852b75ed97
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
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/* crtbegin object for windows32 targets.
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Copyright (C) 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
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Contributed by Danny Smith <dannysmith@users.sourceforge.net>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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/* Target machine header files require this define. */
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#define IN_LIBGCC2
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#include "auto-host.h"
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#include "tconfig.h"
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#include "tsystem.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "libgcc_tm.h"
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#include "unwind-dw2-fde.h"
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#ifndef LIBGCC_SONAME
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#define LIBGCC_SONAME "libgcc_s.dll"
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#endif
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#ifndef LIBGCJ_SONAME
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#define LIBGCJ_SONAME "libgcj_s.dll"
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#endif
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/* Make the declarations weak. This is critical for
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_Jv_RegisterClasses because it lives in libgcj.a */
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extern void __register_frame_info (const void *, struct object *)
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TARGET_ATTRIBUTE_WEAK;
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extern void *__deregister_frame_info (const void *)
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TARGET_ATTRIBUTE_WEAK;
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extern void _Jv_RegisterClasses (const void *) TARGET_ATTRIBUTE_WEAK;
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#if defined(HAVE_LD_RO_RW_SECTION_MIXING)
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# define EH_FRAME_SECTION_CONST const
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#else
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# define EH_FRAME_SECTION_CONST
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#endif
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/* Stick a label at the beginning of the frame unwind info so we can
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register/deregister it with the exception handling library code. */
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#if DWARF2_UNWIND_INFO
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static EH_FRAME_SECTION_CONST char __EH_FRAME_BEGIN__[]
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__attribute__((used, section(EH_FRAME_SECTION_NAME), aligned(4)))
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= { };
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static struct object obj;
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#endif
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#if TARGET_USE_JCR_SECTION
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static void *__JCR_LIST__[]
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__attribute__ ((used, section(JCR_SECTION_NAME), aligned(4)))
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= { };
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#endif
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/* Pull in references from libgcc.a(unwind-dw2-fde.o) in the
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startfile. These are referenced by a ctor and dtor in crtend.o. */
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extern void __gcc_register_frame (void);
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extern void __gcc_deregister_frame (void);
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void
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__gcc_register_frame (void)
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{
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#if DWARF2_UNWIND_INFO
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/* Weak undefined symbols won't be pulled in from dlls; hence
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we first test if the dll is already loaded and, if so,
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get the symbol's address at run-time. If the dll is not loaded,
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fallback to weak linkage to static archive. */
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void (*register_frame_fn) (const void *, struct object *);
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HANDLE h = GetModuleHandle (LIBGCC_SONAME);
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if (h)
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register_frame_fn = (void (*) (const void *, struct object *))
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GetProcAddress (h, "__register_frame_info");
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else
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register_frame_fn = __register_frame_info;
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if (register_frame_fn)
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register_frame_fn (__EH_FRAME_BEGIN__, &obj);
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#endif
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#if TARGET_USE_JCR_SECTION
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if (__JCR_LIST__[0])
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{
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void (*register_class_fn) (const void *);
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HANDLE h = GetModuleHandle (LIBGCJ_SONAME);
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if (h)
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register_class_fn = (void (*) (const void *))
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GetProcAddress (h, "_Jv_RegisterClasses");
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else
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register_class_fn = _Jv_RegisterClasses;
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if (register_class_fn)
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register_class_fn (__JCR_LIST__);
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}
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#endif
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}
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void
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__gcc_deregister_frame (void)
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{
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#if DWARF2_UNWIND_INFO
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void * (*deregister_frame_fn) (const void *);
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HANDLE h = GetModuleHandle (LIBGCC_SONAME);
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if (h)
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deregister_frame_fn = (void* (*) (const void *))
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GetProcAddress (h, "__deregister_frame_info");
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else
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deregister_frame_fn = __deregister_frame_info;
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if (deregister_frame_fn)
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deregister_frame_fn (__EH_FRAME_BEGIN__);
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#endif
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}
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