[deliverable/binutils-gdb.git] / gas / as.h

/* as.h - global header file
   Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
   1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
   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 3, 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, 51 Franklin Street - Fifth Floor, Boston, MA
   02110-1301, 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/* I think this stuff is largely out of date.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 "alloca-conf.h"

/* 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

#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif

#include <stdarg.h>

#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 *) NULL)
#endif
#define gas_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"
#include "bfd.h"
#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_ENVIRON
extern char **environ;
#endif
#ifdef NEED_DECLARATION_ERRNO
extern int errno;
#endif
#ifdef NEED_DECLARATION_FFS
extern int ffs (int);
#endif
#ifdef NEED_DECLARATION_FREE
extern void free ();
#endif
#ifdef NEED_DECLARATION_MALLOC
extern void *malloc ();
extern void *realloc ();
#endif
#ifdef NEED_DECLARATION_STRSTR
extern char *strstr ();
#endif

#if !HAVE_DECL_MEMPCPY
void *mempcpy(void *, const void *, size_t);
#endif

#if !HAVE_DECL_VSNPRINTF
extern int vsnprintf(char *, size_t, const char *, va_list);
#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
#ifdef USE_BINARY_FOPEN
#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__);				    \
  }
\f
#include "flonum.h"

/* These are assembler-wide concepts */

extern bfd *stdoutput;
typedef bfd_vma addressT;
typedef bfd_signed_vma offsetT;

/* 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 */

#ifndef ENABLE_CHECKING
#define ENABLE_CHECKING 0
#endif

#if ENABLE_CHECKING || defined (DEBUG)
#ifndef know
#define know(p) gas_assert(p)	/* Verify our assumptions!  */
#endif /* not yet defined */
#else
#define know(p)	do {} while (0)	/* know() checks are no-op.ed  */
#endif
\f
/* input_scrub.c */

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

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

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

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

#define segment_name(SEG)	bfd_get_section_name (stdoutput, SEG)

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

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;
\f
/* 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 debug sections should be compressed.  */
COMMON int flag_compress_debug;

/* 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;
\f
/* 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;

#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) */

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   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 * ieee_md_atof (int, char *, int *, bfd_boolean);
char * vax_md_atof (int, char *, int *);
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_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);
int    new_logical_line_flags (char *, int, 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);
segT   subseg_get (const char *, int);

const char *remap_debug_filename (const char *);
void add_debug_prefix_map (const char *);

struct expressionS;
struct fix;
typedef struct symbol symbolS;
typedef struct frag fragS;

/* literal.c */
valueT add_to_literal_pool (symbolS *, valueT, segT, int);

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 H_TICK_HEX
extern int enable_h_tick_hex;
#endif

#ifdef TC_M68K
/* True if we are assembling in m68k MRI mode.  */
COMMON int flag_m68k_mri;
#define DOLLAR_AMBIGU 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

#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
/* If .size directive failure should be error or warning.  */
COMMON enum
  {
    size_check_error = 0,
    size_check_warning
  }
flag_size_check;
#endif

