[PATCH 4/7] Updating FREEBSD for tty support
Kevin Kirspel
kevin-kirspel at idexx.com
Thu Apr 6 01:11:15 UTC 2017
---
freebsd/sys/fs/devfs/devfs_int.h | 2 +-
freebsd/sys/kern/kern_conf.c | 16 ++++------
freebsd/sys/kern/subr_taskqueue.c | 10 -------
freebsd/sys/kern/tty.c | 62 +++++++++++++++++++++++++++++++++++++++
freebsd/sys/kern/tty_ttydisc.c | 2 ++
freebsd/sys/sys/conf.h | 2 ++
freebsd/sys/sys/file.h | 4 +++
freebsd/sys/sys/proc.h | 2 ++
8 files changed, 79 insertions(+), 21 deletions(-)
diff --git a/freebsd/sys/fs/devfs/devfs_int.h b/freebsd/sys/fs/devfs/devfs_int.h
index 670aba1..9e16b40 100644
--- a/freebsd/sys/fs/devfs/devfs_int.h
+++ b/freebsd/sys/fs/devfs/devfs_int.h
@@ -63,13 +63,13 @@ struct cdev_priv {
u_int cdp_maxdirent;
struct devfs_dirent **cdp_dirents;
struct devfs_dirent *cdp_dirent0;
+#endif /* __rtems__ */
TAILQ_ENTRY(cdev_priv) cdp_dtr_list;
void (*cdp_dtr_cb)(void *);
void *cdp_dtr_cb_arg;
LIST_HEAD(, cdev_privdata) cdp_fdpriv;
-#endif /* __rtems__ */
};
#define cdev2priv(c) __containerof(c, struct cdev_priv, cdp_c)
diff --git a/freebsd/sys/kern/kern_conf.c b/freebsd/sys/kern/kern_conf.c
index fb43c24..20f2e2c 100644
--- a/freebsd/sys/kern/kern_conf.c
+++ b/freebsd/sys/kern/kern_conf.c
@@ -59,11 +59,9 @@ static MALLOC_DEFINE(M_DEVT, "cdev", "cdev storage");
struct mtx devmtx;
static void destroy_devl(struct cdev *dev);
-#ifndef __rtems__
static int destroy_dev_sched_cbl(struct cdev *dev,
void (*cb)(void *), void *arg);
static void destroy_dev_tq(void *ctx, int pending);
-#endif /* __rtems__ */
static int make_dev_credv(int flags, struct cdev **dres, struct cdevsw *devsw,
int unit, struct ucred *cr, uid_t uid, gid_t gid, int mode, const char *fmt,
va_list ap);
@@ -164,7 +162,6 @@ dev_refl(struct cdev *dev)
dev->si_refcount++;
}
-#ifndef __rtems__
void
dev_rel(struct cdev *dev)
{
@@ -189,7 +186,6 @@ dev_rel(struct cdev *dev)
if (flag)
devfs_free(dev);
}
-#endif /* __rtems__ */
struct cdevsw *
dev_refthread(struct cdev *dev, int *ref)
@@ -971,6 +967,7 @@ make_dev_p(int flags, struct cdev **cdev, struct cdevsw *devsw,
("make_dev_p: failed make_dev_credv (error=%d)", res));
return (res);
}
+#endif /* __rtems__ */
static void
dev_dependsl(struct cdev *pdev, struct cdev *cdev)
@@ -1050,6 +1047,7 @@ make_dev_alias(struct cdev *pdev, const char *fmt, ...)
return (dev);
}
+#ifndef __rtems__
int
make_dev_alias_p(int flags, struct cdev **cdev, struct cdev *pdev,
const char *fmt, ...)
