685 lines
19 KiB
C
685 lines
19 KiB
C
/* as.h - global header file
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Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
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1999, 2000, 2001
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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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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 the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef GAS
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#define GAS 1
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/* I think this stuff is largely out of date.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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#include "bin-bugs.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 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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#ifndef __GNUC__
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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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/* Indented so that pre-ansi C compilers will ignore it, rather than
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choke on it. Some versions of AIX require this to be the first
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thing in the file. */
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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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extern char *alloca ();
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# else
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extern 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 /* __GNUC__ */
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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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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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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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#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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190 gives the standard options room to grow. */
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#define OPTION_MD_BASE 190
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#ifdef DEBUG
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#undef NDEBUG
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#endif
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#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
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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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#include "libiberty.h"
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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_STRSTR
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extern char *strstr ();
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#endif
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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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#ifdef NEED_DECLARATION_ENVIRON
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extern char **environ;
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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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/* 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 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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#ifndef SEEK_SET
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#define SEEK_SET 0
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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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#include "asintl.h"
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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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#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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/* Supplies sanitised buffers to read.c.
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Also understands printing line-number part of error messages. */
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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 40
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#define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
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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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SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
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SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
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SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
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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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#define SEG_LAST SEG_E39
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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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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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/* 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. The fr_offset field holds the power of 2 to which to
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align. The fr_var field holds the number of characters in the
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fill pattern. The fr_subtype field holds the maximum number of
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bytes to skip when aligning, or 0 if there is no maximum. */
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rs_align,
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/* Align code. The fr_offset field holds the power of 2 to which
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to align. This type is only generated by machine specific
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code, which is normally responsible for handling the fill
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pattern. The fr_subtype field holds the maximum number of
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bytes to skip when aligning, or 0 if there is no maximum. */
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rs_align_code,
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/* Test for alignment. Like rs_align, but used by several targets
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to warn if data is not properly aligned. */
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rs_align_test,
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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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/* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
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unsigned, 1 for signed. */
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rs_leb128,
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/* Exception frame information which we may be able to optimize. */
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rs_cfa,
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/* Cross-fragment dwarf2 line number optimization. */
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rs_dwarf2dbg
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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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/* main program "as.c" (command arguments etc) */
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COMMON unsigned char flag_no_comments; /* -f */
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COMMON unsigned char flag_debug; /* -D */
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COMMON unsigned char flag_signed_overflow_ok; /* -J */
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#ifndef WORKING_DOT_WORD
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COMMON unsigned char flag_warn_displacement; /* -K */
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#endif
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/* True if local symbols should be retained. */
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COMMON int flag_keep_locals; /* -L */
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/* True if we are assembling in MRI mode. */
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COMMON int flag_mri;
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/* Should the data section be made read-only and appended to the text
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section? */
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COMMON unsigned char flag_readonly_data_in_text; /* -R */
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/* True if warnings should be inhibited. */
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COMMON int flag_no_warnings; /* -W */
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/* True if warnings count as errors. */
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COMMON int flag_fatal_warnings; /* --fatal-warnings */
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/* True if we should attempt to generate output even if non-fatal errors
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are detected. */
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COMMON unsigned char flag_always_generate_output; /* -Z */
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/* This is true if the assembler should output time and space usage. */
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COMMON unsigned char flag_print_statistics;
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/* True if local absolute symbols are to be stripped. */
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COMMON int flag_strip_local_absolute;
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/* True if we should generate a traditional format object file. */
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COMMON int flag_traditional_format;
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/* name of emitted object file */
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COMMON char *out_file_name;
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/* name of file defining extensions to the basic instruction set */
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COMMON char *insttbl_file_name;
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/* TRUE if we need a second pass. */
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COMMON int need_pass_2;
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/* TRUE if we should do no relaxing, and
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leave lots of padding. */
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COMMON int linkrelax;
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/* TRUE if we should produce a listing. */
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extern int listing;
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/* Type of debugging information we should generate. We currently support
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stabs, ECOFF, and DWARF2.
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NOTE! This means debug information about the assembly source code itself
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and _not_ about possible debug information from a high-level language.
