1 /* Target definitions for GNU compiler for PowerPC running System V.4
2    Copyright (C) 1995-2019 Free Software Foundation, Inc.
3    Contributed by Cygnus Support.
4 
5    This file is part of GCC.
6 
7    GCC is free software; you can redistribute it and/or modify it
8    under the terms of the GNU General Public License as published
9    by the Free Software Foundation; either version 3, or (at your
10    option) any later version.
11 
12    GCC is distributed in the hope that it will be useful, but WITHOUT
13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
15    License for more details.
16 
17    Under Section 7 of GPL version 3, you are granted additional
18    permissions described in the GCC Runtime Library Exception, version
19    3.1, as published by the Free Software Foundation.
20 
21    You should have received a copy of the GNU General Public License and
22    a copy of the GCC Runtime Library Exception along with this program;
23    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
24    <http://www.gnu.org/licenses/>.  */
25 
26 #undef GNU_USER_TARGET_CRTI
27 #define GNU_USER_TARGET_CRTI "%{mnewlib:ecrti.o%s;:crti.o%s}"
28 #undef GNU_USER_TARGET_CRTN
29 #define GNU_USER_TARGET_CRTN "%{mnewlib:ecrtn.o%s;:crtn.o%s}"
30 
31 /* Yes!  We are ELF.  */
32 #define	TARGET_OBJECT_FORMAT OBJECT_ELF
33 
34 /* Default ABI to compile code for.  */
35 #define DEFAULT_ABI rs6000_current_abi
36 
37 /* Default ABI to use.  */
38 #define RS6000_ABI_NAME "sysv"
39 
40 /* Override rs6000.h definition.  */
41 #undef	ASM_DEFAULT_SPEC
42 #define	ASM_DEFAULT_SPEC "-mppc"
43 
44 #define	TARGET_TOC		(TARGET_64BIT				\
45 				 || (TARGET_MINIMAL_TOC			\
46 				     && flag_pic > 1)			\
47 				 || DEFAULT_ABI != ABI_V4)
48 
49 #define	TARGET_BITFIELD_TYPE	(! TARGET_NO_BITFIELD_TYPE)
50 #define	TARGET_BIG_ENDIAN	(! TARGET_LITTLE_ENDIAN)
51 #define	TARGET_PROTOTYPE	target_prototype
52 #define	TARGET_NO_PROTOTYPE	(! TARGET_PROTOTYPE)
53 #define	TARGET_NO_TOC		(! TARGET_TOC)
54 #define	TARGET_NO_EABI		(! TARGET_EABI)
55 #define	TARGET_REGNAMES		rs6000_regnames
56 
57 #ifdef HAVE_AS_REL16
58 #undef TARGET_SECURE_PLT
59 #define TARGET_SECURE_PLT	secure_plt
60 #endif
61 
62 #if HAVE_AS_PLTSEQ
63 #undef TARGET_PLTSEQ
64 #define TARGET_PLTSEQ rs6000_pltseq
65 #endif
66 
67 #define SDATA_DEFAULT_SIZE 8
68 
69 /* The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
70    get control in TARGET_OPTION_OVERRIDE.  */
71 
72 #define SUBTARGET_OVERRIDE_OPTIONS					\
73 do {									\
74   if (!global_options_set.x_g_switch_value)				\
75     g_switch_value = SDATA_DEFAULT_SIZE;				\
76 									\
77   if (rs6000_abi_name == NULL)						\
78     rs6000_abi_name = RS6000_ABI_NAME;					\
79 									\
80   if (!strcmp (rs6000_abi_name, "sysv"))				\
81     rs6000_current_abi = ABI_V4;					\
82   else if (!strcmp (rs6000_abi_name, "sysv-noeabi"))			\
83     {									\
84       rs6000_current_abi = ABI_V4;					\
85       rs6000_isa_flags &= ~ OPTION_MASK_EABI;				\
86     }									\
87   else if (!strcmp (rs6000_abi_name, "sysv-eabi")			\
88 	   || !strcmp (rs6000_abi_name, "eabi"))			\
89     {									\
90       rs6000_current_abi = ABI_V4;					\
91       rs6000_isa_flags |= OPTION_MASK_EABI;				\
92     }									\
93   else if (!strcmp (rs6000_abi_name, "aixdesc"))			\
94     rs6000_current_abi = ABI_AIX;					\
95   else if (!strcmp (rs6000_abi_name, "freebsd")				\
96 	   || !strcmp (rs6000_abi_name, "linux"))			\
97     {									\
98       if (TARGET_64BIT)							\
99 	rs6000_current_abi = ABI_AIX;					\
100       else								\
101 	rs6000_current_abi = ABI_V4;					\
102     }									\
103   else if (!strcmp (rs6000_abi_name, "netbsd"))				\
104     rs6000_current_abi = ABI_V4;					\
105   else if (!strcmp (rs6000_abi_name, "openbsd"))			\
106     rs6000_current_abi = ABI_V4;					\
107   else if (!strcmp (rs6000_abi_name, "i960-old"))			\
108     {									\
109       rs6000_current_abi = ABI_V4;					\
110       rs6000_isa_flags |= (OPTION_MASK_LITTLE_ENDIAN | OPTION_MASK_EABI); \
111       rs6000_isa_flags &= ~OPTION_MASK_STRICT_ALIGN;			\
112       TARGET_NO_BITFIELD_WORD = 1;					\
113     }									\
114   else									\
115     {									\
116       rs6000_current_abi = ABI_V4;					\
117       error ("bad value for %<%s-%s%>", "-mcall", rs6000_abi_name);	\
118     }									\
119 									\
120   if (rs6000_sdata_name)						\
121     {									\
122       if (!strcmp (rs6000_sdata_name, "none"))				\
123 	rs6000_sdata = SDATA_NONE;					\
124       else if (!strcmp (rs6000_sdata_name, "data"))			\
125 	rs6000_sdata = SDATA_DATA;					\
126       else if (!strcmp (rs6000_sdata_name, "default"))			\
127 	rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV;		\
128       else if (!strcmp (rs6000_sdata_name, "sysv"))			\
129 	rs6000_sdata = SDATA_SYSV;					\
130       else if (!strcmp (rs6000_sdata_name, "eabi"))			\
