664 lines
18 KiB
C
664 lines
18 KiB
C
/* as.h - global header file
|
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Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 1996
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Free Software Foundation, Inc.
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This file is part of GAS, the GNU Assembler.
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GAS is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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||
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||
GAS is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GAS; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#ifndef GAS
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#define GAS 1
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/*
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* I think this stuff is largely out of date. xoxorich.
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*
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* CAPITALISED names are #defined.
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* "lowercaseH" is #defined if "lowercase.h" has been #include-d.
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* "lowercaseT" is a typedef of "lowercase" objects.
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* "lowercaseP" is type "pointer to object of type 'lowercase'".
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* "lowercaseS" is typedef struct ... lowercaseS.
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*
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* #define DEBUG to enable all the "know" assertion tests.
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* #define SUSPECT when debugging hash code.
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* #define COMMON as "extern" for all modules except one, where you #define
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* COMMON as "".
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* If TEST is #defined, then we are testing a module: #define COMMON as "".
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*/
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#include "config.h"
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/* This is the code recommended in the autoconf documentation, almost
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verbatim. If it doesn't work for you, let me know, and notify
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djm@gnu.ai.mit.edu as well. */
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/* Added #undef for DJ Delorie. The right fix is to ensure that as.h
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is included first, before even any system header files, in all files
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that use it. KR 1994.11.03 */
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/* Added void* version for STDC case. This is to be compatible with
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the declaration in bison.simple, used for m68k operand parsing.
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--KR 1995.08.08 */
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/* Force void* decl for hpux. This is what Bison uses. --KR 1995.08.16 */
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/* AIX requires this to be the first thing in the file. */
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#ifdef __GNUC__
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# undef alloca
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# define alloca __builtin_alloca
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#else
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# if HAVE_ALLOCA_H
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# include <alloca.h>
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# else
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# ifdef _AIX
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#pragma alloca
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# else
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# ifndef alloca /* predefined by HP cc +Olibcalls */
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# if !defined (__STDC__) && !defined (__hpux)
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char *alloca ();
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# else
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void *alloca ();
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# endif /* __STDC__, __hpux */
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# endif /* alloca */
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# endif /* _AIX */
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# endif /* HAVE_ALLOCA_H */
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#endif
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/* Now, tend to the rest of the configuration. */
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/* System include files first... */
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#include <stdio.h>
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#include <ctype.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#include <strings.h>
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#ifdef HAVE_SYS_TYPES_H
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/* for size_t, pid_t */
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#include <sys/types.h>
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#endif
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/* Some systems do declare this, but this seems to be the universal
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declaration, though the parameter type varies. (It ought to use
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`const' but many systems prototype it without.) Include it here
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for systems that don't declare it. If conflicts arise, just add
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another autoconf test... */
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extern char *strdup (/* const char * */);
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#include <getopt.h>
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/* The first getopt value for machine-independent long options.
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150 isn't special; it's just an arbitrary non-ASCII char value. */
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#define OPTION_STD_BASE 150
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/* The first getopt value for machine-dependent long options.
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170 gives the standard options room to grow. */
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#define OPTION_MD_BASE 170
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#ifdef DEBUG
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#undef NDEBUG
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#endif
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#if !defined (__GNUC__) || __GNUC_MINOR__ <= 5
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#define __PRETTY_FUNCTION__ ((char*)0)
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#endif
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#if 0
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/* Handle lossage with assert.h. */
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#ifndef BROKEN_ASSERT
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#include <assert.h>
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#else /* BROKEN_ASSERT */
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#ifndef NDEBUG
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#define assert(p) ((p) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
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#else
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#define assert(p) ((p), 0)
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#endif
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#endif /* BROKEN_ASSERT */
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#else
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#define assert(P) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
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#undef abort
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#define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
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#endif
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/* Now GNU header files... */
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#include <ansidecl.h>
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#ifdef BFD_ASSEMBLER
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#include <bfd.h>
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#endif
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/* Define the standard progress macros. */
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#include <progress.h>
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/* This doesn't get taken care of anywhere. */
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#ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */
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#if !defined (__GNUC__) && !defined (inline)
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#define inline
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#endif
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#endif /* !__MWERKS__ */
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/* Other stuff from config.h. */
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#ifdef NEED_DECLARATION_MALLOC
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extern PTR malloc ();
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extern PTR realloc ();
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#endif
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#ifdef NEED_DECLARATION_FREE
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extern void free ();
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#endif
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#ifdef NEED_DECLARATION_ERRNO
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extern int errno;
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#endif
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/* This is needed for VMS. */
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#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
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#define unlink remove
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#endif
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/* Hack to make "gcc -Wall" not complain about obstack macros. */
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#if !defined (memcpy) && !defined (bcopy)
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#define bcopy(src,dest,size) memcpy(dest,src,size)
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#endif
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#ifdef BFD_ASSEMBLER
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/* This one doesn't get declared, but we're using it anyways. This
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should be fixed -- either it's part of the external interface or
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it's not. */
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extern PTR bfd_alloc_by_size_t PARAMS ((bfd *abfd, size_t sz));
