darling-gdb/ld/ldsym.h
Steve Chamberlain 85e38cfa01 -y support
* ld.texinfo: new doc.
	* ldgram.y, ldlex.l: understand -y<symbol>
	* ldmain.c (Q_enter_file_symbols): if had -y, lookup symbol and
	print info. (add_ysym): new function.
	* ldsym.h: (ldsym_type): new define SYM_Y.
1992-12-07 16:49:54 +00:00

79 lines
2.4 KiB
C

/* ldsym.h -
Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
This program 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 of the License, or
(at your option) any later version.
This program 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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
typedef struct user_symbol_struct
{
/* Point to next symbol in this hash chain */
struct user_symbol_struct *link;
/* Name of this symbol. */
CONST char *name;
/* Pointer to next symbol in order of symbol creation */
struct user_symbol_struct *next;
/* Chain of asymbols we see from input files
note that we point to the entry in the canonical table of
the pointer to the asymbol, *not* the asymbol. This means
that we can run back and fix all refs to point to the
defs nearly for free.
*/
asymbol **srefs_chain;
asymbol **sdefs_chain;
/* only ever point to the largest ever common definition -
* all the rest are turned into refs
* scoms and sdefs are never != NULL at same time
*/
asymbol **scoms_chain;
/* If this symbol is a constructor */
#define SYM_CONSTRUCTOR 1
/* If this symbol is a warning symbol */
#define SYM_WARNING 2
/* IF this is an alias for another symbol */
#define SYM_INDIRECT 4
/* If this symbol explicitly should be kept, despite discarding
most others. */
#define SYM_KEEP 8
/* If its got -y set */
#define SYM_Y 16
int flags;
} ldsym_type;
extern CONST char *keepsyms_file;
extern int kept_syms;
ldsym_type *ldsym_get PARAMS ((CONST char *));
ldsym_type *ldsym_get_soft PARAMS ((CONST char *));
void ldsym_print_symbol_table PARAMS ((void));
void ldsym_write PARAMS ((void));
boolean ldsym_undefined PARAMS ((CONST char *));
#define FOR_EACH_LDSYM(x) \
extern ldsym_type *symbol_head; \
ldsym_type *x; \
for (x = symbol_head; x != (ldsym_type *)NULL; x = x->next)
void ldsym_init PARAMS ((void));