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
4 Free Software Foundation, Inc.
5 Contributed by David Edelsohn (edelsohn@gnu.org).
7 This file is part of GCC.
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.
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.
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, 59 Temple Place - Suite 330, Boston,
22 MA 02111-1307, USA. */
24 /* AIX 4.3 and above support 64-bit executables. */
25 #undef SUBSUBTARGET_SWITCHES
26 #define SUBSUBTARGET_SWITCHES \
27 {"aix64", MASK_64BIT | MASK_POWERPC64 \
28 | MASK_POWERPC | MASK_PPC_GFXOPT, \
29 N_("Compile for 64-bit pointers") }, \
30 {"aix32", - (MASK_64BIT | MASK_POWERPC64), \
31 N_("Compile for 32-bit pointers") }, \
33 N_("Support message passing with the Parallel Environment") },
35 /* Sometimes certain combinations of command options do not make sense
36 on a particular target machine. You can define a macro
37 `OVERRIDE_OPTIONS' to take account of this. This macro, if
38 defined, is executed once just after all the command options have
41 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
44 #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
45 #define SUBTARGET_OVERRIDE_OPTIONS \
47 if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \
49 target_flags &= ~NON_POWERPC_MASKS; \
50 warning (0, "-maix64 and POWER architecture are incompatible"); \
52 if (TARGET_64BIT && ! TARGET_POWERPC64) \
54 target_flags |= MASK_POWERPC64; \
55 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
57 if (TARGET_POWERPC64 && ! TARGET_64BIT) \
59 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
64 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
66 /* Common ASM definitions used by ASM_SPEC amongst the various targets
67 for handling -mcpu=xxx switches. */
69 #define ASM_CPU_SPEC \
70 "%{!mcpu*: %{!maix64: \
71 %{mpower: %{!mpower2: -mpwr}} \
73 %{mpowerpc*: %{!mpowerpc64: -mppc}} \
74 %{mpowerpc64: -mppc64} \
75 %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
76 %{mcpu=common: -mcom} \
77 %{mcpu=power: -mpwr} \
78 %{mcpu=power2: -mpwr2} \
79 %{mcpu=power3: -m620} \
80 %{mcpu=power4: -m620} \
81 %{mcpu=powerpc: -mppc} \
83 %{mcpu=rios1: -mpwr} \
84 %{mcpu=rios2: -mpwr2} \
87 %{mcpu=rs64a: -mppc} \
97 #undef ASM_DEFAULT_SPEC
98 #define ASM_DEFAULT_SPEC "-mcom"
100 #undef TARGET_OS_CPP_BUILTINS
101 #define TARGET_OS_CPP_BUILTINS() \
104 builtin_define ("_AIX43"); \
105 TARGET_OS_AIX_CPP_BUILTINS (); \
110 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
111 %{ansi: -D_ANSI_C_SOURCE}\
112 %{maix64: -D__64BIT__}\
113 %{mpe: -I/usr/lpp/ppe.poe/include}\
114 %{pthread: -D_THREAD_SAFE}"
116 /* The GNU C++ standard library requires that these macros be
118 #undef CPLUSPLUS_CPP_SPEC
119 #define CPLUSPLUS_CPP_SPEC \
121 %{maix64: -D__64BIT__} \
122 %{mpe: -I/usr/lpp/ppe.poe/include} \
123 %{pthread: -D_THREAD_SAFE}"
125 #undef TARGET_DEFAULT
126 #define TARGET_DEFAULT MASK_NEW_MNEMONICS
128 #undef PROCESSOR_DEFAULT
129 #define PROCESSOR_DEFAULT PROCESSOR_PPC604e
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'.
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::. */
140 #undef MULTILIB_DEFAULTS
141 #define MULTILIB_DEFAULTS { "mcpu=common" }
144 #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
145 %{p:-L/lib/profiled -L/usr/lib/profiled}\
146 %{!maix64:%{!shared:%{g*:-lg}}}\
147 %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
148 %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
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}"
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}}}\
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}}}}}"
164 /* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int". */
167 #define PTRDIFF_TYPE "long int"
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. */
172 #undef RS6000_CALL_GLUE
173 #define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
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
180 #undef LD_INIT_SWITCH
181 #define LD_INIT_SWITCH "-binitfini"
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