131 	rs6000_sdata = SDATA_EABI;					\
132       else								\
133 	error ("bad value for %<%s=%s%>", "-msdata", rs6000_sdata_name);\
134     }									\
135   else if (DEFAULT_ABI == ABI_V4)					\
136     {									\
137       rs6000_sdata = SDATA_DATA;					\
138       rs6000_sdata_name = "data";					\
139     }									\
140   else									\
141     {									\
142       rs6000_sdata = SDATA_NONE;					\
143       rs6000_sdata_name = "none";					\
144     }									\
145 									\
146   if (TARGET_RELOCATABLE &&						\
147       (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV))	\
148     {									\
149       rs6000_sdata = SDATA_DATA;					\
150       error ("%qs and %<%s=%s%> are incompatible", rs6000_sdata_name,	\
151 	     "-mrelocatable", "-msdata");				\
152     }									\
153 									\
154   else if (flag_pic && DEFAULT_ABI == ABI_V4				\
155 	   && (rs6000_sdata == SDATA_EABI				\
156 	       || rs6000_sdata == SDATA_SYSV))				\
157     {									\
158       rs6000_sdata = SDATA_DATA;					\
159       error ("%<-f%s%> and %<%s=%s%> are incompatible",			\
160 	     (flag_pic > 1) ? "PIC" : "pic",				\
161 	     "-msdata", rs6000_sdata_name);				\
162     }									\
163 									\
164   if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4)		\
165       || (rs6000_sdata == SDATA_EABI && !TARGET_EABI))			\
166     {									\
167       rs6000_sdata = SDATA_NONE;					\
168       error ("%<%s=%s%> and %<%s-%s%> are incompatible",		\
169 	     "-msdata", rs6000_sdata_name, "-mcall", rs6000_abi_name);	\
170     }									\
171 									\
172   targetm.have_srodata_section = rs6000_sdata == SDATA_EABI;		\
173 									\
174   if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC)			\
175     {									\
176       rs6000_isa_flags |= OPTION_MASK_MINIMAL_TOC;			\
177       error ("%qs and %qs are incompatible", "-mrelocatable",		\
178 	     "-mno-minimal-toc");					\
179     }									\
180 									\
181   if (TARGET_RELOCATABLE && rs6000_current_abi != ABI_V4)		\
182     {									\
183       rs6000_isa_flags &= ~OPTION_MASK_RELOCATABLE;			\
184       error ("%qs and %<%s-%s%> are incompatible",			\
185 	     "-mrelocatable", "-mcall", rs6000_abi_name);		\
186     }									\
187 									\
188   if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi != ABI_V4)	\
189     {									\
190       flag_pic = 0;							\
191       error ("%qs and %<%s-%s%> are incompatible",			\
192 	     "-fPIC", "-mcall", rs6000_abi_name);			\
193     }									\
194 									\
195   if (TARGET_SECURE_PLT != secure_plt)					\
196     {									\
197       error ("%qs not supported by your assembler", "-msecure-plt");	\
198     }									\
199 									\
200   if (TARGET_PLTSEQ != rs6000_pltseq					\
201       && global_options_set.x_rs6000_pltseq)				\
202     {									\
203       error ("%qs not supported by your assembler", "-mpltseq");	\
204     }									\
205 									\
206   if (DEFAULT_ABI == ABI_V4 && TARGET_PLTSEQ && !TARGET_SECURE_PLT)	\
207     {									\
208       if (global_options_set.x_rs6000_pltseq)				\
209 	{								\
210 	  if (global_options_set.x_secure_plt)				\
211 	    error ("%qs and %qs are incompatible",			\
212 		   "-mpltseq", "-mbss-plt");				\
213 	  else								\
214 	    secure_plt = true;						\
215 	}								\
216       if (!TARGET_SECURE_PLT)						\
217 	rs6000_pltseq = false;						\
218     }									\
219 									\
220   if (flag_pic > 1 && DEFAULT_ABI == ABI_V4)				\
221     {									\
222       /* Note: flag_pic should not change any option flags that would	\
223 	 be invalid with or pessimise -fno-PIC code.  LTO turns off	\
224 	 flag_pic when linking/recompiling a fixed position executable. \
225 	 However, if the objects were originally compiled with -fPIC,	\
226 	 then other target options forced on here by -fPIC are restored \
227 	 when recompiling those objects without -fPIC.  In particular	\
228 	 TARGET_RELOCATABLE must not be enabled here by flag_pic.  */	\
229       rs6000_isa_flags |= OPTION_MASK_MINIMAL_TOC;			\
230       TARGET_NO_FP_IN_TOC = 1;						\
231     }									\
232 									\
233   if (TARGET_RELOCATABLE)						\
234     {									\
235       if (!flag_pic)							\
236 	flag_pic = 2;							\
237       TARGET_NO_FP_IN_TOC = 1;						\
238     }									\
239 } while (0)
240 
241 #ifndef RS6000_BI_ARCH
242 # define SUBSUBTARGET_OVERRIDE_OPTIONS					\
243 do {									\
244   if ((TARGET_DEFAULT ^ rs6000_isa_flags) & OPTION_MASK_64BIT)		\
245     error ("%<-m%s%> not supported in this configuration",		\
246 	   (rs6000_isa_flags & OPTION_MASK_64BIT) ? "64" : "32");	\
247 } while (0)
248 #endif
249 
250 /* Override rs6000.h definition.  */
251 #undef	TARGET_DEFAULT
252 #define	TARGET_DEFAULT 0
253 
254 /* Override rs6000.h definition.  */
255 #undef	PROCESSOR_DEFAULT
256 #define	PROCESSOR_DEFAULT PROCESSOR_PPC750
257 
258 #define FIXED_R2 1
