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131
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1 /* Definitions of target machine for GNU compiler,
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2 for IBM RS/6000 POWER running AIX V7.2.
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3 Copyright (C) 2002-2017 Free Software Foundation, Inc.
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4 Contributed by David Edelsohn (edelsohn@gnu.org).
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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 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
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23 get control in TARGET_OPTION_OVERRIDE. */
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24
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25 #define SUBTARGET_OVERRIDE_OPTIONS \
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26 do { \
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27 if (TARGET_64BIT && ! TARGET_POWERPC64) \
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28 { \
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29 rs6000_isa_flags |= OPTION_MASK_POWERPC64; \
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30 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
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31 } \
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32 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \
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33 { \
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34 rs6000_long_double_type_size = 64; \
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35 if (global_options_set.x_rs6000_long_double_type_size) \
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36 warning (0, "soft-float and long-double-128 are incompatible"); \
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37 } \
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38 if (TARGET_POWERPC64 && ! TARGET_64BIT) \
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39 { \
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40 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
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41 } \
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42 if ((rs6000_isa_flags_explicit \
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43 & OPTION_MASK_MINIMAL_TOC) != 0) \
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44 { \
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45 if (global_options_set.x_rs6000_current_cmodel \
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46 && rs6000_current_cmodel != CMODEL_SMALL) \
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47 error ("-mcmodel incompatible with other toc options"); \
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48 SET_CMODEL (CMODEL_SMALL); \
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49 } \
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50 if (rs6000_current_cmodel != CMODEL_SMALL) \
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51 { \
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52 TARGET_NO_FP_IN_TOC = 0; \
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53 TARGET_NO_SUM_IN_TOC = 0; \
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54 } \
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55 if (rs6000_current_cmodel == CMODEL_MEDIUM) \
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56 { \
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57 rs6000_current_cmodel = CMODEL_LARGE; \
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58 } \
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59 } while (0)
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60
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61 #undef ASM_SPEC
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62 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
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63
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64 /* Common ASM definitions used by ASM_SPEC amongst the various targets for
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65 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to
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66 provide the default assembler options if the user uses -mcpu=native, so if
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67 you make changes here, make them there also. */
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68 #undef ASM_CPU_SPEC
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69 #define ASM_CPU_SPEC \
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70 "%{!mcpu*: %{!maix64: \
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71 %{mpowerpc64: -mppc64} \
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72 %{maltivec: -m970} \
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73 %{!maltivec: %{!mpowerpc64: %(asm_default)}}}} \
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74 %{mcpu=native: %(asm_cpu_native)} \
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75 %{mcpu=power3: -m620} \
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76 %{mcpu=power4: -mpwr4} \
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77 %{mcpu=power5: -mpwr5} \
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78 %{mcpu=power5+: -mpwr5x} \
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79 %{mcpu=power6: -mpwr6} \
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80 %{mcpu=power6x: -mpwr6} \
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81 %{mcpu=power7: -mpwr7} \
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82 %{mcpu=power8: -mpwr8} \
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83 %{mcpu=power9: -mpwr9} \
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84 %{mcpu=powerpc: -mppc} \
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85 %{mcpu=rs64a: -mppc} \
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86 %{mcpu=603: -m603} \
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87 %{mcpu=603e: -m603} \
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88 %{mcpu=604: -m604} \
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89 %{mcpu=604e: -m604} \
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90 %{mcpu=620: -m620} \
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91 %{mcpu=630: -m620} \
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92 %{mcpu=970: -m970} \
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93 %{mcpu=G5: -m970} \
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94 %{mvsx: %{!mcpu*: -mpwr7}} \
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95 -many"
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96
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97 #undef ASM_DEFAULT_SPEC
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98 #define ASM_DEFAULT_SPEC "-mpwr4"
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99
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100 #undef TARGET_OS_CPP_BUILTINS
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101 #define TARGET_OS_CPP_BUILTINS() \
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102 do \
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103 { \
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104 builtin_define ("_AIX43"); \
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105 builtin_define ("_AIX51"); \
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106 builtin_define ("_AIX52"); \
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107 builtin_define ("_AIX53"); \
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108 builtin_define ("_AIX61"); \
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109 builtin_define ("_AIX71"); \
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110 builtin_define ("_AIX72"); \
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111 TARGET_OS_AIX_CPP_BUILTINS (); \
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112 } \
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113 while (0)
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114
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115 #undef CPP_SPEC
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116 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
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117 %{ansi: -D_ANSI_C_SOURCE} \
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118 %{maix64: -D__64BIT__} \
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119 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
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120 %{pthread: -D_THREAD_SAFE}"
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121
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122 /* The GNU C++ standard library requires that these macros be
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123 defined. Synchronize with libstdc++ os_defines.h. */
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124 #undef CPLUSPLUS_CPP_SPEC
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125 #define CPLUSPLUS_CPP_SPEC \
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126 "-D_ALL_SOURCE -D__COMPATMATH__ \
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127 %{maix64: -D__64BIT__} \
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128 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
