X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gas%2Ffrags.h;h=2f9e1b571d295e954ce71aa69d63bab327cbdb4f;hb=29cf29a2cf1a5df53c9b77cce8916e8c0fc82e12;hp=df259b8fe5583dcb779154766f801bd788106d7c;hpb=e46d99eb07bc0e366152fe2e69c613a15496e347;p=deliverable%2Fbinutils-gdb.git diff --git a/gas/frags.h b/gas/frags.h index df259b8fe5..2f9e1b571d 100644 --- a/gas/frags.h +++ b/gas/frags.h @@ -1,12 +1,11 @@ /* frags.h - Header file for the frag concept. - Copyright 1987, 1992, 1993, 1994, 1995, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. + Copyright (C) 1987-2014 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) + 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, @@ -16,15 +15,13 @@ 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. */ + Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA + 02110-1301, 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 @@ -38,7 +35,7 @@ struct obstack; 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. */ + notes for different frag kinds. See how code pans. */ struct frag { /* Object file address (as an octet offset). */ @@ -70,10 +67,19 @@ struct frag { struct list_info_struct *line; #endif + /* A serial number for a sequence of frags having at most one alignment + or org frag, and that at the tail of the sequence. */ + unsigned int region:16; + /* Flipped each relax pass so we can easily determine whether fr_address has been adjusted. */ unsigned int relax_marker:1; + /* Used to ensure that all insns are emitted on proper address + boundaries. */ + unsigned int has_code:1; + unsigned int insn_addr:6; + /* What state is my tail in? */ relax_stateT fr_type; relax_substateT fr_subtype; @@ -93,6 +99,9 @@ struct frag { #ifdef TC_FRAG_TYPE TC_FRAG_TYPE tc_frag_data; #endif +#ifdef OBJ_FRAG_TYPE + OBJ_FRAG_TYPE obj_frag_data; +#endif /* Data begins here. */ char fr_literal[1]; @@ -106,58 +115,47 @@ struct frag { 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)); -extern addressT frag_now_fix_octets PARAMS ((void)); +extern addressT frag_now_fix (void); +extern addressT frag_now_fix_octets (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)); +COMMON fragS predefined_address_frag; + +extern void frag_append_1_char (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_align_code PARAMS ((int alignment, 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)); +void frag_init (void); +fragS *frag_alloc (struct obstack *); +void frag_grow (unsigned int nchars); +char *frag_more (int nchars); +void frag_align (int alignment, int fill_character, int max); +void frag_align_pattern (int alignment, const char *fill_pattern, + int n_fill, int max); +void frag_align_code (int alignment, int max); +void frag_new (int old_frags_var_max_size); +void frag_wane (fragS * fragP); +int frag_room (void); + +char *frag_variant (relax_stateT type, + int max_chars, + int var, + relax_substateT subtype, + symbolS * symbol, + offsetT offset, + char *opcode); + +char *frag_var (relax_stateT type, + int max_chars, + int var, + relax_substateT subtype, + symbolS * symbol, + offsetT offset, + char *opcode); + +bfd_boolean frag_offset_fixed_p (const fragS *, const fragS *, offsetT *); + +int get_frag_count (void); +void clear_frag_count (void); #endif /* FRAGS_H */