gcc/libgcc/config/i386/cygming-crtbegin.c
Rainer Orth 852b75ed97 Move libgcc_tm_file to toplevel libgcc
gcc:
	* configure.ac (libgcc_tm_file_list, libgcc_tm_include_list):
	Remove.
	* configure: Regenerate.
	* Makefile.in (libgcc_tm_file_list, libgcc_tm_include_list): Remove.
	(TM_H): Remove libgcc_tm.h, $(libgcc_tm_file_list).
	(libgcc_tm.h, cs-libgcc_tm.h): Remove.
	(clean): Remove libgcc_tm.h
	* mkconfig.sh: Don't include libgcc_tm.h in tm.h.
	* config.gcc (libgcc_tm_file): Remove.
	(arm*-*-linux*): Remove libgcc_tm_file for arm*-*-linux-*eabi.
	(arm*-*-uclinux*): Remove libgcc_tm_file for arm*-*-uclinux*eabi.
	(arm*-*-eabi*, arm*-*-symbianelf*): Remove libgcc_tm_file.
	(avr-*-rtems*): Likewise.
	(avr-*-*): Likewise.
	(frv-*-elf): Likewise.
	(frv-*-*linux*): Likewise.
	(h8300-*-rtems*): Likewise.
	(h8300-*-elf*): Likewise.
	(i[34567]86-*-darwin*): Likewise.
	(x86_64-*-darwin*): Likewise.
	(rx-*-elf*): Likewise.
	(tic6x-*-elf): Likewise.
	(tic6x-*-uclinux): Likewise.
	(i[34567]86-*-linux*, x86_64-*-linux*): Likewise.

	libgcc:
	* configure.ac (tm_file_): New variable.
	Determine from tm_file.
	(tm_file, tm_defines): Substitute.
	* configure: Regenerate.
	* mkheader.sh: New file.
	* Makefile.in (clean): Remove libgcc_tm.h.
	($(objects)): Depend on libgcc_tm.h.
	(libgcc_tm_defines, libgcc_tm_file): New variables.
	(libgcc_tm.h, libgcc_tm.stamp): New targets.
	($(libgcc-objects), $(libgcc-s-objects), $(libgcc-eh-objects))
	($(libgcov-objects), $(libunwind-objects), $(libunwind-s-objects))
	($(extra-parts)): Depend on libgcc_tm.h.
	* config.host (tm_defines, tm_file): New variable.
	(arm*-*-linux*): Set tm_file for arm*-*-linux-*eabi.
	(arm*-*-uclinux*): Set tm_file for arm*-*-uclinux*eabi.
	(arm*-*-eabi*, arm*-*-symbianelf*): Set tm_file.
	(avr-*-rtems*): Likewise.
	(avr-*-*): Likewise.
	(frv-*-elf): Likewise.
	(frv-*-*linux*): Likewise.
	(h8300-*-rtems*): Likewise.
	(h8300-*-elf*): Likewise.
	(i[34567]86-*-darwin*): Likewise.
	(x86_64-*-darwin*): Likewise.
	(rx-*-elf): Likewise.
	(tic6x-*-uclinux): Likewise.
	(tic6x-*-elf): Likewise.
	(i[34567]86-*-linux*, x86_64-*-linux*): Likewise.
	* config/alpha/gthr-posix.c: Include libgcc_tm.h.
	* config/i386/cygming-crtbegin.c: Likewise.
	* config/i386/cygming-crtend.c: Likewise.
	* config/ia64/fde-vms.c: Likewise.
	* config/ia64/unwind-ia64.c: Likewise.
	* config/libbid/bid_gcc_intrinsics.h: Likewise.
	* config/rs6000/darwin-fallback.c: Likewise.
	* config/stormy16/lib2funcs.c: Likewise.
	* config/xtensa/unwind-dw2-xtensa.c: Likewise.
	* crtstuff.c: Likewise.
	* dfp-bit.h: Likewise.
	* emutls.c: Likewise.
	* fixed-bit.c: Likewise.
	* fp-bit.c: Likewise.
	* generic-morestack-thread.c: Likewise.
	* generic-morestack.c: Likewise.
	* libgcc2.c: Likewise.
	* libgcov.c: Likewise.
	* unwind-dw2-fde-dip.c: Likewise.
	* unwind-dw2-fde.c: Likewise.
	* unwind-dw2.c: Likewise.
	* unwind-sjlj.c: Likewise.

