b54d7a9715
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
106 lines
3.2 KiB
Groff
106 lines
3.2 KiB
Groff
.\" Copyright (c) 2010 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: dwarf_srcfiles.3 3640 2018-10-14 14:09:13Z jkoshy $
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.\"
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.Dd April 28, 2010
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.Dt DWARF_SRCFILES 3
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.Os
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.Sh NAME
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.Nm dwarf_srcfiles
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.Nd retrieve source file information
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.Sh LIBRARY
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.Lb libdwarf
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.Sh SYNOPSIS
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.In libdwarf.h
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.Ft int
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.Fo dwarf_srcfiles
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.Fa "Dwarf_Die die"
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.Fa "char ***filenames"
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.Fa "Dwarf_Signed *filenamecount"
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.Fa "Dwarf_Error *err"
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.Fc
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.Sh DESCRIPTION
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Function
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.Fn dwarf_srcfiles
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returns the source file names associated with a compilation unit.
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Source file names are returned as an array of NUL-terminated strings.
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.Pp
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Argument
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.Ar die
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should reference a DWARF debugging information entry descriptor with
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source file information, see
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.Xr dwarf 3 .
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Argument
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.Ar filenames
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should point to a location that will hold a pointer to the returned array
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of file names.
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Argument
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.Ar filenamecount
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should point to a location that will hold the number of file names returned.
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If argument
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.Ar err
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is not NULL, it will be used to store error information in case of an
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error.
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.Ss Memory Management
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The memory areas used for the file names and for array of pointers
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being returned are managed by the DWARF(3) library.
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The application should not attempt to directly free these memory areas.
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Portable code should indicate that the memory areas are to be freed
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by using
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.Xr dwarf_dealloc 3 .
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.Sh RETURN VALUES
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Function
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.Fn dwarf_srcfiles
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returns
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.Dv DW_DLV_OK
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when it succeeds.
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In case of an error, it returns
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.Dv DW_DLV_ERROR
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and sets the argument
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.Ar err .
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.Sh ERRORS
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Function
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.Fn dwarf_srcfiles
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can fail with:
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.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
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.It Bq Er DW_DLE_ARGUMENT
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One of the arguments
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.Ar die ,
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.Ar filenames
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or
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.Ar filenamecount
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was NULL.
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.It Bq Er DW_DLE_NO_ENTRY
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The compilation unit referenced by argument
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.Ar die
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does not have associated source file information.
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.It Bq Er DW_DLE_MEMORY
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An out of memory condition was encountered during the execution of
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this function.
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.El
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.Sh SEE ALSO
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.Xr dwarf 3 ,
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.Xr dwarf_dealloc 3 ,
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.Xr dwarf_srclines 3
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