1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V7.1. 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 builtin_define ("_AIX71"); \ 110 TARGET_OS_AIX_CPP_BUILTINS (); \ 111 } \ 112 while (0) 113 114 #undef CPP_SPEC 115 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 116 %{ansi: -D_ANSI_C_SOURCE} \ 117 %{maix64: -D__64BIT__} \ 118 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 119 %{pthread: -D_THREAD_SAFE}" 120 121 /* The GNU C++ standard library requires that these macros be 122 defined. Synchronize with libstdc++ os_defines.h. */ 123 #undef CPLUSPLUS_CPP_SPEC 124 #define CPLUSPLUS_CPP_SPEC \ 125 "-D_ALL_SOURCE -D__COMPATMATH__ \ 126 %{maix64: -D__64BIT__} \ 127 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 128 %{pthread: -D_THREAD_SAFE}" 129 130 #define RS6000_CPU(NAME, CPU, FLAGS) 131 #include "rs6000-cpus.def" 132 #undef RS6000_CPU 133 134 #undef TARGET_DEFAULT 135 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF) 136 137 #undef PROCESSOR_DEFAULT 138 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 139 #undef PROCESSOR_DEFAULT64 140 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 141 142 /* AIX 7.1 kernel and assembler have necessary support for Altivec and VSX. */ 143 #undef OS_MISSING_ALTIVEC 144 145 /* Define this macro as a C expression for the initializer of an 146 array of string to tell the driver program which options are 147 defaults for this target and thus do not need to be handled 148 specially when using `MULTILIB_OPTIONS'. 149 150 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 151 the target makefile fragment or if none of the options listed in 152 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 153 154 #undef MULTILIB_DEFAULTS 155 156 #undef LIB_SPEC 157 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 158 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 159 %{!maix64:%{!shared:%{g*:-lg}}}\ 160 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 161 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 162 %{pthread:-lpthreads} -lc" 163 164 #undef LINK_SPEC 165 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 166 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 167 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 168 %{mpe:-binitfini:poe_remote_main}" 169 170 #undef STARTFILE_SPEC 171 #define STARTFILE_SPEC "%{!shared:\ 172 %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 173 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 174 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 175 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s" 176 177 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 178 179 #undef PTRDIFF_TYPE 180 #define PTRDIFF_TYPE "long int" 181 182 /* Type used for wchar_t, as a string used in a declaration. */ 183 #undef WCHAR_TYPE 184 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 185 186 /* Width of wchar_t in bits. */ 187 #undef WCHAR_TYPE_SIZE 188 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 189 190 /* AIX 4.2 and above provides initialization and finalization function 191 support from linker command line. */ 192 #undef HAS_INIT_SECTION 193 #define HAS_INIT_SECTION 194 195 #undef LD_INIT_SWITCH 196 #define LD_INIT_SWITCH "-binitfini" 197 198 #ifndef _AIX52 199 extern long long int atoll(const char *); 200 #endif 201 202 /* This target uses the aix64.opt file. */ 203 #define TARGET_USES_AIX64_OPT 1 204 205 /* Large TOC Support */ 206 #ifdef HAVE_LD_LARGE_TOC 207 #undef TARGET_CMODEL 208 #define TARGET_CMODEL rs6000_current_cmodel 209 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 210 #else 211 #define SET_CMODEL(opt) do {} while (0) 212 #endif 213 214 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 215 but does not have crtbegin/end. */ 216 217 #define TARGET_AIX_VERSION 71 218 219 /* AIX 7.1 supports DWARF3 debugging, but XCOFF remains the default. */ 220 #define DWARF2_DEBUGGING_INFO 1 221 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG 222 #define DEBUG_INFO_SECTION "0x10000" 223 #define DEBUG_LINE_SECTION "0x20000" 224 #define DEBUG_PUBNAMES_SECTION "0x30000" 225 #define DEBUG_PUBTYPES_SECTION "0x40000" 226 #define DEBUG_ARANGES_SECTION "0x50000" 227 #define DEBUG_ABBREV_SECTION "0x60000" 228 #define DEBUG_STR_SECTION "0x70000" 229 #define DEBUG_RANGES_SECTION "0x80000" 230 #define DEBUG_LOC_SECTION "0x90000" 231 #define DEBUG_FRAME_SECTION "0xA0000" 232 #define DEBUG_MACINFO_SECTION "0xB0000" 233 #define DEBUG_MACRO_SECTION "0xB0000" 234 235