@@ -1156,7 +1154,6 @@ destroy_devl(struct cdev *dev)
/* Remove name marking */
dev->si_flags &= ~SI_NAMED;
-#ifndef __rtems__
/* If we are a child, remove us from the parents list */
if (dev->si_flags & SI_CHILD) {
LIST_REMOVE(dev, si_siblings);
@@ -1167,6 +1164,7 @@ destroy_devl(struct cdev *dev)
while (!LIST_EMPTY(&dev->si_children))
destroy_devl(LIST_FIRST(&dev->si_children));
+#ifndef __rtems__
/* Remove from clone list */
if (dev->si_flags & SI_CLONELIST) {
LIST_REMOVE(dev, si_clone);
@@ -1195,14 +1193,12 @@ destroy_devl(struct cdev *dev)
/* avoid out of order notify events */
notify_destroy(dev);
}
-#ifndef __rtems__
mtx_lock(&cdevpriv_mtx);
while ((p = LIST_FIRST(&cdp->cdp_fdpriv)) != NULL) {
devfs_destroy_cdevpriv(p);
mtx_lock(&cdevpriv_mtx);
}
mtx_unlock(&cdevpriv_mtx);
-#endif /* __rtems__ */
dev_lock();
dev->si_drv1 = 0;
@@ -1231,7 +1227,6 @@ destroy_devl(struct cdev *dev)
dev_free_devlocked(dev);
}
-#ifndef __rtems__
static void
delist_dev_locked(struct cdev *dev)
{
@@ -1270,7 +1265,6 @@ delist_dev(struct cdev *dev)
delist_dev_locked(dev);
dev_unlock();
}
-#endif /* __rtems__ */
void
destroy_dev(struct cdev *dev)
@@ -1282,7 +1276,6 @@ destroy_dev(struct cdev *dev)
dev_unlock_and_free();
}
-#ifndef __rtems__
const char *
devtoname(struct cdev *dev)
{
@@ -1290,6 +1283,7 @@ devtoname(struct cdev *dev)
return (dev->si_name);
}
+#ifndef __rtems__
int
dev_stdclone(char *name, char **namep, const char *stem, int *unit)
{
@@ -1464,6 +1458,7 @@ clone_cleanup(struct clonedevs **cdp)
free(cd, M_DEVBUF);
*cdp = NULL;
}
+#endif /* __rtems__ */
static TAILQ_HEAD(, cdev_priv) dev_ddtr =
TAILQ_HEAD_INITIALIZER(dev_ddtr);
@@ -1536,6 +1531,7 @@ destroy_dev_sched(struct cdev *dev)
return (destroy_dev_sched_cb(dev, NULL, NULL));
}
+#ifndef __rtems__
void
destroy_dev_drain(struct cdevsw *csw)
{
diff --git a/freebsd/sys/kern/subr_taskqueue.c b/freebsd/sys/kern/subr_taskqueue.c
index c739ccf..c394869 100644
--- a/freebsd/sys/kern/subr_taskqueue.c
+++ b/freebsd/sys/kern/subr_taskqueue.c
@@ -49,15 +49,11 @@ __FBSDID("$FreeBSD$");
#include <machine/stdarg.h>
static MALLOC_DEFINE(M_TASKQUEUE, "taskqueue", "Task Queues");
-#ifndef __rtems__
static void *taskqueue_giant_ih;
-#endif /* __rtems__ */
static void *taskqueue_ih;
static void taskqueue_fast_enqueue(void *);
static void taskqueue_swi_enqueue(void *);
-#ifndef __rtems__
static void taskqueue_swi_giant_enqueue(void *);
-#endif /* __rtems__ */
struct taskqueue_busy {
struct task *tb_running;
@@ -182,9 +178,7 @@ _taskqueue_create(const char *name, int mflags,
queue->tq_flags |= TQ_FLAGS_ACTIVE;
if (enqueue == taskqueue_fast_enqueue ||
enqueue == taskqueue_swi_enqueue ||
-#ifndef __rtems__
enqueue == taskqueue_swi_giant_enqueue ||
-#endif /* __rtems__ */