#ifndef DOLLAR_AMBIGU
#define DOLLAR_AMBIGU 0
#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 */
Commit	Line	Data
	1	/* as.h - global header file
	2	Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
	3	1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
	4	Free Software Foundation, Inc.
	5
	6	This file is part of GAS, the GNU Assembler.
	7
	8	GAS is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 3, or (at your option)
	11	any later version.
	12
	13	GAS is distributed in the hope that it will be useful, but WITHOUT
	14	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	15	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	16	License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with GAS; see the file COPYING. If not, write to the Free
	20	Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
	21	02110-1301, USA. */
	22
	23	#ifndef GAS
	24	#define GAS 1
	25	/* I think this stuff is largely out of date. xoxorich.
	26
	27	CAPITALISED names are #defined.
	28	"lowercaseH" is #defined if "lowercase.h" has been #include-d.
	29	"lowercaseT" is a typedef of "lowercase" objects.
	30	"lowercaseP" is type "pointer to object of type 'lowercase'".
	31	"lowercaseS" is typedef struct ... lowercaseS.
	32
	33	#define DEBUG to enable all the "know" assertion tests.
	34	#define SUSPECT when debugging hash code.
	35	#define COMMON as "extern" for all modules except one, where you #define
	36	COMMON as "".
	37	If TEST is #defined, then we are testing a module: #define COMMON as "". */
	38
	39	#include "alloca-conf.h"
	40
	41	/* Now, tend to the rest of the configuration. */
	42
	43	/* System include files first... */
	44	#include <stdio.h>
	45	#ifdef HAVE_STRING_H
	46	#include <string.h>
	47	#else
	48	#ifdef HAVE_STRINGS_H
	49	#include <strings.h>
	50	#endif
	51	#endif
	52	#ifdef HAVE_STDLIB_H
	53	#include <stdlib.h>
	54	#endif
	55	#ifdef HAVE_UNISTD_H
	56	#include <unistd.h>
	57	#endif
	58	#ifdef HAVE_SYS_TYPES_H
	59	/* for size_t, pid_t */
	60	#include <sys/types.h>
	61	#endif
	62
	63	#ifdef HAVE_ERRNO_H
	64	#include <errno.h>
	65	#endif
	66
	67	#include <stdarg.h>
	68
	69	#include "getopt.h"
	70	/* The first getopt value for machine-independent long options.
	71	150 isn't special; it's just an arbitrary non-ASCII char value. */
	72	#define OPTION_STD_BASE 150
	73	/* The first getopt value for machine-dependent long options.
	74	190 gives the standard options room to grow. */
	75	#define OPTION_MD_BASE 190
	76
	77	#ifdef DEBUG
	78	#undef NDEBUG
	79	#endif
	80	#if __GNUC__ < 2 \|\| (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
	81	#define __PRETTY_FUNCTION__ ((char *) NULL)
	82	#endif
	83	#define gas_assert(P) \
	84	((void) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
	85	#undef abort
	86	#define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
	87
	88	/* Now GNU header files... */
	89	#include "ansidecl.h"
	90	#include "bfd.h"
	91	#include "libiberty.h"
	92
	93	/* Define the standard progress macros. */
	94	#include "progress.h"
	95
	96	/* This doesn't get taken care of anywhere. */
	97	#ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */
	98	#if !defined (__GNUC__) && !defined (inline)
	99	#define inline
	100	#endif
	101	#endif /* !__MWERKS__ */
	102
	103	/* Other stuff from config.h. */
	104	#ifdef NEED_DECLARATION_ENVIRON
	105	extern char **environ;
	106	#endif
	107	#ifdef NEED_DECLARATION_ERRNO
	108	extern int errno;
	109	#endif
	110	#ifdef NEED_DECLARATION_FFS
	111	extern int ffs (int);
	112	#endif
	113	#ifdef NEED_DECLARATION_FREE
	114	extern void free ();
	115	#endif
	116	#ifdef NEED_DECLARATION_MALLOC
	117	extern void *malloc ();
	118	extern void *realloc ();
	119	#endif
	120	#ifdef NEED_DECLARATION_STRSTR
	121	extern char *strstr ();
	122	#endif
	123
	124	#if !HAVE_DECL_MEMPCPY
