WebSVN – HelenOS-historic – Diff – /kernel/trunk/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.
 */
 
 /** @defgroup debug Debug
 * @ingroup kernel
 * @{
 * @}
 */
 
 
 /** @addtogroup genericdebug generic
 * @ingroup debug
 * @{
 */
 
/**
 * @file
 * @brief   Kernel symbol resolver.
 */
 
#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 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(__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;
}
 
/** 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)
{
    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
 */
__address get_symbol_addr(const char *name)
{
    count_t found = 0;
    __address addr = NULL;
    char *hint;
    int i;
 
    i = 0;
    while ((hint=symtab_search_one(name, &i))) {
        if (!strlen(hint)) {
            addr =  __u64_le2host(symbol_table[i].address_le);
            found++;
        }
        i++;
    }
    if (found > 1)
        return ((__address) -1);
    return addr;
}
 
/** Find symbols that match parameter and prints them */
void symtab_print_search(const char *name)
{
    int i;
    __address addr;
    char *realname;
 
 
    i = 0;
    while (symtab_search_one(name, &i)) {
        addr =  __u64_le2host(symbol_table[i].address_le);
        realname = symbol_table[i].symbol_name;
        printf("%.*p: %s\n", sizeof(__address) * 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 1264	Rev 1702
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	/** @defgroup debug Debug
-		30	* @ingroup kernel
-		31	* @{
-		32	* @}
-		33	*/
-		34
-		35
-		36	/** @addtogroup genericdebug generic
-		37	* @ingroup debug
-		38	* @{
-		39	*/
-		40
29	/**	41	/**
30	* @file symtab.c	42	* @file
31	* @brief Kernel symbol resolver.	43	* @brief Kernel symbol resolver.
32	*/	44	*/
33		45
34	#include <symtab.h>	46	#include <symtab.h>
35	#include <typedefs.h>	47	#include <typedefs.h>
36	#include <arch/byteorder.h>	48	#include <arch/byteorder.h>
37	#include <func.h>	49	#include <func.h>
38	#include <print.h>	50	#include <print.h>
39		51
40	/** Return entry that seems most likely to correspond to argument.	52	/** Return entry that seems most likely to correspond to argument.
41	*	53	*
42	* Return entry that seems most likely to correspond	54	* Return entry that seems most likely to correspond
43	* to address passed in the argument.	55	* to address passed in the argument.
44	*	56	*
45	* @param addr Address.	57	* @param addr Address.
46	*	58	*
47	* @return Pointer to respective symbol string on success, NULL otherwise.	59	* @return Pointer to respective symbol string on success, NULL otherwise.
48	*/	60	*/
49	char * get_symtab_entry(__native addr)	61	char * get_symtab_entry(__native addr)
50	{	62	{
51	count_t i;	63	count_t i;
52		64
53	for (i=1;symbol_table[i].address_le;++i) {	65	for (i=1;symbol_table[i].address_le;++i) {
54	if (addr < __u64_le2host(symbol_table[i].address_le))	66	if (addr < __u64_le2host(symbol_table[i].address_le))
55	break;	67	break;
56	}	68	}
57	if (addr >= __u64_le2host(symbol_table[i-1].address_le))	69	if (addr >= __u64_le2host(symbol_table[i-1].address_le))
58	return symbol_table[i-1].symbol_name;	70	return symbol_table[i-1].symbol_name;
59	return NULL;	71	return NULL;
60	}	72	}
61		73
62	/** Find symbols that match the parameter forward and print them.	74	/** Find symbols that match the parameter forward and print them.
63	*	75	*
64	* @param name - search string	76	* @param name - search string
65	* @param startpos - starting position, changes to found position	77	* @param startpos - starting position, changes to found position
66	* @return Pointer to the part of string that should be completed or NULL	78	* @return Pointer to the part of string that should be completed or NULL
67	*/	79	*/
68	static char * symtab_search_one(const char name, int startpos)	80	static char * symtab_search_one(const char name, int startpos)
69	{	81	{
70	int namelen = strlen(name);	82	int namelen = strlen(name);
71	char *curname;	83	char *curname;
72	int i,j;	84	int i,j;
73	int colonoffset = -1;	85	int colonoffset = -1;
74		86
75	for (i=0;name[i];i++)	87	for (i=0;name[i];i++)
76	if (name[i] == ':') {	88	if (name[i] == ':') {
77	colonoffset = i;	89	colonoffset = i;
78	break;	90	break;
79	}	91	}
80		92
81	for (i=*startpos;symbol_table[i].address_le;++i) {	93	for (i=*startpos;symbol_table[i].address_le;++i) {
82	/* Find a ':' in name */	94	/* Find a ':' in name */
83	curname = symbol_table[i].symbol_name;	95	curname = symbol_table[i].symbol_name;
84	for (j=0; curname[j] && curname[j] != ':'; j++)	96	for (j=0; curname[j] && curname[j] != ':'; j++)
85	;	97	;
86	if (!curname[j])	98	if (!curname[j])
87	continue;	99	continue;
88	j -= colonoffset;	100	j -= colonoffset;
89	curname += j;	101	curname += j;
90	if (strlen(curname) < namelen)	102	if (strlen(curname) < namelen)
