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 /* Define a symbol indicating that we are using svr4.h. */
45 /* For the sake of libgcc2.c, indicate target supports atexit. */
48 /* Cpp, assembler, linker, library, and startfile spec's. */
50 /* This defines which switch letters take arguments. On svr4, most of
51 the normal cases (defined in gcc.c) apply, and we also have -h* and
52 -z* options (for the linker). Note however that there is no such
53 thing as a -T option for svr4. */
55 #define SWITCH_TAKES_ARG(CHAR) \
68 /* This defines which multi-letter switches take arguments. On svr4,
69 there are no such switches except those implemented by GCC itself. */
71 #define WORD_SWITCH_TAKES_ARG(STR) \
72 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
73 && strcmp (STR, "Tdata") && strcmp (STR, "Ttext") \
74 && strcmp (STR, "Tbss"))
76 /* You should redefine CPP_PREDEFINES in any file which includes this one.
77 The definition should be appropriate for the type of target system
78 involved, and it should include any -A (assertion) options which are
79 appropriate for the given target system. */
82 /* Provide an ASM_SPEC appropriate for svr4. Here we try to support as
83 many of the specialized svr4 assembler options as seems reasonable,
84 given that there are certain options which we can't (or shouldn't)
85 support directly due to the fact that they conflict with other options
86 for other svr4 tools (e.g. ld) or with other options for GCC itself.
87 For example, we don't support the -o (output file) or -R (remove
88 input file) options because GCC already handles these things. We
89 also don't support the -m (run m4) option for the assembler because
90 that conflicts with the -m (produce load map) option of the svr4
91 linker. We do however allow passing arbitrary options to the svr4
92 assembler via the -Wa, option.
94 Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,*
100 "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
102 /* svr4 assemblers need the `-' (indicating input from stdin) to come after
103 the -o option (and its argument) for some reason. If we try to put it
104 before the -o option, the assembler will try to read the file named as
105 the output file in the -o option as an input file (after it has already
106 written some stuff to it) and the binary stuff contained therein will
107 cause totally confuse the assembler, resulting in many spurious error
110 #undef ASM_FINAL_SPEC
111 #define ASM_FINAL_SPEC "%{pipe:-}"
113 /* Under svr4, the normal location of the `ld' and `as' programs is the
114 /usr/ccs/bin directory. */
116 #undef MD_EXEC_PREFIX
117 #define MD_EXEC_PREFIX "/usr/ccs/bin/"
119 /* Under svr4, the normal location of the various *crt*.o files is the
120 /usr/ccs/lib directory. */
122 #undef MD_STARTFILE_PREFIX
123 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
125 /* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default
126 standard C library (unless we are building a shared library) followed by
127 our own magical crtend.o file (see crtstuff.c) which provides part of
128 the support for getting C++ file-scope static object constructed before
129 entering `main', followed by the normal svr3/svr4 "finalizer" file,
130 which is either `gcrtn.o' or `crtn.o'. */
134 "%{!shared:%{!symbolic:-lc}} \
136 %{!shared:%{!symbolic:%{pg:gcrtn.o}%{!pg:crtn.o%s}}}"
138 /* Provide a LINK_SPEC appropriate for svr4. Here we provide support
139 for the special GCC options -static, -shared, and -symbolic which
140 allow us to link things in one of these three modes by applying the
141 appropriate combinations of options at link-time. We also provide
142 support here for as many of the other svr4 linker options as seems
143 reasonable, given that some of them conflict with options for other
144 svr4 tools (e.g. the assembler). In particular, we do support the
145 -h*, -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*,
146 -l*, -o*, -r, -s, -u*, and -L* options are directly supported
147 by gcc.c itself. We don't directly support the -m (generate load
148 map) option because that conflicts with the -m (run m4) option of
149 the svr4 assembler. We also don't directly support the svr4 linker's
150 -I* or -M* options because these conflict with existing GCC options.
