aix43.h revision 1.5 
1/* Definitions of target machine for GNU compiler,
2   for IBM RS/6000 POWER running AIX version 4.3.
3   Copyright (C) 1998-2015 Free Software Foundation, Inc.
4   Contributed by David Edelsohn (edelsohn@gnu.org).
5
6   This file is part of GCC.
7
8   GCC is free software; you can redistribute it and/or modify it
9   under the terms of the GNU General Public License as published
10   by the Free Software Foundation; either version 3, or (at your
11   option) any later version.
12
13   GCC is distributed in the hope that it will be useful, but WITHOUT
14   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
16   License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with GCC; see the file COPYING3.  If not see
20   <http://www.gnu.org/licenses/>.  */
21
22/* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
23   get control in TARGET_OPTION_OVERRIDE.  */
24
25#define SUBTARGET_OVERRIDE_OPTIONS					\
26do {									\
27  if (TARGET_64BIT && ! TARGET_POWERPC64)				\
28    {									\
29      rs6000_isa_flags |= OPTION_MASK_POWERPC64;			\
30      warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
31    }									\
32  if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128)			\
33    {									\
34      rs6000_long_double_type_size = 64;				\
35      if (global_options_set.x_rs6000_long_double_type_size)		\
36	warning (0, "soft-float and long-double-128 are incompatible");	\
37    }									\
38  if (TARGET_POWERPC64 && ! TARGET_64BIT)				\
39    {									\
40      error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
41    }									\
42} while (0);
43
44#undef ASM_SPEC
45#define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
46
47/* Common ASM definitions used by ASM_SPEC amongst the various targets
48   for handling -mcpu=xxx switches.  */
49#undef ASM_CPU_SPEC
50#define ASM_CPU_SPEC \
51"%{!mcpu*: %{!maix64: \
52  %{!mpowerpc64: %(asm_default)} \
53  %{mpowerpc64: -mppc64}}} \
54%{mcpu=power3: -m620} \
55%{mcpu=power4: -m620} \
56%{mcpu=powerpc: -mppc} \
57%{mcpu=rs64a: -mppc} \
58%{mcpu=601: -m601} \
59%{mcpu=602: -mppc} \
60%{mcpu=603: -m603} \
61%{mcpu=603e: -m603} \
62%{mcpu=604: -m604} \
63%{mcpu=604e: -m604} \
64%{mcpu=620: -m620} \
65%{mcpu=630: -m620}"
66
67#undef	ASM_DEFAULT_SPEC
68#define ASM_DEFAULT_SPEC "-mppc"
69
70#undef TARGET_OS_CPP_BUILTINS
71#define TARGET_OS_CPP_BUILTINS()     \
72  do                                 \
73    {                                \
74      builtin_define ("_AIX43");     \
75      TARGET_OS_AIX_CPP_BUILTINS (); \
76    }                                \
77  while (0)
78
79#undef CPP_SPEC
80#define CPP_SPEC "%{posix: -D_POSIX_SOURCE}\
81   %{ansi: -D_ANSI_C_SOURCE}\
82   %{maix64: -D__64BIT__}\
83   %{mpe: -I%R/usr/lpp/ppe.poe/include}\
84   %{pthread: -D_THREAD_SAFE}"
85
86/* The GNU C++ standard library requires that these macros be
87   defined.  */
88#undef CPLUSPLUS_CPP_SPEC
89#define CPLUSPLUS_CPP_SPEC			\
90  "-D_ALL_SOURCE				\
91   %{maix64: -D__64BIT__}			\
92   %{mpe: -I%R/usr/lpp/ppe.poe/include}		\
93   %{pthread: -D_THREAD_SAFE}"
94
95#undef TARGET_DEFAULT
96#define TARGET_DEFAULT 0
97
98#undef PROCESSOR_DEFAULT
99#define PROCESSOR_DEFAULT PROCESSOR_PPC604e
100
101/* AIX does not support Altivec.  */
102#undef  TARGET_ALTIVEC
103#define TARGET_ALTIVEC 0
104#undef  TARGET_ALTIVEC_ABI
105#define TARGET_ALTIVEC_ABI 0
106
107/* Define this macro as a C expression for the initializer of an
108   array of string to tell the driver program which options are
109   defaults for this target and thus do not need to be handled
110   specially when using `MULTILIB_OPTIONS'.
111
112   Do not define this macro if `MULTILIB_OPTIONS' is not defined in
113   the target makefile fragment or if none of the options listed in
114   `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
115
116#undef	MULTILIB_DEFAULTS
117#define	MULTILIB_DEFAULTS { "mcpu=common" }
118
119#undef LIB_SPEC
120#define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
121   %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
122   %{!maix64:%{!shared:%{g*:-lg}}}\
123   %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
124   %{pthread:-L%R/usr/lib/threads -lpthreads -lc_r %R/usr/lib/libc.a}\
125   %{!pthread:-lc}"
126
127#undef LINK_SPEC
128#define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
129   %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
130   %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
131   %{mpe:-binitfini:poe_remote_main}"
132
133#undef STARTFILE_SPEC
134#define STARTFILE_SPEC "%{!shared:\
135   %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
136   %{!maix64:\
137     %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
138     %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
139
140/* AIX 4.3 typedefs ptrdiff_t as "long" while earlier releases used "int".  */
141
142#undef PTRDIFF_TYPE
143#define PTRDIFF_TYPE "long int"
144
145/* AIX 4.2 and above provides initialization and finalization function
146   support from linker command line.  */
147#undef HAS_INIT_SECTION
148#define HAS_INIT_SECTION
149
150#undef LD_INIT_SWITCH
151#define LD_INIT_SWITCH "-binitfini"
152
153/* The IBM AIX 4.x assembler doesn't support forward references in
154   .set directives.  We handle this by deferring the output of .set
155   directives to the end of the compilation unit.  */
156#define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) true
157
158/* This target uses the aix64.opt file.  */
159#define TARGET_USES_AIX64_OPT 1
160
161#define TARGET_AIX_VERSION 43
162
163#undef TARGET_LIBC_HAS_FUNCTION
164#define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function
165