259 /* System V.4 uses register 13 as a pointer to the small data area,
260    so it is not available to the normal user.  */
261 #define FIXED_R13 1
262 
263 /* Override default big endianism definitions in rs6000.h.  */
264 #undef	BYTES_BIG_ENDIAN
265 #undef	WORDS_BIG_ENDIAN
266 #define	BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
267 #define	WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
268 
269 /* Put jump tables in read-only memory, rather than in .text.  */
270 #define JUMP_TABLES_IN_TEXT_SECTION 0
271 
272 /* Prefix and suffix to use to saving floating point.  */
273 #define	SAVE_FP_PREFIX "_savefpr_"
274 #define SAVE_FP_SUFFIX ""
275 
276 /* Prefix and suffix to use to restoring floating point.  */
277 #define	RESTORE_FP_PREFIX "_restfpr_"
278 #define RESTORE_FP_SUFFIX ""
279 
280 /* Type used for size_t, as a string used in a declaration.  */
281 #undef  SIZE_TYPE
282 #define SIZE_TYPE "unsigned int"
283 
284 /* Type used for ptrdiff_t, as a string used in a declaration.  */
285 #define PTRDIFF_TYPE "int"
286 
287 #undef	WCHAR_TYPE
288 #define WCHAR_TYPE "long int"
289 
290 #undef	WCHAR_TYPE_SIZE
291 #define WCHAR_TYPE_SIZE 32
292 
293 /* Make int foo : 8 not cause structures to be aligned to an int boundary.  */
294 /* Override elfos.h definition.  */
295 #undef	PCC_BITFIELD_TYPE_MATTERS
296 #define	PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
297 
298 #undef	BITFIELD_NBYTES_LIMITED
299 #define	BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
300 
301 /* Define this macro to be the value 1 if instructions will fail to
302    work if given data not on the nominal alignment.  If instructions
303    will merely go slower in that case, define this macro as 0.  */
304 #undef	STRICT_ALIGNMENT
305 #define	STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
306 
307 /* Define this macro if you wish to preserve a certain alignment for
308    the stack pointer, greater than what the hardware enforces.  The
309    definition is a C expression for the desired alignment (measured
310    in bits).  This macro must evaluate to a value equal to or larger
311    than STACK_BOUNDARY.
312    For the SYSV ABI and variants the alignment of the stack pointer
313    is usually controlled manually in rs6000.c. However, to maintain
314    alignment across alloca () in all circumstances,
315    PREFERRED_STACK_BOUNDARY needs to be set as well.
316    This has the additional advantage of allowing a bigger maximum
317    alignment of user objects on the stack.  */
318 
319 #undef PREFERRED_STACK_BOUNDARY
320 #define PREFERRED_STACK_BOUNDARY 128
321 
322 /* Real stack boundary as mandated by the appropriate ABI.  */
323 #define ABI_STACK_BOUNDARY \
324   ((TARGET_EABI && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI) ? 64 : 128)
325 
326 /* An expression for the alignment of a structure field FIELD if the
327    alignment computed in the usual way is COMPUTED.  */
328 #define ADJUST_FIELD_ALIGN(FIELD, TYPE, COMPUTED)			      \
329 	(rs6000_special_adjust_field_align_p ((TYPE), (COMPUTED))	      \
330 	 ? 128 : COMPUTED)
331 
332 #undef  BIGGEST_FIELD_ALIGNMENT
333 
334 /* Use ELF style section commands.  */
335 
336 #define	TEXT_SECTION_ASM_OP	"\t.section\t\".text\""
337 
338 #define	DATA_SECTION_ASM_OP	"\t.section\t\".data\""
339 
340 #define	BSS_SECTION_ASM_OP	"\t.section\t\".bss\""
341 
342 /* Override elfos.h definition.  */
343 #undef	INIT_SECTION_ASM_OP
344 #define	INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
345 
346 /* Override elfos.h definition.  */
347 #undef	FINI_SECTION_ASM_OP
348 #define	FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
349 
350 #define	TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
351 
352 /* Put PC relative got entries in .got2.  */
353 #define	MINIMAL_TOC_SECTION_ASM_OP \
354   (flag_pic ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
355 
356 #define	SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
357 #define	SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
358 #define	SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
359 
360 /* Override default elf definitions.  */
361 #define TARGET_ASM_INIT_SECTIONS rs6000_elf_asm_init_sections
362 #undef  TARGET_ASM_RELOC_RW_MASK
363 #define TARGET_ASM_RELOC_RW_MASK rs6000_elf_reloc_rw_mask
364 #undef	TARGET_ASM_SELECT_RTX_SECTION
365 #define	TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
366 
367 /* Return nonzero if this entry is to be written into the constant pool
368    in a special way.  We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
369    containing one of them.  If -mfp-in-toc (the default), we also do
370    this for floating-point constants.  We actually can only do this
371    if the FP formats of the target and host machines are the same, but
372    we can't check that since not every file that uses these target macros
373    includes real.h.