151 We do however allow passing arbitrary options to the svr4 linker
152 via the -Wl, option. We don't support the svr4 linker's -a option
153 at all because it is totally useless and because it conflicts with
156 Note that gcc doesn't allow a space to follow -Y in a -YP,* option.
158 When the -G link option is used (-shared and -symbolic) a final link is
162 #define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
164 %{static:-dn -Bstatic} \
166 %{symbolic:-Bsymbolic -G -dy} \
169 %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
170 %{!p:-Y P,/usr/ccs/lib:/usr/lib}} \
173 /* Gcc automatically adds in one of the files /usr/ccs/lib/values-Xc.o,
174 /usr/ccs/lib/values-Xa.o, or /usr/ccs/lib/values-Xt.o for each final
175 link step (depending upon the other gcc options selected, such as
176 -traditional and -ansi). These files each contain one (initialized)
177 copy of a special variable called `_lib_version'. Each one of these
178 files has `_lib_version' initialized to a different (enum) value.
179 The SVR4 library routines query the value of `_lib_version' at run
180 to decide how they should behave. Specifically, they decide (based
181 upon the value of `_lib_version') if they will act in a strictly ANSI
182 conforming manner or not.
185 #undef STARTFILE_SPEC
186 #define STARTFILE_SPEC "%{!shared: \
188 %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} \
189 %{pg:gcrti.o%s}%{!pg:crti.o%s} \
190 %{ansi:values-Xc.o%s} \
192 %{traditional:values-Xt.o%s} \
193 %{!traditional:values-Xa.o%s}}}} crtbegin.o%s"
195 /* Attach a special .ident directive to the end of the file to identify
196 the version of GCC which compiled this code. The format of the
197 .ident string is patterned after the ones produced by native svr4
200 #define IDENT_ASM_OP ".ident"
202 #define ASM_FILE_END(FILE) \
204 fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
205 IDENT_ASM_OP, version_string); \
208 /* Allow #sccs in preprocessor. */
210 #define SCCS_DIRECTIVE
212 /* Output #ident as a .ident. */
214 #define ASM_OUTPUT_IDENT(FILE, NAME) \
215 fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
217 /* Use periods rather than dollar signs in special g++ assembler names. */
219 #define NO_DOLLAR_IN_LABEL
221 /* Writing `int' for a bitfield forces int alignment for the structure. */
223 #define PCC_BITFIELD_TYPE_MATTERS 1
225 /* Implicit library calls should use memcpy, not bcopy, etc. */
227 #define TARGET_MEM_FUNCTIONS
229 /* Handle #pragma weak and #pragma pack. */
231 #define HANDLE_SYSV_PRAGMA
233 /* System V Release 4 uses DWARF debugging info. */
235 #define DWARF_DEBUGGING_INFO
237 /* The numbers used to denote specific machine registers in the System V
238 Release 4 DWARF debugging information are quite likely to be totally
239 different from the numbers used in BSD stabs debugging information
240 for the same kind of target machine. Thus, we undefine the macro
241 DBX_REGISTER_NUMBER here as an extra inducement to get people to
242 provide proper machine-specific definitions of DBX_REGISTER_NUMBER
243 (which is also used to provide DWARF registers numbers in dwarfout.c)
244 in their tm.h files which include this file. */
246 #undef DBX_REGISTER_NUMBER
248 /* Define the actual types of some ANSI-mandated types. (These
249 definitions should work for most SVR4 systems). */
252 #define SIZE_TYPE "unsigned int"
255 #define PTRDIFF_TYPE "int"
258 #define WCHAR_TYPE "long int"
260 #undef WCHAR_TYPE_SIZE
261 #define WCHAR_TYPE_SIZE BITS_PER_WORD
263 /* This causes trouble, because it requires the host machine
264 to support ANSI C. */
265 /* #define MULTIBYTE_CHARS */
268 #define ASM_BYTE_OP ".byte"
271 #define SET_ASM_OP ".set"
273 /* This is how to begin an assembly language file. Most svr4 assemblers want
274 at least a .file directive to come first, and some want to see a .version
275 directive come right after that. Here we just establish a default
276 which generates only the .file directive. If you need a .version
277 directive for any specific target, you should override this definition
278 in the target-specific file which includes this one. */
280 #undef ASM_FILE_START
281 #define ASM_FILE_START(FILE) \
282 output_file_directive ((FILE), main_input_filename)
284 /* This is how to allocate empty space in some section. The .zero
285 pseudo-op is used for this on most svr4 assemblers. */
287 #define SKIP_ASM_OP ".zero"
289 #undef ASM_OUTPUT_SKIP
290 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
291 fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE))
293 /* This is how to output a reference to a user-level label named NAME.
294 `assemble_name' uses this.
