ae500c1ff8
Highlights: - Make sure that only TLS sections are sorted into TLS segment. - Fixed multiple errors in "Section to Segment mapping". - Man page updates - ar improvements - elfcopy: avoid filter_reloc uninitialized variable for rela - elfcopy: avoid stripping relocations from static binaries - readelf: avoid printing directory in front of absolute path - readelf: add NT_FREEBSD_FEATURE_CTL FreeBSD note type - test improvements NOTES: Some of these changes originated in FreeBSD and simply reduce diffs between contrib and vendor. ELF Tool Chain ar is not (currently) used in FreeBSD, and there are improvements in both FreeBSD and ELF Tool Chain ar that are not in the other. Sponsored by: The FreeBSD Foundation
117 lines
3.3 KiB
Groff
117 lines
3.3 KiB
Groff
.\" Copyright (c) 2006,2008 Joseph Koshy. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" This software is provided by Joseph Koshy ``as is'' and
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.\" any express or implied warranties, including, but not limited to, the
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.\" implied warranties of merchantability and fitness for a particular purpose
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.\" are disclaimed. in no event shall Joseph Koshy be liable
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.\" for any direct, indirect, incidental, special, exemplary, or consequential
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.\" damages (including, but not limited to, procurement of substitute goods
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.\" or services; loss of use, data, or profits; or business interruption)
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.\" however caused and on any theory of liability, whether in contract, strict
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.\" liability, or tort (including negligence or otherwise) arising in any way
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.\" out of the use of this software, even if advised of the possibility of
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.\" such damage.
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.\"
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.\" $Id: elf_strptr.3 3639 2018-10-14 14:07:02Z jkoshy $
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.\"
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.Dd December 16, 2006
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.Dt ELF_STRPTR 3
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.Os
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.Sh NAME
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.Nm elf_strptr
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.Nd retrieve a string pointer in a string table
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.Sh LIBRARY
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.Lb libelf
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.Sh SYNOPSIS
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.In libelf.h
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.Ft "char *"
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.Fn elf_strptr "Elf *elf" "size_t scndx" "size_t stroffset"
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.Sh DESCRIPTION
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Function
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.Fn elf_strptr
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allows an application to convert a string table offset to a string
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pointer, correctly translating the offset in the presence
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of multiple
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.Vt Elf_Data
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descriptors covering the contents of the section.
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.Pp
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Argument
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.Ar elf
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is a descriptor for an ELF object.
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Argument
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.Ar scndx
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is the section index for an ELF string table.
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Argument
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.Ar stroffset
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is the index of the desired string in the string
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table.
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.Sh RETURN VALUES
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Function
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.Fn elf_strptr
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returns a valid pointer on success or NULL in case an error was
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encountered.
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.Sh ERRORS
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.Bl -tag -width "[ELF_E_RESOURCE]"
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.It Bq Er ELF_E_ARGUMENT
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Argument
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.Ar elf
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was NULL
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.It Bq Er ELF_E_ARGUMENT
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Argument
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.Ar elf
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was not a descriptor for an ELF object.
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.It Bq Er ELF_E_ARGUMENT
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Argument
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.Ar scndx
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was not the section index for a string table.
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.It Bq Er ELF_E_ARGUMENT
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Argument
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.Ar stroffset
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exceeded the size of the string table.
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.It Bq Er ELF_E_ARGUMENT
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Argument
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.Ar stroffset
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index an unallocated region of the string table.
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.It Bq Er ELF_E_DATA
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Offset
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.Ar stroffset
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indexed a region that was not covered by any Elf_Data
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descriptor.
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.It Bq Er ELF_E_DATA
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An erroneous
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.Vt Elf_Data
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descriptor was part of the section specified by argument
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.Ar scndx .
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.It Bq Er ELF_E_HEADER
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ELF descriptor
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.Ar elf
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contained an invalid section header.
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.It Bq Er ELF_E_RESOURCE
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An out of memory condition was detected.
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.It Bq Er ELF_E_SECTION
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Section
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.Ar scndx
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contained a malformed section header.
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.It Bq Er ELF_E_SECTION
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The ELF descriptor in argument
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.Ar elf
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did not adhere to the conventions used for extended numbering.
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.El
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.Sh SEE ALSO
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.Xr elf 3 ,
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.Xr elf32_getshdr 3 ,
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.Xr elf64_getshdr 3 ,
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.Xr elf_getdata 3 ,
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.Xr elf_rawdata 3 ,
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.Xr gelf 3 ,
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.Xr gelf_getshdr 3
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