374 
375    Unlike AIX, we don't key off of -mminimal-toc, but instead do not
376    allow floating point constants in the TOC if -mrelocatable.  */
377 
378 #undef	ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
379 #define	ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE)			\
380   (TARGET_TOC								\
381    && (SYMBOL_REF_P (X)							\
382        || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS	\
383 	   && SYMBOL_REF_P (XEXP (XEXP (X, 0), 0)))			\
384        || GET_CODE (X) == LABEL_REF					\
385        || (CONST_INT_P (X)						\
386 	   && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode))	\
387        || (!TARGET_NO_FP_IN_TOC						\
388 	   && CONST_DOUBLE_P (X)					\
389 	   && SCALAR_FLOAT_MODE_P (GET_MODE (X))			\
390 	   && BITS_PER_WORD == HOST_BITS_PER_INT)))
391 
392 /* These macros generate the special .type and .size directives which
393    are used to set the corresponding fields of the linker symbol table
394    entries in an ELF object file under SVR4.  These macros also output
395    the starting labels for the relevant functions/objects.  */
396 
397 /* Write the extra assembler code needed to declare a function properly.
398    Some svr4 assemblers need to also have something extra said about the
399    function's return value.  We allow for that here.  */
400 
401 /* Override elfos.h definition.  */
402 #undef	ASM_DECLARE_FUNCTION_NAME
403 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)			\
404   rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
405 
406 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
407    flag.  The LOCAL_LABEL_PREFIX variable is used by dbxelf.h.  */
408 
409 #define	LOCAL_LABEL_PREFIX "."
410 #define	USER_LABEL_PREFIX ""
411 
412 #define	ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX)	\
413   asm_fprintf (FILE, "%L%s", PREFIX)
414 
415 /* Globalizing directive for a label.  */
416 #define GLOBAL_ASM_OP "\t.globl "
417 
418 /* This says how to output assembler code to declare an
419    uninitialized internal linkage data object.  Under SVR4,
420    the linker seems to want the alignment of data objects
421    to depend on their types.  We do exactly that here.  */
422 
423 #define	LOCAL_ASM_OP	"\t.local\t"
424 
425 #define	LCOMM_ASM_OP	"\t.lcomm\t"
426 
427 /* Describe how to emit uninitialized local items.  */
428 #define	ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN)	\
429 do {									\
430   if ((DECL) && rs6000_elf_in_small_data_p (DECL))			\
431     {									\
432       switch_to_section (sbss_section);					\
433       ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT));	\
434       ASM_OUTPUT_LABEL (FILE, NAME);					\
435       ASM_OUTPUT_SKIP (FILE, SIZE);					\
436       if (!flag_inhibit_size_directive && (SIZE) > 0)			\
437 	ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE);			\
438     }									\
439   else									\
440     {									\
441       fprintf (FILE, "%s", LCOMM_ASM_OP);				\
442       assemble_name ((FILE), (NAME));					\
443       fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",		\
444 	       (SIZE), (ALIGN) / BITS_PER_UNIT);			\
445     }									\
446   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");			\
447 } while (0)
448 
449 /* Describe how to emit uninitialized external linkage items.  */
450 #define	ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)		\
451 do {									\
452   ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN);	\
453 } while (0)
454 
455 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
456 /* To support -falign-* switches we need to use .p2align so
457    that alignment directives in code sections will be padded
458    with no-op instructions, rather than zeroes.  */
459 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP)			\
460   if ((LOG) != 0)							\
461     {									\
462       if ((MAX_SKIP) == 0)						\
463 	fprintf ((FILE), "\t.p2align %d\n", (LOG));			\
464       else								\
465 	fprintf ((FILE), "\t.p2align %d,,%d\n",	(LOG), (MAX_SKIP));	\
466     }
467 #endif
468 
469 /* This is how to output code to push a register on the stack.
470    It need not be very fast code.
471 
472    On the rs6000, we must keep the backchain up to date.  In order
473    to simplify things, always allocate 16 bytes for a push (System V
474    wants to keep stack aligned to a 16 byte boundary).  */
475 
476 #define	ASM_OUTPUT_REG_PUSH(FILE, REGNO)				\
477 do {									\
478   if (DEFAULT_ABI == ABI_V4)						\
479     asm_fprintf (FILE,							\
480 		 "\tstwu %s,-16(%s)\n\tstw %s,12(%s)\n",	\
481 		 reg_names[1], reg_names[1], reg_names[REGNO],		\
482 		 reg_names[1]);						\
483 } while (0)
484 
485 /* This is how to output an insn to pop a register from the stack.