enqueue == taskqueue_thread_enqueue)
queue->tq_flags |= TQ_FLAGS_UNLOCKED_ENQUEUE;
mtx_init(&queue->tq_mutex, tq_name, NULL, mtxflags);
@@ -652,7 +646,6 @@ taskqueue_swi_run(void *dummy)
taskqueue_run(taskqueue_swi);
}
-#ifndef __rtems__
static void
taskqueue_swi_giant_enqueue(void *context)
{
@@ -664,7 +657,6 @@ taskqueue_swi_giant_run(void *dummy)
{
taskqueue_run(taskqueue_swi_giant);
}
-#endif /* __rtems__ */
static int
_taskqueue_start_threads(struct taskqueue **tqp, int count, int pri,
@@ -829,11 +821,9 @@ TASKQUEUE_DEFINE(swi, taskqueue_swi_enqueue, NULL,
swi_add(NULL, "task queue", taskqueue_swi_run, NULL, SWI_TQ,
INTR_MPSAFE, &taskqueue_ih));
-#ifndef __rtems__
TASKQUEUE_DEFINE(swi_giant, taskqueue_swi_giant_enqueue, NULL,
swi_add(NULL, "Giant taskq", taskqueue_swi_giant_run,
NULL, SWI_TQ_GIANT, 0, &taskqueue_giant_ih));
-#endif /* __rtems__ */
TASKQUEUE_DEFINE_THREAD(thread);
diff --git a/freebsd/sys/kern/tty.c b/freebsd/sys/kern/tty.c
index 95afaeb..5972e32 100644
--- a/freebsd/sys/kern/tty.c
+++ b/freebsd/sys/kern/tty.c
@@ -235,9 +235,11 @@ ttydev_leave(struct tty *tp)
/* Stop asynchronous I/O. */
funsetown(&tp->t_sigio);
+#ifndef __rtems__
/* Remove console TTY. */
if (constty == tp)
constty_clear();
+#endif /* __rtems__ */
/* Drain any output. */
if (!tty_gone(tp))
@@ -388,9 +390,11 @@ ttydev_close(struct cdev *dev, int fflag, int devtype __unused,
return (0);
}
+#ifndef __rtems__
/* If revoking, flush output now to avoid draining it later. */
if (fflag & FREVOKE)
tty_flush(tp, FWRITE);
+#endif /* __rtems__ */
tp->t_flags &= ~TF_EXCLUDE;
@@ -405,6 +409,7 @@ ttydev_close(struct cdev *dev, int fflag, int devtype __unused,
return (0);
}
+#ifndef __rtems__
static __inline int
tty_is_ctty(struct tty *tp, struct proc *p)
{
@@ -413,10 +418,12 @@ tty_is_ctty(struct tty *tp, struct proc *p)
return (p->p_session == tp->t_session && p->p_flag & P_CONTROLT);
}
+#endif /* __rtems__ */
int
tty_wait_background(struct tty *tp, struct thread *td, int sig)
{
+#ifndef __rtems__
struct proc *p = td->td_proc;
struct pgrp *pg;
ksiginfo_t ksi;
@@ -475,6 +482,9 @@ tty_wait_background(struct tty *tp, struct thread *td, int sig)
if (error)
return (error);
}
+#else /* __rtems__ */
+ return (0);
+#endif /* __rtems__ */
}
static int
@@ -779,7 +789,9 @@ static struct cdevsw ttydev_cdevsw = {
.d_ioctl = ttydev_ioctl,
.d_kqfilter = ttydev_kqfilter,
.d_poll = ttydev_poll,
+#ifndef __rtems__
.d_mmap = ttydev_mmap,
+#endif /* __rtems__ */
.d_name = "ttydev",
.d_flags = D_TTY,
};
@@ -1189,6 +1201,7 @@ tty_rel_gone(struct tty *tp)
* Exposing information about current TTY's through sysctl
*/
+#ifndef __rtems__
static void
tty_to_xtty(struct tty *tp, struct xtty *xt)
{
@@ -1242,6 +1255,7 @@ sysctl_kern_ttys(SYSCTL_HANDLER_ARGS)