91	continue;	103	continue;
92	if (strncmp(curname, name, namelen) == 0) {	104	if (strncmp(curname, name, namelen) == 0) {
93	*startpos = i;	105	*startpos = i;
94	return curname+namelen;	106	return curname+namelen;
95	}	107	}
96	}	108	}
97	return NULL;	109	return NULL;
98	}	110	}
99		111
100	/** Return address that corresponds to the entry	112	/** Return address that corresponds to the entry
101	*	113	*
102	* Search symbol table, and if there is one match, return it	114	* Search symbol table, and if there is one match, return it
103	*	115	*
104	* @param name Name of the symbol	116	* @param name Name of the symbol
105	* @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol	117	* @return 0 - Not found, -1 - Duplicate symbol, other - address of symbol
106	*/	118	*/
107	__address get_symbol_addr(const char *name)	119	__address get_symbol_addr(const char *name)
108	{	120	{
109	count_t found = 0;	121	count_t found = 0;
110	__address addr = NULL;	122	__address addr = NULL;
111	char *hint;	123	char *hint;
112	int i;	124	int i;
113		125
114	i = 0;	126	i = 0;
115	while ((hint=symtab_search_one(name, &i))) {	127	while ((hint=symtab_search_one(name, &i))) {
116	if (!strlen(hint)) {	128	if (!strlen(hint)) {
117	addr = __u64_le2host(symbol_table[i].address_le);	129	addr = __u64_le2host(symbol_table[i].address_le);
118	found++;	130	found++;
119	}	131	}
120	i++;	132	i++;
121	}	133	}
122	if (found > 1)	134	if (found > 1)
123	return ((__address) -1);	135	return ((__address) -1);
124	return addr;	136	return addr;
125	}	137	}
126		138
127	/** Find symbols that match parameter and prints them */	139	/** Find symbols that match parameter and prints them */
128	void symtab_print_search(const char *name)	140	void symtab_print_search(const char *name)
129	{	141	{
130	int i;	142	int i;
131	__address addr;	143	__address addr;
132	char *realname;	144	char *realname;
133		145
134		146
135	i = 0;	147	i = 0;
136	while (symtab_search_one(name, &i)) {	148	while (symtab_search_one(name, &i)) {
137	addr = __u64_le2host(symbol_table[i].address_le);	149	addr = __u64_le2host(symbol_table[i].address_le);
138	realname = symbol_table[i].symbol_name;	150	realname = symbol_table[i].symbol_name;
139	printf("%.p: %s\n", sizeof(__address) 2, addr, realname);	151	printf("%.p: %s\n", sizeof(__address) 2, addr, realname);
140	i++;	152	i++;
141	}	153	}
142	}	154	}
143		155
144	/** Symtab completion	156	/** Symtab completion
145	*	157	*
146	* @param input - Search string, completes to symbol name	158	* @param input - Search string, completes to symbol name
147	* @returns - 0 - nothing found, 1 - success, >1 print duplicates	159	* @returns - 0 - nothing found, 1 - success, >1 print duplicates
148	*/	160	*/
149	int symtab_compl(char *input)	161	int symtab_compl(char *input)
150	{	162	{
151	char output[MAX_SYMBOL_NAME+1];	163	char output[MAX_SYMBOL_NAME+1];
152	int startpos = 0;	164	int startpos = 0;
153	char *foundtxt;	165	char *foundtxt;
154	int found = 0;	166	int found = 0;
155	int i;	167	int i;
156	char *name = input;	168	char *name = input;
157		169
158	/* Allow completion of pointers */	170	/* Allow completion of pointers */
159	if (name[0] == '*' \|\| name[0] == '&')	171	if (name[0] == '*' \|\| name[0] == '&')
160	name++;	172	name++;
161		173
162	/* Do not print everything */	174	/* Do not print everything */
163	if (!strlen(name))	175	if (!strlen(name))
164	return 0;	176	return 0;
165		177
166		178
167	output[0] = '\0';	179	output[0] = '\0';
168		180
169	while ((foundtxt = symtab_search_one(name, &startpos))) {	181	while ((foundtxt = symtab_search_one(name, &startpos))) {
170	startpos++;	182	startpos++;
171	if (!found)	183	if (!found)
172	strncpy(output, foundtxt, strlen(foundtxt)+1);	184	strncpy(output, foundtxt, strlen(foundtxt)+1);
173	else {	185	else {
174	for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)	186	for (i=0; output[i] && foundtxt[i] && output[i]==foundtxt[i]; i++)
175	;	187	;
176	output[i] = '\0';	188	output[i] = '\0';
177	}	189	}
178	found++;	190	found++;
179	}	191	}
180	if (!found)	192	if (!found)
181	return 0;	193	return 0;
182		194
183	if (found > 1 && !strlen(output)) {	195	if (found > 1 && !strlen(output)) {
184	printf("\n");	196	printf("\n");
185	startpos = 0;	197	startpos = 0;
186	while ((foundtxt = symtab_search_one(name, &startpos))) {	198	while ((foundtxt = symtab_search_one(name, &startpos))) {
187	printf("%s\n", symbol_table[startpos].symbol_name);	199	printf("%s\n", symbol_table[startpos].symbol_name);
188	startpos++;	200	startpos++;
189	}	201	}
190	}	202	}
191	strncpy(input, output, MAX_SYMBOL_NAME);	203	strncpy(input, output, MAX_SYMBOL_NAME);
192	return found;	204	return found;
193		205
194	}	206	}
-		207
-		208	/** @}
-		209	*/
-		210
195		211

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(root)/kernel/trunk/generic/src/debug/symtab.c – Rev 1264 → 1702