diff options
Diffstat (limited to 'utils/aperf.c')
| -rw-r--r-- | utils/aperf.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/utils/aperf.c b/utils/aperf.c index c5ceb4b..627fb17 100644 --- a/utils/aperf.c +++ b/utils/aperf.c @@ -46,6 +46,7 @@ #include <unistd.h> #include <getopt.h> #include <sys/time.h> +#include <sys/types.h> #include <stdint.h> #include <errno.h> #include <fcntl.h> @@ -396,8 +397,13 @@ int main(int argc, char *argv[]) } } + if (getuid() != 0) { + fprintf(stderr, "You must be root\n"); + return EXIT_FAILURE; + } + if (!cpu_has_effective_freq()) { - fprintf(stderr, "CPU doesn't support APERF/MPERF!\n"); + fprintf(stderr, "CPU doesn't support APERF/MPERF\n"); return EXIT_FAILURE; } |