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Diffstat (limited to 'gas/frags.h')
| -rw-r--r-- | gas/frags.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/gas/frags.h b/gas/frags.h deleted file mode 100644 index b188e33cf43..00000000000 --- a/gas/frags.h +++ /dev/null @@ -1,158 +0,0 @@ -/* frags.h - Header file for the frag concept. - Copyright (C) 1987, 92, 93, 94, 95, 97, 98, 1999 - 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 FRAGS_H -#define FRAGS_H - -#ifdef ANSI_PROTOTYPES -struct obstack; -#endif - -/* - * 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. */ - symbolS *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; - -#ifdef USING_CGEN - /* Don't include this unless using CGEN to keep frag size down. */ - struct { - /* CGEN_INSN entry for this instruction. */ - const struct cgen_insn *insn; - /* Index into operand table. */ - int opindex; - /* Target specific data, usually reloc number. */ - int opinfo; - } fr_cgen; -#endif - -#ifdef TC_FRAG_TYPE - TC_FRAG_TYPE tc_frag_data; -#endif - - /* 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. */ - -/* Current frag we are building. This frag is incomplete. It is, - however, included in frchain_now. The fr_fix field is bogus; - instead, use frag_now_fix (). */ -COMMON fragS *frag_now; -extern addressT frag_now_fix PARAMS ((void)); - -/* For foreign-segment symbol fixups. */ -COMMON fragS zero_address_frag; -/* For local common (N_BSS segment) fixups. */ -COMMON fragS bss_address_frag; - -#if 0 -/* - * A macro to speed up appending exactly 1 char - * to current frag. - */ -/* JF changed < 1 to <= 1 to avoid a race conditon */ -#define FRAG_APPEND_1_CHAR(datum) \ -{ \ - if (obstack_room( &frags ) <= 1) {\ - frag_wane (frag_now); \ - frag_new (0); \ - } \ - obstack_1grow( &frags, datum ); \ -} -#else -extern void frag_append_1_char PARAMS ((int)); -#define FRAG_APPEND_1_CHAR(X) frag_append_1_char (X) -#endif - - -void frag_init PARAMS ((void)); -fragS *frag_alloc PARAMS ((struct obstack *)); -void frag_grow PARAMS ((unsigned int nchars)); -char *frag_more PARAMS ((int nchars)); -void frag_align PARAMS ((int alignment, int fill_character, int max)); -void frag_align_pattern PARAMS ((int alignment, - const char *fill_pattern, - int n_fill, - int max)); -void frag_new PARAMS ((int old_frags_var_max_size)); -void frag_wane PARAMS ((fragS * fragP)); - -char *frag_variant PARAMS ((relax_stateT type, - int max_chars, - int var, - relax_substateT subtype, - symbolS * symbol, - offsetT offset, - char *opcode)); - -char *frag_var PARAMS ((relax_stateT type, - int max_chars, - int var, - relax_substateT subtype, - symbolS * symbol, - offsetT offset, - char *opcode)); - -#endif /* FRAGS_H */ |