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1 /* Definitions of target machine for GCC, for ELF on NetBSD/sparc
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2 and NetBSD/sparc64.
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3 Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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4 Contributed by Matthew Green (mrg@eterna.com.au).
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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
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9 it under the terms of the GNU General Public License as published by
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10 the Free Software Foundation; either version 3, or (at your option)
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11 any later version.
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12
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13 GCC is distributed in the hope that it will be useful,
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14 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 GNU General Public 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 #define TARGET_OS_CPP_BUILTINS() \
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23 do \
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24 { \
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25 NETBSD_OS_CPP_BUILTINS_ELF(); \
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26 if (TARGET_ARCH64) \
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27 { \
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28 builtin_define ("__sparc64__"); \
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29 builtin_define ("__sparc_v9__"); \
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30 builtin_define ("__sparcv9"); \
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31 } \
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32 else \
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33 builtin_define ("__sparc"); \
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34 builtin_define ("__sparc__"); \
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35 } \
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36 while (0)
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37
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38 /* Make sure these are undefined. */
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39 #undef MD_EXEC_PREFIX
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40 #undef MD_STARTFILE_PREFIX
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41
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42 /* CPP defines used by all NetBSD targets. */
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43 #undef CPP_SUBTARGET_SPEC
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44 #define CPP_SUBTARGET_SPEC "%(netbsd_cpp_spec)"
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45
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46 /* SIZE_TYPE and PTRDIFF_TYPE are wrong from sparc/sparc.h. */
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47 #undef SIZE_TYPE
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48 #define SIZE_TYPE "long unsigned int"
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49
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50 #undef PTRDIFF_TYPE
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51 #define PTRDIFF_TYPE "long int"
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52
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53 /* This is the char to use for continuation (in case we need to turn
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54 continuation back on). */
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55 #undef DBX_CONTIN_CHAR
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56 #define DBX_CONTIN_CHAR '?'
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57
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58 #undef LOCAL_LABEL_PREFIX
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59 #define LOCAL_LABEL_PREFIX "."
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60
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61 /* This is how to store into the string LABEL
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62 the symbol_ref name of an internal numbered label where
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63 PREFIX is the class of label and NUM is the number within the class.
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64 This is suitable for output with `assemble_name'. */
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65
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66 #undef ASM_GENERATE_INTERNAL_LABEL
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67 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
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68 sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
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69
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70 #undef USER_LABEL_PREFIX
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71 #define USER_LABEL_PREFIX ""
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72
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73 #undef ASM_SPEC
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74 #define ASM_SPEC "%{fpic|fPIC|fpie|fPIE:-K PIC} %{V} %{v:%{!V:-V}} \
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75 %{mlittle-endian:-EL} \
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76 %(asm_cpu) %(asm_arch) %(asm_relax)"
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77
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78 #undef STDC_0_IN_SYSTEM_HEADERS
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79
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80 /* Attempt to enable execute permissions on the stack. */
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81 #define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
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82
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83 #undef TARGET_VERSION
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84 #define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
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85
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86 /* Below here exists the merged NetBSD/sparc & NetBSD/sparc64 compiler
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87 description, allowing one to build 32-bit or 64-bit applications
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88 on either. We define the sparc & sparc64 versions of things,
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89 occasionally a neutral version (should be the same as "netbsd-elf.h")
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90 and then based on SPARC_BI_ARCH, DEFAULT_ARCH32_P, and TARGET_CPU_DEFAULT,
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91 we choose the correct version. */
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92
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93 /* We use the default NetBSD ELF STARTFILE_SPEC and ENDFILE_SPEC
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94 definitions, even for the SPARC_BI_ARCH compiler, because NetBSD does
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95 not have a default place to find these libraries.. */
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96
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97 /* Name the port(s). */
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98 #define TARGET_NAME64 "NetBSD/sparc64 ELF"
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99 #define TARGET_NAME32 "NetBSD/sparc ELF"
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100
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101 /* TARGET_CPU_DEFAULT is set in Makefile.in. We test for 64-bit default
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102 platform here. */
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103
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104 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
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105 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
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106 /* A 64 bit v9 compiler with stack-bias,
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107 in a Medium/Low code model environment. */
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108
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109 #undef TARGET_DEFAULT
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110 #define TARGET_DEFAULT \
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111 (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
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112 + MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
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113
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114 #undef SPARC_DEFAULT_CMODEL
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115 #define SPARC_DEFAULT_CMODEL CM_MEDANY
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116
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117 #endif
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118
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119 /* CC1_SPEC for NetBSD/sparc. */
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120 #define CC1_SPEC32 \
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121 "%{sun4:} %{target:} \
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122 %{mcypress:-mcpu=cypress} \
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123 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
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124 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
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125 %{m32:%{m64:%emay not use both -m32 and -m64}} \
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126 %{m64: \
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127 -mptr64 -mstack-bias -mno-v8plus -mlong-double-128 \
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128 %{!mcpu*: \
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129 %{!mcypress: \
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130 %{!msparclite: \
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131 %{!mf930: \
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132 %{!mf934: \
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133 %{!mv8*: \
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134 %{!msupersparc:-mcpu=ultrasparc}}}}}}} \
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135 %{!mno-vis:%{!mcpu=v9:-mvis}} \
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136 %{p:-mcmodel=medlow} \
