WebSVN – HelenOS – Diff – /trunk/kernel/generic/src/debug/symtab.c


/*
 * 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.
 */
 
/** @addtogroup genericdebug
 * @{
 */
 
/**
 * @file
 * @brief   Kernel symbol resolver.
 */
 
#include <symtab.h>
#include <arch/byteorder.h>
#include <func.h>
#include <print.h>
 
/** Return entry that seems most likely to correspond to argument.
 *
 * 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(unative_t addr)
{
    count_t i;
 
    for (i=1;symbol_table[i].address_le;++i) {
        if (addr < uint64_t_le2host(symbol_table[i].address_le))
            break;
    }
    if (addr >= uint64_t_le2host(symbol_table[i-1].address_le))
        return symbol_table[i-1].symbol_name;
    return NULL;
}
 
/** Find symbols that match the parameter forward and print them.
 *
 * @param name - search string
 * @param startpos - starting position, changes to found position
 * @return Pointer to the part of string that should be completed or NULL
 */
static char * symtab_search_one(const char *name, int *startpos)
{
    unsigned int namelen = strlen(name);
    char *curname;
    int i,j;
    int colonoffset = -1;
 
    for (i=0;name[i];i++)
        if (name[i] == ':') {
            colonoffset = i;
            break;
        }
 
    for (i=*startpos;symbol_table[i].address_le;++i) {
        /* Find a ':' in name */
        curname = symbol_table[i].symbol_name;
        for (j=0; curname[j] && curname[j] != ':'; j++)
            ;
        if (!curname[j])
            continue;
        j -= colonoffset;
        curname += j;
        if (strlen(curname) < namelen)
            continue;
        if (strncmp(curname, name, namelen) == 0) {
            *startpos = i;
            return curname+namelen;
        }
    }
    return NULL;
}
 
/** Return address that corresponds to the entry
 *
 * Search symbol table, and if there is one match, return it
 *
 * @param name Name of the symbol
 * @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
 */
uintptr_t get_symbol_addr(const char *name)
{
    count_t found = 0;
    uintptr_t addr = NULL;
    char *hint;
    int i;
 
    i = 0;
    while ((hint=symtab_search_one(name, &i))) {
        if (!strlen(hint)) {
            addr =  uint64_t_le2host(symbol_table[i].address_le);
            found++;
        }
        i++;
    }
    if (found > 1)
        return ((uintptr_t) -1);
    return addr;
}
 
/** Find symbols that match parameter and prints them */
void symtab_print_search(const char *name)
{
    int i;
    uintptr_t addr;
    char *realname;
 
 
    i = 0;
    while (symtab_search_one(name, &i)) {
        addr =  uint64_t_le2host(symbol_table[i].address_le);
        realname = symbol_table[i].symbol_name;
        printf("%.*p: %s\n", sizeof(uintptr_t) * 2, addr, realname);
        i++;
    }
}
 
/** Symtab completion
 *
 * @param input - Search string, completes to symbol name
 * @returns - 0 - nothing found, 1 - success, >1 print duplicates
 */
int symtab_compl(char *input)
{
    char output[MAX_SYMBOL_NAME+1];
    int startpos = 0;
    char *foundtxt;
    int found = 0;
    int i;
    char *name = input;
 
    /* Allow completion of pointers  */
    if (name[0] == '*' || name[0] == '&')
        name++;
 
    /* Do not print everything */
    if (!strlen(name))
        return 0;
   
 
    output[0] = '\0';
 
    while ((foundtxt = symtab_search_one(name, &startpos))) {
        startpos++;
        if (!found)
            strncpy(output, foundtxt, strlen(foundtxt)+1);
        else {
            for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)
                ;
            output[i] = '\0';
        }
        found++;
    }
    if (!found)
        return 0;
 
    if (found > 1 && !strlen(output)) {
        printf("\n");
        startpos = 0;
        while ((foundtxt = symtab_search_one(name, &startpos))) {
            printf("%s\n", symbol_table[startpos].symbol_name);
            startpos++;
        }
    }
    strncpy(input, output, MAX_SYMBOL_NAME);
    return found;
   
