| 1 | .\" Copyright (c) 2010 Kai Wang |
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| 2 | .\" All rights reserved. |
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| 3 | .\" |
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| 4 | .\" Redistribution and use in source and binary forms, with or without |
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| 5 | .\" modification, are permitted provided that the following conditions |
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| 6 | .\" are met: |
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| 7 | .\" 1. Redistributions of source code must retain the above copyright |
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| 8 | .\" notice, this list of conditions and the following disclaimer. |
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| 9 | .\" 2. Redistributions in binary form must reproduce the above copyright |
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| 10 | .\" notice, this list of conditions and the following disclaimer in the |
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| 11 | .\" documentation and/or other materials provided with the distribution. |
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| 12 | .\" |
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| 13 | .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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| 14 | .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 15 | .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 16 | .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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| 17 | .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| 18 | .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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| 19 | .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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| 20 | .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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| 21 | .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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| 22 | .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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| 23 | .\" SUCH DAMAGE. |
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| 24 | .\" |
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| 25 | .\" $Id: dwarf_tag.3 2075 2011-10-27 03:47:28Z jkoshy $ |
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| 26 | .\" |
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| 27 | .Dd April 14, 2010 |
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| 28 | .Os |
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| 29 | .Dt DWARF_TAG 3 |
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| 30 | .Sh NAME |
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| 31 | .Nm dwarf_tag |
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| 32 | .Nd retrieve the tag associated with a DWARF debugging information entry |
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| 33 | .Sh LIBRARY |
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| 34 | .Lb libdwarf |
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| 35 | .Sh SYNOPSIS |
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| 36 | .In libdwarf.h |
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| 37 | .Ft int |
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| 38 | .Fn dwarf_tag "Dwarf_Die die" "Dwarf_Half *tag" "Dwarf_Error *err" |
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| 39 | .Sh DESCRIPTION |
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| 40 | Function |
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| 41 | .Fn dwarf_tag |
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| 42 | retrieves the tag associated with the debugging information entry |
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| 43 | referenced by argument |
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| 44 | .Ar die , |
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| 45 | and stores it into the location pointed to by argument |
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| 46 | .Ar tag . |
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| 47 | .Pp |
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| 48 | If argument |
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| 49 | .Ar err |
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| 50 | if non-NULL, it will be used to return an error descriptor in case of |
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| 51 | an error. |
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| 52 | .Sh RETURN VALUES |
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| 53 | On success, function |
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| 54 | .Fn dwarf_tag |
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| 55 | returns |
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| 56 | .Dv DW_DLV_OK . |
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| 57 | In case of an error, it returns |
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| 58 | .Dv DW_DLV_ERROR |
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| 59 | and sets argument |
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| 60 | .Ar err . |
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| 61 | .Sh ERRORS |
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| 62 | Function |
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| 63 | .Fn dwarf_tag |
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| 64 | can fail with the following error: |
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| 65 | .Bl -tag -width ".Bq Er DW_DLE_ARGUMENT" |
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| 66 | .It Bq Er DW_DLE_ARGUMENT |
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| 67 | Argument |
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| 68 | .Va die |
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| 69 | or |
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| 70 | .Va tag |
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| 71 | was NULL. |
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| 72 | .El |
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| 73 | .Sh SEE ALSO |
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| 74 | .Xr dwarf 3 , |
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| 75 | .Xr dwarf_die_abbrev_code 3 , |
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| 76 | .Xr dwarf_diename 3 , |
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| 77 | .Xr dwarf_dieoffset 3 |
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