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51fbbb92 DE |
1 | /* Definitions of target machine for GNU compiler, |
2 | for IBM RS/6000 POWER running AIX V7.1. | |
a5544970 | 3 | Copyright (C) 2002-2019 Free Software Foundation, Inc. |
51fbbb92 DE |
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 \ | |
26 | do { \ | |
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 | if ((rs6000_isa_flags_explicit \ | |
43 | & OPTION_MASK_MINIMAL_TOC) != 0) \ | |
44 | { \ | |
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); \ | |
49 | } \ | |
50 | if (rs6000_current_cmodel != CMODEL_SMALL) \ | |
51 | { \ | |
52 | TARGET_NO_FP_IN_TOC = 0; \ | |
53 | TARGET_NO_SUM_IN_TOC = 0; \ | |
54 | } \ | |
55 | if (rs6000_current_cmodel == CMODEL_MEDIUM) \ | |
56 | { \ | |
57 | rs6000_current_cmodel = CMODEL_LARGE; \ | |
58 | } \ | |
e73d717b | 59 | } while (0) |
51fbbb92 DE |
60 | |
61 | #undef ASM_SPEC | |
28a09576 | 62 | #define ASM_SPEC "-u %{maix64:-a64} %(asm_cpu)" |
51fbbb92 DE |
63 | |
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. */ | |
68 | #undef ASM_CPU_SPEC | |
69 | #define ASM_CPU_SPEC \ | |
28a09576 AM |
70 | "%{mcpu=native: %(asm_cpu_native); \ |
71 | mcpu=power9: -mpwr9; \ | |
72 | mcpu=power8: -mpwr8; \ | |
73 | mcpu=power7: -mpwr7; \ | |
74 | mcpu=power6x|mcpu=power6: -mpwr6; \ | |
75 | mcpu=power5+: -mpwr5x; \ | |
76 | mcpu=power5: -mpwr5; \ | |
77 | mcpu=power4: -mpwr4; \ | |
78 | mcpu=power3: -m620; \ | |
79 | mcpu=powerpc: -mppc; \ | |
f7bdd292 | 80 | mcpu=rs64: -mppc; \ |
28a09576 AM |
81 | mcpu=603: -m603; \ |
82 | mcpu=603e: -m603; \ | |
83 | mcpu=604: -m604; \ | |
84 | mcpu=604e: -m604; \ | |
85 | mcpu=620: -m620; \ | |
86 | mcpu=630: -m620; \ | |
87 | mcpu=970|mcpu=G5: -m970; \ | |
88 | !mcpu*: %{mvsx: -mpwr6; \ | |
89 | maltivec: -m970; \ | |
90 | maix64|mpowerpc64: -mppc64; \ | |
f7bdd292 | 91 | : %(asm_default)}} \ |
51fbbb92 DE |
92 | -many" |
93 | ||
94 | #undef ASM_DEFAULT_SPEC | |
95 | #define ASM_DEFAULT_SPEC "-mpwr4" | |
96 | ||
97 | #undef TARGET_OS_CPP_BUILTINS | |
98 | #define TARGET_OS_CPP_BUILTINS() \ | |
99 | do \ | |
100 | { \ | |
101 | builtin_define ("_AIX43"); \ | |
102 | builtin_define ("_AIX51"); \ | |
103 | builtin_define ("_AIX52"); \ | |
104 | builtin_define ("_AIX53"); \ | |
105 | builtin_define ("_AIX61"); \ | |
106 | builtin_define ("_AIX71"); \ | |
107 | TARGET_OS_AIX_CPP_BUILTINS (); \ | |
108 | } \ | |
109 | while (0) | |
110 | ||
111 | #undef CPP_SPEC | |
112 | #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \ | |
113 | %{ansi: -D_ANSI_C_SOURCE} \ | |
114 | %{maix64: -D__64BIT__} \ | |
115 | %{mpe: -I%R/usr/lpp/ppe.poe/include} \ | |
116 | %{pthread: -D_THREAD_SAFE}" | |
117 | ||
118 | /* The GNU C++ standard library requires that these macros be | |
119 | defined. Synchronize with libstdc++ os_defines.h. */ | |
120 | #undef CPLUSPLUS_CPP_SPEC | |
121 | #define CPLUSPLUS_CPP_SPEC \ | |
122 | "-D_ALL_SOURCE -D__COMPATMATH__ \ | |
123 | %{maix64: -D__64BIT__} \ | |
124 | %{mpe: -I%R/usr/lpp/ppe.poe/include} \ | |
125 | %{pthread: -D_THREAD_SAFE}" | |
126 | ||
e7771552 DE |
127 | #define RS6000_CPU(NAME, CPU, FLAGS) |
128 | #include "rs6000-cpus.def" | |
129 | #undef RS6000_CPU | |
130 | ||
51fbbb92 | 131 | #undef TARGET_DEFAULT |
74fc2a2b | 132 | #define TARGET_DEFAULT (MASK_PPC_GPOPT | MASK_PPC_GFXOPT | MASK_MFCRF) |
51fbbb92 DE |
133 | |
134 | #undef PROCESSOR_DEFAULT | |
135 | #define PROCESSOR_DEFAULT PROCESSOR_POWER7 | |
136 | #undef PROCESSOR_DEFAULT64 | |
137 | #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 | |
138 | ||
139 | /* AIX 7.1 kernel and assembler have necessary support for Altivec and VSX. */ | |
140 | #undef OS_MISSING_ALTIVEC | |
141 | ||
142 | /* Define this macro as a C expression for the initializer of an | |