486    It need not be very fast code.  */
487 
488 #define	ASM_OUTPUT_REG_POP(FILE, REGNO)					\
489 do {									\
490   if (DEFAULT_ABI == ABI_V4)						\
491     asm_fprintf (FILE,							\
492 		 "\tlwz %s,12(%s)\n\taddi %s,%s,16\n",	\
493 		 reg_names[REGNO], reg_names[1], reg_names[1],		\
494 		 reg_names[1]);						\
495 } while (0)
496 
497 extern int fixuplabelno;
498 
499 /* Handle constructors specially for -mrelocatable.  */
500 #define TARGET_ASM_CONSTRUCTOR  rs6000_elf_asm_out_constructor
501 #define TARGET_ASM_DESTRUCTOR   rs6000_elf_asm_out_destructor
502 
503 /* This is the end of what might become sysv4.h.  */
504 
505 /* Use DWARF 2 debugging information by default.  */
506 #undef  PREFERRED_DEBUGGING_TYPE
507 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
508 
509 /* Historically we have also supported stabs debugging.  */
510 #define DBX_DEBUGGING_INFO 1
511 
512 #define TARGET_ENCODE_SECTION_INFO  rs6000_elf_encode_section_info
513 #define TARGET_IN_SMALL_DATA_P  rs6000_elf_in_small_data_p
514 
515 /* The ELF version doesn't encode [DS] or whatever at the end of symbols.  */
516 
517 #define	RS6000_OUTPUT_BASENAME(FILE, NAME)	\
518     assemble_name (FILE, NAME)
519 
520 /* We have to output the stabs for the function name *first*, before
521    outputting its label.  */
522 
523 #define	DBX_FUNCTION_FIRST
524 
525 /* This is the end of what might become sysv4dbx.h.  */
526 
527 #define TARGET_OS_SYSV_CPP_BUILTINS()		\
528   do						\
529     {						\
530       if (rs6000_isa_flags_explicit		\
531 	  & OPTION_MASK_RELOCATABLE)		\
532 	builtin_define ("_RELOCATABLE");	\
533     }						\
534   while (0)
535 
536 #ifndef	TARGET_OS_CPP_BUILTINS
537 #define TARGET_OS_CPP_BUILTINS()		\
538   do						\
539     {						\
540       builtin_define_std ("PPC");		\
541       builtin_define_std ("unix");		\
542       builtin_define ("__svr4__");		\
543       builtin_assert ("system=unix");		\
544       builtin_assert ("system=svr4");		\
545       builtin_assert ("cpu=powerpc");		\
546       builtin_assert ("machine=powerpc");	\
547       TARGET_OS_SYSV_CPP_BUILTINS ();		\
548     }						\
549   while (0)
550 #endif
551 
552 /* Select one of BIG_OPT, LITTLE_OPT or DEFAULT_OPT depending
553    on various -mbig, -mlittle and -mcall- options.  */
554 #define ENDIAN_SELECT(BIG_OPT, LITTLE_OPT, DEFAULT_OPT)	\
555 "%{mlittle|mlittle-endian:"	LITTLE_OPT ";"	\
556   "mbig|mbig-endian:"		BIG_OPT    ";"	\
557   "mcall-i960-old:"		LITTLE_OPT ";"	\
558   ":"				DEFAULT_OPT "}"
559 
560 #define DEFAULT_ASM_ENDIAN " -mbig"
561 
562 #undef	ASM_SPEC
563 #define	ASM_SPEC "%(asm_cpu) \
564 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
565 %{mrelocatable} %{mrelocatable-lib} %{" FPIE_OR_FPIC_SPEC ":-K PIC} \
566 %{memb|msdata=eabi: -memb}" \
567 ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
568 
569 #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
570 #define CC1_SECURE_PLT_DEFAULT_SPEC ""
571 #endif
572 #ifndef LINK_SECURE_PLT_DEFAULT_SPEC
573 #define LINK_SECURE_PLT_DEFAULT_SPEC ""
574 #endif
575 
576 /* Pass -G xxx to the compiler.  */
577 #undef CC1_SPEC
578 #define	CC1_SPEC "%{G*} %(cc1_cpu)" \
579 "%{meabi: %{!mcall-*: -mcall-sysv }} \
580 %{!meabi: %{!mno-eabi: \
581     %{mrelocatable: -meabi } \
582     %{mcall-freebsd: -mno-eabi } \
583     %{mcall-i960-old: -meabi } \
584     %{mcall-linux: -mno-eabi } \
585     %{mcall-netbsd: -mno-eabi } \
586     %{mcall-openbsd: -mno-eabi }}} \
587 %{msdata: -msdata=default} \
588 %{mno-sdata: -msdata=none} \
589 %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}}" \
590 GNU_USER_TARGET_CC1_SPEC
591 
592 /* Default starting address if specified.  */
593 #define LINK_START_SPEC "\
594 %{mads         : %(link_start_ads)         ; \
595   myellowknife : %(link_start_yellowknife) ; \
596   mmvme        : %(link_start_mvme)        ; \
597   msim         : %(link_start_sim)         ; \
598   mcall-freebsd: %(link_start_freebsd)     ; \
599   mcall-linux  : %(link_start_linux)       ; \
600   mcall-netbsd : %(link_start_netbsd)      ; \
601   mcall-openbsd: %(link_start_openbsd)     ; \
602                : %(link_start_default)     }"
603 
604 #define LINK_START_DEFAULT_SPEC ""
605 #define LINK_SECURE_PLT_SPEC LINK_SECURE_PLT_DEFAULT_SPEC
606 
607 #undef	LINK_SPEC
608 #define	LINK_SPEC "\
609 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
610 %{R*} \
611 %(link_shlib) \
612 %{!T*: %(link_start) } \
613 %{!static: %{!mbss-plt: %(link_secure_plt)}} \
614 %(link_os)"
615 
616 /* Shared libraries are not default.  */
617 #define LINK_SHLIB_SPEC "\
618 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
619 %{static: } \
620 %{shared:-G -dy -z text } \
621 %{symbolic:-Bsymbolic -G -dy -z text }"
622 
623 /* Any specific OS flags.  */
624 #define LINK_OS_SPEC "\
625 %{mads         : %(link_os_ads)         ; \
626   myellowknife : %(link_os_yellowknife) ; \
627   mmvme        : %(link_os_mvme)        ; \
628   msim         : %(link_os_sim)         ; \
629   mcall-freebsd: %(link_os_freebsd)     ; \
630   mcall-linux  : %(link_os_linux)       ; \
631   mcall-netbsd : %(link_os_netbsd)      ; \
632   mcall-openbsd: %(link_os_openbsd)     ; \
633                : %(link_os_default)     }"
634 
635 #define LINK_OS_DEFAULT_SPEC ""
636 
637 /* Override rs6000.h definition.  */
