From 8d16db0cc28b2d911aee918d5c3582ad29ddfeed Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Wed, 18 Sep 2013 15:59:31 +0200
Subject: Add proc_set_init_task, make runsystem pid 1

* hurd/process.defs (proc_set_init_task): New procedure.
* hurd/process_reply.defs (proc_set_init_task): Likewise.
* hurd/process_request.defs (proc_set_init_task): Likewise.
* include/pids.h: Add HURD_PID_INIT as 1, adjust others accordingly.
* init/init.c (start_child): Register the child task.
* proc/proc.h (init_proc): New variable.
(create_startup_proc): Rename to create_init_proc.
* proc/main.c (main): Create placeholder proc object for pid 1.
* proc/mgt.c: Use init_proc instead of startup_proc, as the former is
the new root of the process tree.
(create_startup_proc): Rename to create_init_proc.
(S_proc_set_init_task): New function.
* doc/hurd.texi (Server Bootstrap): Update accordingly.
* procfs/main.c: Do not hard-code kernel pid, use pids.h instead.
---
 hurd/process.defs         | 6 +++++-
 hurd/process_reply.defs   | 2 +-
 hurd/process_request.defs | 7 ++++++-
 3 files changed, 12 insertions(+), 3 deletions(-)

(limited to 'hurd')

diff --git a/hurd/process.defs b/hurd/process.defs
index bf905564..498faba8 100644
--- a/hurd/process.defs
+++ b/hurd/process.defs
@@ -373,7 +373,11 @@ routine proc_getnports (
 
 /*** Routines related to early server bootstrapping ***/
 
-skip;  /* Reserved for proc_set_init_task */
+/* Set the task of process HURD_PID_INIT. Only the startup process
+   HURD_PID_STARTUP may use this interface.  */
+routine proc_set_init_task (
+	process: process_t;
+	task: task_t);
 
 /* Inform the process server that the process is important.  */
 routine proc_mark_important (
diff --git a/hurd/process_reply.defs b/hurd/process_reply.defs
index ed46d55b..80454a6b 100644
--- a/hurd/process_reply.defs
+++ b/hurd/process_reply.defs
@@ -177,7 +177,7 @@ simpleroutine proc_getnports_reply (
 
 /*** Routines related to early server bootstrapping ***/
 
-skip;  /* Reserved for proc_set_init_task */
+skip; /* proc_set_init_task */
 skip; /* proc_mark_important */
 
 simpleroutine proc_is_important_reply (
diff --git a/hurd/process_request.defs b/hurd/process_request.defs
index 38e71461..7565f03f 100644
--- a/hurd/process_request.defs
+++ b/hurd/process_request.defs
@@ -374,7 +374,12 @@ simpleroutine proc_getnports_request (
 
 /*** Routines related to early server bootstrapping ***/
 
-skip;  /* Reserved for proc_set_init_task */
+/* Set the task of process HURD_PID_INIT. Only the startup process
+   HURD_PID_STARTUP may use this interface.  */
+simpleroutine proc_set_init_task_request (
+	process: process_t;
+	ureplyport reply: reply_port_t;
+	task: task_t);
 
 /* Inform the process server that the process is important.  */
 simpleroutine proc_mark_important_request (
-- 
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