}
 
/** @}
 */
 

Rev 2089	Rev 2745
1	/*	1	/*
2	* Copyright (c) 2005 Ondrej Palkovsky	2	* Copyright (c) 2005 Ondrej Palkovsky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	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	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.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	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	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	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	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	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	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.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup genericdebug	29	/** @addtogroup genericdebug
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/**	33	/**
34	* @file	34	* @file
35	* @brief Kernel symbol resolver.	35	* @brief Kernel symbol resolver.
36	*/	36	*/
37		37
38	#include <symtab.h>	38	#include <symtab.h>
39	#include <arch/byteorder.h>	39	#include <arch/byteorder.h>
40	#include <func.h>	40	#include <func.h>
41	#include <print.h>	41	#include <print.h>
42		42
43	/** Return entry that seems most likely to correspond to argument.	43	/** Return entry that seems most likely to correspond to argument.
44	*	44	*
45	* Return entry that seems most likely to correspond	45	* Return entry that seems most likely to correspond
46	* to address passed in the argument.	46	* to address passed in the argument.
47	*	47	*
48	* @param addr Address.	48	* @param addr Address.
49	*	49	*
50	* @return Pointer to respective symbol string on success, NULL otherwise.	50	* @return Pointer to respective symbol string on success, NULL otherwise.
51	*/	51	*/
52	char * get_symtab_entry(unative_t addr)	52	char * get_symtab_entry(unative_t addr)
53	{	53	{
54	count_t i;	54	count_t i;
55		55
56	for (i=1;symbol_table[i].address_le;++i) {	56	for (i=1;symbol_table[i].address_le;++i) {
57	if (addr < uint64_t_le2host(symbol_table[i].address_le))	57	if (addr < uint64_t_le2host(symbol_table[i].address_le))
58	break;	58	break;
59	}	59	}
60	if (addr >= uint64_t_le2host(symbol_table[i-1].address_le))	60	if (addr >= uint64_t_le2host(symbol_table[i-1].address_le))
61	return symbol_table[i-1].symbol_name;	61	return symbol_table[i-1].symbol_name;
62	return NULL;	62	return NULL;
63	}	63	}
64		64
65	/** Find symbols that match the parameter forward and print them.	65	/** Find symbols that match the parameter forward and print them.
66	*	66	*
67	* @param name - search string	67	* @param name - search string
68	* @param startpos - starting position, changes to found position	68	* @param startpos - starting position, changes to found position
69	* @return Pointer to the part of string that should be completed or NULL	69	* @return Pointer to the part of string that should be completed or NULL
70	*/	70	*/
71	static char * symtab_search_one(const char name, int startpos)	71	static char * symtab_search_one(const char name, int startpos)
72	{	72	{
73	int namelen = strlen(name);	73	unsigned int namelen = strlen(name);
74	char *curname;	74	char *curname;
75	int i,j;	75	int i,j;
76	int colonoffset = -1;	76	int colonoffset = -1;
77		77
78	for (i=0;name[i];i++)	78	for (i=0;name[i];i++)
79	if (name[i] == ':') {	79	if (name[i] == ':') {
80	colonoffset = i;	80	colonoffset = i;
81	break;	81	break;
82	}	82	}
83		83
84	for (i=*startpos;symbol_table[i].address_le;++i) {	84	for (i=*startpos;symbol_table[i].address_le;++i) {
85	/* Find a ':' in name */	85	/* Find a ':' in name */
86	curname = symbol_table[i].symbol_name;	86	curname = symbol_table[i].symbol_name;
87	for (j=0; curname[j] && curname[j] != ':'; j++)	87	for (j=0; curname[j] && curname[j] != ':'; j++)
88	;	88	;
89	if (!curname[j])	89	if (!curname[j])
90	continue;	90	continue;
91	j -= colonoffset;	91	j -= colonoffset;
92	curname += j;	92	curname += j;
93	if (strlen(curname) < namelen)	93	if (strlen(curname) < namelen)
94	continue;	94	continue;
95	if (strncmp(curname, name, namelen) == 0) {	95	if (strncmp(curname, name, namelen) == 0) {
96	*startpos = i;	96	*startpos = i;
97	return curname+namelen;	97	return curname+namelen;
98	}	98	}
99	}	99	}
100	return NULL;	100	return NULL;
101	}	101	}
102		102
103	/** Return address that corresponds to the entry	103	/** Return address that corresponds to the entry
104	*	104	*
