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39667263 DE |
1 | // SPDX-License-Identifier: GPL-3.0-or-later |
2 | /* Definitions of target machine for GNU compiler, | |
3 | for IBM RS/6000 POWER running AIX V7.3. | |
a945c346 | 4 | Copyright (C) 2002-2024 Free Software Foundation, Inc. |
39667263 DE |
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 | /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to | |
24 | get control in TARGET_OPTION_OVERRIDE. */ | |
25 | ||
26 | #define SUBTARGET_OVERRIDE_OPTIONS \ | |
27 | do { \ | |
28 | if (TARGET_64BIT && ! TARGET_POWERPC64) \ | |
29 | { \ | |
30 | rs6000_isa_flags |= OPTION_MASK_POWERPC64; \ | |
31 | warning (0, "%<-maix64%> requires PowerPC64 architecture remain enabled"); \ | |
32 | } \ | |
33 | if (TARGET_SOFT_FLOAT && TARGET_LONG_DOUBLE_128) \ | |
34 | { \ | |
35 | rs6000_long_double_type_size = 64; \ | |
00f34291 | 36 | if (OPTION_SET_P (rs6000_long_double_type_size)) \ |
58385f6a | 37 | warning (0, "%<soft-float%> and long-double-128 are incompatible"); \ |
39667263 DE |
38 | } \ |
39 | if (TARGET_POWERPC64 && ! TARGET_64BIT) \ | |
40 | { \ | |
41 | error ("%<-maix64%> required: 64-bit computation with 32-bit addressing not yet supported"); \ | |
42 | } \ | |
43 | if ((rs6000_isa_flags_explicit \ | |
44 | & OPTION_MASK_MINIMAL_TOC) != 0) \ | |
45 | { \ | |
00f34291 | 46 | if (OPTION_SET_P (rs6000_current_cmodel) \ |
39667263 DE |
47 | && rs6000_current_cmodel != CMODEL_SMALL) \ |
48 | error ("%<-mcmodel%> incompatible with other toc options"); \ | |
49 | SET_CMODEL (CMODEL_SMALL); \ | |
50 | } \ | |
51 | if (rs6000_current_cmodel != CMODEL_SMALL) \ | |
52 | { \ | |
53 | TARGET_NO_FP_IN_TOC = 1; \ | |
54 | TARGET_NO_SUM_IN_TOC = 1; \ | |
55 | } \ | |
56 | if (rs6000_current_cmodel == CMODEL_MEDIUM) \ | |
57 | { \ | |
58 | rs6000_current_cmodel = CMODEL_LARGE; \ | |
59 | } \ | |
60 | if (! strcmp (lang_hooks.name, "GNU Go") \ | |
61 | && TARGET_32BIT) \ | |
62 | { \ | |
63 | /* aix/ppc doesn't support -mvsx and -maltivec with Go */ \ | |
64 | rs6000_isa_flags &= ~(OPTION_MASK_VSX | OPTION_MASK_ALTIVEC); \ | |
65 | } \ | |
00f34291 | 66 | if (!OPTION_SET_P (dwarf_version)) \ |
39667263 DE |
67 | /* AIX only supports DWARF 4. */ \ |
68 | dwarf_version = 4; \ | |
69 | } while (0) | |
70 | ||
71 | #define ASM_SPEC32 "-a32" | |
72 | #define ASM_SPEC64 "-a64" | |
73 | #define ASM_SPEC_COMMON "-u %(asm_cpu)" | |
74 | ||
75 | /* Common ASM definitions used by ASM_SPEC amongst the various targets for | |
e53b6e56 | 76 | handling -mcpu=xxx switches. There is a parallel list in driver-rs6000.cc to |
39667263 DE |
77 | provide the default assembler options if the user uses -mcpu=native, so if |
78 | you make changes here, make them there also. */ | |
79 | #undef ASM_CPU_SPEC | |
80 | #define ASM_CPU_SPEC \ | |
81 | "%{mcpu=native: %(asm_cpu_native); \ | |
dc0f9a74 | 82 | mcpu=power11: -mpwr11; \ |
39667263 DE |
83 | mcpu=power10: -mpwr10; \ |
84 | mcpu=power9: -mpwr9; \ | |
