1 /****************************************************************************
3 * GNAT COMPILER COMPONENTS *
5 * I N I T I A L I Z E *
7 * C Implementation File *
9 * Copyright (C) 1992-2014, Free Software Foundation, Inc. *
11 * GNAT is free software; you can redistribute it and/or modify it under *
12 * terms of the GNU General Public License as published by the Free Soft- *
13 * ware Foundation; either version 3, or (at your option) any later ver- *
14 * sion. GNAT is distributed in the hope that it will be useful, but WITH- *
15 * OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
16 * or FITNESS FOR A PARTICULAR PURPOSE. *
18 * As a special exception under Section 7 of GPL version 3, you are granted *
19 * additional permissions described in the GCC Runtime Library Exception, *
20 * version 3.1, as published by the Free Software Foundation. *
22 * You should have received a copy of the GNU General Public License and *
23 * a copy of the GCC Runtime Library Exception along with this program; *
24 * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
25 * <http://www.gnu.org/licenses/>. *
27 * GNAT was originally developed by the GNAT team at New York University. *
28 * Extensive contributions were provided by Ada Core Technologies Inc. *
30 ****************************************************************************/
32 /* This unit provides default implementation for __gnat_initialize ()
33 which is called before the elaboration of the partition. It is provided
34 in a separate file/object so that users can replace it easily.
35 The default implementation should be null on most targets. */
37 /* The following include is here to meet the published VxWorks requirement
38 that the __vxworks header appear before any other include. */
46 /* We don't have libiberty, so use malloc. */
47 #define xmalloc(S) malloc (S)
48 #define xrealloc(V,S) realloc (V,S)
61 /******************************************/
62 /* __gnat_initialize (NT-mingw32 Version) */
63 /******************************************/
65 int __gnat_wide_text_translation_required
= 0;
66 /* wide text translation, 0=none, 1=activated */
68 #if defined (__MINGW32__)
72 extern void __gnat_init_float (void);
73 extern void __gnat_install_SEH_handler (void *);
76 extern char **gnat_argv
;
77 extern CRITICAL_SECTION ProcListCS
;
78 extern HANDLE ProcListEvt
;
80 #ifdef GNAT_UNICODE_SUPPORT
82 #define EXPAND_ARGV_RATE 128
85 append_arg (int *index
, LPWSTR dir
, LPWSTR value
,
86 char ***argv
, int *last
, int quoted
)
90 int vallen
= _tcslen (value
);
97 fullvalue
= (LPWSTR
) xmalloc ((vallen
+ 1) * sizeof(TCHAR
));
102 dirlen
= _tcslen (dir
);
104 fullvalue
= (LPWSTR
) xmalloc ((dirlen
+ vallen
+ 1) * sizeof(TCHAR
));
105 _tcscpy (fullvalue
, dir
);
112 _tcsncpy (fullvalue
+ dirlen
, value
+ 1, vallen
- 1);
113 fullvalue
[dirlen
+ vallen
- sizeof(TCHAR
)] = _T('\0');
116 _tcscpy (fullvalue
+ dirlen
, value
);
120 *last
+= EXPAND_ARGV_RATE
;
121 *argv
= (char **) xrealloc (*argv
, (*last
) * sizeof (char *));
124 size
= WS2SC (NULL
, fullvalue
, 0);
125 (*argv
)[*index
] = (char *) xmalloc (size
+ sizeof(TCHAR
));
126 WS2SC ((*argv
)[*index
], fullvalue
, size
);
135 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
137 /* Initialize floating-point coprocessor. This call is needed because
138 the MS libraries default to 64-bit precision instead of 80-bit
139 precision, and we require the full precision for proper operation,
140 given that we have set Max_Digits etc with this in mind */
141 __gnat_init_float ();
143 /* Initialize the critical section and event handle for the win32_wait()
144 implementation, see adaint.c */
145 InitializeCriticalSection (&ProcListCS
);
146 ProcListEvt
= CreateEvent (NULL
, FALSE
, FALSE
, NULL
);
148 #ifdef GNAT_UNICODE_SUPPORT
149 /* Set current code page for filenames handling. */
151 char *codepage
= getenv ("GNAT_CODE_PAGE");
153 /* Default code page is UTF-8. */
154 CurrentCodePage
= CP_UTF8
;
156 if (codepage
!= NULL
)
158 if (strcmp (codepage
, "CP_ACP") == 0)
159 CurrentCodePage
= CP_ACP
;
160 else if (strcmp (codepage
, "CP_UTF8") == 0)
161 CurrentCodePage
= CP_UTF8
;
165 /* Set current encoding for the IO. */
167 char *ccsencoding
= getenv ("GNAT_CCS_ENCODING");
