diff options
Diffstat (limited to 'gas/subsegs.h')
-rw-r--r-- | gas/subsegs.h | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/gas/subsegs.h b/gas/subsegs.h deleted file mode 100644 index 4840d5b5c2b..00000000000 --- a/gas/subsegs.h +++ /dev/null @@ -1,159 +0,0 @@ -/* subsegs.h -> subsegs.c - Copyright (C) 1987, 92, 93, 94, 95, 96, 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. */ - -/* - * For every sub-segment the user mentions in the ASsembler program, - * we make one struct frchain. Each sub-segment has exactly one struct frchain - * and vice versa. - * - * Struct frchain's are forward chained (in ascending order of sub-segment - * code number). The chain runs through frch_next of each subsegment. - * This makes it hard to find a subsegment's frags - * if programmer uses a lot of them. Most programs only use text0 and - * data0, so they don't suffer. At least this way: - * (1) There are no "arbitrary" restrictions on how many subsegments - * can be programmed; - * (2) Subsegments' frchain-s are (later) chained together in the order in - * which they are emitted for object file viz text then data. - * - * From each struct frchain dangles a chain of struct frags. The frags - * represent code fragments, for that sub-segment, forward chained. - */ - -#include "obstack.h" - -struct frchain /* control building of a frag chain */ -{ /* FRCH = FRagment CHain control */ - struct frag *frch_root; /* 1st struct frag in chain, or NULL */ - struct frag *frch_last; /* last struct frag in chain, or NULL */ - struct frchain *frch_next; /* next in chain of struct frchain-s */ - segT frch_seg; /* SEG_TEXT or SEG_DATA. */ - subsegT frch_subseg; /* subsegment number of this chain */ -#ifdef BFD_ASSEMBLER - fixS *fix_root; /* Root of fixups for this subsegment. */ - fixS *fix_tail; /* Last fixup for this subsegment. */ -#endif - struct obstack frch_obstack; /* for objects in this frag chain */ - fragS *frch_frag_now; /* frag_now for this subsegment */ -}; - -typedef struct frchain frchainS; - -/* All subsegments' chains hang off here. NULL means no frchains yet. */ -extern frchainS *frchain_root; - -/* Frchain we are assembling into now. That is, the current segment's - frag chain, even if it contains no (complete) frags. */ -extern frchainS *frchain_now; - - -typedef struct segment_info_struct -{ - frchainS *frchainP; - unsigned int hadone : 1; - - /* This field is set if this is a .bss section which does not really - have any contents. Once upon a time a .bss section did not have - any frags, but that is no longer true. This field prevent the - SEC_HAS_CONTENTS flag from being set for the section even if - there are frags. */ - unsigned int bss : 1; - - int user_stuff; - - /* Fixups for this segment. If BFD_ASSEMBLER, this is only valid - after the frchains are run together. */ - fixS *fix_root; - fixS *fix_tail; - -#if defined (MANY_SEGMENTS) && !defined (BFD_ASSEMBLER) - struct internal_scnhdr scnhdr; - enum linkonce_type linkonce; - const char *name; -#endif - - symbolS *dot; - - struct lineno_list *lineno_list_head; - struct lineno_list *lineno_list_tail; - -#ifdef BFD_ASSEMBLER - /* Which BFD section does this gas segment correspond to? */ - asection *bfd_section; - - /* NULL, or pointer to the gas symbol that is the section symbol for - this section. sym->bsym and bfd_section->symbol should be the same. */ - symbolS *sym; -#endif - - union - { - /* Current size of section holding stabs strings. */ - unsigned long stab_string_size; - /* Initial frag for ELF. */ - char *p; - } - stabu; - -#ifdef NEED_LITERAL_POOL - unsigned long literal_pool_size; -#endif - -#ifdef TC_SEGMENT_INFO_TYPE - TC_SEGMENT_INFO_TYPE tc_segment_info_data; -#endif -} segment_info_type; - -#ifdef BFD_ASSEMBLER - -extern segment_info_type *seg_info PARAMS ((segT)); -extern symbolS *section_symbol PARAMS ((segT)); - -#else /* ! BFD_ASSEMBLER */ - -#ifdef MANY_SEGMENTS - -extern segment_info_type segment_info[]; - -#define seg_info(SEC) (&segment_info[SEC]) - -#else - -/* Sentinel for frchain crawling. Points to the 1st data-segment - frchain. (Which is pointed to by the last text-segment frchain.) */ -extern frchainS *data0_frchainP; -extern frchainS *bss0_frchainP; - -/* Dummy so stuff can compile. Should never be used. */ -struct seg_info_trash { - struct { - unsigned stab_string_size : 1; - } stabu; - unsigned hadone : 1; -}; -#define seg_info(S) (abort (), (struct seg_info_trash *) 0) - -#endif - -#endif /* ! BFD_ASSEMBLER */ - -extern void subsegs_print_statistics PARAMS ((FILE *)); - -/* end of subsegs.h */ |