85 | mcpu=power8: -mpwr8; \ | |
86 | mcpu=power7: -mpwr7; \ | |
87 | mcpu=power6x|mcpu=power6: -mpwr6; \ | |
88 | mcpu=power5+: -mpwr5x; \ | |
89 | mcpu=power5: -mpwr5; \ | |
90 | mcpu=power4: -mpwr4; \ | |
91 | mcpu=power3: -m620; \ | |
92 | mcpu=powerpc: -mppc; \ | |
93 | mcpu=rs64: -mppc; \ | |
94 | mcpu=603: -m603; \ | |
95 | mcpu=603e: -m603; \ | |
96 | mcpu=604: -m604; \ | |
97 | mcpu=604e: -m604; \ | |
98 | mcpu=620: -m620; \ | |
99 | mcpu=630: -m620; \ | |
100 | mcpu=970|mcpu=G5: -m970; \ | |
101 | !mcpu*: %(asm_default)} \ | |
102 | -many" | |
103 | ||
104 | #undef ASM_DEFAULT_SPEC | |
105 | #define ASM_DEFAULT_SPEC "-mpwr7" | |
106 | ||
107 | #undef TARGET_OS_CPP_BUILTINS | |
108 | #define TARGET_OS_CPP_BUILTINS() \ | |
109 | do \ | |
110 | { \ | |
111 | builtin_define ("_AIX43"); \ | |
112 | builtin_define ("_AIX51"); \ | |
113 | builtin_define ("_AIX52"); \ | |
114 | builtin_define ("_AIX53"); \ | |
115 | builtin_define ("_AIX61"); \ | |
116 | builtin_define ("_AIX71"); \ | |
117 | builtin_define ("_AIX72"); \ | |
118 | builtin_define ("_AIX73"); \ | |
119 | TARGET_OS_AIX_CPP_BUILTINS (); \ | |
120 | } \ | |
121 | while (0) | |
122 | ||
123 | #define CPP_SPEC32 "" | |
124 | #define CPP_SPEC64 "-D__64BIT__" | |
125 | #define CPP_SPEC_COMMON "%{posix: -D_POSIX_SOURCE} \ | |
126 | %{ansi: -D_ANSI_C_SOURCE} \ | |
127 | %{mpe: -I%R/usr/lpp/ppe.poe/include} \ | |
128 | %{pthread: -D_THREAD_SAFE}" | |
129 | ||
130 | /* The GNU C++ standard library requires that these macros be | |
131 | defined. Synchronize with libstdc++ os_defines.h. */ | |
132 | #define CPLUSPLUS_CPP_SPEC_COMMON \ | |
133 | "-D_ALL_SOURCE -D__COMPATMATH__ \ | |
134 | %{mpe: -I%R/usr/lpp/ppe.poe/include} \ | |
135 | %{pthread: -D_THREAD_SAFE}" | |
136 | ||
137 | #define RS6000_CPU(NAME, CPU, FLAGS) | |
138 | #include "rs6000-cpus.def" | |
139 | #undef RS6000_CPU | |
140 | ||
141 | #undef TARGET_DEFAULT | |
142 | #ifdef RS6000_BI_ARCH | |
469b655b | 143 | #define TARGET_DEFAULT (ISA_2_7_MASKS_SERVER | MASK_POWERPC64 | MASK_64BIT) |
39667263 | 144 | #else |
469b655b | 145 | #define TARGET_DEFAULT ISA_2_7_MASKS_SERVER |
39667263 DE |
146 | #endif |
147 | ||
148 | #undef PROCESSOR_DEFAULT | |
469b655b | 149 | #define PROCESSOR_DEFAULT PROCESSOR_POWER8 |
39667263 | 150 | #undef PROCESSOR_DEFAULT64 |
469b655b | 151 | #define PROCESSOR_DEFAULT64 PROCESSOR_POWER8 |
39667263 DE |
152 | |
153 | /* AIX 7.2 kernel and assembler have necessary support for Altivec and VSX. */ | |
154 | #undef OS_MISSING_ALTIVEC | |
155 | ||
156 | /* Define this macro as a C expression for the initializer of an | |
157 | array of string to tell the driver program which options are | |
158 | defaults for this target and thus do not need to be handled | |
159 | specially when using `MULTILIB_OPTIONS'. | |
160 | ||
161 | Do not define this macro if `MULTILIB_OPTIONS' is not defined in | |
162 | the target makefile fragment or if none of the options listed in | |
