size = min(val->size, STR_VAR_LEN_MAX);
strscpy(str, val_str, size);
} else {
+ char *stack_start = str + sizeof(unsigned long);
int e;
- e = stack_trace_save((void *)str,
+ e = stack_trace_save((void *)stack_start,
HIST_STACKTRACE_DEPTH,
HIST_STACKTRACE_SKIP);
if (e < HIST_STACKTRACE_DEPTH - 1)
- ((unsigned long *)str)[e] = 0;
+ ((unsigned long *)stack_start)[e] = 0;
+ *((unsigned long *)str) = e;
}
var_val = (u64)(uintptr_t)str;
}
size = min(hist_field->size, STR_VAR_LEN_MAX);
strscpy(str, val_str, size);
} else {
+ char *stack_start = str + sizeof(unsigned long);
int e;
- e = stack_trace_save((void *)str,
+ e = stack_trace_save((void *)stack_start,
HIST_STACKTRACE_DEPTH,
HIST_STACKTRACE_SKIP);
if (e < HIST_STACKTRACE_DEPTH - 1)
- ((unsigned long *)str)[e] = 0;
+ ((unsigned long *)stack_start)[e] = 0;
+ *((unsigned long *)str) = e;
}
hist_val = (u64)(uintptr_t)str;
}
val_idx = var_ref_idx[field_pos];
str_val = (char *)(long)var_ref_vals[val_idx];
- len = kern_fetch_store_strlen((unsigned long)str_val);
+ if (event->dynamic_fields[i]->is_stack) {
+ len = *((unsigned long *)str_val);
+ len *= sizeof(unsigned long);
+ } else {
+ len = kern_fetch_store_strlen((unsigned long)str_val);
+ }
fields_size += len;
}