bool gcov_read_record(int fd, struct gcov_record *rec)
{
ssize_t r;
r = gcov_read(fd, &rec->hdr, sizeof rec->hdr);
if (r < sizeof rec->hdr) {
return false;
}
r = gcov_read(fd, &rec->data.u8[0], rec->hdr.length * 4);
if (r < rec->hdr.length * 4) {
return false;
}
return true;
}
int main(int argc, char **argv)
{
int opt;
while ((opt = getopt(argc, argv, "h")) != -1) {
switch (opt) {
case 'h':
usage(0);
break;
default:
usage(1);
}
}
argv += optind;
argc -= optind;
if (argc <= 0)
usage(1);
xch = xc_interface_open(NULL, NULL, 0);
if (!xch)
err(1, "opening xc interface");
if (strcmp(argv[0], "reset") == 0)
gcov_reset();
else if (strcmp(argv[0], "read") == 0)
gcov_read(argc > 1 ? argv[1] : "-");
else
usage(1);
xc_interface_close(xch);
return 0;
}
bool gcov_read_file_header(int fd, struct gcov_file_header *h)
{
ssize_t r;
r = gcov_read(fd, h, sizeof *h);
if (r < 0)
return false;
return true;
}