/****************************************************************************
* *
* GNAT COMPILER COMPONENTS *
* *
* I N I T I A L I Z E *
* *
* C Implementation File *
* *
* Copyright (C) 1992-2012, Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
* ware Foundation; either version 3, or (at your option) any later ver- *
* sion. GNAT is distributed in the hope that it will be useful, but WITH- *
* OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY *
* or FITNESS FOR A PARTICULAR PURPOSE. *
* *
* As a special exception under Section 7 of GPL version 3, you are granted *
* additional permissions described in the GCC Runtime Library Exception, *
* version 3.1, as published by the Free Software Foundation. *
* *
* You should have received a copy of the GNU General Public License and *
* a copy of the GCC Runtime Library Exception along with this program; *
* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see *
* <http://www.gnu.org/licenses/>. *
* *
* GNAT was originally developed by the GNAT team at New York University. *
* Extensive contributions were provided by Ada Core Technologies Inc. *
* *
****************************************************************************/
/* This unit provides default implementation for __gnat_initialize ()
which is called before the elaboration of the partition. It is provided
in a separate file/object so that users can replace it easily.
The default implementation should be null on most targets. */
/* The following include is here to meet the published VxWorks requirement
that the __vxworks header appear before any other include. */
#ifdef __vxworks
#include "vxWorks.h"
#endif
#ifdef IN_RTS
#include "tconfig.h"
#include "tsystem.h"
/* We don't have libiberty, so use malloc. */
#define xmalloc(S) malloc (S)
#define xrealloc(V,S) realloc (V,S)
#else
#include "config.h"
#include "system.h"
#endif
#include "raise.h"
#ifdef __cplusplus
extern "C" {
#endif
/******************************************/
/* __gnat_initialize (NT-mingw32 Version) */
/******************************************/
#if defined (__MINGW32__)
#include "mingw32.h"
#include <windows.h>
extern void __gnat_init_float (void);
extern void __gnat_install_SEH_handler (void *);
extern int gnat_argc;
extern char **gnat_argv;
#ifdef GNAT_UNICODE_SUPPORT
#define EXPAND_ARGV_RATE 128
static void
append_arg (int *index, LPWSTR dir, LPWSTR value,
char ***argv, int *last, int quoted)
{
int size;
LPWSTR fullvalue;
int vallen = _tcslen (value);
int dirlen;
if (dir == NULL)
{
/* no dir prefix */
dirlen = 0;
fullvalue = (LPWSTR) xmalloc ((vallen + 1) * sizeof(TCHAR));
}
else
{
/* Add dir first */
dirlen = _tcslen (dir);
fullvalue = (LPWSTR) xmalloc ((dirlen + vallen + 1) * sizeof(TCHAR));
_tcscpy (fullvalue, dir);
}
/* Append value */
if (quoted)
{
_tcsncpy (fullvalue + dirlen, value + 1, vallen - 1);
fullvalue [dirlen + vallen - sizeof(TCHAR)] = _T('\0');
}
else
_tcscpy (fullvalue + dirlen, value);
if (*last <= *index)
{
*last += EXPAND_ARGV_RATE;
*argv = (char **) xrealloc (*argv, (*last) * sizeof (char *));
}
size = WS2SC (NULL, fullvalue, 0);
(*argv)[*index] = (char *) xmalloc (size + sizeof(TCHAR));
WS2SC ((*argv)[*index], fullvalue, size);
free (fullvalue);
(*index)++;
}
#endif
void
__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
{
/* Initialize floating-point coprocessor. This call is needed because
the MS libraries default to 64-bit precision instead of 80-bit
precision, and we require the full precision for proper operation,
given that we have set Max_Digits etc with this in mind */
__gnat_init_float ();
#ifdef GNAT_UNICODE_SUPPORT
/* Set current code page for filenames handling. */
{
char *codepage = getenv ("GNAT_CODE_PAGE");
/* Default code page is UTF-8. */
CurrentCodePage = CP_UTF8;
