File: as.h

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binutils-h8300-hms 2.16.1-10
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/* as.h - global header file
   Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   1999, 2000, 2001, 2002, 2003, 2004, 2005
   Free Software Foundation, Inc.

   This file is part of GAS, the GNU Assembler.

   GAS is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   GAS is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with GAS; see the file COPYING.  If not, write to the Free
   Software Foundation, 59 Temple Place - Suite 330, Boston, MA
   02111-1307, USA.  */

#ifndef GAS
#define GAS 1
/* I think this stuff is largely out of date.  xoxorich.
 
   CAPITALISED names are #defined.
   "lowercaseH" is #defined if "lowercase.h" has been #include-d.
   "lowercaseT" is a typedef of "lowercase" objects.
   "lowercaseP" is type "pointer to object of type 'lowercase'".
   "lowercaseS" is typedef struct ... lowercaseS.
  
   #define DEBUG to enable all the "know" assertion tests.
   #define SUSPECT when debugging hash code.
   #define COMMON as "extern" for all modules except one, where you #define
  	COMMON as "".
   If TEST is #defined, then we are testing a module: #define COMMON as "".  */

#include "config.h"
#include "bin-bugs.h"

/* This is the code recommended in the autoconf documentation, almost
   verbatim.  If it doesn't work for you, let me know, and notify
   djm@gnu.ai.mit.edu as well.  */
/* Added void* version for STDC case.  This is to be compatible with
   the declaration in bison.simple, used for m68k operand parsing.
   --KR 1995.08.08 */
/* Force void* decl for hpux.  This is what Bison uses.  --KR 1995.08.16 */

#ifndef __GNUC__
# if HAVE_ALLOCA_H
#  include <alloca.h>
# else
#  ifdef _AIX
/* Indented so that pre-ansi C compilers will ignore it, rather than
   choke on it.  Some versions of AIX require this to be the first
   thing in the file.  */
 #pragma alloca
#  else
#   ifndef alloca /* predefined by HP cc +Olibcalls */
#    if !defined (__STDC__) && !defined (__hpux)
extern char *alloca ();
#    else
extern void *alloca ();
#    endif /* __STDC__, __hpux */
#   endif /* alloca */
#  endif /* _AIX */
# endif /* HAVE_ALLOCA_H */
#endif /* __GNUC__ */

/* Now, tend to the rest of the configuration.  */

/* System include files first...  */
#include <stdio.h>
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_TYPES_H
/* for size_t, pid_t */
#include <sys/types.h>
#endif

#include "getopt.h"
/* The first getopt value for machine-independent long options.
   150 isn't special; it's just an arbitrary non-ASCII char value.  */
#define OPTION_STD_BASE 150
/* The first getopt value for machine-dependent long options.
   190 gives the standard options room to grow.  */
#define OPTION_MD_BASE 190

#ifdef DEBUG
#undef NDEBUG
#endif
#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
#define __PRETTY_FUNCTION__  ((char*)0)
#endif
#define assert(P) \
  ((void) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
#undef abort
#define abort()		as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)

/* Now GNU header files...  */
#include "ansidecl.h"
#ifdef BFD_ASSEMBLER
#include "bfd.h"
#endif
#include "libiberty.h"

/* Define the standard progress macros.  */
#include "progress.h"

/* This doesn't get taken care of anywhere.  */
#ifndef __MWERKS__  /* Metrowerks C chokes on the "defined (inline)"  */
#if !defined (__GNUC__) && !defined (inline)
#define inline
#endif
#endif /* !__MWERKS__ */

/* Other stuff from config.h.  */
#ifdef NEED_DECLARATION_STRSTR
extern char *strstr ();
#endif
#ifdef NEED_DECLARATION_MALLOC
extern PTR malloc ();
extern PTR realloc ();
#endif
#ifdef NEED_DECLARATION_FREE
extern void free ();
#endif
#ifdef NEED_DECLARATION_ERRNO
extern int errno;
#endif
#ifdef NEED_DECLARATION_ENVIRON
extern char **environ;
#endif

