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1 : : /* Return one of the sources lines of a CU. 2 : : Copyright (C) 2005 Red Hat, Inc. 3 : : This file is part of elfutils. 4 : : 5 : : This file is free software; you can redistribute it and/or modify 6 : : it under the terms of either 7 : : 8 : : * the GNU Lesser General Public License as published by the Free 9 : : Software Foundation; either version 3 of the License, or (at 10 : : your option) any later version 11 : : 12 : : or 13 : : 14 : : * the GNU General Public License as published by the Free 15 : : Software Foundation; either version 2 of the License, or (at 16 : : your option) any later version 17 : : 18 : : or both in parallel, as here. 19 : : 20 : : elfutils is distributed in the hope that it will be useful, but 21 : : WITHOUT ANY WARRANTY; without even the implied warranty of 22 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23 : : General Public License for more details. 24 : : 25 : : You should have received copies of the GNU General Public License and 26 : : the GNU Lesser General Public License along with this program. If 27 : : not, see <http://www.gnu.org/licenses/>. */ 28 : : 29 : : #ifdef HAVE_CONFIG_H 30 : : # include <config.h> 31 : : #endif 32 : : 33 : : #include "libdwflP.h" 34 : : 35 : : Dwfl_Line * 36 : 612132 : dwfl_onesrcline (Dwarf_Die *cudie, size_t idx) 37 : : { 38 : 612132 : struct dwfl_cu *cu = (struct dwfl_cu *) cudie; 39 : : 40 [ - + ]: 612132 : if (cudie == NULL) 41 : : return NULL; 42 : : 43 [ - + ]: 612132 : if (cu->lines == NULL) 44 : : { 45 : 0 : Dwfl_Error error = __libdwfl_cu_getsrclines (cu); 46 [ # # ]: 0 : if (error != DWFL_E_NOERROR) 47 : : { 48 : 0 : __libdwfl_seterrno (error); 49 : 0 : return NULL; 50 : : } 51 : : } 52 : : 53 [ - + ]: 612132 : if (idx >= cu->die.cu->lines->nlines) 54 : : { 55 : 0 : __libdwfl_seterrno (DWFL_E (LIBDW, DWARF_E_INVALID_LINE_IDX)); 56 : 0 : return NULL; 57 : : } 58 : : 59 : 612132 : return &cu->lines->idx[idx]; 60 : : }