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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 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 <sys/auxv.h> 30 #include <sys/types.h> 31 32 void 33 sbcp_init(int argc, char *argv[], char *envp[]) 34 { 35 auxv_t *ap; 36 uintptr_t *p; 37 int err; 38 39 /* 40 * Find the aux vector on the stack. 41 */ 42 p = (uintptr_t *)envp; 43 while (*p != NULL) 44 p++; 45 46 /* 47 * p is now pointing at the 0 word after the environ pointers. 48 * After that is the aux vectors. 49 * 50 * We need to clear the AF_SUN_NOPLM flag from the AT_SUN_AUXFLAGS 51 * aux vector. This flag told our linker that we don't have a 52 * primary link map. Now that our linker is done initializing, we 53 * want to clear this flag before we transfer control to the 54 * applications copy of the linker, since we want that linker to have 55 * a primary link map which will be the link map for the application 56 * we're running. 57 */ 58 p++; 59 for (ap = (auxv_t *)p; ap->a_type != AT_NULL; ap++) { 60 switch (ap->a_type) { 61 case AT_SUN_AUXFLAGS: 62 ap->a_un.a_val &= ~AF_SUN_NOPLM; 63 break; 64 default: 65 break; 66 } 67 } 68 } 69