mirror of
https://git.rtems.org/rtems-libbsd/
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6514d56158
- Refactor the libio interface - Move syscalls into an rtemsbsd location - Provide a root directory mount point Update #4475
246 lines
7.0 KiB
C
246 lines
7.0 KiB
C
/**
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* @file
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*
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* @ingroup rtems_bsd_rtems
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*
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* @brief TODO.
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*/
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/*
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* Copyright (c) 2009-2015 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <machine/rtems-bsd-kernel-space.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/buf.h>
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#include <sys/filedesc.h>
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#include <sys/jail.h>
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#include <sys/kbio.h>
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#include <sys/kernel.h>
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#include <sys/ktr.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <sys/stat.h>
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#include <sys/sx.h>
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#include <sys/sysctl.h>
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#include <sys/sysent.h>
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#include <machine/rtems-bsd-page.h>
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#include <machine/rtems-bsd-thread.h>
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#include <dev/kbd/kbdreg.h>
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#include <net80211/ieee80211_freebsd.h>
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#include <limits.h>
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#include <rtems/bsd/bsd.h>
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#include <rtems/libio_.h>
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#include <rtems/malloc.h>
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#include <uuid/uuid.h>
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SYSINIT_REFERENCE(configure1);
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SYSINIT_REFERENCE(module);
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SYSINIT_REFERENCE(kobj);
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SYSINIT_REFERENCE(linker_kernel);
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SYSINIT_MODULE_REFERENCE(rootbus);
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SYSINIT_DRIVER_REFERENCE(nexus, root);
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RTEMS_BSD_DEFINE_SET(kbddriver_set, const keyboard_driver_t *);
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RTEMS_BSD_DEFINE_SET(modmetadata_set, struct mod_metadata *);
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RTEMS_BSD_DEFINE_SET(ieee80211_ioctl_getset, ieee80211_ioctl_getfunc *);
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RTEMS_BSD_DEFINE_SET(ieee80211_ioctl_setset, ieee80211_ioctl_setfunc *);
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typedef void (*ratectl_modevent)(int);
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RTEMS_BSD_DEFINE_SET(ratectl_set, ratectl_modevent);
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typedef void (*scanner_modevent)(int);
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RTEMS_BSD_DEFINE_SET(scanner_set, scanner_modevent);
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typedef void (*crypto_modevent)(int);
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RTEMS_BSD_DEFINE_SET(crypto_set, crypto_modevent);
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RTEMS_BSD_DEFINE_SET(sysctl_set, struct sysctl_oid *);
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RTEMS_BSD_DEFINE_RWSET(sysinit_set, struct sysinit *);
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/* In FreeBSD this is a local function */
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void mi_startup(void);
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int hz;
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int tick;
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volatile int ticks;
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sbintime_t tick_sbt;
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sbintime_t rtems_bsd_sbt_per_watchdog_tick;
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struct bintime bt_timethreshold;
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struct bintime bt_tickthreshold;
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sbintime_t sbt_timethreshold;
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sbintime_t sbt_tickthreshold;
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struct bintime tc_tick_bt;
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sbintime_t tc_tick_sbt;
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int tc_precexp;
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int maxproc;
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int maxfiles;
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int maxfilesperproc;
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int ngroups_max;
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int unmapped_buf_allowed;
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caddr_t unmapped_base;
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long maxbcache;
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int bio_transient_maxcnt;
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struct sx allproc_lock;
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struct vmem *rtems_bsd_transient_arena;
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int nbuf; /* The number of buffer headers */
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int nswbuf; /* Number of swap I/O buffer headers. */
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void (*nlminfo_release_p)(struct proc *p);
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struct sysentvec rtems_sysvec;
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static SYSCTL_NODE(
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_kern, OID_AUTO, smp, CTLFLAG_RD | CTLFLAG_CAPRD, NULL, "Kernel SMP");
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static int maxid_maxcpus;
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SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD | CTLFLAG_CAPRD,
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&maxid_maxcpus, 0, "Max CPU ID.");
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SYSCTL_INT(_kern_smp, OID_AUTO, maxcpus, CTLFLAG_RD | CTLFLAG_CAPRD,
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&maxid_maxcpus, 0, "Max number of CPUs that the system was compiled for.");
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static void
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cpu_startup(void *dummy)
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{
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kern_vfs_bio_buffer_alloc(unmapped_base, maxbcache);
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bufinit();
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vm_pager_bufferinit();
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}
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SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL);
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/*
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* Create a single process. RTEMS is a single address, single process OS.
