fcn.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994, by Sun Microsytems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Includes
*/
#include <stdlib.h>
#include <string.h>
#include <libintl.h>
#include "queue.h"
#include "set.h"
#include "fcn.h"
#include "new.h"
#include "source.h"
/*
* Globals
*/
static queue_node_t g_fcnlist = {
&g_fcnlist,
&g_fcnlist};
/*
* Forward Declarations
*/
static void fcn_destroy(fcn_t * fcn_p);
static void fcn_print(FILE * stream, fcn_t * fcn_p);
/*
* fcn() - builds a function block and inserts it on the global list.
*/
#define NSYMS 1
void
fcn(char *name_p, char *entry_name_p)
{
fcn_t *new_p;
fcn_t *old_p;
/* does this setname exist already? */
old_p = fcn_find(name_p);
if (old_p)
fcn_destroy(old_p);
/* create a new set */
new_p = new(fcn_t);
queue_init(&new_p->qn);
new_p->name_p = name_p;
new_p->entry_name_p = entry_name_p;
#ifdef OLD
/*
* allocate a target function block, and stuff the init and fini
* addrs
*/
prbstat = prb_targmem_alloc(g_procfd, sizeof (probe_funcs_t),
&new_p->funcs_p);
if (prbstat) {
semantic_err(gettext("problem allocating target memory"));
goto Error;
}
prbstat = prb_proc_write(g_procfd, new_p->funcs_p,
&new_p->funcs, sizeof (probe_funcs_t));
if (prbstat) {
semantic_err(gettext(
"setup problem, initial/final "
"funcs in target memory"));
goto Error;
}
#endif
/* append the new set to the global list */
(void) queue_append(&g_fcnlist, &new_p->qn);
return;
Error:
if (new_p)
free(new_p);
return;
} /* end fcn */
/*
* fcn_destroy() - destroys a fcn and related resources
*/
static void
fcn_destroy(fcn_t * fcn_p)
{
if (!fcn_p)
return;
/* remove ourselves from any list */
if (!queue_isempty(&fcn_p->qn))
(void) queue_remove(&fcn_p->qn);
if (fcn_p->name_p)
free(fcn_p->name_p);
if (fcn_p->entry_name_p)
free(fcn_p->entry_name_p);
free(fcn_p);
} /* end fcn_destroy */
/*
* fcn_list() - pretty prints the global fcnlist
*/
void
fcn_list(void)
{
fcn_t *fcn_p;
fcn_p = (fcn_t *) & g_fcnlist;
while ((fcn_p = (fcn_t *) queue_next(&g_fcnlist, &fcn_p->qn))) {
fcn_print(stdout, fcn_p);
}
} /* end fcn_list */
/*
* fcn_print() - pretty prints a fcn
*/
static void
fcn_print(FILE * stream, fcn_t * fcn_p)
{
if (!fcn_p)
return;
(void) fprintf(stream, "&%-8s %-24s\n",
fcn_p->name_p, fcn_p->entry_name_p);
} /* end fcn_print */
/*
* fcn_findname() - find the created name, given an entry name
*/
char *
fcn_findname(const char * const entry_p)
{
fcn_t *fcn_p;
if (!entry_p)
return (NULL);
fcn_p = (fcn_t *) & g_fcnlist;
while ((fcn_p = (fcn_t *) queue_next(&g_fcnlist, &fcn_p->qn)))
if (strcmp(entry_p, fcn_p->entry_name_p) == 0)
return (fcn_p->name_p);
return (NULL);
} /* end fcn_findname */
/*
* fcn_find() - finds a fcn by name
*/
fcn_t *
fcn_find(char *fcnname_p)
{
fcn_t *fcn_p;
if (!fcnname_p)
return (NULL);
fcn_p = (fcn_t *) & g_fcnlist;
while ((fcn_p = (fcn_t *) queue_next(&g_fcnlist, &fcn_p->qn)))
if (strcmp(fcnname_p, fcn_p->name_p) == 0)
return (fcn_p);
return (NULL);
} /* end set_find */