1/*
2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26#ifndef JDWP_UTIL_MD_H
27#define JDWP_UTIL_MD_H
28
29#include <stddef.h>
30#include <stdint.h> /* To get uintptr_t */
31
32#include <limits.h>
33#include <sys/types.h>
34#ifdef _ALLBSD_SOURCE
35#include <machine/endian.h>
36#elif defined(__linux__)
37#include <endian.h>
38#endif
39
40#ifdef _LP64
41typedef unsigned long UNSIGNED_JLONG;
42typedef unsigned int UNSIGNED_JINT;
43#else /* _LP64 */
44typedef unsigned long long UNSIGNED_JLONG;
45typedef unsigned long UNSIGNED_JINT;
46#endif /* _LP64 */
47
48#ifndef MAXPATHLEN
49#define MAXPATHLEN PATH_MAX
50#endif
51
52/* On little endian machines, convert java big endian numbers. */
53
54#if defined(_LITTLE_ENDIAN)
55
56#define HOST_TO_JAVA_CHAR(x) (((x & 0xff) << 8) | ((x >> 8) & (0xff)))
57#define HOST_TO_JAVA_SHORT(x) (((x & 0xff) << 8) | ((x >> 8) & (0xff)))
58#define HOST_TO_JAVA_INT(x) \
59 ((x << 24) | \
60 ((x & 0x0000ff00) << 8) | \
61 ((x & 0x00ff0000) >> 8) | \
62 (((UNSIGNED_JINT)(x & 0xff000000)) >> 24))
63#define HOST_TO_JAVA_LONG(x) \
64 ((x << 56) | \
65 ((x & 0x000000000000ff00LL) << 40) | \
66 ((x & 0x0000000000ff0000LL) << 24) | \
67 ((x & 0x00000000ff000000LL) << 8) | \
68 ((x & 0x000000ff00000000LL) >> 8) | \
69 ((x & 0x0000ff0000000000LL) >> 24) | \
70 ((x & 0x00ff000000000000LL) >> 40) | \
71 (((UNSIGNED_JLONG)(x & 0xff00000000000000ULL)) >> 56))
72#define HOST_TO_JAVA_FLOAT(x) stream_encodeFloat(x)
73#define HOST_TO_JAVA_DOUBLE(x) stream_encodeDouble(x)
74
75#else
76
77#define HOST_TO_JAVA_CHAR(x) (x)
78#define HOST_TO_JAVA_SHORT(x) (x)
79#define HOST_TO_JAVA_INT(x) (x)
80#define HOST_TO_JAVA_LONG(x) (x)
81#define HOST_TO_JAVA_FLOAT(x) (x)
82#define HOST_TO_JAVA_DOUBLE(x) (x)
83
84#endif
85
86#define JAVA_TO_HOST_CHAR(x) HOST_TO_JAVA_CHAR(x)
87#define JAVA_TO_HOST_SHORT(x) HOST_TO_JAVA_SHORT(x)
88#define JAVA_TO_HOST_INT(x) HOST_TO_JAVA_INT(x)
89#define JAVA_TO_HOST_LONG(x) HOST_TO_JAVA_LONG(x)
90#define JAVA_TO_HOST_FLOAT(x) HOST_TO_JAVA_FLOAT(x)
91#define JAVA_TO_HOST_DOUBLE(x) HOST_TO_JAVA_DOUBLE(x)
92
93#endif
94