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*/
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static void
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proc0_init(void *dummy)
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{
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struct proc *p = &proc0;
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struct ucred *newcred;
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struct uidinfo tmpuinfo;
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uuid_t uuid;
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uihashinit();
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/* Create the file descriptor table. */
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newcred = crget();
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newcred->cr_uid = 0;
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newcred->cr_ruid = 0;
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newcred->cr_ngroups = 1; /* group 0 */
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newcred->cr_groups[0] = 0;
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newcred->cr_rgid = 0;
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tmpuinfo.ui_uid = 1;
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curthread->td_ucred = newcred;
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newcred->cr_uidinfo = newcred->cr_ruidinfo = &tmpuinfo;
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newcred->cr_uidinfo = uifind(0);
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newcred->cr_ruidinfo = uifind(0);
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p->p_ucred = newcred;
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p->p_pid = getpid();
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p->p_fd = fdinit(NULL, false);
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p->p_fdtol = NULL;
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rtems_sysvec.sv_flags = SV_ABI_FREEBSD;
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#ifdef __LP64__
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rtems_sysvec.sv_flags |= SV_LP64;
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#else
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rtems_sysvec.sv_flags |= SV_ILP32;
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#endif
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p->p_sysent = &rtems_sysvec;
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uuid_generate(uuid);
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uuid_unparse(uuid, prison0.pr_hostuuid);
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}
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SYSINIT(p0init, SI_SUB_INTRINSIC, SI_ORDER_FIRST, proc0_init, NULL);
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rtems_status_code
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rtems_bsd_initialize(void)
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{
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static const char name[] = "TIME";
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rtems_status_code sc;
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int tps;
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/*
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* Limit the libbsd ticks per second to 100Hz. This helps to reduce
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* the processor load on low end targets which use 1000Hz for the RTEMS
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* clock tick.
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*/
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tps = (int)rtems_clock_get_ticks_per_second();
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hz = MIN(100, tps);
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tick = 1000000 / hz;
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tick_sbt = SBT_1S / hz;
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rtems_bsd_sbt_per_watchdog_tick = SBT_1S / tps;
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FREQ2BT(hz, &tc_tick_bt);
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tc_tick_sbt = bttosbt(tc_tick_bt);
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tc_precexp = 31;
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bt_timethreshold.sec = INT_MAX;
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bt_timethreshold.frac = ~(uint64_t)0;
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bt_tickthreshold = bt_timethreshold;
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sbt_timethreshold = bttosbt(bt_timethreshold);
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sbt_tickthreshold = bttosbt(bt_tickthreshold);
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maxid_maxcpus = (int)rtems_scheduler_get_processor_maximum();
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bio_transient_maxcnt = 1024;
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sx_init(&allproc_lock, "allproc");
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maxfiles = rtems_libio_number_iops;
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maxfilesperproc = maxfiles;
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maxproc = 16;
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ngroups_max = 4;
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maxbcache = rtems_bsd_get_allocator_domain_size(
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RTEMS_BSD_ALLOCATOR_DOMAIN_BIO);
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unmapped_base = (caddr_t)rtems_heap_allocate_aligned_with_boundary(
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maxbcache, CACHE_LINE_SIZE, 0);
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if (unmapped_base == NULL) {
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return RTEMS_UNSATISFIED;
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}
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mkdir("/etc", S_IRWXU | S_IRWXG | S_IRWXO);
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sc = rtems_timer_initiate_server(rtems_bsd_get_task_priority(name),
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rtems_bsd_get_task_stack_size(name), RTEMS_DEFAULT_ATTRIBUTES);
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if (sc != RTEMS_SUCCESSFUL) {
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return RTEMS_UNSATISFIED;
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}
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mutex_init();
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mi_startup();
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#ifdef KTR
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ktr_verbose = 10;
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ktr_mask = KTR_ALL;
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ktr_mask = KTR_GEN | KTR_LOCK | KTR_VFS | KTR_VOP | KTR_BUF |
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KTR_MALLOC | KTR_SYSC | KTR_RUNQ;
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#endif
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return RTEMS_SUCCESSFUL;
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}
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