1 /* svr4.h -- operating system specific defines to be used when
2 targeting GCC for some generic System V Release 4 system.
3 Copyright (C) 1991 Free Software Foundation, Inc.
5 Written by Ron Guilmette (rfg@ncd.com).
7 This file is part of GNU CC.
9 GNU CC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU CC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU CC; see the file COPYING. If not, write to
21 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
23 To use this file, make up a file with a name like:
27 where ????? is replaced by the name of the basic hardware that you
28 are targeting for. Then, in the file ?????svr4.h, put something
34 followed by any really system-specific defines (or overrides of
35 defines) which you find that you need. For example, CPP_PREDEFINES
36 is defined here with only the defined -Dunix and -DSVR4. You should
37 probably override that in your target-specific ?????svr4.h file
38 with a set of defines that includes these, but also contains an
39 appropriate define for the type of hardware that you are targeting.
42 /* For the sake of libgcc2.c, indicate target supports atexit. */
45 /* Cpp, assembler, linker, library, and startfile spec's. */
47 /* This defines which switch letters take arguments. On svr4, most of
48 the normal cases (defined in gcc.c) apply, and we also have -h* and
49 -z* options (for the linker). Note however that there is no such
50 thing as a -T option for svr4. */
52 #define SWITCH_TAKES_ARG(CHAR) \
65 /* This defines which multi-letter switches take arguments. On svr4,
66 there are no such switches except those implemented by GCC itself. */
68 #define WORD_SWITCH_TAKES_ARG(STR) \
69 (!strcmp (STR, "include") || !strcmp (STR, "imacros") \
70 || !strcmp (STR, "aux-info"))
72 /* You should redefine CPP_PREDEFINES in any file which includes this one.
73 The definition should be appropriate for the type of target system
74 involved, and it should include any -A (assertion) options which are
75 appropriate for the given target system. */
78 /* Provide an ASM_SPEC appropriate for svr4. Here we try to support as
79 many of the specialized svr4 assembler options as seems reasonable,
80 given that there are certain options which we can't (or shouldn't)
81 support directly due to the fact that they conflict with other options
82 for other svr4 tools (e.g. ld) or with other options for GCC itself.
83 For example, we don't support the -o (output file) or -R (remove
84 input file) options because GCC already handles these things. We
85 also don't support the -m (run m4) option for the assembler because
86 that conflicts with the -m (produce load map) option of the svr4
87 linker. We do however allow passing arbitrary options to the svr4
88 assembler via the -Wa, option.
90 Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,*
96 "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
98 /* svr4 assemblers need the `-' (indicating input from stdin) to come after
99 the -o option (and its argument) for some reason. If we try to put it
100 before the -o option, the assembler will try to read the file named as
101 the output file in the -o option as an input file (after it has already
102 written some stuff to it) and the binary stuff contained therein will
103 cause totally confuse the assembler, resulting in many spurious error
106 #undef ASM_FINAL_SPEC
107 #define ASM_FINAL_SPEC "%{pipe:-}"
109 /* Under svr4, the normal location of the various *crt*.o files is the
110 /usr/ccs/lib directory. */
112 #undef MD_STARTFILE_PREFIX
113 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
115 /* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default
116 standard C library (unless we are building a shared library) followed by
117 our own magical crtend.o file (see crtstuff.c) which provides part of
118 the support for getting C++ file-scope static object constructed before
119 entering `main', followed by the normal svr3/svr4 "finalizer" file,
120 which is either `gcrtn.o' or `crtn.o'. */
124 "%{!shared:%{!symbolic:-lc}} \
126 %{!shared:%{!symbolic:%{pg:gcrtn.o}%{!pg:crtn.o%s}}}"
128 /* Provide a LINK_SPEC appropriate for svr4. Here we provide support
129 for the special GCC options -static, -shared, and -symbolic which
130 allow us to link things in one of these three modes by applying the
131 appropriate combinations of options at link-time. We also provide
132 support here for as many of the other svr4 linker options as seems
133 reasonable, given that some of them conflict with options for other
134 svr4 tools (e.g. the assembler). In particular, we do support the
135 -h*, -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*,
136 -l*, -o*, -r, -s, -u*, and -L* options are directly supported
137 by gcc.c itself. We don't directly support the -m (generate load
138 map) option because that conflicts with the -m (run m4) option of
139 the svr4 assembler. We also don't directly support the svr4 linker's
140 -I* or -M* options because these conflict with existing GCC options.
