static struct msrmap *lookup_msr(char *map, jsmntok_t *val)
{
jsmntok_t newval = *val;
static bool warned = false;
int i;
cut_comma(map, &newval);
for (i = 0; msrmap[i].num; i++)
if (json_streq(map, &newval, msrmap[i].num))
return &msrmap[i];
if (!warned) {
warned = true;
fprintf(stderr, "Unknown MSR in event file %.*s\n",
json_len(val), map + val->start);
}
return NULL;
}
static void addfield(char *map, char **dst, const char *sep,
const char *a, jsmntok_t *bt)
{
unsigned len = strlen(a) + 1 + strlen(sep);
int olen = *dst ? strlen(*dst) : 0;
int blen = bt ? json_len(bt) : 0;
*dst = realloc(*dst, len + olen + blen);
if (!*dst)
exit(ENOMEM);
if (!olen)
*(*dst) = 0;
else
strcat(*dst, sep);
strcat(*dst, a);
if (bt)
strncat(*dst, map + bt->start, blen);
}
static struct msrmap *lookup_msr(char *map, jsmntok_t *val)
{
jsmntok_t newval = *val;
static bool warned = false;
int i;
cut_comma(map, &newval);
for (i = 0; msrmap[i].num; i++)
if (json_streq(map, &newval, msrmap[i].num))
return &msrmap[i];
if (!warned && strncmp(map + val->start, "0x3F7", 5)) {
/* no warning for Skylake PEBS Frontend MSR */
warned = true;
fprintf(stderr, "Unknown MSR in event file %.*s\n",
json_len(val), map + val->start);
}
return NULL;
}
static void addfield(char *map, char **dst, const char *sep,
const char *a, jsmntok_t *bt)
{
unsigned int len = strlen(a) + 1 + strlen(sep);
int olen = *dst ? strlen(*dst) : 0;
int blen = bt ? json_len(bt) : 0;
char *out;
out = realloc(*dst, len + olen + blen);
if (!out) {
/* Don't add field in this case */
return;
}
*dst = out;
if (!olen)
*(*dst) = 0;
else
strcat(*dst, sep);
strcat(*dst, a);
if (bt)
strncat(*dst, map + bt->start, blen);
}