163 | `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */ | |
164 | ||
165 | #undef MULTILIB_DEFAULTS | |
166 | ||
167 | #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT) | |
168 | ||
169 | #define LIB_SPEC32 "%{!shared:%{g*:-lg}}" | |
170 | #define LIB_SPEC64 "" | |
171 | #define LIB_SPEC_COMMON "%{pg:-L%R/lib/profiled -L%R/usr/lib/profiled}\ | |
172 | %{p:-L%R/lib/profiled -L%R/usr/lib/profiled}\ | |
173 | %{fprofile-arcs|fprofile-generate*|coverage:-lpthreads}\ | |
174 | %{mpe:-L%R/usr/lpp/ppe.poe/lib -lmpi -lvtd}\ | |
175 | %{mlong-double-128:-lc128}\ | |
176 | %{pthread:-lpthreads} -lc" | |
177 | ||
178 | #define LINK_SPEC32 "%{!shared:%{g*: %(link_libg) }} -b32" | |
179 | #define LINK_SPEC64 "-b64" | |
180 | #define LINK_SPEC_COMMON "-bpT:0x10000000 -bpD:0x20000000 %{!r:-btextro}\ | |
181 | %{static:-bnso %(link_syscalls) } %{shared:-bM:SRE %{!e:-bnoentry}}\ | |
182 | %{mpe:-binitfini:poe_remote_main} " | |
183 | ||
184 | #undef STARTFILE_SPEC | |
185 | #if DEFAULT_ARCH64_P | |
186 | #define STARTFILE_SPEC "%{!shared:\ | |
187 | %{!maix32:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ | |
188 | %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ | |
189 | %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ | |
190 | %{!maix32:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ | |
191 | %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" | |
192 | #else | |
193 | #define STARTFILE_SPEC "%{!shared:\ | |
194 | %{maix64:%{pg:gcrt0_64%O%s;:%{p:mcrt0_64%O%s;:crt0_64%O%s}};:\ | |
195 | %{pthread:%{pg:gcrt0_r%O%s;:%{p:mcrt0_r%O%s;:crt0_r%O%s}};:\ | |
196 | %{pg:gcrt0%O%s;:%{p:mcrt0%O%s;:crt0%O%s}}}}}\ | |
197 | %{maix64:%{shared:crtcxa_64_s%O%s;:crtcxa_64%O%s} crtdbase_64%O%s;:\ | |
198 | %{shared:crtcxa_s%O%s;:crtcxa%O%s} crtdbase%O%s}" | |
199 | #endif | |
200 | ||
201 | ||
202 | #undef ASM_SPEC | |
203 | #undef CPP_SPEC | |
204 | #undef CPLUSPLUS_CPP_SPEC | |
205 | #undef LIB_SPEC | |
206 | #undef LINK_SPEC | |
207 | ||
208 | #if DEFAULT_ARCH64_P | |
209 | #define ASM_SPEC "%{maix32:%(asm_spec32);:%(asm_spec64)} %(asm_spec_common)" | |
210 | #define CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cpp_spec_common)" | |
211 | #define CPLUSPLUS_CPP_SPEC "%{maix32:%(cpp_spec32);:%(cpp_spec64)} %(cplusplus_cpp_spec_common)" | |
212 | #define LIB_SPEC "%{maix32:%(lib_spec32);:%(lib_spec64)} %(lib_spec_common)" | |
213 | #define LINK_SPEC "%{maix32:%(link_spec32);:%(link_spec64)} %(link_spec_common)" | |
214 | #else | |
215 | #define ASM_SPEC "%{maix64:%(asm_spec64);:%(asm_spec32)} %(asm_spec_common)" | |
216 | #define CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cpp_spec_common)" | |
217 | #define CPLUSPLUS_CPP_SPEC "%{maix64:%(cpp_spec64);:%(cpp_spec32)} %(cplusplus_cpp_spec_common)" | |
218 | #define LIB_SPEC "%{maix64:%(lib_spec64);:%(lib_spec32)} %(lib_spec_common)" | |
219 | #define LINK_SPEC "%{maix64:%(link_spec64);:%(link_spec32)} %(link_spec_common)" | |
220 | #endif | |
221 | ||
