1 /* Operating system specific defines to be used when targeting GCC for some
2 generic System V Release 4 system.
3 Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
4 Contributed by Ron Guilmette (rfg@monkeys.com).
5 Renamed and changed to suit Dynix/ptx v4 and later.
6 Modified by Tim Wright (timw@sequent.com).
8 This file is part of GNU CC.
10 GNU CC is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2, or (at your option)
15 GNU CC is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
20 You should have received a copy of the GNU General Public License
21 along with GNU CC; see the file COPYING. If not, write to
22 the Free Software Foundation, 59 Temple Place - Suite 330,
23 Boston, MA 02111-1307, USA.
27 /* Define a symbol indicating that we are using svr4.h. */
30 /* For the sake of libgcc2.c, indicate target supports atexit. */
33 /* Cpp, assembler, linker, library, and startfile spec's. */
35 /* This defines which switch letters take arguments. On svr4, most of
36 the normal cases (defined in gcc.c) apply, and we also have -h* and
37 -z* options (for the linker). Note however that there is no such
38 thing as a -T option for svr4. */
40 #define SWITCH_TAKES_ARG(CHAR) \
53 /* This defines which multi-letter switches take arguments. On svr4,
54 there are no such switches except those implemented by GCC itself. */
56 #define WORD_SWITCH_TAKES_ARG(STR) \
57 (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
58 && strcmp (STR, "Tdata") && strcmp (STR, "Ttext") \
59 && strcmp (STR, "Tbss"))
61 /* You should redefine CPP_PREDEFINES in any file which includes this one.
62 The definition should be appropriate for the type of target system
63 involved, and it should include any -A (assertion) options which are
64 appropriate for the given target system. */
67 /* Provide an ASM_SPEC appropriate for svr4. Here we try to support as
68 many of the specialized svr4 assembler options as seems reasonable,
69 given that there are certain options which we can't (or shouldn't)
70 support directly due to the fact that they conflict with other options
71 for other svr4 tools (e.g. ld) or with other options for GCC itself.
72 For example, we don't support the -o (output file) or -R (remove
73 input file) options because GCC already handles these things. We
74 also don't support the -m (run m4) option for the assembler because
75 that conflicts with the -m (produce load map) option of the svr4
76 linker. We do however allow passing arbitrary options to the svr4
77 assembler via the -Wa, option.
79 Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,*
85 "-no_0f_fix %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
87 /* svr4 assemblers need the `-' (indicating input from stdin) to come after
88 the -o option (and its argument) for some reason. If we try to put it
89 before the -o option, the assembler will try to read the file named as
90 the output file in the -o option as an input file (after it has already
91 written some stuff to it) and the binary stuff contained therein will
92 cause totally confuse the assembler, resulting in many spurious error
96 #define ASM_FINAL_SPEC "%{pipe:-}"
98 /* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default
99 standard C library (unless we are building a shared library). */
102 #define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
104 /* Provide a LIBGCC_SPEC appropriate for svr4. We also want to exclude
105 libgcc when -symbolic. */
108 #define LIBGCC_SPEC "%{!shared:%{!symbolic:-lgcc}}"
110 /* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own
111 magical crtend.o file (see crtstuff.c) which provides part of the
112 support for getting C++ file-scope static object constructed before
113 entering `main', followed by the normal svr3/svr4 "finalizer" file,
114 which is either `gcrtn.o' or `crtn.o'. */
117 #define ENDFILE_SPEC "crtend.o%s %{pg:gcrtn.o}%{!pg:crtn.o%s}"
119 /* Provide a LINK_SPEC appropriate for svr4. Here we provide support
120 for the special GCC options -static, -shared, and -symbolic which
121 allow us to link things in one of these three modes by applying the
122 appropriate combinations of options at link-time. We also provide
123 support here for as many of the other svr4 linker options as seems
124 reasonable, given that some of them conflict with options for other
125 svr4 tools (e.g. the assembler). In particular, we do support the
126 -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*,
127 -l*, -o*, -r, -s, -u*, and -L* options are directly supported
128 by gcc.c itself. We don't directly support the -m (generate load
129 map) option because that conflicts with the -m (run m4) option of
130 the svr4 assembler. We also don't directly support the svr4 linker's
131 -I* or -M* options because these conflict with existing GCC options.
