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

/* as.h - global header file
   Copyright (C) 1987-2016 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/* I think this stuff is largely out of date.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.
   290 gives the standard options room to grow.  */
#define OPTION_MD_BASE  290

#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"

/* 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

#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;

/* Type of compressed debug sections we should generate.   */
COMMON enum compressed_debug_section_type 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 const 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;

COMMON int do_not_pad_sections_to_alignment;

/* 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;
COMMON bfd_boolean flag_dwarf_sections;
\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 (const 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 (const 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 *) ATTRIBUTE_NORETURN;
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 (const char *, offsetT, offsetT, offsetT,
				   const char *, unsigned);
void   as_bad_value_out_of_range (const char *, offsetT, offsetT, offsetT,
				  const char *, unsigned);
void   print_version_id (void);
char * app_push (void);
char * atof_ieee (char *, int, LITTLENUM_TYPE *);
const char * ieee_md_atof (int, char *, int *, bfd_boolean);
const char * vax_md_atof (int, char *, int *);
char * input_scrub_include_file (const char *, char *);
void   input_scrub_insert_line (const char *);
void   input_scrub_insert_file (char *);
char * input_scrub_new_file (const 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 *);
const char * as_where (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 (const char *, int);
int    new_logical_line_flags (const 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 (const 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 *);

static inline char *
xmemdup0 (const char *in, size_t len)
{
  char *out = (char *) xmalloc (len + 1);
  out[len] = 0;
  return (char *) memcpy (out, in, len);
}

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 const char *        found_comment_file;
#endif

#if defined OBJ_ELF || defined OBJ_MAYBE_ELF
/* If .size directive failure should be error or warning.  */
COMMON int flag_allow_nonconst_size;

/* If we should generate ELF common symbols with the STT_COMMON type.  */
extern int flag_use_elf_stt_common;