169 /* Default CCS Encoding. */
170 CurrentCCSEncoding
= _O_TEXT
;
171 __gnat_wide_text_translation_required
= 0;
173 if (ccsencoding
!= NULL
)
175 if (strcmp (ccsencoding
, "U16TEXT") == 0)
177 CurrentCCSEncoding
= _O_U16TEXT
;
178 __gnat_wide_text_translation_required
= 1;
180 else if (strcmp (ccsencoding
, "TEXT") == 0)
182 CurrentCCSEncoding
= _O_TEXT
;
183 __gnat_wide_text_translation_required
= 0;
185 else if (strcmp (ccsencoding
, "WTEXT") == 0)
187 CurrentCCSEncoding
= _O_WTEXT
;
188 __gnat_wide_text_translation_required
= 1;
190 else if (strcmp (ccsencoding
, "U8TEXT") == 0)
192 CurrentCCSEncoding
= _O_U8TEXT
;
193 __gnat_wide_text_translation_required
= 1;
198 /* Adjust gnat_argv to support Unicode characters. */
204 int argc_expanded
= 0;
205 TCHAR result
[MAX_PATH
];
208 wargv
= CommandLineToArgvW (GetCommandLineW(), &wargc
);
212 /* Set gnat_argv with arguments encoded in UTF-8. */
214 gnat_argv
= (char **) xmalloc ((last
) * sizeof (char *));
216 /* argv[0] is the executable full path-name. */
218 SearchPath (NULL
, wargv
[0], _T(".exe"), MAX_PATH
, result
, NULL
);
219 append_arg (&argc_expanded
, NULL
, result
, &gnat_argv
, &last
, 0);
221 for (k
=1; k
<wargc
; k
++)
223 quoted
= (wargv
[k
][0] == _T('\''));
225 /* Check for wildcard expansion if the argument is not quoted. */
227 && (_tcsstr (wargv
[k
], _T("?")) != 0 ||
228 _tcsstr (wargv
[k
], _T("*")) != 0))
230 /* Wilcards are present, append all corresponding matches. */
231 WIN32_FIND_DATA FileData
;
232 HANDLE hDir
= FindFirstFile (wargv
[k
], &FileData
);
234 LPWSTR ldir
= _tcsrchr (wargv
[k
], _T('\\'));
237 ldir
= _tcsrchr (wargv
[k
], _T('/'));
239 if (hDir
== INVALID_HANDLE_VALUE
)
241 /* No match, append arg as-is. */
242 append_arg (&argc_expanded
, NULL
, wargv
[k
],
243 &gnat_argv
, &last
, quoted
);
249 int n
= ldir
- wargv
[k
] + 1;
250 dir
= (LPWSTR
) xmalloc ((n
+ 1) * sizeof (TCHAR
));
251 _tcsncpy (dir
, wargv
[k
], n
);
255 /* Append first match and all remaining ones. */
258 /* Do not add . and .. special entries */
260 if (_tcscmp (FileData
.cFileName
, _T(".")) != 0
261 && _tcscmp (FileData
.cFileName
, _T("..")) != 0)
262 append_arg (&argc_expanded
, dir
, FileData
.cFileName
,
263 &gnat_argv
, &last
, 0);
264 } while (FindNextFile (hDir
, &FileData
));
274 /* No wildcard. Store parameter as-is. Remove quote if
276 append_arg (&argc_expanded
, NULL
, wargv
[k
],
277 &gnat_argv
, &last
, quoted
);
282 gnat_argc
= argc_expanded
;
283 gnat_argv
= (char **) xrealloc
284 (gnat_argv
, argc_expanded
* sizeof (char *));
289 /* Note that we do not activate this for the compiler itself to avoid a
290 bootstrap path problem. Older version of gnatbind will generate a call
291 to __gnat_initialize() without argument. Therefore we cannot use eh in
292 this case. It will be possible to remove the following #ifdef at some
295 /* Install the Structured Exception handler. */
297 __gnat_install_SEH_handler (eh
);
301 /******************************************/
302 /* __gnat_initialize (init_float version) */
303 /******************************************/
305 #elif defined (__Lynx__) || defined (__FreeBSD__) || defined(__NetBSD__) \
306 || defined (__OpenBSD__)
308 extern void __gnat_init_float (void);
311 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
313 __gnat_init_float ();
316 /***************************************/
317 /* __gnat_initialize (VxWorks Version) */
318 /***************************************/
320 #elif defined(__vxworks)
322 extern void __gnat_init_float (void);
325 __gnat_initialize (void *eh
)
327 __gnat_init_float ();
330 #elif defined(_T_HPUX10) || (!defined(IN_RTS) && defined(_X_HPUX10))
332 /************************************************/
333 /* __gnat_initialize (PA-RISC HP-UX 10 Version) */
334 /************************************************/
336 extern void __main (void);
339 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
346 /* For all other versions of GNAT, the initialize routine and handler
347 installation do nothing */
349 /***************************************/
350 /* __gnat_initialize (Default Version) */
351 /***************************************/
354 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)