1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* Linux 2.6.32 and later Kernel module for VMware MVP Guest Communications
*
* Copyright (C) 2010-2012 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; see the file COPYING. If not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#line 5
/**
* @file
*
* @brief common definitions for GCC
*/
#ifndef _MVP_COMPILER_GCC_H
#define _MVP_COMPILER_GCC_H
#define INCLUDE_ALLOW_MVPD
#define INCLUDE_ALLOW_VMX
#define INCLUDE_ALLOW_MODULE
#define INCLUDE_ALLOW_MONITOR
#define INCLUDE_ALLOW_PV
#define INCLUDE_ALLOW_HOSTUSER
#define INCLUDE_ALLOW_GUESTUSER
#define INCLUDE_ALLOW_WORKSTATION
#define INCLUDE_ALLOW_GPL
#include "include_check.h"
/**
* @brief Count leading zeroes.
*
* @param n unsigned 32-bit integer.
*
* @return 32 if n == 0 otherwise 31 - the bit position of the most significant 1
* in n.
*/
#ifdef __COVERITY__
static inline int
CLZ(unsigned int n)
{
unsigned int r = 0;
while (n) {
r++;
n >>= 1;
}
return 32 - r;
}
#else
#define CLZ(n) __builtin_clz(n)
#endif
#define PACKED __attribute__ ((packed))
#define ALLOC __attribute__ ((malloc, warn_unused_result))
#define UNUSED __attribute__ ((unused))
#define PURE __attribute__ ((pure))
#define WARN_UNUSED_RESULT __attribute__ ((warn_unused_result))
#define FORMAT(x,y,z) __attribute__ ((format(x,y,z)))
#define LIKELY(x) __builtin_expect(!!(x), 1)
#define UNLIKELY(x) __builtin_expect((x), 0)
/*
* For debug builds, we want to omit __attribute__((noreturn)) so that gcc will
* keep stack linkages and then we will have useful core dumps. For non-debug
* builds, we don't care about the stack frames and want the little bit of
* optimization that noreturn gives us.
*/
#if defined(__COVERITY__) || !defined(MVP_DEBUG)
#define NORETURN __attribute__((noreturn))
#else
#define NORETURN
#endif
#endif
|
