1 /* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V5.3. 3 Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 4 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 for 61 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to 62 provide the default assembler options if the user uses -mcpu=native, so if 63 you make changes here, make them there also. */ 64 #undef ASM_CPU_SPEC 65 #define ASM_CPU_SPEC \ 66 "%{!mcpu*: %{!maix64: \ 67 %{mpowerpc64: -mppc64} \ 68 %{maltivec: -m970} \ 69 %{!maltivec: %{!mpower64: %(asm_default)}}}} \ 70 %{mcpu=native: %(asm_cpu_native)} \ 71 %{mcpu=power3: -m620} \ 72 %{mcpu=power4: -mpwr4} \ 73 %{mcpu=power5: -mpwr5} \ 74 %{mcpu=power5+: -mpwr5x} \ 75 %{mcpu=power6: -mpwr6} \ 76 %{mcpu=power6x: -mpwr6} \ 77 %{mcpu=power7: -mpwr7} \ 78 %{mcpu=powerpc: -mppc} \ 79 %{mcpu=rs64a: -mppc} \ 80 %{mcpu=603: -m603} \ 81 %{mcpu=603e: -m603} \ 82 %{mcpu=604: -m604} \ 83 %{mcpu=604e: -m604} \ 84 %{mcpu=620: -m620} \ 85 %{mcpu=630: -m620} \ 86 %{mcpu=970: -m970} \ 87 %{mcpu=G5: -m970}" 88 89 #undef ASM_DEFAULT_SPEC 90 #define ASM_DEFAULT_SPEC "-mppc" 91 92 #undef TARGET_OS_CPP_BUILTINS 93 #define TARGET_OS_CPP_BUILTINS() \ 94 do \ 95 { \ 96 builtin_define ("_AIX43"); \ 97 builtin_define ("_AIX51"); \ 98 builtin_define ("_AIX52"); \ 99 builtin_define ("_AIX53"); \ 100 TARGET_OS_AIX_CPP_BUILTINS (); \ 101 } \ 102 while (0) 103 104 #undef CPP_SPEC 105 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ 106 %{ansi: -D_ANSI_C_SOURCE} \ 107 %{maix64: -D__64BIT__} \ 108 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 109 %{pthread: -D_THREAD_SAFE}" 110 111 /* The GNU C++ standard library requires that these macros be 112 defined. Synchronize with libstdc++ os_defines.h. */ 113 #undef CPLUSPLUS_CPP_SPEC 114 #define CPLUSPLUS_CPP_SPEC \ 115 "-D_ALL_SOURCE \ 116 %{maix64: -D__64BIT__} \ 117 %{mpe: -I%R/usr/lpp/ppe.poe/include} \ 118 %{pthread: -D_THREAD_SAFE}" 119 120 #undef TARGET_DEFAULT 121 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS) 122 123 #undef PROCESSOR_DEFAULT 124 #define PROCESSOR_DEFAULT PROCESSOR_POWER5 125 #undef PROCESSOR_DEFAULT64 126 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER5 127 128 #undef TARGET_POWER 129 #define TARGET_POWER 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 141 142 #undef LIB_SPEC 143 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 144 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 145 %{!maix64:%{!shared:%{g*:-lg}}}\ 146 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 147 %{pthread:-lpthreads} -lc" 148 149 #undef LINK_SPEC 150 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ 151 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 152 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 153 %{mpe:-binitfini:poe_remote_main}" 154 155 #undef STARTFILE_SPEC 156 #define STARTFILE_SPEC "%{!shared:\ 157 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 158 %{!maix64:\ 159 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 160 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" 161 162 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 163 164 #undef PTRDIFF_TYPE 165 #define PTRDIFF_TYPE "long int" 166 167 /* Type used for wchar_t, as a string used in a declaration. */ 168 #undef WCHAR_TYPE 169 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 170 171 /* Width of wchar_t in bits. */ 172 #undef WCHAR_TYPE_SIZE 173 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 174 175 /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC 176 and "cror 31,31,31" for POWER architecture. */ 177 178 #undef RS6000_CALL_GLUE 179 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}" 180 181 /* AIX 4.2 and above provides initialization and finalization function 182 support from linker command line. */ 183 #undef HAS_INIT_SECTION 184 #define HAS_INIT_SECTION 185 186 #undef LD_INIT_SWITCH 187 #define LD_INIT_SWITCH "-binitfini" 188 189 /* AIX 5.2 has the float and long double forms of math functions. */ 190 #undef TARGET_C99_FUNCTIONS 191 #define TARGET_C99_FUNCTIONS 1 192 193 #ifndef _AIX52 194 extern long long int atoll(const char *); 195 #endif 196 197 /* This target uses the aix64.opt file. */ 198 #define TARGET_USES_AIX64_OPT 1 199 200 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 201 but does not have crtbegin/end. */ 202 203 #define TARGET_USE_JCR_SECTION 0 204 205 #define TARGET_AIX_VERSION 53 206