Changes to make openzfs build within FreeBSD buildworld

A collection of header changes to enable FreeBSD to build
with vendored OpenZFS.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #10635

include/os/freebsd/spl/sys/byteorder.h

@@ -84,9 +84,23 @@
 #define	htonll(x)	BMASK_64(x)
 #define	ntohll(x)	BMASK_64(x)
 #else
+#ifndef __LP64__
+static __inline__ uint64_t
+htonll(uint64_t n)
+{
+	return ((((uint64_t)htonl(n)) << 32) + htonl(n >> 32));
+}
+
+static __inline__ uint64_t
+ntohll(uint64_t n)
+{
+	return ((((uint64_t)ntohl(n)) << 32) + ntohl(n >> 32));
+}
+#else
 #define	htonll(x)	BSWAP_64(x)
 #define	ntohll(x)	BSWAP_64(x)
 #endif
+#endif
 
 #define	BE_IN32(xa)	htonl(*((uint32_t *)(void *)(xa)))
 

include/os/freebsd/spl/sys/ccompile.h

@@ -202,11 +202,14 @@ typedef int enum_t;
 #define	ENODATA EINVAL
 
 
-#define	__XSI_VISIBLE 1000
 #define	__BSD_VISIBLE 1
+#ifndef	IN_BASE
 #define	__POSIX_VISIBLE 201808
+#define	__XSI_VISIBLE 1000
+#endif
 #define	ARRAY_SIZE(a) (sizeof (a) / sizeof (a[0]))
 #define	open64 open
+#define	mmap64 mmap
 #define	pwrite64 pwrite
 #define	ftruncate64 ftruncate
 #define	lseek64 lseek
@@ -257,7 +260,9 @@ typedef int enum_t;
 
 #define	DIV_ROUND_UP(n, d)	(((n) + (d) - 1) / (d))
 #define	RLIM64_INFINITY RLIM_INFINITY
+#ifndef HAVE_ERESTART
 #define	ERESTART EAGAIN
+#endif
 #define	ABS(a)	((a) < 0 ? -(a) : (a))
 
 #endif

include/os/freebsd/spl/sys/kmem.h

@@ -32,7 +32,7 @@
 #include <sys/param.h>
 #include <sys/malloc.h>
 #include <sys/vmem.h>
-#include <sys/vmmeter.h>
+#include <sys/counter.h>
 
 #include <vm/uma.h>
 #include <vm/vm.h>

include/os/freebsd/spl/sys/simd_x86.h

@@ -29,7 +29,11 @@
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <sys/systm.h>
+#ifdef __i386__
+#include <x86/fpu.h>
+#else
 #include <machine/fpu.h>
+#endif
 #include <x86/x86_var.h>
 #include <x86/specialreg.h>
 

include/os/freebsd/spl/sys/types.h

@@ -73,7 +73,7 @@ typedef off_t		off64_t;
 typedef id_t		taskid_t;
 typedef id_t		projid_t;
 typedef id_t		poolid_t;
-typedef id_t		zoneid_t;
+typedef uint_t		zoneid_t;
 typedef id_t		ctid_t;
 typedef	mode_t		o_mode_t;
 typedef	uint64_t	pgcnt_t;

include/os/freebsd/spl/sys/vnode.h

@@ -49,7 +49,9 @@ enum symfollow { NO_FOLLOW = NOFOLLOW };
 
 #include <sys/proc.h>
 #include <sys/vnode_impl.h>
+#ifndef IN_BASE
 #include_next <sys/vnode.h>
+#endif
 #include <sys/mount.h>
 #include <sys/cred.h>
 #include <sys/fcntl.h>
@@ -70,11 +72,14 @@ typedef	struct vop_vector	vnodeops_t;
 
 #define	rootvfs		(rootvnode == NULL ? NULL : rootvnode->v_mount)
 
+
+#ifndef IN_BASE
 static __inline int
 vn_is_readonly(vnode_t *vp)
 {
 	return (vp->v_mount->mnt_flag & MNT_RDONLY);
 }
+#endif
 #define	vn_vfswlock(vp)		(0)
 #define	vn_vfsunlock(vp)	do { } while (0)
 #define	vn_ismntpt(vp)	   \
@@ -166,6 +171,7 @@ vn_is_readonly(vnode_t *vp)
 #define	AT_NOSET	(AT_NLINK|AT_RDEV|AT_FSID|AT_NODEID|\
 			AT_BLKSIZE|AT_NBLOCKS|AT_SEQ)
 
+#ifndef IN_BASE
 static __inline void
 vattr_init_mask(vattr_t *vap)
 {
@@ -187,6 +193,7 @@ vattr_init_mask(vattr_t *vap)
 	if (vap->va_flags != VNOVAL)
 		vap->va_mask |= AT_XVATTR;
 }
+#endif
 
 #define		RLIM64_INFINITY 0
 

include/os/freebsd/zfs/sys/sha2.h

@@ -116,7 +116,7 @@ SHA2Init(uint64_t mech, SHA2_CTX *c)
 			SHA512_256_Init(&c->SHA512_ctx);
 			break;
 		default:
-			panic("unknown mechanism %lu", mech);
+			panic("unknown mechanism %ju", (uintmax_t)mech);
 	}
 	c->algotype = (uint32_t)mech;
 }

include/os/freebsd/zfs/sys/zfs_context_os.h

@@ -88,8 +88,4 @@ typedef int fstrans_cookie_t;
 typedef struct opensolaris_utsname	utsname_t;
 extern utsname_t *utsname(void);
 extern int spa_import_rootpool(const char *name);
-#else
-#if BYTE_ORDER != BIG_ENDIAN
-#undef _BIG_ENDIAN
-#endif
 #endif