296 For System V Release 4 the convention is *not* to prepend a leading
297 underscore onto user-level symbol names. */
299 #undef ASM_OUTPUT_LABELREF
300 #define ASM_OUTPUT_LABELREF(FILE,NAME) fprintf (FILE, "%s", NAME)
302 /* This is how to output an internal numbered label where
303 PREFIX is the class of label and NUM is the number within the class.
305 For most svr4 systems, the convention is that any symbol which begins
306 with a period is not put into the linker symbol table by the assembler. */
308 #undef ASM_OUTPUT_INTERNAL_LABEL
309 #define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
311 fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \
314 /* This is how to store into the string LABEL
315 the symbol_ref name of an internal numbered label where
316 PREFIX is the class of label and NUM is the number within the class.
317 This is suitable for output with `assemble_name'.
319 For most svr4 systems, the convention is that any symbol which begins
320 with a period is not put into the linker symbol table by the assembler. */
322 #undef ASM_GENERATE_INTERNAL_LABEL
323 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
325 sprintf (LABEL, "*.%s%d", PREFIX, NUM); \
328 /* Output the label which precedes a jumptable. Note that for all svr4
329 systems where we actually generate jumptables (which is to say every
330 svr4 target except i386, where we use casesi instead) we put the jump-
331 tables into the .rodata section and since other stuff could have been
332 put into the .rodata section prior to any given jumptable, we have to
333 make sure that the location counter for the .rodata section gets pro-
334 perly re-aligned prior to the actual beginning of the jump table. */
336 #define ALIGN_ASM_OP ".align"
338 #ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
339 #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
340 ASM_OUTPUT_ALIGN ((FILE), 2);
343 #undef ASM_OUTPUT_CASE_LABEL
344 #define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,JUMPTABLE) \
346 ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
347 ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
350 /* The standard SVR4 assembler seems to require that certain builtin
351 library routines (e.g. .udiv) be explicitly declared as .globl
352 in each assembly file where they are referenced. */
354 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
355 ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
357 /* This says how to output assembler code to declare an
358 uninitialized external linkage data object. Under SVR4,
359 the linker seems to want the alignment of data objects
360 to depend on their types. We do exactly that here. */
362 #define COMMON_ASM_OP ".comm"
364 #undef ASM_OUTPUT_ALIGNED_COMMON
365 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
367 fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \
368 assemble_name ((FILE), (NAME)); \
369 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
372 /* This says how to output assembler code to declare an
373 uninitialized internal linkage data object. Under SVR4,
374 the linker seems to want the alignment of data objects
375 to depend on their types. We do exactly that here. */
377 #define LOCAL_ASM_OP ".local"
379 #undef ASM_OUTPUT_ALIGNED_LOCAL
380 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
382 fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
383 assemble_name ((FILE), (NAME)); \
384 fprintf ((FILE), "\n"); \
385 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
388 /* This is the pseudo-op used to generate a 32-bit word of data with a
389 specific value in some section. This is the same for all known svr4
392 #define INT_ASM_OP ".long"
394 /* This is the pseudo-op used to generate a contiguous sequence of byte
395 values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
396 AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
398 #undef ASCII_DATA_ASM_OP
399 #define ASCII_DATA_ASM_OP ".ascii"
401 /* Support const sections and the ctors and dtors sections for g++.
