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- /* as.h - global header file
- Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 1996
- Free Software Foundation, Inc.
-
- This file is part of GAS, the GNU Assembler.
-
- GAS is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #ifndef GAS
- #define GAS 1
- /*
- * I think this stuff is largely out of date. xoxorich.
- *
- * CAPITALISED names are #defined.
- * "lowercaseH" is #defined if "lowercase.h" has been #include-d.
- * "lowercaseT" is a typedef of "lowercase" objects.
- * "lowercaseP" is type "pointer to object of type 'lowercase'".
- * "lowercaseS" is typedef struct ... lowercaseS.
- *
- * #define DEBUG to enable all the "know" assertion tests.
- * #define SUSPECT when debugging hash code.
- * #define COMMON as "extern" for all modules except one, where you #define
- * COMMON as "".
- * If TEST is #defined, then we are testing a module: #define COMMON as "".
- */
-
- #include "config.h"
-
- /* This is the code recommended in the autoconf documentation, almost
- verbatim. If it doesn't work for you, let me know, and notify
- djm@gnu.ai.mit.edu as well. */
- /* Added #undef for DJ Delorie. The right fix is to ensure that as.h
- is included first, before even any system header files, in all files
- that use it. KR 1994.11.03 */
- /* Added void* version for STDC case. This is to be compatible with
- the declaration in bison.simple, used for m68k operand parsing.
- --KR 1995.08.08 */
- /* Force void* decl for hpux. This is what Bison uses. --KR 1995.08.16 */
-
- /* AIX requires this to be the first thing in the file. */
- #ifdef __GNUC__
- # undef alloca
- # define alloca __builtin_alloca
- #else
- # if HAVE_ALLOCA_H
- # include <alloca.h>
- # else
- # ifdef _AIX
- #pragma alloca
- # else
- # ifndef alloca /* predefined by HP cc +Olibcalls */
- # if !defined (__STDC__) && !defined (__hpux)
- char *alloca ();
- # else
- void *alloca ();
- # endif /* __STDC__, __hpux */
- # endif /* alloca */
- # endif /* _AIX */
- # endif /* HAVE_ALLOCA_H */
- #endif
-
- /* Now, tend to the rest of the configuration. */
-
- /* System include files first... */
- #include <stdio.h>
- #include <ctype.h>
- #ifdef HAVE_STRING_H
- #include <string.h>
- #else
- #include <strings.h>
- #endif
- #ifdef HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
- #ifdef HAVE_UNISTD_H
- #include <unistd.h>
- #endif
- #ifdef HAVE_SYS_TYPES_H
- /* for size_t, pid_t */
- #include <sys/types.h>
- #endif
-
- #include <getopt.h>
- /* The first getopt value for machine-independent long options.
- 150 isn't special; it's just an arbitrary non-ASCII char value. */
- #define OPTION_STD_BASE 150
- /* The first getopt value for machine-dependent long options.
- 170 gives the standard options room to grow. */
- #define OPTION_MD_BASE 170
-
- #ifdef DEBUG
- #undef NDEBUG
- #endif
- #if !defined (__GNUC__) || __GNUC_MINOR__ <= 5
- #define __PRETTY_FUNCTION__ ((char*)0)
- #endif
- #if 0
-
- /* Handle lossage with assert.h. */
- #ifndef BROKEN_ASSERT
- #include <assert.h>
- #else /* BROKEN_ASSERT */
- #ifndef NDEBUG
- #define assert(p) ((p) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
- #else
- #define assert(p) ((p), 0)
- #endif
- #endif /* BROKEN_ASSERT */
-
- #else
-
- #define assert(P) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
- #undef abort
- #define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
-
- #endif
-
-
- /* Now GNU header files... */
- #include <ansidecl.h>
- #ifdef BFD_ASSEMBLER
- #include <bfd.h>
- #endif
-
- /* 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_MALLOC
- extern PTR malloc ();
- extern PTR realloc ();
- #endif
- #ifdef NEED_DECLARATION_FREE
- extern void free ();
- #endif
- #ifdef NEED_DECLARATION_ERRNO
- extern int errno;
- #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
-
- #ifdef BFD_ASSEMBLER
- /* This one doesn't get declared, but we're using it anyways. This
- should be fixed -- either it's part of the external interface or
- it's not. */
- extern PTR bfd_alloc_by_size_t PARAMS ((bfd *abfd, size_t sz));