if (codepage != NULL)
{
if (strcmp (codepage, "CP_ACP") == 0)
CurrentCodePage = CP_ACP;
else if (strcmp (codepage, "CP_UTF8") == 0)
CurrentCodePage = CP_UTF8;
}
}
/* Adjust gnat_argv to support Unicode characters. */
{
LPWSTR *wargv;
int wargc;
int k;
int last;
int argc_expanded = 0;
TCHAR result [MAX_PATH];
int quoted;
wargv = CommandLineToArgvW (GetCommandLineW(), &wargc);
if (wargv != NULL)
{
/* Set gnat_argv with arguments encoded in UTF-8. */
last = wargc + 1;
gnat_argv = (char **) xmalloc ((last) * sizeof (char *));
/* argv[0] is the executable full path-name. */
SearchPath (NULL, wargv[0], _T(".exe"), MAX_PATH, result, NULL);
append_arg (&argc_expanded, NULL, result, &gnat_argv, &last, 0);
for (k=1; k<wargc; k++)
{
quoted = (wargv[k][0] == _T('\''));
/* Check for wildcard expansion if the argument is not quoted. */
if (!quoted
&& (_tcsstr (wargv[k], _T("?")) != 0 ||
_tcsstr (wargv[k], _T("*")) != 0))
{
/* Wilcards are present, append all corresponding matches. */
WIN32_FIND_DATA FileData;
HANDLE hDir = FindFirstFile (wargv[k], &FileData);
LPWSTR dir = NULL;
LPWSTR ldir = _tcsrchr (wargv[k], _T('\\'));
if (ldir == NULL)
ldir = _tcsrchr (wargv[k], _T('/'));
if (hDir == INVALID_HANDLE_VALUE)
{
/* No match, append arg as-is. */
append_arg (&argc_expanded, NULL, wargv[k],
&gnat_argv, &last, quoted);
}
else
{
if (ldir != NULL)
{
int n = ldir - wargv[k] + 1;
dir = (LPWSTR) xmalloc ((n + 1) * sizeof (TCHAR));
_tcsncpy (dir, wargv[k], n);
dir[n] = _T('\0');
}
/* Append first match and all remaining ones. */
do {
/* Do not add . and .. special entries */
if (_tcscmp (FileData.cFileName, _T(".")) != 0
&& _tcscmp (FileData.cFileName, _T("..")) != 0)
append_arg (&argc_expanded, dir, FileData.cFileName,
&gnat_argv, &last, 0);
} while (FindNextFile (hDir, &FileData));
FindClose (hDir);
if (dir != NULL)
free (dir);
}
}
else
{
/* No wildcard. Store parameter as-is. Remove quote if
needed. */
append_arg (&argc_expanded, NULL, wargv[k],
&gnat_argv, &last, quoted);
}
}
LocalFree (wargv);
gnat_argc = argc_expanded;
gnat_argv = (char **) xrealloc
(gnat_argv, argc_expanded * sizeof (char *));
}
}
#endif
/* Note that we do not activate this for the compiler itself to avoid a
bootstrap path problem. Older version of gnatbind will generate a call
to __gnat_initialize() without argument. Therefore we cannot use eh in
this case. It will be possible to remove the following #ifdef at some
point. */
#ifdef IN_RTS
/* Install the Structured Exception handler. */
if (eh)
__gnat_install_SEH_handler (eh);
#endif
}
/******************************************/
/* __gnat_initialize (init_float version) */
/******************************************/
#elif defined (__Lynx__) || defined (__FreeBSD__) || defined(__NetBSD__) \
|| defined (__OpenBSD__)
extern void __gnat_init_float (void);
void
__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
{
__gnat_init_float ();
}
/***************************************/
/* __gnat_initialize (VxWorks Version) */
/***************************************/
#elif defined(__vxworks)
extern void __gnat_init_float (void);
void
__gnat_initialize (void *eh)
{
__gnat_init_float ();
}
#elif defined(_T_HPUX10) || (!defined(IN_RTS) && defined(_X_HPUX10))
/************************************************/
/* __gnat_initialize (PA-RISC HP-UX 10 Version) */
/************************************************/
extern void __main (void);
void
__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
{
__main ();
}
#else
/* For all other versions of GNAT, the initialize routine and handler
installation do nothing */
/***************************************/
/* __gnat_initialize (Default Version) */
/***************************************/
void
__gnat_initialize (void *eh ATTRIBUTE_UNUSED)
{
}
#endif
#ifdef __cplusplus
}
#endif