aix43.h revision 90075 
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 Free Software Foundation, Inc.
4   Contributed by David Edelsohn (edelsohn@gnu.org).
5
6This file is part of GNU CC.
7
8GNU CC is free software; you can redistribute it and/or modify
9it under the terms of the GNU General Public License as published by
10the Free Software Foundation; either version 2, or (at your option)
11any later version.
12
13GNU CC is distributed in the hope that it will be useful,
14but WITHOUT ANY WARRANTY; without even the implied warranty of
15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16GNU General Public License for more details.
17
18You should have received a copy of the GNU General Public License
19along with GNU CC; see the file COPYING.  If not, write to
20the Free Software Foundation, 59 Temple Place - Suite 330,
21Boston, MA 02111-1307, USA.  */
22
23
24/* AIX 4.3 and above support 64-bit executables.  */
25#undef  SUBSUBTARGET_SWITCHES
26#define SUBSUBTARGET_SWITCHES					\
27  {"aix64", 		MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,	\
28   N_("Compile for 64-bit pointers") },					\
29  {"aix32",		- (MASK_64BIT | MASK_POWERPC64),		\
30   N_("Compile for 32-bit pointers") },					\
31  {"pe",		0,						\
32   N_("Support message passing with the Parallel Environment") },
33
34/* Sometimes certain combinations of command options do not make sense
35   on a particular target machine.  You can define a macro
36   `OVERRIDE_OPTIONS' to take account of this.  This macro, if
37   defined, is executed once just after all the command options have
38   been parsed.
39
40   The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
41   get control.  */
42
43#define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2)
44#define SUBTARGET_OVERRIDE_OPTIONS					\
45do {									\
46  if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS))		\
47    {									\
48      target_flags &= ~NON_POWERPC_MASKS;				\
49      warning ("-maix64 and POWER architecture are incompatible");	\
50    }									\
51  if (TARGET_64BIT && ! TARGET_POWERPC64)				\
52    {									\
53      target_flags |= MASK_POWERPC64;					\
54      warning ("-maix64 requires PowerPC64 architecture remain enabled"); \
55    }									\
56  if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
57    {									\
58      error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
59    }									\
60} while (0);
61
62#undef ASM_SPEC
63#define ASM_SPEC "-u %{maix64:-a64 -mppc64} %(asm_cpu)"
64
65/* Common ASM definitions used by ASM_SPEC amonst the various targets
66   for handling -mcpu=xxx switches.  */
67#undef ASM_CPU_SPEC
68#define ASM_CPU_SPEC \
69"%{!mcpu*: %{!maix64: \
70  %{mpower: %{!mpower2: -mpwr}} \
71  %{mpower2: -mpwr2} \
72  %{mpowerpc*: %{!mpowerpc64: -mppc}} \
73  %{mpowerpc64: -mppc64} \
74  %{!mpower*: %{!mpowerpc*: %(asm_default)}}}} \
75%{mcpu=common: -mcom} \
76%{mcpu=power: -mpwr} \
77%{mcpu=power2: -mpwr2} \
78%{mcpu=powerpc: -mppc} \
79%{mcpu=rios: -mpwr} \
80%{mcpu=rios1: -mpwr} \
81%{mcpu=rios2: -mpwr2} \
82%{mcpu=rsc: -mpwr} \
83%{mcpu=rsc1: -mpwr} \
84%{mcpu=rs64a: -mppc} \
85%{mcpu=403: -mppc} \
86%{mcpu=505: -mppc} \
87%{mcpu=601: -m601} \
88%{mcpu=602: -mppc} \
89%{mcpu=603: -m603} \
90%{mcpu=603e: -m603} \
91%{mcpu=604: -m604} \
92%{mcpu=604e: -m604} \
93%{mcpu=620: -mppc} \
94%{mcpu=630: -mppc} \
95%{mcpu=821: -mppc} \
96%{mcpu=860: -mppc}"
97
98#undef	ASM_DEFAULT_SPEC
99#define ASM_DEFAULT_SPEC "-mcom"
100
101#undef CPP_PREDEFINES
102#define CPP_PREDEFINES "-D_IBMR2 -D_POWER -D_AIX -D_AIX32 -D_AIX41 -D_AIX43 \
103-D_LONG_LONG -Asystem=unix -Asystem=aix"
104
105#undef CPP_SPEC
106#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
107   %{ansi: -D_ANSI_C_SOURCE}\
108   %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}\
109   %{mpe: -I/usr/lpp/ppe.poe/include}\
110   %{pthread: -D_THREAD_SAFE}\
111   %(cpp_cpu)"
112
113/* The GNU C++ standard library requires that these macros be
