10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*6812Sraf * Common Development and Distribution License (the "License"). 6*6812Sraf * You may not use this file except in compliance with the License. 70Sstevel@tonic-gate * 80Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 90Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 100Sstevel@tonic-gate * See the License for the specific language governing permissions 110Sstevel@tonic-gate * and limitations under the License. 120Sstevel@tonic-gate * 130Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 140Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 150Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 160Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 170Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 180Sstevel@tonic-gate * 190Sstevel@tonic-gate * CDDL HEADER END 200Sstevel@tonic-gate */ 21*6812Sraf 22*6812Sraf /* 23*6812Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24*6812Sraf * Use is subject to license terms. 25*6812Sraf */ 26*6812Sraf 270Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 280Sstevel@tonic-gate /* All Rights Reserved */ 290Sstevel@tonic-gate 30*6812Sraf #pragma ident "%Z%%M% %I% %E% SMI" 310Sstevel@tonic-gate 320Sstevel@tonic-gate #include "libelf.h" 330Sstevel@tonic-gate #include "decl.h" 340Sstevel@tonic-gate #include "msg.h" 350Sstevel@tonic-gate 360Sstevel@tonic-gate 370Sstevel@tonic-gate Elf_Scn * elf_getscn(Elf * elf,size_t index)380Sstevel@tonic-gateelf_getscn(Elf * elf, size_t index) 390Sstevel@tonic-gate { 400Sstevel@tonic-gate Elf_Scn * s; 410Sstevel@tonic-gate Elf_Scn * prev_s; 420Sstevel@tonic-gate size_t j = index; 430Sstevel@tonic-gate size_t tabsz; 440Sstevel@tonic-gate 450Sstevel@tonic-gate if (elf == 0) 460Sstevel@tonic-gate return (0); 470Sstevel@tonic-gate 480Sstevel@tonic-gate ELFRLOCK(elf) 490Sstevel@tonic-gate tabsz = elf->ed_scntabsz; 500Sstevel@tonic-gate if (elf->ed_hdscn == 0) { 510Sstevel@tonic-gate ELFUNLOCK(elf) 520Sstevel@tonic-gate ELFWLOCK(elf) 530Sstevel@tonic-gate if ((elf->ed_hdscn == 0) && (_elf_cook(elf) != OK_YES)) { 540Sstevel@tonic-gate ELFUNLOCK(elf); 550Sstevel@tonic-gate return (0); 560Sstevel@tonic-gate } 570Sstevel@tonic-gate ELFUNLOCK(elf); 580Sstevel@tonic-gate ELFRLOCK(elf) 590Sstevel@tonic-gate } 600Sstevel@tonic-gate /* 610Sstevel@tonic-gate * If the section in question is part of a table allocated 620Sstevel@tonic-gate * from within _elf_prescn() then we can index straight 630Sstevel@tonic-gate * to it. 640Sstevel@tonic-gate */ 650Sstevel@tonic-gate if (index < tabsz) { 660Sstevel@tonic-gate s = &elf->ed_hdscn[index]; 670Sstevel@tonic-gate ELFUNLOCK(elf); 680Sstevel@tonic-gate return (s); 690Sstevel@tonic-gate } 700Sstevel@tonic-gate 710Sstevel@tonic-gate #ifndef __lock_lint 720Sstevel@tonic-gate if (tabsz) 730Sstevel@tonic-gate s = &elf->ed_hdscn[tabsz - 1]; 740Sstevel@tonic-gate else 750Sstevel@tonic-gate s = elf->ed_hdscn; 760Sstevel@tonic-gate 770Sstevel@tonic-gate for (prev_s = 0; s != 0; prev_s = s, s = s->s_next) { 780Sstevel@tonic-gate if (prev_s) { 790Sstevel@tonic-gate SCNUNLOCK(prev_s) 800Sstevel@tonic-gate } 810Sstevel@tonic-gate SCNLOCK(s) 820Sstevel@tonic-gate if (j == 0) { 830Sstevel@tonic-gate if (s->s_index == index) { 840Sstevel@tonic-gate SCNUNLOCK(s) 850Sstevel@tonic-gate ELFUNLOCK(elf); 860Sstevel@tonic-gate return (s); 870Sstevel@tonic-gate } 880Sstevel@tonic-gate _elf_seterr(EBUG_SCNLIST, 0); 890Sstevel@tonic-gate SCNUNLOCK(s) 900Sstevel@tonic-gate ELFUNLOCK(elf) 910Sstevel@tonic-gate return (0); 920Sstevel@tonic-gate } 930Sstevel@tonic-gate --j; 940Sstevel@tonic-gate } 950Sstevel@tonic-gate if (prev_s) { 960Sstevel@tonic-gate SCNUNLOCK(prev_s) 970Sstevel@tonic-gate } 980Sstevel@tonic-gate #endif 990Sstevel@tonic-gate _elf_seterr(EREQ_NDX, 0); 1000Sstevel@tonic-gate ELFUNLOCK(elf); 1010Sstevel@tonic-gate return (0); 1020Sstevel@tonic-gate } 103