Rename FEATURE_INITRD to LINUXRC and make it separate, not an alias to init
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
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a27dc33f97
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52977a7d60
@ -390,7 +390,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_HALT=y
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# CONFIG_FEATURE_CALL_TELINIT is not set
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CONFIG_TELINIT_PATH=""
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@ -395,7 +395,7 @@ CONFIG_FEATURE_KILL_DELAY=0
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# CONFIG_FEATURE_INIT_SYSLOG is not set
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# CONFIG_FEATURE_EXTRA_QUIET is not set
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# CONFIG_FEATURE_INIT_COREDUMPS is not set
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# CONFIG_FEATURE_INITRD is not set
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# CONFIG_LINUXRC is not set
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# CONFIG_HALT is not set
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# CONFIG_FEATURE_CALL_TELINIT is not set
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CONFIG_TELINIT_PATH=""
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@ -407,7 +407,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_HALT=y
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# CONFIG_FEATURE_CALL_TELINIT is not set
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CONFIG_TELINIT_PATH=""
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@ -425,7 +425,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_INIT_TERMINAL_TYPE="linux"
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CONFIG_MESG=y
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CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y
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@ -532,7 +532,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_INIT_TERMINAL_TYPE="linux"
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CONFIG_FEATURE_INIT_MODIFY_CMDLINE=y
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CONFIG_MESG=y
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@ -448,7 +448,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_INIT_TERMINAL_TYPE="linux"
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CONFIG_MESG=y
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CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y
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@ -458,7 +458,7 @@ CONFIG_FEATURE_INIT_SCTTY=y
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CONFIG_FEATURE_INIT_SYSLOG=y
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CONFIG_FEATURE_EXTRA_QUIET=y
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CONFIG_FEATURE_INIT_COREDUMPS=y
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CONFIG_FEATURE_INITRD=y
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CONFIG_LINUXRC=y
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CONFIG_INIT_TERMINAL_TYPE="linux"
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CONFIG_MESG=y
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CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y
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@ -425,7 +425,7 @@ CONFIG_FEATURE_KILL_DELAY=0
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# CONFIG_FEATURE_INIT_SYSLOG is not set
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# CONFIG_FEATURE_EXTRA_QUIET is not set
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# CONFIG_FEATURE_INIT_COREDUMPS is not set
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# CONFIG_FEATURE_INITRD is not set
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# CONFIG_LINUXRC is not set
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CONFIG_INIT_TERMINAL_TYPE=""
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CONFIG_MESG=y
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CONFIG_FEATURE_MESG_ENABLE_ONLY_GROUP=y
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@ -422,7 +422,7 @@ CONFIG_FEATURE_KILL_DELAY=0
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# CONFIG_FEATURE_INIT_SYSLOG is not set
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# CONFIG_FEATURE_EXTRA_QUIET is not set
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# CONFIG_FEATURE_INIT_COREDUMPS is not set
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# CONFIG_FEATURE_INITRD is not set
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# CONFIG_LINUXRC is not set
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CONFIG_INIT_TERMINAL_TYPE=""
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# CONFIG_MESG is not set
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@ -135,7 +135,7 @@ int halt_main(int argc UNUSED_PARAM, char **argv)
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if (!(flags & 4)) { /* no -f */
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//TODO: I tend to think that signalling linuxrc is wrong
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// pity original author didn't comment on it...
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if (ENABLE_FEATURE_INITRD) {
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if (ENABLE_LINUXRC) {
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/* talk to linuxrc */
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/* bbox init/linuxrc assumed */
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pid_t *pidlist = find_pid_by_name("linuxrc");
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41
init/init.c
41
init/init.c
@ -16,10 +16,21 @@
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//config: help
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//config: init is the first program run when the system boots.
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//config:
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//config:config LINUXRC
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//config: bool "Support running init from within an initrd (not initramfs)"
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//config: default y
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//config: select FEATURE_SYSLOG
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//config: help
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//config: Legacy support for running init under the old-style initrd. Allows
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//config: the name linuxrc to act as init, and it doesn't assume init is PID 1.
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//config:
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//config: This does not apply to initramfs, which runs /init as PID 1 and
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//config: requires no special support.
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//config:
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//config:config FEATURE_USE_INITTAB
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//config: bool "Support reading an inittab file"
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: Allow init to read an inittab file when the system boot.
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//config:
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@ -46,7 +57,7 @@
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//config:config FEATURE_INIT_SCTTY
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//config: bool "Run commands with leading dash with controlling tty"
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: If this option is enabled, init will try to give a controlling
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//config: tty to any command which has leading hyphen (often it's "-/bin/sh").
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@ -61,40 +72,29 @@
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//config:config FEATURE_INIT_SYSLOG
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//config: bool "Enable init to write to syslog"
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config:
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//config:config FEATURE_EXTRA_QUIET
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//config: bool "Be _extra_ quiet on boot"
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: Prevent init from logging some messages to the console during boot.
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//config:
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//config:config FEATURE_INIT_COREDUMPS
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//config: bool "Support dumping core for child processes (debugging only)"
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: If this option is enabled and the file /.init_enable_core
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//config: exists, then init will call setrlimit() to allow unlimited
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//config: core file sizes. If this option is disabled, processes
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//config: will not generate any core files.
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//config:
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//config:config FEATURE_INITRD
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//config: bool "Support running init from within an initrd (not initramfs)"
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//config: default y
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//config: depends on INIT
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//config: help
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//config: Legacy support for running init under the old-style initrd. Allows
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//config: the name linuxrc to act as init, and it doesn't assume init is PID 1.
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//config:
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//config: This does not apply to initramfs, which runs /init as PID 1 and
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//config: requires no special support.
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//config:
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//config:config INIT_TERMINAL_TYPE
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//config: string "Initial terminal type"
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//config: default "linux"
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: This is the initial value set by init for the TERM environment
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//config: variable. This variable is used by programs which make use of
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@ -106,7 +106,7 @@
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//config:config FEATURE_INIT_MODIFY_CMDLINE
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//config: bool "Modify the command-line to \"init\""
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//config: default y
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//config: depends on INIT
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//config: depends on INIT || LINUXRC
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//config: help
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//config: When launched as PID 1 and after parsing its arguments, init
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//config: wipes all the arguments but argv[0] and rewrites argv[0] to
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@ -119,9 +119,10 @@
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//config: retrieved in /proc/1/cmdline on Linux, for example.
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//applet:IF_INIT(APPLET(init, BB_DIR_SBIN, BB_SUID_DROP))
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//applet:IF_FEATURE_INITRD(APPLET_ODDNAME(linuxrc, init, BB_DIR_ROOT, BB_SUID_DROP, linuxrc))
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//applet:IF_LINUXRC(APPLET_ODDNAME(linuxrc, init, BB_DIR_ROOT, BB_SUID_DROP, linuxrc))
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//kbuild:lib-$(CONFIG_INIT) += init.o
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//kbuild:lib-$(CONFIG_LINUXRC) += init.o
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#define DEBUG_SEGV_HANDLER 0
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@ -1057,7 +1058,7 @@ int init_main(int argc UNUSED_PARAM, char **argv)
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if (!DEBUG_INIT) {
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/* Expect to be invoked as init with PID=1 or be invoked as linuxrc */
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if (getpid() != 1
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&& (!ENABLE_FEATURE_INITRD || applet_name[0] != 'l') /* not linuxrc? */
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&& (!ENABLE_LINUXRC || applet_name[0] != 'l') /* not linuxrc? */
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) {
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bb_error_msg_and_die("must be run as PID 1");
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}
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