[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, 2012
   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/* I think this stuff is largely out of date.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 STRING_WITH_STRINGS
#include <string.h>
#include <strings.h>
#else
#ifdef HAVE_STRING_H
#include <string.h>
#else
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#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);
size_t do_scrub_chars (size_t (*get) (char *, size_t), char *, size_t);
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, 2012
	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
	46	#ifdef STRING_WITH_STRINGS
	47	#include <string.h>
	48	#include <strings.h>
	49	#else
	50	#ifdef HAVE_STRING_H
	51	#include <string.h>
	52	#else
	53	#ifdef HAVE_STRINGS_H
	54	#include <strings.h>
	55	#endif
	56	#endif
	57	#endif
	58
	59	#ifdef HAVE_STDLIB_H
	60	#include <stdlib.h>
	61	#endif
	62	#ifdef HAVE_UNISTD_H
	63	#include <unistd.h>
	64	#endif
	65	#ifdef HAVE_SYS_TYPES_H
	66	/* for size_t, pid_t */
	67	#include <sys/types.h>
	68	#endif
	69
	70	#ifdef HAVE_ERRNO_H
	71	#include <errno.h>
	72	#endif
	73
	74	#include <stdarg.h>
	75
	76	#include "getopt.h"
	77	/* The first getopt value for machine-independent long options.
	78	150 isn't special; it's just an arbitrary non-ASCII char value. */
	79	#define OPTION_STD_BASE 150
	80	/* The first getopt value for machine-dependent long options.
	81	190 gives the standard options room to grow. */
	82	#define OPTION_MD_BASE 190
	83
	84	#ifdef DEBUG
	85	#undef NDEBUG
	86	#endif
	87	#if __GNUC__ < 2 \|\| (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
	88	#define __PRETTY_FUNCTION__ ((char *) NULL)
	89	#endif
	90	#define gas_assert(P) \
	91	((void) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
	92	#undef abort
	93	#define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
	94
	95	/* Now GNU header files... */
	96	#include "ansidecl.h"
	97	#include "bfd.h"
	98	#include "libiberty.h"
	99
	100	/* Define the standard progress macros. */
	101	#include "progress.h"
	102
	103	/* This doesn't get taken care of anywhere. */
	104	#ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */
	105	#if !defined (__GNUC__) && !defined (inline)
	106	#define inline
	107	#endif
	108	#endif /* !__MWERKS__ */
	109
	110	/* Other stuff from config.h. */
	111	#ifdef NEED_DECLARATION_ENVIRON
	112	extern char **environ;
	113	#endif
	114	#ifdef NEED_DECLARATION_ERRNO
	115	extern int errno;
	116	#endif
	117	#ifdef NEED_DECLARATION_FFS
	118	extern int ffs (int);
	119	#endif
	120	#ifdef NEED_DECLARATION_FREE
	121	extern void free ();
	122	#endif
	123	#ifdef NEED_DECLARATION_MALLOC
	124	extern void *malloc ();
	125	extern void *realloc ();
	126	#endif
	127	#ifdef NEED_DECLARATION_STRSTR
	128	extern char *strstr ();
	129	#endif
	130
	131	#if !HAVE_DECL_MEMPCPY
	132	void mempcpy(void , const void *, size_t);
	133	#endif
	134
	135	#if !HAVE_DECL_VSNPRINTF
	136	extern int vsnprintf(char , size_t, const char , va_list);
	137	#endif
	138
	139	/* This is needed for VMS. */
	140	#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
	141	#define unlink remove
	142	#endif
	143
	144	/* Hack to make "gcc -Wall" not complain about obstack macros. */
	145	#if !defined (memcpy) && !defined (bcopy)
	146	#define bcopy(src,dest,size) memcpy (dest, src, size)
	147	#endif
	148
	149	/* Make Saber happier on obstack.h. */
	150	#ifdef SABER
	151	#undef __PTR_TO_INT
	152	#define __PTR_TO_INT(P) ((int) (P))
	153	#undef __INT_TO_PTR
	154	#define __INT_TO_PTR(P) ((char *) (P))
	155	#endif
	156
	157	#ifndef __LINE__
	158	#define __LINE__ "unknown"
	159	#endif /* __LINE__ */
	160
	161	#ifndef __FILE__
	162	#define __FILE__ "unknown"
	163	#endif /* __FILE__ */
	164
