1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V5. 3 Copyright (C) 2001, 2003, 2004, 2005 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 2, 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 COPYING. If not, write to the 20 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, 21 MA 02110-1301, USA. */ 22 23 /* Sometimes certain combinations of command options do not make sense 24 on a particular target machine. You can define a macro 25 `OVERRIDE_OPTIONS' to take account of this. This macro, if 26 defined, is executed once just after all the command options have 27 been parsed. 28 29 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 30 get control. */ 31 32 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2) 33 #define SUBTARGET_OVERRIDE_OPTIONS \ 34 do { \ 35 if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \ 36 { \ 37 target_flags &= ~NON_POWERPC_MASKS; \ 38 warning (0, "-maix64 and POWER architecture are incompatible"); \ 39 } \ 40 if (TARGET_64BIT && ! TARGET_POWERPC64) \ 41 { \ 42 target_flags |= MASK_POWERPC64; \ 43 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \ 44 } \ 45 if (TARGET_POWERPC64 && ! TARGET_64BIT) \ 46 { \ 47 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \ 48 } \ 49 } while (0); 50 51 #undef ASM_SPEC 52 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)" 53 54 /* Common ASM definitions used by ASM_SPEC amongst the various targets 55 for handling -mcpu=xxx switches. */ 56 #undef ASM_CPU_SPEC 57 #define ASM_CPU_SPEC \ 58 "%{!mcpu*: %{!maix64: \ 59 %{mpower: %{!mpower2: -mpwr}} \ 60 %{mpower2: -mpwr2} \ 61 %{mpowerpc*: %{!mpowerpc64: -mppc}} \ 62 %{mpowerpc64: -mppc64} \ 63 %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \ 64 %{mcpu=common: -mcom} \ 65 %{mcpu=power: -mpwr} \ 66 %{mcpu=power2: -mpwr2} \ 67 %{mcpu=power3: -m620} \ 68 %{mcpu=power4: -m620} \ 69 %{mcpu=powerpc: -mppc} \ 70 %{mcpu=rios: -mpwr} \ 71 %{mcpu=rios1: -mpwr} \ 72 %{mcpu=rios2: -mpwr2} \ 73 %{mcpu=rsc: -mpwr} \ 74 %{mcpu=rsc1: -mpwr} \ 75 %{mcpu=rs64a: -mppc} \ 76 %{mcpu=601: -m601} \ 77 %{mcpu=602: -mppc} \ 78 %{mcpu=603: -m603} \ 79 %{mcpu=603e: -m603} \ 80 %{mcpu=604: -m604} \ 81 %{mcpu=604e: -m604} \ 82 %{mcpu=620: -m620} \ 83 %{mcpu=630: -m620} \ 84 %{mcpu=970: -m620} \ 85 %{mcpu=G5: -m620}" 86 87 #undef ASM_DEFAULT_SPEC 88 #define ASM_DEFAULT_SPEC "-mcom" 89 90 #undef TARGET_OS_CPP_BUILTINS 91 #define TARGET_OS_CPP_BUILTINS() \ 92 do \ 93 { \ 94 builtin_define ("_AIX43"); \ 95 builtin_define ("_AIX51"); \ 96 TARGET_OS_AIX_CPP_BUILTINS (); \ 97 } \ 98 while (0) 99 100 #undef CPP_SPEC 101 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 102 %{ansi: -D_ANSI_C_SOURCE} \ 103 %{maix64: -D__64BIT__} \ 104 %{mpe: -I/usr/lpp/ppe.poe/include} \ 105 %{pthread: -D_THREAD_SAFE}" 106 107 /* The GNU C++ standard library requires that these macros be 108 defined. */ 109 #undef CPLUSPLUS_CPP_SPEC 110 #define CPLUSPLUS_CPP_SPEC \ 111 "-D_ALL_SOURCE \ 112 %{maix64: -D__64BIT__} \ 113 %{mpe: -I/usr/lpp/ppe.poe/include} \ 114 %{pthread: -D_THREAD_SAFE}" 115 116 #undef TARGET_DEFAULT 117 #define TARGET_DEFAULT MASK_NEW_MNEMONICS 118 119 #undef PROCESSOR_DEFAULT 120 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e 121 122 /* Define this macro as a C expression for the initializer of an 123 array of string to tell the driver program which options are 124 defaults for this target and thus do not need to be handled 125 specially when using `MULTILIB_OPTIONS'. 126 127 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 128 the target makefile fragment or if none of the options listed in 129 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 130 131 #undef MULTILIB_DEFAULTS 132 #define MULTILIB_DEFAULTS { "mcpu=common" } 133 134 #undef LIB_SPEC 135 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\ 136 %{p:-L/lib/profiled -L/usr/lib/profiled}\ 137 %{!maix64:%{!shared:%{g*:-lg}}}\ 138 %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 139 %{pthread:-lpthreads} -lc" 140 141 #undef LINK_SPEC 142 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ 143 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 144 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 145 %{mpe:-binitfini:poe_remote_main}" 146 147 #undef STARTFILE_SPEC 148 #define STARTFILE_SPEC "%{!shared:\ 149 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 150 %{!maix64:\ 151 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 152 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" 153 154 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 155 156 #undef PTRDIFF_TYPE 157 #define PTRDIFF_TYPE "long int" 158 159 /* Type used for wchar_t, as a string used in a declaration. */ 160 #undef WCHAR_TYPE 161 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 162 163 /* Width of wchar_t in bits. */ 164 #undef WCHAR_TYPE_SIZE 165 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 166 167 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC 168 and "cror 31,31,31" for POWER architecture. */ 169 170 #undef RS6000_CALL_GLUE 171 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}" 172 173 /* AIX 4.2 and above provides initialization and finalization function 174 support from linker command line. */ 175 #undef HAS_INIT_SECTION 176 #define HAS_INIT_SECTION 177 178 #undef LD_INIT_SWITCH 179 #define LD_INIT_SWITCH "-binitfini" 180 181 /* This target uses the aix64.opt file. */ 182 #define TARGET_USES_AIX64_OPT 1 183