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This is especially relevant to DWARF2, since the compiler may emit line
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number directives that the assembler resolves. */
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enum debug_info_type {
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DEBUG_UNSPECIFIED,
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DEBUG_NONE,
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DEBUG_STABS,
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DEBUG_ECOFF,
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DEBUG_DWARF,
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DEBUG_DWARF2
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};
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extern enum debug_info_type debug_type;
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/* Maximum level of macro nesting. */
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extern int max_macro_nest;
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/* Obstack chunk size. Keep large for efficient space use, make small to
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increase malloc calls for monitoring memory allocation. */
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extern int chunksize;
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struct _pseudo_type {
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/* assembler mnemonic, lower case, no '.' */
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const char *poc_name;
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/* Do the work */
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void (*poc_handler) PARAMS ((int));
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/* Value to pass to handler */
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int poc_val;
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};
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typedef struct _pseudo_type pseudo_typeS;
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/* Prefer varargs for non-ANSI compiler, since some will barf if the
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ellipsis definition is used with a no-arguments declaration. */
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#if defined (HAVE_VARARGS_H) && !defined (__STDC__)
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#undef HAVE_STDARG_H
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#endif
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#if defined (HAVE_STDARG_H)
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#define USE_STDARG
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#endif
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#if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
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#define USE_VARARGS
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#endif
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#ifdef USE_STDARG
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#if (__GNUC__ >= 2) && !defined(VMS)
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/* for use with -Wformat */
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#if __GNUC__ == 2 && __GNUC_MINOR__ < 6
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/* Support for double underscores in attribute names was added in gcc
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2.6, so avoid them if we are using an earlier version. */
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#define __printf__ printf
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#define __format__ format
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#endif
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#define PRINTF_LIKE(FCN) \
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void FCN (const char *format, ...) \
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__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 /* __GNUC__ < 2 || defined(VMS) */
|
||
|
||
#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 /* __GNUC__ < 2 || defined(VMS) */
|
||
|
||
#else /* ! USE_STDARG */
|
||
|
||
#define PRINTF_LIKE(FCN) void FCN ()
|
||
#define PRINTF_WHERE_LIKE(FCN) void FCN ()
|
||
|
||
#endif /* ! USE_STDARG */
|
||
|
||
PRINTF_LIKE (as_bad);
|
||
PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
|
||
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 *)) ATTRIBUTE_NORETURN;
|
||
|
||
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));
|
||
extern void input_scrub_insert_line PARAMS((const char *line));
|
||
extern void input_scrub_insert_file PARAMS((char *path));
|
||
char *input_scrub_new_file PARAMS ((char *filename));
|
||
char *input_scrub_next_buffer PARAMS ((char **bufp));
|
||
int do_scrub_chars PARAMS ((int (*get) (char *, int), 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));
|
||
void cond_finish_check PARAMS ((int));
|
||
void cond_exit_macro PARAMS ((int));
|
||
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 ((int));
|
||
void input_scrub_begin PARAMS ((void));
|
||
void input_scrub_close PARAMS ((void));
|
||
void input_scrub_end PARAMS ((void));
|
||
int 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
|
||
int subseg_text_p PARAMS ((segT));
|
||
|
||
void start_dependencies PARAMS ((char *));
|
||
void register_dependency PARAMS ((char *));
|
||
void print_dependencies PARAMS ((void));
|
||
|
||
struct expressionS;
|
||
struct fix;
|
||
typedef struct symbol symbolS;
|
||
struct relax_type;
|
||
typedef struct frag fragS;
|
||
|
||
#ifdef BFD_ASSEMBLER
|
||
/* literal.c */
|
||
valueT add_to_literal_pool PARAMS ((symbolS *, valueT, segT, int));
|
||
#endif
|
||
|
||
int check_eh_frame PARAMS ((struct expressionS *, unsigned int *));
|
||
int eh_frame_estimate_size_before_relax PARAMS ((fragS *));
|
||
int eh_frame_relax_frag PARAMS ((fragS *));
|
||
void eh_frame_convert_frag PARAMS ((fragS *));
|
||
|
||
#include "expr.h" /* Before targ-*.h */
|
||
|
||
/* this one starts the chain of target dependant headers */
|
||
#include "targ-env.h"
|
||
|
||
#ifdef TC_ARC
|
||
#include "struc-symbol.h"
|
||
#endif
|
||
|
||
#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"
|
||
|
||
#ifdef TC_M68K
|
||
/* True if we are assembling in m68k MRI mode. */
|
||
COMMON int flag_m68k_mri;
|
||
#else
|
||
#define flag_m68k_mri 0
|
||
#endif
|
||
|
||
#ifdef WARN_COMMENTS
|
||
COMMON int warn_comment;
|
||
COMMON unsigned int found_comment;
|
||
COMMON char *found_comment_file;
|
||
#endif
|
||
|
||
#ifndef NUMBERS_WITH_SUFFIX
|
||
#define NUMBERS_WITH_SUFFIX 0
|
||
#endif
|
||
|
||
#ifndef LOCAL_LABELS_DOLLAR
|
||
#define LOCAL_LABELS_DOLLAR 0
|
||
#endif
|
||
|
||
#ifndef LOCAL_LABELS_FB
|
||
#define LOCAL_LABELS_FB 0
|
||
#endif
|
||
|
||
#ifndef LABELS_WITHOUT_COLONS
|
||
#define LABELS_WITHOUT_COLONS 0
|
||
#endif
|
||
|
||
#ifndef NO_PSEUDO_DOT
|
||
#define NO_PSEUDO_DOT 0
|
||
#endif
|
||
|
||
#ifndef TEXT_SECTION_NAME
|
||
#define TEXT_SECTION_NAME ".text"
|
||
#define DATA_SECTION_NAME ".data"
|
||
#define BSS_SECTION_NAME ".bss"
|
||
#endif
|
||
|
||
#ifndef OCTETS_PER_BYTE_POWER
|
||
#define OCTETS_PER_BYTE_POWER 0
|
||
#endif
|
||
#ifndef OCTETS_PER_BYTE
|
||
#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
|
||
#endif
|
||
#if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
|
||
#error "Octets per byte conflicts with its power-of-two definition!"
|
||
#endif
|
||
|
||
#endif /* GAS */
|