	165	#ifndef FOPEN_WB
	166	#ifdef USE_BINARY_FOPEN
	167	#include "fopen-bin.h"
	168	#else
	169	#include "fopen-same.h"
	170	#endif
	171	#endif
	172
	173	#ifndef EXIT_SUCCESS
	174	#define EXIT_SUCCESS 0
	175	#define EXIT_FAILURE 1
	176	#endif
	177
	178	#ifndef SEEK_SET
	179	#define SEEK_SET 0
	180	#endif
	181
	182	#define obstack_chunk_alloc xmalloc
	183	#define obstack_chunk_free xfree
	184
	185	#define xfree free
	186
	187	#include "asintl.h"
	188
	189	#define BAD_CASE(val) \
	190	{ \
	191	as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"), \
	192	(long) val, __LINE__, __FILE__); \
	193	}
	194	\f
	195	#include "flonum.h"
	196
	197	/* These are assembler-wide concepts */
	198
	199	extern bfd *stdoutput;
	200	typedef bfd_vma addressT;
	201	typedef bfd_signed_vma offsetT;
	202
	203	/* Type of symbol value, etc. For use in prototypes. */
	204	typedef addressT valueT;
	205
	206	#ifndef COMMON
	207	#ifdef TEST
	208	#define COMMON /* Declare our COMMONs storage here. */
	209	#else
	210	#define COMMON extern /* Our commons live elsewhere. */
	211	#endif
	212	#endif
	213	/* COMMON now defined */
	214
	215	#ifndef ENABLE_CHECKING
	216	#define ENABLE_CHECKING 0
	217	#endif
	218
	219	#if ENABLE_CHECKING \|\| defined (DEBUG)
	220	#ifndef know
	221	#define know(p) gas_assert(p) /* Verify our assumptions! */
	222	#endif /* not yet defined */
	223	#else
	224	#define know(p) do {} while (0) /* know() checks are no-op.ed */
	225	#endif
	226	\f
	227	/* input_scrub.c */
	228
	229	/* Supplies sanitised buffers to read.c.
	230	Also understands printing line-number part of error messages. */
	231	\f
	232	/* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
	233
	234	typedef asection *segT;
	235	#define SEG_NORMAL(SEG) ( (SEG) != absolute_section \
	236	&& (SEG) != undefined_section \
	237	&& (SEG) != reg_section \
	238	&& (SEG) != expr_section)
	239	typedef int subsegT;
	240
	241	/* What subseg we are accessing now? */
	242	COMMON subsegT now_subseg;
	243
	244	/* Segment our instructions emit to. */
	245	COMMON segT now_seg;
	246
	247	#define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
	248
	249	extern segT reg_section, expr_section;
	250	/* Shouldn't these be eliminated someday? */
	251	extern segT text_section, data_section, bss_section;
	252	#define absolute_section bfd_abs_section_ptr
	253	#define undefined_section bfd_und_section_ptr
	254
	255	enum _relax_state
	256	{
	257	/* Dummy frag used by listing code. */
	258	rs_dummy = 0,
	259
	260	/* Variable chars to be repeated fr_offset times.
	261	Fr_symbol unused. Used with fr_offset == 0 for a
	262	constant length frag. */
	263	rs_fill,
	264
	265	/* Align. The fr_offset field holds the power of 2 to which to
	266	align. The fr_var field holds the number of characters in the
	267	fill 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,
	270
	271	/* Align code. The fr_offset field holds the power of 2 to which
	272	to align. This type is only generated by machine specific
	273	code, which is normally responsible for handling the fill
	274	pattern. The fr_subtype field holds the maximum number of
	275	bytes to skip when aligning, or 0 if there is no maximum. */
	276	rs_align_code,
	277
	278	/* Test for alignment. Like rs_align, but used by several targets
	279	to warn if data is not properly aligned. */
	280	rs_align_test,
	281
	282	/* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
	283	character. */
	284	rs_org,
	285
	286	#ifndef WORKING_DOT_WORD
	287	/* JF: gunpoint */
	288	rs_broken_word,
	289	#endif
	290
	291	/* Machine specific relaxable (or similarly alterable) instruction. */
	292	rs_machine_dependent,
	293
	294	/* .space directive with expression operand that needs to be computed
	295	later. Similar to rs_org, but different.
