lib/makestate/ld_file.c

10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * CDDL HEADER START
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * The contents of this file are subject to the terms of the
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Common Development and Distribution License (the "License").
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * You may not use this file except in compliance with the License.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * or http://www.opensolaris.org/os/licensing.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * See the License for the specific language governing permissions
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * and limitations under the License.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * When distributing Covered Code, include this CDDL HEADER in each
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * If applicable, add the following below this CDDL HEADER, with the
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * fields enclosed by brackets "[]" replaced with your own identifying
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * information: Portions Copyright [yyyy] [name of copyright owner]
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe *
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * CDDL HEADER END
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Copyright 1998 Sun Microsystems, Inc. All rights reserved.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Use is subject to license terms.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#pragma init(ld_support_init)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <stdio.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <unistd.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <stdlib.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <string.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <libelf.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <sys/param.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#include <link.h>
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe#define SUNPRO_DEPENDENCIES "SUNPRO_DEPENDENCIES"
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Linked list of strings - used to keep lists of names
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * of directories or files.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestruct Stritem {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char *      str;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    void *      next;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe};
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowetypedef struct Stritem  Stritem;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestatic char         * depend_file = NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestatic Stritem      * list = NULL;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid mk_state_init()
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    depend_file = getenv(SUNPRO_DEPENDENCIES);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* mk_state_init() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestatic void
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweprepend_str(Stritem **list, const char * str)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    Stritem * new;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char    * newstr;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (!(new = calloc(1, sizeof (Stritem)))) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        perror("libmakestate.so");
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    } /* if */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (!(newstr = malloc(strlen(str) + 1))) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        perror("libmakestate.so");
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    } /* if */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    new->str = strcpy(newstr, str);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    new->next = *list;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    *list = new;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* prepend_str() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowemk_state_collect_dep(const char * file)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    /*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe     * SUNPRO_DEPENDENCIES wasn't set, we don't collect .make.state
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe     * information.
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe     */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (!depend_file)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    prepend_str(&list, file);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe}  /* mk_state_collect_dep() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowemk_state_update_exit()
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    Stritem     * cur;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    char          lockfile[MAXPATHLEN], * err, * space, * target;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    FILE        * ofp;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    extern char     * file_lock(char *, char *, int);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (!depend_file)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if ((space = strchr(depend_file, ' ')) == NULL)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    *space = '\0';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    target = &space[1];
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (void) sprintf(lockfile, "%s.lock", depend_file);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if ((err = file_lock(depend_file, lockfile, 0))) {
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void) fprintf(stderr, "%s\n", err);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    } /* if */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (!(ofp = fopen(depend_file, "a")))
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (list)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void) fprintf(ofp, "%s: ", target);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    for (cur = list; cur; cur = cur->next)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        (void) fprintf(ofp, " %s", cur->str);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (void) fputc('\n', ofp);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (void) fclose(ofp);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    (void) unlink(lockfile);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    *space = ' ';
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* mk_state_update_exit() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowestatic void
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/* LINTED static unused */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweld_support_init()
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    mk_state_init();
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* ld_support_init() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/* ARGSUSED */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweld_file(const char * file, const Elf_Kind ekind, int flags, Elf *elf)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)))
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    mk_state_collect_dep(file);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* ld_file */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweld_atexit(int exit_code)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (exit_code)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe       return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    mk_state_update_exit();
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* ld_atexit() */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe/*
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe * Supporting 64-bit objects
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweld_file64(const char * file, const Elf_Kind ekind, int flags, Elf *elf)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if(! ((flags & LD_SUP_DERIVED) && !(flags & LD_SUP_EXTRACTED)))
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe        return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    mk_state_collect_dep(file);
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* ld_file64 */
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowevoid
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Loweld_atexit64(int exit_code)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe{
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    if (exit_code)
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe       return;
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe    mk_state_update_exit();
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe
10d63b7db37a83b39c7f511cf9426c9d03ea0760Richard Lowe} /* ld_atexit64() */