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Diffstat (limited to 'gas/as.h')
| -rw-r--r-- | gas/as.h | 645 |
1 files changed, 645 insertions, 0 deletions
diff --git a/gas/as.h b/gas/as.h new file mode 100644 index 00000000000..a72dfad28dc --- /dev/null +++ b/gas/as.h @@ -0,0 +1,645 @@ +/* as.h - global header file + Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 1998 + 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 */ + +#ifndef GAS +#define GAS 1 +/* + * I think this stuff is largely out of date.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__ +# ifndef alloca +# ifdef __STDC__ +extern void *alloca (); +# else +extern char *alloca (); +# endif +# endif +#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) +extern char *alloca (); +# else +extern 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 +#ifdef HAVE_STRINGS_H +#include <strings.h> +#endif +#endif +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif +#ifdef HAVE_UNISTD_H +#include <unistd.h> +#endif +#ifdef HAVE_SYS_TYPES_H +/* for size_t, pid_t */ +#include <sys/types.h> +#endif + +#include <getopt.h> +/* The first getopt value for machine-independent long options. + 150 isn't special; it's just an arbitrary non-ASCII char value. */ +#define OPTION_STD_BASE 150 +/* The first getopt value for machine-dependent long options. + 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 +#include <libiberty.h> + +/* Define the standard progress macros. */ +#include <progress.h> + +/* This doesn't get taken care of anywhere. */ +#ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */ +#if !defined (__GNUC__) && !defined (inline) +#define inline +#endif +#endif /* !__MWERKS__ */ + +/* Other stuff from config.h. */ +#ifdef NEED_DECLARATION_STRSTR +extern char *strstr (); +#endif +#ifdef NEED_DECLARATION_MALLOC +extern PTR malloc (); +extern PTR realloc (); +#endif +#ifdef NEED_DECLARATION_FREE +extern void free (); +#endif +#ifdef NEED_DECLARATION_ERRNO +extern int errno; +#endif +#ifdef NEED_DECLARATION_ENVIRON +extern char **environ; +#endif + +/* This is needed for VMS. */ +#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE) +#define unlink remove +#endif + +/* Hack to make "gcc -Wall" not complain about obstack macros. */ +#if !defined (memcpy) && !defined (bcopy) +#define bcopy(src,dest,size) memcpy(dest,src,size) +#endif + +/* Make Saber happier on obstack.h. */ +#ifdef SABER +#undef __PTR_TO_INT +#define __PTR_TO_INT(P) ((int)(P)) +#undef __INT_TO_PTR +#define __INT_TO_PTR(P) ((char *)(P)) +#endif + +#ifndef __LINE__ +#define __LINE__ "unknown" +#endif /* __LINE__ */ + +#ifndef __FILE__ +#define __FILE__ "unknown" +#endif /* __FILE__ */ + +#ifndef FOPEN_WB +#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 + +#include "asintl.h" + +#define BAD_CASE(val) \ +{ \ + as_fatal(_("Case value %ld unexpected at line %d of file \"%s\"\n"), \ + (long) val, __LINE__, __FILE__); \ + } + +#include "flonum.h" + +/* These are assembler-wide concepts */ + +#ifdef BFD_ASSEMBLER +extern bfd *stdoutput; +typedef bfd_vma addressT; +typedef bfd_signed_vma offsetT; +#else +typedef unsigned long addressT; +typedef long offsetT; +#endif + +/* Type of symbol value, etc. For use in prototypes. */ +typedef addressT valueT; + +#ifndef COMMON +#ifdef TEST +#define COMMON /* declare our COMMONs storage here. */ +#else +#define COMMON extern /* our commons live 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. 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, + + /* 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 + }; + +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; + +/* 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; + +/* 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; + +/* 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 + only support stabs and ECOFF. */ + +enum debug_info_type + { + DEBUG_UNSPECIFIED, + DEBUG_NONE, + DEBUG_STABS, + DEBUG_ECOFF, + DEBUG_DWARF, + DEBUG_DWARF2 + }; + +extern enum debug_info_type debug_type; + +/* 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) && !defined(VMS) +/* for use with -Wformat */ + +#if __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 PARAMS ((const char *format, ...)) +#define PRINTF_WHERE_LIKE(FCN) void FCN PARAMS ((char *file, \ + unsigned int line, \ + const char *format, ...)) + +#endif /* __GNUC__ < 2 || defined(VMS) */ + +#else /* ! USE_STDARG */ + +#define PRINTF_LIKE(FCN) void FCN () +#define PRINTF_WHERE_LIKE(FCN) void FCN () + +#endif /* ! USE_STDARG */ + +PRINTF_LIKE (as_bad); +PRINTF_LIKE (as_fatal); +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)); +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)); +void cond_finish_check PARAMS ((int)); +void cond_exit_macro PARAMS ((int)); +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)); +int 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 + +void start_dependencies PARAMS ((char *)); +void register_dependency PARAMS ((char *)); +void print_dependencies PARAMS ((void)); + +struct expressionS; +struct fix; +struct symbol; +struct relax_type; +typedef struct frag fragS; + +#ifdef BFD_ASSEMBLER +/* literal.c */ +valueT add_to_literal_pool PARAMS ((struct symbol *, valueT, segT, int)); +#endif + +int check_eh_frame PARAMS ((struct expressionS *, unsigned int *)); +int eh_frame_estimate_size_before_relax PARAMS ((fragS *)); +int eh_frame_relax_frag PARAMS ((fragS *)); +void eh_frame_convert_frag PARAMS ((fragS *)); + +#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 + +#ifndef TEXT_SECTION_NAME +#define TEXT_SECTION_NAME ".text" +#define DATA_SECTION_NAME ".data" +#define BSS_SECTION_NAME ".bss" +#endif + +#endif /* GAS */ + +/* end of as.h */ |