SYSCTL_PROC(_kern, OID_AUTO, ttys, CTLTYPE_OPAQUE|CTLFLAG_RD|CTLFLAG_MPSAFE,
0, 0, sysctl_kern_ttys, "S,xtty", "List of TTYs");
+#endif /* __rtems__ */
/*
* Device node creation. Device has been set up, now we can expose it to
@@ -1270,6 +1284,7 @@ tty_makedevf(struct tty *tp, struct ucred *cred, int flags,
vsnrprintf(name, sizeof name, 32, fmt, ap);
va_end(ap);
+#ifndef __rtems__
if (cred == NULL) {
/* System device. */
uid = UID_ROOT;
@@ -1281,6 +1296,11 @@ tty_makedevf(struct tty *tp, struct ucred *cred, int flags,
gid = GID_TTY;
mode = S_IRUSR|S_IWUSR|S_IWGRP;
}
+#else /* __rtems__ */
+ uid = BSD_DEFAULT_UID;
+ gid = BSD_DEFAULT_GID;
+ mode = S_IRUSR|S_IWUSR|S_IWGRP;
+#endif /* __rtems__ */
flags = flags & TTYMK_CLONING ? MAKEDEV_REF : 0;
flags |= MAKEDEV_CHECKNAME;
@@ -1391,12 +1411,14 @@ tty_signal_sessleader(struct tty *tp, int sig)
/* Make signals start output again. */
tp->t_flags &= ~TF_STOPPED;
+#ifndef __rtems__
if (tp->t_session != NULL && tp->t_session->s_leader != NULL) {
p = tp->t_session->s_leader;
PROC_LOCK(p);
kern_psignal(p, sig);
PROC_UNLOCK(p);
}
+#endif /* __rtems__ */
}
void
@@ -1410,6 +1432,7 @@ tty_signal_pgrp(struct tty *tp, int sig)
/* Make signals start output again. */
tp->t_flags &= ~TF_STOPPED;
+#ifndef __rtems__
if (sig == SIGINFO && !(tp->t_termios.c_lflag & NOKERNINFO))
tty_info(tp);
if (tp->t_pgrp != NULL) {
@@ -1420,6 +1443,7 @@ tty_signal_pgrp(struct tty *tp, int sig)
pgsignal(tp->t_pgrp, sig, 1, &ksi);
PGRP_UNLOCK(tp->t_pgrp);
}
+#endif /* __rtems__ */
}
void
@@ -1516,7 +1540,9 @@ tty_set_winsize(struct tty *tp, const struct winsize *wsz)
if (memcmp(&tp->t_winsize, wsz, sizeof(*wsz)) == 0)
return;
tp->t_winsize = *wsz;
+#ifndef __rtems__
tty_signal_pgrp(tp, SIGWINCH);
+#endif /* __rtems__ */
}
static int
@@ -1575,9 +1601,11 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
*(int *)data = ttyoutq_bytesused(&tp->t_outq);
return (0);
case FIOSETOWN:
+#ifndef __rtems__
if (tp->t_session != NULL && !tty_is_ctty(tp, td->td_proc))
/* Not allowed to set ownership. */
return (ENOTTY);
+#endif /* __rtems__ */
/* Temporarily unlock the TTY to set ownership. */
tty_unlock(tp);
@@ -1585,9 +1613,11 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
tty_lock(tp);
return (error);
case FIOGETOWN:
+#ifndef __rtems__
if (tp->t_session != NULL && !tty_is_ctty(tp, td->td_proc))
/* Not allowed to set ownership. */
return (ENOTTY);
+#endif /* __rtems__ */
/* Get ownership. */
*(int *)data = fgetown(&tp->t_sigio);
@@ -1684,6 +1714,7 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
*(int *)data = TTYDISC;
return (0);
case TIOCGPGRP:
+#ifndef __rtems__
if (!tty_is_ctty(tp, td->td_proc))
return (ENOTTY);
@@ -1691,15 +1722,23 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
*(int *)data = tp->t_pgrp->pg_id;
