ChangeLog/libgcc

2007-06-14  Danny Smith  <dannysmith@users.sourceforge.net>

	* config.host(*-cygwin* |*-mingw* ): Add crtbegin.o, crtend.o to
	extra_parts. Add config/i386/t-cygming to tmake_file. 
	* config/i386/t-cygming: New file with rules for crtbegin.o, crtend.o.


ChangeLog/gcc

2007-06-14  Danny Smith  <dannysmith@users.sourceforge.net>

	* config/i386/cygming.h (DWARF_FRAME_REGNUM): Define.
	(DWARF2_UNWIND_INFO): Override default if configured with
	SJLJ EH disabled.
	* config/i386/cygwin.h (STARTFILE_SPEC): Add crtbegin.o.
	(ENDFILE_SPEC): Add crtend.o.
	* config/i386/mingw32.h (STARTFILE_SEC): Add crtbegin.o.
	(ENDFILE_SPEC): Add crtend.o.
	(TARGET_USE_JCR_SECTION): Define.
	(MD_UNWIND_SUPPORT): Define for 32-bit target.

	* config/i386/cygming-crtbegin.c: New file.
	* config/i386/cygming-crtend.c: New file.

2007-06-14  Pascal Obry Pascal Obry  <obry@adacore.com>

	* config/i386/w32-unwind.h: New file.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@125696 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 86 insertions, 0 deletions

diff --git a/gcc/config/i386/cygming-crtend.c b/gcc/config/i386/cygming-crtend.c
new file mode 100755
index 00000000000..92e133099e4
--- /dev/null
+++ b/gcc/config/i386/cygming-crtend.c
@@ -0,0 +1,86 @@
+/* crtend object for windows32 targets.
+   Copyright (C) 2007  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 2, or (at your option) any later
+version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+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.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.  */
+
+/* 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 deregister_frame_dtor (void) __attribute__ ((destructor (0)));
+
+
+static void
+register_frame_ctor (void)
+{
+  __gcc_register_frame ();
+}
+
+static void
+deregister_frame_dtor (void)
+{
+  __gcc_deregister_frame ();
+}