/* This is needed for VMS.  */
#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
#define unlink remove
#endif

/* Hack to make "gcc -Wall" not complain about obstack macros.  */
#if !defined (memcpy) && !defined (bcopy)
#define bcopy(src,dest,size)	memcpy (dest, src, size)
#endif

/* Make Saber happier on obstack.h.  */
#ifdef SABER
#undef  __PTR_TO_INT
#define __PTR_TO_INT(P) ((int) (P))
#undef  __INT_TO_PTR
#define __INT_TO_PTR(P) ((char *) (P))
#endif

#ifndef __LINE__
#define __LINE__ "unknown"
#endif /* __LINE__ */

#ifndef __FILE__
#define __FILE__ "unknown"
#endif /* __FILE__ */

#ifndef FOPEN_WB
#if defined GO32 || defined __MINGW32__
#include "fopen-bin.h"
#else
#include "fopen-same.h"
#endif
#endif

#ifndef EXIT_SUCCESS
#define EXIT_SUCCESS 0
#define EXIT_FAILURE 1
#endif

#ifndef SEEK_SET
#define SEEK_SET 0
#endif

#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free xfree

#define xfree free

#include "asintl.h"

#define BAD_CASE(val)							    \
  {									    \
    as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"),   \
	      (long) val, __LINE__, __FILE__);				    \
  }

#include "flonum.h"

/* These are assembler-wide concepts */

#ifdef BFD_ASSEMBLER
extern bfd *stdoutput;
typedef bfd_vma addressT;
typedef bfd_signed_vma offsetT;
#else
typedef unsigned long addressT;
typedef long offsetT;
#endif

/* Type of symbol value, etc.  For use in prototypes.  */
typedef addressT valueT;

#ifndef COMMON
#ifdef TEST
#define COMMON			/* Declare our COMMONs storage here.  */
#else
#define COMMON extern		/* Our commons live elsewhere.  */
#endif
#endif
/* COMMON now defined */

#ifdef DEBUG
#ifndef know
#define know(p) assert(p)	/* Verify our assumptions!  */
#endif /* not yet defined */
#else
#define know(p)			/* know() checks are no-op.ed  */
#endif

/* input_scrub.c */

/* Supplies sanitised buffers to read.c.
   Also understands printing line-number part of error messages.  */

/* subsegs.c     Sub-segments. Also, segment(=expression type)s.*/

#ifndef BFD_ASSEMBLER

#ifdef MANY_SEGMENTS
#include "bfd.h"
#define N_SEGMENTS 40
#define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
#define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
		 SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
		 SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
		 SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
#define SEG_TEXT SEG_E0
#define SEG_DATA SEG_E1
#define SEG_BSS SEG_E2
#define SEG_LAST SEG_E39
#else
#define N_SEGMENTS 3
#define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
#define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
#endif

typedef enum _segT
{
  SEG_ABSOLUTE = 0,
  SEG_LIST,
  SEG_UNKNOWN,
  SEG_GOOF,			/* Only happens if AS has a logic error.  */
  /* Invented so we don't crash printing
     error message involving weird segment.  */
  SEG_EXPR,			/* Intermediate expression values.  */
  SEG_DEBUG,			/* Debug segment */
  SEG_NTV,			/* Transfert vector preload segment.  */
  SEG_PTV,			/* Transfert vector postload segment.  */
  SEG_REGISTER			/* Mythical: a register-valued expression.  */
} segT;

#define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
#else
typedef asection *segT;
#define SEG_NORMAL(SEG)		(   (SEG) != absolute_section	\
				 && (SEG) != undefined_section	\
				 && (SEG) != reg_section	\
				 && (SEG) != expr_section)
#endif
typedef int subsegT;

/* What subseg we are accessing now?  */
COMMON subsegT now_subseg;

