1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V7.2. 3 Copyright (C) 2002-2019 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 if (! strcmp (lang_hooks.name, "GNU Go") \ 60 && TARGET_32BIT) \ 61 { \ 62 /* aix/ppc doesn't support -mvsx and -maltivec with Go */ \ 63 rs6000_isa_flags &= ~(OPTION_MASK_VSX | OPTION_MASK_ALTIVEC); \ 64 } \ 65 } while (0) 66 67 #undef ASM_SPEC 68 #define ASM_SPEC "-u %{maix64:-a64} %(asm_cpu)" 69 70 /* Common ASM definitions used by ASM_SPEC amongst the various targets for 71 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to 72 provide the default assembler options if the user uses -mcpu=native, so if 73 you make changes here, make them there also. */ 74 #undef ASM_CPU_SPEC 75 #define ASM_CPU_SPEC \ 76 "%{mcpu=native: %(asm_cpu_native); \ 77 mcpu=power9: -mpwr9; \ 78 mcpu=power8: -mpwr8; \ 79 mcpu=power7: -mpwr7; \ 80 mcpu=power6x|mcpu=power6: -mpwr6; \ 81 mcpu=power5+: -mpwr5x; \ 82 mcpu=power5: -mpwr5; \ 83 mcpu=power4: -mpwr4; \ 84 mcpu=power3: -m620; \ 85 mcpu=powerpc: -mppc; \ 86 mcpu=rs64: -mppc; \ 87 mcpu=603: -m603; \ 88 mcpu=603e: -m603; \ 89 mcpu=604: -m604; \ 90 mcpu=604e: -m604; \ 91 mcpu=620: -m620; \ 92 mcpu=630: -m620; \ 93 mcpu=970|mcpu=G5: -m970; \ 94 !mcpu*: %{mvsx: -mpwr6; \ 95 maltivec: -m970; \ 96 maix64|mpowerpc64: -mppc64; \ 97 : %(asm_default)}} \ 98 -many" 99 100 #undef ASM_DEFAULT_SPEC 101 #define ASM_DEFAULT_SPEC "-mpwr7" 102 103 #undef TARGET_OS_CPP_BUILTINS 104 #define TARGET_OS_CPP_BUILTINS() \ 105 do \ 106 { \ 107 builtin_define ("_AIX43"); \ 108 builtin_define ("_AIX51"); \ 109 builtin_define ("_AIX52"); \ 110 builtin_define ("_AIX53"); \ 111 builtin_define ("_AIX61"); \ 112 builtin_define ("_AIX71"); \ 113 builtin_define ("_AIX72"); \ 114 TARGET_OS_AIX_CPP_BUILTINS (); \ 115 } \ 116 while (0) 117 118 #undef CPP_SPEC 119 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 120 %{ansi: -D_ANSI_C_SOURCE} \ 121 %{maix64: -D__64BIT__} \ 122 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 123 %{pthread: -D_THREAD_SAFE}" 124 125 /* The GNU C++ standard library requires that these macros be 126 defined. Synchronize with libstdc++ os_defines.h. */ 127 #undef CPLUSPLUS_CPP_SPEC 128 #define CPLUSPLUS_CPP_SPEC \ 129 "-D_ALL_SOURCE -D__COMPATMATH__ \ 130 %{maix64: -D__64BIT__} \ 131 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 132 %{pthread: -D_THREAD_SAFE}" 133 134 #define RS6000_CPU(NAME, CPU, FLAGS) 135 #include "rs6000-cpus.def" 136 #undef RS6000_CPU 137 138 #undef TARGET_DEFAULT 139 #define TARGET_DEFAULT ISA_2_6_MASKS_EMBEDDED 140 141 #undef PROCESSOR_DEFAULT 142 #define PROCESSOR_DEFAULT PROCESSOR_POWER7 143 #undef PROCESSOR_DEFAULT64 144 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 145 146 /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */ 147 #undef OS_MISSING_ALTIVEC 148 149 /* Define this macro as a C expression for the initializer of an 150 array of string to tell the driver program which options are 151 defaults for this target and thus do not need to be handled 152 specially when using `MULTILIB_OPTIONS'. 153 154 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 155 the target makefile fragment or if none of the options listed in 156 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 157 158 #undef MULTILIB_DEFAULTS 159 160 #undef LIB_SPEC 161 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 162 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 163 %{!maix64:%{!shared:%{g*:-lg}}}\ 164 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ 165 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 166 %{pthread:-lpthreads} -lc" 167 168 #undef LINK_SPEC 169 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ 170 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 171 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 172 %{mpe:-binitfini:poe_remote_main}" 173 174 #undef STARTFILE_SPEC 175 #define STARTFILE_SPEC "%{!shared:\ 176 %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ 177 %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ 178 %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ 179 %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s" 180 181 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 182 183 #undef PTRDIFF_TYPE 184 #define PTRDIFF_TYPE "long int" 185 186 /* Type used for wchar_t, as a string used in a declaration. */ 187 #undef WCHAR_TYPE 188 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 189 190 /* Width of wchar_t in bits. */ 191 #undef WCHAR_TYPE_SIZE 192 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 193 194 /* AIX 4.2 and above provides initialization and finalization function 195 support from linker command line. */ 196 #undef HAS_INIT_SECTION 197 #define HAS_INIT_SECTION 198 199 #undef LD_INIT_SWITCH 200 #define LD_INIT_SWITCH "-binitfini" 201 202 #ifndef _AIX52 203 extern long long int atoll(const char *); 204 #endif 205 206 /* This target uses the aix64.opt file. */ 207 #define TARGET_USES_AIX64_OPT 1 208 209 /* Large TOC Support */ 210 #ifdef HAVE_LD_LARGE_TOC 211 #undef TARGET_CMODEL 212 #define TARGET_CMODEL rs6000_current_cmodel 213 #define SET_CMODEL(opt) rs6000_current_cmodel = opt 214 #else 215 #define SET_CMODEL(opt) do {} while (0) 216 #endif 217 218 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 219 but does not have crtbegin/end. */ 220 221 #define TARGET_AIX_VERSION 72 222 223 /* AIX 7.2 supports DWARF3 debugging, but XCOFF remains the default. */ 224 #define DWARF2_DEBUGGING_INFO 1 225 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG 226 #define DEBUG_INFO_SECTION "0x10000" 227 #define DEBUG_LINE_SECTION "0x20000" 228 #define DEBUG_PUBNAMES_SECTION "0x30000" 229 #define DEBUG_PUBTYPES_SECTION "0x40000" 230 #define DEBUG_ARANGES_SECTION "0x50000" 231 #define DEBUG_ABBREV_SECTION "0x60000" 232 #define DEBUG_STR_SECTION "0x70000" 233 #define DEBUG_RANGES_SECTION "0x80000" 234 #define DEBUG_LOC_SECTION "0x90000" 235 #define DEBUG_FRAME_SECTION "0xA0000" 236 #define DEBUG_MACINFO_SECTION "0xB0000" 237 #define DEBUG_MACRO_SECTION "0xB0000" 238 239