1/*
2 * Copyright (C) 2011 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef InlineASM_h
27#define InlineASM_h
28
29/* asm directive helpers */
30
31#if OS(DARWIN) || (OS(WINDOWS) && CPU(X86))
32#define SYMBOL_STRING(name) "_" #name
33#else
34#define SYMBOL_STRING(name) #name
35#endif
36
37#if OS(IOS)
38#define THUMB_FUNC_PARAM(name) SYMBOL_STRING(name)
39#else
40#define THUMB_FUNC_PARAM(name)
41#endif
42
43#if (OS(LINUX) || OS(FREEBSD)) && CPU(X86_64)
44#define GLOBAL_REFERENCE(name) #name "@plt"
45#elif CPU(X86) && COMPILER(MINGW)
46#define GLOBAL_REFERENCE(name) "@" #name "@4"
47#else
48#define GLOBAL_REFERENCE(name) SYMBOL_STRING(name)
49#endif
50
51#if HAVE(INTERNAL_VISIBILITY)
52#define LOCAL_REFERENCE(name) SYMBOL_STRING(name)
53#else
54#define LOCAL_REFERENCE(name) GLOBAL_REFERENCE(name)
55#endif
56
57#if OS(DARWIN)
58    // Mach-O platform
59#define HIDE_SYMBOL(name) ".private_extern _" #name
60#elif OS(AIX)
61    // IBM's own file format
62#define HIDE_SYMBOL(name) ".lglobl " #name
63#elif   OS(LINUX)               \
64     || OS(FREEBSD)             \
65     || OS(OPENBSD)             \
66     || OS(SOLARIS)             \
67     || (OS(HPUX) && CPU(IA64)) \
68     || OS(NETBSD)
69    // ELF platform
70#define HIDE_SYMBOL(name) ".hidden " #name
71#else
72#define HIDE_SYMBOL(name)
73#endif
74
75// FIXME: figure out how this works on all the platforms. I know that
76// on ELF, the preferred form is ".Lstuff" as opposed to "Lstuff".
77// Don't know about any of the others.
78#if OS(DARWIN)
79#define LOCAL_LABEL_STRING(name) "L" #name
80#elif   OS(LINUX)               \
81     || OS(FREEBSD)             \
82     || OS(OPENBSD)             \
83     || OS(NETBSD)
84    // GNU as-compatible syntax.
85#define LOCAL_LABEL_STRING(name) ".L" #name
86#endif
87
88#if (CPU(ARM_TRADITIONAL) && (defined(thumb2) || defined(__thumb2__) || defined(__thumb) || defined(__thumb__))) || CPU(ARM_THUMB2)
89#define INLINE_ARM_FUNCTION(name) ".thumb" "\n" ".thumb_func " THUMB_FUNC_PARAM(name) "\n"
90#else
91#define INLINE_ARM_FUNCTION(name)
92#endif
93
94#endif // InlineASM_h
95