1 files changed, 92 insertions, 0 deletions
diff --git a/src/test/test-boot-timestamps.c b/src/test/test-boot-timestamps.c
new file mode 100644
index 0000000..ae5b582
--- /dev/null
+++ b/src/test/test-boot-timestamps.c
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "acpi-fpdt.h"
+#include "boot-timestamps.h"
+#include "efi-loader.h"
+#include "log.h"
+#include "tests.h"
+#include "util.h"
+
+static int test_acpi_fpdt(void) {
+        char ts_start[FORMAT_TIMESPAN_MAX], ts_exit[FORMAT_TIMESPAN_MAX], ts_span[FORMAT_TIMESPAN_MAX];
+        usec_t loader_start, loader_exit;
+        int r;
+
+        r = acpi_get_boot_usec(&loader_start, &loader_exit);
+        if (r < 0) {
+                bool ok = r == -ENOENT || r == -EACCES || r == -ENODATA;
+
+                log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read ACPI FPDT: %m");
+                return ok ? 0 : r;
+        }
+
+        log_info("ACPI FPDT: loader start=%s exit=%s duration=%s",
+                 format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
+                 format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
+                 format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
+        return 1;
+}
+
+static int test_efi_loader(void) {
+        char ts_start[FORMAT_TIMESPAN_MAX], ts_exit[FORMAT_TIMESPAN_MAX], ts_span[FORMAT_TIMESPAN_MAX];
+        usec_t loader_start, loader_exit;
+        int r;
+
+        r = efi_loader_get_boot_usec(&loader_start, &loader_exit);
+        if (r < 0) {
+                bool ok = r == -ENOENT || r == -EACCES || r == -EOPNOTSUPP;
+
+                log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read EFI loader data: %m");
+                return ok ? 0 : r;
+        }
+
+        log_info("EFI Loader: start=%s exit=%s duration=%s",
+                 format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
+                 format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
+                 format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
+        return 1;
+}
+
+static int test_boot_timestamps(void) {
+        char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
+        dual_timestamp fw, l, k;
+        int r;
+
+        dual_timestamp_from_monotonic(&k, 0);
+
+        r = boot_timestamps(NULL, &fw, &l);
+        if (r < 0) {
+                bool ok = r == -ENOENT || r == -EACCES || r == -EOPNOTSUPP;
+
+                log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read variables: %m");
+                return ok ? 0 : r;
+        }
+
+        log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic, 0));
+        log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic, 0));
+        log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
+        log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
+        log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
+        return 1;
+}
+
+int main(int argc, char* argv[]) {
+        int p, q, r;
+
+        test_setup_logging(LOG_DEBUG);
+
+        p = test_acpi_fpdt();
+        assert(p >= 0);
+        q = test_efi_loader();
+        assert(q >= 0);
+        r = test_boot_timestamps();
+        assert(r >= 0);
+
+        if (p == 0 && q == 0 && r == 0)
+                return log_tests_skipped("access to firmware variables not possible");
+
+        return EXIT_SUCCESS;
+}