1 /* Definitions of target machine for GNU compiler,
2 for IBM RS/6000 POWER running AIX V5.2.
3 Copyright (C) 2002-2015 Free Software Foundation, Inc.
4 Contributed by David Edelsohn (edelsohn@gnu.org).
6 This file is part of GCC.
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.
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.
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/>. */
22 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
23 get control in TARGET_OPTION_OVERRIDE. */
25 #define SUBTARGET_OVERRIDE_OPTIONS \
27 if (TARGET_64BIT && ! TARGET_POWERPC64) \
29 rs6000_isa_flags |= OPTION_MASK_POWERPC64; \
30 warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \
32 if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \
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"); \
38 if (TARGET_POWERPC64 && ! TARGET_64BIT) \
40 error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \
45 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
47 /* Common ASM definitions used by ASM_SPEC amongst the various targets
48 for handling -mcpu=xxx switches. */
50 #define ASM_CPU_SPEC \
51 "%{!mcpu*: %{!maix64: \
52 %{mpowerpc64: -mppc64} \
53 %{!mpowerpc64: %(asm_default)}}} \
54 %{mcpu=power3: -m620} \
55 %{mcpu=power4: -m620} \
56 %{mcpu=power5: -m620} \
57 %{mcpu=power5+: -m620} \
58 %{mcpu=power6: -m620} \
59 %{mcpu=power6x: -m620} \
60 %{mcpu=powerpc: -mppc} \
61 %{mcpu=rs64a: -mppc} \
71 #undef ASM_DEFAULT_SPEC
72 #define ASM_DEFAULT_SPEC "-mppc"
74 #undef TARGET_OS_CPP_BUILTINS
75 #define TARGET_OS_CPP_BUILTINS() \
78 builtin_define ("_AIX43"); \
79 builtin_define ("_AIX51"); \
80 builtin_define ("_AIX52"); \
81 TARGET_OS_AIX_CPP_BUILTINS (); \
86 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
87 %{ansi: -D_ANSI_C_SOURCE} \
88 %{maix64: -D__64BIT__} \
89 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
90 %{pthread: -D_THREAD_SAFE}"
92 /* The GNU C++ standard library requires that these macros be
93 defined. Synchronize with libstdc++ os_defines.h. */
94 #undef CPLUSPLUS_CPP_SPEC
95 #define CPLUSPLUS_CPP_SPEC \
97 %{maix64: -D__64BIT__} \
98 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
99 %{pthread: -D_THREAD_SAFE}"
101 #undef TARGET_DEFAULT
102 #define TARGET_DEFAULT 0
104 #undef PROCESSOR_DEFAULT
105 #define PROCESSOR_DEFAULT PROCESSOR_POWER4
106 #undef PROCESSOR_DEFAULT64
107 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER4
109 /* AIX does not support Altivec. */
110 #undef TARGET_ALTIVEC
111 #define TARGET_ALTIVEC 0
112 #undef TARGET_ALTIVEC_ABI
113 #define TARGET_ALTIVEC_ABI 0
114 #undef TARGET_EXTRA_BUILTINS
115 #define TARGET_EXTRA_BUILTINS 0
117 /* Define this macro as a C expression for the initializer of an
118 array of string to tell the driver program which options are
119 defaults for this target and thus do not need to be handled
120 specially when using `MULTILIB_OPTIONS'.
122 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
123 the target makefile fragment or if none of the options listed in
124 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
126 #undef MULTILIB_DEFAULTS
129 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
130 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
131 %{!maix64:%{!shared:%{g*:-lg}}}\
132 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
133 %{pthread:-lpthreads} -lc"
136 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\
137 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
138 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
139 %{mpe:-binitfini:poe_remote_main}"
141 #undef STARTFILE_SPEC
142 #define STARTFILE_SPEC "%{!shared:\
143 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
145 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
146 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
148 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
151 #define PTRDIFF_TYPE "long int"
153 /* Type used for wchar_t, as a string used in a declaration. */
155 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
157 /* Width of wchar_t in bits. */
158 #undef WCHAR_TYPE_SIZE
159 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
161 /* AIX 4.2 and above provides initialization and finalization function
162 support from linker command line. */
163 #undef HAS_INIT_SECTION
164 #define HAS_INIT_SECTION
166 #undef LD_INIT_SWITCH
167 #define LD_INIT_SWITCH "-binitfini"
170 extern long long int atoll(const char *);
173 /* This target uses the aix64.opt file. */
174 #define TARGET_USES_AIX64_OPT 1
176 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
177 but does not have crtbegin/end. */
179 #define TARGET_USE_JCR_SECTION 0
181 #define TARGET_AIX_VERSION 52