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129 %{pthread: -D_THREAD_SAFE}"
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130
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131 #define RS6000_CPU(NAME, CPU, FLAGS)
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132 #include "rs6000-cpus.def"
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133 #undef RS6000_CPU
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134
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135 #undef TARGET_DEFAULT
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136 #define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED
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137
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138 #undef PROCESSOR_DEFAULT
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139 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
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140 #undef PROCESSOR_DEFAULT64
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141 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
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142
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143 /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */
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144 #undef OS_MISSING_ALTIVEC
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145
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146 /* Define this macro as a C expression for the initializer of an
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147 array of string to tell the driver program which options are
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148 defaults for this target and thus do not need to be handled
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149 specially when using `MULTILIB_OPTIONS'.
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150
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151 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
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152 the target makefile fragment or if none of the options listed in
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153 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
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154
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155 #undef MULTILIB_DEFAULTS
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156
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157 #undef LIB_SPEC
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158 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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159 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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160 %{!maix64:%{!shared:%{g*:-lg}}}\
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161 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
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162 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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163 %{pthread:-lpthreads} -lc"
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164
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165 #undef LINK_SPEC
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166 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
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167 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
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168 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
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169 %{mpe:-binitfini:poe_remote_main}"
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170
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171 #undef STARTFILE_SPEC
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172 #define STARTFILE_SPEC "%{!shared:\
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173 %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\
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174 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\
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175 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\
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176 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s"
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177
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178 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
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179
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180 #undef PTRDIFF_TYPE
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181 #define PTRDIFF_TYPE "long int"
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182
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183 /* Type used for wchar_t, as a string used in a declaration. */
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184 #undef WCHAR_TYPE
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185 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
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186
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187 /* Width of wchar_t in bits. */
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188 #undef WCHAR_TYPE_SIZE
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189 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
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190
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191 /* AIX 4.2 and above provides initialization and finalization function
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192 support from linker command line. */
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193 #undef HAS_INIT_SECTION
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194 #define HAS_INIT_SECTION
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195
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196 #undef LD_INIT_SWITCH
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197 #define LD_INIT_SWITCH "-binitfini"
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198
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199 #ifndef _AIX52
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200 extern long long int atoll(const char *);
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201 #endif
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202
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203 /* This target uses the aix64.opt file. */
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204 #define TARGET_USES_AIX64_OPT 1
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205
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206 /* Large TOC Support */
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207 #ifdef HAVE_LD_LARGE_TOC
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208 #undef TARGET_CMODEL
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209 #define TARGET_CMODEL rs6000_current_cmodel
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210 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
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211 #else
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212 #define SET_CMODEL(opt) do {} while (0)
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213 #endif
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214
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215 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
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216 but does not have crtbegin/end. */
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217
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218 #define TARGET_AIX_VERSION 72
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219
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220 /* AIX 7.2 supports DWARF3 debugging, but XCOFF remains the default. */
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221 #define DWARF2_DEBUGGING_INFO 1
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222 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
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223 #define DEBUG_INFO_SECTION "0x10000"
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224 #define DEBUG_LINE_SECTION "0x20000"
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225 #define DEBUG_PUBNAMES_SECTION "0x30000"
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226 #define DEBUG_PUBTYPES_SECTION "0x40000"
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227 #define DEBUG_ARANGES_SECTION "0x50000"
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228 #define DEBUG_ABBREV_SECTION "0x60000"
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229 #define DEBUG_STR_SECTION "0x70000"
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230 #define DEBUG_RANGES_SECTION "0x80000"
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231 #define DEBUG_LOC_SECTION "0x90000"
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232 #define DEBUG_FRAME_SECTION "0xA0000"
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233 #define DEBUG_MACINFO_SECTION "0xB0000"
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234 #define DEBUG_MACRO_SECTION "0xB0000"
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235
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