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 Free Software Foundation, Inc.
4 Contributed by David Edelsohn (edelsohn@gnu.org).
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 #include "rs6000/rs6000.h"
25 #include "rs6000/aix.h"
27 /* AIX 4.3 and above support 64-bit executables. */
28 #undef SUBSUBTARGET_SWITCHES
29 #define SUBSUBTARGET_SWITCHES \
30 {"aix64", MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC, \
31 N_("Compile for 64-bit pointers") }, \
32 {"aix32", - (MASK_64BIT | MASK_POWERPC64), \
33 N_("Compile for 32-bit pointers") }, \
35 N_("Support message passing with the Parallel Environment") },
37 /* Sometimes certain combinations of command options do not make sense
38 on a particular target machine. You can define a macro
39 `OVERRIDE_OPTIONS' to take account of this. This macro, if
40 defined, is executed once just after all the command options have
43 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
46 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2 | MASK_STRING)
47 #define SUBTARGET_OVERRIDE_OPTIONS \
49 if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \
51 target_flags &= ~NON_POWERPC_MASKS; \
52 warning ("-maix64 and POWER architecture are incompatible."); \
54 if (TARGET_64BIT && ! TARGET_POWERPC64) \
56 target_flags |= MASK_POWERPC64; \
57 warning ("-maix64 requires PowerPC64 architecture remain enabled."); \
59 if (TARGET_POWERPC64 && ! TARGET_64BIT) \
61 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported."); \
66 #define ASM_SPEC "-u %{maix64:-a64 -mppc64} %(asm_cpu)"
68 /* Common ASM definitions used by ASM_SPEC amonst the various targets
69 for handling -mcpu=xxx switches. */
71 #define ASM_CPU_SPEC \
72 "%{!mcpu*: %{!maix64: \
73 %{mpower: %{!mpower2: -mpwr}} \
75 %{mpowerpc*: %{!mpowerpc64: -mppc}} \
76 %{mpowerpc64: -mppc64} \
77 %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
78 %{mcpu=common: -mcom} \
79 %{mcpu=power: -mpwr} \
80 %{mcpu=power2: -mpwr2} \
81 %{mcpu=powerpc: -mppc} \
83 %{mcpu=rios1: -mpwr} \
84 %{mcpu=rios2: -mpwr2} \
87 %{mcpu=rs64a: -mppc} \
101 #undef ASM_DEFAULT_SPEC
102 #define ASM_DEFAULT_SPEC "-mcom"
104 #undef CPP_PREDEFINES
105 #define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 \
106 -D_LONG_LONG -Asystem(unix) -Asystem(aix)"
109 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
110 %{ansi: -D_ANSI_C_SOURCE}\
111 %{maix64: -D__64BIT__ -D_ARCH_PPC}\
112 %{mpe: -I/usr/lpp/ppe.poe/include}\
113 %{pthread: -D_THREAD_SAFE}\
116 /* Common CPP definitions used by CPP_SPEC among the various targets
117 for handling -mcpu=xxx switches. */
119 #define CPP_CPU_SPEC \
120 "%{!mcpu*: %{!maix64: \
121 %{mpower: %{!mpower2: -D_ARCH_PWR}} \
122 %{mpower2: -D_ARCH_PWR2} \
123 %{mpowerpc*: -D_ARCH_PPC} \
124 %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
125 %{mcpu=common: -D_ARCH_COM} \
126 %{mcpu=power: -D_ARCH_PWR} \
127 %{mcpu=power2: -D_ARCH_PWR2} \
128 %{mcpu=powerpc: -D_ARCH_PPC} \
129 %{mcpu=rios: -D_ARCH_PWR} \
130 %{mcpu=rios1: -D_ARCH_PWR} \
131 %{mcpu=rios2: -D_ARCH_PWR2} \
132 %{mcpu=rsc: -D_ARCH_PWR} \
133 %{mcpu=rsc1: -D_ARCH_PWR} \
134 %{mcpu=rs64a: -D_ARCH_PPC} \
135 %{mcpu=403: -D_ARCH_PPC} \
136 %{mcpu=505: -D_ARCH_PPC} \
137 %{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
138 %{mcpu=602: -D_ARCH_PPC} \
139 %{mcpu=603: -D_ARCH_PPC} \
140 %{mcpu=603e: -D_ARCH_PPC} \
141 %{mcpu=604: -D_ARCH_PPC} \
142 %{mcpu=620: -D_ARCH_PPC} \
143 %{mcpu=630: -D_ARCH_PPC} \
144 %{mcpu=821: -D_ARCH_PPC} \
145 %{mcpu=860: -D_ARCH_PPC}"
147 #undef CPP_DEFAULT_SPEC
148 #define CPP_DEFAULT_SPEC "-D_ARCH_COM"
150 #undef TARGET_DEFAULT
151 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
153 #undef PROCESSOR_DEFAULT
154 #define PROCESSOR_DEFAULT PROCESSOR_PPC604
156 /* Define this macro as a C expression for the initializer of an
157 array of string to tell the driver program which options are
158 defaults for this target and thus do not need to be handled
159 specially when using `MULTILIB_OPTIONS'.
161 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
162 the target makefile fragment or if none of the options listed in
163 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
165 #undef MULTILIB_DEFAULTS
166 #define MULTILIB_DEFAULTS { "mcpu=common" }
169 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
170 %{p:-L/lib/profiled -L/usr/lib/profiled}\
171 %{!maix64:%{!shared:%{g*:-lg}}}\
172 %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
173 %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
177 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
178 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
179 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}"
181 #undef STARTFILE_SPEC
182 #define STARTFILE_SPEC "%{!shared:\
183 %{mpe:%{pg:/usr/lpp/ppe.poe/lib/gcrt0.o}\
184 %{!pg:%{p:/usr/lpp/ppe.poe/lib/mcrt0.o}\
185 %{!p:/usr/lpp/ppe.poe/lib/crt0.o}}}\
187 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
189 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
190 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}}"
192 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int". */
195 #define PTRDIFF_TYPE "long int"
197 /* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
198 and "cror 31,31,31" for POWER architecture. */
200 #undef RS6000_CALL_GLUE
201 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
203 /* AIX 4.2 and above provides initialization and finalization function
204 support from linker command line. */
205 #undef HAS_INIT_SECTION
206 #define HAS_INIT_SECTION
208 #undef LD_INIT_SWITCH
209 #define LD_INIT_SWITCH "-binitfini"