src/test/test-boot-timestamps.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Lennart Poettering
   4   Copyright 2013 Kay Sievers
   5 ***/
   6
   7 #include "acpi-fpdt.h"
   8 #include "boot-timestamps.h"
   9 #include "efivars.h"
  10 #include "log.h"
  11 #include "util.h"
  12
  13 static int test_acpi_fpdt(void) {
  14         usec_t loader_start;
  15         usec_t loader_exit;
  16         char ts_start[FORMAT_TIMESPAN_MAX];
  17         char ts_exit[FORMAT_TIMESPAN_MAX];
  18         char ts_span[FORMAT_TIMESPAN_MAX];
  19         int r;
  20
  21         r = acpi_get_boot_usec(&loader_start, &loader_exit);
  22         if (r < 0) {
  23                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES) || r == -ENODATA;
  24
  25                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  26                                r, "Failed to read ACPI FPDT: %m");
  27                 return ok ? 0 : r;
  28         }
  29
  30         log_info("ACPI FPDT: loader start=%s exit=%s duration=%s",
  31                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  32                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  33                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  34         return 1;
  35 }
  36
  37 static int test_efi_loader(void) {
  38         usec_t loader_start;
  39         usec_t loader_exit;
  40         char ts_start[FORMAT_TIMESPAN_MAX];
  41         char ts_exit[FORMAT_TIMESPAN_MAX];
  42         char ts_span[FORMAT_TIMESPAN_MAX];
  43         int r;
  44
  45         r = efi_loader_get_boot_usec(&loader_start, &loader_exit);
  46         if (r < 0) {
  47                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES);
  48
  49                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  50                                r, "Failed to read EFI loader data: %m");
  51                 return ok ? 0 : r;
  52         }
  53
  54         log_info("EFI Loader: start=%s exit=%s duration=%s",
  55                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  56                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  57                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  58         return 1;
  59 }
  60
  61 static int test_boot_timestamps(void) {
  62         char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
  63         int r;
  64         dual_timestamp fw, l, k;
  65
  66         dual_timestamp_from_monotonic(&k, 0);
  67
  68         r = boot_timestamps(NULL, &fw, &l);
  69         if (r < 0) {
  70                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES);
  71
  72                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  73                                r, "Failed to read variables: %m");
  74                 return ok ? 0 : r;
  75         }
  76
  77         log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic, 0));
  78         log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic, 0));
  79         log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
  80         log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
  81         log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
  82         return 1;
  83 }
  84
  85 int main(int argc, char* argv[]) {
  86         int p, q, r;
  87
  88         log_set_max_level(LOG_DEBUG);
  89         log_parse_environment();
  90
  91         p = test_acpi_fpdt();
  92         assert(p >= 0);
  93         q = test_efi_loader();
  94         assert(q >= 0);
  95         r = test_boot_timestamps();
  96         assert(r >= 0);
  97
  98         return (p > 0 || q > 0 || r >> 0) ? EXIT_SUCCESS : EXIT_TEST_SKIP;
  99 }