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 /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate #include <sys/types.h> 30*0Sstevel@tonic-gate #include <string.h> 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #include "symbol.h" 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate int 35*0Sstevel@tonic-gate ignore_symbol(GElf_Sym *sym, const char *name) 36*0Sstevel@tonic-gate { 37*0Sstevel@tonic-gate uchar_t type = GELF_ST_TYPE(sym->st_info); 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate /* 40*0Sstevel@tonic-gate * As an optimization, we do not output function or data object 41*0Sstevel@tonic-gate * records for undefined or anonymous symbols. 42*0Sstevel@tonic-gate */ 43*0Sstevel@tonic-gate if (sym->st_shndx == SHN_UNDEF || sym->st_name == 0) 44*0Sstevel@tonic-gate return (1); 45*0Sstevel@tonic-gate 46*0Sstevel@tonic-gate /* 47*0Sstevel@tonic-gate * _START_ and _END_ are added to the symbol table by the 48*0Sstevel@tonic-gate * linker, and will never have associated type information. 49*0Sstevel@tonic-gate */ 50*0Sstevel@tonic-gate if (strcmp(name, "_START_") == 0 || strcmp(name, "_END_") == 0) 51*0Sstevel@tonic-gate return (1); 52*0Sstevel@tonic-gate 53*0Sstevel@tonic-gate /* 54*0Sstevel@tonic-gate * Do not output records for absolute-valued object symbols 55*0Sstevel@tonic-gate * that have value zero. The compiler insists on generating 56*0Sstevel@tonic-gate * things like this for __fsr_init_value settings, etc. 57*0Sstevel@tonic-gate */ 58*0Sstevel@tonic-gate if (type == STT_OBJECT && sym->st_shndx == SHN_ABS && 59*0Sstevel@tonic-gate sym->st_value == 0) 60*0Sstevel@tonic-gate return (1); 61*0Sstevel@tonic-gate return (0); 62*0Sstevel@tonic-gate } 63