- #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 GO32
- #include "fopen-bin.h"
- #else
- #include "fopen-same.h"
- #endif
- #endif
-
- #ifndef EXIT_SUCCESS
- #define EXIT_SUCCESS 0
- #define EXIT_FAILURE 1
- #endif
-
- #define obstack_chunk_alloc xmalloc
- #define obstack_chunk_free xfree
-
- #define xfree free
-
- #define BAD_CASE(val) \
- { \
- as_fatal("Case value %ld unexpected at line %d of file \"%s\"\n", \
- (long) val, __LINE__, __FILE__); \
- }
-
- /* Version 2.1 of Solaris had problems with this declaration, but I
- think that bug has since been fixed. If it causes problems on your
- system, just delete it. */
- extern char *strstr ();
-
- #include "flonum.h"
-
- /* These are assembler-wide concepts */
-
- #ifdef BFD_ASSEMBLER
- extern bfd *stdoutput;
- typedef bfd_vma addressT;
- typedef bfd_signed_vma offsetT;
- #else
- typedef unsigned long addressT;
- typedef long offsetT;
- #endif
-
- /* Type of symbol value, etc. For use in prototypes. */
- typedef addressT valueT;
-
- #ifndef COMMON
- #ifdef TEST
- #define COMMON /* declare our COMMONs storage here. */
- #else
- #define COMMON extern /* our commons live elswhere */
- #endif
- #endif
- /* COMMON now defined */
-
- #ifdef DEBUG
- #ifndef know
- #define know(p) assert(p) /* Verify our assumptions! */
- #endif /* not yet defined */
- #else
- #define know(p) /* know() checks are no-op.ed */
- #endif
-
- /* input_scrub.c */
-
- /*
- * Supplies sanitised buffers to read.c.
- * Also understands printing line-number part of error messages.
- */
-
-
- /* subsegs.c Sub-segments. Also, segment(=expression type)s.*/
-
- #ifndef BFD_ASSEMBLER
-
- #ifdef MANY_SEGMENTS
- #include "bfd.h"
- #define N_SEGMENTS 40
- #define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
- #define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
- SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
- SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
- SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
- #define SEG_TEXT SEG_E0
- #define SEG_DATA SEG_E1
- #define SEG_BSS SEG_E2
- #define SEG_LAST SEG_E39
- #else
- #define N_SEGMENTS 3
- #define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
- #define SEG_LIST SEG_TEXT,SEG_DATA,SEG_BSS
- #endif
-
- typedef enum _segT
- {
- SEG_ABSOLUTE = 0,
- SEG_LIST,
- SEG_UNKNOWN,
- SEG_GOOF, /* Only happens if AS has a logic error. */
- /* Invented so we don't crash printing */
- /* error message involving weird segment. */
- SEG_EXPR, /* Intermediate expression values. */
- SEG_DEBUG, /* Debug segment */
- SEG_NTV, /* Transfert vector preload segment */
- SEG_PTV, /* Transfert vector postload segment */
- SEG_REGISTER /* Mythical: a register-valued expression */
- } segT;
-
- #define SEG_MAXIMUM_ORDINAL (SEG_REGISTER)
- #else
- typedef asection *segT;
- #define SEG_NORMAL(SEG) ((SEG) != absolute_section \
- && (SEG) != undefined_section \
- && (SEG) != reg_section \
- && (SEG) != expr_section)
- #endif
- typedef int subsegT;
-
- /* What subseg we are accreting now? */
- COMMON subsegT now_subseg;
-
- /* Segment our instructions emit to. */
- COMMON segT now_seg;
-
- #ifdef BFD_ASSEMBLER
- #define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
- #else
- extern char const *const seg_name[];
- #define segment_name(SEG) seg_name[(int) (SEG)]
- #endif
-
- #ifndef BFD_ASSEMBLER
- extern int section_alignment[];
- #endif
-
- #ifdef BFD_ASSEMBLER
- extern segT reg_section, expr_section;
- /* Shouldn't these be eliminated someday? */
- extern segT text_section, data_section, bss_section;
- #define absolute_section bfd_abs_section_ptr
- #define undefined_section bfd_und_section_ptr
- #else
- #define reg_section SEG_REGISTER
- #define expr_section SEG_EXPR
- #define text_section SEG_TEXT
- #define data_section SEG_DATA
- #define bss_section SEG_BSS
- #define absolute_section SEG_ABSOLUTE
- #define undefined_section SEG_UNKNOWN
- #endif
-
- /* relax() */
-
- enum _relax_state
- {
- /* Variable chars to be repeated fr_offset times.
