xref: /kernel/linux/linux-6.6/tools/perf/util/pmu.y (revision 62306a36) 
1%define api.pure full
2%parse-param {void *format}
3%parse-param {void *scanner}
4%lex-param {void* scanner}
5
6%{
7
8#include <linux/compiler.h>
9#include <linux/list.h>
10#include <linux/bitmap.h>
11#include <string.h>
12#include "pmu.h"
13#include "pmu-bison.h"
14
15int perf_pmu_lex(YYSTYPE * yylval_param , void *yyscanner);
16
17#define ABORT_ON(val) \
18do { \
19        if (val) \
20                YYABORT; \
21} while (0)
22
23static void perf_pmu_error(void *format, void *scanner, const char *msg);
24
25static void perf_pmu__set_format(unsigned long *bits, long from, long to)
26{
27	long b;
28
29	if (!to)
30		to = from;
31
32	memset(bits, 0, BITS_TO_BYTES(PERF_PMU_FORMAT_BITS));
33	for (b = from; b <= to; b++)
34		__set_bit(b, bits);
35}
36
37%}
38
39%token PP_CONFIG
40%token PP_VALUE PP_ERROR
41%type <num> PP_VALUE
42%type <bits> bit_term
43%type <bits> bits
44
45%union
46{
47	unsigned long num;
48	DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
49}
50
51%%
52
53format:
54format format_term
55|
56format_term
57
58format_term:
59PP_CONFIG ':' bits
60{
61	perf_pmu_format__set_value(format, PERF_PMU_FORMAT_VALUE_CONFIG, $3);
62}
63|
64PP_CONFIG PP_VALUE ':' bits
65{
66	perf_pmu_format__set_value(format, $2, $4);
67}
68
69bits:
70bits ',' bit_term
71{
72	bitmap_or($$, $1, $3, 64);
73}
74|
75bit_term
76{
77	memcpy($$, $1, sizeof($1));
78}
79
80bit_term:
81PP_VALUE '-' PP_VALUE
82{
83	perf_pmu__set_format($$, $1, $3);
84}
85|
86PP_VALUE
87{
88	perf_pmu__set_format($$, $1, 0);
89}
90
91%%
92
93static void perf_pmu_error(void *format __maybe_unused,
94			   void *scanner __maybe_unused,
95			   const char *msg __maybe_unused)
96{
97}
98