Remove make preinstall

A speciality of the RTEMS build system was the make preinstall step.  It
copied header files from arbitrary locations into the build tree.  The
header files were included via the -Bsome/build/tree/path GCC command
line option.

This has at least seven problems:

* The make preinstall step itself needs time and disk space.

* Errors in header files show up in the build tree copy.  This makes it
  hard for editors to open the right file to fix the error.

* There is no clear relationship between source and build tree header
  files.  This makes an audit of the build process difficult.

* The visibility of all header files in the build tree makes it
  difficult to enforce API barriers.  For example it is discouraged to
  use BSP-specifics in the cpukit.

* An introduction of a new build system is difficult.

* Include paths specified by the -B option are system headers.  This
  may suppress warnings.

* The parallel build had sporadic failures on some hosts.

This patch removes the make preinstall step.   All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc.  Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.

The new cpukit include directories are:

* cpukit/include

* cpukit/score/cpu/@RTEMS_CPU@/include

* cpukit/libnetworking

The new BSP include directories are:

* bsps/include

* bsps/@RTEMS_CPU@/include

* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include

There are build tree include directories for generated files.

The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.

The "bootstrap -p" option was removed.  The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.

Update #3254.

1 files changed, 303 insertions, 0 deletions

diff --git a/cpukit/include/sys/event.h b/cpukit/include/sys/event.h
new file mode 100644
index 0000000000..bc18aa90ea
--- /dev/null
+++ b/cpukit/include/sys/event.h
@@ -0,0 +1,303 @@
+/*-
+ * Copyright (c) 1999,2000,2001 Jonathan Lemon <jlemon@FreeBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: head/sys/sys/event.h 313704 2017-02-13 19:00:09Z ed $
+ */
+
+#ifndef _SYS_EVENT_H_
+#define _SYS_EVENT_H_
+
+#include <sys/_types.h>
+#include <sys/queue.h>
+
+#define EVFILT_READ		(-1)
+#define EVFILT_WRITE		(-2)
+#define EVFILT_AIO		(-3)	/* attached to aio requests */
+#define EVFILT_VNODE		(-4)	/* attached to vnodes */
+#define EVFILT_PROC		(-5)	/* attached to struct proc */
+#define EVFILT_SIGNAL		(-6)	/* attached to struct proc */
+#define EVFILT_TIMER		(-7)	/* timers */
+#define EVFILT_PROCDESC		(-8)	/* attached to process descriptors */
+#define EVFILT_FS		(-9)	/* filesystem events */
+#define EVFILT_LIO		(-10)	/* attached to lio requests */
+#define EVFILT_USER		(-11)	/* User events */
+#define EVFILT_SENDFILE		(-12)	/* attached to sendfile requests */
+#define EVFILT_EMPTY		(-13)	/* empty send socket buf */
+#define EVFILT_SYSCOUNT		13
+
+#define EV_SET(kevp_, a, b, c, d, e, f) do {	\
+	struct kevent *kevp = (kevp_);		\
+	(kevp)->ident = (a);			\
+	(kevp)->filter = (b);			\
+	(kevp)->flags = (c);			\
+	(kevp)->fflags = (d);			\
+	(kevp)->data = (e);			\
+	(kevp)->udata = (f);			\
+} while(0)
+
+struct kevent {
+	__uintptr_t	ident;		/* identifier for this event */
+	short		filter;		/* filter for event */
+	unsigned short	flags;
+	unsigned int	fflags;
+	__intptr_t	data;
+	void		*udata;		/* opaque user data identifier */
+};
+
+/* actions */
+#define EV_ADD		0x0001		/* add event to kq (implies enable) */
+#define EV_DELETE	0x0002		/* delete event from kq */
+#define EV_ENABLE	0x0004		/* enable event */
+#define EV_DISABLE	0x0008		/* disable event (not reported) */
+#define EV_FORCEONESHOT	0x0100		/* enable _ONESHOT and force trigger */
+
+/* flags */
+#define EV_ONESHOT	0x0010		/* only report one occurrence */
+#define EV_CLEAR	0x0020		/* clear event state after reporting */
+#define EV_RECEIPT	0x0040		/* force EV_ERROR on success, data=0 */
+#define EV_DISPATCH	0x0080		/* disable event after reporting */
+
+#define EV_SYSFLAGS	0xF000		/* reserved by system */
+#define	EV_DROP		0x1000		/* note should be dropped */
