63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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*/
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#pragma ident "%Z%%M% %I% %E% SMI"
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#include <sys/types.h>
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#include <string.h>
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#include "symbol.h"
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int
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ignore_symbol(GElf_Sym *sym, const char *name)
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{
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uchar_t type = GELF_ST_TYPE(sym->st_info);
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/*
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* As an optimization, we do not output function or data object
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* records for undefined or anonymous symbols.
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*/
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if (sym->st_shndx == SHN_UNDEF || sym->st_name == 0)
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return (1);
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/*
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* _START_ and _END_ are added to the symbol table by the
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* linker, and will never have associated type information.
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*/
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if (strcmp(name, "_START_") == 0 || strcmp(name, "_END_") == 0)
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return (1);
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/*
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* Do not output records for absolute-valued object symbols
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* that have value zero. The compiler insists on generating
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* things like this for __fsr_init_value settings, etc.
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*/
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if (type == STT_OBJECT && sym->st_shndx == SHN_ABS &&
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sym->st_value == 0)
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return (1);
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return (0);
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}
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