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#endif
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/* Make Saber happier on obstack.h. */
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#ifdef SABER
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#undef __PTR_TO_INT
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#define __PTR_TO_INT(P) ((int)(P))
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#undef __INT_TO_PTR
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#define __INT_TO_PTR(P) ((char *)(P))
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#endif
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#ifndef __LINE__
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#define __LINE__ "unknown"
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#endif /* __LINE__ */
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#ifndef __FILE__
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#define __FILE__ "unknown"
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#endif /* __FILE__ */
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#ifndef __STDC__
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#ifndef const
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#define const
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#endif
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#ifndef volatile
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#define volatile
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#endif
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#endif /* ! __STDC__ */
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#ifndef FOPEN_WB
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#ifdef GO32
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#include "fopen-bin.h"
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#else
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#include "fopen-same.h"
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#endif
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#endif
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#ifndef EXIT_SUCCESS
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#define EXIT_SUCCESS 0
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#define EXIT_FAILURE 1
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#endif
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#define obstack_chunk_alloc xmalloc
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#define obstack_chunk_free xfree
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#define xfree free
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#define BAD_CASE(val) \
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{ \
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as_fatal("Case value %ld unexpected at line %d of file \"%s\"\n", \
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(long) val, __LINE__, __FILE__); \
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}
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/* Version 2.1 of Solaris had problems with this declaration, but I
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think that bug has since been fixed. If it causes problems on your
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system, just delete it. */
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extern char *strstr ();
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#include "flonum.h"
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/* These are assembler-wide concepts */
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#ifdef BFD_ASSEMBLER
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extern bfd *stdoutput;
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typedef bfd_vma addressT;
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typedef bfd_signed_vma offsetT;
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#else
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typedef unsigned long addressT;
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typedef long offsetT;
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#endif
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/* Type of symbol value, etc. For use in prototypes. */
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typedef addressT valueT;
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#ifndef COMMON
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#ifdef TEST
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#define COMMON /* declare our COMMONs storage here. */
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#else
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#define COMMON extern /* our commons live elswhere */
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#endif
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#endif
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/* COMMON now defined */
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#ifdef DEBUG
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#ifndef know
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#define know(p) assert(p) /* Verify our assumptions! */
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#endif /* not yet defined */
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#else
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#define know(p) /* know() checks are no-op.ed */
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#endif
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/* input_scrub.c */
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/*
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* Supplies sanitised buffers to read.c.
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* Also understands printing line-number part of error messages.
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*/
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/* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
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#ifndef BFD_ASSEMBLER
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#ifdef MANY_SEGMENTS
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#include "bfd.h"
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#define N_SEGMENTS 10
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#define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E9)
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#define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9
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#define SEG_TEXT SEG_E0
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#define SEG_DATA SEG_E1
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#define SEG_BSS SEG_E2
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#else
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#define N_SEGMENTS 3
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#define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
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#define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
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#endif
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typedef enum _segT
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{
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SEG_ABSOLUTE = 0,
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SEG_LIST,
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SEG_UNKNOWN,
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SEG_GOOF, /* Only happens if AS has a logic error. */
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/* Invented so we don't crash printing */
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/* error message involving weird segment. */
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SEG_EXPR, /* Intermediate expression values. */
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SEG_DEBUG, /* Debug segment */
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SEG_NTV, /* Transfert vector preload segment */
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SEG_PTV, /* Transfert vector postload segment */
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SEG_REGISTER /* Mythical: a register-valued expression */
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} segT;
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#define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
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#else
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typedef asection *segT;
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#define SEG_NORMAL(SEG) ((SEG) != absolute_section \
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&& (SEG) != undefined_section \
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&& (SEG) != reg_section \
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&& (SEG) != expr_section)
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#endif
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typedef int subsegT;
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/* What subseg we are accreting now? */
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COMMON subsegT now_subseg;
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/* Segment our instructions emit to. */
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COMMON segT now_seg;
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#ifdef BFD_ASSEMBLER
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#define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
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#else
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extern char const *const seg_name[];
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#define segment_name(SEG) seg_name[(int) (SEG)]
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#endif
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#ifndef BFD_ASSEMBLER
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extern int section_alignment[];
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#endif
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#ifdef BFD_ASSEMBLER
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extern segT reg_section, expr_section;
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/* Shouldn't these be eliminated someday? */
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extern segT text_section, data_section, bss_section;
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#define absolute_section bfd_abs_section_ptr
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#define undefined_section bfd_und_section_ptr
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#else
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#define reg_section SEG_REGISTER
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#define expr_section SEG_EXPR
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#define text_section SEG_TEXT
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#define data_section SEG_DATA
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#define bss_section SEG_BSS
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#define absolute_section SEG_ABSOLUTE
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#define undefined_section SEG_UNKNOWN
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#endif
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/* relax() */
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enum _relax_state
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{
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/* Variable chars to be repeated fr_offset times.