+#define EV_FLAG1	0x2000		/* filter-specific flag */
+#define EV_FLAG2	0x4000		/* filter-specific flag */
+
+/* returned values */
+#define EV_EOF		0x8000		/* EOF detected */
+#define EV_ERROR	0x4000		/* error, data contains errno */
+
+ /*
+  * data/hint flags/masks for EVFILT_USER, shared with userspace
+  *
+  * On input, the top two bits of fflags specifies how the lower twenty four
+  * bits should be applied to the stored value of fflags.
+  *
+  * On output, the top two bits will always be set to NOTE_FFNOP and the
+  * remaining twenty four bits will contain the stored fflags value.
+  */
+#define NOTE_FFNOP	0x00000000		/* ignore input fflags */
+#define NOTE_FFAND	0x40000000		/* AND fflags */
+#define NOTE_FFOR	0x80000000		/* OR fflags */
+#define NOTE_FFCOPY	0xc0000000		/* copy fflags */
+#define NOTE_FFCTRLMASK	0xc0000000		/* masks for operations */
+#define NOTE_FFLAGSMASK	0x00ffffff
+
+#define NOTE_TRIGGER	0x01000000		/* Cause the event to be
+						   triggered for output. */
+
+/*
+ * data/hint flags for EVFILT_{READ|WRITE}, shared with userspace
+ */
+#define NOTE_LOWAT	0x0001			/* low water mark */
+#define NOTE_FILE_POLL	0x0002			/* behave like poll() */
+
+/*
+ * data/hint flags for EVFILT_VNODE, shared with userspace
+ */
+#define	NOTE_DELETE	0x0001			/* vnode was removed */
+#define	NOTE_WRITE	0x0002			/* data contents changed */
+#define	NOTE_EXTEND	0x0004			/* size increased */
+#define	NOTE_ATTRIB	0x0008			/* attributes changed */
+#define	NOTE_LINK	0x0010			/* link count changed */
+#define	NOTE_RENAME	0x0020			/* vnode was renamed */
+#define	NOTE_REVOKE	0x0040			/* vnode access was revoked */
+#define	NOTE_OPEN	0x0080			/* vnode was opened */
+#define	NOTE_CLOSE	0x0100			/* file closed, fd did not
+						   allowed write */
+#define	NOTE_CLOSE_WRITE 0x0200			/* file closed, fd did allowed
+						   write */
+#define	NOTE_READ	0x0400			/* file was read */
+
+/*
+ * data/hint flags for EVFILT_PROC and EVFILT_PROCDESC, shared with userspace
+ */
+#define	NOTE_EXIT	0x80000000		/* process exited */
+#define	NOTE_FORK	0x40000000		/* process forked */
+#define	NOTE_EXEC	0x20000000		/* process exec'd */
+#define	NOTE_PCTRLMASK	0xf0000000		/* mask for hint bits */
+#define	NOTE_PDATAMASK	0x000fffff		/* mask for pid */
+
+/* additional flags for EVFILT_PROC */
+#define	NOTE_TRACK	0x00000001		/* follow across forks */
+#define	NOTE_TRACKERR	0x00000002		/* could not track child */
+#define	NOTE_CHILD	0x00000004		/* am a child process */
+
+/* additional flags for EVFILT_TIMER */
+#define NOTE_SECONDS		0x00000001	/* data is seconds */
+#define NOTE_MSECONDS		0x00000002	/* data is milliseconds */
+#define NOTE_USECONDS		0x00000004	/* data is microseconds */
+#define NOTE_NSECONDS		0x00000008	/* data is nanoseconds */
+
+struct knote;
+SLIST_HEAD(klist, knote);
+struct kqueue;
+TAILQ_HEAD(kqlist, kqueue);
+struct knlist {
+	struct	klist	kl_list;
+	void    (*kl_lock)(void *);	/* lock function */
+	void    (*kl_unlock)(void *);
+	void	(*kl_assert_locked)(void *);
+	void	(*kl_assert_unlocked)(void *);
+	void	*kl_lockarg;		/* argument passed to lock functions */
+	int	kl_autodestroy;
+};
+
+
+#ifdef _KERNEL
+
+/*
+ * Flags for knote call
+ */
+#define	KNF_LISTLOCKED	0x0001			/* knlist is locked */
+#define	KNF_NOKQLOCK	0x0002			/* do not keep KQ_LOCK */
+
+#define KNOTE(list, hist, flags)	knote(list, hist, flags)
+#define KNOTE_LOCKED(list, hint)	knote(list, hint, KNF_LISTLOCKED)
+#define KNOTE_UNLOCKED(list, hint)	knote(list, hint, 0)
+
+#define	KNLIST_EMPTY(list)		SLIST_EMPTY(&(list)->kl_list)
+
+/*
+ * Flag indicating hint is a signal.  Used by EVFILT_SIGNAL, and also
+ * shared by EVFILT_PROC  (all knotes attached to p->p_klist)
+ */
+#define NOTE_SIGNAL	0x08000000
+
+/*
+ * Hint values for the optional f_touch event filter.  If f_touch is not set 
+ * to NULL and f_isfd is zero the f_touch filter will be called with the type
+ * argument set to EVENT_REGISTER during a kevent() system call.  It is also
