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1 /* Core target definitions for GCC for Intel 80x86 running Netware.
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2 and using dwarf for the debugging format.
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3 Copyright (C) 1993, 1994, 2004, 2007, 2008 Free Software Foundation, Inc.
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4
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5 Written by David V. Henkel-Wallace (gumby@cygnus.com)
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6
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7 This file is part of GCC.
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8
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9 GCC is free software; you can redistribute it and/or modify
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10 it under the terms of the GNU General Public License as published by
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11 the Free Software Foundation; either version 3, or (at your option)
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12 any later version.
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13
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14 GCC is distributed in the hope that it will be useful,
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15 but WITHOUT ANY WARRANTY; without even the implied warranty of
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16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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17 GNU General Public License for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with GCC; see the file COPYING3. If not see
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21 <http://www.gnu.org/licenses/>. */
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22
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23 #define TARGET_VERSION fprintf (stderr, " (x86 NetWare)");
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24
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25 #undef CPP_SPEC
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26 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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27
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28 #undef LIB_SPEC
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29 #define LIB_SPEC ""
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30
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31 /* Kinda useless, but what the hell */
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32 #undef LINK_SPEC
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33 #define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
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34 %{b} \
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35 %{Qy:} %{!Qn:-Qy}"
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36
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37 #undef STARTFILE_SPEC
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38 #define STARTFILE_SPEC ""
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39
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40 #undef ENDFILE_SPEC
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41 #define ENDFILE_SPEC ""
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42
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43 #undef RELATIVE_PREFIX_NOT_LINKDIR
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44 #undef LIBGCC_SPEC
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45
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46 #define TARGET_OS_CPP_BUILTINS() \
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47 do \
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48 { \
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49 builtin_define_std ("IAPX386"); \
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50 builtin_define ("_M_IX86=300"); \
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51 builtin_define ("__netware__"); \
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52 builtin_assert ("system=netware"); \
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53 builtin_define ("__ELF__"); \
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54 builtin_define ("__cdecl=__attribute__((__cdecl__))"); \
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55 builtin_define ("__stdcall=__attribute__((__stdcall__))"); \
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56 builtin_define ("__fastcall=__attribute__((__fastcall__))"); \
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57 if (!flag_iso) \
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58 { \
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59 builtin_define ("_cdecl=__attribute__((__cdecl__))"); \
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60 builtin_define ("_stdcall=__attribute__((__stdcall__))"); \
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61 builtin_define ("_fastcall=__attribute__((__fastcall__))"); \
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62 } \
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63 } \
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64 while (0)
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65
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66 #undef TARGET_CPU_DEFAULT
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67 #define TARGET_CPU_DEFAULT TARGET_CPU_DEFAULT_pentium4
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68
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69 /* By default, target has a 80387, uses IEEE compatible arithmetic,
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70 returns float values in the 387, and uses MSVC bit field layout. */
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71 #undef TARGET_SUBTARGET_DEFAULT
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72 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | \
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73 MASK_FLOAT_RETURNS | MASK_ALIGN_DOUBLE | MASK_MS_BITFIELD_LAYOUT)
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74
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75 /* Sometimes certain combinations of command options do not make
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76 sense on a particular target machine. You can define a macro
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77 `OVERRIDE_OPTIONS' to take account of this. This macro, if
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78 defined, is executed once just after all the command options have
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79 been parsed.
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80
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81 Don't use this macro to turn on various extra optimizations for
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82 `-O'. That is what `OPTIMIZATION_OPTIONS' is for. */
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83 #undef OVERRIDE_OPTIONS
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84 extern void netware_override_options (void);
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85 #define OVERRIDE_OPTIONS netware_override_options ()
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86
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87 #undef MATH_LIBRARY
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88 #define MATH_LIBRARY ""
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89
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90 /* Align doubles and long-longs in structures on qword boundaries. */
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91 #undef BIGGEST_FIELD_ALIGNMENT
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92 #define BIGGEST_FIELD_ALIGNMENT 64
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93
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94 #undef DEFAULT_PCC_STRUCT_RETURN
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95 #define DEFAULT_PCC_STRUCT_RETURN 0
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96
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97 /* Implicit arguments pointing to aggregate return values are to be
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98 removed by the caller. */
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99 #undef KEEP_AGGREGATE_RETURN_POINTER
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100 #define KEEP_AGGREGATE_RETURN_POINTER 1
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101
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102 #undef DBX_REGISTER_NUMBER
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103 #define DBX_REGISTER_NUMBER(n) (svr4_dbx_register_map[n])
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104
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105 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
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106 #define HANDLE_PRAGMA_PACK_PUSH_POP
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107
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108 /* Default structure packing is 1-byte. */
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109 #define TARGET_DEFAULT_PACK_STRUCT 1
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110
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111 #undef WCHAR_TYPE
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112 #define WCHAR_TYPE "short unsigned int"
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113
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114 #undef WCHAR_TYPE_SIZE
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115 #define WCHAR_TYPE_SIZE 16
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116
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117 #undef WINT_TYPE
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118 #define WINT_TYPE "int"
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119
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120 /* A C statement (sans semicolon) to output to the stdio stream
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121 FILE the assembler definition of uninitialized global DECL named
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122 NAME whose size is SIZE bytes and alignment is ALIGN bytes.
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123 Try to use asm_output_aligned_bss to implement this macro. */
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124
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125 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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126 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
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127
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128 /* Handle special EH pointer encodings. Absolute, pc-relative, and
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129 indirect are handled automatically. */
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130 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
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131 do { \
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132 if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel) \
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133 { \
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134 fputs (ASM_LONG, FILE); \
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135 assemble_name (FILE, XSTR (ADDR, 0)); \
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136 fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), FILE); \
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137 goto DONE; \
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138 } \
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139 } while (0)
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140
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141 /* there is no TLS support in NLMs/on NetWare */
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142 #undef HAVE_AS_TLS
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143
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144 #define HAS_INIT_SECTION
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145 #undef INIT_SECTION_ASM_OP
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146
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147 #define CTOR_LISTS_DEFINED_EXTERNALLY
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148
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149 #undef READONLY_DATA_SECTION_ASM_OP
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150 #define READONLY_DATA_SECTION_ASM_OP ".section\t.rodata"
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151
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152 /* Define this macro if references to a symbol must be treated
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153 differently depending on something about the variable or
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154 function named by the symbol (such as what section it is in).
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155
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156 On i386 running NetWare, modify the assembler name with an underscore (_)
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157 or atsign (@) prefix and a suffix consisting of an atsign (@) followed by
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158 a string of digits that represents the number of bytes of arguments passed
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159 to the function, if it has the attribute STDCALL. Alternatively, if it has
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160 the REGPARM attribute, prefix it with an underscore (_), a digit
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161 representing the number of registers used, and an atsign (@). */
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162 void i386_nlm_encode_section_info (tree, rtx, int);
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163 extern tree i386_nlm_mangle_decl_assembler_name (tree, tree);
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164 const char *i386_nlm_strip_name_encoding (const char *);
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165 #define SUBTARGET_ENCODE_SECTION_INFO i386_nlm_encode_section_info
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166 #define TARGET_MANGLE_DECL_ASSEMBLER_NAME i386_nlm_mangle_decl_assembler_name
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167 #undef TARGET_STRIP_NAME_ENCODING
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168 #define TARGET_STRIP_NAME_ENCODING i386_nlm_strip_name_encoding
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