132 We do however allow passing arbitrary options to the svr4 linker
133 via the -Wl, option. We don't support the svr4 linker's -a option
134 at all because it is totally useless and because it conflicts with
137 Note that gcc doesn't allow a space to follow -Y in a -YP,* option.
139 When the -G link option is used (-shared and -symbolic) a final link is
143 #define LINK_SPEC "%{h*} %{v:-V} \
145 %{static:-dn -Bstatic} \
146 %{shared:-G -dy -z text} \
147 %{symbolic:-Bsymbolic -G -dy -z text} \
150 %{!YP,*:%{p:-Y P,/lib/libp:/usr/lib/libp:/lib:/usr/lib} \
151 %{!p:-Y P,/lib:/usr/lib}} \
154 /* Gcc automatically adds in one of the files /lib/values-Xc.o,
155 /lib/values-Xa.o, or /lib/values-Xt.o for each final link
156 step (depending upon the other gcc options selected, such as
157 -traditional and -ansi). These files each contain one (initialized)
158 copy of a special variable called `_lib_version'. Each one of these
159 files has `_lib_version' initialized to a different (enum) value.
160 The SVR4 library routines query the value of `_lib_version' at run
161 to decide how they should behave. Specifically, they decide (based
162 upon the value of `_lib_version') if they will act in a strictly ANSI
163 conforming manner or not.
166 #undef STARTFILE_SPEC
167 #define STARTFILE_SPEC "%{!shared: \
169 %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\
170 %{pg:gcrti.o%s}%{!pg:crti.o%s} \
171 %{ansi:values-Xc.o%s} \
173 %{traditional:values-Xt.o%s} \
174 %{!traditional:values-Xa.o%s}} \
177 /* Attach a special .ident directive to the end of the file to identify
178 the version of GCC which compiled this code. The format of the
179 .ident string is patterned after the ones produced by native svr4
182 #define IDENT_ASM_OP ".ident"
184 #define ASM_FILE_END(FILE) \
186 if (!flag_no_ident) \
187 fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
188 IDENT_ASM_OP, version_string); \
191 /* Allow #sccs in preprocessor. */
193 #define SCCS_DIRECTIVE
195 /* Output #ident as a .ident. */
197 #define ASM_OUTPUT_IDENT(FILE, NAME) \
198 fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
200 /* Use periods rather than dollar signs in special g++ assembler names. */
202 #define NO_DOLLAR_IN_LABEL
204 /* Writing `int' for a bitfield forces int alignment for the structure. */
206 #define PCC_BITFIELD_TYPE_MATTERS 1
208 /* Implicit library calls should use memcpy, not bcopy, etc. */
210 #define TARGET_MEM_FUNCTIONS
212 /* Handle #pragma weak and #pragma pack. */
214 #define HANDLE_SYSV_PRAGMA
216 /* System V Release 4 uses DWARF debugging info. */
218 #define DWARF_DEBUGGING_INFO
220 /* The numbers used to denote specific machine registers in the System V
221 Release 4 DWARF debugging information are quite likely to be totally
222 different from the numbers used in BSD stabs debugging information
223 for the same kind of target machine. Thus, we undefine the macro
224 DBX_REGISTER_NUMBER here as an extra inducement to get people to
225 provide proper machine-specific definitions of DBX_REGISTER_NUMBER
226 (which is also used to provide DWARF registers numbers in dwarfout.c)
227 in their tm.h files which include this file. */
229 #undef DBX_REGISTER_NUMBER
