gcc/ada/initialize.c - chromiumos/third_party/gcc - Git at Google

 /****************************************************************************
  *                                                                          *
  *                         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
	/****************************************************************************
	* *
	* 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