src/test/test-boot-timestamps.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Lennart Poettering
   5   Copyright 2013 Kay Sievers
   6
   7   systemd is free software; you can redistribute it and/or modify it
   8   under the terms of the GNU Lesser General Public License as published by
   9   the Free Software Foundation; either version 2.1 of the License, or
  10   (at your option) any later version.
  11
  12   systemd is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   Lesser General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19 ***/
  20
  21 #include "acpi-fpdt.h"
  22 #include "boot-timestamps.h"
  23 #include "efivars.h"
  24 #include "log.h"
  25 #include "util.h"
  26
  27 static int test_acpi_fpdt(void) {
  28         usec_t loader_start;
  29         usec_t loader_exit;
  30         char ts_start[FORMAT_TIMESPAN_MAX];
  31         char ts_exit[FORMAT_TIMESPAN_MAX];
  32         char ts_span[FORMAT_TIMESPAN_MAX];
  33         int r;
  34
  35         r = acpi_get_boot_usec(&loader_start, &loader_exit);
  36         if (r < 0) {
  37                 if (r != -ENOENT)
  38                         log_error_errno(r, "Failed to read ACPI FPDT: %m");
  39                 return r;
  40         }
  41
  42         log_info("ACPI FPDT: loader start=%s exit=%s duration=%s",
  43                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  44                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  45                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  46
  47         return 0;
  48 }
  49
  50 static int test_efi_loader(void) {
  51         usec_t loader_start;
  52         usec_t loader_exit;
  53         char ts_start[FORMAT_TIMESPAN_MAX];
  54         char ts_exit[FORMAT_TIMESPAN_MAX];
  55         char ts_span[FORMAT_TIMESPAN_MAX];
  56         int r;
  57
  58         r = efi_loader_get_boot_usec(&loader_start, &loader_exit);
  59         if (r < 0) {
  60                 if (r != -ENOENT)
  61                         log_error_errno(r, "Failed to read EFI loader data: %m");
  62                 return r;
  63         }
  64
  65         log_info("EFI Loader: start=%s exit=%s duration=%s",
  66                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  67                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  68                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  69
  70         return 0;
  71 }
  72
  73 int main(int argc, char* argv[]) {
  74         char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
  75         int r;
  76         dual_timestamp fw, l, k;
  77
  78         test_acpi_fpdt();
  79         test_efi_loader();
  80
  81         dual_timestamp_from_monotonic(&k, 0);
  82
  83         r = boot_timestamps(NULL, &fw, &l);
  84         if (r < 0) {
  85                 log_error_errno(r, "Failed to read variables: %m");
  86                 return 1;
  87         }
  88
  89         log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic, 0));
  90         log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic, 0));
  91         log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
  92         log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
  93         log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
  94
  95         return 0;
  96 }