638 #undef	CPP_SPEC
639 #define	CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
640 %{mads         : %(cpp_os_ads)         ; \
641   myellowknife : %(cpp_os_yellowknife) ; \
642   mmvme        : %(cpp_os_mvme)        ; \
643   msim         : %(cpp_os_sim)         ; \
644   mcall-freebsd: %(cpp_os_freebsd)     ; \
645   mcall-linux  : %(cpp_os_linux)       ; \
646   mcall-netbsd : %(cpp_os_netbsd)      ; \
647   mcall-openbsd: %(cpp_os_openbsd)     ; \
648                : %(cpp_os_default)     }"
649 
650 #define	CPP_OS_DEFAULT_SPEC ""
651 
652 #undef	STARTFILE_SPEC
653 #define	STARTFILE_SPEC "\
654 %{mads         : %(startfile_ads)         ; \
655   myellowknife : %(startfile_yellowknife) ; \
656   mmvme        : %(startfile_mvme)        ; \
657   msim         : %(startfile_sim)         ; \
658   mcall-freebsd: %(startfile_freebsd)     ; \
659   mcall-linux  : %(startfile_linux)       ; \
660   mcall-netbsd : %(startfile_netbsd)      ; \
661   mcall-openbsd: %(startfile_openbsd)     ; \
662                : %(startfile_default)     }"
663 
664 #define	STARTFILE_DEFAULT_SPEC "ecrti.o%s crtbegin.o%s"
665 
666 #undef	LIB_SPEC
667 #define	LIB_SPEC "\
668 %{mads         : %(lib_ads)         ; \
669   myellowknife : %(lib_yellowknife) ; \
670   mmvme        : %(lib_mvme)        ; \
671   msim         : %(lib_sim)         ; \
672   mcall-freebsd: %(lib_freebsd)     ; \
673   mcall-linux  : %(lib_linux)       ; \
674   mcall-netbsd : %(lib_netbsd)      ; \
675   mcall-openbsd: %(lib_openbsd)     ; \
676                : %(lib_default)     }"
677 
678 #define LIB_DEFAULT_SPEC "-lc"
679 
680 #undef	ENDFILE_SPEC
681 #define	ENDFILE_SPEC "\
682 %{mads         : %(endfile_ads)         ; \
683   myellowknife : %(endfile_yellowknife) ; \
684   mmvme        : %(endfile_mvme)        ; \
685   msim         : %(endfile_sim)         ; \
686   mcall-freebsd: %(endfile_freebsd)     ; \
687   mcall-linux  : %(endfile_linux)       ; \
688   mcall-netbsd : %(endfile_netbsd)      ; \
689   mcall-openbsd: %(endfile_openbsd)     ; \
690                : %(crtsavres_default) %(endfile_default)     }"
691 
692 #define CRTSAVRES_DEFAULT_SPEC ""
693 
694 #define	ENDFILE_DEFAULT_SPEC "crtend.o%s ecrtn.o%s"
695 
696 /* Motorola ADS support.  */
697 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
698 
699 #define	STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
700 
701 #define	ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
702 
703 #define LINK_START_ADS_SPEC "-T ads.ld%s"
704 
705 #define LINK_OS_ADS_SPEC ""
706 
707 #define CPP_OS_ADS_SPEC ""
708 
709 /* Motorola Yellowknife support.  */
710 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
711 
712 #define	STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
713 
714 #define	ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
715 
716 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
717 
718 #define LINK_OS_YELLOWKNIFE_SPEC ""
719 
720 #define CPP_OS_YELLOWKNIFE_SPEC ""
721 
722 /* Motorola MVME support.  */
723 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
724 
725 #define	STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
726 
727 #define	ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
728 
729 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
730 
731 #define LINK_OS_MVME_SPEC ""
732 
733 #define CPP_OS_MVME_SPEC ""
734 
735 /* PowerPC simulator based on netbsd system calls support.  */
736 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
737 
738 #define	STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
739 
740 #define	ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
741 
742 #define LINK_START_SIM_SPEC ""
743 
744 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
745 
746 #define CPP_OS_SIM_SPEC ""
747 
748 /* FreeBSD support.  */
749 
750 #define CPP_OS_FREEBSD_SPEC	"\
751   -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
752   -Acpu=powerpc -Amachine=powerpc"
753 
754 #define	STARTFILE_FREEBSD_SPEC	FBSD_STARTFILE_SPEC
755 #define ENDFILE_FREEBSD_SPEC	FBSD_ENDFILE_SPEC
756 #define LIB_FREEBSD_SPEC	FBSD_LIB_SPEC
757 #define LINK_START_FREEBSD_SPEC	""
758 
759 #define LINK_OS_FREEBSD_SPEC "\
760   %{p:%nconsider using '-pg' instead of '-p' with gprof(1)} \
761   %{v:-V} \
762   %{assert*} %{R*} %{rpath*} %{defsym*} \
763   %{shared:-Bshareable %{h*} %{soname*}} \
764   %{!shared: \
765     %{!static: \
766       %{rdynamic: -export-dynamic} \
767       -dynamic-linker %(fbsd_dynamic_linker) } \
768     %{static:-Bstatic}} \
769   %{symbolic:-Bsymbolic}"
770 
771 /* GNU/Linux support.  */
772 #define LIB_LINUX_SPEC \
773   "%{mnewlib: --start-group -llinux -lc --end-group; \
774      :" GNU_USER_TARGET_LIB_SPEC "}"
775 
776 #define	STARTFILE_LINUX_SPEC GNU_USER_TARGET_STARTFILE_SPEC
777 
778 #define ENDFILE_LINUX_SPEC GNU_USER_TARGET_ENDFILE_SPEC
779 
780 #define LINK_START_LINUX_SPEC ""
781 
782 #define MUSL_DYNAMIC_LINKER_E ENDIAN_SELECT("","le","")
783 
784 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
785 #undef MUSL_DYNAMIC_LINKER
786 #define MUSL_DYNAMIC_LINKER \
787   "/lib/ld-musl-powerpc" MUSL_DYNAMIC_LINKER_E "%{msoft-float:-sf}.so.1"
788 
789 #ifndef GNU_USER_DYNAMIC_LINKER
790 #define GNU_USER_DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
791 #endif
792 
793 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