	125	void mempcpy(void , const void *, size_t);
	126	#endif
	127
	128	#if !HAVE_DECL_VSNPRINTF
	129	extern int vsnprintf(char , size_t, const char , va_list);
	130	#endif
	131
	132	/* This is needed for VMS. */
	133	#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
	134	#define unlink remove
	135	#endif
	136
	137	/* Hack to make "gcc -Wall" not complain about obstack macros. */
	138	#if !defined (memcpy) && !defined (bcopy)
	139	#define bcopy(src,dest,size) memcpy (dest, src, size)
	140	#endif
	141
	142	/* Make Saber happier on obstack.h. */
	143	#ifdef SABER
	144	#undef __PTR_TO_INT
	145	#define __PTR_TO_INT(P) ((int) (P))
	146	#undef __INT_TO_PTR
	147	#define __INT_TO_PTR(P) ((char *) (P))
	148	#endif
	149
	150	#ifndef __LINE__
	151	#define __LINE__ "unknown"
	152	#endif /* __LINE__ */
	153
	154	#ifndef __FILE__
	155	#define __FILE__ "unknown"
	156	#endif /* __FILE__ */
	157
	158	#ifndef FOPEN_WB
	159	#ifdef USE_BINARY_FOPEN
	160	#include "fopen-bin.h"
	161	#else
	162	#include "fopen-same.h"
	163	#endif
	164	#endif
	165
	166	#ifndef EXIT_SUCCESS
	167	#define EXIT_SUCCESS 0
	168	#define EXIT_FAILURE 1
	169	#endif
	170
	171	#ifndef SEEK_SET
	172	#define SEEK_SET 0
	173	#endif
	174
	175	#define obstack_chunk_alloc xmalloc
	176	#define obstack_chunk_free xfree
	177
	178	#define xfree free
	179
	180	#include "asintl.h"
	181
	182	#define BAD_CASE(val) \
	183	{ \
	184	as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"), \
	185	(long) val, __LINE__, __FILE__); \
	186	}
	187	\f
	188	#include "flonum.h"
	189
	190	/* These are assembler-wide concepts */
	191
	192	extern bfd *stdoutput;
	193	typedef bfd_vma addressT;
	194	typedef bfd_signed_vma offsetT;
	195
	196	/* Type of symbol value, etc. For use in prototypes. */
	197	typedef addressT valueT;
	198
	199	#ifndef COMMON
	200	#ifdef TEST
	201	#define COMMON /* Declare our COMMONs storage here. */
	202	#else
	203	#define COMMON extern /* Our commons live elsewhere. */
	204	#endif
	205	#endif
	206	/* COMMON now defined */
	207
	208	#ifndef ENABLE_CHECKING
	209	#define ENABLE_CHECKING 0
	210	#endif
	211
	212	#if ENABLE_CHECKING \|\| defined (DEBUG)
	213	#ifndef know
	214	#define know(p) gas_assert(p) /* Verify our assumptions! */
	215	#endif /* not yet defined */
	216	#else
	217	#define know(p) do {} while (0) /* know() checks are no-op.ed */
	218	#endif
	219	\f
	220	/* input_scrub.c */
	221
	222	/* Supplies sanitised buffers to read.c.
	223	Also understands printing line-number part of error messages. */
	224	\f
	225	/* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
	226
	227	typedef asection *segT;
	228	#define SEG_NORMAL(SEG) ( (SEG) != absolute_section \
	229	&& (SEG) != undefined_section \
	230	&& (SEG) != reg_section \
	231	&& (SEG) != expr_section)
	232	typedef int subsegT;
	233
	234	/* What subseg we are accessing now? */
	235	COMMON subsegT now_subseg;
	236
	237	/* Segment our instructions emit to. */
	238	COMMON segT now_seg;
	239
	240	#define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
	241
	242	extern segT reg_section, expr_section;
	243	/* Shouldn't these be eliminated someday? */
	244	extern segT text_section, data_section, bss_section;
	245	#define absolute_section bfd_abs_section_ptr
	246	#define undefined_section bfd_und_section_ptr
	247
	248	enum _relax_state
	249	{
	250	/* Dummy frag used by listing code. */
	251	rs_dummy = 0,
	252
	253	/* Variable chars to be repeated fr_offset times.
	254	Fr_symbol unused. Used with fr_offset == 0 for a
	255	constant length frag. */
	256	rs_fill,
	257
	258	/* Align. The fr_offset field holds the power of 2 to which to
	259	align. The fr_var field holds the number of characters in the
	260	fill pattern. The fr_subtype field holds the maximum number of
	261	bytes to skip when aligning, or 0 if there is no maximum. */
	262	rs_align,
	263