+ * called under the same conditions with the type argument set to EVENT_PROCESS
+ * when the event has been triggered.
+ */
+#define EVENT_REGISTER	1
+#define EVENT_PROCESS	2
+
+struct filterops {
+	int	f_isfd;		/* true if ident == filedescriptor */
+	int	(*f_attach)(struct knote *kn);
+	void	(*f_detach)(struct knote *kn);
+	int	(*f_event)(struct knote *kn, long hint);
+	void	(*f_touch)(struct knote *kn, struct kevent *kev, u_long type);
+};
+
+/*
+ * An in-flux knote cannot be dropped from its kq while the kq is
+ * unlocked.  If the KN_SCAN flag is not set, a thread can only set
+ * kn_influx when it is exclusive owner of the knote state, and can
+ * modify kn_status as if it had the KQ lock.  KN_SCAN must not be set
+ * on a knote which is already in flux.
+ *
+ * kn_sfflags, kn_sdata, and kn_kevent are protected by the knlist lock.
+ */
+struct knote {
+	SLIST_ENTRY(knote)	kn_link;	/* for kq */
+	SLIST_ENTRY(knote)	kn_selnext;	/* for struct selinfo */
+	struct			knlist *kn_knlist;	/* f_attach populated */
+	TAILQ_ENTRY(knote)	kn_tqe;
+	struct			kqueue *kn_kq;	/* which queue we are on */
+	struct 			kevent kn_kevent;
+	void			*kn_hook;
+	int			kn_hookid;
+	int			kn_status;	/* protected by kq lock */
+#define KN_ACTIVE	0x01			/* event has been triggered */
+#define KN_QUEUED	0x02			/* event is on queue */
+#define KN_DISABLED	0x04			/* event is disabled */
+#define KN_DETACHED	0x08			/* knote is detached */
+#define KN_MARKER	0x20			/* ignore this knote */
+#define KN_KQUEUE	0x40			/* this knote belongs to a kq */
+#define KN_HASKQLOCK	0x80			/* for _inevent */
+#define	KN_SCAN		0x100			/* flux set in kqueue_scan() */
+	int			kn_influx;
+	int			kn_sfflags;	/* saved filter flags */
+	intptr_t		kn_sdata;	/* saved data field */
+	union {
+		struct		file *p_fp;	/* file data pointer */
+		struct		proc *p_proc;	/* proc pointer */
+		struct		kaiocb *p_aio;	/* AIO job pointer */
+		struct		aioliojob *p_lio;	/* LIO job pointer */
+		void		*p_v;		/* generic other pointer */
+	} kn_ptr;
+	struct			filterops *kn_fop;
+
+#define kn_id		kn_kevent.ident
+#define kn_filter	kn_kevent.filter
+#define kn_flags	kn_kevent.flags
+#define kn_fflags	kn_kevent.fflags
+#define kn_data		kn_kevent.data
+#define kn_fp		kn_ptr.p_fp
+};
+struct kevent_copyops {
+	void	*arg;
+	int	(*k_copyout)(void *arg, struct kevent *kevp, int count);
+	int	(*k_copyin)(void *arg, struct kevent *kevp, int count);
+};
+
+struct thread;
+struct proc;
+struct knlist;
+struct mtx;
+struct rwlock;
+
+void	knote(struct knlist *list, long hint, int lockflags);
+void	knote_fork(struct knlist *list, int pid);
+struct knlist *knlist_alloc(struct mtx *lock);
+void	knlist_detach(struct knlist *knl);
+void	knlist_add(struct knlist *knl, struct knote *kn, int islocked);
+void	knlist_remove(struct knlist *knl, struct knote *kn, int islocked);
+int	knlist_empty(struct knlist *knl);
+void	knlist_init(struct knlist *knl, void *lock, void (*kl_lock)(void *),
+	    void (*kl_unlock)(void *), void (*kl_assert_locked)(void *),
+	    void (*kl_assert_unlocked)(void *));
+void	knlist_init_mtx(struct knlist *knl, struct mtx *lock);
+void	knlist_init_rw_reader(struct knlist *knl, struct rwlock *lock);
+void	knlist_destroy(struct knlist *knl);
+void	knlist_cleardel(struct knlist *knl, struct thread *td,
+	    int islocked, int killkn);
+#define knlist_clear(knl, islocked)				\
+	knlist_cleardel((knl), NULL, (islocked), 0)
+#define knlist_delete(knl, td, islocked)			\
+	knlist_cleardel((knl), (td), (islocked), 1)
+void	knote_fdclose(struct thread *p, int fd);
+int 	kqfd_register(int fd, struct kevent *kev, struct thread *p,
+	    int waitok);
+int	kqueue_add_filteropts(int filt, struct filterops *filtops);
+int	kqueue_del_filteropts(int filt);
+
+#else 	/* !_KERNEL */
+
+#include <sys/cdefs.h>
+struct timespec;
+
+__BEGIN_DECLS
+int     kqueue(void);
+int     kevent(int kq, const struct kevent *changelist, int nchanges,
+	    struct kevent *eventlist, int nevents,
+	    const struct timespec *timeout);
+__END_DECLS
+
+#endif /* !_KERNEL */
+
+#endif /* !_SYS_EVENT_H_ */