/* If section name substitution sequences should be honored */
COMMON int flag_sectname_subst;
#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 (C) 1987-2016 Free Software Foundation, Inc.
	3
	4	This file is part of GAS, the GNU Assembler.
	5
	6	GAS is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 3, or (at your option)
	9	any later version.
	10
	11	GAS is distributed in the hope that it will be useful, but WITHOUT
	12	ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	13	or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
	14	License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GAS; see the file COPYING. If not, write to the Free
	18	Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
	19	02110-1301, USA. */
	20
	21	#ifndef GAS
	22	#define GAS 1
	23	/* I think this stuff is largely out of date. xoxorich.
	24
	25	CAPITALISED names are #defined.
	26	"lowercaseH" is #defined if "lowercase.h" has been #include-d.
	27	"lowercaseT" is a typedef of "lowercase" objects.
	28	"lowercaseP" is type "pointer to object of type 'lowercase'".
	29	"lowercaseS" is typedef struct ... lowercaseS.
	30
	31	#define DEBUG to enable all the "know" assertion tests.
	32	#define SUSPECT when debugging hash code.
	33	#define COMMON as "extern" for all modules except one, where you #define
	34	COMMON as "".
	35	If TEST is #defined, then we are testing a module: #define COMMON as "". */
	36
	37	#include "alloca-conf.h"
	38
	39	/* Now, tend to the rest of the configuration. */
	40
	41	/* System include files first... */
	42	#include <stdio.h>
	43
	44	#ifdef STRING_WITH_STRINGS
	45	#include <string.h>
	46	#include <strings.h>
	47	#else
	48	#ifdef HAVE_STRING_H
	49	#include <string.h>
	50	#else
	51	#ifdef HAVE_STRINGS_H
	52	#include <strings.h>
	53	#endif
	54	#endif
	55	#endif
	56
	57	#ifdef HAVE_STDLIB_H
	58	#include <stdlib.h>
	59	#endif
	60	#ifdef HAVE_UNISTD_H
	61	#include <unistd.h>
	62	#endif
	63	#ifdef HAVE_SYS_TYPES_H
	64	/* for size_t, pid_t */
	65	#include <sys/types.h>
	66	#endif
	67
	68	#ifdef HAVE_ERRNO_H
	69	#include <errno.h>
	70	#endif
	71
	72	#include <stdarg.h>
	73
	74	#include "getopt.h"
	75	/* The first getopt value for machine-independent long options.
	76	150 isn't special; it's just an arbitrary non-ASCII char value. */
	77	#define OPTION_STD_BASE 150
	78	/* The first getopt value for machine-dependent long options.
	79	290 gives the standard options room to grow. */
	80	#define OPTION_MD_BASE 290
	81
	82	#ifdef DEBUG
	83	#undef NDEBUG
	84	#endif
	85	#if __GNUC__ < 2 \|\| (__GNUC__ == 2 && __GNUC_MINOR__ < 6)
	86	#define __PRETTY_FUNCTION__ ((char *) NULL)
	87	#endif
	88	#define gas_assert(P) \
	89	((void) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0)))
	90	#undef abort
	91	#define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
	92
	93	/* Now GNU header files... */
	94	#include "ansidecl.h"
	95	#include "bfd.h"
	96	#include "libiberty.h"
	97
	98	/* Define the standard progress macros. */
	99	#include "progress.h"
	100
	101	/* Other stuff from config.h. */
	102	#ifdef NEED_DECLARATION_ENVIRON
	103	extern char **environ;
	104	#endif
	105	#ifdef NEED_DECLARATION_ERRNO
	106	extern int errno;
	107	#endif
	108	#ifdef NEED_DECLARATION_FFS
	109	extern int ffs (int);
	110	#endif
	111	#ifdef NEED_DECLARATION_FREE
	112	extern void free ();
	113	#endif
	114	#ifdef NEED_DECLARATION_MALLOC
	115	extern void *malloc ();
	116	extern void *realloc ();
	117	#endif
	118	#ifdef NEED_DECLARATION_STRSTR
	119	extern char *strstr ();
	120	#endif
	121
	122	#if !HAVE_DECL_MEMPCPY
	123	void mempcpy(void , const void *, size_t);
	124	#endif
	125
	126	#if !HAVE_DECL_VSNPRINTF
	127	extern int vsnprintf(char , size_t, const char , va_list);
	128	#endif
	129
	130	/* This is needed for VMS. */
	131	#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
	132	#define unlink remove
