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 #define X86
45 #endif
46
47 #ifdef X86_WIN64
48 #define FFI_SIZEOF_ARG 8
49 #define USE_BUILTIN_FFS 0 /* not yet implemented in mingw-64 */
50 #endif
51
52 #define FFI_TARGET_SPECIFIC_STACK_SPACE_ALLOCATION
53 #ifndef _MSC_VER
54 #define FFI_TARGET_HAS_COMPLEX_TYPE
55 #endif
56
57 /* ---- Generic type definitions ----------------------------------------- */
58
59 #ifndef LIBFFI_ASM
60 #ifdef X86_WIN64
61 #ifdef _MSC_VER
62 typedef unsigned __int64 ffi_arg;
63 typedef __int64 ffi_sarg;
64 #else
65 typedef unsigned long long ffi_arg;
66 typedef long long ffi_sarg;
67 #endif
68 #else
69 #if defined __x86_64__ && defined __ILP32__
70 #define FFI_SIZEOF_ARG 8
71 #define FFI_SIZEOF_JAVA_RAW 4
72 typedef unsigned long long ffi_arg;
73 typedef long long ffi_sarg;
74 #else
75 typedef unsigned long ffi_arg;
76 typedef signed long ffi_sarg;
77 #endif
78 #endif
79
80 typedef enum ffi_abi {
81 #if defined(X86_WIN64)
82 FFI_FIRST_ABI = 0,
83 FFI_WIN64, /* sizeof(long double) == 8 - microsoft compilers */
84 FFI_GNUW64, /* sizeof(long double) == 16 - GNU compilers */
85 FFI_LAST_ABI,
86 #ifdef __GNUC__
87 FFI_DEFAULT_ABI = FFI_GNUW64
88 #else
89 FFI_DEFAULT_ABI = FFI_WIN64
90 #endif
91
92 #elif defined(X86_64) || (defined (__x86_64__) && defined (X86_DARWIN))
93 FFI_FIRST_ABI = 1,
94 FFI_UNIX64,
95 FFI_WIN64,
96 FFI_EFI64 = FFI_WIN64,
97 FFI_GNUW64,
98 FFI_LAST_ABI,
99 FFI_DEFAULT_ABI = FFI_UNIX64
100
101 #elif defined(X86_WIN32)
102 FFI_FIRST_ABI = 0,
103 FFI_SYSV = 1,
104 FFI_STDCALL = 2,
105 FFI_THISCALL = 3,
106 FFI_FASTCALL = 4,
107 FFI_MS_CDECL = 5,
108 FFI_PASCAL = 6,
109 FFI_REGISTER = 7,
110 FFI_LAST_ABI,
111 FFI_DEFAULT_ABI = FFI_MS_CDECL
112 #else
113 FFI_FIRST_ABI = 0,
114 FFI_SYSV = 1,
115 FFI_THISCALL = 3,
116 FFI_FASTCALL = 4,
117 FFI_STDCALL = 5,
118 FFI_PASCAL = 6,
119 FFI_REGISTER = 7,
120 FFI_MS_CDECL = 8,
121 FFI_LAST_ABI,
122 FFI_DEFAULT_ABI = FFI_SYSV
123 #endif
124 } ffi_abi;
125 #endif
126
127 /* ---- Definitions for closures ----------------------------------------- */
128
129 #define FFI_CLOSURES 1
130 #define FFI_GO_CLOSURES 1
131
132 #define FFI_TYPE_SMALL_STRUCT_1B (FFI_TYPE_LAST + 1)
133 #define FFI_TYPE_SMALL_STRUCT_2B (FFI_TYPE_LAST + 2)
134 #define FFI_TYPE_SMALL_STRUCT_4B (FFI_TYPE_LAST + 3)
135 #define FFI_TYPE_MS_STRUCT (FFI_TYPE_LAST + 4)
136
137 #if defined (X86_64) || defined(X86_WIN64) \
138 || (defined (__x86_64__) && defined (X86_DARWIN))
139 /* 4 bytes of ENDBR64 + 7 bytes of LEA + 6 bytes of JMP + 7 bytes of NOP
140 + 8 bytes of pointer. */
141 # define FFI_TRAMPOLINE_SIZE 32
142 # define FFI_NATIVE_RAW_API 0
143 #else
144 /* 4 bytes of ENDBR32 + 5 bytes of MOV + 5 bytes of JMP + 2 unused
145 bytes. */
146 # define FFI_TRAMPOLINE_SIZE 16
147 # define FFI_NATIVE_RAW_API 1 /* x86 has native raw api support */
148 #endif
149
150 #if !defined(GENERATE_LIBFFI_MAP) && defined(__CET__)
151 # include <cet.h>
152 # if (__CET__ & 1) != 0
153 # define ENDBR_PRESENT
154 # endif
155 # define _CET_NOTRACK notrack
156 #else
157 # define _CET_ENDBR
158 # define _CET_NOTRACK
159 #endif
160
161 #endif
162