1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <string.h> 30 #include <gelf.h> 31 #include <decl.h> 32 #include <msg.h> 33 34 int 35 elf_getphnum(Elf *elf, size_t *phnum) 36 { 37 GElf_Ehdr ehdr; 38 Elf_Scn *scn; 39 GElf_Shdr shdr0; 40 41 if (gelf_getehdr(elf, &ehdr) == NULL) 42 return (0); 43 44 if (ehdr.e_phnum != PN_XNUM) { 45 *phnum = ehdr.e_phnum; 46 return (1); 47 } 48 49 if ((scn = elf_getscn(elf, 0)) == NULL || 50 gelf_getshdr(scn, &shdr0) == NULL) 51 return (0); 52 53 if (shdr0.sh_info == 0) 54 *phnum = ehdr.e_phnum; 55 else 56 *phnum = shdr0.sh_info; 57 58 return (1); 59 } 60