141 We do however allow passing arbitrary options to the svr4 linker
142 via the -Wl, option. We don't support the svr4 linker's -a option
143 at all because it is totally useless and because it conflicts with
146 Note that gcc doesn't allow a space to follow -Y in a -YP,* option.
148 When the -G link option is used (-shared and -symbolic) a final link is
152 #define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
154 %{static:-dn -Bstatic} \
156 %{symbolic:-Bsymbolic -G -dy} \
159 %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
160 %{!p:-Y P,/usr/ccs/lib:/usr/lib}} \
163 /* Gcc automatically adds in one of the files /usr/ccs/lib/values-Xc.o,
164 /usr/ccs/lib/values-Xa.o, or /usr/ccs/lib/values-Xt.o for each final
165 link step (depending upon the other gcc options selected, such as
166 -traditional and -ansi). These files each contain one (initialized)
167 copy of a special variable called `_lib_version'. Each one of these
168 files has `_lib_version' initialized to a different (enum) value.
169 The SVR4 library routines query the value of `_lib_version' at run
170 to decide how they should behave. Specifically, they decide (based
171 upon the value of `_lib_version') if they will act in a strictly ANSI
172 conforming manner or not.
175 #undef STARTFILE_SPEC
176 #define STARTFILE_SPEC "%{!shared: \
178 %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
179 %{pg:gcrti.o%s}%{!pg:crti.o%s} \
180 %{ansi:values-Xc.o%s} \
182 %{traditional:values-Xt.o%s} \
183 %{!traditional:values-Xa.o%s}}}} crtbegin.o%s"
185 /* Attach a special .ident directive to the end of the file to identify
186 the version of GCC which compiled this code. The format of the
187 .ident string is patterned after the ones produced by native svr4
190 #define ASM_FILE_END(FILE) \
192 fprintf ((FILE), "\t.ident\t\"GCC: (GNU) %s\"\n", \
196 /* Allow #sccs in preprocessor. */
198 #define SCCS_DIRECTIVE
200 /* Output #ident as a .ident. */
202 #define ASM_OUTPUT_IDENT(FILE, NAME) \
203 fprintf (FILE, "\t.ident \"%s\"\n", NAME);
205 /* Use periods rather than dollar signs in special g++ assembler names. */
207 #define NO_DOLLAR_IN_LABEL
209 /* Writing `int' for a bitfield forces int alignment for the structure. */
211 #define PCC_BITFIELD_TYPE_MATTERS 1
213 /* Implicit library calls should use memcpy, not bcopy, etc. */
215 #define TARGET_MEM_FUNCTIONS
217 /* System V Release 4 uses DWARF debugging info. */
219 #define DWARF_DEBUGGING_INFO
221 /* The numbers used to denote specific machine registers in the System V
222 Release 4 DWARF debugging information are quite likely to be totally
223 different from the numbers used in BSD stabs debugging information
224 for the same kind of target machine. Thus, we undefine the macro
225 DBX_REGISTER_NUMBER here as an extra inducement to get people to
226 provide proper machine-specific definitions of DBX_REGISTER_NUMBER
227 (which is also used to provide DWARF registers numbers in dwarfout.c)
228 in their tm.h files which include this file. */
230 #undef DBX_REGISTER_NUMBER
232 /* Define the actual types of some ANSI-mandated types. (These
233 definitions should work for most SVR4 systems). */
236 #define SIZE_TYPE "unsigned int"
239 #define PTRDIFF_TYPE "int"
242 #define WCHAR_TYPE "long int"
244 #undef WCHAR_TYPE_SIZE
245 #define WCHAR_TYPE_SIZE BITS_PER_WORD
247 /* This causes trouble, because it requires the host machine
248 to support ANSI C. */
249 /* #define MULTIBYTE_CHARS */
252 #define ASM_BYTE_OP "\t.byte"
254 /* This is how to begin an assembly language file. Most svr4 assemblers want
255 at least a .file directive to come first, and some want to see a .version
256 directive come right after that. Here we just establish a default
257 which generates only the .file directive. If you need a .version
258 directive for any specific target, you should override this definition
259 in the target-specific file which includes this one. */
261 #undef ASM_FILE_START
262 #define ASM_FILE_START(FILE) \
263 output_file_directive ((FILE), main_input_filename)
265 /* This is how to allocate empty space in some section. The .zero
266 pseudo-op is used for this on most svr4 assemblers. */
268 #define SKIP_ASM_OP ".zero"
270 #undef ASM_OUTPUT_SKIP
271 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
272 fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE))
274 /* This is how to output a reference to a user-level label named NAME.
