1 /**************************************************************************
2  *
3  * Copyright 2010 Vmware, Inc.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 
29 /*
30  * Miscellaneous OS services.
31  */
32 
33 
34 #ifndef _OS_MISC_H_
35 #define _OS_MISC_H_
36 
37 
38 #include "pipe/p_compiler.h"
39 
40 
41 #if defined(PIPE_OS_UNIX)
42 #  include <signal.h> /* for kill() */
43 #  include <unistd.h> /* getpid() */
44 #endif
45 
46 
47 #ifdef  __cplusplus
48 extern "C" {
49 #endif
50 
51 
52 /*
53  * Trap into the debugger.
54  */
55 #if (defined(PIPE_ARCH_X86) || defined(PIPE_ARCH_X86_64)) && defined(PIPE_CC_GCC)
56 #  define os_break() __asm("int3")
57 #elif defined(PIPE_CC_MSVC)
58 #  define os_break()  __debugbreak()
59 #elif defined(PIPE_OS_UNIX)
60 #  define os_break() kill(getpid(), SIGTRAP)
61 #else
62 #  define os_break() abort()
63 #endif
64 
65 
66 /*
67  * Abort the program.
68  */
69 #if defined(DEBUG)
70 #  define os_abort() os_break()
71 #else
72 #  define os_abort() abort()
73 #endif
74 
75 
76 /*
77  * Output a message. Message should preferably end in a newline.
78  */
79 void
80 os_log_message(const char *message);
81 
82 
83 /*
84  * Get an option. Should return NULL if specified option is not set.
85  */
86 const char *
87 os_get_option(const char *name);
88 
89 
90 #ifdef	__cplusplus
91 }
92 #endif
93 
94 
95 #endif /* _OS_MISC_H_ */
96