libffi (3.4.4)
1 /* -----------------------------------------------------------------*-C-*-
2 ffitarget.h - Copyright (c) 2012, 2014, 2018 Anthony Green
3 Copyright (c) 1996-2003, 2010 Red Hat, Inc.
4 Copyright (C) 2008 Free Software Foundation, Inc.
5
6 Target configuration macros for x86 and x86-64.
7
8 Permission is hereby granted, free of charge, to any person obtaining
9 a copy of this software and associated documentation files (the
10 ``Software''), to deal in the Software without restriction, including
11 without limitation the rights to use, copy, modify, merge, publish,
12 distribute, sublicense, and/or sell copies of the Software, and to
13 permit persons to whom the Software is furnished to do so, subject to
14 the following conditions:
15
16 The above copyright notice and this permission notice shall be included
17 in all copies or substantial portions of the Software.
18
19 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
20 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
23 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
24 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26 DEALINGS IN THE SOFTWARE.
27
28 ----------------------------------------------------------------------- */
29
30 #ifndef LIBFFI_TARGET_H
31 #define LIBFFI_TARGET_H
32
33 #ifndef LIBFFI_H
34 #error "Please do not include ffitarget.h directly into your source. Use ffi.h instead."
35 #endif
36
37 /* ---- System specific configurations ----------------------------------- */
38
39 /* For code common to all platforms on x86 and x86_64. */
40 #define X86_ANY
41
42 #if defined (X86_64) && defined (__i386__)
43 #undef X86_64
44 #warning ******************************************************
45 #warning ********** X86 IS DEFINED ****************************
46 #warning ******************************************************
47 #define X86
48 #endif
49
50 #ifdef X86_WIN64
51 #define FFI_SIZEOF_ARG 8
52 #define USE_BUILTIN_FFS 0 /* not yet implemented in mingw-64 */
53 #endif
54
55 #define FFI_TARGET_SPECIFIC_STACK_SPACE_ALLOCATION
56 #ifndef _MSC_VER
57 #define FFI_TARGET_HAS_COMPLEX_TYPE
58 #endif
59
60 /* ---- Generic type definitions ----------------------------------------- */
61
62 #ifndef LIBFFI_ASM
63 #ifdef X86_WIN64
64 #ifdef _MSC_VER
65 typedef unsigned __int64 ffi_arg;
66 typedef __int64 ffi_sarg;
67 #else
68 typedef unsigned long long ffi_arg;
69 typedef long long ffi_sarg;
70 #endif
71 #else
72 #if defined __x86_64__ && defined __ILP32__
73 #define FFI_SIZEOF_ARG 8
74 #define FFI_SIZEOF_JAVA_RAW 4
75 typedef unsigned long long ffi_arg;
76 typedef long long ffi_sarg;
77 #else
78 typedef unsigned long ffi_arg;
79 typedef signed long ffi_sarg;
80 #endif
81 #endif
82
83 typedef enum ffi_abi {
84 #if defined(X86_WIN64)
85 FFI_FIRST_ABI = 0,
86 FFI_WIN64, /* sizeof(long double) == 8 - microsoft compilers */
87 FFI_GNUW64, /* sizeof(long double) == 16 - GNU compilers */
88 FFI_LAST_ABI,
89 #ifdef __GNUC__
90 FFI_DEFAULT_ABI = FFI_GNUW64
91 #else
92 FFI_DEFAULT_ABI = FFI_WIN64
93 #endif
94
95 #elif defined(X86_64) || (defined (__x86_64__) && defined (X86_DARWIN))
96 FFI_FIRST_ABI = 1,
97 FFI_UNIX64,
98 FFI_WIN64,
99 FFI_EFI64 = FFI_WIN64,
100 FFI_GNUW64,
101 FFI_LAST_ABI,
102 FFI_DEFAULT_ABI = FFI_UNIX64
103
104 #elif defined(X86_WIN32)
105 FFI_FIRST_ABI = 0,
106 FFI_SYSV = 1,
107 FFI_STDCALL = 2,
108 FFI_THISCALL = 3,
109 FFI_FASTCALL = 4,
110 FFI_MS_CDECL = 5,
111 FFI_PASCAL = 6,
112 FFI_REGISTER = 7,
113 FFI_LAST_ABI,
114 FFI_DEFAULT_ABI = FFI_MS_CDECL
115 #else
116 FFI_FIRST_ABI = 0,
117 FFI_SYSV = 1,
118 FFI_THISCALL = 3,
119 FFI_FASTCALL = 4,
120 FFI_STDCALL = 5,
121 FFI_PASCAL = 6,
122 FFI_REGISTER = 7,
123 FFI_MS_CDECL = 8,
124 FFI_LAST_ABI,
125 FFI_DEFAULT_ABI = FFI_SYSV
126 #endif
127 } ffi_abi;
128 #endif
129
130 /* ---- Definitions for closures ----------------------------------------- */
131
132 #define FFI_CLOSURES 1
133 #define FFI_GO_CLOSURES 1
134
135 #define FFI_TYPE_SMALL_STRUCT_1B (FFI_TYPE_LAST + 1)
136 #define FFI_TYPE_SMALL_STRUCT_2B (FFI_TYPE_LAST + 2)
137 #define FFI_TYPE_SMALL_STRUCT_4B (FFI_TYPE_LAST + 3)
138 #define FFI_TYPE_MS_STRUCT (FFI_TYPE_LAST + 4)
139
140 #if defined (X86_64) || defined(X86_WIN64) \
141 || (defined (__x86_64__) && defined (X86_DARWIN))
142 /* 4 bytes of ENDBR64 + 7 bytes of LEA + 6 bytes of JMP + 7 bytes of NOP
143 + 8 bytes of pointer. */
144 # define FFI_TRAMPOLINE_SIZE 32
145 # define FFI_NATIVE_RAW_API 0
146 #else
147 /* 4 bytes of ENDBR32 + 5 bytes of MOV + 5 bytes of JMP + 2 unused
148 bytes. */
149 # define FFI_TRAMPOLINE_SIZE 16
150 # define FFI_NATIVE_RAW_API 1 /* x86 has native raw api support */
151 #endif
152
153 #if !defined(GENERATE_LIBFFI_MAP) && defined(__CET__)
154 # include <cet.h>
155 # if (__CET__ & 1) != 0
156 # define ENDBR_PRESENT
157 # endif
158 # define _CET_NOTRACK notrack
159 #else
160 # define _CET_ENDBR
161 # define _CET_NOTRACK
162 #endif
163
164 #endif
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