99 lines
3.3 KiB
C
99 lines
3.3 KiB
C
/* $NetBSD: db_sym.h,v 1.13 2000/05/25 19:57:36 jhawk Exp $ */
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/*
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* Mach Operating System
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* Copyright (c) 1993,1992,1991,1990 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*
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* Author: Alessandro Forin, Carnegie Mellon University
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* Date: 8/90
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*/
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#ifndef _DDB_DB_SYM_H_
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#define _DDB_DB_SYM_H_
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#include <sys/stdint.h>
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#include <sys/exec_elf.h>
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/*
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* Non-stripped symbol tables will have duplicates, for instance
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* the same string could match a parameter name, a local var, a
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* global var, etc.
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* We are most concern with the following matches.
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*/
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typedef int db_strategy_t; /* search strategy */
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#define DB_STGY_ANY 0 /* anything goes */
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#define DB_STGY_XTRN 1 /* only external symbols */
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#define DB_STGY_PROC 2 /* only procedures */
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/*
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* Internal db_forall function calling convention:
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*
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* (*db_forall_func)(stab, sym, name, suffix, prefix, arg);
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*
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* stab is the symbol table, symbol the (opaque) symbol pointer,
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* name the name of the symbol, suffix a string representing
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* the type, prefix an initial ignorable function prefix (e.g. "_"
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* in a.out), and arg an opaque argument to be passed in.
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*/
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typedef void (db_forall_func_t)(Elf_Sym *, char *, char *, int, void *);
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extern unsigned int db_maxoff; /* like gdb's "max-symbolic-offset" */
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int db_eqname(char *, char *, int);
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/* strcmp, modulo leading char */
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Elf_Sym * db_symbol_by_name(char *, db_expr_t *);
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/* find symbol value given name */
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Elf_Sym * db_search_symbol(vaddr_t, db_strategy_t, db_expr_t *);
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/* find symbol given value */
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void db_symbol_values(Elf_Sym *, char **, db_expr_t *);
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/* return name and value of symbol */
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#define db_find_sym_and_offset(val,namep,offp) \
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db_symbol_values(db_search_symbol(val,DB_STGY_ANY,offp),namep,NULL)
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/* find name&value given approx val */
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#define db_find_xtrn_sym_and_offset(val,namep,offp) \
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db_symbol_values(db_search_symbol(val,DB_STGY_XTRN,offp),namep,NULL)
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/* ditto, but no locals */
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void db_printsym(db_expr_t, db_strategy_t, int (*)(const char *, ...));
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/* print closest symbol to a value */
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int db_elf_sym_init(int, void *, void *, const char *);
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Elf_Sym * db_elf_sym_search(vaddr_t, db_strategy_t, db_expr_t *);
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int db_elf_line_at_pc(Elf_Sym *, char **, int *, db_expr_t);
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void db_elf_sym_forall(db_forall_func_t db_forall_func, void *);
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bool db_dwarf_line_at_pc(const char *, size_t, uintptr_t,
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const char **, const char **, int *);
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int db_ctf_func_numargs(Elf_Sym *);
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#endif /* _DDB_DB_SYM_H_ */
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