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Fr_symbol unused. Used with fr_offset == 0 for a
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constant length frag. */
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rs_fill = 1,
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/* Align: Fr_offset: power of 2. Variable chars: fill pattern. */
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rs_align,
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/* Align code: fr_offset: power of 2. Fill pattern is machine
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specific, defaulting to all zeros. */
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rs_align_code,
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/* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
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character. */
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rs_org,
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#ifndef WORKING_DOT_WORD
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/* JF: gunpoint */
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rs_broken_word,
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#endif
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/* machine-specific relaxable (or similarly alterable) instruction */
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rs_machine_dependent,
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/* .space directive with expression operand that needs to be computed
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later. Similar to rs_org, but different.
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fr_symbol: operand
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1 variable char: fill character */
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rs_space
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};
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typedef enum _relax_state relax_stateT;
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/* This type is used in prototypes, so it can't be a type that will be
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widened for argument passing. */
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typedef unsigned int relax_substateT;
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/* Enough bits for address, but still an integer type.
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Could be a problem, cross-assembling for 64-bit machines. */
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typedef addressT relax_addressT;
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/* frags.c */
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/*
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* A code fragment (frag) is some known number of chars, followed by some
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* unknown number of chars. Typically the unknown number of chars is an
|
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* instruction address whose size is yet unknown. We always know the greatest
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* possible size the unknown number of chars may become, and reserve that
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* much room at the end of the frag.
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* Once created, frags do not change address during assembly.
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* We chain the frags in (a) forward-linked list(s). The object-file address
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* of the 1st char of a frag is generally not known until after relax().
|
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* Many things at assembly time describe an address by {object-file-address
|
||
* of a particular frag}+offset.
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||
|
||
BUG: it may be smarter to have a single pointer off to various different
|
||
notes for different frag kinds. See how code pans
|
||
*/
|
||
struct frag
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||
{
|
||
/* Object file address. */
|
||
addressT fr_address;
|
||
/* Chain forward; ascending address order. Rooted in frch_root. */
|
||
struct frag *fr_next;
|
||
|
||
/* (Fixed) number of chars we know we have. May be 0. */
|
||
offsetT fr_fix;
|
||
/* (Variable) number of chars after above. May be 0. */
|
||
offsetT fr_var;
|
||
/* For variable-length tail. */
|
||
struct symbol *fr_symbol;
|
||
/* For variable-length tail. */
|
||
offsetT fr_offset;
|
||
/* Points to opcode low addr byte, for relaxation. */
|
||
char *fr_opcode;
|
||
|
||
#ifndef NO_LISTING
|
||
struct list_info_struct *line;
|
||
#endif
|
||
|
||
/* What state is my tail in? */
|
||
relax_stateT fr_type;
|
||
relax_substateT fr_subtype;
|
||
|
||
/* Track the alignment and offset of the current frag. With this,
|
||
sometimes we can avoid creating new frags for .align directives. */
|
||
unsigned short align_mask;
|
||
unsigned short align_offset;
|
||
|
||
/* These are needed only on the NS32K machines. But since we don't
|
||
include targ-cpu.h until after this structure has been defined,
|
||
we can't really conditionalize it. This code should be
|
||
rearranged a bit to make that possible.
