/* 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 */ #ifndef GAS #define GAS 1 /* * I think this stuff is largely out of date.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 # 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 #include #ifdef HAVE_STRING_H #include #else #ifdef HAVE_STRINGS_H #include #endif #endif #ifdef HAVE_STDLIB_H #include #endif #ifdef HAVE_UNISTD_H #include #endif #ifdef HAVE_SYS_TYPES_H /* for size_t, pid_t */ #include #endif #include /* 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 #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 #ifdef BFD_ASSEMBLER #include #endif #include /* Define the standard progress macros. */ #include /* 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 /* 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__); \ } #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; /* True if we are doing {Net,Open}BSD PIC. */ COMMON int flag_pic; /* 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) && !defined(VMS) /* 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)); 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 */