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111
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1 /* Definitions of target machine for GNU compiler,
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2 for IBM RS/6000 POWER running AIX V5.2.
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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 } while (0);
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43
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44 #undef ASM_SPEC
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45 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
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46
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47 /* Common ASM definitions used by ASM_SPEC amongst the various targets
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48 for handling -mcpu=xxx switches. */
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49 #undef ASM_CPU_SPEC
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50 #define ASM_CPU_SPEC \
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51 "%{!mcpu*: %{!maix64: \
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52 %{mpowerpc64: -mppc64} \
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53 %{!mpowerpc64: %(asm_default)}}} \
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54 %{mcpu=power3: -m620} \
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55 %{mcpu=power4: -m620} \
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56 %{mcpu=power5: -m620} \
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57 %{mcpu=power5+: -m620} \
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58 %{mcpu=power6: -m620} \
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59 %{mcpu=power6x: -m620} \
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60 %{mcpu=powerpc: -mppc} \
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61 %{mcpu=rs64a: -mppc} \
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62 %{mcpu=603: -m603} \
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63 %{mcpu=603e: -m603} \
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64 %{mcpu=604: -m604} \
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65 %{mcpu=604e: -m604} \
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66 %{mcpu=620: -m620} \
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67 %{mcpu=630: -m620} \
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68 %{mcpu=970: -m620} \
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69 %{mcpu=G5: -m620}"
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70
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71 #undef ASM_DEFAULT_SPEC
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72 #define ASM_DEFAULT_SPEC "-mppc"
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73
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74 #undef TARGET_OS_CPP_BUILTINS
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75 #define TARGET_OS_CPP_BUILTINS() \
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76 do \
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77 { \
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78 builtin_define ("_AIX43"); \
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79 builtin_define ("_AIX51"); \
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80 builtin_define ("_AIX52"); \
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81 TARGET_OS_AIX_CPP_BUILTINS (); \
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82 } \
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83 while (0)
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84
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85 #undef CPP_SPEC
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86 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
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87 %{ansi: -D_ANSI_C_SOURCE} \
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88 %{maix64: -D__64BIT__} \
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89 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
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90 %{pthread: -D_THREAD_SAFE}"
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91
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92 /* The GNU C++ standard library requires that these macros be
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93 defined. Synchronize with libstdc++ os_defines.h. */
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94 #undef CPLUSPLUS_CPP_SPEC
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95 #define CPLUSPLUS_CPP_SPEC \
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96 "-D_ALL_SOURCE \
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97 %{maix64: -D__64BIT__} \
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98 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
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99 %{pthread: -D_THREAD_SAFE}"
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100
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101 #undef TARGET_DEFAULT
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102 #define TARGET_DEFAULT 0
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103
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104 #undef PROCESSOR_DEFAULT
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105 #define PROCESSOR_DEFAULT PROCESSOR_POWER4
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106 #undef PROCESSOR_DEFAULT64
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107 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
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108
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109 /* AIX does not support Altivec. */
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110 #undef TARGET_ALTIVEC
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111 #define TARGET_ALTIVEC 0
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112 #undef TARGET_ALTIVEC_ABI
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113 #define TARGET_ALTIVEC_ABI 0
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114 #undef TARGET_EXTRA_BUILTINS
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115 #define TARGET_EXTRA_BUILTINS 0
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116
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117 /* Define this macro as a C expression for the initializer of an
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118 array of string to tell the driver program which options are
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119 defaults for this target and thus do not need to be handled
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120 specially when using `MULTILIB_OPTIONS'.
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121
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122 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
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123 the target makefile fragment or if none of the options listed in
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124 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
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125
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126 #undef MULTILIB_DEFAULTS
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127
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128 #undef LIB_SPEC
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129 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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130 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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131 %{!maix64:%{!shared:%{g*:-lg}}}\
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132 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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133 %{pthread:-lpthreads} -lc"
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134
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135 #undef LINK_SPEC
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136 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
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137 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
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138 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
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139 %{mpe:-binitfini:poe_remote_main}"
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140
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141 #undef STARTFILE_SPEC
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142 #define STARTFILE_SPEC "%{!shared:\
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143 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
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144 %{!maix64:\
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145 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
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146 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
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147
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148 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
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149
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150 #undef PTRDIFF_TYPE
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151 #define PTRDIFF_TYPE "long int"
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152
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153 /* Type used for wchar_t, as a string used in a declaration. */
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154 #undef WCHAR_TYPE
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155 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
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156
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157 /* Width of wchar_t in bits. */
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158 #undef WCHAR_TYPE_SIZE
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159 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
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160
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161 /* AIX 4.2 and above provides initialization and finalization function
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162 support from linker command line. */
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163 #undef HAS_INIT_SECTION
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164 #define HAS_INIT_SECTION
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165
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166 #undef LD_INIT_SWITCH
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167 #define LD_INIT_SWITCH "-binitfini"
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168
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169 #ifndef _AIX52
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170 extern long long int atoll(const char *);
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171 #endif
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172
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173 /* This target uses the aix64.opt file. */
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174 #define TARGET_USES_AIX64_OPT 1
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175
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176 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
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177 but does not have crtbegin/end. */
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178
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179 #define TARGET_AIX_VERSION 52
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