source: mainline/generic/src/debug/symtab.c@ 7910cff

/*
 * Copyright (C) 2005 Ondrej Palkovsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


#include <symtab.h>
#include <typedefs.h>
#include <arch/byteorder.h>
#include <func.h>
#include <print.h>

/** Return entry that seems most likely to correspond to address
 *
 * Return entry that seems most likely to correspond
 * to address passed in the argument.
 *
 * @param addr Address.
 *
 * @return Pointer to respective symbol string on success, NULL otherwise.
 */
char * get_symtab_entry(__native addr)
{
        count_t i;

        for (i=1;symbol_table[i].address_le;++i) {
                if (addr < __u64_le2host(symbol_table[i].address_le))
                        break;
        }
        if (addr >= __u64_le2host(symbol_table[i-1].address_le))
                return symbol_table[i-1].symbol_name;
        return NULL;
}

/** Return address that corresponds to the entry
 *
 * Search symbol table, and if the address ENDS with
 * the parameter, return value
 *
 * @param name Name of the symbol
 * @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
 */
__address get_symbol_addr(const char *name)
{
        count_t i;
        count_t found = 0;
        count_t found_pos;

        count_t nmlen = strlen(name);
        count_t slen;

        for (i=0;symbol_table[i].address_le;++i) {
                slen = strlen(symbol_table[i].symbol_name);
                if (slen < nmlen)
                        continue;
                if (strncmp(name, symbol_table[i].symbol_name + (slen-nmlen),
                            nmlen) == 0) {
                        found++;
                        found_pos = i;
                }
        }
        if (found == 0)
                return NULL;
        if (found == 1)
                return __u64_le2host(symbol_table[found_pos].address_le);
        return ((__address) -1);
}

void symtab_print_search(const char *name)
{
        int i;
        count_t nmlen = strlen(name);
        count_t slen;
        __address addr;
        char *realname;

        for (i=0;symbol_table[i].address_le;++i) {
                slen = strlen(symbol_table[i].symbol_name);
                if (slen < nmlen)
                        continue;
                if (strncmp(name, symbol_table[i].symbol_name + (slen-nmlen),
                            nmlen) == 0) {
                        addr =  __u64_le2host(symbol_table[i].address_le);
                        realname = symbol_table[i].symbol_name;
                        printf("0x%p: %s\n", addr, realname);
                }
        }
}