143 | array of string to tell the driver program which options are | |
144 | defaults for this target and thus do not need to be handled | |
145 | specially when using `MULTILIB_OPTIONS'. | |
146 | ||
147 | Do not define this macro if `MULTILIB_OPTIONS' is not defined in | |
148 | the target makefile fragment or if none of the options listed in | |
149 | `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ | |
150 | ||
151 | #undef MULTILIB_DEFAULTS | |
152 | ||
153 | #undef LIB_SPEC | |
154 | #define LIB_SPEC "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ | |
155 | %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ | |
156 | %{!maix64:%{!shared:%{g*:-lg}}}\ | |
157 | %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ | |
158 | %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ | |
159 | %{pthread:-lpthreads} -lc" | |
160 | ||
161 | #undef LINK_SPEC | |
162 | #define LINK_SPEC "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ | |
163 | %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ | |
164 | %{!maix64:%{!shared:%{g*: %(link_libg) }}} %{maix64:-b64}\ | |
165 | %{mpe:-binitfini:poe_remote_main}" | |
166 | ||
167 | #undef STARTFILE_SPEC | |
168 | #define STARTFILE_SPEC "%{!shared:\ | |
169 | %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ | |
170 | %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ | |
171 | %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ | |
172 | %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s" | |
173 | ||
174 | /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ | |
175 | ||
176 | #undef PTRDIFF_TYPE | |
177 | #define PTRDIFF_TYPE "long int" | |
178 | ||
179 | /* Type used for wchar_t, as a string used in a declaration. */ | |
180 | #undef WCHAR_TYPE | |
181 | #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") | |
182 | ||
183 | /* Width of wchar_t in bits. */ | |
184 | #undef WCHAR_TYPE_SIZE | |
185 | #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) | |
186 | ||
187 | /* AIX 4.2 and above provides initialization and finalization function | |
188 | support from linker command line. */ | |
189 | #undef HAS_INIT_SECTION | |
190 | #define HAS_INIT_SECTION | |
191 | ||
192 | #undef LD_INIT_SWITCH | |
193 | #define LD_INIT_SWITCH "-binitfini" | |
194 | ||
195 | #ifndef _AIX52 | |
196 | extern long long int atoll(const char *); | |
197 | #endif | |
198 | ||
199 | /* This target uses the aix64.opt file. */ | |
200 | #define TARGET_USES_AIX64_OPT 1 | |
201 | ||
202 | /* Large TOC Support */ | |
203 | #ifdef HAVE_LD_LARGE_TOC | |
204 | #undef TARGET_CMODEL | |
205 | #define TARGET_CMODEL rs6000_current_cmodel | |
206 | #define SET_CMODEL(opt) rs6000_current_cmodel = opt | |
207 | #else | |
208 | #define SET_CMODEL(opt) do {} while (0) | |
209 | #endif | |
210 | ||
211 | /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, | |
212 | but does not have crtbegin/end. */ | |
213 | ||
51fbbb92 DE |
214 | #define TARGET_AIX_VERSION 71 |
215 | ||
216 | /* AIX 7.1 supports DWARF3 debugging, but XCOFF remains the default. */ | |
217 | #define DWARF2_DEBUGGING_INFO 1 | |
218 | #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG | |
219 | #define DEBUG_INFO_SECTION "0x10000" | |
220 | #define DEBUG_LINE_SECTION "0x20000" | |
221 | #define DEBUG_PUBNAMES_SECTION "0x30000" | |
222 | #define DEBUG_PUBTYPES_SECTION "0x40000" | |
223 | #define DEBUG_ARANGES_SECTION "0x50000" | |
224 | #define DEBUG_ABBREV_SECTION "0x60000" | |
225 | #define DEBUG_STR_SECTION "0x70000" | |
226 | #define DEBUG_RANGES_SECTION "0x80000" | |
227 | #define DEBUG_LOC_SECTION "0x90000" | |
228 | #define DEBUG_FRAME_SECTION "0xA0000" | |
229 | #define DEBUG_MACINFO_SECTION "0xB0000" | |
230 | #define DEBUG_MACRO_SECTION "0xB0000" | |
231 |