Subversion Repositories HelenOS

Rev

Rev 2797 | Rev 4137 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed

Rev Author Line No. Line
268 palkovsky 1
/*
2071 jermar 2
 * Copyright (c) 2005 Ondrej Palkovsky
268 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
 
1888 jermar 29
/** @addtogroup genericdebug
1702 cejka 30
 * @{
31
 */
32
 
1264 jermar 33
/**
1702 cejka 34
 * @file
1264 jermar 35
 * @brief   Kernel symbol resolver.
36
 */
268 palkovsky 37
 
38
#include <symtab.h>
2797 jermar 39
#include <byteorder.h>
582 palkovsky 40
#include <func.h>
41
#include <print.h>
3059 decky 42
#include <arch/types.h>
43
#include <typedefs.h>
268 palkovsky 44
 
1264 jermar 45
/** Return entry that seems most likely to correspond to argument.
268 palkovsky 46
 *
404 jermar 47
 * Return entry that seems most likely to correspond
48
 * to address passed in the argument.
49
 *
50
 * @param addr Address.
51
 *
52
 * @return Pointer to respective symbol string on success, NULL otherwise.
268 palkovsky 53
 */
1780 jermar 54
char * get_symtab_entry(unative_t addr)
268 palkovsky 55
{
56
    count_t i;
57
 
2797 jermar 58
    for (i = 1; symbol_table[i].address_le; ++i) {
1780 jermar 59
        if (addr < uint64_t_le2host(symbol_table[i].address_le))
268 palkovsky 60
            break;
61
    }
2797 jermar 62
    if (addr >= uint64_t_le2host(symbol_table[i - 1].address_le))
63
        return symbol_table[i - 1].symbol_name;
268 palkovsky 64
    return NULL;
65
}
582 palkovsky 66
 
1264 jermar 67
/** Find symbols that match the parameter forward and print them.
601 palkovsky 68
 *
69
 * @param name - search string
70
 * @param startpos - starting position, changes to found position
71
 * @return Pointer to the part of string that should be completed or NULL
72
 */
73
static char * symtab_search_one(const char *name, int *startpos)
74
{
2745 decky 75
    unsigned int namelen = strlen(name);
601 palkovsky 76
    char *curname;
2797 jermar 77
    int i, j;
601 palkovsky 78
    int colonoffset = -1;
79
 
2797 jermar 80
    for (i = 0; name[i]; i++)
601 palkovsky 81
        if (name[i] == ':') {
82
            colonoffset = i;
83
            break;
84
        }
85
 
2797 jermar 86
    for (i = *startpos; symbol_table[i].address_le; ++i) {
601 palkovsky 87
        /* Find a ':' in name */
88
        curname = symbol_table[i].symbol_name;
2797 jermar 89
        for (j = 0; curname[j] && curname[j] != ':'; j++)
601 palkovsky 90
            ;
91
        if (!curname[j])
92
            continue;
93
        j -= colonoffset;
94
        curname += j;
95
        if (strlen(curname) < namelen)
96
            continue;
97
        if (strncmp(curname, name, namelen) == 0) {
98
            *startpos = i;
2797 jermar 99
            return curname + namelen;
601 palkovsky 100
        }
101
    }
102
    return NULL;
103
}
104
 
582 palkovsky 105
/** Return address that corresponds to the entry
106
 *
601 palkovsky 107
 * Search symbol table, and if there is one match, return it
582 palkovsky 108
 *
109
 * @param name Name of the symbol
110
 * @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
111
 */
1780 jermar 112
uintptr_t get_symbol_addr(const char *name)
582 palkovsky 113
{
114
    count_t found = 0;
1780 jermar 115
    uintptr_t addr = NULL;
601 palkovsky 116
    char *hint;
117
    int i;
582 palkovsky 118
 
601 palkovsky 119
    i = 0;
2797 jermar 120
    while ((hint = symtab_search_one(name, &i))) {
601 palkovsky 121
        if (!strlen(hint)) {
1780 jermar 122
            addr =  uint64_t_le2host(symbol_table[i].address_le);
582 palkovsky 123
            found++;
124
        }
601 palkovsky 125
        i++;
582 palkovsky 126
    }
601 palkovsky 127
    if (found > 1)
1780 jermar 128
        return ((uintptr_t) -1);
601 palkovsky 129
    return addr;
582 palkovsky 130
}
131
 
601 palkovsky 132
/** Find symbols that match parameter and prints them */
582 palkovsky 133
void symtab_print_search(const char *name)
134
{
135
    int i;
1780 jermar 136
    uintptr_t addr;
582 palkovsky 137
    char *realname;
138
 
601 palkovsky 139
 
140
    i = 0;
141
    while (symtab_search_one(name, &i)) {
1780 jermar 142
        addr =  uint64_t_le2host(symbol_table[i].address_le);
601 palkovsky 143
        realname = symbol_table[i].symbol_name;
3059 decky 144
        printf("%p: %s\n", addr, realname);
601 palkovsky 145
        i++;
146
    }
147
}
148
 
149
/** Symtab completion
150
 *
1248 jermar 151
 * @param input - Search string, completes to symbol name
601 palkovsky 152
 * @returns - 0 - nothing found, 1 - success, >1 print duplicates
153
 */
616 palkovsky 154
int symtab_compl(char *input)
601 palkovsky 155
{
2797 jermar 156
    char output[MAX_SYMBOL_NAME + 1];
601 palkovsky 157
    int startpos = 0;
158
    char *foundtxt;
159
    int found = 0;
160
    int i;
616 palkovsky 161
    char *name = input;
601 palkovsky 162
 
616 palkovsky 163
    /* Allow completion of pointers  */
164
    if (name[0] == '*' || name[0] == '&')
165
        name++;
166
 
601 palkovsky 167
    /* Do not print everything */
168
    if (!strlen(name))
169
        return 0;
616 palkovsky 170
 
601 palkovsky 171
 
172
    output[0] = '\0';
173
 
174
    while ((foundtxt = symtab_search_one(name, &startpos))) {
175
        startpos++;
176
        if (!found)
2797 jermar 177
            strncpy(output, foundtxt, strlen(foundtxt) + 1);
601 palkovsky 178
        else {
2797 jermar 179
            for (i = 0; output[i] && foundtxt[i] &&
180
                 output[i] == foundtxt[i]; i++)
601 palkovsky 181
                ;
182
            output[i] = '\0';
582 palkovsky 183
        }
601 palkovsky 184
        found++;
582 palkovsky 185
    }
601 palkovsky 186
    if (!found)
187
        return 0;
188
 
602 palkovsky 189
    if (found > 1 && !strlen(output)) {
601 palkovsky 190
        printf("\n");
191
        startpos = 0;
192
        while ((foundtxt = symtab_search_one(name, &startpos))) {
193
            printf("%s\n", symbol_table[startpos].symbol_name);
194
            startpos++;
195
        }
196
    }
616 palkovsky 197
    strncpy(input, output, MAX_SYMBOL_NAME);
601 palkovsky 198
    return found;
199
 
582 palkovsky 200
}
1702 cejka 201
 
1888 jermar 202
/** @}
1702 cejka 203
 */