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137 %{pg:-mcmodel=medlow}}"
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138
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139 #define CC1_SPEC64 \
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140 "%{sun4:} %{target:} \
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141 %{mcypress:-mcpu=cypress} \
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142 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
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143 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
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144 %{m32:%{m64:%emay not use both -m32 and -m64}} \
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145 %{m32: \
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146 -mptr32 -mno-stack-bias \
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147 %{!mlong-double-128:-mlong-double-64} \
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148 %{!mcpu*: \
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149 %{!mcypress: \
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150 %{!msparclite: \
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151 %{!mf930: \
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152 %{!mf934: \
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153 %{!mv8*: \
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154 %{!msupersparc:-mcpu=cypress}}}}}}}} \
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155 %{!m32: \
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156 %{p:-mcmodel=medlow} \
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157 %{pg:-mcmodel=medlow}}"
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158
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159 /* Make sure we use the right output format. Pick a default and then
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160 make sure -m32/-m64 switch to the right one. */
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161
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162 #define LINK_ARCH32_SPEC "-m elf32_sparc"
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163
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164 #define LINK_ARCH64_SPEC "-m elf64_sparc"
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165
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166 #define LINK_ARCH_SPEC \
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167 "%{m32:%(link_arch32)} \
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168 %{m64:%(link_arch64)} \
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169 %{!m32:%{!m64:%(link_arch_default)}}"
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170
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171 #undef LINK_SPEC
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172 #define LINK_SPEC \
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173 "%(link_arch) \
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174 %{!mno-relax:%{!r:-relax}} \
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175 %(netbsd_link_spec)"
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176
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177 #define NETBSD_ENTRY_POINT "__start"
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178
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179 #if DEFAULT_ARCH32_P
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180 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH32_SPEC
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181 #else
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182 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH64_SPEC
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183 #endif
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184
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185 /* What extra spec entries do we need? */
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186 #undef SUBTARGET_EXTRA_SPECS
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187 #define SUBTARGET_EXTRA_SPECS \
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188 { "link_arch32", LINK_ARCH32_SPEC }, \
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189 { "link_arch64", LINK_ARCH64_SPEC }, \
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190 { "link_arch_default", LINK_ARCH_DEFAULT_SPEC }, \
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191 { "link_arch", LINK_ARCH_SPEC }, \
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192 { "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \
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193 { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
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194 { "netbsd_entry_point", NETBSD_ENTRY_POINT },
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195
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196
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197 /* Build a compiler that supports -m32 and -m64? */
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198
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199 #ifdef SPARC_BI_ARCH
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200
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201 #undef LONG_DOUBLE_TYPE_SIZE
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202 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
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203
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204 #if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
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205 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
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206 #else
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207 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
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208 #endif
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209
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210 #undef CC1_SPEC
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211 #if DEFAULT_ARCH32_P
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212 #define CC1_SPEC CC1_SPEC32
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213 #else
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214 #define CC1_SPEC CC1_SPEC64
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215 #endif
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216
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217 #if DEFAULT_ARCH32_P
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218 #define MULTILIB_DEFAULTS { "m32" }
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219 #else
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220 #define MULTILIB_DEFAULTS { "m64" }
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221 #endif
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222
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223 /* Name the port. */
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224 #undef TARGET_NAME
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225 #define TARGET_NAME (DEFAULT_ARCH32_P ? TARGET_NAME32 : TARGET_NAME64)
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226
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227 #else /* SPARC_BI_ARCH */
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228
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229 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
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230 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
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231
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232 #undef LONG_DOUBLE_TYPE_SIZE
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233 #define LONG_DOUBLE_TYPE_SIZE 128
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234
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235 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
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236 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
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237
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238 #undef CC1_SPEC
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239 #define CC1_SPEC CC1_SPEC64
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240
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241 #undef TARGET_NAME
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242 #define TARGET_NAME TARGET_NAME64
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243
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244 #else /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
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245 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
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246
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247 /* A 32-bit only compiler. NetBSD don't support 128 bit `long double'
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248 for 32-bit code, unlike Solaris. */
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249
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250 #undef LONG_DOUBLE_TYPE_SIZE
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251 #define LONG_DOUBLE_TYPE_SIZE 64
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252
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253 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
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254 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
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255
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256 #undef CC1_SPEC
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257 #define CC1_SPEC CC1_SPEC32
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258
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259 #undef TARGET_NAME
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260 #define TARGET_NAME TARGET_NAME32
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261
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262 #endif /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
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263 || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
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264
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265 #endif /* SPARC_BI_ARCH */
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266
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267 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */
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268 #undef CTORS_SECTION_ASM_OP
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269 #undef DTORS_SECTION_ASM_OP
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