- Fr_symbol unused. Used with fr_offset == 0 for a
- constant length frag. */
- rs_fill = 1,
-
- /* Align: Fr_offset: power of 2. Variable chars: fill pattern. */
- rs_align,
-
- /* Align code: fr_offset: power of 2. Fill pattern is machine
- specific, defaulting to all zeros. */
- rs_align_code,
-
- /* 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
- };
-
- 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;
-
-
- /* frags.c */
-
- /*
- * A code fragment (frag) is some known number of chars, followed by some
- * unknown number of chars. Typically the unknown number of chars is an
- * instruction address whose size is yet unknown. We always know the greatest
- * possible size the unknown number of chars may become, and reserve that
- * much room at the end of the frag.
- * Once created, frags do not change address during assembly.
- * We chain the frags in (a) forward-linked list(s). The object-file address
- * of the 1st char of a frag is generally not known until after relax().
- * Many things at assembly time describe an address by {object-file-address
- * of a particular frag}+offset.
-
- BUG: it may be smarter to have a single pointer off to various different
- notes for different frag kinds. See how code pans
- */
- struct frag
- {
- /* Object file address. */
- addressT fr_address;
- /* Chain forward; ascending address order. Rooted in frch_root. */
- struct frag *fr_next;
-
- /* (Fixed) number of chars we know we have. May be 0. */
- offsetT fr_fix;
- /* (Variable) number of chars after above. May be 0. */
- offsetT fr_var;
- /* For variable-length tail. */
- struct symbol *fr_symbol;
- /* For variable-length tail. */
- offsetT fr_offset;
- /* Points to opcode low addr byte, for relaxation. */
- char *fr_opcode;
-
- #ifndef NO_LISTING
- struct list_info_struct *line;
- #endif
-
- /* What state is my tail in? */
- relax_stateT fr_type;
- relax_substateT fr_subtype;
-
- /* These are needed only on the NS32K machines. But since we don't
- include targ-cpu.h until after this structure has been defined,
- we can't really conditionalize it. This code should be
- rearranged a bit to make that possible.
-
- In the meantime, if we get stuck like this with any other target,
- create a union here. */
- char fr_pcrel_adjust, fr_bsr;
-
- /* Where the frag was created, or where it became a variant frag. */
- char *fr_file;
- unsigned int fr_line;
-
- /* Data begins here. */
- char fr_literal[1];
- };
-
- #define SIZEOF_STRUCT_FRAG \
- ((char *)zero_address_frag.fr_literal-(char *)&zero_address_frag)
- /* We want to say fr_literal[0] above. */
-
- typedef struct frag fragS;
-
- /* Current frag we are building. This frag is incomplete. It is, however,
- included in frchain_now. The fr_fix field is bogus; instead, use:
- obstack_next_free(&frags)-frag_now->fr_literal. */
- COMMON fragS *frag_now;
- extern int frag_now_fix ();
-
- /* For foreign-segment symbol fixups. */
- COMMON fragS zero_address_frag;
- /* For local common (N_BSS segment) fixups. */
- COMMON fragS bss_address_frag;
-
- /* 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;
-
- /* True if we are assembling in m68k MRI mode. */
- COMMON int flag_m68k_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 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;
-
- /* name of emitted object file */
- COMMON char *out_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;
-
- /* Maximum level of macro nesting. */
- extern int max_macro_nest;
-
- /* 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) PARAMS ((int));
- /* Value to pass to handler */
- int poc_val;
- };
-
- typedef struct _pseudo_type pseudo_typeS;
-
- /* Prefer varargs for non-ANSI compiler, since some will barf if the
- ellipsis definition is used with a no-arguments declaration. */
- #if defined (HAVE_VARARGS_H) && !defined (__STDC__)
- #undef HAVE_STDARG_H
- #endif
-
- #if defined (HAVE_STDARG_H)
- #define USE_STDARG
- #endif
- #if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
- #define USE_VARARGS
- #endif
-
- #ifdef USE_STDARG
- #if __GNUC__ >= 2
- /* for use with -Wformat */
- #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 /* ANSI C with stdarg, but not GNU C */
- #define PRINTF_LIKE(FCN) void FCN PARAMS ((const char *format, ...))
