1/* Definitions of target machine for GNU compiler, 2 for IBM RS/6000 POWER running AIX V5. 3 Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008 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 \ 34do { \ 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%R/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%R/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/* AIX does not support Altivec. */ 123#undef TARGET_ALTIVEC 124#define TARGET_ALTIVEC 0 125#undef TARGET_ALTIVEC_ABI 126#define TARGET_ALTIVEC_ABI 0 127 128/* Define this macro as a C expression for the initializer of an 129 array of string to tell the driver program which options are 130 defaults for this target and thus do not need to be handled 131 specially when using `MULTILIB_OPTIONS'. 132 133 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 134 the target makefile fragment or if none of the options listed in 135 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 136 137#undef MULTILIB_DEFAULTS 138#define MULTILIB_DEFAULTS { "mcpu=common" } 139 140#undef LIB_SPEC 141#define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 142 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ 143 %{!maix64:%{!shared:%{g*:-lg}}}\ 144 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 145 %{pthread:-lpthreads} -lc" 146 147#undef LINK_SPEC 148#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ 149 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 150 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 151 %{mpe:-binitfini:poe_remote_main}" 152 153#undef STARTFILE_SPEC 154#define STARTFILE_SPEC "%{!shared:\ 155 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 156 %{!maix64:\ 157 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 158 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" 159 160/* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 161 162#undef PTRDIFF_TYPE 163#define PTRDIFF_TYPE "long int" 164 165/* Type used for wchar_t, as a string used in a declaration. */ 166#undef WCHAR_TYPE 167#define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") 168 169/* Width of wchar_t in bits. */ 170#undef WCHAR_TYPE_SIZE 171#define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) 172 173/* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC 174 and "cror 31,31,31" for POWER architecture. */ 175 176#undef RS6000_CALL_GLUE 177#define RS6000_CALL_GLUE "{cror 31,31,31|nop}" 178 179/* AIX 4.2 and above provides initialization and finalization function 180 support from linker command line. */ 181#undef HAS_INIT_SECTION 182#define HAS_INIT_SECTION 183 184#undef LD_INIT_SWITCH 185#define LD_INIT_SWITCH "-binitfini" 186 187/* This target uses the aix64.opt file. */ 188#define TARGET_USES_AIX64_OPT 1 189 190/* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, 191 but does not have crtbegin/end. */ 192 193#define TARGET_USE_JCR_SECTION 0 194 195#define TARGET_AIX_VERSION 51 196