	264	/* Align code. The fr_offset field holds the power of 2 to which
	265	to align. This type is only generated by machine specific
	266	code, which is normally responsible for handling the fill
	267	pattern. The fr_subtype field holds the maximum number of
	268	bytes to skip when aligning, or 0 if there is no maximum. */
	269	rs_align_code,
	270
	271	/* Test for alignment. Like rs_align, but used by several targets
	272	to warn if data is not properly aligned. */
	273	rs_align_test,
	274
	275	/* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
	276	character. */
	277	rs_org,
	278
	279	#ifndef WORKING_DOT_WORD
	280	/* JF: gunpoint */
	281	rs_broken_word,
	282	#endif
	283
	284	/* Machine specific relaxable (or similarly alterable) instruction. */
	285	rs_machine_dependent,
	286
	287	/* .space directive with expression operand that needs to be computed
	288	later. Similar to rs_org, but different.
	289	fr_symbol: operand
	290	1 variable char: fill character */
	291	rs_space,
	292
	293	/* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
	294	unsigned, 1 for signed. */
	295	rs_leb128,
	296
	297	/* Exception frame information which we may be able to optimize. */
	298	rs_cfa,
	299
	300	/* Cross-fragment dwarf2 line number optimization. */
	301	rs_dwarf2dbg
	302	};
	303
	304	typedef enum _relax_state relax_stateT;
	305
	306	/* This type is used in prototypes, so it can't be a type that will be
	307	widened for argument passing. */
	308	typedef unsigned int relax_substateT;
	309
	310	/* Enough bits for address, but still an integer type.
	311	Could be a problem, cross-assembling for 64-bit machines. */
	312	typedef addressT relax_addressT;
	313
	314	struct relax_type
	315	{
	316	/* Forward reach. Signed number. > 0. */
	317	offsetT rlx_forward;
	318	/* Backward reach. Signed number. < 0. */
	319	offsetT rlx_backward;
	320
	321	/* Bytes length of this address. */
	322	unsigned char rlx_length;
	323
	324	/* Next longer relax-state. 0 means there is no 'next' relax-state. */
	325	relax_substateT rlx_more;
	326	};
	327
	328	typedef struct relax_type relax_typeS;
	329	\f
	330	/* main program "as.c" (command arguments etc). */
	331
	332	COMMON unsigned char flag_no_comments; /* -f */
	333	COMMON unsigned char flag_debug; /* -D */
	334	COMMON unsigned char flag_signed_overflow_ok; /* -J */
	335	#ifndef WORKING_DOT_WORD
	336	COMMON unsigned char flag_warn_displacement; /* -K */
	337	#endif
	338
	339	/* True if local symbols should be retained. */
	340	COMMON int flag_keep_locals; /* -L */
	341
	342	/* True if we are assembling in MRI mode. */
	343	COMMON int flag_mri;
	344
	345	/* Should the data section be made read-only and appended to the text
	346	section? */
	347	COMMON unsigned char flag_readonly_data_in_text; /* -R */
	348
	349	/* True if warnings should be inhibited. */
	350	COMMON int flag_no_warnings; /* -W */
	351
	352	/* True if warnings count as errors. */
	353	COMMON int flag_fatal_warnings; /* --fatal-warnings */
	354
	355	/* True if we should attempt to generate output even if non-fatal errors
	356	are detected. */
	357	COMMON unsigned char flag_always_generate_output; /* -Z */
	358
	359	/* This is true if the assembler should output time and space usage. */
	360	COMMON unsigned char flag_print_statistics;
	361
	362	/* True if local absolute symbols are to be stripped. */
	363	COMMON int flag_strip_local_absolute;
	364
	365	/* True if we should generate a traditional format object file. */
	366	COMMON int flag_traditional_format;
	367
	368	/* TRUE if debug sections should be compressed. */
	369	COMMON int flag_compress_debug;
	370
	371	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	372	COMMON int flag_execstack;
	373
	374	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	375	COMMON int flag_noexecstack;
	376
