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ca94e524 | 1 | /* Definitions of target machine for GNU compiler, |
93511cb4 | 2 | for IBM RS/6000 POWER running AIX V5.3. |
66647d44 | 3 | Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
ca94e524 DE |
4 | Free Software Foundation, Inc. |
5 | Contributed by David Edelsohn (edelsohn@gnu.org). | |
6 | ||
7 | This file is part of GCC. | |
8 | ||
9 | GCC is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU General Public License as published | |
11 | by the Free Software Foundation; either version 3, or (at your | |
12 | option) any later version. | |
13 | ||
14 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
16 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
17 | License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
20 | along with GCC; see the file COPYING3. If not see | |
21 | <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | /* Sometimes certain combinations of command options do not make sense | |
24 | on a particular target machine. You can define a macro | |
25 | `OVERRIDE_OPTIONS' to take account of this. This macro, if | |
26 | defined, is executed once just after all the command options have | |
27 | been parsed. | |
28 | ||
29 | The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to | |
30 | get control. */ | |
31 | ||
32 | #define NON_POWERPC_MASKS (MASK_POWER | MASK_POWER2) | |
33 | #define SUBTARGET_OVERRIDE_OPTIONS \ | |
34 | do { \ | |
35 | if (TARGET_64BIT && (target_flags & NON_POWERPC_MASKS)) \ | |
36 | { \ | |
37 | target_flags &= ~NON_POWERPC_MASKS; \ | |
38 | warning (0, "-maix64 and POWER architecture are incompatible"); \ | |
39 | } \ | |
40 | if (TARGET_64BIT && ! TARGET_POWERPC64) \ | |
41 | { \ | |
42 | target_flags |= MASK_POWERPC64; \ | |
43 | warning (0, "-maix64 requires PowerPC64 architecture remain enabled"); \ | |
44 | } \ | |
45 | if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ | |
46 | { \ | |
47 | rs6000_long_double_type_size = 64; \ | |
48 | if (rs6000_explicit_options.long_double) \ | |
49 | warning (0, "soft-float and long-double-128 are incompatible"); \ | |
50 | } \ | |
51 | if (TARGET_POWERPC64 && ! TARGET_64BIT) \ | |
52 | { \ | |
53 | error ("-maix64 required: 64-bit computation with 32-bit addressing not yet supported"); \ | |
54 | } \ | |
55 | } while (0); | |
56 | ||
57 | #undef ASM_SPEC | |
58 | #define ASM_SPEC "-u %{maix64:-a64 %{!mcpu*:-mppc64}} %(asm_cpu)" | |
59 | ||
60 | /* Common ASM definitions used by ASM_SPEC amongst the various targets | |
61 | for handling -mcpu=xxx switches. */ | |
62 | #undef ASM_CPU_SPEC | |
63 | #define ASM_CPU_SPEC \ | |
64 | "%{!mcpu*: %{!maix64: \ | |
65 | %{mpowerpc64: -mppc64} \ | |
66 | %{maltivec: -m970} \ | |
67 | %{!maltivec: %{!mpower64: %(asm_default)}}}} \ | |
68 | %{mcpu=power3: -m620} \ | |
69 | %{mcpu=power4: -mpwr4} \ | |
70 | %{mcpu=power5: -mpwr5} \ | |
71 | %{mcpu=power5+: -mpwr5x} \ | |
72 | %{mcpu=power6: -mpwr6} \ | |
73 | %{mcpu=power6x: -mpwr6} \ | |
74 | %{mcpu=powerpc: -mppc} \ | |
75 | %{mcpu=rs64a: -mppc} \ | |
76 | %{mcpu=603: -m603} \ | |
77 | %{mcpu=603e: -m603} \ | |
78 | %{mcpu=604: -m604} \ | |
79 | %{mcpu=604e: -m604} \ | |
80 | %{mcpu=620: -m620} \ | |
81 | %{mcpu=630: -m620} \ | |
82 | %{mcpu=970: -m970} \ | |
83 | %{mcpu=G5: -m970}" | |
84 | ||
85 | #undef ASM_DEFAULT_SPEC | |
86 | #define ASM_DEFAULT_SPEC "-mppc" | |
87 | ||
88 | #undef TARGET_OS_CPP_BUILTINS | |
89 | #define TARGET_OS_CPP_BUILTINS() \ | |
90 | do \ | |
91 | { \ | |
92 | builtin_define ("_AIX43"); \ | |
93 | builtin_define ("_AIX51"); \ | |
94 | builtin_define ("_AIX52"); \ | |
95 | builtin_define ("_AIX53"); \ | |
96 | TARGET_OS_AIX_CPP_BUILTINS (); \ | |
97 | } \ | |
98 | while (0) | |
99 | ||
100 | #undef CPP_SPEC | |
101 | #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ | |
102 | %{ansi: -D_ANSI_C_SOURCE} \ | |
103 | %{maix64: -D__64BIT__} \ | |
