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sections.h
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1993-10-07
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/* 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 */
struct section 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);