	377	/* name of emitted object file */
	378	COMMON char *out_file_name;
	379
	380	/* name of file defining extensions to the basic instruction set */
	381	COMMON char *insttbl_file_name;
	382
	383	/* TRUE if we need a second pass. */
	384	COMMON int need_pass_2;
	385
	386	/* TRUE if we should do no relaxing, and
	387	leave lots of padding. */
	388	COMMON int linkrelax;
	389
	390	/* TRUE if we should produce a listing. */
	391	extern int listing;
	392
	393	/* Type of debugging information we should generate. We currently support
	394	stabs, ECOFF, and DWARF2.
	395
	396	NOTE! This means debug information about the assembly source code itself
	397	and _not_ about possible debug information from a high-level language.
	398	This is especially relevant to DWARF2, since the compiler may emit line
	399	number directives that the assembler resolves. */
	400
	401	enum debug_info_type
	402	{
	403	DEBUG_UNSPECIFIED,
	404	DEBUG_NONE,
	405	DEBUG_STABS,
	406	DEBUG_ECOFF,
	407	DEBUG_DWARF,
	408	DEBUG_DWARF2
	409	};
	410
	411	extern enum debug_info_type debug_type;
	412	extern int use_gnu_debug_info_extensions;
	413	\f
	414	/* Maximum level of macro nesting. */
	415	extern int max_macro_nest;
	416
	417	/* Verbosity level. */
	418	extern int verbose;
	419
	420	/* Obstack chunk size. Keep large for efficient space use, make small to
	421	increase malloc calls for monitoring memory allocation. */
	422	extern int chunksize;
	423
	424	struct _pseudo_type
	425	{
	426	/* assembler mnemonic, lower case, no '.' */
	427	const char *poc_name;
	428	/* Do the work */
	429	void (*poc_handler) (int);
	430	/* Value to pass to handler */
	431	int poc_val;
	432	};
	433
	434	typedef struct _pseudo_type pseudo_typeS;
	435
	436	#if (__GNUC__ >= 2) && !defined(VMS)
	437	/* for use with -Wformat */
	438
	439	#if __GNUC__ == 2 && __GNUC_MINOR__ < 6
	440	/* Support for double underscores in attribute names was added in gcc
	441	2.6, so avoid them if we are using an earlier version. */
	442	#define __printf__ printf
	443	#define __format__ format
	444	#endif
	445
	446	#define PRINTF_LIKE(FCN) \
	447	void FCN (const char *format, ...) \
	448	__attribute__ ((__format__ (__printf__, 1, 2)))
	449	#define PRINTF_WHERE_LIKE(FCN) \
	450	void FCN (char file, unsigned int line, const char format, ...) \
	451	__attribute__ ((__format__ (__printf__, 3, 4)))
	452
	453	#else /* __GNUC__ < 2 \|\| defined(VMS) */
	454
	455	#define PRINTF_LIKE(FCN) void FCN (const char *format, ...)
	456	#define PRINTF_WHERE_LIKE(FCN) void FCN (char *file, \
	457	unsigned int line, \
	458	const char *format, ...)
	459
	460	#endif /* __GNUC__ < 2 \|\| defined(VMS) */
	461
	462	PRINTF_LIKE (as_bad);
	463	PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
	464	PRINTF_LIKE (as_tsktsk);
	465	PRINTF_LIKE (as_warn);
	466	PRINTF_WHERE_LIKE (as_bad_where);
	467	PRINTF_WHERE_LIKE (as_warn_where);
	468
	469	void as_assert (const char , int, const char );
	470	void as_abort (const char , int, const char ) ATTRIBUTE_NORETURN;
	471	void sprint_value (char *, addressT);
	472	int had_errors (void);
	473	int had_warnings (void);
	474	void as_warn_value_out_of_range (char , offsetT, offsetT, offsetT, char , unsigned);
	475	void as_bad_value_out_of_range (char , offsetT, offsetT, offsetT, char , unsigned);
	476	void print_version_id (void);
	477	char * app_push (void);
	478	char * atof_ieee (char , int, LITTLENUM_TYPE );
	479	char * ieee_md_atof (int, char , int , bfd_boolean);
	480	char * vax_md_atof (int, char , int );
	481	char * input_scrub_include_file (char , char );
	482	void input_scrub_insert_line (const char *);
	483	void input_scrub_insert_file (char *);
	484	char * input_scrub_new_file (char *);
	485	char * input_scrub_next_buffer (char **bufp);
	486	int do_scrub_chars (int (get) (char , int), char *, int);
	487	int gen_to_words (LITTLENUM_TYPE *, int, long);