105	* Search symbol table, and if there is one match, return it	105	* Search symbol table, and if there is one match, return it
106	*	106	*
107	* @param name Name of the symbol	107	* @param name Name of the symbol
108	* @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol	108	* @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
109	*/	109	*/
110	uintptr_t get_symbol_addr(const char *name)	110	uintptr_t get_symbol_addr(const char *name)
111	{	111	{
112	count_t found = 0;	112	count_t found = 0;
113	uintptr_t addr = NULL;	113	uintptr_t addr = NULL;
114	char *hint;	114	char *hint;
115	int i;	115	int i;
116		116
117	i = 0;	117	i = 0;
118	while ((hint=symtab_search_one(name, &i))) {	118	while ((hint=symtab_search_one(name, &i))) {
119	if (!strlen(hint)) {	119	if (!strlen(hint)) {
120	addr = uint64_t_le2host(symbol_table[i].address_le);	120	addr = uint64_t_le2host(symbol_table[i].address_le);
121	found++;	121	found++;
122	}	122	}
123	i++;	123	i++;
124	}	124	}
125	if (found > 1)	125	if (found > 1)
126	return ((uintptr_t) -1);	126	return ((uintptr_t) -1);
127	return addr;	127	return addr;
128	}	128	}
129		129
130	/** Find symbols that match parameter and prints them */	130	/** Find symbols that match parameter and prints them */
131	void symtab_print_search(const char *name)	131	void symtab_print_search(const char *name)
132	{	132	{
133	int i;	133	int i;
134	uintptr_t addr;	134	uintptr_t addr;
135	char *realname;	135	char *realname;
136		136
137		137
138	i = 0;	138	i = 0;
139	while (symtab_search_one(name, &i)) {	139	while (symtab_search_one(name, &i)) {
140	addr = uint64_t_le2host(symbol_table[i].address_le);	140	addr = uint64_t_le2host(symbol_table[i].address_le);
141	realname = symbol_table[i].symbol_name;	141	realname = symbol_table[i].symbol_name;
142	printf("%.p: %s\n", sizeof(uintptr_t) 2, addr, realname);	142	printf("%.p: %s\n", sizeof(uintptr_t) 2, addr, realname);
143	i++;	143	i++;
144	}	144	}
145	}	145	}
146		146
147	/** Symtab completion	147	/** Symtab completion
148	*	148	*
149	* @param input - Search string, completes to symbol name	149	* @param input - Search string, completes to symbol name
150	* @returns - 0 - nothing found, 1 - success, >1 print duplicates	150	* @returns - 0 - nothing found, 1 - success, >1 print duplicates
151	*/	151	*/
152	int symtab_compl(char *input)	152	int symtab_compl(char *input)
153	{	153	{
154	char output[MAX_SYMBOL_NAME+1];	154	char output[MAX_SYMBOL_NAME+1];
155	int startpos = 0;	155	int startpos = 0;
156	char *foundtxt;	156	char *foundtxt;
157	int found = 0;	157	int found = 0;
158	int i;	158	int i;
159	char *name = input;	159	char *name = input;
160		160
161	/* Allow completion of pointers */	161	/* Allow completion of pointers */
162	if (name[0] == '*' \|\| name[0] == '&')	162	if (name[0] == '*' \|\| name[0] == '&')
163	name++;	163	name++;
164		164
165	/* Do not print everything */	165	/* Do not print everything */
166	if (!strlen(name))	166	if (!strlen(name))
167	return 0;	167	return 0;
168		168
169		169
170	output[0] = '\0';	170	output[0] = '\0';
171		171
172	while ((foundtxt = symtab_search_one(name, &startpos))) {	172	while ((foundtxt = symtab_search_one(name, &startpos))) {
173	startpos++;	173	startpos++;
174	if (!found)	174	if (!found)
175	strncpy(output, foundtxt, strlen(foundtxt)+1);	175	strncpy(output, foundtxt, strlen(foundtxt)+1);
176	else {	176	else {
177	for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)	177	for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)
178	;	178	;
179	output[i] = '\0';	179	output[i] = '\0';
180	}	180	}
181	found++;	181	found++;
182	}	182	}
183	if (!found)	183	if (!found)
184	return 0;	184	return 0;
185		185
186	if (found > 1 && !strlen(output)) {	186	if (found > 1 && !strlen(output)) {
187	printf("\n");	187	printf("\n");
188	startpos = 0;	188	startpos = 0;
189	while ((foundtxt = symtab_search_one(name, &startpos))) {	189	while ((foundtxt = symtab_search_one(name, &startpos))) {
190	printf("%s\n", symbol_table[startpos].symbol_name);	190	printf("%s\n", symbol_table[startpos].symbol_name);
191	startpos++;	191	startpos++;
192	}	192	}
193	}	193	}
194	strncpy(input, output, MAX_SYMBOL_NAME);	194	strncpy(input, output, MAX_SYMBOL_NAME);
195	return found;	195	return found;
196		196
197	}	197	}
198		198
199	/** @}	199	/** @}
200	*/	200	*/
201		201

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(root)/trunk/kernel/generic/src/debug/symtab.c – Rev 2089 → 2745