1 /* Definitions of target machine for GNU compiler,
2 for IBM RS/6000 POWER running AIX V6.1.
3 Copyright (C) 2002-2012 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"); \
42 if ((rs6000_isa_flags_explicit \
43 & OPTION_MASK_MINIMAL_TOC) != 0) \
45 if (global_options_set.x_rs6000_current_cmodel \
46 && rs6000_current_cmodel != CMODEL_SMALL) \
47 error ("-mcmodel incompatible with other toc options"); \
48 SET_CMODEL (CMODEL_SMALL); \
50 if (rs6000_current_cmodel != CMODEL_SMALL) \
52 TARGET_NO_FP_IN_TOC = 0; \
53 TARGET_NO_SUM_IN_TOC = 0; \
55 if (rs6000_current_cmodel == CMODEL_MEDIUM) \
57 rs6000_current_cmodel = CMODEL_LARGE; \
62 #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)"
64 /* Common ASM definitions used by ASM_SPEC amongst the various targets for
65 handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.c to
66 provide the default assembler options if the user uses -mcpu=native, so if
67 you make changes here, make them there also. */
69 #define ASM_CPU_SPEC \
70 "%{!mcpu*: %{!maix64: \
71 %{mpowerpc64: -mppc64} \
73 %{!maltivec: %{!mpowerpc64: %(asm_default)}}}} \
74 %{mcpu=native: %(asm_cpu_native)} \
75 %{mcpu=power3: -m620} \
76 %{mcpu=power4: -mpwr4} \
77 %{mcpu=power5: -mpwr5} \
78 %{mcpu=power5+: -mpwr5x} \
79 %{mcpu=power6: -mpwr6} \
80 %{mcpu=power6x: -mpwr6} \
81 %{mcpu=power7: -mpwr7} \
82 %{mcpu=power8: -mpwr8} \
83 %{mcpu=powerpc: -mppc} \
84 %{mcpu=rs64a: -mppc} \
93 %{mvsx: %{!mcpu*: -mpwr6}} \
96 #undef ASM_DEFAULT_SPEC
97 #define ASM_DEFAULT_SPEC "-mpwr4"
99 #undef TARGET_OS_CPP_BUILTINS
100 #define TARGET_OS_CPP_BUILTINS() \
103 builtin_define ("_AIX43"); \
104 builtin_define ("_AIX51"); \
105 builtin_define ("_AIX52"); \
106 builtin_define ("_AIX53"); \
107 builtin_define ("_AIX61"); \
108 TARGET_OS_AIX_CPP_BUILTINS (); \
113 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
114 %{ansi: -D_ANSI_C_SOURCE} \
115 %{maix64: -D__64BIT__} \
116 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
117 %{pthread: -D_THREAD_SAFE}"
119 /* The GNU C++ standard library requires that these macros be
120 defined. Synchronize with libstdc++ os_defines.h. */
121 #undef CPLUSPLUS_CPP_SPEC
122 #define CPLUSPLUS_CPP_SPEC \
123 "-D_ALL_SOURCE -D__COMPATMATH__ \
124 %{maix64: -D__64BIT__} \
125 %{mpe: -I%R/usr/lpp/ppe.poe/include} \
126 %{pthread: -D_THREAD_SAFE}"
128 #undef TARGET_DEFAULT
129 #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF)
131 #undef PROCESSOR_DEFAULT
132 #define PROCESSOR_DEFAULT PROCESSOR_POWER7
133 #undef PROCESSOR_DEFAULT64
134 #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
136 /* Define this macro as a C expression for the initializer of an
137 array of string to tell the driver program which options are
138 defaults for this target and thus do not need to be handled
139 specially when using `MULTILIB_OPTIONS'.
141 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
142 the target makefile fragment or if none of the options listed in
143 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
145 #undef MULTILIB_DEFAULTS
148 #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\
149 %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\
150 %{!maix64:%{!shared:%{g*:-lg}}}\
151 %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\
152 %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\
153 %{pthread:-lpthreads} -lc"
156 #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\
157 %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\
158 %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\
159 %{mpe:-binitfini:poe_remote_main}"
161 #undef STARTFILE_SPEC
162 #define STARTFILE_SPEC "%{!shared:\
163 %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\
165 %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\
166 %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}"
168 /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */
171 #define PTRDIFF_TYPE "long int"
173 /* Type used for wchar_t, as a string used in a declaration. */
175 #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int")
177 /* Width of wchar_t in bits. */
178 #undef WCHAR_TYPE_SIZE
179 #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32)
181 /* AIX 4.2 and above provides initialization and finalization function
182 support from linker command line. */
183 #undef HAS_INIT_SECTION
184 #define HAS_INIT_SECTION
186 #undef LD_INIT_SWITCH
187 #define LD_INIT_SWITCH "-binitfini"
189 /* AIX 5.2 has the float and long double forms of math functions. */
190 #undef TARGET_C99_FUNCTIONS
191 #define TARGET_C99_FUNCTIONS 1
194 extern long long int atoll(const char *);
197 /* This target uses the aix64.opt file. */
198 #define TARGET_USES_AIX64_OPT 1
200 /* Large TOC Support */
201 #ifdef HAVE_LD_LARGE_TOC
203 #define TARGET_CMODEL rs6000_current_cmodel
204 #define SET_CMODEL(opt) rs6000_current_cmodel = opt
206 #define SET_CMODEL(opt) do {} while (0)
209 /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION,
210 but does not have crtbegin/end. */
212 #define TARGET_USE_JCR_SECTION 0
214 #define TARGET_AIX_VERSION 61