_events_get_lval(scanner);
+ char *text = parse_events_get_text(scanner);
+
+ yylval->hardware_term.str = strdup(text);
+ yylval->hardware_term.num = PERF_TYPE_HARDWARE + config;
+ return PE_TERM_HW;
+}
+
#define YY_USER_ACTION \
do { \
yylloc->last_column = yylloc->first_column; \
@@ -187,30 +150,33 @@ do { \
%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_*?.\[\]]*
+num_hex 0x[a-fA-F0-9]{1,16}
+num_raw_hex [a-fA-F0-9]{1,16}
+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 [ukhpPGHSDIW]+
+/*
+ * If you add a modifier you need to update check_modifier().
+ * Also, the letters in modifier_event must not be in modifier_bp.
+ */
+modifier_event [ukhpPGHSDIWeb]+
modifier_bp [rwx]{1,3}
+lc_type (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)
+lc_op_result (load|loads|read|store|stores|write|prefetch|prefetches|speculative-read|speculative-load|refs|Reference|ops|access|misses|miss)
+digit [0-9]
+non_digit [^0-9]
%%
%{
struct parse_events_state *_parse_state = parse_events_get_extra(yyscanner);
-
{
int start_token = _parse_state->stoken;
@@ -240,8 +206,6 @@ modifier_bp [rwx]{1,3}
}
{event_pmu} |
-{bpf_object} |
-{bpf_source} |
{event} {
BEGIN(INITIAL);
REWIND(1);
@@ -257,14 +221,6 @@ modifier_bp [rwx]{1,3}
}
}
-<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.
@@ -272,6 +228,7 @@ modifier_bp [rwx]{1,3}
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); }
+config3 { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG3); }
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); }
@@ -288,19 +245,44 @@ 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); }
+metric-id { return term(yyscanner, PARSE_EVENTS__TERM_TYPE_METRIC_ID); }
+cpu-cycles|cycles { return hw_term(yyscanner, PERF_COUNT_HW_CPU_CYCLES); }
+stalled-cycles-frontend|idle-cycles-frontend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
+stalled-cycles-backend|idle-cycles-backend { return hw_term(yyscanner, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
+instructions { return hw_term(yyscanner, PERF_COUNT_HW_INSTRUCTIONS); }
+cache-references { return hw_term(yyscanner, PERF_COUNT_HW_CACHE_REFERENCES); }
+cache-misses { return hw_term(yyscanner, PERF_COUNT_HW_CACHE_MISSES); }
+branch-instructions|branches { return hw_term(yyscanner, PERF_COUNT_HW_BRANCH_INSTRUCTIONS); }
+branch-misses { return hw_term(yyscanner, PERF_COUNT_HW_BRANCH_MISSES); }
+bus-cycles { return hw_term(yyscanner, PERF_COUNT_HW_BUS_CYCLES); }
+ref-cycles { return hw_term(yyscanner, PERF_COUNT_HW_REF_CPU_CYCLES); }
+r{num_raw_hex} { return str(yyscanner, PE_RAW); }
+r0x{num_raw_hex} { return str(yyscanner, PE_RAW); }
, { return ','; }
"/" { BEGIN(INITIAL); return '/'; }
+{lc_type} { return lc_str(yyscanner, _parse_state); }
+{lc_type}-{lc_op_result} { return lc_str(yyscanner, _parse_state); }
+{lc_type}-{lc_op_result}-{lc_op_result} { return lc_str(yyscanner, _parse_state); }
{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 '/'; }
+ /*
+ * The colon before memory access modifiers can get mixed up with the
+ * colon before event modifiers. Fortunately none of the option letters
+ * are the same, so trailing context can be used disambiguate the two
+ * cases.
+ */
+":"/{modifier_bp} { return PE_BP_COLON; }
+ /*
+ * The slash before memory length can get mixed up with the slash before
+ * config terms. Fortunately config terms do not start with a numeric
+ * digit, so trailing context can be used disambiguate the two cases.
+ */
+"/"/{digit} { return PE_BP_SLASH; }
+"/"/{non_digit} { BEGIN(config); return '/'; }
{num_dec} { return value(yyscanner, 10); }
{num_hex} { return value(yyscanner, 16); }
/*
@@ -338,48 +320,23 @@ alignment-faults { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_AL
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); }
+user_time { return tool(yyscanner, PERF_TOOL_USER_TIME); }
+system_time { return tool(yyscanner, PERF_TOOL_SYSTEM_TIME); }
bpf-output { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
+cgroup-switches { return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CGROUP_SWITCHES); }
- /*
- * 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-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); }
-
+{lc_type} { return str(yyscanner, PE_LEGACY_CACHE); }
+{lc_type}-{lc_op_result} { return str(yyscanner, PE_LEGACY_CACHE); }
+{lc_type}-{lc_op_result}-{lc_op_result} { return str(yyscanner, PE_LEGACY_CACHE); }
mem: { BEGIN(mem); return PE_PREFIX_MEM; }
-r{num_raw_hex} { return raw(yyscanner); }
+r{num_raw_hex} { return str(yyscanner, PE_RAW); }
{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); }
+{name} { return str(yyscanner, PE_NAME); }
{name_tag} { return str(yyscanner, PE_NAME); }
"/" { BEGIN(config); return '/'; }
-- { return '-'; }
, { BEGIN(event); return ','; }
: { return ':'; }
"{" { BEGIN(event); return '{'; }
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.