231 /* gas on SVR4 supports the use of .stabs. Permit -gstabs to be used
232 in general, although it will only work when using gas. */
234 #define DBX_DEBUGGING_INFO
236 /* Use DWARF debugging info by default. */
238 #ifndef PREFERRED_DEBUGGING_TYPE
239 #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
242 /* Make LBRAC and RBRAC addresses relative to the start of the
243 function. The native Solaris stabs debugging format works this
244 way, gdb expects it, and it reduces the number of relocation
247 #define DBX_BLOCKS_FUNCTION_RELATIVE 1
249 /* When using stabs, gcc2_compiled must be a stabs entry, not an
250 ordinary symbol, or gdb won't see it. The stabs entry must be
251 before the N_SO in order for gdb to find it. */
253 #define ASM_IDENTIFY_GCC(FILE) \
256 if (write_symbols != DBX_DEBUG) \
257 fputs ("gcc2_compiled.:\n", FILE); \
259 fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE); \
263 /* Like block addresses, stabs line numbers are relative to the
266 #define ASM_OUTPUT_SOURCE_LINE(file, line) \
269 static int sym_lineno = 1; \
270 fprintf (file, ".stabn 68,0,%d,.LM%d-", \
272 assemble_name (file, \
273 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\
274 fprintf (file, "\n.LM%d:\n", sym_lineno); \
279 /* In order for relative line numbers to work, we must output the
280 stabs entry for the function name first. */
282 #define DBX_FUNCTION_FIRST
284 /* Generate a blank trailing N_SO to mark the end of the .o file, since
285 we can't depend upon the linker to mark .o file boundaries with
288 #define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
290 "\t.text\n\t.stabs \"\",%d,0,0,.Letext\n.Letext:\n", N_SO)
292 /* Define the actual types of some ANSI-mandated types. (These
293 definitions should work for most SVR4 systems). */
296 #define SIZE_TYPE "unsigned int"
299 #define PTRDIFF_TYPE "int"
302 #define WCHAR_TYPE "long int"
304 #undef WCHAR_TYPE_SIZE
305 #define WCHAR_TYPE_SIZE BITS_PER_WORD
307 /* This causes trouble, because it requires the host machine
308 to support ANSI C. */
309 /* #define MULTIBYTE_CHARS */
312 #define ASM_BYTE_OP ".byte"
315 #define SET_ASM_OP ".set"
317 /* This is how to begin an assembly language file. Most svr4 assemblers want
318 at least a .file directive to come first, and some want to see a .version
319 directive come right after that. Here we just establish a default
320 which generates only the .file directive. If you need a .version
321 directive for any specific target, you should override this definition
322 in the target-specific file which includes this one. */
324 #undef ASM_FILE_START
325 #define ASM_FILE_START(FILE) \
326 output_file_directive ((FILE), main_input_filename)
328 /* This is how to allocate empty space in some section. The .zero
329 pseudo-op is used for this on most svr4 assemblers. */
331 #define SKIP_ASM_OP ".zero"
333 #undef ASM_OUTPUT_SKIP
334 #define ASM_OUTPUT_SKIP(FILE,SIZE) \
335 fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE))
337 /* The prefix to add to user-visible assembler symbols.
339 For System V Release 4 the convention is *not* to prepend a leading
340 underscore onto user-level symbol names. */
342 #undef USER_LABEL_PREFIX
343 #define USER_LABEL_PREFIX ""