	296	fr_symbol: operand
	297	1 variable char: fill character */
	298	rs_space,
	299
	300	/* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
	301	unsigned, 1 for signed. */
	302	rs_leb128,
	303
	304	/* Exception frame information which we may be able to optimize. */
	305	rs_cfa,
	306
	307	/* Cross-fragment dwarf2 line number optimization. */
	308	rs_dwarf2dbg
	309	};
	310
	311	typedef enum _relax_state relax_stateT;
	312
	313	/* This type is used in prototypes, so it can't be a type that will be
	314	widened for argument passing. */
	315	typedef unsigned int relax_substateT;
	316
	317	/* Enough bits for address, but still an integer type.
	318	Could be a problem, cross-assembling for 64-bit machines. */
	319	typedef addressT relax_addressT;
	320
	321	struct relax_type
	322	{
	323	/* Forward reach. Signed number. > 0. */
	324	offsetT rlx_forward;
	325	/* Backward reach. Signed number. < 0. */
	326	offsetT rlx_backward;
	327
	328	/* Bytes length of this address. */
	329	unsigned char rlx_length;
	330
	331	/* Next longer relax-state. 0 means there is no 'next' relax-state. */
	332	relax_substateT rlx_more;
	333	};
	334
	335	typedef struct relax_type relax_typeS;
	336	\f
	337	/* main program "as.c" (command arguments etc). */
	338
	339	COMMON unsigned char flag_no_comments; /* -f */
	340	COMMON unsigned char flag_debug; /* -D */
	341	COMMON unsigned char flag_signed_overflow_ok; /* -J */
	342	#ifndef WORKING_DOT_WORD
	343	COMMON unsigned char flag_warn_displacement; /* -K */
	344	#endif
	345
	346	/* True if local symbols should be retained. */
	347	COMMON int flag_keep_locals; /* -L */
	348
	349	/* True if we are assembling in MRI mode. */
	350	COMMON int flag_mri;
	351
	352	/* Should the data section be made read-only and appended to the text
	353	section? */
	354	COMMON unsigned char flag_readonly_data_in_text; /* -R */
	355
	356	/* True if warnings should be inhibited. */
	357	COMMON int flag_no_warnings; /* -W */
	358
	359	/* True if warnings count as errors. */
	360	COMMON int flag_fatal_warnings; /* --fatal-warnings */
	361
	362	/* True if we should attempt to generate output even if non-fatal errors
	363	are detected. */
	364	COMMON unsigned char flag_always_generate_output; /* -Z */
	365
	366	/* This is true if the assembler should output time and space usage. */
	367	COMMON unsigned char flag_print_statistics;
	368
	369	/* True if local absolute symbols are to be stripped. */
	370	COMMON int flag_strip_local_absolute;
	371
	372	/* True if we should generate a traditional format object file. */
	373	COMMON int flag_traditional_format;
	374
	375	/* TRUE if debug sections should be compressed. */
	376	COMMON int flag_compress_debug;
	377
	378	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	379	COMMON int flag_execstack;
	380
	381	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	382	COMMON int flag_noexecstack;
	383
	384	/* name of emitted object file */
	385	COMMON char *out_file_name;
	386
	387	/* name of file defining extensions to the basic instruction set */
	388	COMMON char *insttbl_file_name;
	389
	390	/* TRUE if we need a second pass. */
	391	COMMON int need_pass_2;
	392
	393	/* TRUE if we should do no relaxing, and
	394	leave lots of padding. */
	395	COMMON int linkrelax;
	396
	397	/* TRUE if we should produce a listing. */
	398	extern int listing;
	399
	400	/* Type of debugging information we should generate. We currently support
	401	stabs, ECOFF, and DWARF2.
	402
	403	NOTE! This means debug information about the assembly source code itself
	404	and _not_ about possible debug information from a high-level language.
