aix52.h revision 132718 
175584Sru/* Definitions of target machine for GNU compiler,
275584Sru   for IBM RS/6000 POWER running AIX V5.2.
375584Sru   Copyright (C) 2002, 2003 Free Software Foundation, Inc.
475584Sru   Contributed by David Edelsohn (edelsohn@gnu.org).
575584Sru
675584Sru   This file is part of GCC.
775584Sru
875584Sru   GCC is free software; you can redistribute it and/or modify it
975584Sru   under the terms of the GNU General Public License as published
1075584Sru   by the Free Software Foundation; either version 2, or (at your
1175584Sru   option) any later version.
1275584Sru
1375584Sru   GCC is distributed in the hope that it will be useful, but WITHOUT
1475584Sru   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
1575584Sru   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
1675584Sru   License for more details.
1775584Sru
1875584Sru   You should have received a copy of the GNU General Public License
1975584Sru   along with GCC; see the file COPYING.  If not, write to the
2075584Sru   Free Software Foundation, 59 Temple Place - Suite 330, Boston,
2175584Sru   MA 02111-1307, USA.  */
2275584Sru
2375584Sru/* AIX V5 and above support 64-bit executables.  */
2475584Sru#undef  SUBSUBTARGET_SWITCHES
2575584Sru#define SUBSUBTARGET_SWITCHES					\
2675584Sru  {"aix64", 		MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,	\
2775584Sru   N_("Compile for 64-bit pointers") },					\
2875584Sru  {"aix32",		- (MASK_64BIT | MASK_POWERPC64),		\
2975584Sru   N_("Compile for 32-bit pointers") },					\
3075584Sru  {"pe",		0,						\
3175584Sru   N_("Support message passing with the Parallel Environment") },
3275584Sru
3375584Sru/* Sometimes certain combinations of command options do not make sense
3475584Sru   on a particular target machine.  You can define a macro
3575584Sru   `OVERRIDE_OPTIONS' to take account of this.  This macro, if
3675584Sru   defined, is executed once just after all the command options have
3775584Sru   been parsed.
3875584Sru
3975584Sru   The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
4075584Sru   get control.  */
4175584Sru
4275584Sru#define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
4375584Sru#define SUBTARGET_OVERRIDE_OPTIONS					\
4475584Srudo {									\
4575584Sru  if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))		\
4675584Sru    {									\
4775584Sru      target_flags &= ~NON_POWERPC_MASKS;				\
4875584Sru      warning ("-maix64 and POWER architecture are incompatible");	\
4975584Sru    }									\
5075584Sru  if (TARGET_64BIT && ! TARGET_POWERPC64)				\
5175584Sru    {									\
5275584Sru      target_flags |= MASK_POWERPC64;					\
5375584Sru      warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
5475584Sru    }									\
5575584Sru  if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
5675584Sru    {									\
5775584Sru      error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
5875584Sru    }									\
5975584Sru} while (0);
6075584Sru
6175584Sru#undef ASM_SPEC
6275584Sru#define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
6375584Sru
6475584Sru/* Common ASM definitions used by ASM_SPEC amongst the various targets
6575584Sru   for handling -mcpu=xxx switches.  */
6675584Sru#undef ASM_CPU_SPEC
67#define ASM_CPU_SPEC \
68"%{!mcpu*: %{!maix64: \
69  %{mpowerpc64: -mppc64} \
70  %{!mpower64: %(asm_default)}}} \
71%{mcpu=power3: -m620} \
72%{mcpu=power4: -m620} \
73%{mcpu=powerpc: -mppc} \
74%{mcpu=rs64a: -mppc} \
75%{mcpu=603: -m603} \
76%{mcpu=603e: -m603} \
77%{mcpu=604: -m604} \
78%{mcpu=604e: -m604} \
79%{mcpu=620: -m620} \
80%{mcpu=630: -m620}"
81
82#undef	ASM_DEFAULT_SPEC
83#define ASM_DEFAULT_SPEC "-mppc"
84
85#undef TARGET_OS_CPP_BUILTINS
86#define TARGET_OS_CPP_BUILTINS()      \
87  do                                  \
88    {                                 \
89      builtin_define ("_IBMR2");      \
90      builtin_define ("_POWER");      \
91      builtin_define ("_LONG_LONG");  \
92      builtin_define ("_AIX");        \
93      builtin_define ("_AIX32");      \
94      builtin_define ("_AIX41");      \
95      builtin_define ("_AIX43");      \
96      builtin_define ("_AIX51");      \
97      builtin_define ("_AIX52");      \
98      builtin_assert ("system=unix"); \
99      builtin_assert ("system=aix");  \
100    }                                 \
101  while (0)
102
103#undef CPP_SPEC
104#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}	\
105  %{ansi: -D_ANSI_C_SOURCE}			\
106  %{maix64: -D__64BIT__}			\
107  %{mpe: -I/usr/lpp/ppe.poe/include}		\
108  %{pthread: -D_THREAD_SAFE}"
109
110/* The GNU C++ standard library requires that these macros be
111   defined.  */
112#undef CPLUSPLUS_CPP_SPEC
113#define CPLUSPLUS_CPP_SPEC			\
114  "-D_XOPEN_SOURCE=500				\
115   -D_XOPEN_SOURCE_EXTENDED=1			\
116   -D_LARGE_FILE_API				\
117   -D_ALL_SOURCE				\
118   %{maix64: -D__64BIT__}			\
119   %{mpe: -I/usr/lpp/ppe.poe/include}		\
120   %{pthread: -D_THREAD_SAFE}"
121
122#undef  TARGET_DEFAULT
123#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
124
125#undef  PROCESSOR_DEFAULT
126#define PROCESSOR_DEFAULT PROCESSOR_PPC630
127#undef  PROCESSOR_DEFAULT64
128#define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
129
130#undef  TARGET_POWER
131#define TARGET_POWER 0
132
133/* Define this macro as a C expression for the initializer of an
134   array of string to tell the driver program which options are
135   defaults for this target and thus do not need to be handled
136   specially when using `MULTILIB_OPTIONS'.
137
138   Do not define this macro if `MULTILIB_OPTIONS' is not defined in
139   the target makefile fragment or if none of the options listed in
140   `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
141
142#undef	MULTILIB_DEFAULTS
143
144#undef LIB_SPEC
145#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
146   %{p:-L/lib/profiled -L/usr/lib/profiled}\
147   %{!maix64:%{!shared:%{g*:-lg}}}\
148   %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
149   %{pthread:-lpthreads} -lc"
150
151#undef LINK_SPEC
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}"
156
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}}}\
160   %{!maix64:\
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}}}}}"
163
164/* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
165
166#undef PTRDIFF_TYPE
167#define PTRDIFF_TYPE "long int"
168
169/* Type used for wchar_t, as a string used in a declaration.  */
170#undef  WCHAR_TYPE
171#define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
172
173/* Width of wchar_t in bits.  */
174#undef  WCHAR_TYPE_SIZE
175#define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
176#define MAX_WCHAR_TYPE_SIZE 32
177
178/* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
179   and "cror 31,31,31" for POWER architecture.  */
180
181#undef RS6000_CALL_GLUE
182#define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
183
184/* AIX 4.2 and above provides initialization and finalization function
185   support from linker command line.  */
186#undef HAS_INIT_SECTION
187#define HAS_INIT_SECTION
188
189#undef LD_INIT_SWITCH
190#define LD_INIT_SWITCH "-binitfini"
191
192/* AIX 5.2 has the float and long double forms of math functions.  */
193#undef TARGET_C99_FUNCTIONS
194#define TARGET_C99_FUNCTIONS  1
195
196