/* Segment our instructions emit to.  */
COMMON segT now_seg;

#ifdef BFD_ASSEMBLER
#define segment_name(SEG)	bfd_get_section_name (stdoutput, SEG)
#else
extern char const *const seg_name[];
#define segment_name(SEG)	seg_name[(int) (SEG)]
#endif

#ifndef BFD_ASSEMBLER
extern int section_alignment[];
#endif

#ifdef BFD_ASSEMBLER
extern segT reg_section, expr_section;
/* Shouldn't these be eliminated someday?  */
extern segT text_section, data_section, bss_section;
#define absolute_section	bfd_abs_section_ptr
#define undefined_section	bfd_und_section_ptr
#else
#define reg_section		SEG_REGISTER
#define expr_section		SEG_EXPR
#define text_section		SEG_TEXT
#define data_section		SEG_DATA
#define bss_section		SEG_BSS
#define absolute_section	SEG_ABSOLUTE
#define undefined_section	SEG_UNKNOWN
#endif


enum _relax_state
{
  /* Dummy frag used by listing code.  */
  rs_dummy = 0,

  /* Variable chars to be repeated fr_offset times.
     Fr_symbol unused. Used with fr_offset == 0 for a
     constant length frag.  */
  rs_fill,

  /* Align.  The fr_offset field holds the power of 2 to which to
     align.  The fr_var field holds the number of characters in the
     fill pattern.  The fr_subtype field holds the maximum number of
     bytes to skip when aligning, or 0 if there is no maximum.  */
  rs_align,

  /* Align code.  The fr_offset field holds the power of 2 to which
     to align.  This type is only generated by machine specific
     code, which is normally responsible for handling the fill
     pattern.  The fr_subtype field holds the maximum number of
     bytes to skip when aligning, or 0 if there is no maximum.  */
  rs_align_code,

  /* Test for alignment.  Like rs_align, but used by several targets
     to warn if data is not properly aligned.  */
  rs_align_test,

  /* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
     character.  */
  rs_org,

#ifndef WORKING_DOT_WORD
  /* JF: gunpoint */
  rs_broken_word,
#endif

  /* Machine specific relaxable (or similarly alterable) instruction.  */
  rs_machine_dependent,

  /* .space directive with expression operand that needs to be computed
     later.  Similar to rs_org, but different.
     fr_symbol: operand
     1 variable char: fill character  */
  rs_space,

  /* A DWARF leb128 value; only ELF uses this.  The subtype is 0 for
     unsigned, 1 for signed.  */
  rs_leb128,

  /* Exception frame information which we may be able to optimize.  */
  rs_cfa,

  /* Cross-fragment dwarf2 line number optimization.  */
  rs_dwarf2dbg
};

typedef enum _relax_state relax_stateT;

/* This type is used in prototypes, so it can't be a type that will be
   widened for argument passing.  */
typedef unsigned int relax_substateT;

/* Enough bits for address, but still an integer type.
   Could be a problem, cross-assembling for 64-bit machines.  */
typedef addressT relax_addressT;

struct relax_type
{
  /* Forward reach. Signed number. > 0.  */
  offsetT rlx_forward;
  /* Backward reach. Signed number. < 0.  */
  offsetT rlx_backward;

  /* Bytes length of this address.  */
  unsigned char rlx_length;

  /* Next longer relax-state.  0 means there is no 'next' relax-state.  */
  relax_substateT rlx_more;
};

typedef struct relax_type relax_typeS;

/* 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;

/* 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 warnings count as errors.  */
COMMON int flag_fatal_warnings; /* --fatal-warnings */

/* 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;

/* True if local absolute symbols are to be stripped.  */
COMMON int flag_strip_local_absolute;

/* True if we should generate a traditional format object file.  */
COMMON int flag_traditional_format;

/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
COMMON int flag_execstack;

/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
COMMON int flag_noexecstack;

/* name of emitted object file */
COMMON char *out_file_name;

/* name of file defining extensions to the basic instruction set */
COMMON char *insttbl_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;

/* Type of debugging information we should generate.  We currently support
   stabs, ECOFF, and DWARF2.

