1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 23*0Sstevel@tonic-gate /* All Rights Reserved */ 24*0Sstevel@tonic-gate 25*0Sstevel@tonic-gate /* 26*0Sstevel@tonic-gate * Copyright (c) 1998 by Sun Microsystems, Inc. 27*0Sstevel@tonic-gate * All rights reserved. 28*0Sstevel@tonic-gate */ 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.10 */ 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #pragma weak elf_getscn = _elf_getscn 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #include "syn.h" 36*0Sstevel@tonic-gate #include "libelf.h" 37*0Sstevel@tonic-gate #include "decl.h" 38*0Sstevel@tonic-gate #include "msg.h" 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate 41*0Sstevel@tonic-gate Elf_Scn * 42*0Sstevel@tonic-gate elf_getscn(Elf * elf, size_t index) 43*0Sstevel@tonic-gate { 44*0Sstevel@tonic-gate Elf_Scn * s; 45*0Sstevel@tonic-gate Elf_Scn * prev_s; 46*0Sstevel@tonic-gate size_t j = index; 47*0Sstevel@tonic-gate size_t tabsz; 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate if (elf == 0) 50*0Sstevel@tonic-gate return (0); 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate ELFRLOCK(elf) 53*0Sstevel@tonic-gate tabsz = elf->ed_scntabsz; 54*0Sstevel@tonic-gate if (elf->ed_hdscn == 0) { 55*0Sstevel@tonic-gate ELFUNLOCK(elf) 56*0Sstevel@tonic-gate ELFWLOCK(elf) 57*0Sstevel@tonic-gate if ((elf->ed_hdscn == 0) && (_elf_cook(elf) != OK_YES)) { 58*0Sstevel@tonic-gate ELFUNLOCK(elf); 59*0Sstevel@tonic-gate return (0); 60*0Sstevel@tonic-gate } 61*0Sstevel@tonic-gate ELFUNLOCK(elf); 62*0Sstevel@tonic-gate ELFRLOCK(elf) 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate /* 65*0Sstevel@tonic-gate * If the section in question is part of a table allocated 66*0Sstevel@tonic-gate * from within _elf_prescn() then we can index straight 67*0Sstevel@tonic-gate * to it. 68*0Sstevel@tonic-gate */ 69*0Sstevel@tonic-gate if (index < tabsz) { 70*0Sstevel@tonic-gate s = &elf->ed_hdscn[index]; 71*0Sstevel@tonic-gate ELFUNLOCK(elf); 72*0Sstevel@tonic-gate return (s); 73*0Sstevel@tonic-gate } 74*0Sstevel@tonic-gate 75*0Sstevel@tonic-gate #ifndef __lock_lint 76*0Sstevel@tonic-gate if (tabsz) 77*0Sstevel@tonic-gate s = &elf->ed_hdscn[tabsz - 1]; 78*0Sstevel@tonic-gate else 79*0Sstevel@tonic-gate s = elf->ed_hdscn; 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate for (prev_s = 0; s != 0; prev_s = s, s = s->s_next) { 82*0Sstevel@tonic-gate if (prev_s) { 83*0Sstevel@tonic-gate SCNUNLOCK(prev_s) 84*0Sstevel@tonic-gate } 85*0Sstevel@tonic-gate SCNLOCK(s) 86*0Sstevel@tonic-gate if (j == 0) { 87*0Sstevel@tonic-gate if (s->s_index == index) { 88*0Sstevel@tonic-gate SCNUNLOCK(s) 89*0Sstevel@tonic-gate ELFUNLOCK(elf); 90*0Sstevel@tonic-gate return (s); 91*0Sstevel@tonic-gate } 92*0Sstevel@tonic-gate _elf_seterr(EBUG_SCNLIST, 0); 93*0Sstevel@tonic-gate SCNUNLOCK(s) 94*0Sstevel@tonic-gate ELFUNLOCK(elf) 95*0Sstevel@tonic-gate return (0); 96*0Sstevel@tonic-gate } 97*0Sstevel@tonic-gate --j; 98*0Sstevel@tonic-gate } 99*0Sstevel@tonic-gate if (prev_s) { 100*0Sstevel@tonic-gate SCNUNLOCK(prev_s) 101*0Sstevel@tonic-gate } 102*0Sstevel@tonic-gate #endif 103*0Sstevel@tonic-gate _elf_seterr(EREQ_NDX, 0); 104*0Sstevel@tonic-gate ELFUNLOCK(elf); 105*0Sstevel@tonic-gate return (0); 106*0Sstevel@tonic-gate } 107