104 | %{mpe: -I/usr/lpp/ppe.poe/include} \ | |
105 | %{pthread: -D_THREAD_SAFE}" | |
106 | ||
107 | /* The GNU C++ standard library requires that these macros be | |
108 | defined. Synchronize with libstdc++ os_defines.h. */ | |
109 | #undef CPLUSPLUS_CPP_SPEC | |
110 | #define CPLUSPLUS_CPP_SPEC \ | |
111 | "-D_ALL_SOURCE \ | |
112 | %{maix64: -D__64BIT__} \ | |
113 | %{mpe: -I/usr/lpp/ppe.poe/include} \ | |
114 | %{pthread: -D_THREAD_SAFE}" | |
115 | ||
116 | #undef TARGET_DEFAULT | |
117 | #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS) | |
118 | ||
119 | #undef PROCESSOR_DEFAULT | |
120 | #define PROCESSOR_DEFAULT PROCESSOR_POWER5 | |
121 | #undef PROCESSOR_DEFAULT64 | |
122 | #define PROCESSOR_DEFAULT64 PROCESSOR_POWER5 | |
123 | ||
124 | #undef TARGET_POWER | |
125 | #define TARGET_POWER 0 | |
126 | ||
127 | /* Define this macro as a C expression for the initializer of an | |
128 | array of string to tell the driver program which options are | |
129 | defaults for this target and thus do not need to be handled | |
130 | specially when using `MULTILIB_OPTIONS'. | |
131 | ||
132 | Do not define this macro if `MULTILIB_OPTIONS' is not defined in | |
133 | the target makefile fragment or if none of the options listed in | |
134 | `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ | |
135 | ||
136 | #undef MULTILIB_DEFAULTS | |
137 | ||
138 | #undef LIB_SPEC | |
139 | #define LIB_SPEC "%{pg:-L/lib/profiled -L/usr/lib/profiled}\ | |
140 | %{p:-L/lib/profiled -L/usr/lib/profiled}\ | |
141 | %{!maix64:%{!shared:%{g*:-lg}}}\ | |
142 | %{mpe:-L/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ | |
143 | %{pthread:-lpthreads} -lc" | |
144 | ||
145 | #undef LINK_SPEC | |
146 | #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro} -bnodelcsect\ | |
147 | %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ | |
148 | %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ | |
149 | %{mpe:-binitfini:poe_remote_main}" | |
150 | ||
151 | #undef STARTFILE_SPEC | |
152 | #define STARTFILE_SPEC "%{!shared:\ | |
153 | %{maix64:%{pg:gcrt0_64%O%s}%{!pg:%{p:mcrt0_64%O%s}%{!p:crt0_64%O%s}}}\ | |
154 | %{!maix64:\ | |
155 | %{pthread:%{pg:gcrt0_r%O%s}%{!pg:%{p:mcrt0_r%O%s}%{!p:crt0_r%O%s}}}\ | |
156 | %{!pthread:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}}}" | |
157 | ||
158 | /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ | |
159 | ||
160 | #undef PTRDIFF_TYPE | |
161 | #define PTRDIFF_TYPE "long int" | |
162 | ||
163 | /* Type used for wchar_t, as a string used in a declaration. */ | |
164 | #undef WCHAR_TYPE | |
165 | #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") | |
166 | ||
167 | /* Width of wchar_t in bits. */ | |
168 | #undef WCHAR_TYPE_SIZE | |
169 | #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) | |
170 | ||
171 | /* AIX V5 uses PowerPC nop (ori 0,0,0) instruction as call glue for PowerPC | |
172 | and "cror 31,31,31" for POWER architecture. */ | |
173 | ||
174 | #undef RS6000_CALL_GLUE | |
175 | #define RS6000_CALL_GLUE "{cror 31,31,31|nop}" | |
176 | ||
177 | /* AIX 4.2 and above provides initialization and finalization function | |
178 | support from linker command line. */ | |
179 | #undef HAS_INIT_SECTION | |
180 | #define HAS_INIT_SECTION | |
181 | ||
182 | #undef LD_INIT_SWITCH | |
183 | #define LD_INIT_SWITCH "-binitfini" | |
184 | ||
185 | /* AIX 5.2 has the float and long double forms of math functions. */ | |
186 | #undef TARGET_C99_FUNCTIONS | |
187 | #define TARGET_C99_FUNCTIONS 1 | |
188 | ||
189 | #ifndef _AIX52 | |
190 | extern long long int atoll(const char *); | |
191 | #endif | |
192 | ||
193 | /* This target uses the aix64.opt file. */ | |
194 | #define TARGET_USES_AIX64_OPT 1 | |
ee06c6a5 DE |
195 | |
196 | /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, | |
197 | but does not have crtbegin/end. */ | |
198 | ||
199 | #define TARGET_USE_JCR_SECTION 0 |