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authorJake Burkholder <jake@FreeBSD.org>2001-07-31 05:45:16 +0000
committerJake Burkholder <jake@FreeBSD.org>2001-07-31 05:45:16 +0000
commit98bb5304e12e75a43230c686a5c7cb422d8f780d (patch)
treed0d27ae055cda21943a83b39f6c76f563b021536 /sys/sparc64/include/endian.h
parent7ddbe3a0c08b696f9796752858b86f58c7f8869e (diff)
downloadsrc-98bb5304e12e75a43230c686a5c7cb422d8f780d.tar.gz
src-98bb5304e12e75a43230c686a5c7cb422d8f780d.zip
Add skeleton machine dependent headers and c files for a port of freebsd
to a new architecture. This is the base of the sparc64 port, but contains limited machine dependent code, and can be used a base for ports. Included are: - standard machine dependent headers, tweaked for a 64 bit, big endian architecture, including empty versions of all the machine dependent structures - a machine independent atomic.h, which can be used until a port has support for interrupts and the operations really need to be atomic - stub versions of all the machine dependent functions, which panic when called and print out the name of the function that needs to be implemented. functions which are normally in assembly files are not included, but this should reduce the number of different undefined references on the first few compiles from hundreds to 5 or 6 Given minimal startup code and console support it should be trivial to make this compile and run the first few sysinits on almost any architecture. Requested by: alfred, imp, jhb
Notes
Notes: svn path=/head/; revision=80708
Diffstat (limited to 'sys/sparc64/include/endian.h')
-rw-r--r--sys/sparc64/include/endian.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/sys/sparc64/include/endian.h b/sys/sparc64/include/endian.h
new file mode 100644
index 000000000000..0e8e1f193391
--- /dev/null
+++ b/sys/sparc64/include/endian.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 1987, 1991, 1993
+ * The Regents of the University of California. 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 REGENTS 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 REGENTS 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.
+ *
+ * @(#)endian.h 8.1 (Berkeley) 6/10/93
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_ENDIAN_H_
+#define _MACHINE_ENDIAN_H_
+
+/*
+ * Define the order of 32-bit words in 64-bit words.
+ */
+#define _QUAD_HIGHWORD 0
+#define _QUAD_LOWWORD 1
+
+#ifndef _POSIX_SOURCE
+/*
+ * Definitions for byte order, according to byte significance from low
+ * address to high.
+ */
+#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */
+#define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */
+#define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */
+
+#define BYTE_ORDER BIG_ENDIAN
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+
+__BEGIN_DECLS
+in_addr_t htonl __P((in_addr_t));
+in_port_t htons __P((in_port_t));
+in_addr_t ntohl __P((in_addr_t));
+in_port_t ntohs __P((in_port_t));
+u_int16_t bswap16 __P((u_int16_t));
+u_int32_t bswap32 __P((u_int32_t));
+u_int64_t bswap64 __P((u_int64_t));
+__END_DECLS
+
+/*
+ * Macros for network/external number representation conversion.
+ */
+#if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
+#define ntohl(x) (x)
+#define ntohs(x) (x)
+#define htonl(x) (x)
+#define htons(x) (x)
+
+#define NTOHL(x) (x)
+#define NTOHS(x) (x)
+#define HTONL(x) (x)
+#define HTONS(x) (x)
+
+#else
+
+#define NTOHL(x) (x) = ntohl((in_addr_t)x)
+#define NTOHS(x) (x) = ntohs((in_port_t)x)
+#define HTONL(x) (x) = htonl((in_addr_t)x)
+#define HTONS(x) (x) = htons((in_port_t)x)
+#endif
+#endif /* !_POSIX_SOURCE */
+#endif /* !_MACHINE_ENDIAN_H_ */