Subversion Repositories HelenOS

Rev

Rev 602 | Rev 625 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
268 palkovsky 1
/*
2
 * Copyright (C) 2005 Ondrej Palkovsky
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
7
 * are met:
8
 *
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
28
 
29
 
30
#include <symtab.h>
31
#include <typedefs.h>
292 jermar 32
#include <arch/byteorder.h>
582 palkovsky 33
#include <func.h>
34
#include <print.h>
268 palkovsky 35
 
404 jermar 36
/** Return entry that seems most likely to correspond to address
268 palkovsky 37
 *
404 jermar 38
 * Return entry that seems most likely to correspond
39
 * to address passed in the argument.
40
 *
41
 * @param addr Address.
42
 *
43
 * @return Pointer to respective symbol string on success, NULL otherwise.
268 palkovsky 44
 */
45
char * get_symtab_entry(__native addr)
46
{
47
    count_t i;
48
 
292 jermar 49
    for (i=1;symbol_table[i].address_le;++i) {
338 jermar 50
        if (addr < __u64_le2host(symbol_table[i].address_le))
268 palkovsky 51
            break;
52
    }
338 jermar 53
    if (addr >= __u64_le2host(symbol_table[i-1].address_le))
268 palkovsky 54
        return symbol_table[i-1].symbol_name;
55
    return NULL;
56
}
582 palkovsky 57
 
601 palkovsky 58
/** Find symbols that match the parameter forward and print them
59
 *
60
 * @param name - search string
61
 * @param startpos - starting position, changes to found position
62
 * @return Pointer to the part of string that should be completed or NULL
63
 */
64
static char * symtab_search_one(const char *name, int *startpos)
65
{
66
    int namelen = strlen(name);
67
    char *curname;
68
    int i,j;
69
    char *foundsym = NULL;
70
    int foundpos = 0;
71
    int colonoffset = -1;
72
 
73
    for (i=0;name[i];i++)
74
        if (name[i] == ':') {
75
            colonoffset = i;
76
            break;
77
        }
78
 
79
    for (i=*startpos;symbol_table[i].address_le;++i) {
80
        /* Find a ':' in name */
81
        curname = symbol_table[i].symbol_name;
82
        for (j=0; curname[j] && curname[j] != ':'; j++)
83
            ;
84
        if (!curname[j])
85
            continue;
86
        j -= colonoffset;
87
        curname += j;
88
        if (strlen(curname) < namelen)
89
            continue;
90
        if (strncmp(curname, name, namelen) == 0) {
91
            *startpos = i;
92
            return curname+namelen;
93
        }
94
    }
95
    return NULL;
96
}
97
 
582 palkovsky 98
/** Return address that corresponds to the entry
99
 *
601 palkovsky 100
 * Search symbol table, and if there is one match, return it
582 palkovsky 101
 *
102
 * @param name Name of the symbol
103
 * @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
104
 */
105
__address get_symbol_addr(const char *name)
106
{
107
    count_t found = 0;
601 palkovsky 108
    __address addr = NULL;
109
    char *hint;
110
    int i;
582 palkovsky 111
 
601 palkovsky 112
    i = 0;
113
    while ((hint=symtab_search_one(name, &i))) {
114
        if (!strlen(hint)) {
115
            addr =  __u64_le2host(symbol_table[i].address_le);
582 palkovsky 116
            found++;
117
        }
601 palkovsky 118
        i++;
582 palkovsky 119
    }
601 palkovsky 120
    if (found > 1)
121
        return ((__address) -1);
122
    return addr;
582 palkovsky 123
}
124
 
601 palkovsky 125
/** Find symbols that match parameter and prints them */
582 palkovsky 126
void symtab_print_search(const char *name)
127
{
128
    int i;
129
    __address addr;
130
    char *realname;
131
 
601 palkovsky 132
 
133
    i = 0;
134
    while (symtab_search_one(name, &i)) {
135
        addr =  __u64_le2host(symbol_table[i].address_le);
136
        realname = symbol_table[i].symbol_name;
137
        printf("0x%p: %s\n", addr, realname);
138
        i++;
139
    }
140
}
141
 
142
/** Symtab completion
143
 *
144
 * @param name - Search string, completes to symbol name
145
 * @returns - 0 - nothing found, 1 - success, >1 print duplicates
146
 */
616 palkovsky 147
int symtab_compl(char *input)
601 palkovsky 148
{
149
    char output[MAX_SYMBOL_NAME+1];
150
    int startpos = 0;
151
    char *foundtxt;
152
    int found = 0;
153
    int i;
616 palkovsky 154
    char *name = input;
601 palkovsky 155
 
616 palkovsky 156
    /* Allow completion of pointers  */
157
    if (name[0] == '*' || name[0] == '&')
158
        name++;
159
 
601 palkovsky 160
    /* Do not print everything */
161
    if (!strlen(name))
162
        return 0;
616 palkovsky 163
 
601 palkovsky 164
 
165
    output[0] = '\0';
166
 
167
    while ((foundtxt = symtab_search_one(name, &startpos))) {
168
        startpos++;
169
        if (!found)
170
            strncpy(output, foundtxt, strlen(foundtxt)+1);
171
        else {
172
            for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)
173
                ;
174
            output[i] = '\0';
582 palkovsky 175
        }
601 palkovsky 176
        found++;
582 palkovsky 177
    }
601 palkovsky 178
    if (!found)
179
        return 0;
180
 
602 palkovsky 181
    if (found > 1 && !strlen(output)) {
601 palkovsky 182
        printf("\n");
183
        startpos = 0;
184
        while ((foundtxt = symtab_search_one(name, &startpos))) {
185
            printf("%s\n", symbol_table[startpos].symbol_name);
186
            startpos++;
187
        }
188
    }
616 palkovsky 189
    strncpy(input, output, MAX_SYMBOL_NAME);
601 palkovsky 190
    return found;
191
 
582 palkovsky 192
}