2 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
10 #ifndef HEADER_E_OS2_H
11 # define HEADER_E_OS2_H
13 # include <openssl/opensslconf.h>
19 /******************************************************************************
20 * Detect operating systems. This probably needs completing.
21 * The result is that at least one OPENSSL_SYS_os macro should be defined.
22 * However, if none is defined, Unix is assumed.
25 # define OPENSSL_SYS_UNIX
27 /* --------------------- Microsoft operating systems ---------------------- */
30 * Note that MSDOS actually denotes 32-bit environments running on top of
31 * MS-DOS, such as DJGPP one.
33 # if defined(OPENSSL_SYS_MSDOS)
34 # undef OPENSSL_SYS_UNIX
38 * For 32 bit environment, there seems to be the CygWin environment and then
39 * all the others that try to do the same thing Microsoft does...
42 * UEFI lives here because it might be built with a Microsoft toolchain and
43 * we need to avoid the false positive match on Windows.
45 # if defined(OPENSSL_SYS_UEFI)
46 # undef OPENSSL_SYS_UNIX
47 # elif defined(OPENSSL_SYS_UWIN)
48 # undef OPENSSL_SYS_UNIX
49 # define OPENSSL_SYS_WIN32_UWIN
51 # if defined(__CYGWIN__) || defined(OPENSSL_SYS_CYGWIN)
52 # define OPENSSL_SYS_WIN32_CYGWIN
54 # if defined(_WIN32) || defined(OPENSSL_SYS_WIN32)
55 # undef OPENSSL_SYS_UNIX
56 # if !defined(OPENSSL_SYS_WIN32)
57 # define OPENSSL_SYS_WIN32
60 # if defined(_WIN64) || defined(OPENSSL_SYS_WIN64)
61 # undef OPENSSL_SYS_UNIX
62 # if !defined(OPENSSL_SYS_WIN64)
63 # define OPENSSL_SYS_WIN64
66 # if defined(OPENSSL_SYS_WINNT)
67 # undef OPENSSL_SYS_UNIX
69 # if defined(OPENSSL_SYS_WINCE)
70 # undef OPENSSL_SYS_UNIX
75 /* Anything that tries to look like Microsoft is "Windows" */
76 # if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN64) || defined(OPENSSL_SYS_WINNT) || defined(OPENSSL_SYS_WINCE)
77 # undef OPENSSL_SYS_UNIX
78 # define OPENSSL_SYS_WINDOWS
79 # ifndef OPENSSL_SYS_MSDOS
80 # define OPENSSL_SYS_MSDOS
85 * DLL settings. This part is a bit tough, because it's up to the
86 * application implementor how he or she will link the application, so it
87 * requires some macro to be used.
89 # ifdef OPENSSL_SYS_WINDOWS
90 # ifndef OPENSSL_OPT_WINDLL
91 # if defined(_WINDLL) /* This is used when building OpenSSL to
92 * indicate that DLL linkage should be used */
93 # define OPENSSL_OPT_WINDLL
98 /* ------------------------------- OpenVMS -------------------------------- */
99 # if defined(__VMS) || defined(VMS) || defined(OPENSSL_SYS_VMS)
100 # if !defined(OPENSSL_SYS_VMS)
101 # undef OPENSSL_SYS_UNIX
103 # define OPENSSL_SYS_VMS
105 # define OPENSSL_SYS_VMS_DECC
106 # elif defined(__DECCXX)
107 # define OPENSSL_SYS_VMS_DECC
108 # define OPENSSL_SYS_VMS_DECCXX
110 # define OPENSSL_SYS_VMS_NODECC
114 /* -------------------------------- Unix ---------------------------------- */
115 # ifdef OPENSSL_SYS_UNIX
116 # if defined(linux) || defined(__linux__) && !defined(OPENSSL_SYS_LINUX)
117 # define OPENSSL_SYS_LINUX
119 # if defined(_AIX) && !defined(OPENSSL_SYS_AIX)
120 # define OPENSSL_SYS_AIX
124 /* -------------------------------- VOS ----------------------------------- */
125 # if defined(__VOS__) && !defined(OPENSSL_SYS_VOS)
126 # define OPENSSL_SYS_VOS
128 # define OPENSSL_SYS_VOS_HPPA
131 # define OPENSSL_SYS_VOS_IA32
136 * That's it for OS-specific stuff
137 *****************************************************************************/
140 * OPENSSL_EXTERN is normally used to declare a symbol with possible extra
141 * attributes to handle its presence in a shared library.