402 Note that there appears to be two different ways to support const
403 sections at the moment. You can either #define the symbol
404 READONLY_DATA_SECTION (giving it some code which switches to the
405 readonly data section) or else you can #define the symbols
406 EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
407 SELECT_RTX_SECTION. We do both here just to be on the safe side. */
409 #define USE_CONST_SECTION 1
411 #define CONST_SECTION_ASM_OP ".section\t.rodata"
412 #define CTORS_SECTION_ASM_OP ".section\t.ctors,\"a\",@progbits"
413 #define DTORS_SECTION_ASM_OP ".section\t.dtors,\"a\",@progbits"
415 /* On svr4, we *do* have support for the .init section, and we can put
416 stuff in there to be executed before `main'. We let crtstuff.c and
417 other files know this by defining the following symbol. The definition
418 says how to change sections to the .init section. This is the same
419 for all know svr4 assemblers. */
421 #define INIT_SECTION_ASM_OP ".section\t.init"
423 /* A default list of other sections which we might be "in" at any given
424 time. For targets that use additional sections (e.g. .tdesc) you
425 should override this definition in the target-specific file which
426 includes this file. */
428 #undef EXTRA_SECTIONS
429 #define EXTRA_SECTIONS in_const, in_ctors, in_dtors
431 /* A default list of extra section function definitions. For targets
432 that use additional sections (e.g. .tdesc) you should override this
433 definition in the target-specific file which includes this file. */
435 #undef EXTRA_SECTION_FUNCTIONS
436 #define EXTRA_SECTION_FUNCTIONS \
437 CONST_SECTION_FUNCTION \
438 CTORS_SECTION_FUNCTION \
439 DTORS_SECTION_FUNCTION
441 #define READONLY_DATA_SECTION() const_section ()
443 extern void text_section ();
445 #define CONST_SECTION_FUNCTION \
449 if (!USE_CONST_SECTION) \
451 else if (in_section != in_const) \
453 fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
454 in_section = in_const; \
458 #define CTORS_SECTION_FUNCTION \
462 if (in_section != in_ctors) \
464 fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
465 in_section = in_ctors; \
469 #define DTORS_SECTION_FUNCTION \
473 if (in_section != in_dtors) \
475 fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
476 in_section = in_dtors; \
480 /* A C statement (sans semicolon) to output an element in the table of
481 global constructors. */
482 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
485 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
486 assemble_name (FILE, NAME); \
487 fprintf (FILE, "\n"); \
490 /* A C statement (sans semicolon) to output an element in the table of
491 global destructors. */
492 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
495 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
496 assemble_name (FILE, NAME); \
497 fprintf (FILE, "\n"); \
500 /* A C statement or statements to switch to the appropriate
501 section for output of DECL. DECL is either a `VAR_DECL' node
502 or a constant of some sort. RELOC indicates whether forming
503 the initial value of DECL requires link-time relocations. */
505 #define SELECT_SECTION(DECL,RELOC) \
507 if (TREE_CODE (DECL) == STRING_CST) \
509 if (! flag_writable_strings) \
514 else if (TREE_CODE (DECL) == VAR_DECL) \
516 if ((flag_pic && RELOC) \
517 || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
526 /* A C statement or statements to switch to the appropriate
527 section for output of RTX in mode MODE. RTX is some kind
528 of constant in RTL. The argument MODE is redundant except
529 in the case of a `const_int' rtx. Currently, these always
530 go into the const section. */
532 #undef SELECT_RTX_SECTION
533 #define SELECT_RTX_SECTION(MODE,RTX) const_section()
535 /* Define the strings used for the special svr4 .type and .size directives.
536 These strings generally do not vary from one system running svr4 to
537 another, but if a given system (e.g. m88k running svr) needs to use
538 different pseudo-op names for these, they may be overridden in the
539 file which includes this one. */
541 #define TYPE_ASM_OP ".type"
542 #define SIZE_ASM_OP ".size"
543 #define WEAK_ASM_OP ".weak"
545 /* The following macro defines the format used to output the second
546 operand of the .type assembler directive. Different svr4 assemblers
547 expect various different forms for this operand. The one given here
548 is just a default. You may need to override it in your machine-
549 specific tm.h file (depending upon the particulars of your assembler). */
551 #define TYPE_OPERAND_FMT "@%s"
553 /* Write the extra assembler code needed to declare a function's result.
554 Most svr4 assemblers don't require any special declaration of the
555 result value, but there are exceptions. */
557 #ifndef ASM_DECLARE_RESULT
558 #define ASM_DECLARE_RESULT(FILE, RESULT)
561 /* These macros generate the special .type and .size directives which
562 are used to set the corresponding fields of the linker symbol table
563 entries in an ELF object file under SVR4. These macros also output
564 the starting labels for the relevant functions/objects. */
566 /* Write the extra assembler code needed to declare a function properly.
567 Some svr4 assemblers need to also have something extra said about the
568 function's return value. We allow for that here. */
570 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
572 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
573 assemble_name (FILE, NAME); \
575 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
577 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
578 ASM_OUTPUT_LABEL(FILE, NAME); \
581 /* Write the extra assembler code needed to declare an object properly. */
583 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
585 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
586 assemble_name (FILE, NAME); \
588 fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
590 size_directive_output = 0; \
591 if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
593 size_directive_output = 1; \
594 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
595 assemble_name (FILE, NAME); \
596 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
598 ASM_OUTPUT_LABEL(FILE, NAME); \
601 /* Output the size directive for a decl in rest_of_decl_compilation
602 in the case where we did not do so before the initializer.
