1 /****************************************************************************
3 * GNAT COMPILER COMPONENTS *
5 * I N I T I A L I Z E *
7 * C Implementation File *
9 * Copyright (C) 1992-2012, 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)
60 /******************************************/
61 /* __gnat_initialize (NT-mingw32 Version) */
62 /******************************************/
64 #if defined (__MINGW32__)
68 extern void __gnat_init_float (void);
69 extern void __gnat_install_SEH_handler (void *);
72 extern char **gnat_argv
;
74 #ifdef GNAT_UNICODE_SUPPORT
76 #define EXPAND_ARGV_RATE 128
79 append_arg (int *index
, LPWSTR dir
, LPWSTR value
,
80 char ***argv
, int *last
, int quoted
)
84 int vallen
= _tcslen (value
);
91 fullvalue
= (LPWSTR
) xmalloc ((vallen
+ 1) * sizeof(TCHAR
));
96 dirlen
= _tcslen (dir
);
98 fullvalue
= (LPWSTR
) xmalloc ((dirlen
+ vallen
+ 1) * sizeof(TCHAR
));
99 _tcscpy (fullvalue
, dir
);
106 _tcsncpy (fullvalue
+ dirlen
, value
+ 1, vallen
- 1);
107 fullvalue
[dirlen
+ vallen
- sizeof(TCHAR
)] = _T('\0');
110 _tcscpy (fullvalue
+ dirlen
, value
);
114 *last
+= EXPAND_ARGV_RATE
;
115 *argv
= (char **) xrealloc (*argv
, (*last
) * sizeof (char *));
118 size
= WS2SC (NULL
, fullvalue
, 0);
119 (*argv
)[*index
] = (char *) xmalloc (size
+ sizeof(TCHAR
));
120 WS2SC ((*argv
)[*index
], fullvalue
, size
);
129 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
131 /* Initialize floating-point coprocessor. This call is needed because
132 the MS libraries default to 64-bit precision instead of 80-bit
133 precision, and we require the full precision for proper operation,
134 given that we have set Max_Digits etc with this in mind */
135 __gnat_init_float ();
137 #ifdef GNAT_UNICODE_SUPPORT
138 /* Set current code page for filenames handling. */
140 char *codepage
= getenv ("GNAT_CODE_PAGE");
142 /* Default code page is UTF-8. */
143 CurrentCodePage
= CP_UTF8
;
145 if (codepage
!= NULL
)
147 if (strcmp (codepage
, "CP_ACP") == 0)
148 CurrentCodePage
= CP_ACP
;
149 else if (strcmp (codepage
, "CP_UTF8") == 0)
150 CurrentCodePage
= CP_UTF8
;
154 /* Adjust gnat_argv to support Unicode characters. */
160 int argc_expanded
= 0;
161 TCHAR result
[MAX_PATH
];
164 wargv
= CommandLineToArgvW (GetCommandLineW(), &wargc
);
168 /* Set gnat_argv with arguments encoded in UTF-8. */
170 gnat_argv
= (char **) xmalloc ((last
) * sizeof (char *));
172 /* argv[0] is the executable full path-name. */
174 SearchPath (NULL
, wargv
[0], _T(".exe"), MAX_PATH
, result
, NULL
);
175 append_arg (&argc_expanded
, NULL
, result
, &gnat_argv
, &last
, 0);
177 for (k
=1; k
<wargc
; k
++)
179 quoted
= (wargv
[k
][0] == _T('\''));
181 /* Check for wildcard expansion if the argument is not quoted. */
183 && (_tcsstr (wargv
[k
], _T("?")) != 0 ||
184 _tcsstr (wargv
[k
], _T("*")) != 0))
186 /* Wilcards are present, append all corresponding matches. */
187 WIN32_FIND_DATA FileData
;
188 HANDLE hDir
= FindFirstFile (wargv
[k
], &FileData
);
190 LPWSTR ldir
= _tcsrchr (wargv
[k
], _T('\\'));
193 ldir
= _tcsrchr (wargv
[k
], _T('/'));
195 if (hDir
== INVALID_HANDLE_VALUE
)
197 /* No match, append arg as-is. */
198 append_arg (&argc_expanded
, NULL
, wargv
[k
],
199 &gnat_argv
, &last
, quoted
);
205 int n
= ldir
- wargv
[k
] + 1;
206 dir
= (LPWSTR
) xmalloc ((n
+ 1) * sizeof (TCHAR
));
207 _tcsncpy (dir
, wargv
[k
], n
);
211 /* Append first match and all remaining ones. */
214 /* Do not add . and .. special entries */
216 if (_tcscmp (FileData
.cFileName
, _T(".")) != 0
217 && _tcscmp (FileData
.cFileName
, _T("..")) != 0)
218 append_arg (&argc_expanded
, dir
, FileData
.cFileName
,
219 &gnat_argv
, &last
, 0);
220 } while (FindNextFile (hDir
, &FileData
));
230 /* No wildcard. Store parameter as-is. Remove quote if
232 append_arg (&argc_expanded
, NULL
, wargv
[k
],
233 &gnat_argv
, &last
, quoted
);
238 gnat_argc
= argc_expanded
;
239 gnat_argv
= (char **) xrealloc
240 (gnat_argv
, argc_expanded
* sizeof (char *));
245 /* Note that we do not activate this for the compiler itself to avoid a
246 bootstrap path problem. Older version of gnatbind will generate a call
247 to __gnat_initialize() without argument. Therefore we cannot use eh in
248 this case. It will be possible to remove the following #ifdef at some
251 /* Install the Structured Exception handler. */
253 __gnat_install_SEH_handler (eh
);
257 /******************************************/
258 /* __gnat_initialize (init_float version) */
259 /******************************************/
261 #elif defined (__Lynx__) || defined (__FreeBSD__) || defined(__NetBSD__) \
262 || defined (__OpenBSD__)
264 extern void __gnat_init_float (void);
267 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
269 __gnat_init_float ();
272 /***************************************/
273 /* __gnat_initialize (VxWorks Version) */
274 /***************************************/
276 #elif defined(__vxworks)
278 extern void __gnat_init_float (void);
281 __gnat_initialize (void *eh
)
283 __gnat_init_float ();
286 #elif defined(_T_HPUX10) || (!defined(IN_RTS) && defined(_X_HPUX10))
288 /************************************************/
289 /* __gnat_initialize (PA-RISC HP-UX 10 Version) */
290 /************************************************/
292 extern void __main (void);
295 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)
302 /* For all other versions of GNAT, the initialize routine and handler
303 installation do nothing */
305 /***************************************/
306 /* __gnat_initialize (Default Version) */
307 /***************************************/
310 __gnat_initialize (void *eh ATTRIBUTE_UNUSED
)