142 * OPENSSL_EXPORT is used to define a symbol with extra possible attributes
143 * to make it visible in a shared library.
144 * Care needs to be taken when a header file is used both to declare and
145 * define symbols. Basically, for any library that exports some global
146 * variables, the following code must be present in the header file that
147 * declares them, before OPENSSL_EXTERN is used:
149 * #ifdef SOME_BUILD_FLAG_MACRO
150 * # undef OPENSSL_EXTERN
151 * # define OPENSSL_EXTERN OPENSSL_EXPORT
154 * The default is to have OPENSSL_EXPORT and OPENSSL_EXTERN
155 * have some generally sensible values.
158 # if defined(OPENSSL_SYS_WINDOWS) && defined(OPENSSL_OPT_WINDLL)
159 # define OPENSSL_EXPORT extern __declspec(dllexport)
160 # define OPENSSL_EXTERN extern __declspec(dllimport)
162 # define OPENSSL_EXPORT extern
163 # define OPENSSL_EXTERN extern
168 # define ossl_ssize_t __int64
169 # define OSSL_SSIZE_MAX _I64_MAX
171 # define ossl_ssize_t int
172 # define OSSL_SSIZE_MAX INT_MAX
176 # if defined(OPENSSL_SYS_UEFI) && !defined(ossl_ssize_t)
177 # define ossl_ssize_t INTN
178 # define OSSL_SSIZE_MAX MAX_INTN
181 # ifndef ossl_ssize_t
182 # define ossl_ssize_t ssize_t
183 # if defined(SSIZE_MAX)
184 # define OSSL_SSIZE_MAX SSIZE_MAX
185 # elif defined(_POSIX_SSIZE_MAX)
186 # define OSSL_SSIZE_MAX _POSIX_SSIZE_MAX
188 # define OSSL_SSIZE_MAX ((ssize_t)(SIZE_MAX>>1))
193 # define __owur __attribute__((__warn_unused_result__))
198 /* Standard integer types */
199 # define OPENSSL_NO_INTTYPES_H
200 # define OPENSSL_NO_STDINT_H
201 # if defined(OPENSSL_SYS_UEFI)
203 typedef UINT8 uint8_t;
204 typedef INT16 int16_t;
205 typedef UINT16 uint16_t;
206 typedef INT32 int32_t;
207 typedef UINT32 uint32_t;
208 typedef INT64 int64_t;
209 typedef UINT64 uint64_t;
210 # elif (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
211 defined(__osf__) || defined(__sgi) || defined(__hpux) || \
212 defined(OPENSSL_SYS_VMS) || defined (__OpenBSD__)
213 # include <inttypes.h>
214 # undef OPENSSL_NO_INTTYPES_H
215 /* Because the specs say that inttypes.h includes stdint.h if present */
216 # undef OPENSSL_NO_STDINT_H
217 # elif defined(_MSC_VER) && _MSC_VER<=1500
219 * minimally required typdefs for systems not supporting inttypes.h or
220 * stdint.h: currently just older VC++
222 typedef signed char int8_t;
223 typedef unsigned char uint8_t;
224 typedef short int16_t;
225 typedef unsigned short uint16_t;
227 typedef unsigned int uint32_t;
228 typedef __int64 int64_t;
229 typedef unsigned __int64 uint64_t;
232 # undef OPENSSL_NO_STDINT_H
235 /* ossl_inline: portable inline definition usable in public headers */
236 # if !defined(inline) && !defined(__cplusplus)
237 # if defined(__STDC_VERSION__) && __STDC_VERSION__>=199901L
238 /* just use inline */
239 # define ossl_inline inline
240 # elif defined(__GNUC__) && __GNUC__>=2
241 # define ossl_inline __inline__
242 # elif defined(_MSC_VER)
244 * Visual Studio: inline is available in C++ only, however
245 * __inline is available for C, see
246 * http://msdn.microsoft.com/en-us/library/z8y1yy88.aspx
248 # define ossl_inline __inline
253 # define ossl_inline inline
256 # if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
257 # define ossl_noreturn _Noreturn
258 # elif defined(__GNUC__) && __GNUC__ >= 2
259 # define ossl_noreturn __attribute__((noreturn))
261 # define ossl_noreturn
264 /* ossl_unused: portable unused attribute for use in public headers */
265 # if defined(__GNUC__)
266 # define ossl_unused __attribute__((unused))