	133	#endif
	134
	135	/* Hack to make "gcc -Wall" not complain about obstack macros. */
	136	#if !defined (memcpy) && !defined (bcopy)
	137	#define bcopy(src,dest,size) memcpy (dest, src, size)
	138	#endif
	139
	140	#ifndef __LINE__
	141	#define __LINE__ "unknown"
	142	#endif /* __LINE__ */
	143
	144	#ifndef __FILE__
	145	#define __FILE__ "unknown"
	146	#endif /* __FILE__ */
	147
	148	#ifndef FOPEN_WB
	149	#ifdef USE_BINARY_FOPEN
	150	#include "fopen-bin.h"
	151	#else
	152	#include "fopen-same.h"
	153	#endif
	154	#endif
	155
	156	#ifndef EXIT_SUCCESS
	157	#define EXIT_SUCCESS 0
	158	#define EXIT_FAILURE 1
	159	#endif
	160
	161	#ifndef SEEK_SET
	162	#define SEEK_SET 0
	163	#endif
	164
	165	#define obstack_chunk_alloc xmalloc
	166	#define obstack_chunk_free xfree
	167
	168	#define xfree free
	169
	170	#include "asintl.h"
	171
	172	#define BAD_CASE(val) \
	173	{ \
	174	as_fatal (_("Case value %ld unexpected at line %d of file \"%s\"\n"), \
	175	(long) val, __LINE__, __FILE__); \
	176	}
	177	\f
	178	#include "flonum.h"
	179
	180	/* These are assembler-wide concepts */
	181
	182	extern bfd *stdoutput;
	183	typedef bfd_vma addressT;
	184	typedef bfd_signed_vma offsetT;
	185
	186	/* Type of symbol value, etc. For use in prototypes. */
	187	typedef addressT valueT;
	188
	189	#ifndef COMMON
	190	#ifdef TEST
	191	#define COMMON /* Declare our COMMONs storage here. */
	192	#else
	193	#define COMMON extern /* Our commons live elsewhere. */
	194	#endif
	195	#endif
	196	/* COMMON now defined */
	197
	198	#ifndef ENABLE_CHECKING
	199	#define ENABLE_CHECKING 0
	200	#endif
	201
	202	#if ENABLE_CHECKING \|\| defined (DEBUG)
	203	#ifndef know
	204	#define know(p) gas_assert(p) /* Verify our assumptions! */
	205	#endif /* not yet defined */
	206	#else
	207	#define know(p) do {} while (0) /* know() checks are no-op.ed */
	208	#endif
	209	\f
	210	/* input_scrub.c */
	211
	212	/* Supplies sanitised buffers to read.c.
	213	Also understands printing line-number part of error messages. */
	214	\f
	215	/* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
	216
	217	typedef asection *segT;
	218	#define SEG_NORMAL(SEG) ( (SEG) != absolute_section \
	219	&& (SEG) != undefined_section \
	220	&& (SEG) != reg_section \
	221	&& (SEG) != expr_section)
	222	typedef int subsegT;
	223
	224	/* What subseg we are accessing now? */
	225	COMMON subsegT now_subseg;
	226
	227	/* Segment our instructions emit to. */
	228	COMMON segT now_seg;
	229
	230	#define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
	231
	232	extern segT reg_section, expr_section;
	233	/* Shouldn't these be eliminated someday? */
	234	extern segT text_section, data_section, bss_section;
	235	#define absolute_section bfd_abs_section_ptr
	236	#define undefined_section bfd_und_section_ptr
	237
	238	enum _relax_state
	239	{
	240	/* Dummy frag used by listing code. */
	241	rs_dummy = 0,
	242
	243	/* Variable chars to be repeated fr_offset times.
	244	Fr_symbol unused. Used with fr_offset == 0 for a
	245	constant length frag. */
	246	rs_fill,
	247
	248	/* Align. The fr_offset field holds the power of 2 to which to
	249	align. The fr_var field holds the number of characters in the
	250	fill pattern. The fr_subtype field holds the maximum number of
	251	bytes to skip when aligning, or 0 if there is no maximum. */
	252	rs_align,
	253
	254	/* Align code. The fr_offset field holds the power of 2 to which
	255	to align. This type is only generated by machine specific
	256	code, which is normally responsible for handling the fill
	257	pattern. The fr_subtype field holds the maximum number of
	258	bytes to skip when aligning, or 0 if there is no maximum. */
	259	rs_align_code,
	260
	261	/* Test for alignment. Like rs_align, but used by several targets
	262	to warn if data is not properly aligned. */
	263	rs_align_test,
	264
