annotate gcc/config/mips/openbsd.h @ 55:77e2b8dfacca gcc-4.4.5

update it from 4.4.3 to 4.5.0
author ryoma <e075725@ie.u-ryukyu.ac.jp>
date Fri, 12 Feb 2010 23:39:51 +0900
parents a06113de4d67
children f6334be47118
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1 /* Configuration for a MIPS ABI32 OpenBSD target.
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2 Copyright (C) 1999, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with GCC; see the file COPYING3. If not see
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18 <http://www.gnu.org/licenses/>. */
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19
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20 /* Definitions needed for OpenBSD, to avoid picking mips 'defaults'. */
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21
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22 /* GAS must know this. */
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23 #undef SUBTARGET_ASM_SPEC
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24 #define SUBTARGET_ASM_SPEC "%{fPIC|fPIE:-KPIC}"
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25
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26 #define AS_NEEDS_DASH_FOR_PIPED_INPUT
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27
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28 /* CPP specific OpenBSD specs. */
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29 #undef SUBTARGET_CPP_SPEC
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30 #define SUBTARGET_CPP_SPEC OBSD_CPP_SPEC
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31
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32 /* Needed for ELF (inspired by netbsd-elf). */
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33 #undef LOCAL_LABEL_PREFIX
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34 #define LOCAL_LABEL_PREFIX "."
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35
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36 /* The profiling lib spec here is not really correct but we leave
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37 it as it is until we have some kind of profiling working. */
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38 #define LIB_SPEC OBSD_LIB_SPEC
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39
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40 /* mips assembler uses .set for arcane purposes. __attribute__((alias))
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41 and friends won't work until we get recent binutils with .weakext
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42 support. */
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43 #undef SET_ASM_OP
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44
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45 #define TARGET_OS_CPP_BUILTINS() \
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46 do { \
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47 builtin_define ("__unix__"); \
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48 builtin_define ("__SYSTYPE_BSD__"); \
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49 builtin_define ("__NO_LEADING_UNDERSCORES__"); \
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50 builtin_define ("__GP_SUPPORT__"); \
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51 builtin_define ("__OpenBSD__"); \
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52 builtin_assert ("system=unix"); \
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53 builtin_assert ("system=OpenBSD"); \
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54 } while (0)
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55
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56 /* Layout of source language data types. */
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57
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58 /* This must agree with <machine/ansi.h>. */
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59 #undef SIZE_TYPE
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60 #define SIZE_TYPE "long unsigned int"
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61
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62 #undef PTRDIFF_TYPE
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63 #define PTRDIFF_TYPE "long int"
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64
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65 #undef WCHAR_TYPE
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66 #define WCHAR_TYPE "int"
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67
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68 #undef WCHAR_TYPE_SIZE
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69 #define WCHAR_TYPE_SIZE 32
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71 #undef WINT_TYPE
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72 #define WINT_TYPE "int"
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73
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74 /* Controlling the compilation driver. */
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75
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76 /* LINK_SPEC appropriate for OpenBSD: support for GCC options
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77 -static, -assert, and -nostdlib. Dynamic loader control. */
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78 #undef LINK_SPEC
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79 #define LINK_SPEC \
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80 "%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
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81 %{bestGnum} %{shared} %{non_shared} \
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82 %{call_shared} %{no_archive} %{exact_version} \
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83 %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \
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84 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so} \
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85 %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \
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86 %{static:-Bstatic} %{!static:-Bdynamic} %{assert*}"
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87
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88 /* -G is incompatible with -KPIC which is the default, so only allow objects
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89 in the small data section if the user explicitly asks for it. */
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90 #undef MIPS_DEFAULT_GVALUE
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91 #define MIPS_DEFAULT_GVALUE 0
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92
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93
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94 /* Since gas and gld are standard on OpenBSD, we don't need these. */
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95 #undef ASM_FINAL_SPEC
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96 #undef STARTFILE_SPEC
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97
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98 /* Switch into a generic section. */
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99 #undef TARGET_ASM_NAMED_SECTION
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100 #define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
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101
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102 /* MIPS specific debugging info */
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103 #define MIPS_DEBUGGING_INFO 1