X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fmain.c;h=32ccf0bd5c92039f900934347c5dfda0da6088bd;hp=8d27eb426692afa500d59b5b1b6a0ca5cdd0d707;hb=07672f492ef085a9143ce3535700c0d4e83173de;hpb=3731f1eaa8f9df60db469b665246a02d5e31d92b diff --git a/src/main.c b/src/main.c index 8d27eb426..32ccf0bd5 100644 --- a/src/main.c +++ b/src/main.c @@ -169,7 +169,7 @@ _noreturn_ static void crash(int sig) { _exit(1); } - log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid); + log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); } log_info("Freezing execution."); @@ -203,7 +203,7 @@ static int console_setup(bool do_reset) { return -tty_fd; } - if ((r = reset_terminal(tty_fd)) < 0) + if ((r = reset_terminal_fd(tty_fd)) < 0) log_error("Failed to reset /dev/console: %s", strerror(-r)); close_nointr_nofail(tty_fd); @@ -898,6 +898,9 @@ static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) { assert(_f); assert(_fds); + /* Make sure nothing is really destructed when we shut down */ + m->n_reloading ++; + if ((r = manager_open_serialization(m, &f)) < 0) { log_error("Failed to create serialization file: %s", strerror(-r)); goto fail; @@ -985,21 +988,43 @@ static void test_usr(void) { /* Check that /usr is not a separate fs */ - if (dir_is_empty("/usr") > 0) - log_warning("/usr appears to be on a different file system than /. This is not supported anymore. " - "Some things will probably break (sometimes even silently) in mysterious ways. " - "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); + if (dir_is_empty("/usr") <= 0) + return; + + log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " + "Some things will probably break (sometimes even silently) in mysterious ways. " + "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); +} + +static void test_cgroups(void) { + + if (access("/proc/cgroups", F_OK) >= 0) + return; + + log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " + "Systems without control groups are not supported. " + "We will now sleep for 10s, and then continue boot-up. " + "Expect breakage and please do not file bugs. " + "Instead fix your kernel and enable CONFIG_CGROUPS." ); + + sleep(10); } int main(int argc, char *argv[]) { Manager *m = NULL; int r, retval = EXIT_FAILURE; + usec_t before_startup, after_startup; + char timespan[FORMAT_TIMESPAN_MAX]; FDSet *fds = NULL; bool reexecute = false; const char *shutdown_verb = NULL; dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; char systemd[] = "systemd"; + bool is_reexec = false; + int j; + bool loaded_policy = false; +#ifdef HAVE_SYSV_COMPAT if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { /* This is compatibility support for SysV, where * calling init as a user is identical to telinit. */ @@ -1009,6 +1034,17 @@ int main(int argc, char *argv[]) { log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); return 1; } +#endif + + /* Determine if this is a reexecution or normal bootup. We do + * the full command line parsing much later, so let's just + * have a quick peek here. */ + + for (j = 1; j < argc; j++) + if (streq(argv[j], "--deserialize")) { + break; + is_reexec = true; + } /* If we get started via the /sbin/init symlink then we are called 'init'. After a subsequent reexecution we are then @@ -1017,6 +1053,8 @@ int main(int argc, char *argv[]) { program_invocation_short_name = systemd; prctl(PR_SET_NAME, systemd); + saved_argv = argv; + saved_argc = argc; log_show_color(isatty(STDERR_FILENO) > 0); log_show_location(false); @@ -1026,16 +1064,30 @@ int main(int argc, char *argv[]) { arg_running_as = MANAGER_SYSTEM; log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_CONSOLE : LOG_TARGET_SYSLOG_OR_KMSG); - /* This might actually not return, but cause a - * reexecution */ - if (selinux_setup(argv) < 0) - goto finish; + if (!is_reexec) + if (selinux_setup(&loaded_policy) < 0) + goto finish; + + log_open(); if (label_init() < 0) goto finish; + + if (!is_reexec) + if (hwclock_is_localtime() > 0) { + int min; + + r = hwclock_apply_localtime_delta(&min); + if (r < 0) + log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); + else + log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); + } + } else { arg_running_as = MANAGER_USER; - log_set_target(LOG_TARGET_CONSOLE); + log_set_target(LOG_TARGET_AUTO); + log_open(); } if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) @@ -1044,7 +1096,7 @@ int main(int argc, char *argv[]) { /* Mount /proc, /sys and friends, so that /proc/cmdline and * /proc/$PID/fd is available. */ if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) - if (mount_setup() < 0) + if (mount_setup(loaded_policy) < 0) goto finish; /* Reset all signal handlers. */ @@ -1077,11 +1129,6 @@ int main(int argc, char *argv[]) { goto finish; } - /* If Plymouth is being run make sure we show the status, so - * that there's something nice to see when people press Esc */ - if (access("/run/initramfs/plymouth", F_OK) >= 0) - arg_show_status = true; - if (arg_action == ACTION_HELP) { retval = help(); goto finish; @@ -1096,6 +1143,9 @@ int main(int argc, char *argv[]) { assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); + /* Close logging fds, in order not to confuse fdset below */ + log_close(); + /* Remember open file descriptors for later deserialization */ if (serialization) { if ((r = fdset_new_fill(&fds)) < 0) { @@ -1143,7 +1193,7 @@ int main(int argc, char *argv[]) { /* Reset the console, but only if this is really init and we * are freshly booted */ if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { - console_setup(getpid() == 1 && !serialization); + console_setup(getpid() == 1 && !is_reexec); make_null_stdio(); } @@ -1158,10 +1208,10 @@ int main(int argc, char *argv[]) { log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as)); - if (arg_running_as == MANAGER_SYSTEM && !serialization) { + if (arg_running_as == MANAGER_SYSTEM && !is_reexec) { locale_setup(); - if (arg_show_status) + if (arg_show_status || plymouth_running()) status_welcome(); kmod_setup(); @@ -1171,6 +1221,7 @@ int main(int argc, char *argv[]) { test_mtab(); test_usr(); + test_cgroups(); } if ((r = manager_new(arg_running_as, &m)) < 0) { @@ -1194,6 +1245,8 @@ int main(int argc, char *argv[]) { if (arg_default_controllers) manager_set_default_controllers(m, arg_default_controllers); + before_startup = now(CLOCK_MONOTONIC); + if ((r = manager_startup(m, serialization, fds)) < 0) log_error("Failed to fully start up daemon: %s", strerror(-r)); @@ -1253,6 +1306,11 @@ int main(int argc, char *argv[]) { goto finish; } + after_startup = now(CLOCK_MONOTONIC); + log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, + "Loaded units and determined initial transaction in %s.", + format_timespan(timespan, sizeof(timespan), after_startup - before_startup)); + if (arg_action == ACTION_TEST) { printf("-> By jobs:\n"); manager_dump_jobs(m, stdout, "\t");