	265	/* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
	266	character. */
	267	rs_org,
	268
	269	#ifndef WORKING_DOT_WORD
	270	/* JF: gunpoint */
	271	rs_broken_word,
	272	#endif
	273
	274	/* Machine specific relaxable (or similarly alterable) instruction. */
	275	rs_machine_dependent,
	276
	277	/* .space directive with expression operand that needs to be computed
	278	later. Similar to rs_org, but different.
	279	fr_symbol: operand
	280	1 variable char: fill character */
	281	rs_space,
	282
	283	/* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
	284	unsigned, 1 for signed. */
	285	rs_leb128,
	286
	287	/* Exception frame information which we may be able to optimize. */
	288	rs_cfa,
	289
	290	/* Cross-fragment dwarf2 line number optimization. */
	291	rs_dwarf2dbg
	292	};
	293
	294	typedef enum _relax_state relax_stateT;
	295
	296	/* This type is used in prototypes, so it can't be a type that will be
	297	widened for argument passing. */
	298	typedef unsigned int relax_substateT;
	299
	300	/* Enough bits for address, but still an integer type.
	301	Could be a problem, cross-assembling for 64-bit machines. */
	302	typedef addressT relax_addressT;
	303
	304	struct relax_type
	305	{
	306	/* Forward reach. Signed number. > 0. */
	307	offsetT rlx_forward;
	308	/* Backward reach. Signed number. < 0. */
	309	offsetT rlx_backward;
	310
	311	/* Bytes length of this address. */
	312	unsigned char rlx_length;
	313
	314	/* Next longer relax-state. 0 means there is no 'next' relax-state. */
	315	relax_substateT rlx_more;
	316	};
	317
	318	typedef struct relax_type relax_typeS;
	319	\f
	320	/* main program "as.c" (command arguments etc). */
	321
	322	COMMON unsigned char flag_no_comments; /* -f */
	323	COMMON unsigned char flag_debug; /* -D */
	324	COMMON unsigned char flag_signed_overflow_ok; /* -J */
	325	#ifndef WORKING_DOT_WORD
	326	COMMON unsigned char flag_warn_displacement; /* -K */
	327	#endif
	328
	329	/* True if local symbols should be retained. */
	330	COMMON int flag_keep_locals; /* -L */
	331
	332	/* True if we are assembling in MRI mode. */
	333	COMMON int flag_mri;
	334
	335	/* Should the data section be made read-only and appended to the text
	336	section? */
	337	COMMON unsigned char flag_readonly_data_in_text; /* -R */
	338
	339	/* True if warnings should be inhibited. */
	340	COMMON int flag_no_warnings; /* -W */
	341
	342	/* True if warnings count as errors. */
	343	COMMON int flag_fatal_warnings; /* --fatal-warnings */
	344
	345	/* True if we should attempt to generate output even if non-fatal errors
	346	are detected. */
	347	COMMON unsigned char flag_always_generate_output; /* -Z */
	348
	349	/* This is true if the assembler should output time and space usage. */
	350	COMMON unsigned char flag_print_statistics;
	351
	352	/* True if local absolute symbols are to be stripped. */
	353	COMMON int flag_strip_local_absolute;
	354
	355	/* True if we should generate a traditional format object file. */
	356	COMMON int flag_traditional_format;
	357
	358	/* Type of compressed debug sections we should generate. */
	359	COMMON enum compressed_debug_section_type flag_compress_debug;
	360
	361	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	362	COMMON int flag_execstack;
	363
	364	/* TRUE if .note.GNU-stack section with SEC_CODE should be created */
	365	COMMON int flag_noexecstack;
	366
	367	/* name of emitted object file */
	368	COMMON const char *out_file_name;
	369
	370	/* name of file defining extensions to the basic instruction set */
	371	COMMON char *insttbl_file_name;
	372
	373	/* TRUE if we need a second pass. */
	374	COMMON int need_pass_2;
	375
	376	/* TRUE if we should do no relaxing, and
	377	leave lots of padding. */
	378	COMMON int linkrelax;
	379
	380	COMMON int do_not_pad_sections_to_alignment;
	381
	382	/* TRUE if we should produce a listing. */
	383	extern int listing;
	384
