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 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 2, 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 COPYING. If not, write to the 21 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, 22 MA 02110-1301, USA. */ 23 24/* Sometimes certain combinations of command options do not make sense 25 on a particular target machine. You can define a macro 26 `OVERRIDE_OPTIONS' to take account of this. This macro, if 27 defined, is executed once just after all the command options have 28 been parsed. 29 30 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to 31 get control. */ 32 33#define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2) 34#define SUBTARGET_OVERRIDE_OPTIONS \ 35do { \ 36 if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \ 37 { \ 38 target_flags &= ~NON_POWERPC_MASKS; \ 39 warning (0, "-maix64 and POWER architecture are incompatible"); \ 40 } \ 41 if (TARGET_64BIT && ! TARGET_POWERPC64) \ 42 { \ 43 target_flags |= MASK_POWERPC64; \ 44 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \ 45 } \ 46 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ 47 { \ 48 rs6000_long_double_type_size = 64; \ 49 if (rs6000_explicit_options.long_double) \ 50 warning (0, "soft-float and long-double-128 are incompatible"); \ 51 } \ 52 if (TARGET_POWERPC64 && ! TARGET_64BIT) \ 53 { \ 54 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \ 55 } \ 56} while (0); 57 58#undef ASM_SPEC 59#define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)" 60 61/* Common ASM definitions used by ASM_SPEC amongst the various targets 62 for handling -mcpu=xxx switches. */ 63#undef ASM_CPU_SPEC 64#define ASM_CPU_SPEC \ 65"%{!mcpu*: %{!maix64: \ 66 %{mpower: %{!mpower2: -mpwr}} \ 67 %{mpower2: -mpwr2} \ 68 %{mpowerpc*: %{!mpowerpc64: -mppc}} \ 69 %{mpowerpc64: -mppc64} \ 70 %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \ 71%{mcpu=common: -mcom} \ 72%{mcpu=power: -mpwr} \ 73%{mcpu=power2: -mpwr2} \ 74%{mcpu=power3: -m620} \ 75%{mcpu=power4: -m620} \ 76%{mcpu=powerpc: -mppc} \ 77%{mcpu=rios: -mpwr} \ 78%{mcpu=rios1: -mpwr} \ 79%{mcpu=rios2: -mpwr2} \ 80%{mcpu=rsc: -mpwr} \ 81%{mcpu=rsc1: -mpwr} \ 82%{mcpu=rs64a: -mppc} \ 83%{mcpu=601: -m601} \ 84%{mcpu=602: -mppc} \ 85%{mcpu=603: -m603} \ 86%{mcpu=603e: -m603} \ 87%{mcpu=604: -m604} \ 88%{mcpu=604e: -m604} \ 89%{mcpu=620: -m620} \ 90%{mcpu=630: -m620}" 91 92#undef ASM_DEFAULT_SPEC 93#define ASM_DEFAULT_SPEC "-mcom" 94 95#undef TARGET_OS_CPP_BUILTINS 96#define TARGET_OS_CPP_BUILTINS() \ 97 do \ 98 { \ 99 builtin_define ("_AIX43"); \ 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/usr/lpp/ppe.poe/include}\ 109 %{pthread: -D_THREAD_SAFE}" 110 111/* The GNU C++ standard library requires that these macros be 112 defined. */ 113#undef CPLUSPLUS_CPP_SPEC 114#define CPLUSPLUS_CPP_SPEC \ 115 "-D_ALL_SOURCE \ 116 %{maix64: -D__64BIT__} \ 117 %{mpe: -I/usr/lpp/ppe.poe/include} \ 118 %{pthread: -D_THREAD_SAFE}" 119 120#undef TARGET_DEFAULT 121#define TARGET_DEFAULT MASK_NEW_MNEMONICS 122 123#undef PROCESSOR_DEFAULT 124#define PROCESSOR_DEFAULT PROCESSOR_PPC604e 125 126/* Define this macro as a C expression for the initializer of an 127 array of string to tell the driver program which options are 128 defaults for this target and thus do not need to be handled 129 specially when using `MULTILIB_OPTIONS'. 130 131 Do not define this macro if `MULTILIB_OPTIONS' is not defined in 132 the target makefile fragment or if none of the options listed in 133 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ 134 135#undef MULTILIB_DEFAULTS 136#define MULTILIB_DEFAULTS { "mcpu=common" } 137 138#undef LIB_SPEC 139#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\ 140 %{p:-L/lib/profiled -L/usr/lib/profiled}\ 141 %{!maix64:%{!shared:%{g*:-lg}}}\ 142 %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ 143 %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\ 144 %{!pthread:-lc}" 145 146#undef LINK_SPEC 147#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ 148 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ 149 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ 150 %{mpe:-binitfini:poe_remote_main}" 151 152#undef STARTFILE_SPEC 153#define STARTFILE_SPEC "%{!shared:\ 154 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ 155 %{!maix64:\ 156 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ 157 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" 158 159/* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int". */ 160 161#undef PTRDIFF_TYPE 162#define PTRDIFF_TYPE "long int" 163 164/* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC 165 and "cror 31,31,31" for POWER architecture. */ 166 167#undef RS6000_CALL_GLUE 168#define RS6000_CALL_GLUE "{cror 31,31,31|nop}" 169 170/* AIX 4.2 and above provides initialization and finalization function 171 support from linker command line. */ 172#undef HAS_INIT_SECTION 173#define HAS_INIT_SECTION 174 175#undef LD_INIT_SWITCH 176#define LD_INIT_SWITCH "-binitfini" 177 178/* The IBM AIX 4.x assembler doesn't support forward references in 179 .set directives. We handle this by deferring the output of .set 180 directives to the end of the compilation unit. */ 181#define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true 182 183/* This target uses the aix64.opt file. */ 184#define TARGET_USES_AIX64_OPT 1 185