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sys/kern: Add VFS support

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- Refactor the libio interface

- Move syscalls into an rtemsbsd location

- Provide a root directory mount point

Update #4475
This commit is contained in:
Chris Johns
2021-08-02 15:09:41 +10:00
parent ac4db4cec5
commit 6514d56158
99 changed files with 14041 additions and 3399 deletions
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93
rtemsbsd/rtems/rtems-kernel-init.c
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@@ -38,30 +38,37 @@
*/
#include <machine/rtems-bsd-kernel-space.h>
#include <machine/rtems-bsd-thread.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf.h>
#include <sys/filedesc.h>
#include <sys/jail.h>
#include <sys/kbio.h>
#include <sys/kernel.h>
#include <sys/ktr.h>
#include <sys/sysctl.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/kbio.h>
#include <sys/resourcevar.h>
#include <sys/jail.h>
#include <uuid/uuid.h>
#include <sys/stat.h>
#include <sys/sx.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <limits.h>
#include <machine/rtems-bsd-page.h>
#include <machine/rtems-bsd-thread.h>
#include <dev/kbd/kbdreg.h>
#include <net80211/ieee80211_freebsd.h>
#include <limits.h>
#include <rtems/bsd/bsd.h>
#include <rtems/libio_.h>
#include <rtems/malloc.h>
#include <uuid/uuid.h>
SYSINIT_REFERENCE(configure1);
SYSINIT_REFERENCE(module);
@@ -98,25 +105,47 @@ sbintime_t sbt_timethreshold;
sbintime_t sbt_tickthreshold;
struct bintime tc_tick_bt;
sbintime_t tc_tick_sbt;
int maxproc;
int tc_precexp;
int maxproc;
int maxfiles;
int maxfilesperproc;
int ngroups_max;
int unmapped_buf_allowed;
caddr_t unmapped_base;
long maxbcache;
int bio_transient_maxcnt;
struct sx allproc_lock;
struct vmem *rtems_bsd_transient_arena;
int nbuf; /* The number of buffer headers */
int nswbuf; /* Number of swap I/O buffer headers. */
void (*nlminfo_release_p)(struct proc *p);
struct sysentvec rtems_sysvec;
static SYSCTL_NODE(_kern, OID_AUTO, smp, CTLFLAG_RD|CTLFLAG_CAPRD, NULL,
"Kernel SMP");
static SYSCTL_NODE(
_kern, OID_AUTO, smp, CTLFLAG_RD | CTLFLAG_CAPRD, NULL, "Kernel SMP");
static int maxid_maxcpus;
SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD|CTLFLAG_CAPRD,
SYSCTL_INT(_kern_smp, OID_AUTO, maxid, CTLFLAG_RD | CTLFLAG_CAPRD,
&maxid_maxcpus, 0, "Max CPU ID.");
SYSCTL_INT(_kern_smp, OID_AUTO, maxcpus, CTLFLAG_RD|CTLFLAG_CAPRD,
SYSCTL_INT(_kern_smp, OID_AUTO, maxcpus, CTLFLAG_RD | CTLFLAG_CAPRD,
&maxid_maxcpus, 0, "Max number of CPUs that the system was compiled for.");
static void
cpu_startup(void *dummy)
{
kern_vfs_bio_buffer_alloc(unmapped_base, maxbcache);
bufinit();
vm_pager_bufferinit();
}
SYSINIT(cpu, SI_SUB_CPU, SI_ORDER_FIRST, cpu_startup, NULL);
/*
* Create a single process. RTEMS is a single address, single process OS.
*/
static void
proc0_init(void* dummy)
proc0_init(void *dummy)
{
struct proc *p = &proc0;
struct ucred *newcred;
@@ -127,7 +156,7 @@ proc0_init(void* dummy)
newcred = crget();
newcred->cr_uid = 0;
newcred->cr_ruid = 0;
newcred->cr_ngroups = 1; /* group 0 */
newcred->cr_ngroups = 1; /* group 0 */
newcred->cr_groups[0] = 0;
newcred->cr_rgid = 0;
tmpuinfo.ui_uid = 1;
@@ -137,8 +166,15 @@ proc0_init(void* dummy)
newcred->cr_ruidinfo = uifind(0);
p->p_ucred = newcred;
p->p_pid = getpid();
p->p_fd = NULL;
p->p_fd = fdinit(NULL, false);
p->p_fdtol = NULL;
rtems_sysvec.sv_flags = SV_ABI_FREEBSD;
#ifdef __LP64__
rtems_sysvec.sv_flags |= SV_LP64;
#else
rtems_sysvec.sv_flags |= SV_ILP32;
#endif
p->p_sysent = &rtems_sysvec;
uuid_generate(uuid);
uuid_unparse(uuid, prison0.pr_hostuuid);
}
@@ -170,17 +206,27 @@ rtems_bsd_initialize(void)
bt_tickthreshold = bt_timethreshold;
sbt_timethreshold = bttosbt(bt_timethreshold);
sbt_tickthreshold = bttosbt(bt_tickthreshold);
maxid_maxcpus = (int) rtems_scheduler_get_processor_maximum();
maxid_maxcpus = (int)rtems_scheduler_get_processor_maximum();
bio_transient_maxcnt = 1024;
sx_init(&allproc_lock, "allproc");
maxfiles = rtems_libio_number_iops;
maxfilesperproc = maxfiles;
maxproc = 16;
ngroups_max = 4;
maxbcache = rtems_bsd_get_allocator_domain_size(
RTEMS_BSD_ALLOCATOR_DOMAIN_BIO);
unmapped_base = (caddr_t)rtems_heap_allocate_aligned_with_boundary(
maxbcache, CACHE_LINE_SIZE, 0);
if (unmapped_base == NULL) {
return RTEMS_UNSATISFIED;
}
mkdir("/etc", S_IRWXU | S_IRWXG | S_IRWXO);
sc = rtems_timer_initiate_server(
rtems_bsd_get_task_priority(name),
rtems_bsd_get_task_stack_size(name),
RTEMS_DEFAULT_ATTRIBUTES
);
sc = rtems_timer_initiate_server(rtems_bsd_get_task_priority(name),
rtems_bsd_get_task_stack_size(name), RTEMS_DEFAULT_ATTRIBUTES);
if (sc != RTEMS_SUCCESSFUL) {
return RTEMS_UNSATISFIED;
}
@@ -191,7 +237,8 @@ rtems_bsd_initialize(void)
#ifdef KTR
ktr_verbose = 10;
ktr_mask = KTR_ALL;
ktr_mask = KTR_GEN | KTR_LOCK | KTR_VFS | KTR_VOP | KTR_BUF | KTR_MALLOC | KTR_SYSC | KTR_RUNQ;
ktr_mask = KTR_GEN | KTR_LOCK | KTR_VFS | KTR_VOP | KTR_BUF |
KTR_MALLOC | KTR_SYSC | KTR_RUNQ;
#endif
return RTEMS_SUCCESSFUL;