1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V6.1. 3 Copyright (C) 2002-2018 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=power9: -mpwr9} \ 84 %{mcpu=powerpc: -mppc} \ 85 %{mcpu=rs64a: -mppc} \ 86 %{mcpu=603: -m603} \ 87 %{mcpu=603e: -m603} \ 88 %{mcpu=604: -m604} \ 89 %{mcpu=604e: -m604} \ 90 %{mcpu=620: -m620} \ 91 %{mcpu=630: -m620} \ 92 %{mcpu=970: -m970} \ 93 %{mcpu=G5: -m970} \ 94 %{mvsx: %{!mcpu*: -mpwr6}} \ 95 -many" 96 97 #undef ASM_DEFAULT_SPEC 98 #define ASM_DEFAULT_SPEC "-mpwr4" 99 100 #undef TARGET_OS_CPP_BUILTINS 101 #define TARGET_OS_CPP_BUILTINS() \ 102 do \ 103 { \ 104 builtin_define ("_AIX43"); \ 105 builtin_define ("_AIX51"); \ 106 builtin_define ("_AIX52"); \ 107 builtin_define ("_AIX53"); \ 108 builtin_define ("_AIX61"); \ 109 TARGET_OS_AIX_CPP_BUILTINS (); \ 110 } \ 111 while (0) 112 113 #undef CPP_SPEC 114 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 115 %{ansi: -D_ANSI_C_SOURCE} \ 116 %{maix64: -D__64BIT__} \ 117 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 118 %{pthread: -D_THREAD_SAFE}" 119 120 /* The GNU C++ standard library requires that these macros be 121 defined. Synchronize with libstdc++ os_defines.h. */ 122 #undef CPLUSPLUS_CPP_SPEC 123 #define CPLUSPLUS_CPP_SPEC \ 124 "-D_ALL_SOURCE -D__COMPATMATH__ \ 125 %{maix64: -D__64BIT__} \ 126 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 127 %{pthread: -D_THREAD_SAFE}" 128 129 #undef TARGET_DEFAULT 130 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF) 131 132 #undef PROCESSOR_DEFAULT 133 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 134 #undef PROCESSOR_DEFAULT64 135 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 136 137 /* AIX 6.1 kernel and assembler have necessary support for Altivec and VSX. */ 138 #undef OS_MISSING_ALTIVEC 139 140 /* Define this macro as a C expression for the initializer of an 141 array of string to tell the driver program which options are 142 defaults for this target and thus do not need to be handled 143 specially when using `MULTILIB_OPTIONS'. 144 145 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 146 the target makefile fragment or if none of the options listed in 147 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 148 149 #undef MULTILIB_DEFAULTS 150 151 #undef LIB_SPEC 152 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 153 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 154 %{!maix64:%{!shared:%{g*:-lg}}}\ 155 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 156 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 157 %{pthread:-lpthreads} -lc" 158 159 #undef LINK_SPEC 160 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 161 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 162 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 163 %{mpe:-binitfini:poe_remote_main}" 164 165 #undef STARTFILE_SPEC 166 #define STARTFILE_SPEC "%{!shared:\ 167 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 168 %{!maix64:\ 169 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 170 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}\ 171 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s" 172 173 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 174 175 #undef PTRDIFF_TYPE 176 #define PTRDIFF_TYPE "long int" 177 178 /* Type used for wchar_t, as a string used in a declaration. */ 179 #undef WCHAR_TYPE 180 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 181 182 /* Width of wchar_t in bits. */ 183 #undef WCHAR_TYPE_SIZE 184 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 185 186 /* AIX 4.2 and above provides initialization and finalization function 187 support from linker command line. */ 188 #undef HAS_INIT_SECTION 189 #define HAS_INIT_SECTION 190 191 #undef LD_INIT_SWITCH 192 #define LD_INIT_SWITCH "-binitfini" 193 194 #ifndef _AIX52 195 extern long long int atoll(const char *); 196 #endif 197 198 /* This target uses the aix64.opt file. */ 199 #define TARGET_USES_AIX64_OPT 1 200 201 /* Large TOC Support */ 202 #ifdef HAVE_LD_LARGE_TOC 203 #undef TARGET_CMODEL 204 #define TARGET_CMODEL rs6000_current_cmodel 205 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 206 #else 207 #define SET_CMODEL(opt) do {} while (0) 208 #endif 209 210 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 211 but does not have crtbegin/end. */ 212 213 #define TARGET_AIX_VERSION 61 214