794   %{rdynamic:-export-dynamic} \
795   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
796 
797 #define CPP_OS_LINUX_SPEC "%{pthread:-D_REENTRANT}"
798 
799 /* NetBSD support.  */
800 #define LIB_NETBSD_SPEC "\
801 -lc"
802 
803 #define	STARTFILE_NETBSD_SPEC "\
804 ncrti.o%s crt0.o%s \
805 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
806 
807 #define ENDFILE_NETBSD_SPEC "\
808 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
809 ncrtn.o%s"
810 
811 #define LINK_START_NETBSD_SPEC "\
812 "
813 
814 #define LINK_OS_NETBSD_SPEC "\
815 %{!shared: %{!static: \
816   %{rdynamic:-export-dynamic} \
817   -dynamic-linker /usr/libexec/ld.elf_so}}"
818 
819 #define CPP_OS_NETBSD_SPEC "\
820 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
821 
822 /* OpenBSD support.  */
823 #ifndef	LIB_OPENBSD_SPEC
824 #define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}"
825 #endif
826 
827 #ifndef	STARTFILE_OPENBSD_SPEC
828 #define	STARTFILE_OPENBSD_SPEC "\
829 %{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
830 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
831 #endif
832 
833 #ifndef	ENDFILE_OPENBSD_SPEC
834 #define	ENDFILE_OPENBSD_SPEC "\
835 %{!shared:crtend.o%s} %{shared:crtendS.o%s}"
836 #endif
837 
838 #ifndef LINK_START_OPENBSD_SPEC
839 #define LINK_START_OPENBSD_SPEC "-Ttext 0x400074"
840 #endif
841 
842 #ifndef LINK_OS_OPENBSD_SPEC
843 #define LINK_OS_OPENBSD_SPEC ""
844 #endif
845 
846 #ifndef CPP_OS_OPENBSD_SPEC
847 #define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
848 #endif
849 
850 /* Define any extra SPECS that the compiler needs to generate.  */
851 /* Override rs6000.h definition.  */
852 #undef	SUBTARGET_EXTRA_SPECS
853 #define	SUBTARGET_EXTRA_SPECS						\
854   { "crtsavres_default",	CRTSAVRES_DEFAULT_SPEC },		\
855   { "lib_ads",			LIB_ADS_SPEC },				\
856   { "lib_yellowknife",		LIB_YELLOWKNIFE_SPEC },			\
857   { "lib_mvme",			LIB_MVME_SPEC },			\
858   { "lib_sim",			LIB_SIM_SPEC },				\
859   { "lib_freebsd",		LIB_FREEBSD_SPEC },			\
860   { "lib_linux",		LIB_LINUX_SPEC },			\
861   { "lib_netbsd",		LIB_NETBSD_SPEC },			\
862   { "lib_openbsd",		LIB_OPENBSD_SPEC },			\
863   { "lib_default",		LIB_DEFAULT_SPEC },			\
864   { "startfile_ads",		STARTFILE_ADS_SPEC },			\
865   { "startfile_yellowknife",	STARTFILE_YELLOWKNIFE_SPEC },		\
866   { "startfile_mvme",		STARTFILE_MVME_SPEC },			\
867   { "startfile_sim",		STARTFILE_SIM_SPEC },			\
868   { "startfile_freebsd",	STARTFILE_FREEBSD_SPEC },		\
869   { "startfile_linux",		STARTFILE_LINUX_SPEC },			\
870   { "startfile_netbsd",		STARTFILE_NETBSD_SPEC },		\
871   { "startfile_openbsd",	STARTFILE_OPENBSD_SPEC },		\
872   { "startfile_default",	STARTFILE_DEFAULT_SPEC },		\
873   { "endfile_ads",		ENDFILE_ADS_SPEC },			\
874   { "endfile_yellowknife",	ENDFILE_YELLOWKNIFE_SPEC },		\
875   { "endfile_mvme",		ENDFILE_MVME_SPEC },			\
876   { "endfile_sim",		ENDFILE_SIM_SPEC },			\
877   { "endfile_freebsd",		ENDFILE_FREEBSD_SPEC },			\
878   { "endfile_linux",		ENDFILE_LINUX_SPEC },			\
879   { "endfile_netbsd",		ENDFILE_NETBSD_SPEC },			\
880   { "endfile_openbsd",		ENDFILE_OPENBSD_SPEC },			\
881   { "endfile_default",		ENDFILE_DEFAULT_SPEC },			\
882   { "link_shlib",		LINK_SHLIB_SPEC },			\
883   { "link_start",		LINK_START_SPEC },			\
884   { "link_start_ads",		LINK_START_ADS_SPEC },			\
885   { "link_start_yellowknife",	LINK_START_YELLOWKNIFE_SPEC },		\
886   { "link_start_mvme",		LINK_START_MVME_SPEC },			\
887   { "link_start_sim",		LINK_START_SIM_SPEC },			\
888   { "link_start_freebsd",	LINK_START_FREEBSD_SPEC },		\
889   { "link_start_linux",		LINK_START_LINUX_SPEC },		\
890   { "link_start_netbsd",	LINK_START_NETBSD_SPEC },		\
891   { "link_start_openbsd",	LINK_START_OPENBSD_SPEC },		\
892   { "link_start_default",	LINK_START_DEFAULT_SPEC },		\
893   { "link_os",			LINK_OS_SPEC },				\
894   { "link_os_ads",		LINK_OS_ADS_SPEC },			\
895   { "link_os_yellowknife",	LINK_OS_YELLOWKNIFE_SPEC },		\
896   { "link_os_mvme",		LINK_OS_MVME_SPEC },			\
897   { "link_os_sim",		LINK_OS_SIM_SPEC },			\
898   { "link_os_freebsd",		LINK_OS_FREEBSD_SPEC },			\
899   { "link_os_linux",		LINK_OS_LINUX_SPEC },			\
900   { "link_os_netbsd",		LINK_OS_NETBSD_SPEC },			\
901   { "link_os_openbsd",		LINK_OS_OPENBSD_SPEC },			\
902   { "link_os_default",		LINK_OS_DEFAULT_SPEC },			\
903   { "cc1_secure_plt_default",	CC1_SECURE_PLT_DEFAULT_SPEC },		\
904   { "link_secure_plt",		LINK_SECURE_PLT_SPEC },			\
905   { "cpp_os_ads",		CPP_OS_ADS_SPEC },			\
906   { "cpp_os_yellowknife",	CPP_OS_YELLOWKNIFE_SPEC },		\
907   { "cpp_os_mvme",		CPP_OS_MVME_SPEC },			\
908   { "cpp_os_sim",		CPP_OS_SIM_SPEC },			\
909   { "cpp_os_freebsd",		CPP_OS_FREEBSD_SPEC },			\
910   { "cpp_os_linux",		CPP_OS_LINUX_SPEC },			\
911   { "cpp_os_netbsd",		CPP_OS_NETBSD_SPEC },			\
912   { "cpp_os_openbsd",		CPP_OS_OPENBSD_SPEC },			\
913   { "cpp_os_default",		CPP_OS_DEFAULT_SPEC },			\
914   { "fbsd_dynamic_linker",	FBSD_DYNAMIC_LINKER },			\
915   SUBSUBTARGET_EXTRA_SPECS
916 
917 #define	SUBSUBTARGET_EXTRA_SPECS
918 
919 /* Define this macro as a C expression for the initializer of an
920    array of string to tell the driver program which options are
921    defaults for this target and thus do not need to be handled
922    specially when using `MULTILIB_OPTIONS'.