- #define PRINTF_WHERE_LIKE(FCN) void FCN PARAMS ((char *file, \
- unsigned int line, \
- const char *format, ...))
- #endif
- #else /* not using stdarg */
- #define PRINTF_LIKE(FCN) void FCN ()
- #define PRINTF_WHERE_LIKE(FCN) void FCN ()
- #endif
-
- PRINTF_LIKE (as_bad);
- PRINTF_LIKE (as_fatal);
- PRINTF_LIKE (as_tsktsk);
- PRINTF_LIKE (as_warn);
- PRINTF_WHERE_LIKE (as_bad_where);
- PRINTF_WHERE_LIKE (as_warn_where);
- void as_assert PARAMS ((const char *, int, const char *));
- void as_abort PARAMS ((const char *, int, const char *));
-
- void fprint_value PARAMS ((FILE *file, addressT value));
- void sprint_value PARAMS ((char *buf, addressT value));
-
- int had_errors PARAMS ((void));
- int had_warnings PARAMS ((void));
-
- void print_version_id PARAMS ((void));
- char *app_push PARAMS ((void));
- char *atof_ieee PARAMS ((char *str, int what_kind, LITTLENUM_TYPE * words));
- char *input_scrub_include_file PARAMS ((char *filename, char *position));
- char *input_scrub_new_file PARAMS ((char *filename));
- char *input_scrub_next_buffer PARAMS ((char **bufp));
- PTR xmalloc PARAMS ((unsigned long size));
- PTR xrealloc PARAMS ((PTR ptr, unsigned long n));
- int do_scrub_chars PARAMS ((int (*get) (char **), char *to, int tolen));
- int gen_to_words PARAMS ((LITTLENUM_TYPE * words, int precision,
- long exponent_bits));
- int had_err PARAMS ((void));
- int ignore_input PARAMS ((void));
- int seen_at_least_1_file PARAMS ((void));
- void app_pop PARAMS ((char *arg));
- void as_howmuch PARAMS ((FILE * stream));
- void as_perror PARAMS ((const char *gripe, const char *filename));
- void as_where PARAMS ((char **namep, unsigned int *linep));
- void bump_line_counters PARAMS ((void));
- void do_scrub_begin PARAMS ((int));
- void input_scrub_begin PARAMS ((void));
- void input_scrub_close PARAMS ((void));
- void input_scrub_end PARAMS ((void));
- void new_logical_line PARAMS ((char *fname, int line_number));
- void subsegs_begin PARAMS ((void));
- void subseg_change PARAMS ((segT seg, int subseg));
- segT subseg_new PARAMS ((const char *name, subsegT subseg));
- segT subseg_force_new PARAMS ((const char *name, subsegT subseg));
- void subseg_set PARAMS ((segT seg, subsegT subseg));
- #ifdef BFD_ASSEMBLER
- segT subseg_get PARAMS ((const char *, int));
- #endif
-
- struct expressionS;
- struct fix;
- struct symbol;
- struct relax_type;
-
- #ifdef BFD_ASSEMBLER
- /* literal.c */
- valueT add_to_literal_pool PARAMS ((struct symbol *, valueT, segT, int));
- #endif
-
- #include "expr.h" /* Before targ-*.h */
-
- /* this one starts the chain of target dependant headers */
- #include "targ-env.h"
-
- #include "struc-symbol.h"
- #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"
-
- #ifndef LOCAL_LABELS_DOLLAR
- #define LOCAL_LABELS_DOLLAR 0
- #endif
-
- #ifndef LOCAL_LABELS_FB
- #define LOCAL_LABELS_FB 0
- #endif
-
- #endif /* GAS */
-
- /* end of as.h */
-