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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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1 files changed, 362 insertions, 0 deletions

diff --git a/gcc/ada/initialize.c b/gcc/ada/initialize.c
new file mode 100644
index 000000000..32ea0e5c7
--- /dev/null
+++ b/gcc/ada/initialize.c
@@ -0,0 +1,362 @@
+/****************************************************************************
+ *                                                                          *
+ *                         GNAT COMPILER COMPONENTS                         *
+ *                                                                          *
+ *                           I N I T I A L I Z E                            *
+ *                                                                          *
+ *                          C Implementation File                           *
+ *                                                                          *
+ *          Copyright (C) 1992-2009, 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"
+
+/******************************************/
+/* __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 = xmalloc ((vallen + 1) * sizeof(TCHAR));
+    }
+  else
+    {
+      /* Add dir first */
+      dirlen = _tcslen (dir);
+
+      fullvalue = 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 = 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 ();
+
+  /* On targets where we use the ZCX scheme, we need to register the frame
+     tables at load/startup time.
+
+     For applications loaded as a set of "modules", the crtstuff objects
+     linked in (crtbegin.o/end.o) are tailored to provide this service
+     automatically, a-la C++ constructor fashion, triggered by the VxWorks
+     loader thanks to a special variable declaration in crtbegin.o (_ctors).
+
+     Automatic de-registration is handled symmetrically, a-la C++ destructor
+     fashion (with a _dtors variable also in crtbegin.o) triggered by the
+     dynamic unloader.
+
+     Note that since the tables shall be registered against a common
+     data structure, libgcc should be one of the modules (vs being partially
+     linked against all the others at build time) and shall be loaded first.
+
+     For applications linked with the kernel, the scheme above would lead to
+     duplicated symbols because the VxWorks kernel build "munches" by default,
+     so we link against crtbeginT.o instead of crtbegin.o, which doesn't
+     include the special variables. We know which set of crt objects is used
+     thanks to a boolean indicator present in both sets (__module_has_ctors),
+     and directly call the appropriate function here in the not-automatic
+     case. We'll never unload that, so there is no de-registration to worry
+     about.
+
+     For whole applications loaded as a single module, we may use one scheme
+     or the other, except for the mixed Ada/C++ case in which the first scheme
+     would fail for the same reason as in the linked-with-kernel situation.
+
+     The crt set selection is controlled by command line options via GCC's
+     STARTFILE_SPEC in rs6000/vxworks.h.  This is tightly synchronized with a
+     number of other GCC configuration and crtstuff changes, and we need to
+     ensure that those changes are there to activate this circuitry.  */
+
+#if (__GNUC__ >= 3) && (defined (_ARCH_PPC) || defined (__ppc))
+ {
+   /* The scheme described above is only useful for the actual ZCX case, and
+      we don't want any reference to the crt provided symbols otherwise.  We
+      may not link with any of the crt objects in the non-ZCX case, e.g. from
+      documented procedures instructing the use of -nostdlib, and references
+      to the ctors symbols here would just remain unsatisfied.
+
+      We have no way to avoid those references in the right conditions in this
+      C module, because we have nothing like a IN_ZCX_RTS macro.  This aspect
+      is then deferred to an Ada routine, which can do that based on a test
+      against a constant System flag value.  */
+
+   extern void __gnat_vxw_setup_for_eh (void);
+   __gnat_vxw_setup_for_eh ();
+ }
+#endif
+}
+
+#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