114   defined.  */
115#undef CPLUSPLUS_CPP_SPEC
116#define CPLUSPLUS_CPP_SPEC			\
117  "-D_XOPEN_SOURCE=500				\
118   -D_XOPEN_SOURCE_EXTENDED=1			\
119   -D_LARGE_FILE_API				\
120   -D_ALL_SOURCE                                \
121   %{maix64: -D__64BIT__ -D_ARCH_PPC -D__LONG_MAX__=9223372036854775807L}\
122   %{mpe: -I/usr/lpp/ppe.poe/include}\
123   %{pthread: -D_THREAD_SAFE}\
124   %(cpp_cpu)"
125
126/* Common CPP definitions used by CPP_SPEC among the various targets
127   for handling -mcpu=xxx switches.  */
128#undef CPP_CPU_SPEC
129#define CPP_CPU_SPEC \
130"%{!mcpu*: %{!maix64: \
131  %{mpower: %{!mpower2: -D_ARCH_PWR}} \
132  %{mpower2: -D_ARCH_PWR2} \
133  %{mpowerpc*: -D_ARCH_PPC} \
134  %{!mpower*: %{!mpowerpc*: %(cpp_default)}}}} \
135%{mcpu=common: -D_ARCH_COM} \
136%{mcpu=power: -D_ARCH_PWR} \
137%{mcpu=power2: -D_ARCH_PWR2} \
138%{mcpu=powerpc: -D_ARCH_PPC} \
139%{mcpu=rios: -D_ARCH_PWR} \
140%{mcpu=rios1: -D_ARCH_PWR} \
141%{mcpu=rios2: -D_ARCH_PWR2} \
142%{mcpu=rsc: -D_ARCH_PWR} \
143%{mcpu=rsc1: -D_ARCH_PWR} \
144%{mcpu=rs64a: -D_ARCH_PPC} \
145%{mcpu=403: -D_ARCH_PPC} \
146%{mcpu=505: -D_ARCH_PPC} \
147%{mcpu=601: -D_ARCH_PPC -D_ARCH_PWR} \
148%{mcpu=602: -D_ARCH_PPC} \
149%{mcpu=603: -D_ARCH_PPC} \
150%{mcpu=603e: -D_ARCH_PPC} \
151%{mcpu=604: -D_ARCH_PPC} \
152%{mcpu=620: -D_ARCH_PPC} \
153%{mcpu=630: -D_ARCH_PPC} \
154%{mcpu=821: -D_ARCH_PPC} \
155%{mcpu=860: -D_ARCH_PPC}"
156
157#undef	CPP_DEFAULT_SPEC
158#define CPP_DEFAULT_SPEC "-D_ARCH_COM"
159
160#undef TARGET_DEFAULT
161#define TARGET_DEFAULT MASK_NEW_MNEMONICS
162
163#undef PROCESSOR_DEFAULT
164#define PROCESSOR_DEFAULT PROCESSOR_PPC604
165
166/* Define this macro as a C expression for the initializer of an
167   array of string to tell the driver program which options are
168   defaults for this target and thus do not need to be handled
169   specially when using `MULTILIB_OPTIONS'.
170
171   Do not define this macro if `MULTILIB_OPTIONS' is not defined in
172   the target makefile fragment or if none of the options listed in
173   `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
174
175#undef	MULTILIB_DEFAULTS
176#define	MULTILIB_DEFAULTS { "mcpu=common" }
177
178#undef LIB_SPEC
179#define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\
180   %{p:-L/lib/profiled -L/usr/lib/profiled}\
181   %{!maix64:%{!shared:%{g*:-lg}}}\
182   %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
183   %{pthread:-L/usr/lib/threads -lpthreads -lc_r /usr/lib/libc.a}\
184   %{!pthread:-lc}"
185
186#undef LINK_SPEC
187#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
188   %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
189   %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}"
190
191#undef STARTFILE_SPEC
192#define STARTFILE_SPEC "%{!shared:\
193   %{mpe:%{pg:/usr/lpp/ppe.poe/lib/gcrt0.o}\
194         %{!pg:%{p:/usr/lpp/ppe.poe/lib/mcrt0.o}\
195               %{!p:/usr/lpp/ppe.poe/lib/crt0.o}}}\
196   %{!mpe:\
197     %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
198     %{!maix64:\
199       %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
200       %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}}"
201
202/* Since there are separate multilibs for pthreads, determine the
203   thread model based on the command-line arguments.  */
204#define THREAD_MODEL_SPEC "%{pthread:posix}%{!pthread:single}"
205
206/* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
207
208#undef PTRDIFF_TYPE
209#define PTRDIFF_TYPE "long int"
210
211/* AIX 4 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC
212   and "cror 31,31,31" for POWER architecture.  */
213
214#undef RS6000_CALL_GLUE
215#define RS6000_CALL_GLUE "{cror 31,31,31|nop}"
216
217/* AIX 4.2 and above provides initialization and finalization function
218   support from linker command line.  */
219#undef HAS_INIT_SECTION
220#define HAS_INIT_SECTION
221
222#undef LD_INIT_SWITCH
223#define LD_INIT_SWITCH "-binitfini"
224