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1 /* Target definitions for Darwin (Mac OS X) systems.
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2 Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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3 Contributed by Apple Inc.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 /* Prefer DWARF2. */
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22 #undef PREFERRED_DEBUGGING_TYPE
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23 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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24 #define DARWIN_PREFER_DWARF
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25
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26 /* Since DWARF2 is default, conditions for running dsymutil are different. */
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27 #undef LINK_COMMAND_SPEC
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28 #define LINK_COMMAND_SPEC "\
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29 %{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
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30 %(linker) %l %X %{d} %{s} %{t} %{Z} \
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31 %{A} %{e*} %{m} %{r} %{x} \
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32 %{o*}%{!o:-o a.out} \
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33 %{!A:%{!nostdlib:%{!nostartfiles:%S}}} \
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34 %{L*} %{fopenmp:%:include(libgomp.spec)%(link_gomp)} \
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35 %(link_libgcc) %o %{fprofile-arcs|fprofile-generate|coverage:-lgcov} \
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36 %{!nostdlib:%{!nodefaultlibs:%(link_ssp) %G %L}} \
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37 %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}\n\
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38 %{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
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39 %{.c|.cc|.C|.cpp|.cp|.c++|.cxx|.CPP|.m|.mm: \
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40 %{g*:%{!gstabs*:%{!g0: dsymutil %{o*:%*}%{!o:a.out}}}}}}}}}}}}"
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41
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42 /* libSystem contains unwind information for signal frames. */
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43 #define DARWIN_LIBSYSTEM_HAS_UNWIND
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44
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45 /* The linker can generate branch islands. */
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46 #define DARWIN_LINKER_GENERATES_ISLANDS 1
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47
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48 #undef ASM_OUTPUT_ALIGNED_COMMON
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49 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
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50 do { \
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51 unsigned HOST_WIDE_INT _new_size = (SIZE); \
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52 fprintf ((FILE), ".comm "); \
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53 assemble_name ((FILE), (NAME)); \
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54 if (_new_size == 0) _new_size = 1; \
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55 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
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56 _new_size, floor_log2 ((ALIGN) / BITS_PER_UNIT)); \
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57 } while (0)
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