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bootchart: Ensure that systemd is the init called after using bootchart 

When booting with systemd-bootchart, default to call the systemd binary
rather than the init binary on disk, which might be another init system.
Collecting data only works with booting systemd.
This commit is contained in:
Sebastien Bacher 2015-02-02 15:48:40 +01:00 committed by Lennart Poettering
parent bca81be775
commit 6e1bf7ab99
3 changed files with 5 additions and 5 deletions
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2
man/bootchart.conf.xml
View File

@ -124,7 +124,7 @@
<varlistentry>
<term><varname>Init=[path]</varname></term>
<listitem><para>Configures bootchart to run a non-standard
binary instead of <filename>/sbin/init</filename>. This
binary instead of <filename>/usr/lib/systemd/systemd</filename>. This
option is only relevant if bootchart was invoked from the
kernel command line with
init=/usr/lib/systemd/systemd-bootchart.</para></listitem>

4
man/systemd-bootchart.xml
View File

@ -116,7 +116,7 @@
<command>systemd-bootchart</command>
instead of the init process. In turn,
<command>systemd-bootchart</command>
will invoke <command>/sbin/init</command>.
will invoke <command>/usr/lib/systemd/systemd</command>.
</para></listitem>
</varlistentry>
@ -218,7 +218,7 @@
<term><option>-i</option></term>
<term><option>--init <replaceable>path</replaceable></option></term>
<listitem><para>Use this init binary. Defaults to
<command>/sbin/init</command>.
<command>/usr/lib/systemd/systemd</command>.
</para></listitem>
</varlistentry>

4
src/bootchart/bootchart.c
View File

@ -76,7 +76,7 @@ int sysfd=-1;
#define DEFAULT_HZ 25.0
#define DEFAULT_SCALE_X 100.0 /* 100px = 1sec */
#define DEFAULT_SCALE_Y 20.0 /* 16px = 1 process bar */
#define DEFAULT_INIT "/sbin/init"
#define DEFAULT_INIT ROOTLIBDIR "/systemd/systemd"
#define DEFAULT_OUTPUT "/run/log"
/* graph defaults */
@ -326,7 +326,7 @@ int main(int argc, char *argv[]) {
/*
* If the kernel executed us through init=/usr/lib/systemd/systemd-bootchart, then
* fork:
* - parent execs executable specified via init_path[] (/sbin/init by default) as pid=1
* - parent execs executable specified via init_path[] (/usr/lib/systemd/systemd by default) as pid=1
* - child logs data
*/
if (getpid() == 1) {