	405	This is especially relevant to DWARF2, since the compiler may emit line
	406	number directives that the assembler resolves. */
	407
	408	enum debug_info_type
	409	{
	410	DEBUG_UNSPECIFIED,
	411	DEBUG_NONE,
	412	DEBUG_STABS,
	413	DEBUG_ECOFF,
	414	DEBUG_DWARF,
	415	DEBUG_DWARF2
	416	};
	417
	418	extern enum debug_info_type debug_type;
	419	extern int use_gnu_debug_info_extensions;
	420	\f
	421	/* Maximum level of macro nesting. */
	422	extern int max_macro_nest;
	423
	424	/* Verbosity level. */
	425	extern int verbose;
	426
	427	/* Obstack chunk size. Keep large for efficient space use, make small to
	428	increase malloc calls for monitoring memory allocation. */
	429	extern int chunksize;
	430
	431	struct _pseudo_type
	432	{
	433	/* assembler mnemonic, lower case, no '.' */
	434	const char *poc_name;
	435	/* Do the work */
	436	void (*poc_handler) (int);
	437	/* Value to pass to handler */
	438	int poc_val;
	439	};
	440
	441	typedef struct _pseudo_type pseudo_typeS;
	442
	443	#if (__GNUC__ >= 2) && !defined(VMS)
	444	/* for use with -Wformat */
	445
	446	#if __GNUC__ == 2 && __GNUC_MINOR__ < 6
	447	/* Support for double underscores in attribute names was added in gcc
	448	2.6, so avoid them if we are using an earlier version. */
	449	#define __printf__ printf
	450	#define __format__ format
	451	#endif
	452
	453	#define PRINTF_LIKE(FCN) \
	454	void FCN (const char *format, ...) \
	455	__attribute__ ((__format__ (__printf__, 1, 2)))
	456	#define PRINTF_WHERE_LIKE(FCN) \
	457	void FCN (char file, unsigned int line, const char format, ...) \
	458	__attribute__ ((__format__ (__printf__, 3, 4)))
	459
	460	#else /* __GNUC__ < 2 \|\| defined(VMS) */
	461
	462	#define PRINTF_LIKE(FCN) void FCN (const char *format, ...)
	463	#define PRINTF_WHERE_LIKE(FCN) void FCN (char *file, \
	464	unsigned int line, \
	465	const char *format, ...)
	466
	467	#endif /* __GNUC__ < 2 \|\| defined(VMS) */
	468
	469	PRINTF_LIKE (as_bad);
	470	PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
	471	PRINTF_LIKE (as_tsktsk);
	472	PRINTF_LIKE (as_warn);
	473	PRINTF_WHERE_LIKE (as_bad_where);
	474	PRINTF_WHERE_LIKE (as_warn_where);
	475
	476	void as_assert (const char , int, const char );
	477	void as_abort (const char , int, const char ) ATTRIBUTE_NORETURN;
	478	void sprint_value (char *, addressT);
	479	int had_errors (void);
	480	int had_warnings (void);
	481	void as_warn_value_out_of_range (char , offsetT, offsetT, offsetT, char , unsigned);
	482	void as_bad_value_out_of_range (char , offsetT, offsetT, offsetT, char , unsigned);
	483	void print_version_id (void);
	484	char * app_push (void);
	485	char * atof_ieee (char , int, LITTLENUM_TYPE );
	486	char * ieee_md_atof (int, char , int , bfd_boolean);
	487	char * vax_md_atof (int, char , int );
	488	char * input_scrub_include_file (char , char );
	489	void input_scrub_insert_line (const char *);
	490	void input_scrub_insert_file (char *);
	491	char * input_scrub_new_file (char *);
	492	char * input_scrub_next_buffer (char **bufp);
	493	size_t do_scrub_chars (size_t (get) (char , size_t), char *, size_t);
	494	int gen_to_words (LITTLENUM_TYPE *, int, long);
	495	int had_err (void);
	496	int ignore_input (void);
	497	void cond_finish_check (int);
	498	void cond_exit_macro (int);
	499	int seen_at_least_1_file (void);
	500	void app_pop (char *);
	501	void as_where (char *, unsigned int );
	502	void bump_line_counters (void);
	503	void do_scrub_begin (int);
	504	void input_scrub_begin (void);