   NOTE!  This means debug information about the assembly source code itself
   and _not_ about possible debug information from a high-level language.
   This is especially relevant to DWARF2, since the compiler may emit line
   number directives that the assembler resolves.  */

enum debug_info_type
{
  DEBUG_UNSPECIFIED,
  DEBUG_NONE,
  DEBUG_STABS,
  DEBUG_ECOFF,
  DEBUG_DWARF,
  DEBUG_DWARF2
};

extern enum debug_info_type debug_type;
extern int use_gnu_debug_info_extensions;

/* Maximum level of macro nesting.  */
extern int max_macro_nest;

/* Verbosity level.  */
extern int verbose;

/* 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) (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) && !defined(VMS)
/* for use with -Wformat */

#if __GNUC__ == 2 && __GNUC_MINOR__ < 6
/* Support for double underscores in attribute names was added in gcc
   2.6, so avoid them if we are using an earlier version.  */
#define __printf__ printf
#define __format__ format
#endif

#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 /* __GNUC__ < 2 || defined(VMS) */

#define PRINTF_LIKE(FCN)	void FCN (const char *format, ...)
#define PRINTF_WHERE_LIKE(FCN)	void FCN (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 (const char *, int, const char *);
void   as_abort (const char *, int, const char *) ATTRIBUTE_NORETURN;
void   fprint_value (FILE *, addressT);
void   sprint_value (char *, addressT);
int    had_errors (void);
int    had_warnings (void);
void   as_warn_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
void   as_bad_value_out_of_range (char *, offsetT, offsetT, offsetT, char *, unsigned);
void   print_version_id (void);
char * app_push (void);
char * atof_ieee (char *, int, LITTLENUM_TYPE *);
char * input_scrub_include_file (char *, char *);
void   input_scrub_insert_line (const char *);
void   input_scrub_insert_file (char *);
char * input_scrub_new_file (char *);
char * input_scrub_next_buffer (char **bufp);
int    do_scrub_chars (int (*get) (char *, int), char *, int);
int    gen_to_words (LITTLENUM_TYPE *, int, long);
int    had_err (void);
int    ignore_input (void);
void   cond_finish_check (int);
void   cond_exit_macro (int);
int    seen_at_least_1_file (void);
void   app_pop (char *);
void   as_howmuch (FILE *);
void   as_perror (const char *, const char *);
void   as_where (char **, unsigned int *);
void   bump_line_counters (void);
void   do_scrub_begin (int);
void   input_scrub_begin (void);
void   input_scrub_close (void);
void   input_scrub_end (void);
int    new_logical_line (char *, int);
void   subsegs_begin (void);
void   subseg_change (segT, int);
segT   subseg_new (const char *, subsegT);
segT   subseg_force_new (const char *, subsegT);
void   subseg_set (segT, subsegT);
int    subseg_text_p (segT);
int    seg_not_empty_p (segT);
void   start_dependencies (char *);
void   register_dependency (char *);
void   print_dependencies (void);
#ifdef BFD_ASSEMBLER
segT   subseg_get (const char *, int);
#endif

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 (symbolS *, valueT, segT, int);
#endif

int check_eh_frame (struct expressionS *, unsigned int *);
int eh_frame_estimate_size_before_relax (fragS *);
int eh_frame_relax_frag (fragS *);
void eh_frame_convert_frag (fragS *);
int generic_force_reloc (struct fix *);

#include "expr.h"		/* Before targ-*.h */

/* This one starts the chain of target dependant headers.  */
#include "targ-env.h"

#ifdef OBJ_MAYBE_ELF
#define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
#else
#ifdef OBJ_ELF
#define IS_ELF 1
#else
#define IS_ELF 0
#endif
#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 */