tools/perf/util/pmu.y

   1
   2 %name-prefix "perf_pmu_"
   3 %parse-param {struct list_head *format}
   4 %parse-param {char *name}
   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
  14 extern int perf_pmu_lex (void);
  15
  16 #define ABORT_ON(val) \
  17 do { \
  18         if (val) \
  19                 YYABORT; \
  20 } while (0)
  21
  22 %}
  23
  24 %token PP_CONFIG PP_CONFIG1 PP_CONFIG2
  25 %token PP_VALUE PP_ERROR
  26 %type <num> PP_VALUE
  27 %type <bits> bit_term
  28 %type <bits> bits
  29
  30 %union
  31 {
  32         unsigned long num;
  33         DECLARE_BITMAP(bits, PERF_PMU_FORMAT_BITS);
  34 }
  35
  36 %%
  37
  38 format:
  39 format format_term
  40 |
  41 format_term
  42
  43 format_term:
  44 PP_CONFIG ':' bits
  45 {
  46         ABORT_ON(perf_pmu__new_format(format, name,
  47                                       PERF_PMU_FORMAT_VALUE_CONFIG,
  48                                       $3));
  49 }
  50 |
  51 PP_CONFIG1 ':' bits
  52 {
  53         ABORT_ON(perf_pmu__new_format(format, name,
  54                                       PERF_PMU_FORMAT_VALUE_CONFIG1,
  55                                       $3));
  56 }
  57 |
  58 PP_CONFIG2 ':' bits
  59 {
  60         ABORT_ON(perf_pmu__new_format(format, name,
  61                                       PERF_PMU_FORMAT_VALUE_CONFIG2,
  62                                       $3));
  63 }
  64
  65 bits:
  66 bits ',' bit_term
  67 {
  68         bitmap_or($$, $1, $3, 64);
  69 }
  70 |
  71 bit_term
  72 {
  73         memcpy($$, $1, sizeof($1));
  74 }
  75
  76 bit_term:
  77 PP_VALUE '-' PP_VALUE
  78 {
  79         perf_pmu__set_format($$, $1, $3);
  80 }
  81 |
  82 PP_VALUE
  83 {
  84         perf_pmu__set_format($$, $1, 0);
  85 }
  86
  87 %%
  88
  89 void perf_pmu_error(struct list_head *list __maybe_unused,
  90                     char *name __maybe_unused,
  91                     char const *msg __maybe_unused)
  92 {
  93 }