345 /* This is how to output an internal numbered label where
346 PREFIX is the class of label and NUM is the number within the class.
348 For most svr4 systems, the convention is that any symbol which begins
349 with a period is not put into the linker symbol table by the assembler. */
351 #undef ASM_OUTPUT_INTERNAL_LABEL
352 #define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
354 fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \
357 /* This is how to store into the string LABEL
358 the symbol_ref name of an internal numbered label where
359 PREFIX is the class of label and NUM is the number within the class.
360 This is suitable for output with `assemble_name'.
362 For most svr4 systems, the convention is that any symbol which begins
363 with a period is not put into the linker symbol table by the assembler. */
365 #undef ASM_GENERATE_INTERNAL_LABEL
366 #define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
368 sprintf (LABEL, "*.%s%d", PREFIX, NUM); \
371 /* Output the label which precedes a jumptable. Note that for all svr4
372 systems where we actually generate jumptables (which is to say every
373 svr4 target except i386, where we use casesi instead) we put the jump-
374 tables into the .rodata section and since other stuff could have been
375 put into the .rodata section prior to any given jumptable, we have to
376 make sure that the location counter for the .rodata section gets pro-
377 perly re-aligned prior to the actual beginning of the jump table. */
379 #define ALIGN_ASM_OP ".align"
381 #ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
382 #define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
383 ASM_OUTPUT_ALIGN ((FILE), 2);
386 #undef ASM_OUTPUT_CASE_LABEL
387 #define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,JUMPTABLE) \
389 ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
390 ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
393 /* The standard SVR4 assembler seems to require that certain builtin
394 library routines (e.g. .udiv) be explicitly declared as .globl
395 in each assembly file where they are referenced. */
397 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
398 ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
400 /* This says how to output assembler code to declare an
401 uninitialized external linkage data object. Under SVR4,
402 the linker seems to want the alignment of data objects
403 to depend on their types. We do exactly that here. */
405 #define COMMON_ASM_OP ".comm"
407 #undef ASM_OUTPUT_ALIGNED_COMMON
408 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
410 fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \
411 assemble_name ((FILE), (NAME)); \
412 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
415 /* This says how to output assembler code to declare an
416 uninitialized internal linkage data object. Under SVR4,
417 the linker seems to want the alignment of data objects
418 to depend on their types. We do exactly that here. */
420 #define LOCAL_ASM_OP ".local"
422 #undef ASM_OUTPUT_ALIGNED_LOCAL
423 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
425 fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
426 assemble_name ((FILE), (NAME)); \
427 fprintf ((FILE), "\n"); \
428 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
431 /* This is the pseudo-op used to generate a 32-bit word of data with a
432 specific value in some section. This is the same for all known svr4
435 #define INT_ASM_OP ".long"
437 /* This is the pseudo-op used to generate a contiguous sequence of byte
438 values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
439 AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
441 #undef ASCII_DATA_ASM_OP
442 #define ASCII_DATA_ASM_OP ".ascii"
444 /* Support const sections and the ctors and dtors sections for g++.
445 Note that there appears to be two different ways to support const
446 sections at the moment. You can either #define the symbol
447 READONLY_DATA_SECTION (giving it some code which switches to the
448 readonly data section) or else you can #define the symbols
449 EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
450 SELECT_RTX_SECTION. We do both here just to be on the safe side. */
452 #define USE_CONST_SECTION 1
454 #define CONST_SECTION_ASM_OP ".section\t.rodata"
456 /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
458 Note that we want to give these sections the SHF_WRITE attribute
459 because these sections will actually contain data (i.e. tables of
460 addresses of functions in the current root executable or shared library
461 file) and, in the case of a shared library, the relocatable addresses
462 will have to be properly resolved/relocated (and then written into) by
463 the dynamic linker when it actually attaches the given shared library
464 to the executing process. (Note that on SVR4, you may wish to use the
465 `-z text' option to the ELF linker, when building a shared library, as
466 an additional check that you are doing everything right. But if you do
467 use the `-z text' option when building a shared library, you will get
468 errors unless the .ctors and .dtors sections are marked as writable
469 via the SHF_WRITE attribute.) */
471 #define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\""
472 #define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\""
474 /* On svr4, we *do* have support for the .init and .fini sections, and we
475 can put stuff in there to be executed before and after `main'. We let
476 crtstuff.c and other files know this by defining the following symbols.
477 The definitions say how to change sections to the .init and .fini
478 sections. This is the same for all known svr4 assemblers. */
480 #define INIT_SECTION_ASM_OP ".section\t.init"
481 #define FINI_SECTION_ASM_OP ".section\t.fini"
483 /* A default list of other sections which we might be "in" at any given
484 time. For targets that use additional sections (e.g. .tdesc) you
485 should override this definition in the target-specific file which
486 includes this file. */
488 #undef EXTRA_SECTIONS
489 #define EXTRA_SECTIONS in_const, in_ctors, in_dtors
491 /* A default list of extra section function definitions. For targets
492 that use additional sections (e.g. .tdesc) you should override this
493 definition in the target-specific file which includes this file. */
495 #undef EXTRA_SECTION_FUNCTIONS
496 #define EXTRA_SECTION_FUNCTIONS \
497 CONST_SECTION_FUNCTION \
498 CTORS_SECTION_FUNCTION \
499 DTORS_SECTION_FUNCTION
501 #define READONLY_DATA_SECTION() const_section ()
503 extern void text_section ();
505 #define CONST_SECTION_FUNCTION \
509 if (!USE_CONST_SECTION) \
511 else if (in_section != in_const) \
513 fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
514 in_section = in_const; \
518 #define CTORS_SECTION_FUNCTION \
522 if (in_section != in_ctors) \
524 fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
525 in_section = in_ctors; \
529 #define DTORS_SECTION_FUNCTION \
533 if (in_section != in_dtors) \
535 fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
536 in_section = in_dtors; \
540 /* Switch into a generic section.
