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annotate gcc/config/lm32/uclinux-elf.h @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents f6334be47118
children 84e7813d76e9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* Definitions for LM32 running Linux-based GNU systems using ELF
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2 Copyright (C) 1993-2017 Free Software Foundation, Inc.
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3 Contributed by Philip Blundell <philb@gnu.org>
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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 it
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8 under the terms of the GNU General Public License as published
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9 by the Free Software Foundation; either version 3, or (at your
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10 option) any later version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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15 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 /* elfos.h should have already been included. Now just override
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22 any conflicting definitions and add any extras. */
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23
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24 /* Do not assume anything about header files. */
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25 #undef NO_IMPLICIT_EXTERN_C
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26 #define NO_IMPLICIT_EXTERN_C
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27
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28 /* The GNU C++ standard library requires that these macros be defined. */
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29 #undef CPLUSPLUS_CPP_SPEC
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30 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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31
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32 /* Now we define the strings used to build the spec file. */
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33 #undef LIB_SPEC
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34 #define LIB_SPEC \
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35 "%{pthread:-lpthread} \
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36 %{shared:-lc} \
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37 %{!shared:-lc} "
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38
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39 #define LIBGCC_SPEC "-lgcc"
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40
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41 /* Provide a STARTFILE_SPEC appropriate for GNU/Linux. Here we add
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42 the GNU/Linux magical crtbegin.o file (see crtstuff.c) which
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43 provides part of the support for getting C++ file-scope static
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44 object constructed before entering `main'. */
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45
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46 #undef STARTFILE_SPEC
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47 #define STARTFILE_SPEC \
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48 "%{!shared: \
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49 %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
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50 %{!p:%{profile:gcrt1.o%s} \
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51 %{!profile:crt1.o%s}}}} \
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52 crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
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53
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54 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
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55 the GNU/Linux magical crtend.o file (see crtstuff.c) which
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56 provides part of the support for getting C++ file-scope static
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57 object constructed before entering `main', followed by a normal
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58 GNU/Linux "finalizer" file, `crtn.o'. */
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59
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60 #undef ENDFILE_SPEC
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61 #define ENDFILE_SPEC \
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62 "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
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63
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64 #undef LINK_SPEC
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65 #define LINK_SPEC "%{h*} \
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66 %{static:-Bstatic} \
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67 %{shared:-shared} \
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68 %{symbolic:-Bsymbolic} \
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69 %{rdynamic:-export-dynamic} \
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70 -dynamic-linker /lib/ld-linux.so.2"
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71
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72 #define TARGET_OS_CPP_BUILTINS() GNU_USER_TARGET_OS_CPP_BUILTINS()
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73
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74 #define LINK_GCC_C_SEQUENCE_SPEC \
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75 "%{static|static-pie:--start-group} %G %L \
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76 %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
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77
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78 #undef CC1_SPEC
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79 #define CC1_SPEC "%{G*} %{!fno-PIC:-fPIC}"