Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / i386 / cygming-crtend.c

diff --git a/gcc/config/i386/cygming-crtend.c b/gcc/config/i386/cygming-crtend.c
new file mode 100644 (file)
index 0000000..8c853bf
--- /dev/null
+++ b/gcc/config/i386/cygming-crtend.c
@@ -0,0 +1,88 @@
+/* crtend object for windows32 targets.
+   Copyright (C) 2007, 2008, 2009  Free Software Foundation, Inc.
+
+   Contributed by Danny Smith <dannysmith@users.sourceforge.net>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+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/>.  */
+
+/* Target machine header files require this define. */
+#define IN_LIBGCC2
+
+/* auto-host.h is needed by cygming.h for HAVE_GAS_WEAK and here
+   for HAVE_LD_RO_RW_SECTION_MIXING.  */  
+#include "auto-host.h"
+#include "tconfig.h"
+#include "tsystem.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "unwind-dw2-fde.h"
+
+#if defined(HAVE_LD_RO_RW_SECTION_MIXING)
+# define EH_FRAME_SECTION_CONST const
+#else
+# define EH_FRAME_SECTION_CONST
+#endif
+
+#if DWARF2_UNWIND_INFO
+/* Terminate the frame unwind info section with a 0 as a sentinel;
+   this would be the 'length' field in a real FDE.  */
+
+static EH_FRAME_SECTION_CONST int __FRAME_END__[]
+  __attribute__ ((unused,  section(EH_FRAME_SECTION_NAME),
+                 aligned(4)))
+  = { 0 };
+#endif
+
+#if TARGET_USE_JCR_SECTION
+/* Null terminate the .jcr section array.  */
+static void *__JCR_END__[1] 
+   __attribute__ ((unused, section(JCR_SECTION_NAME),
+                  aligned(sizeof(void *))))
+   = { 0 };
+#endif
+
+extern void __gcc_register_frame (void); 
+extern void __gcc_deregister_frame (void);
+
+static void register_frame_ctor (void) __attribute__ ((constructor (0)));
+
+static void
+register_frame_ctor (void)
+{
+  __gcc_register_frame ();
+#if DEFAULT_USE_CXA_ATEXIT
+  /* If we use the __cxa_atexit method to register C++ dtors
+     at object construction,  also use atexit to register eh frame
+     info cleanup.  */
+  atexit (__gcc_deregister_frame);
+#endif
+}
+
+#if !DEFAULT_USE_CXA_ATEXIT
+static void deregister_frame_dtor (void) __attribute__ ((destructor (0)));
+
+static void
+deregister_frame_dtor (void)
+{
+  __gcc_deregister_frame ();
+}
+#endif