275 `assemble_name' uses this.
277 For System V Release 4 the convention is *not* to prepend a leading
278 underscore onto user-level symbol names. */
280 #undef ASM_OUTPUT_LABELREF
281 #define ASM_OUTPUT_LABELREF(FILE,NAME) fprintf (FILE, "%s", NAME)
283 /* This is how to output an internal numbered label where
284 PREFIX is the class of label and NUM is the number within the class.
286 For most svr4 systems, the convention is that any symbol which begins
287 with a period is not put into the linker symbol table by the assembler. */
289 #undef ASM_OUTPUT_INTERNAL_LABEL
290 #define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
292 fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \
295 /* This is how to store into the string LABEL
296 the symbol_ref name of an internal numbered label where
297 PREFIX is the class of label and NUM is the number within the class.
298 This is suitable for output with `assemble_name'.
300 For most svr4 systems, the convention is that any symbol which begins
301 with a period is not put into the linker symbol table by the assembler. */
303 #undef ASM_GENERATE_INTERNAL_LABEL
304 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
306 sprintf (LABEL, "*.%s%d", PREFIX, NUM); \
309 /* The standard SVR4 assembler seems to require that certain builtin
310 library routines (e.g. .udiv) be explicitly declared as .globl
311 in each assembly file where they are referenced. */
313 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
314 ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
316 /* This says how to output assembler code to declare an
317 uninitialized external linkage data object. Under SVR4,
318 the linker seems to want the alignment of data objects
319 to depend on their types. We do exactly that here. */
321 #define COMMON_ASM_OP ".comm"
323 #undef ASM_OUTPUT_ALIGNED_COMMON
324 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
326 fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \
327 assemble_name ((FILE), (NAME)); \
328 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
331 /* This says how to output assembler code to declare an
332 uninitialized internal linkage data object. Under SVR4,
333 the linker seems to want the alignment of data objects
334 to depend on their types. We do exactly that here. */
336 #define LOCAL_ASM_OP ".local"
338 #undef ASM_OUTPUT_ALIGNED_LOCAL
339 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
341 fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
342 assemble_name ((FILE), (NAME)); \
343 fprintf ((FILE), "\n"); \
344 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
347 /* This is the pseudo-op used to generate a 32-bit word of data with a
348 specific value in some section. This is the same for all known svr4
351 #define INT_ASM_OP ".long"
353 /* This is the pseudo-op used to generate a contiguous sequence of byte
354 values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
355 AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
357 #undef ASCII_DATA_ASM_OP
358 #define ASCII_DATA_ASM_OP ".ascii"
360 /* Support const sections and the ctors and dtors sections for g++.
