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/* Target definitions for Darwin (Mac OS X) systems.
   Copyright (C) 2006, 2007 Free Software Foundation, Inc.
   Contributed by Apple Inc.

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.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* Prefer DWARF2.  */
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
#define DARWIN_PREFER_DWARF

/* Since DWARF2 is default, conditions for running dsymutil are different.  */
#undef LINK_COMMAND_SPEC
#define LINK_COMMAND_SPEC "\
%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
    %(linker) %l %X %{d} %{s} %{t} %{Z} \
    %{A} %{e*} %{m} %{r} %{x} \
    %{o*}%{!o:-o a.out} \
    %{!A:%{!nostdlib:%{!nostartfiles:%S}}} \
    %{L*} %{fopenmp:%:include(libgomp.spec)%(link_gomp)}   \
    %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
    %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %G %L}} \
    %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}\n\
%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
    %{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \
    %{g*:%{!gstabs*:%{!g0: dsymutil %{o*:%*}%{!o:a.out}}}}}}}}}}}}"

/* libSystem contains unwind information for signal frames.  */
#define DARWIN_LIBSYSTEM_HAS_UNWIND

/* The linker can generate branch islands.  */
#define DARWIN_LINKER_GENERATES_ISLANDS 1

#undef  ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)		\
  do {									\
    unsigned HOST_WIDE_INT _new_size = (SIZE);				\
    fprintf ((FILE), ".comm ");						\
    assemble_name ((FILE), (NAME));					\
    if (_new_size == 0) _new_size = 1;					\
    fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",		\
	     _new_size, floor_log2 ((ALIGN) / BITS_PER_UNIT));		\
  } while (0)