|
||
|
||
In the meantime, if we get stuck like this with any other target,
|
||
create a union here. */
|
||
char fr_pcrel_adjust, fr_bsr;
|
||
|
||
/* Data begins here. */
|
||
char fr_literal[1];
|
||
};
|
||
|
||
#define SIZEOF_STRUCT_FRAG \
|
||
((char *)zero_address_frag.fr_literal-(char *)&zero_address_frag)
|
||
/* We want to say fr_literal[0] above. */
|
||
|
||
typedef struct frag fragS;
|
||
|
||
/* Current frag we are building. This frag is incomplete. It is, however,
|
||
included in frchain_now. The fr_fix field is bogus; instead, use:
|
||
obstack_next_free(&frags)-frag_now->fr_literal. */
|
||
COMMON fragS *frag_now;
|
||
extern int frag_now_fix ();
|
||
|
||
/* For foreign-segment symbol fixups. */
|
||
COMMON fragS zero_address_frag;
|
||
/* For local common (N_BSS segment) fixups. */
|
||
COMMON fragS bss_address_frag;
|
||
|
||
/* main program "as.c" (command arguments etc) */
|
||
|
||
COMMON unsigned char flag_no_comments; /* -f */
|
||
COMMON unsigned char flag_debug; /* -D */
|
||
COMMON unsigned char flag_signed_overflow_ok; /* -J */
|
||
#ifndef WORKING_DOT_WORD
|
||
COMMON unsigned char flag_warn_displacement; /* -K */
|
||
#endif
|
||
|
||
/* True if local symbols should be retained. */
|
||
COMMON int flag_keep_locals; /* -L */
|
||
|
||
/* True if we are assembling in MRI mode. */
|
||
COMMON int flag_mri;
|
||
|
||
/* True if we are assembling in m68k MRI mode. */
|
||
COMMON int flag_m68k_mri;
|
||
|
||
/* Should the data section be made read-only and appended to the text
|
||
section? */
|
||
COMMON unsigned char flag_readonly_data_in_text; /* -R */
|
||
|
||
/* True if warnings should be inhibited. */
|
||
COMMON int flag_no_warnings; /* -W */
|
||
|
||
/* True if we should attempt to generate output even if non-fatal errors
|
||
are detected. */
|
||
COMMON unsigned char flag_always_generate_output; /* -Z */
|
||
|
||
/* This is true if the assembler should output time and space usage. */
|
||
|
||
COMMON unsigned char flag_print_statistics;
|
||
|
||
/* name of emitted object file */
|
||
COMMON char *out_file_name;
|
||
|
||
/* TRUE if we need a second pass. */
|
||
COMMON int need_pass_2;
|
||
|
||
/* TRUE if we should do no relaxing, and
|
||
leave lots of padding. */
|
||
COMMON int linkrelax;
|
||
|
||
/* TRUE if we should produce a listing. */
|
||
extern int listing;
|
||
|
||
/* Maximum level of macro nesting. */
|
||
extern int max_macro_nest;
|
||
|
||
/* Obstack chunk size. Keep large for efficient space use, make small to
|
||
increase malloc calls for monitoring memory allocation. */
|
||
extern int chunksize;
|
||
|
||
struct _pseudo_type
|
||
{
|
||
/* assembler mnemonic, lower case, no '.' */
|
||
const char *poc_name;
|
||
/* Do the work */
|
||
void (*poc_handler) PARAMS ((int));
|
||
/* Value to pass to handler */
|
||
int poc_val;
|
||
};
|
||
|
||
typedef struct _pseudo_type pseudo_typeS;
|
||
|
||
/* Prefer varargs for non-ANSI compiler, since some will barf if the
|
||
ellipsis definition is used with a no-arguments declaration. */
|
||
#if defined (HAVE_VARARGS_H) && !defined (__STDC__)
|
||
#undef HAVE_STDARG_H
|
||
#endif
|
||
|
||
#if defined (HAVE_STDARG_H)
|
||
#define USE_STDARG
|
||
#endif
|
||
#if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
|
||
#define USE_VARARGS
|
||
#endif
|
||
|
||
#ifdef USE_STDARG
|
||
#if __GNUC__ >= 2
|
||
/* for use with -Wformat */
|
||
#define PRINTF_LIKE(FCN) void FCN (const char *format, ...) \
|
||
__attribute__ ((format (printf, 1, 2)))
|
||
#define PRINTF_WHERE_LIKE(FCN) void FCN (char *file, unsigned int line, \
|
||
const char *format, ...) \
|
||
__attribute__ ((format (printf, 3, 4)))
|
||
#else /* ANSI C with stdarg, but not GNU C */
|
||
#define PRINTF_LIKE(FCN) void FCN PARAMS ((const char *format, ...))
|
||
#define PRINTF_WHERE_LIKE(FCN) void FCN PARAMS ((char *file, \
|
||
unsigned int line, \
|
||
const char *format, ...))