603 Once we find the error_mark_node, we know that the value of
604 size_directive_output was set
605 by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
607 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
609 char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
610 if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
611 && ! AT_END && TOP_LEVEL \
612 && DECL_INITIAL (DECL) == error_mark_node \
613 && !size_directive_output) \
615 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
616 assemble_name (FILE, name); \
617 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
621 /* This is how to declare the size of a function. */
623 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
625 if (!flag_inhibit_size_directive) \
628 static int labelno; \
630 ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
631 ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
632 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
633 assemble_name (FILE, (FNAME)); \
634 fprintf (FILE, ","); \
635 assemble_name (FILE, label); \
636 fprintf (FILE, "-"); \
637 assemble_name (FILE, (FNAME)); \
642 /* A table of bytes codes used by the ASM_OUTPUT_ASCII and
643 ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
644 corresponds to a particular byte value [0..255]. For any
645 given byte value, if the value in the corresponding table
646 position is zero, the given character can be output directly.
647 If the table value is 1, the byte must be output as a \ooo
648 octal escape. If the tables value is anything else, then the
649 byte value should be output as a \ followed by the value
650 in the table. Note that we can use standard UN*X escape
651 sequences for many control characters, but we don't use
652 \a to represent BEL because some svr4 assemblers (e.g. on
653 the i386) don't know about that. */
656 "\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\
657 \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\
658 \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\
659 \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\
660 \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\
661 \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\
662 \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\
663 \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"
665 /* Some svr4 assemblers have a limit on the number of characters which
666 can appear in the operand of a .string directive. If your assembler
667 has such a limitation, you should define STRING_LIMIT to reflect that
668 limit. Note that at least some svr4 assemblers have a limit on the
669 actual number of bytes in the double-quoted string, and that they
670 count each character in an escape sequence as one byte. Thus, an
671 escape sequence like \377 would count as four bytes.
673 If your target assembler doesn't support the .string directive, you
674 should define this to zero.
677 #define STRING_LIMIT ((unsigned) 256)
679 #define STRING_ASM_OP ".string"
681 /* The routine used to output NUL terminated strings. We use a special
682 version of this for most svr4 targets because doing so makes the
683 generated assembly code more compact (and thus faster to assemble)
684 as well as more readable, especially for targets like the i386
685 (where the only alternative is to output character sequences as
686 comma separated lists of numbers). */
688 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \
691 register unsigned char *_limited_str = (unsigned char *) (STR); \
692 register unsigned ch; \
693 fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \
694 for (; ch = *_limited_str; _limited_str++) \
696 register int escape; \
697 switch (escape = ESCAPES[ch]) \
703 fprintf ((FILE), "\\%03o", ch); \
706 putc ('\\', (FILE)); \
707 putc (escape, (FILE)); \
711 fprintf ((FILE), "\"\n"); \
715 /* The routine used to output sequences of byte values. We use a special
716 version of this for most svr4 targets because doing so makes the
717 generated assembly code more compact (and thus faster to assemble)
718 as well as more readable. Note that if we find subparts of the
719 character sequence which end with NUL (and which are shorter than
720 STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
722 #undef ASM_OUTPUT_ASCII
723 #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
726 register unsigned char *_ascii_bytes = (unsigned char *) (STR); \
727 register unsigned char *limit = _ascii_bytes + (LENGTH); \
728 register unsigned bytes_in_chunk = 0; \
729 for (; _ascii_bytes < limit; _ascii_bytes++) \
731 register unsigned char *p; \
732 if (bytes_in_chunk >= 60) \
734 fprintf ((FILE), "\"\n"); \
735 bytes_in_chunk = 0; \
737 for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
739 if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
741 if (bytes_in_chunk > 0) \
743 fprintf ((FILE), "\"\n"); \
744 bytes_in_chunk = 0; \
746 ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
751 register int escape; \
752 register unsigned ch; \
753 if (bytes_in_chunk == 0) \
754 fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \
755 switch (escape = ESCAPES[ch = *_ascii_bytes]) \
762 fprintf ((FILE), "\\%03o", ch); \
763 bytes_in_chunk += 4; \
766 putc ('\\', (FILE)); \
767 putc (escape, (FILE)); \
768 bytes_in_chunk += 2; \
773 if (bytes_in_chunk > 0) \
774 fprintf ((FILE), "\"\n"); \