923 
924    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
925    the target makefile fragment or if none of the options listed in
926    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
927 
928 #define	MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
929 
930 /* Define this macro if the code for function profiling should come
931    before the function prologue.  Normally, the profiling code comes
932    after.  */
933 #define PROFILE_BEFORE_PROLOGUE 1
934 
935 /* Function name to call to do profiling.  */
936 #define RS6000_MCOUNT "_mcount"
937 
938 /* Select a format to encode pointers in exception handling data.  CODE
939    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
940    true if the symbol may be affected by dynamic relocations.  */
941 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL)			\
942   (flag_pic								\
943    ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel		\
944       | DW_EH_PE_sdata4)						\
945    : DW_EH_PE_absptr)
946 
947 #define DOUBLE_INT_ASM_OP "\t.quad\t"
948 
949 /* Generate entries in .fixup for relocatable addresses.  */
950 #define RELOCATABLE_NEEDS_FIXUP 1
951 
952 #define TARGET_ASM_FILE_END rs6000_elf_file_end
953 
954 #undef TARGET_ASAN_SHADOW_OFFSET
955 #define TARGET_ASAN_SHADOW_OFFSET rs6000_asan_shadow_offset
956 
957 /* This target uses the sysv4.opt file.  */
958 #define TARGET_USES_SYSV4_OPT 1
959 
960 /* Include order changes for musl, same as in generic linux.h.  */
961 #if DEFAULT_LIBC == LIBC_MUSL
962 #define INCLUDE_DEFAULTS_MUSL_GPP			\
963     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,		\
964       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },		\
965     { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,		\
966       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },		\
967     { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,	\
968       GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
969 
970 #ifdef LOCAL_INCLUDE_DIR
971 #define INCLUDE_DEFAULTS_MUSL_LOCAL			\
972     { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },		\
973     { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
974 #else
975 #define INCLUDE_DEFAULTS_MUSL_LOCAL
976 #endif
977 
978 #ifdef PREFIX_INCLUDE_DIR
979 #define INCLUDE_DEFAULTS_MUSL_PREFIX			\
980     { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
981 #else
982 #define INCLUDE_DEFAULTS_MUSL_PREFIX
983 #endif
984 
985 #ifdef CROSS_INCLUDE_DIR
986 #define INCLUDE_DEFAULTS_MUSL_CROSS			\
987     { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
988 #else
989 #define INCLUDE_DEFAULTS_MUSL_CROSS
990 #endif
991 
992 #ifdef TOOL_INCLUDE_DIR
993 #define INCLUDE_DEFAULTS_MUSL_TOOL			\
994     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
995 #else
996 #define INCLUDE_DEFAULTS_MUSL_TOOL
997 #endif
998 
999 #ifdef NATIVE_SYSTEM_HEADER_DIR
1000 #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
1001     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
1002     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
1003 #else
1004 #define INCLUDE_DEFAULTS_MUSL_NATIVE
1005 #endif
1006 
1007 #if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
1008 # undef INCLUDE_DEFAULTS_MUSL_LOCAL
1009 # define INCLUDE_DEFAULTS_MUSL_LOCAL
1010 # undef INCLUDE_DEFAULTS_MUSL_NATIVE
1011 # define INCLUDE_DEFAULTS_MUSL_NATIVE
1012 #else
1013 # undef INCLUDE_DEFAULTS_MUSL_CROSS
1014 # define INCLUDE_DEFAULTS_MUSL_CROSS
1015 #endif
1016 
1017 #undef INCLUDE_DEFAULTS
1018 #define INCLUDE_DEFAULTS				\
1019   {							\
1020     INCLUDE_DEFAULTS_MUSL_GPP				\
1021     INCLUDE_DEFAULTS_MUSL_LOCAL				\
1022     INCLUDE_DEFAULTS_MUSL_PREFIX			\
1023     INCLUDE_DEFAULTS_MUSL_CROSS				\
1024     INCLUDE_DEFAULTS_MUSL_TOOL				\
1025     INCLUDE_DEFAULTS_MUSL_NATIVE			\
1026     { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
1027     { 0, 0, 0, 0, 0, 0 }				\
1028   }
1029 #endif
1030