	385	/* Type of debugging information we should generate. We currently support
	386	stabs, ECOFF, and DWARF2.
	387
	388	NOTE! This means debug information about the assembly source code itself
	389	and _not_ about possible debug information from a high-level language.
	390	This is especially relevant to DWARF2, since the compiler may emit line
	391	number directives that the assembler resolves. */
	392
	393	enum debug_info_type
	394	{
	395	DEBUG_UNSPECIFIED,
	396	DEBUG_NONE,
	397	DEBUG_STABS,
	398	DEBUG_ECOFF,
	399	DEBUG_DWARF,
	400	DEBUG_DWARF2
	401	};
	402
	403	extern enum debug_info_type debug_type;
	404	extern int use_gnu_debug_info_extensions;
	405	COMMON bfd_boolean flag_dwarf_sections;
	406	\f
	407	/* Maximum level of macro nesting. */
	408	extern int max_macro_nest;
	409
	410	/* Verbosity level. */
	411	extern int verbose;
	412
	413	/* Obstack chunk size. Keep large for efficient space use, make small to
	414	increase malloc calls for monitoring memory allocation. */
	415	extern int chunksize;
	416
	417	struct _pseudo_type
	418	{
	419	/* assembler mnemonic, lower case, no '.' */
	420	const char *poc_name;
	421	/* Do the work */
	422	void (*poc_handler) (int);
	423	/* Value to pass to handler */
	424	int poc_val;
	425	};
	426
	427	typedef struct _pseudo_type pseudo_typeS;
	428
	429	#if (__GNUC__ >= 2) && !defined(VMS)
	430	/* for use with -Wformat */
	431
	432	#if __GNUC__ == 2 && __GNUC_MINOR__ < 6
	433	/* Support for double underscores in attribute names was added in gcc
	434	2.6, so avoid them if we are using an earlier version. */
	435	#define __printf__ printf
	436	#define __format__ format
	437	#endif
	438
	439	#define PRINTF_LIKE(FCN) \
	440	void FCN (const char *format, ...) \
	441	__attribute__ ((__format__ (__printf__, 1, 2)))
	442	#define PRINTF_WHERE_LIKE(FCN) \
	443	void FCN (const char file, unsigned int line, const char format, ...) \
	444	__attribute__ ((__format__ (__printf__, 3, 4)))
	445
	446	#else /* __GNUC__ < 2 \|\| defined(VMS) */
	447
	448	#define PRINTF_LIKE(FCN) void FCN (const char *format, ...)
	449	#define PRINTF_WHERE_LIKE(FCN) void FCN (const char *file, \
	450	unsigned int line, \
	451	const char *format, ...)
	452
	453	#endif /* __GNUC__ < 2 \|\| defined(VMS) */
	454
	455	PRINTF_LIKE (as_bad);
	456	PRINTF_LIKE (as_fatal) ATTRIBUTE_NORETURN;
	457	PRINTF_LIKE (as_tsktsk);
	458	PRINTF_LIKE (as_warn);
	459	PRINTF_WHERE_LIKE (as_bad_where);
	460	PRINTF_WHERE_LIKE (as_warn_where);
	461
	462	void as_assert (const char , int, const char ) ATTRIBUTE_NORETURN;
	463	void as_abort (const char , int, const char ) ATTRIBUTE_NORETURN;
	464	void sprint_value (char *, addressT);
	465	int had_errors (void);
	466	int had_warnings (void);
	467	void as_warn_value_out_of_range (const char *, offsetT, offsetT, offsetT,
	468	const char *, unsigned);
	469	void as_bad_value_out_of_range (const char *, offsetT, offsetT, offsetT,
	470	const char *, unsigned);
	471	void print_version_id (void);
	472	char * app_push (void);
	473	char * atof_ieee (char , int, LITTLENUM_TYPE );
	474	const char * ieee_md_atof (int, char , int , bfd_boolean);
	475	const char * vax_md_atof (int, char , int );
	476	char * input_scrub_include_file (const char , char );
	477	void input_scrub_insert_line (const char *);
	478	void input_scrub_insert_file (char *);
	479	char * input_scrub_new_file (const char *);
	480	char * input_scrub_next_buffer (char **bufp);
	481	size_t do_scrub_chars (size_t (get) (char , size_t), char *, size_t);
	482	int gen_to_words (LITTLENUM_TYPE *, int, long);
	483	int had_err (void);
	484	int ignore_input (void);
	485	void cond_finish_check (int);
	486	void cond_exit_macro (int);
	487	int seen_at_least_1_file (void);
	488	void app_pop (char *);
	489	const char * as_where (unsigned int *);
	490	void bump_line_counters (void);
	491	void do_scrub_begin (int);