else
*(int *)data = NO_PID;
+#else /* __rtems__ */
+ *(int *)data = NO_PID;
+#endif /* __rtems__ */
return (0);
case TIOCGSID:
+#ifndef __rtems__
if (!tty_is_ctty(tp, td->td_proc))
return (ENOTTY);
MPASS(tp->t_session);
*(int *)data = tp->t_session->s_sid;
+#else /* __rtems__ */
+ *(int *)data = NO_PID;
+#endif /* __rtems__ */
return (0);
case TIOCSCTTY: {
+#ifndef __rtems__
struct proc *p = td->td_proc;
/* XXX: This looks awful. */
@@ -1748,10 +1787,12 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
PROC_LOCK(p);
p->p_flag |= P_CONTROLT;
PROC_UNLOCK(p);
+#endif /* __rtems__ */
return (0);
}
case TIOCSPGRP: {
+#ifndef __rtems__
struct pgrp *pg;
/*
@@ -1784,6 +1825,7 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
/* Wake up the background process groups. */
cv_broadcast(&tp->t_bgwait);
+#endif /* __rtems__ */
return (0);
}
case TIOCFLUSH: {
@@ -1808,6 +1850,7 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
tp->t_drainwait = *(int *)data;
return (error);
case TIOCCONS:
+#ifndef __rtems__
/* Set terminal as console TTY. */
if (*(int *)data) {
error = priv_check(td, PRIV_TTY_CONSOLE);
@@ -1830,6 +1873,7 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
} else if (constty == tp) {
constty_clear();
}
+#endif /* __rtems__ */
return (0);
case TIOCGWINSZ:
/* Obtain window size. */
@@ -1855,14 +1899,18 @@ tty_generic_ioctl(struct tty *tp, u_long cmd, void *data, int fflag,
ttydevsw_pktnotify(tp, TIOCPKT_START);
return (0);
case TIOCSTAT:
+#ifndef __rtems__
tty_info(tp);
+#endif /* __rtems__ */
return (0);
case TIOCSTI:
+#ifndef __rtems__
if ((fflag & FREAD) == 0 && priv_check(td, PRIV_TTY_STI))
return (EPERM);
if (!tty_is_ctty(tp, td->td_proc) &&
priv_check(td, PRIV_TTY_STI))
return (EACCES);
+#endif /* __rtems__ */
ttydisc_rint(tp, *(char *)data, 0);
ttydisc_rint_done(tp);
return (0);
@@ -1941,9 +1989,17 @@ tty_hiwat_in_unblock(struct tty *tp)
* Input flow control. Only leave the high watermark when we
* can successfully store the VSTART character.
*/
+#ifndef __rtems__
if (ttyoutq_write_nofrag(&tp->t_outq,
&tp->t_termios.c_cc[VSTART], 1) == 0)
tp->t_flags &= ~TF_HIWAT_IN;
+#else /* __rtems__ */
+ if (ttyoutq_write_nofrag(&tp->t_outq,
+ &tp->t_termios.c_cc[VSTART], 1) == 0) {
+ tp->t_flags &= ~TF_HIWAT_IN;
+ ttydevsw_outwakeup(tp);
+ }
+#endif /* __rtems__ */
} else {
/* No input flow control. */
tp->t_flags &= ~TF_HIWAT_IN;
@@ -1967,6 +2023,7 @@ ttyhook_defrint(struct tty *tp, char c, int flags)
return (0);
}
+#ifndef __rtems__
int
ttyhook_register(struct tty **rtp, struct proc *p, int fd, struct ttyhook *th,
void *softc)
@@ -2060,6 +2117,7 @@ ttyhook_unregister(struct tty *tp)
/* Maybe deallocate the TTY as well. */
tty_rel_free(tp);
}
+#endif /* __rtems__ */
/*
* /dev/console handling.
