1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX version 4.3. 3 Copyright (C) 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 4 2007 Free Software Foundation, Inc. 5 Contributed by David Edelsohn (edelsohn@gnu.org). 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify it 10 under the terms of the GNU General Public License as published 11 by the Free Software Foundation; either version 3, or (at your 12 option) any later version. 13 14 GCC is distributed in the hope that it will be useful, but WITHOUT 15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 17 License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 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_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ 46 { \ 47 rs6000_long_double_type_size = 64; \ 48 if (rs6000_explicit_options.long_double) \ 49 warning (0, "soft-float and long-double-128 are incompatible"); \ 50 } \ 51 if (TARGET_POWERPC64 && ! TARGET_64BIT) \ 52 { \ 53 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \ 54 } \ 55 } while (0); 56 57 #undef ASM_SPEC 58 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)" 59 60 /* Common ASM definitions used by ASM_SPEC amongst the various targets 61 for handling -mcpu=xxx switches. */ 62 #undef ASM_CPU_SPEC 63 #define ASM_CPU_SPEC \ 64 "%{!mcpu*: %{!maix64: \ 65 %{mpower: %{!mpower2: -mpwr}} \ 66 %{mpower2: -mpwr2} \ 67 %{mpowerpc*: %{!mpowerpc64: -mppc}} \ 68 %{mpowerpc64: -mppc64} \ 69 %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \ 70 %{mcpu=common: -mcom} \ 71 %{mcpu=power: -mpwr} \ 72 %{mcpu=power2: -mpwr2} \ 73 %{mcpu=power3: -m620} \ 74 %{mcpu=power4: -m620} \ 75 %{mcpu=powerpc: -mppc} \ 76 %{mcpu=rios: -mpwr} \ 77 %{mcpu=rios1: -mpwr} \ 78 %{mcpu=rios2: -mpwr2} \ 79 %{mcpu=rsc: -mpwr} \ 80 %{mcpu=rsc1: -mpwr} \ 81 %{mcpu=rs64a: -mppc} \ 82 %{mcpu=601: -m601} \ 83 %{mcpu=602: -mppc} \ 84 %{mcpu=603: -m603} \ 85 %{mcpu=603e: -m603} \ 86 %{mcpu=604: -m604} \ 87 %{mcpu=604e: -m604} \ 88 %{mcpu=620: -m620} \ 89 %{mcpu=630: -m620}" 90 91 #undef ASM_DEFAULT_SPEC 92 #define ASM_DEFAULT_SPEC "-mcom" 93 94 #undef TARGET_OS_CPP_BUILTINS 95 #define TARGET_OS_CPP_BUILTINS() \ 96 do \ 97 { \ 98 builtin_define ("_AIX43"); \ 99 TARGET_OS_AIX_CPP_BUILTINS (); \ 100 } \ 101 while (0) 102 103 #undef CPP_SPEC 104 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\ 105 %{ansi: -D_ANSI_C_SOURCE}\ 106 %{maix64: -D__64BIT__}\ 107 %{mpe: -I%R/usr/lpp/ppe.poe/include}\ 108 %{pthread: -D_THREAD_SAFE}" 109 110 /* The GNU C++ standard library requires that these macros be 111 defined. */ 112 #undef CPLUSPLUS_CPP_SPEC 113 #define CPLUSPLUS_CPP_SPEC \ 114 "-D_ALL_SOURCE \ 115 %{maix64: -D__64BIT__} \ 116 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 117 %{pthread: -D_THREAD_SAFE}" 118 119 #undef TARGET_DEFAULT 120 #define TARGET_DEFAULT MASK_NEW_MNEMONICS 121 122 #undef PROCESSOR_DEFAULT 123 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e 124 125 /* AIX does not support Altivec. */ 126 #undef TARGET_ALTIVEC 127 #define TARGET_ALTIVEC 0 128 #undef TARGET_ALTIVEC_ABI 129 #define TARGET_ALTIVEC_ABI 0 130 131 /* Define this macro as a C expression for the initializer of an 132 array of string to tell the driver program which options are 133 defaults for this target and thus do not need to be handled 134 specially when using `MULTILIB_OPTIONS'. 135 136 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 137 the target makefile fragment or if none of the options listed in 138 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 139 140 #undef MULTILIB_DEFAULTS 141 #define MULTILIB_DEFAULTS { "mcpu=common" } 142 143 #undef LIB_SPEC 144 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 145 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 146 %{!maix64:%{!shared:%{g*:-lg}}}\ 147 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 148 %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\ 149 %{!pthread:-lc}" 150 151 #undef LINK_SPEC 152 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ 153 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 154 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 155 %{mpe:-binitfini:poe_remote_main}" 156 157 #undef STARTFILE_SPEC 158 #define STARTFILE_SPEC "%{!shared:\ 159 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 160 %{!maix64:\ 161 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 162 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" 163 164 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 165 166 #undef PTRDIFF_TYPE 167 #define PTRDIFF_TYPE "long int" 168 169 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC 170 and "cror 31,31,31" for POWER architecture. */ 171 172 #undef RS6000_CALL_GLUE 173 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}" 174 175 /* AIX 4.2 and above provides initialization and finalization function 176 support from linker command line. */ 177 #undef HAS_INIT_SECTION 178 #define HAS_INIT_SECTION 179 180 #undef LD_INIT_SWITCH 181 #define LD_INIT_SWITCH "-binitfini" 182 183 /* The IBM AIX 4.x assembler doesn't support forward references in 184 .set directives. We handle this by deferring the output of .set 185 directives to the end of the compilation unit. */ 186 #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true 187 188 /* This target uses the aix64.opt file. */ 189 #define TARGET_USES_AIX64_OPT 1 190 191 #define TARGET_AIX_VERSION 43 192