85e38cfa01
* 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.
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/* ldsym.h -
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Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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typedef struct user_symbol_struct
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{
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/* Point to next symbol in this hash chain */
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struct user_symbol_struct *link;
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/* Name of this symbol. */
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CONST char *name;
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/* Pointer to next symbol in order of symbol creation */
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struct user_symbol_struct *next;
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/* Chain of asymbols we see from input files
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note that we point to the entry in the canonical table of
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the pointer to the asymbol, *not* the asymbol. This means
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that we can run back and fix all refs to point to the
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defs nearly for free.
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*/
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asymbol **srefs_chain;
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asymbol **sdefs_chain;
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/* only ever point to the largest ever common definition -
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* all the rest are turned into refs
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* scoms and sdefs are never != NULL at same time
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*/
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asymbol **scoms_chain;
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/* If this symbol is a constructor */
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#define SYM_CONSTRUCTOR 1
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/* If this symbol is a warning symbol */
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#define SYM_WARNING 2
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/* IF this is an alias for another symbol */
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#define SYM_INDIRECT 4
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/* If this symbol explicitly should be kept, despite discarding
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most others. */
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#define SYM_KEEP 8
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/* If its got -y set */
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#define SYM_Y 16
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int flags;
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} ldsym_type;
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extern CONST char *keepsyms_file;
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extern int kept_syms;
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ldsym_type *ldsym_get PARAMS ((CONST char *));
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ldsym_type *ldsym_get_soft PARAMS ((CONST char *));
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void ldsym_print_symbol_table PARAMS ((void));
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void ldsym_write PARAMS ((void));
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boolean ldsym_undefined PARAMS ((CONST char *));
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#define FOR_EACH_LDSYM(x) \
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extern ldsym_type *symbol_head; \
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ldsym_type *x; \
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for (x = symbol_head; x != (ldsym_type *)NULL; x = x->next)
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void ldsym_init PARAMS ((void));
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