@@ -2114,11 +2172,14 @@ static struct cdevsw ttyconsdev_cdevsw = {
.d_ioctl = ttydev_ioctl,
.d_kqfilter = ttydev_kqfilter,
.d_poll = ttydev_poll,
+#ifndef __rtems__
.d_mmap = ttydev_mmap,
+#endif /* __rtems__ */
.d_name = "ttyconsdev",
.d_flags = D_TTY,
};
+#ifndef __rtems__
static void
ttyconsdev_init(void *unused __unused)
{
@@ -2135,6 +2196,7 @@ ttyconsdev_select(const char *name)
dev_console_filename = name;
}
+#endif /* __rtems__ */
/*
* Debugging routines.
diff --git a/freebsd/sys/kern/tty_ttydisc.c b/freebsd/sys/kern/tty_ttydisc.c
index edb1d15..2cdc332 100644
--- a/freebsd/sys/kern/tty_ttydisc.c
+++ b/freebsd/sys/kern/tty_ttydisc.c
@@ -914,7 +914,9 @@ ttydisc_rint(struct tty *tp, char c, int flags)
if (CMP_FLAG(l, ISIG)) {
if (CMP_FLAG(l, ICANON|IEXTEN) == (ICANON|IEXTEN)) {
if (CMP_CC(VSTATUS, c)) {
+#ifndef __rtems__
tty_signal_pgrp(tp, SIGINFO);
+#endif /* __rtems__ */
return (0);
}
}
diff --git a/freebsd/sys/sys/conf.h b/freebsd/sys/sys/conf.h
index 8d39c62..d5ced5c 100644
--- a/freebsd/sys/sys/conf.h
+++ b/freebsd/sys/sys/conf.h
@@ -84,9 +84,11 @@ struct cdev {
LIST_ENTRY(cdev) si_list;
#ifndef __rtems__
LIST_ENTRY(cdev) si_clone;
+#endif /* __rtems__ */
LIST_HEAD(, cdev) si_children;
LIST_ENTRY(cdev) si_siblings;
struct cdev *si_parent;
+#ifndef __rtems__
struct mount *si_mountpt;
#endif /* __rtems__ */
void *si_drv1, *si_drv2;
diff --git a/freebsd/sys/sys/file.h b/freebsd/sys/sys/file.h
index 092362b..8f91f52 100644
--- a/freebsd/sys/sys/file.h
+++ b/freebsd/sys/sys/file.h
@@ -199,6 +199,10 @@ struct file {
void *f_label; /* Place-holder for MAC label. */
#else /* __rtems__ */
rtems_libio_t f_io;
+ union {
+ struct cdev_privdata *fvn_cdevpriv;
+ /* (d) Private data for the cdev. */
+ } f_vnun;
#endif /* __rtems__ */
};
#ifdef __rtems__
diff --git a/freebsd/sys/sys/proc.h b/freebsd/sys/sys/proc.h
index 7af3dc2..2b58ffe 100644
--- a/freebsd/sys/sys/proc.h
+++ b/freebsd/sys/sys/proc.h
@@ -301,7 +301,9 @@ struct thread {
u_long td_profil_addr; /* (k) Temporary addr until AST. */
u_int td_profil_ticks; /* (k) Temporary ticks until AST. */
char td_name[MAXCOMLEN + 1]; /* (*) Thread name. */
+#endif /* __rtems__ */
struct file *td_fpop; /* (k) file referencing cdev under op */
+#ifndef __rtems__
int td_dbgflags; /* (c) Userland debugger flags */
siginfo_t td_si; /* (c) For debugger or core file */
int td_ng_outbound; /* (k) Thread entered ng from above. */
--
1.9.1
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