541 This is currently only used to support section attributes.
543 We make the section read-only and executable for a function decl,
544 read-only for a const data decl, and writable for a non-const data decl. */
545 #define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
546 fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \
547 (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
548 (DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw")
551 /* A C statement (sans semicolon) to output an element in the table of
552 global constructors. */
553 #define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
556 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
557 assemble_name (FILE, NAME); \
558 fprintf (FILE, "\n"); \
561 /* A C statement (sans semicolon) to output an element in the table of
562 global destructors. */
563 #define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
566 fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
567 assemble_name (FILE, NAME); \
568 fprintf (FILE, "\n"); \
571 /* A C statement or statements to switch to the appropriate
572 section for output of DECL. DECL is either a `VAR_DECL' node
573 or a constant of some sort. RELOC indicates whether forming
574 the initial value of DECL requires link-time relocations. */
576 #define SELECT_SECTION(DECL,RELOC) \
578 if (TREE_CODE (DECL) == STRING_CST) \
580 if (! flag_writable_strings) \
585 else if (TREE_CODE (DECL) == VAR_DECL) \
587 if ((flag_pic && RELOC) \
588 || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
589 || !DECL_INITIAL (DECL) \
590 || (DECL_INITIAL (DECL) != error_mark_node \
591 && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
600 /* A C statement or statements to switch to the appropriate
601 section for output of RTX in mode MODE. RTX is some kind
602 of constant in RTL. The argument MODE is redundant except
603 in the case of a `const_int' rtx. Currently, these always
604 go into the const section. */
606 #undef SELECT_RTX_SECTION
607 #define SELECT_RTX_SECTION(MODE,RTX) const_section()
609 /* Define the strings used for the special svr4 .type and .size directives.
610 These strings generally do not vary from one system running svr4 to
611 another, but if a given system (e.g. m88k running svr) needs to use
612 different pseudo-op names for these, they may be overridden in the
613 file which includes this one. */
615 #define TYPE_ASM_OP ".type"
616 #define SIZE_ASM_OP ".size"
618 /* This is how we tell the assembler that a symbol is weak. */
620 #define ASM_WEAKEN_LABEL(FILE,NAME) \
621 do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
622 fputc ('\n', FILE); } while (0)
624 /* The following macro defines the format used to output the second
625 operand of the .type assembler directive. Different svr4 assemblers
626 expect various different forms for this operand. The one given here
627 is just a default. You may need to override it in your machine-
628 specific tm.h file (depending upon the particulars of your assembler). */
630 #define TYPE_OPERAND_FMT "@%s"
632 /* Write the extra assembler code needed to declare a function's result.
633 Most svr4 assemblers don't require any special declaration of the
634 result value, but there are exceptions. */
636 #ifndef ASM_DECLARE_RESULT
637 #define ASM_DECLARE_RESULT(FILE, RESULT)
640 /* These macros generate the special .type and .size directives which
641 are used to set the corresponding fields of the linker symbol table
642 entries in an ELF object file under SVR4. These macros also output
643 the starting labels for the relevant functions/objects. */
645 /* Write the extra assembler code needed to declare a function properly.
646 Some svr4 assemblers need to also have something extra said about the
647 function's return value. We allow for that here. */
649 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
651 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
652 assemble_name (FILE, NAME); \
654 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
656 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
657 ASM_OUTPUT_LABEL(FILE, NAME); \
660 /* Write the extra assembler code needed to declare an object properly. */
662 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
664 fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
665 assemble_name (FILE, NAME); \
667 fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
669 size_directive_output = 0; \
670 if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
672 size_directive_output = 1; \
673 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
674 assemble_name (FILE, NAME); \
675 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
677 ASM_OUTPUT_LABEL(FILE, NAME); \
680 /* Output the size directive for a decl in rest_of_decl_compilation
681 in the case where we did not do so before the initializer.
