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main: add some more comments for the early initialization phase

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This commit is contained in:
Lennart Poettering
2017-12-15 19:03:17 +01:00
parent 625e8690ab
commit d72a8f10b6
1 changed files with 7 additions and 4 deletions
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11
src/core/main.c
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@@ -2304,20 +2304,23 @@ int main(int argc, char *argv[]) {
Manager *m = NULL;
FDSet *fds = NULL;
/* SysV compatibility: redirect init → telinit */
redirect_telinit(argc, argv);
/* Take timestamps early on */
dual_timestamp_from_monotonic(&kernel_timestamp, 0);
dual_timestamp_get(&userspace_timestamp);
/* Figure out whether we need to do initialize the system, or if we already did that because we are
* reexecuting */
skip_setup = early_skip_setup_check(argc, argv);
/* If we get started via the /sbin/init symlink then we are
called 'init'. After a subsequent reexecution we are then
called 'systemd'. That is confusing, hence let's call us
systemd right-away. */
/* If we get started via the /sbin/init symlink then we are called 'init'. After a subsequent reexecution we
* are then called 'systemd'. That is confusing, hence let's call us systemd right-away. */
program_invocation_short_name = systemd;
(void) prctl(PR_SET_NAME, systemd);
/* Save the original command line */
saved_argv = argv;
saved_argc = argc;