1 /* Definitions of target machine for GNU compiler. Iris version 6.
2 Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
21 /* Default to -mabi=n32 and -mips3. */
22 #define MIPS_ISA_DEFAULT 3
23 #define MIPS_ABI_DEFAULT ABI_N32
24 #define MULTILIB_DEFAULTS { "mabi=n32" }
26 #include "mips/iris5.h"
27 #include "mips/abi64.h"
29 /* Irix 6 uses DWARF. */
30 #define DWARF_DEBUGGING_INFO
31 #define DWARF_VERSION 2
32 #define MIPS_DEBUGGING_INFO
33 #undef PREFERRED_DEBUGGING_TYPE
34 #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
37 #define MACHINE_TYPE "SGI running IRIX 6.x"
39 /* The Irix 6.0.1 assembler doesn't like labels in the text section, so
40 just avoid emitting them. */
41 #define ASM_IDENTIFY_GCC
42 #define ASM_IDENTIFY_LANGUAGE
44 /* Irix 5 stuff that we don't need for Irix 6. */
45 /* ??? We do need this for the -mabi=32 switch though. */
46 #undef ASM_OUTPUT_UNDEF_FUNCTION
47 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
48 #undef ASM_DECLARE_FUNCTION_SIZE
50 /* Stuff we need for Irix 6 that isn't in Irix 5. */
52 /* The SGI assembler doesn't like labels before the .ent, so we must output
53 the .ent and function name here, which is the normal place for it. */
55 #undef ASM_DECLARE_FUNCTION_NAME
56 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
58 fputs ("\t.ent\t", STREAM); \
59 assemble_name (STREAM, NAME); \
60 fputs ("\n", STREAM); \
61 assemble_name (STREAM, NAME); \
62 fputs (":\n", STREAM); \
65 /* Likewise, the SGI assembler doesn't like labels after the .end, so we
66 must output the .end here. */
67 #define ASM_DECLARE_FUNCTION_SIZE(STREAM, NAME, DECL) \
69 fputs ("\t.end\t", STREAM); \
70 assemble_name (STREAM, NAME); \
71 fputs ("\n", STREAM); \
74 /* Tell function_prologue in mips.c that we have already output the .ent/.end
76 #define FUNCTION_NAME_ALREADY_DECLARED
78 #undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */
80 /* This is how to equate one symbol to another symbol. The syntax used is
81 `SYM1=SYM2'. Note that this is different from the way equates are done
82 with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */
84 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
85 do { fprintf ((FILE), "\t"); \
86 assemble_name (FILE, LABEL1); \
87 fprintf (FILE, " = "); \
88 assemble_name (FILE, LABEL2); \
89 fprintf (FILE, "\n"); \
92 #define POPSECTION_ASM_OP ".popsection"
94 #define DEBUG_SECTION ".debug_info,0x7000001e,0,0,1"
95 #define LINE_SECTION ".debug_line,0x7000001e,0,0,1"
96 #define SFNAMES_SECTION ".debug_sfnames,0x7000001e,0,0,1"
97 #define SRCINFO_SECTION ".debug_srcinfo,0x7000001e,0,0,1"
98 #define MACINFO_SECTION ".debug_macinfo,0x7000001e,0,0,1"
99 #define PUBNAMES_SECTION ".debug_pubnames,0x7000001e,0,0,1"
100 #define ARANGES_SECTION ".debug_aranges,0x7000001e,0,0,1"
101 #define FRAME_SECTION ".debug_frame,0x7000001e,0x08000000,0,1"
102 #define ABBREV_SECTION ".debug_abbrev,0x7000001e,0,0,1"
104 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
105 on the mipsX option. */
107 #if ((TARGET_CPU_DEFAULT | TARGET_DEFAULT) & MASK_GAS) != 0
111 %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
112 %{pipe: %e-pipe is not supported.} \
114 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \
116 %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
117 %{g} %{g0} %{g1} %{g2} %{g3} \
118 %{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \
119 %{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
120 %{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
121 %{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3} \