	505	void input_scrub_close (void);
	506	void input_scrub_end (void);
	507	int new_logical_line (char *, int);
	508	int new_logical_line_flags (char *, int, int);
	509	void subsegs_begin (void);
	510	void subseg_change (segT, int);
	511	segT subseg_new (const char *, subsegT);
	512	segT subseg_force_new (const char *, subsegT);
	513	void subseg_set (segT, subsegT);
	514	int subseg_text_p (segT);
	515	int seg_not_empty_p (segT);
	516	void start_dependencies (char *);
	517	void register_dependency (char *);
	518	void print_dependencies (void);
	519	segT subseg_get (const char *, int);
	520
	521	const char remap_debug_filename (const char );
	522	void add_debug_prefix_map (const char *);
	523
	524	struct expressionS;
	525	struct fix;
	526	typedef struct symbol symbolS;
	527	typedef struct frag fragS;
	528
	529	/* literal.c */
	530	valueT add_to_literal_pool (symbolS *, valueT, segT, int);
	531
	532	int check_eh_frame (struct expressionS , unsigned int );
	533	int eh_frame_estimate_size_before_relax (fragS *);
	534	int eh_frame_relax_frag (fragS *);
	535	void eh_frame_convert_frag (fragS *);
	536	int generic_force_reloc (struct fix *);
	537
	538	#include "expr.h" /* Before targ-.h /
	539
	540	/* This one starts the chain of target dependant headers. */
	541	#include "targ-env.h"
	542
	543	#ifdef OBJ_MAYBE_ELF
	544	#define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
	545	#else
	546	#ifdef OBJ_ELF
	547	#define IS_ELF 1
	548	#else
	549	#define IS_ELF 0
	550	#endif
	551	#endif
	552
	553	#include "write.h"
	554	#include "frags.h"
	555	#include "hash.h"
	556	#include "read.h"
	557	#include "symbols.h"
	558
	559	#include "tc.h"
	560	#include "obj.h"
	561
	562	#ifdef USE_EMULATIONS
	563	#include "emul.h"
	564	#endif
	565	#include "listing.h"
	566
	567	#ifdef H_TICK_HEX
	568	extern int enable_h_tick_hex;
	569	#endif
	570
	571	#ifdef TC_M68K
	572	/* True if we are assembling in m68k MRI mode. */
	573	COMMON int flag_m68k_mri;
	574	#define DOLLAR_AMBIGU flag_m68k_mri
	575	#else
	576	#define flag_m68k_mri 0
	577	#endif
	578
	579	#ifdef WARN_COMMENTS
	580	COMMON int warn_comment;
	581	COMMON unsigned int found_comment;
	582	COMMON char * found_comment_file;
	583	#endif
	584
	585	#if defined OBJ_ELF \|\| defined OBJ_MAYBE_ELF
	586	/* If .size directive failure should be error or warning. */
	587	COMMON enum
	588	{
	589	size_check_error = 0,
	590	size_check_warning
	591	}
	592	flag_size_check;
	593	#endif
	594
	595	#ifndef DOLLAR_AMBIGU
	596	#define DOLLAR_AMBIGU 0
	597	#endif
	598
	599	#ifndef NUMBERS_WITH_SUFFIX
	600	#define NUMBERS_WITH_SUFFIX 0
	601	#endif
	602
	603	#ifndef LOCAL_LABELS_DOLLAR
	604	#define LOCAL_LABELS_DOLLAR 0
	605	#endif
	606
	607	#ifndef LOCAL_LABELS_FB
	608	#define LOCAL_LABELS_FB 0
	609	#endif
	610
	611	#ifndef LABELS_WITHOUT_COLONS
	612	#define LABELS_WITHOUT_COLONS 0
	613	#endif
	614
	615	#ifndef NO_PSEUDO_DOT
	616	#define NO_PSEUDO_DOT 0
	617	#endif
	618
	619	#ifndef TEXT_SECTION_NAME
	620	#define TEXT_SECTION_NAME ".text"
	621	#define DATA_SECTION_NAME ".data"
	622	#define BSS_SECTION_NAME ".bss"
	623	#endif
	624
	625	#ifndef OCTETS_PER_BYTE_POWER
	626	#define OCTETS_PER_BYTE_POWER 0
	627	#endif
	628	#ifndef OCTETS_PER_BYTE
	629	#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
	630	#endif
	631	#if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
	632	#error "Octets per byte conflicts with its power-of-two definition!"
	633	#endif
	634
	635	#endif /* GAS */