	488	int had_err (void);
	489	int ignore_input (void);
	490	void cond_finish_check (int);
	491	void cond_exit_macro (int);
	492	int seen_at_least_1_file (void);
	493	void app_pop (char *);
	494	void as_where (char *, unsigned int );
	495	void bump_line_counters (void);
	496	void do_scrub_begin (int);
	497	void input_scrub_begin (void);
	498	void input_scrub_close (void);
	499	void input_scrub_end (void);
	500	int new_logical_line (char *, int);
	501	int new_logical_line_flags (char *, int, int);
	502	void subsegs_begin (void);
	503	void subseg_change (segT, int);
	504	segT subseg_new (const char *, subsegT);
	505	segT subseg_force_new (const char *, subsegT);
	506	void subseg_set (segT, subsegT);
	507	int subseg_text_p (segT);
	508	int seg_not_empty_p (segT);
	509	void start_dependencies (char *);
	510	void register_dependency (char *);
	511	void print_dependencies (void);
	512	segT subseg_get (const char *, int);
	513
	514	const char remap_debug_filename (const char );
	515	void add_debug_prefix_map (const char *);
	516
	517	struct expressionS;
	518	struct fix;
	519	typedef struct symbol symbolS;
	520	typedef struct frag fragS;
	521
	522	/* literal.c */
	523	valueT add_to_literal_pool (symbolS *, valueT, segT, int);
	524
	525	int check_eh_frame (struct expressionS , unsigned int );
	526	int eh_frame_estimate_size_before_relax (fragS *);
	527	int eh_frame_relax_frag (fragS *);
	528	void eh_frame_convert_frag (fragS *);
	529	int generic_force_reloc (struct fix *);
	530
	531	#include "expr.h" /* Before targ-.h /
	532
	533	/* This one starts the chain of target dependant headers. */
	534	#include "targ-env.h"
	535
	536	#ifdef OBJ_MAYBE_ELF
	537	#define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
	538	#else
	539	#ifdef OBJ_ELF
	540	#define IS_ELF 1
	541	#else
	542	#define IS_ELF 0
	543	#endif
	544	#endif
	545
	546	#include "write.h"
	547	#include "frags.h"
	548	#include "hash.h"
	549	#include "read.h"
	550	#include "symbols.h"
	551
	552	#include "tc.h"
	553	#include "obj.h"
	554
	555	#ifdef USE_EMULATIONS
	556	#include "emul.h"
	557	#endif
	558	#include "listing.h"
	559
	560	#ifdef H_TICK_HEX
	561	extern int enable_h_tick_hex;
	562	#endif
	563
	564	#ifdef TC_M68K
	565	/* True if we are assembling in m68k MRI mode. */
	566	COMMON int flag_m68k_mri;
	567	#define DOLLAR_AMBIGU flag_m68k_mri
	568	#else
	569	#define flag_m68k_mri 0
	570	#endif
	571
	572	#ifdef WARN_COMMENTS
	573	COMMON int warn_comment;
	574	COMMON unsigned int found_comment;
	575	COMMON char * found_comment_file;
	576	#endif
	577
	578	#if defined OBJ_ELF \|\| defined OBJ_MAYBE_ELF
	579	/* If .size directive failure should be error or warning. */
	580	COMMON enum
	581	{
	582	size_check_error = 0,
	583	size_check_warning
	584	}
	585	flag_size_check;
	586	#endif
	587
	588	#ifndef DOLLAR_AMBIGU
	589	#define DOLLAR_AMBIGU 0
	590	#endif
	591
	592	#ifndef NUMBERS_WITH_SUFFIX
	593	#define NUMBERS_WITH_SUFFIX 0
	594	#endif
	595
	596	#ifndef LOCAL_LABELS_DOLLAR
	597	#define LOCAL_LABELS_DOLLAR 0
	598	#endif
	599
	600	#ifndef LOCAL_LABELS_FB
	601	#define LOCAL_LABELS_FB 0
	602	#endif
	603
	604	#ifndef LABELS_WITHOUT_COLONS
	605	#define LABELS_WITHOUT_COLONS 0
	606	#endif
	607
	608	#ifndef NO_PSEUDO_DOT
	609	#define NO_PSEUDO_DOT 0
	610	#endif
	611
	612	#ifndef TEXT_SECTION_NAME
	613	#define TEXT_SECTION_NAME ".text"
	614	#define DATA_SECTION_NAME ".data"
	615	#define BSS_SECTION_NAME ".bss"
	616	#endif
	617
	618	#ifndef OCTETS_PER_BYTE_POWER
	619	#define OCTETS_PER_BYTE_POWER 0
	620	#endif
	621	#ifndef OCTETS_PER_BYTE
	622	#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
	623	#endif
	624	#if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
	625	#error "Octets per byte conflicts with its power-of-two definition!"
	626	#endif
	627
	628	#endif /* GAS */