Co-Authored-By: Paolo Bonzini <bonzini@gnu.org>

From-SVN: r180775
2011-11-02 15:26:35 +00:00

137 lines
4.0 KiB
C

/* crtbegin object for windows32 targets.
Copyright (C) 2007, 2009, 2010, 2011 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
#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"
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#ifndef LIBGCC_SONAME
#define LIBGCC_SONAME "libgcc_s.dll"
#endif
#ifndef LIBGCJ_SONAME
#define LIBGCJ_SONAME "libgcj_s.dll"
#endif
/* Make the declarations weak. This is critical for
_Jv_RegisterClasses because it lives in libgcj.a */
extern void __register_frame_info (const void *, struct object *)
TARGET_ATTRIBUTE_WEAK;
extern void *__deregister_frame_info (const void *)
TARGET_ATTRIBUTE_WEAK;
extern void _Jv_RegisterClasses (const void *) TARGET_ATTRIBUTE_WEAK;
#if defined(HAVE_LD_RO_RW_SECTION_MIXING)
# define EH_FRAME_SECTION_CONST const
#else
# define EH_FRAME_SECTION_CONST
#endif
/* Stick a label at the beginning of the frame unwind info so we can
register/deregister it with the exception handling library code. */
#if DWARF2_UNWIND_INFO
static EH_FRAME_SECTION_CONST char __EH_FRAME_BEGIN__[]
__attribute__((used, section(EH_FRAME_SECTION_NAME), aligned(4)))
= { };
static struct object obj;
#endif
#if TARGET_USE_JCR_SECTION
static void *__JCR_LIST__[]
__attribute__ ((used, section(JCR_SECTION_NAME), aligned(4)))
= { };
#endif
/* Pull in references from libgcc.a(unwind-dw2-fde.o) in the
startfile. These are referenced by a ctor and dtor in crtend.o. */
extern void __gcc_register_frame (void);
extern void __gcc_deregister_frame (void);
void
__gcc_register_frame (void)
{
#if DWARF2_UNWIND_INFO
/* Weak undefined symbols won't be pulled in from dlls; hence
we first test if the dll is already loaded and, if so,
get the symbol's address at run-time. If the dll is not loaded,
fallback to weak linkage to static archive. */
void (*register_frame_fn) (const void *, struct object *);
HANDLE h = GetModuleHandle (LIBGCC_SONAME);
if (h)
register_frame_fn = (void (*) (const void *, struct object *))
GetProcAddress (h, "__register_frame_info");
else
register_frame_fn = __register_frame_info;
if (register_frame_fn)
register_frame_fn (__EH_FRAME_BEGIN__, &obj);
#endif
#if TARGET_USE_JCR_SECTION
if (__JCR_LIST__[0])
{
void (*register_class_fn) (const void *);
HANDLE h = GetModuleHandle (LIBGCJ_SONAME);
if (h)
register_class_fn = (void (*) (const void *))
GetProcAddress (h, "_Jv_RegisterClasses");
else
register_class_fn = _Jv_RegisterClasses;
if (register_class_fn)
register_class_fn (__JCR_LIST__);
}
#endif
}
void
__gcc_deregister_frame (void)
{
#if DWARF2_UNWIND_INFO
void * (*deregister_frame_fn) (const void *);
HANDLE h = GetModuleHandle (LIBGCC_SONAME);
if (h)
deregister_frame_fn = (void* (*) (const void *))
GetProcAddress (h, "__deregister_frame_info");
else
deregister_frame_fn = __deregister_frame_info;
if (deregister_frame_fn)
deregister_frame_fn (__EH_FRAME_BEGIN__);
#endif
}