123 %{mabi=32:-32}%{mabi=o32:-32}%{mabi=n32:-n32}%{mabi=64:-64}%{mabi=n64:-64} \
128 /* Must pass -g0 to the assembler, otherwise it may overwrite our
129 debug info with its own debug info. */
130 /* Must pass -show instead of -v. */
131 /* Must pass -G 0 to the assembler, otherwise we may get warnings about
135 %{!.s:-nocpp} %{.s: %{cpp} %{nocpp}} \
136 %{pipe: %e-pipe is not supported.} \
138 %{G*} %{EB} %{EL} %{v:-show} \
139 %{mips1} %{mips2} %{mips3} %{mips4} \
140 %{noasmopt:-O0} %{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
141 -g0 -G 0 %{membedded-pic} \
142 %{mabi=32:-32}%{mabi=o32:-32}%{mabi=n32:-n32}%{mabi=64:-64}%{mabi=n64:-64} \
147 /* Stuff for constructors. Start here. */
149 /* The assembler now accepts .section pseudo-ops, but it does not allow
150 one to change the section in the middle of a function. crtstuff relies
151 on this hack, and thus crtstuff won't work here. So, we do init and
152 fini sections exactly the same way as they are done for Irix 5, and
153 we ifdef out the ASM_OUTPUT_{CON,DE}STRUCTOR macros below. */
155 #define CONST_SECTION_ASM_OP_32 "\t.rdata"
156 #define CONST_SECTION_ASM_OP_64 ".section\t.rodata"
157 #define CTORS_SECTION_ASM_OP ".section\t.ctors,1,2,0,4"
158 #define DTORS_SECTION_ASM_OP ".section\t.dtors,1,2,0,4"
160 /* This is the pseudo-op used to generate a 32-bit word of data with a
161 specific value in some section. This is the same for all known svr4
164 #define INT_ASM_OP ".word"
166 /* A default list of other sections which we might be "in" at any given
167 time. For targets that use additional sections (e.g. .tdesc) you
168 should override this definition in the target-specific file which
169 includes this file. */
171 #undef EXTRA_SECTIONS
172 #define EXTRA_SECTIONS in_sdata, in_rdata, in_const, in_ctors, in_dtors
174 /* A default list of extra section function definitions. For targets
175 that use additional sections (e.g. .tdesc) you should override this
176 definition in the target-specific file which includes this file. */
178 /* ??? rdata_section is now same as svr4 const_section. */
180 #undef EXTRA_SECTION_FUNCTIONS
181 #define EXTRA_SECTION_FUNCTIONS \
185 if (in_section != in_sdata) \
187 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
188 in_section = in_sdata; \
195 if (in_section != in_rdata) \
197 if (mips_abi != ABI_32) \
198 fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_64); \
200 fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP_32); \
201 in_section = in_rdata; \
204 CTORS_SECTION_FUNCTION \
205 DTORS_SECTION_FUNCTION
207 #define CTORS_SECTION_FUNCTION \
211 if (in_section != in_ctors) \
213 fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
214 in_section = in_ctors; \
218 #define DTORS_SECTION_FUNCTION \
222 if (in_section != in_dtors) \
224 fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
225 in_section = in_dtors; \
231 /* A C statement (sans semicolon) to output an element in the table of
232 global constructors. */
233 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
236 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
237 assemble_name (FILE, NAME); \
238 fprintf (FILE, "\n"); \
241 /* A C statement (sans semicolon) to output an element in the table of
242 global destructors. */
243 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
246 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
247 assemble_name (FILE, NAME); \
248 fprintf (FILE, "\n"); \
253 /* Stuff for constructors. End here. */
255 /* ??? Perhaps just include svr4.h in this file? */
257 /* ??? SGI assembler may core dump when compiling with -g.
