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1 /* Definitions of target machine for GNU compiler, for ARM with PE obj format.
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2 Copyright (C) 1995, 1996, 1999, 2000, 2002, 2003, 2004, 2005, 2007
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3 Free Software Foundation, Inc.
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4 Contributed by Doug Evans (dje@cygnus.com).
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5
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6 This file is part of GCC.
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7
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8 GCC is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published
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10 by the Free Software Foundation; either version 3, or (at your
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11 option) any later version.
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12
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13 GCC is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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16 License for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with GCC; see the file COPYING3. If not see
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20 <http://www.gnu.org/licenses/>. */
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21
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22 /* Enable PE specific code. */
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23 #define ARM_PE 1
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24
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25 #define ARM_PE_FLAG_CHAR '@'
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26
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27 /* Ensure that @x. will be stripped from the function name. */
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28 #undef SUBTARGET_NAME_ENCODING_LENGTHS
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29 #define SUBTARGET_NAME_ENCODING_LENGTHS \
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30 case ARM_PE_FLAG_CHAR: return 3;
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31
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32 #undef USER_LABEL_PREFIX
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33 #define USER_LABEL_PREFIX "_"
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34
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35
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36 /* Run-time Target Specification. */
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37 #undef TARGET_VERSION
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38 #define TARGET_VERSION fputs (" (ARM/pe)", stderr)
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39
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40 /* Get tree.c to declare a target-specific specialization of
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41 merge_decl_attributes. */
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42 #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 1
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43
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44 #undef SUBTARGET_CPP_SPEC
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45 #define SUBTARGET_CPP_SPEC "-D__pe__"
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46
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47 #undef TARGET_DEFAULT
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48 #define TARGET_DEFAULT (MASK_NOP_FUN_DLLIMPORT)
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49
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50 #undef MULTILIB_DEFAULTS
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51 #define MULTILIB_DEFAULTS \
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52 { "marm", "mlittle-endian", "msoft-float", "mno-thumb-interwork" }
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53
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54 #undef WCHAR_TYPE
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55 #define WCHAR_TYPE "short unsigned int"
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56 #undef WCHAR_TYPE_SIZE
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57 #define WCHAR_TYPE_SIZE 16
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58
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59 /* r11 is fixed. */
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60 #undef SUBTARGET_CONDITIONAL_REGISTER_USAGE
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61 #define SUBTARGET_CONDITIONAL_REGISTER_USAGE \
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62 fixed_regs [11] = 1; \
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63 call_used_regs [11] = 1;
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64
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65
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66 /* PE/COFF uses explicit import from shared libraries. */
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67 #define MULTIPLE_SYMBOL_SPACES 1
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68
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69 #define TARGET_ASM_UNIQUE_SECTION arm_pe_unique_section
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70 #define TARGET_ASM_FUNCTION_RODATA_SECTION default_no_function_rodata_section
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71
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72 #define SUPPORTS_ONE_ONLY 1
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73
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74 /* Switch into a generic section. */
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75 #undef TARGET_ASM_NAMED_SECTION
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76 #define TARGET_ASM_NAMED_SECTION default_pe_asm_named_section
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77
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78 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
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79
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80 /* Output a reference to a label. */
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81 #undef ASM_OUTPUT_LABELREF
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82 #define ASM_OUTPUT_LABELREF(STREAM, NAME) \
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83 asm_fprintf (STREAM, "%U%s", arm_strip_name_encoding (NAME))
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84
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85 /* Output a function definition label. */
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86 #undef ASM_DECLARE_FUNCTION_NAME
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87 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
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88 do \
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89 { \
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90 if (arm_dllexport_name_p (NAME)) \
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91 { \
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92 drectve_section (); \
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93 fprintf (STREAM, "\t.ascii \" -export:%s\"\n", \
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94 arm_strip_name_encoding (NAME)); \
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95 switch_to_section (function_section (DECL)); \
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96 } \
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97 ARM_DECLARE_FUNCTION_NAME (STREAM, NAME, DECL); \
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98 if (TARGET_THUMB) \
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99 fprintf (STREAM, "\t.code 16\n"); \
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100 ASM_OUTPUT_LABEL (STREAM, NAME); \
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101 } \
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102 while (0)
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103
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104 /* Output a common block. */
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105 #undef ASM_OUTPUT_COMMON
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106 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
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107 do \
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108 { \
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109 if (arm_dllexport_name_p (NAME)) \
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110 { \
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111 drectve_section (); \
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112 fprintf ((STREAM), "\t.ascii \" -export:%s\"\n",\
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113 arm_strip_name_encoding (NAME)); \
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114 } \
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115 if (! arm_dllimport_name_p (NAME)) \
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116 { \
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117 fprintf ((STREAM), "\t.comm\t"); \
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118 assemble_name ((STREAM), (NAME)); \
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119 asm_fprintf ((STREAM), ", %d\t%@ %d\n", \
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120 (int)(ROUNDED), (int)(SIZE)); \
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121 } \
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122 } \
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123 while (0)
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124
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125 /* Output the label for an initialized variable. */
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126 #undef ASM_DECLARE_OBJECT_NAME
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127 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL) \
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128 do \
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129 { \
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130 if (arm_dllexport_name_p (NAME)) \
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131 { \
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132 section *save_section = in_section; \
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133 drectve_section (); \
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134 fprintf (STREAM, "\t.ascii \" -export:%s\"\n",\
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135 arm_strip_name_encoding (NAME)); \
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136 switch_to_section (save_section); \
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137 } \
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138 ASM_OUTPUT_LABEL ((STREAM), (NAME)); \
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139 } \
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140 while (0)
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141
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142 /* Support the ctors/dtors and other sections. */
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143
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144 #define DRECTVE_SECTION_ASM_OP "\t.section .drectve"
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145
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146 #define drectve_section() \
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147 (fprintf (asm_out_file, "%s\n", DRECTVE_SECTION_ASM_OP), \
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148 in_section = NULL)
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