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-rw-r--r--gcc-4.9/libgcc/config/i386/cygming-crtend.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/gcc-4.9/libgcc/config/i386/cygming-crtend.c b/gcc-4.9/libgcc/config/i386/cygming-crtend.c
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+++ b/gcc-4.9/libgcc/config/i386/cygming-crtend.c
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+/* crtend object for windows32 targets.
+ Copyright (C) 2007-2014 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 "libgcc_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__ ((used, 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__ ((used, 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