	492	void input_scrub_begin (void);
	493	void input_scrub_close (void);
	494	void input_scrub_end (void);
	495	int new_logical_line (const char *, int);
	496	int new_logical_line_flags (const char *, int, int);
	497	void subsegs_begin (void);
	498	void subseg_change (segT, int);
	499	segT subseg_new (const char *, subsegT);
	500	segT subseg_force_new (const char *, subsegT);
	501	void subseg_set (segT, subsegT);
	502	int subseg_text_p (segT);
	503	int seg_not_empty_p (segT);
	504	void start_dependencies (char *);
	505	void register_dependency (const char *);
	506	void print_dependencies (void);
	507	segT subseg_get (const char *, int);
	508
	509	const char remap_debug_filename (const char );
	510	void add_debug_prefix_map (const char *);
	511
	512	static inline char *
	513	xmemdup0 (const char *in, size_t len)
	514	{
	515	char out = (char ) xmalloc (len + 1);
	516	out[len] = 0;
	517	return (char *) memcpy (out, in, len);
	518	}
	519
	520	struct expressionS;
	521	struct fix;
	522	typedef struct symbol symbolS;
	523	typedef struct frag fragS;
	524
	525	/* literal.c */
	526	valueT add_to_literal_pool (symbolS *, valueT, segT, int);
	527
	528	int check_eh_frame (struct expressionS , unsigned int );
	529	int eh_frame_estimate_size_before_relax (fragS *);
	530	int eh_frame_relax_frag (fragS *);
	531	void eh_frame_convert_frag (fragS *);
	532	int generic_force_reloc (struct fix *);
	533
	534	#include "expr.h" /* Before targ-.h /
	535
	536	/* This one starts the chain of target dependant headers. */
	537	#include "targ-env.h"
	538
	539	#ifdef OBJ_MAYBE_ELF
	540	#define IS_ELF (OUTPUT_FLAVOR == bfd_target_elf_flavour)
	541	#else
	542	#ifdef OBJ_ELF
	543	#define IS_ELF 1
	544	#else
	545	#define IS_ELF 0
	546	#endif
	547	#endif
	548
	549	#include "write.h"
	550	#include "frags.h"
	551	#include "hash.h"
	552	#include "read.h"
	553	#include "symbols.h"
	554
	555	#include "tc.h"
	556	#include "obj.h"
	557
	558	#ifdef USE_EMULATIONS
	559	#include "emul.h"
	560	#endif
	561	#include "listing.h"
	562
	563	#ifdef H_TICK_HEX
	564	extern int enable_h_tick_hex;
	565	#endif
	566
	567	#ifdef TC_M68K
	568	/* True if we are assembling in m68k MRI mode. */
	569	COMMON int flag_m68k_mri;
	570	#define DOLLAR_AMBIGU flag_m68k_mri
	571	#else
	572	#define flag_m68k_mri 0
	573	#endif
	574
	575	#ifdef WARN_COMMENTS
	576	COMMON int warn_comment;
	577	COMMON unsigned int found_comment;
	578	COMMON const char * found_comment_file;
	579	#endif
	580
	581	#if defined OBJ_ELF \|\| defined OBJ_MAYBE_ELF
	582	/* If .size directive failure should be error or warning. */
	583	COMMON int flag_allow_nonconst_size;
	584
	585	/* If we should generate ELF common symbols with the STT_COMMON type. */
	586	extern int flag_use_elf_stt_common;
	587
	588	/* If section name substitution sequences should be honored */
	589	COMMON int flag_sectname_subst;
	590	#endif
	591
	592	#ifndef DOLLAR_AMBIGU
	593	#define DOLLAR_AMBIGU 0
	594	#endif
	595
	596	#ifndef NUMBERS_WITH_SUFFIX
	597	#define NUMBERS_WITH_SUFFIX 0
	598	#endif
	599
	600	#ifndef LOCAL_LABELS_DOLLAR
	601	#define LOCAL_LABELS_DOLLAR 0
	602	#endif
	603
	604	#ifndef LOCAL_LABELS_FB
	605	#define LOCAL_LABELS_FB 0
	606	#endif
	607
	608	#ifndef LABELS_WITHOUT_COLONS
	609	#define LABELS_WITHOUT_COLONS 0
	610	#endif
	611
	612	#ifndef NO_PSEUDO_DOT
	613	#define NO_PSEUDO_DOT 0
	614	#endif
	615
	616	#ifndef TEXT_SECTION_NAME
	617	#define TEXT_SECTION_NAME ".text"
	618	#define DATA_SECTION_NAME ".data"
	619	#define BSS_SECTION_NAME ".bss"
	620	#endif
	621
	622	#ifndef OCTETS_PER_BYTE_POWER
	623	#define OCTETS_PER_BYTE_POWER 0
	624	#endif
	625	#ifndef OCTETS_PER_BYTE
	626	#define OCTETS_PER_BYTE (1<<OCTETS_PER_BYTE_POWER)
	627	#endif
	628	#if OCTETS_PER_BYTE != (1<<OCTETS_PER_BYTE_POWER)
	629	#error "Octets per byte conflicts with its power-of-two definition!"
	630	#endif
	631
	632	#endif /* GAS */