src/test/test-boot-timestamps.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2013 Lennart Poettering
   6   Copyright 2013 Kay Sievers
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include "acpi-fpdt.h"
  23 #include "boot-timestamps.h"
  24 #include "efivars.h"
  25 #include "log.h"
  26 #include "util.h"
  27
  28 static int test_acpi_fpdt(void) {
  29         usec_t loader_start;
  30         usec_t loader_exit;
  31         char ts_start[FORMAT_TIMESPAN_MAX];
  32         char ts_exit[FORMAT_TIMESPAN_MAX];
  33         char ts_span[FORMAT_TIMESPAN_MAX];
  34         int r;
  35
  36         r = acpi_get_boot_usec(&loader_start, &loader_exit);
  37         if (r < 0) {
  38                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES) || r == -ENODATA;
  39
  40                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  41                                r, "Failed to read ACPI FPDT: %m");
  42                 return ok ? 0 : r;
  43         }
  44
  45         log_info("ACPI FPDT: loader start=%s exit=%s duration=%s",
  46                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  47                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  48                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  49         return 1;
  50 }
  51
  52 static int test_efi_loader(void) {
  53         usec_t loader_start;
  54         usec_t loader_exit;
  55         char ts_start[FORMAT_TIMESPAN_MAX];
  56         char ts_exit[FORMAT_TIMESPAN_MAX];
  57         char ts_span[FORMAT_TIMESPAN_MAX];
  58         int r;
  59
  60         r = efi_loader_get_boot_usec(&loader_start, &loader_exit);
  61         if (r < 0) {
  62                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES);
  63
  64                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  65                                r, "Failed to read EFI loader data: %m");
  66                 return ok ? 0 : r;
  67         }
  68
  69         log_info("EFI Loader: start=%s exit=%s duration=%s",
  70                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  71                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  72                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  73         return 1;
  74 }
  75
  76 static int test_boot_timestamps(void) {
  77         char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
  78         int r;
  79         dual_timestamp fw, l, k;
  80
  81         dual_timestamp_from_monotonic(&k, 0);
  82
  83         r = boot_timestamps(NULL, &fw, &l);
  84         if (r < 0) {
  85                 bool ok = r == -ENOENT || (getuid() != 0 && r == -EACCES);
  86
  87                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR,
  88                                r, "Failed to read variables: %m");
  89                 return ok ? 0 : r;
  90         }
  91
  92         log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic, 0));
  93         log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic, 0));
  94         log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
  95         log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
  96         log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
  97         return 1;
  98 }
  99
 100 int main(int argc, char* argv[]) {
 101         int p, q, r;
 102
 103         log_set_max_level(LOG_DEBUG);
 104         log_parse_environment();
 105
 106         p = test_acpi_fpdt();
 107         assert(p >= 0);
 108         q = test_efi_loader();
 109         assert(q >= 0);
 110         r = test_boot_timestamps();
 111         assert(r >= 0);
 112
 113         return (p > 0 || q > 0 || r >> 0) ? EXIT_SUCCESS : EXIT_TEST_SKIP;
 114 }