ld_file.c revision 10d63b7db37a83b39c7f511cf9426c9d03ea0760
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 1998 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma init(ld_support_init)
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <libelf.h>
#include <sys/param.h>
#include <link.h>
#define SUNPRO_DEPENDENCIES "SUNPRO_DEPENDENCIES"
/*
* Linked list of strings - used to keep lists of names
* of directories or files.
*/
struct Stritem {
char * str;
void * next;
};
typedef struct Stritem Stritem;
static char * depend_file = NULL;
static Stritem * list = NULL;
void mk_state_init()
{
depend_file = getenv(SUNPRO_DEPENDENCIES);
} /* mk_state_init() */
static void
prepend_str(Stritem **list, const char * str)
{
Stritem * new;
char * newstr;
if (!(new = calloc(1, sizeof (Stritem)))) {
perror("libmakestate.so");
return;
} /* if */
if (!(newstr = malloc(strlen(str) + 1))) {
perror("libmakestate.so");
return;
} /* if */
new->str = strcpy(newstr, str);
new->next = *list;
*list = new;
} /* prepend_str() */
void
mk_state_collect_dep(const char * file)
{
/*
* SUNPRO_DEPENDENCIES wasn't set, we don't collect .make.state
* information.
*/
if (!depend_file)
return;
prepend_str(&list, file);
} /* mk_state_collect_dep() */
void
mk_state_update_exit()
{
Stritem * cur;
char lockfile[MAXPATHLEN], * err, * space, * target;
FILE * ofp;
extern char * file_lock(char *, char *, int);
if (!depend_file)
return;
if ((space = strchr(depend_file, ' ')) == NULL)
return;
*space = '\0';
target = &space[1];
(void) sprintf(lockfile, "%s.lock", depend_file);
if ((err = file_lock(depend_file, lockfile, 0))) {
(void) fprintf(stderr, "%s\n", err);
return;
} /* if */
if (!(ofp = fopen(depend_file, "a")))
return;
if (list)
(void) fprintf(ofp, "%s: ", target);
for (cur = list; cur; cur = cur->next)
(void) fprintf(ofp, " %s", cur->str);
(void) fputc('\n', ofp);
(void) fclose(ofp);
(void) unlink(lockfile);
*space = ' ';
} /* mk_state_update_exit() */
static void
/* LINTED static unused */
ld_support_init()
{
mk_state_init();
} /* ld_support_init() */
/* ARGSUSED */
void
ld_file(const char * file, const Elf_Kind ekind, int flags, Elf *elf)
{
if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)))
return;
mk_state_collect_dep(file);
} /* ld_file */
void
ld_atexit(int exit_code)
{
if (exit_code)
return;
mk_state_update_exit();
} /* ld_atexit() */
/*
* Supporting 64-bit objects
*/
void
ld_file64(const char * file, const Elf_Kind ekind, int flags, Elf *elf)
{
if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)))
return;
mk_state_collect_dep(file);
} /* ld_file64 */
void
ld_atexit64(int exit_code)
{
if (exit_code)
return;
mk_state_update_exit();
} /* ld_atexit64() */