gcc perf_raw_event_code.c -lpfm -o perf_raw_event_code

perf_raw_event_code.c

#include <err.h>
#include <inttypes.h>
#include <perfmon/pfmlib.h>
#include <stdio.h>
#include <stdlib.h>

int main(int argc, char **argv) {
  if (argc < 2) {
    errx(1, "Usage: %s EVENT...\n", argv[0]);
  }
  int ret = pfm_initialize();
  if (ret != PFM_SUCCESS) {
    errx(1, "cannot initialize library %s", pfm_strerror(ret));
  }

  for (int i = 1; i < argc; ++i) {
    printf("%s\n", argv[i]);
    pfm_pmu_encode_arg_t arg = {};
    ret = pfm_get_os_event_encoding(argv[i], PFM_PLM3, PFM_OS_NONE, &arg);
    if (ret != PFM_SUCCESS) {
      err(1, " cannot get encoding %s", pfm_strerror(ret));
    }
    for (int j = 0; j < arg.count; j++) {
      printf("count[%d]=0x%" PRIx64 "\n", j, arg.codes[j]);
    }
    free(arg.codes);
  }
  return 0;
}