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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.
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3 Copyright (C) 2001-2018 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_POWERPC64 && ! TARGET_64BIT) \
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33 { \
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34 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
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35 } \
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131
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36 } while (0)
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111
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37
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38 #undef ASM_SPEC
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39 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
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40
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41 /* Common ASM definitions used by ASM_SPEC amongst the various targets
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42 for handling -mcpu=xxx switches. */
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43 #undef ASM_CPU_SPEC
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44 #define ASM_CPU_SPEC \
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45 "%{!mcpu*: %{!maix64: \
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46 %{!mpowerpc64: %(asm_default)} \
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47 %{mpowerpc64: -mppc64}}} \
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48 %{mcpu=power3: -m620} \
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49 %{mcpu=power4: -m620} \
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50 %{mcpu=powerpc: -mppc} \
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51 %{mcpu=rs64a: -mppc} \
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52 %{mcpu=601: -m601} \
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53 %{mcpu=602: -mppc} \
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54 %{mcpu=603: -m603} \
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55 %{mcpu=603e: -m603} \
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56 %{mcpu=604: -m604} \
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57 %{mcpu=604e: -m604} \
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58 %{mcpu=620: -m620} \
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59 %{mcpu=630: -m620} \
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60 %{mcpu=970: -m620} \
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61 %{mcpu=G5: -m620}"
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62
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63 #undef ASM_DEFAULT_SPEC
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64 #define ASM_DEFAULT_SPEC "-mppc"
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65
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66 #undef TARGET_OS_CPP_BUILTINS
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67 #define TARGET_OS_CPP_BUILTINS() \
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68 do \
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69 { \
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70 builtin_define ("_AIX43"); \
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71 builtin_define ("_AIX51"); \
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72 TARGET_OS_AIX_CPP_BUILTINS (); \
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73 } \
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74 while (0)
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75
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76 #undef CPP_SPEC
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77 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
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78 %{ansi: -D_ANSI_C_SOURCE} \
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79 %{maix64: -D__64BIT__} \
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80 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
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81 %{pthread: -D_THREAD_SAFE}"
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82
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83 /* The GNU C++ standard library requires that these macros be
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84 defined. */
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85 #undef CPLUSPLUS_CPP_SPEC
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86 #define CPLUSPLUS_CPP_SPEC \
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87 "-D_ALL_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 #undef TARGET_DEFAULT
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93 #define TARGET_DEFAULT 0
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94
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95 #undef PROCESSOR_DEFAULT
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96 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
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97
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98 /* AIX does not support Altivec. */
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99 #undef TARGET_ALTIVEC
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100 #define TARGET_ALTIVEC 0
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101 #undef TARGET_ALTIVEC_ABI
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102 #define TARGET_ALTIVEC_ABI 0
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103 #undef TARGET_EXTRA_BUILTINS
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104 #define TARGET_EXTRA_BUILTINS 0
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105
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106
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107 /* Define this macro as a C expression for the initializer of an
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108 array of string to tell the driver program which options are
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109 defaults for this target and thus do not need to be handled
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110 specially when using `MULTILIB_OPTIONS'.
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111
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112 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
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113 the target makefile fragment or if none of the options listed in
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114 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
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115
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116 #undef MULTILIB_DEFAULTS
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117 #define MULTILIB_DEFAULTS { "mcpu=common" }
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118
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119 #undef LIB_SPEC
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120 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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121 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
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122 %{!maix64:%{!shared:%{g*:-lg}}}\
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123 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
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124 %{pthread:-lpthreads} -lc"
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125
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126 #undef LINK_SPEC
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127 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
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128 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
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129 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
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130 %{mpe:-binitfini:poe_remote_main}"
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131
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132 #undef STARTFILE_SPEC
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133 #define STARTFILE_SPEC "%{!shared:\
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134 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
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135 %{!maix64:\
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136 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
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137 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
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138
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139 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
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140
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141 #undef PTRDIFF_TYPE
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142 #define PTRDIFF_TYPE "long int"
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143
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144 /* Type used for wchar_t, as a string used in a declaration. */
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145 #undef WCHAR_TYPE
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146 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
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147
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148 /* Width of wchar_t in bits. */
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149 #undef WCHAR_TYPE_SIZE
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150 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
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151
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152 /* AIX 4.2 and above provides initialization and finalization function
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153 support from linker command line. */
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154 #undef HAS_INIT_SECTION
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155 #define HAS_INIT_SECTION
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156
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157 #undef LD_INIT_SWITCH
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158 #define LD_INIT_SWITCH "-binitfini"
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159
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160 /* This target uses the aix64.opt file. */
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161 #define TARGET_USES_AIX64_OPT 1
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162
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163 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
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164 but does not have crtbegin/end. */
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165
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166 #define TARGET_AIX_VERSION 51
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167
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168 #undef TARGET_LIBC_HAS_FUNCTION
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169 #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
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