|
||
#endif
|
||
#else /* not using stdarg */
|
||
#define PRINTF_LIKE(FCN) void FCN ()
|
||
#define PRINTF_WHERE_LIKE(FCN) void FCN ()
|
||
#endif
|
||
|
||
PRINTF_LIKE (as_bad);
|
||
PRINTF_LIKE (as_fatal);
|
||
PRINTF_LIKE (as_tsktsk);
|
||
PRINTF_LIKE (as_warn);
|
||
PRINTF_WHERE_LIKE (as_bad_where);
|
||
PRINTF_WHERE_LIKE (as_warn_where);
|
||
void as_assert PARAMS ((const char *, int, const char *));
|
||
void as_abort PARAMS ((const char *, int, const char *));
|
||
|
||
void fprint_value PARAMS ((FILE *file, addressT value));
|
||
void sprint_value PARAMS ((char *buf, addressT value));
|
||
|
||
int had_errors PARAMS ((void));
|
||
int had_warnings PARAMS ((void));
|
||
|
||
void print_version_id PARAMS ((void));
|
||
char *app_push PARAMS ((void));
|
||
char *atof_ieee PARAMS ((char *str, int what_kind, LITTLENUM_TYPE * words));
|
||
char *input_scrub_include_file PARAMS ((char *filename, char *position));
|
||
char *input_scrub_new_file PARAMS ((char *filename));
|
||
char *input_scrub_next_buffer PARAMS ((char **bufp));
|
||
PTR xmalloc PARAMS ((unsigned long size));
|
||
PTR xrealloc PARAMS ((PTR ptr, unsigned long n));
|
||
int do_scrub_chars PARAMS ((int (*get) (char **), char *to, int tolen));
|
||
int gen_to_words PARAMS ((LITTLENUM_TYPE * words, int precision,
|
||
long exponent_bits));
|
||
int had_err PARAMS ((void));
|
||
int ignore_input PARAMS ((void));
|
||
int seen_at_least_1_file PARAMS ((void));
|
||
void app_pop PARAMS ((char *arg));
|
||
void as_howmuch PARAMS ((FILE * stream));
|
||
void as_perror PARAMS ((const char *gripe, const char *filename));
|
||
void as_where PARAMS ((char **namep, unsigned int *linep));
|
||
void bump_line_counters PARAMS ((void));
|
||
void do_scrub_begin PARAMS ((void));
|
||
void input_scrub_begin PARAMS ((void));
|
||
void input_scrub_close PARAMS ((void));
|
||
void input_scrub_end PARAMS ((void));
|
||
void new_logical_line PARAMS ((char *fname, int line_number));
|
||
void subsegs_begin PARAMS ((void));
|
||
void subseg_change PARAMS ((segT seg, int subseg));
|
||
segT subseg_new PARAMS ((const char *name, subsegT subseg));
|
||
segT subseg_force_new PARAMS ((const char *name, subsegT subseg));
|
||
void subseg_set PARAMS ((segT seg, subsegT subseg));
|
||
#ifdef BFD_ASSEMBLER
|
||
segT subseg_get PARAMS ((const char *, int));
|
||
#endif
|
||
|
||
struct expressionS;
|
||
struct fix;
|
||
struct symbol;
|
||
struct relax_type;
|
||
|
||
#ifdef BFD_ASSEMBLER
|
||
/* literal.c */
|
||
valueT add_to_literal_pool PARAMS ((struct symbol *, valueT, segT, int));
|
||
#endif
|
||
|
||
#include "expr.h" /* Before targ-*.h */
|
||
|
||
/* this one starts the chain of target dependant headers */
|
||
#include "targ-env.h"
|
||
|
||
#include "struc-symbol.h"
|
||
#include "write.h"
|
||
#include "frags.h"
|
||
#include "hash.h"
|
||
#include "read.h"
|
||
#include "symbols.h"
|
||
|
||
#include "tc.h"
|
||
#include "obj.h"
|
||
|
||
#ifdef USE_EMULATIONS
|
||
#include "emul.h"
|
||
#endif
|
||
#include "listing.h"
|
||
|
||
#ifndef LOCAL_LABELS_DOLLAR
|
||
#define LOCAL_LABELS_DOLLAR 0
|
||
#endif
|
||
|
||
#ifndef LOCAL_LABELS_FB
|
||
#define LOCAL_LABELS_FB 0
|
||
#endif
|
||
|
||
#endif /* GAS */
|
||
|
||
/* end of as.h */
|