258 Sometimes as succeeds, but then we get a linker error. (cmds.c in 072.sc)
259 Getting rid of .file solves both problems. */
260 #undef ASM_OUTPUT_FILENAME
261 #define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
264 fprintf (STREAM, "\t#.file\t%d ", NUM_SOURCE_FILENAMES); \
265 output_quoted_string (STREAM, NAME); \
266 fputs ("\n", STREAM); \
270 /* ??? SGI assembler gives warning whenever .lcomm is used. */
271 #undef ASM_OUTPUT_LOCAL
272 #define ASM_OUTPUT_ALIGNED_LOCAL(STREAM, NAME, SIZE, ALIGN) \
275 if (mips_abi != ABI_32) \
277 fputs ("\t.section\t.bss\n", STREAM); \
278 ASM_DECLARE_OBJECT_NAME (STREAM, NAME, 0); \
279 ASM_OUTPUT_ALIGN (STREAM, floor_log2 (ALIGN / BITS_PER_UNIT)); \
280 ASM_OUTPUT_SKIP (STREAM, SIZE); \
281 fprintf (STREAM, "\t%s\n", POPSECTION_ASM_OP); \
284 mips_declare_object (STREAM, NAME, "\n\t.lcomm\t", ",%u\n", (SIZE)); \
288 #undef LOCAL_LABEL_PREFIX
289 #define LOCAL_LABEL_PREFIX (mips_abi == ABI_32 ? "$" : ".")
291 /* Profiling is supported via libprof1.a not -lc_p as in Irix 3. */
292 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
293 on the mipsX option. */
294 #undef STARTFILE_SPEC
295 #undef STARTFILE_SPEC
296 #define STARTFILE_SPEC \
297 "%{mabi=32:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}} \
298 %{mabi=n32:%{pg:/usr/lib32/gcrt1.o%s}%{!pg:%{p:/usr/lib32/mcrt1.o%s /usr/lib32/libprof1.a%s}%{!p:/usr/lib32/crt1.o%s}}} \
299 %{mabi=64:%{pg:/usr/lib64/gcrt1.o}%{!pg:%{p:/usr/lib64/mcrt1.o /usr/lib64/libprof1.a}%{!p:/usr/lib64/crt1.o}}} \
300 %{!mabi=32:%{!mabi=n32:%{!mabi=64:%{pg:/usr/lib32/gcrt1.o%s}%{!pg:%{p:/usr/lib32/mcrt1.o%s /usr/lib32/libprof1.a%s}%{!p:/usr/lib32/crt1.o%s}}}}}"
303 #define LIB_SPEC "%{p:libprof1.a%s}%{pg:libprof1.a%s} -lc"
305 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
306 on the mipsX option. */
308 #define ENDFILE_SPEC \
309 "%{mabi=32:crtn.o%s}%{mabi=n32:/usr/lib32/crtn.o%s}\
310 %{mabi=64:/usr/lib64/crtn.o}\
311 %{!mabi=32:%{!mabi=n32:%{!mabi=64:/usr/lib32/crtn.o%s}}}"
313 /* ??? If no mabi=X option give, but a mipsX option is, then should depend
314 on the mipsX option. */
315 /* ??? We use the -woff 84 option to disable the warning about linking
316 with libraries that are unnecessary. This message is currently more of
317 a hassle than a benefit, because we get two warnings for libgcc.a everytime
318 we link. If we added the proper -dont_warn_unused/-warn_unused options
319 around libgcc.a, then we can take out the -woff 84 option. */
322 %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
323 %{bestGnum} %{shared} %{non_shared} \
324 %{call_shared} %{no_archive} %{exact_version} \
325 %{!shared: %{!non_shared: %{!call_shared: -call_shared -no_unresolved}}} \
327 -_SYSTYPE_SVR4 -woff 84 \
328 %{mabi=32: -32}%{mabi=n32: -n32}%{mabi=64: -64} \
329 %{!mabi=32:%{!mabi=n32:%{!mabi=64: -n32}}}"