361 Note that there appears to be two different ways to support const
362 sections at the moment. You can either #define the symbol
363 READONLY_DATA_SECTION (giving it some code which switches to the
364 readonly data section) or else you can #define the symbols
365 EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
366 SELECT_RTX_SECTION. We do both here just to be on the safe side. */
368 #define USE_CONST_SECTION 1
370 #define CONST_SECTION_ASM_OP ".section\t.rodata"
371 #define CTORS_SECTION_ASM_OP ".section\t.ctors,\"a\",@progbits"
372 #define DTORS_SECTION_ASM_OP ".section\t.dtors,\"a\",@progbits"
374 /* On svr4, we *do* have support for the .init section, and we can put
375 stuff in there to be executed before `main'. We let crtstuff.c and
376 other files know this by defining the following symbol. The definition
377 says how to change sections to the .init section. This is the same
378 for all know svr4 assemblers. */
380 #define INIT_SECTION_ASM_OP ".section\t.init"
382 /* A default list of other sections which we might be "in" at any given
383 time. For targets that use additional sections (e.g. .tdesc) you
384 should override this definition in the target-specific file which
385 includes this file. */
387 #undef EXTRA_SECTIONS
388 #define EXTRA_SECTIONS in_const, in_ctors, in_dtors
390 /* A default list of extra section function definitions. For targets
391 that use additional sections (e.g. .tdesc) you should override this
392 definition in the target-specific file which includes this file. */
394 #undef EXTRA_SECTION_FUNCTIONS
395 #define EXTRA_SECTION_FUNCTIONS \
396 CONST_SECTION_FUNCTION \
397 CTORS_SECTION_FUNCTION \
398 DTORS_SECTION_FUNCTION
400 #define READONLY_DATA_SECTION() const_section ()
402 extern void text_section();
404 #define CONST_SECTION_FUNCTION \
408 if (!USE_CONST_SECTION) \
410 else if (in_section != in_const) \
412 fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
413 in_section = in_const; \
417 #define CTORS_SECTION_FUNCTION \
421 if (in_section != in_ctors) \
423 fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
424 in_section = in_ctors; \
428 #define DTORS_SECTION_FUNCTION \
432 if (in_section != in_dtors) \
434 fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
435 in_section = in_dtors; \
439 /* A C statement (sans semicolon) to output an element in the table of
440 global constructors. */
441 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
444 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
445 assemble_name (FILE, NAME); \
446 fprintf (FILE, "\n"); \
449 /* A C statement (sans semicolon) to output an element in the table of
450 global destructors. */
451 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
454 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
455 assemble_name (FILE, NAME); \
456 fprintf (FILE, "\n"); \
459 /* A C statement or statements to switch to the appropriate
460 section for output of DECL. DECL is either a `VAR_DECL' node
461 or a constant of some sort. RELOC indicates whether forming
462 the initial value of DECL requires link-time relocations. */
464 #define SELECT_SECTION(DECL,RELOC) \
466 if (TREE_CODE (DECL) == STRING_CST) \
468 if (! flag_writable_strings) \
473 else if (TREE_CODE (DECL) == VAR_DECL) \
475 if ((flag_pic && RELOC) \
476 || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
485 /* A C statement or statements to switch to the appropriate
486 section for output of RTX in mode MODE. RTX is some kind
487 of constant in RTL. The argument MODE is redundant except
488 in the case of a `const_int' rtx. Currently, these always
489 go into the const section. */
491 #undef SELECT_RTX_SECTION
492 #define SELECT_RTX_SECTION(MODE,RTX) const_section()
494 /* Define the strings used for the special svr4 .type and .size directives.
495 These strings generally do not vary from one system running svr4 to
496 another, but if a given system (e.g. m88k running svr) needs to use
497 different pseudo-op names for these, they may be overridden in the
498 file which includes this one. */
500 #define TYPE_ASM_OP ".type"
501 #define SIZE_ASM_OP ".size"
503 /* The following macro defines the format used to output the second
504 operand of the .type assembler directive. Different svr4 assemblers
505 expect various different forms for this operand. The one given here
506 is just a default. You may need to override it in your machine-
507 specific tm.h file (depending upon the particulars of your assembler). */
509 #define TYPE_OPERAND_FMT "@%s"
511 /* Write the extra assembler code needed to declare a function's result.
512 Most svr4 assemblers don't require any special declaration of the
513 result value, but there are exceptions. */
515 #ifndef ASM_DECLARE_RESULT
516 #define ASM_DECLARE_RESULT(FILE, RESULT)
519 /* These macros generate the special .type and .size directives which
520 are used to set the corresponding fields of the linker symbol table
521 entries in an ELF object file under SVR4. These macros also output
522 the starting labels for the relevant functions/objects. */
524 /* Write the extra assembler code needed to declare a function properly.