222 | #undef SUBTARGET_EXTRA_SPECS | |
223 | #define SUBTARGET_EXTRA_SPECS \ | |
224 | { "asm_spec_common", ASM_SPEC_COMMON }, \ | |
225 | { "asm_spec32", ASM_SPEC32 }, \ | |
226 | { "asm_spec64", ASM_SPEC64 }, \ | |
227 | { "cpp_spec_common", CPP_SPEC_COMMON }, \ | |
228 | { "cplusplus_cpp_spec_common", CPLUSPLUS_CPP_SPEC_COMMON }, \ | |
229 | { "cpp_spec32", CPP_SPEC32 }, \ | |
230 | { "cpp_spec64", CPP_SPEC64 }, \ | |
231 | { "lib_spec_common", LIB_SPEC_COMMON }, \ | |
232 | { "lib_spec32", LIB_SPEC32 }, \ | |
233 | { "lib_spec64", LIB_SPEC64 }, \ | |
234 | { "link_spec_common", LINK_SPEC_COMMON }, \ | |
235 | { "link_spec32", LINK_SPEC32 }, \ | |
236 | { "link_spec64", LINK_SPEC64 }, | |
237 | ||
238 | /* AIX V5 typedefs ptrdiff_t as "long" while earlier releases used "int". */ | |
239 | ||
240 | #undef PTRDIFF_TYPE | |
241 | #define PTRDIFF_TYPE "long int" | |
242 | ||
243 | /* Type used for wchar_t, as a string used in a declaration. */ | |
244 | #undef WCHAR_TYPE | |
245 | #define WCHAR_TYPE (!TARGET_64BIT ? "short unsigned int" : "unsigned int") | |
246 | ||
247 | /* Width of wchar_t in bits. */ | |
248 | #undef WCHAR_TYPE_SIZE | |
249 | #define WCHAR_TYPE_SIZE (!TARGET_64BIT ? 16 : 32) | |
250 | ||
251 | /* AIX 4.2 and above provides initialization and finalization function | |
252 | support from linker command line. */ | |
253 | #undef HAS_INIT_SECTION | |
254 | #define HAS_INIT_SECTION | |
255 | ||
256 | #undef LD_INIT_SWITCH | |
257 | #define LD_INIT_SWITCH "-binitfini" | |
258 | ||
259 | #ifndef _AIX52 | |
260 | extern long long int atoll(const char *); | |
261 | #endif | |
262 | ||
263 | /* This target uses the aix64.opt file. */ | |
264 | #define TARGET_USES_AIX64_OPT 1 | |
265 | ||
266 | /* Large TOC Support */ | |
267 | #ifdef HAVE_LD_LARGE_TOC | |
268 | #undef TARGET_CMODEL | |
269 | #define TARGET_CMODEL rs6000_current_cmodel | |
270 | #define SET_CMODEL(opt) rs6000_current_cmodel = opt | |
271 | #else | |
272 | #define SET_CMODEL(opt) do {} while (0) | |
273 | #endif | |
274 | ||
275 | /* This target defines SUPPORTS_WEAK and TARGET_ASM_NAMED_SECTION, | |
276 | but does not have crtbegin/end. */ | |
277 | ||
9cf3f026 | 278 | #define TARGET_AIX_VERSION 73 |
39667263 DE |
279 | |
280 | /* AIX 7.2 supports DWARF3+ debugging. */ | |
281 | #define DWARF2_DEBUGGING_INFO 1 | |
282 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
283 | #define DEBUG_INFO_SECTION "0x10000" | |
284 | #define DEBUG_LINE_SECTION "0x20000" | |
285 | #define DEBUG_PUBNAMES_SECTION "0x30000" | |
286 | #define DEBUG_PUBTYPES_SECTION "0x40000" | |
287 | #define DEBUG_ARANGES_SECTION "0x50000" | |
288 | #define DEBUG_ABBREV_SECTION "0x60000" | |
289 | #define DEBUG_STR_SECTION "0x70000" | |
290 | #define DEBUG_RANGES_SECTION "0x80000" | |
291 | #define DEBUG_LOC_SECTION "0x90000" | |
292 | #define DEBUG_FRAME_SECTION "0xA0000" | |
293 | #define DEBUG_MACINFO_SECTION "0xB0000" | |
294 | #define DEBUG_MACRO_SECTION "0xB0000" | |
295 |