source: rtems-libbsd/rtemsbsd/rtems/rtems-kernel-init.c @ c40e45b

55-freebsd-126-freebsd-12
Last change on this file since c40e45b was c40e45b, checked in by Sebastian Huber <sebastian.huber@…>, on 10/07/16 at 13:10:20

Update to FreeBSD head 2016-08-23

Git mirror commit 9fe7c416e6abb28b1398fd3e5687099846800cfd.

  • Property mode set to 100644
File size: 4.1 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup rtems_bsd_rtems
5 *
6 * @brief TODO.
7 */
8
9/*
10 * Copyright (c) 2009-2015 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Dornierstr. 4
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
20 * are met:
21 * 1. Redistributions of source code must retain the above copyright
22 *    notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 *    notice, this list of conditions and the following disclaimer in the
25 *    documentation and/or other materials provided with the distribution.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * SUCH DAMAGE.
38 */
39
40#include <machine/rtems-bsd-kernel-space.h>
41#include <machine/rtems-bsd-thread.h>
42
43#include <rtems/bsd/sys/param.h>
44#include <sys/types.h>
45#include <sys/systm.h>
46#include <sys/kernel.h>
47#include <sys/sysctl.h>
48#include <rtems/bsd/sys/lock.h>
49#include <sys/mutex.h>
50#include <sys/proc.h>
51#include <sys/stat.h>
52
53#include <rtems/bsd/bsd.h>
54
55SYSINIT_REFERENCE(configure1);
56SYSINIT_REFERENCE(module);
57SYSINIT_REFERENCE(kobj);
58SYSINIT_REFERENCE(linker_kernel);
59SYSINIT_MODULE_REFERENCE(rootbus);
60SYSINIT_DRIVER_REFERENCE(nexus, root);
61
62RTEMS_BSD_DEFINE_SET(modmetadata_set, struct mod_metadata *);
63RTEMS_BSD_DEFINE_SET(sysctl_set, struct sysctl_oid *);
64
65RTEMS_BSD_DEFINE_RWSET(sysinit_set, struct sysinit *);
66
67/* In FreeBSD this is a local function */
68void mi_startup(void);
69
70int hz;
71int tick;
72sbintime_t tick_sbt;
73struct bintime bt_timethreshold;
74struct bintime bt_tickthreshold;
75sbintime_t sbt_timethreshold;
76sbintime_t sbt_tickthreshold;
77struct bintime tc_tick_bt;
78sbintime_t tc_tick_sbt;
79int tc_precexp;
80int maxusers;     /* base tunable */
81
82static SYSCTL_NODE(_kern, OID_AUTO, smp, CTLFLAG_RD|CTLFLAG_CAPRD, NULL,
83    "Kernel SMP");
84
85static int maxid_maxcpus;
86
87SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD|CTLFLAG_CAPRD,
88    &maxid_maxcpus, 0, "Max CPU ID.");
89
90SYSCTL_INT(_kern_smp, OID_AUTO, maxcpus, CTLFLAG_RD|CTLFLAG_CAPRD,
91    &maxid_maxcpus, 0, "Max number of CPUs that the system was compiled for.");
92
93#undef _bsd_ticks
94
95RTEMS_STATIC_ASSERT(sizeof(int) == sizeof(int32_t), ticks);
96
97volatile uint32_t _Watchdog_Ticks_since_boot;
98
99extern volatile int32_t _bsd_ticks
100    __attribute__ ((__alias__("_Watchdog_Ticks_since_boot")));
101
102__attribute__((__weak__)) void _arc4random_getentropy_fail(void)
103{
104
105}
106
107__attribute__((__weak__)) int getentropy(void *buf, size_t n)
108{
109
110        memset(buf, 0, n);
111        return (0);
112}
113
114rtems_status_code
115rtems_bsd_initialize(void)
116{
117        static const char name[] = "TIME";
118        rtems_status_code sc;
119
120        hz = (int) rtems_clock_get_ticks_per_second();
121        tick = 1000000 / hz;
122        tick_sbt = SBT_1S / hz;
123        FREQ2BT(hz, &tc_tick_bt);
124        tc_tick_sbt = bttosbt(tc_tick_bt);
125        tc_precexp = 31;
126        bt_timethreshold.sec = INT_MAX;
127        bt_timethreshold.frac = ~(uint64_t)0;
128        bt_tickthreshold = bt_timethreshold;
129        sbt_timethreshold = bttosbt(bt_timethreshold);
130        sbt_tickthreshold = bttosbt(bt_tickthreshold);
131        maxusers = 1;
132        maxid_maxcpus = (int) rtems_get_processor_count();
133
134        mkdir("/etc", S_IRWXU | S_IRWXG | S_IRWXO);
135
136        sc =  rtems_timer_initiate_server(
137                rtems_bsd_get_task_priority(name),
138                rtems_bsd_get_task_stack_size(name),
139                RTEMS_DEFAULT_ATTRIBUTES
140        );
141        if (sc != RTEMS_SUCCESSFUL) {
142                return RTEMS_UNSATISFIED;
143        }
144
145        mutex_init();
146        mi_startup();
147
148        return RTEMS_SUCCESSFUL;
149}
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