682 Once we find the error_mark_node, we know that the value of
683 size_directive_output was set
684 by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
686 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
688 char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
689 if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
690 && ! AT_END && TOP_LEVEL \
691 && DECL_INITIAL (DECL) == error_mark_node \
692 && !size_directive_output) \
694 size_directive_output = 1; \
695 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
696 assemble_name (FILE, name); \
697 fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
701 /* This is how to declare the size of a function. */
703 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
705 if (!flag_inhibit_size_directive) \
708 static int labelno; \
710 ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
711 ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
712 fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
713 assemble_name (FILE, (FNAME)); \
714 fprintf (FILE, ","); \
715 assemble_name (FILE, label); \
716 fprintf (FILE, "-"); \
717 assemble_name (FILE, (FNAME)); \
722 /* A table of bytes codes used by the ASM_OUTPUT_ASCII and
723 ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
724 corresponds to a particular byte value [0..255]. For any
725 given byte value, if the value in the corresponding table
726 position is zero, the given character can be output directly.
727 If the table value is 1, the byte must be output as a \ooo
728 octal escape. If the tables value is anything else, then the
729 byte value should be output as a \ followed by the value
730 in the table. Note that we can use standard UN*X escape
731 sequences for many control characters, but we don't use
732 \a to represent BEL because some svr4 assemblers (e.g. on
733 the i386) don't know about that. Also, we don't use \v
734 since some versions of gas, such as 2.2 did not accept it. */
737 "\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
738 \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\
739 \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\
740 \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\
741 \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\
742 \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\
743 \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\
744 \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"
746 /* Some svr4 assemblers have a limit on the number of characters which
747 can appear in the operand of a .string directive. If your assembler
748 has such a limitation, you should define STRING_LIMIT to reflect that
749 limit. Note that at least some svr4 assemblers have a limit on the
750 actual number of bytes in the double-quoted string, and that they
751 count each character in an escape sequence as one byte. Thus, an
752 escape sequence like \377 would count as four bytes.
754 If your target assembler doesn't support the .string directive, you
755 should define this to zero.
758 #define STRING_LIMIT ((unsigned) 256)
760 #define STRING_ASM_OP ".string"
762 /* The routine used to output NUL terminated strings. We use a special
763 version of this for most svr4 targets because doing so makes the
764 generated assembly code more compact (and thus faster to assemble)
765 as well as more readable, especially for targets like the i386
766 (where the only alternative is to output character sequences as
767 comma separated lists of numbers). */
769 #define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \
772 register unsigned char *_limited_str = (unsigned char *) (STR); \
773 register unsigned ch; \
774 fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \
775 for (; ch = *_limited_str; _limited_str++) \
777 register int escape; \
778 switch (escape = ESCAPES[ch]) \
784 fprintf ((FILE), "\\%03o", ch); \
787 putc ('\\', (FILE)); \
788 putc (escape, (FILE)); \
792 fprintf ((FILE), "\"\n"); \
796 /* The routine used to output sequences of byte values. We use a special
797 version of this for most svr4 targets because doing so makes the
798 generated assembly code more compact (and thus faster to assemble)
799 as well as more readable. Note that if we find subparts of the
800 character sequence which end with NUL (and which are shorter than
801 STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
803 #undef ASM_OUTPUT_ASCII
804 #define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
807 register unsigned char *_ascii_bytes = (unsigned char *) (STR); \
808 register unsigned char *limit = _ascii_bytes + (LENGTH); \
809 register unsigned bytes_in_chunk = 0; \
810 for (; _ascii_bytes < limit; _ascii_bytes++) \
812 register unsigned char *p; \
813 if (bytes_in_chunk >= 60) \
815 fprintf ((FILE), "\"\n"); \
816 bytes_in_chunk = 0; \
818 for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
820 if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
822 if (bytes_in_chunk > 0) \
824 fprintf ((FILE), "\"\n"); \
825 bytes_in_chunk = 0; \
827 ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
832 register int escape; \
833 register unsigned ch; \
834 if (bytes_in_chunk == 0) \
835 fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \
836 switch (escape = ESCAPES[ch = *_ascii_bytes]) \
843 fprintf ((FILE), "\\%03o", ch); \
844 bytes_in_chunk += 4; \
847 putc ('\\', (FILE)); \
848 putc (escape, (FILE)); \
849 bytes_in_chunk += 2; \
854 if (bytes_in_chunk > 0) \
855 fprintf ((FILE), "\"\n"); \
859 /* All SVR4 targets use the ELF object file format. */
860 #define OBJECT_FORMAT_ELF