525 Some svr4 assemblers need to also have something extra said about the
526 function's return value. We allow for that here. */
528 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
530 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
531 assemble_name (FILE, NAME); \
533 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
535 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
536 ASM_OUTPUT_LABEL(FILE, NAME); \
539 /* Write the extra assembler code needed to declare an object properly. */
541 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
543 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
544 assemble_name (FILE, NAME); \
546 fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
548 if (!flag_inhibit_size_directive) \
550 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
551 assemble_name (FILE, NAME); \
552 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (decl))); \
554 ASM_OUTPUT_LABEL(FILE, NAME); \
557 /* This is how to declare the size of a function. */
559 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
561 if (!flag_inhibit_size_directive) \
564 static int labelno; \
566 ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
567 ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
568 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
569 assemble_name (FILE, (FNAME)); \
570 fprintf (FILE, ","); \
571 assemble_name (FILE, label); \
572 fprintf (FILE, "-"); \
573 ASM_OUTPUT_LABELREF (FILE, (FNAME)); \
578 /* A table of bytes codes used by the ASM_OUTPUT_ASCII and
579 ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
580 corresponds to a particular byte value [0..255]. For any
581 given byte value, if the value in the corresponding table
582 position is zero, the given character can be output directly.
583 If the table value is 1, the byte must be output as a \ooo
584 octal escape. If the tables value is anything else, then the
585 byte value should be output as a \ followed by the value
586 in the table. Note that we can use standard UN*X escape
587 sequences for many control characters, but we don't use
588 \a to represent BEL because some svr4 assemblers (e.g. on
589 the i386) don't know about that. */
592 "\1\1\1\1\1\1\1\1btnvfr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
593 \0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
594 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
595 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
596 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
597 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
598 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
599 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
601 /* Some svr4 assemblers have a limit on the number of characters which
602 can appear in the operand of a .string directive. If your assembler
603 has such a limitation, you should define STRING_LIMIT to reflect that
604 limit. Note that at least some svr4 assemblers have a limit on the
605 actual number of bytes in the double-quoted string, and that they
606 count each character in an escape sequence as one byte. Thus, an
607 escape sequence like \377 would count as four bytes.
609 If your target assembler doesn't support the .string directive, you
610 should define this to zero.
613 #define STRING_LIMIT ((unsigned) 256)
615 #define STRING_ASM_OP ".string"
617 /* The routine used to output NUL terminated strings. We use a special
618 version of this for most svr4 targets because doing so makes the
619 generated assembly code more compact (and thus faster to assemble)
620 as well as more readable, especially for targets like the i386
621 (where the only alternative is to output character sequences as
622 comma separated lists of numbers). */
624 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \
627 register unsigned char *_limited_str = (unsigned char *) (STR); \
628 register unsigned ch; \
629 fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \
630 for (; ch = *_limited_str; _limited_str++) \
632 register int escape; \
633 switch (escape = ESCAPES[ch]) \
639 fprintf ((FILE), "\\%03o", ch); \
642 putc ('\\', (FILE)); \
643 putc (escape, (FILE)); \
647 fprintf ((FILE), "\"\n"); \
651 /* The routine used to output sequences of byte values. We use a special
652 version of this for most svr4 targets because doing so makes the
653 generated assembly code more compact (and thus faster to assemble)
654 as well as more readable. Note that if we find subparts of the
655 character sequence which end with NUL (and which are shorter than
656 STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
658 #undef ASM_OUTPUT_ASCII
659 #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
662 register unsigned char *_ascii_bytes = (unsigned char *) (STR); \
663 register unsigned char *limit = _ascii_bytes + (LENGTH); \
664 register unsigned bytes_in_chunk = 0; \
665 for (; _ascii_bytes < limit; _ascii_bytes++) \
667 register unsigned char *p; \
668 if (bytes_in_chunk >= 60) \
670 fprintf ((FILE), "\"\n"); \
671 bytes_in_chunk = 0; \
673 for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
675 if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
677 if (bytes_in_chunk > 0) \
679 fprintf ((FILE), "\"\n"); \
680 bytes_in_chunk = 0; \
682 ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
687 register int escape; \
688 register unsigned ch; \
689 if (bytes_in_chunk == 0) \
690 fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \
691 switch (escape = ESCAPES[ch = *_ascii_bytes]) \
698 fprintf ((FILE), "\\%03o", ch); \
699 bytes_in_chunk += 4; \
702 putc ('\\', (FILE)); \
703 putc (escape, (FILE)); \
704 bytes_in_chunk += 2; \
709 if (bytes_in_chunk > 0) \
710 fprintf ((FILE), "\"\n"); \