/* sections.h (was subsegs.h in the original GAS) Copyright (C) 1987 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA. */ #import <mach-o/loader.h> #import "struc-symbol.h" /* * For every section the user mentions in the assembley program, we make one * struct frchain. Each section has exactly one struct frchain and vice versa. * * Struct frchain's are forward chained (in ascending order of section number). * The chain runs through frch_next of each section. * * From each struct frchain dangles a chain of struct frags. The frags * represent code fragments, for that section, forward chained. */ struct frchain { /* control building of a frag chain */ 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 */ section_t frch_section; /* section info, name, type, etc. */ unsigned long frch_nsect; /* section number (1,2,3,...) */ struct fix *frch_fix_root; /* section fixups */ isymbolS *frch_isym_root; /* 1st indirect symbol in chain */ isymbolS *frch_isym_last; /* last indirect symbol in chain */ }; typedef struct frchain frchainS; /* * All sections' chains hang off here. NULL means no frchains yet. */ extern frchainS *frchain_root; /* * The frchain we are assembling into now. That is, the current section's * frag chain, even if it contains no (complete) frags. */ extern frchainS *frchain_now; /* * The global routines defined in sections.c */ extern void sections_begin( void); extern frchainS *section_new( char *segname, char *sectname, unsigned long type, unsigned long attributes, unsigned long sizeof_stub); extern unsigned long is_section_coalesced( unsigned long n_sect); extern unsigned long is_section_non_lazy_symbol_pointers( unsigned long n_sect); extern unsigned long is_section_debug( unsigned long n_sect); extern unsigned long is_section_cstring_literals( unsigned long n_sect); extern unsigned long is_end_section_address( unsigned long n_sect, unsigned long addr); extern unsigned long section_has_fixed_size_data( unsigned long n_sect);