1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V6.1. 3 Copyright (C) 2002-2015 Free Software Foundation, Inc. 4 Contributed by David Edelsohn (edelsohn@gnu.org). 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify it 9 under the terms of the GNU General Public License as published 10 by the Free Software Foundation; either version 3, or (at your 11 option) any later version. 12 13 GCC is distributed in the hope that it will be useful, but WITHOUT 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 16 License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 23 get control in TARGET_OPTION_OVERRIDE. */ 24 25 #define SUBTARGET_OVERRIDE_OPTIONS \ 26 do { \ 27 if (TARGET_64BIT && ! TARGET_POWERPC64) \ 28 { \ 29 rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ 30 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \ 31 } \ 32 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ 33 { \ 34 rs6000_long_double_type_size = 64; \ 35 if (global_options_set.x_rs6000_long_double_type_size) \ 36 warning (0, "soft-float and long-double-128 are incompatible"); \ 37 } \ 38 if (TARGET_POWERPC64 && ! TARGET_64BIT) \ 39 { \ 40 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \ 41 } \ 42 if ((rs6000_isa_flags_explicit \ 43 & OPTION_MASK_MINIMAL_TOC) != 0) \ 44 { \ 45 if (global_options_set.x_rs6000_current_cmodel \ 46 && rs6000_current_cmodel != CMODEL_SMALL) \ 47 error ("-mcmodel incompatible with other toc options"); \ 48 SET_CMODEL (CMODEL_SMALL); \ 49 } \ 50 if (rs6000_current_cmodel != CMODEL_SMALL) \ 51 { \ 52 TARGET_NO_FP_IN_TOC = 0; \ 53 TARGET_NO_SUM_IN_TOC = 0; \ 54 } \ 55 if (rs6000_current_cmodel == CMODEL_MEDIUM) \ 56 { \ 57 rs6000_current_cmodel = CMODEL_LARGE; \ 58 } \ 59 } while (0); 60 61 #undef ASM_SPEC 62 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)" 63 64 /* Common ASM definitions used by ASM_SPEC amongst the various targets for 65 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to 66 provide the default assembler options if the user uses -mcpu=native, so if 67 you make changes here, make them there also. */ 68 #undef ASM_CPU_SPEC 69 #define ASM_CPU_SPEC \ 70 "%{!mcpu*: %{!maix64: \ 71 %{mpowerpc64: -mppc64} \ 72 %{maltivec: -m970} \ 73 %{!maltivec: %{!mpowerpc64: %(asm_default)}}}} \ 74 %{mcpu=native: %(asm_cpu_native)} \ 75 %{mcpu=power3: -m620} \ 76 %{mcpu=power4: -mpwr4} \ 77 %{mcpu=power5: -mpwr5} \ 78 %{mcpu=power5+: -mpwr5x} \ 79 %{mcpu=power6: -mpwr6} \ 80 %{mcpu=power6x: -mpwr6} \ 81 %{mcpu=power7: -mpwr7} \ 82 %{mcpu=power8: -mpwr8} \ 83 %{mcpu=powerpc: -mppc} \ 84 %{mcpu=rs64a: -mppc} \ 85 %{mcpu=603: -m603} \ 86 %{mcpu=603e: -m603} \ 87 %{mcpu=604: -m604} \ 88 %{mcpu=604e: -m604} \ 89 %{mcpu=620: -m620} \ 90 %{mcpu=630: -m620} \ 91 %{mcpu=970: -m970} \ 92 %{mcpu=G5: -m970} \ 93 %{mvsx: %{!mcpu*: -mpwr6}} \ 94 -many" 95 96 #undef ASM_DEFAULT_SPEC 97 #define ASM_DEFAULT_SPEC "-mpwr4" 98 99 #undef TARGET_OS_CPP_BUILTINS 100 #define TARGET_OS_CPP_BUILTINS() \ 101 do \ 102 { \ 103 builtin_define ("_AIX43"); \ 104 builtin_define ("_AIX51"); \ 105 builtin_define ("_AIX52"); \ 106 builtin_define ("_AIX53"); \ 107 builtin_define ("_AIX61"); \ 108 TARGET_OS_AIX_CPP_BUILTINS (); \ 109 } \ 110 while (0) 111 112 #undef CPP_SPEC 113 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 114 %{ansi: -D_ANSI_C_SOURCE} \ 115 %{maix64: -D__64BIT__} \ 116 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 117 %{pthread: -D_THREAD_SAFE}" 118 119 /* The GNU C++ standard library requires that these macros be 120 defined. Synchronize with libstdc++ os_defines.h. */ 121 #undef CPLUSPLUS_CPP_SPEC 122 #define CPLUSPLUS_CPP_SPEC \ 123 "-D_ALL_SOURCE -D__COMPATMATH__ \ 124 %{maix64: -D__64BIT__} \ 125 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 126 %{pthread: -D_THREAD_SAFE}" 127 128 #undef TARGET_DEFAULT 129 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF) 130 131 #undef PROCESSOR_DEFAULT 132 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 133 #undef PROCESSOR_DEFAULT64 134 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 135 136 /* AIX 6.1 kernel and assembler have necessary support for Altivec and VSX. */ 137 #undef OS_MISSING_ALTIVEC 138 139 /* Define this macro as a C expression for the initializer of an 140 array of string to tell the driver program which options are 141 defaults for this target and thus do not need to be handled 142 specially when using `MULTILIB_OPTIONS'. 143 144 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 145 the target makefile fragment or if none of the options listed in 146 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 147 148 #undef MULTILIB_DEFAULTS 149 150 #undef LIB_SPEC 151 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 152 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 153 %{!maix64:%{!shared:%{g*:-lg}}}\ 154 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 155 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 156 %{pthread:-lpthreads} -lc" 157 158 #undef LINK_SPEC 159 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 160 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 161 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 162 %{mpe:-binitfini:poe_remote_main}" 163 164 #undef STARTFILE_SPEC 165 #define STARTFILE_SPEC "%{!shared:\ 166 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 167 %{!maix64:\ 168 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 169 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}\ 170 %{shared:crtcxa_s%O%s;:crtcxa%O%s}" 171 172 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 173 174 #undef PTRDIFF_TYPE 175 #define PTRDIFF_TYPE "long int" 176 177 /* Type used for wchar_t, as a string used in a declaration. */ 178 #undef WCHAR_TYPE 179 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 180 181 /* Width of wchar_t in bits. */ 182 #undef WCHAR_TYPE_SIZE 183 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 184 185 /* AIX 4.2 and above provides initialization and finalization function 186 support from linker command line. */ 187 #undef HAS_INIT_SECTION 188 #define HAS_INIT_SECTION 189 190 #undef LD_INIT_SWITCH 191 #define LD_INIT_SWITCH "-binitfini" 192 193 #ifndef _AIX52 194 extern long long int atoll(const char *); 195 #endif 196 197 /* This target uses the aix64.opt file. */ 198 #define TARGET_USES_AIX64_OPT 1 199 200 /* Large TOC Support */ 201 #ifdef HAVE_LD_LARGE_TOC 202 #undef TARGET_CMODEL 203 #define TARGET_CMODEL rs6000_current_cmodel 204 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 205 #else 206 #define SET_CMODEL(opt) do {} while (0) 207 #endif 208 209 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 210 but does not have crtbegin/end. */ 211 212 #define TARGET_USE_JCR_SECTION 0 213 214 #define TARGET_AIX_VERSION 61 215