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1 : : /* Return high PC attribute of DIE. 2 : : Copyright (C) 2003, 2005, 2012, 2018 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 <dwarf.h> 34 : : #include "libdwP.h" 35 : : 36 : : 37 : : int 38 : 1403770 : dwarf_highpc (Dwarf_Die *die, Dwarf_Addr *return_addr) 39 : : { 40 : 1403770 : Dwarf_Attribute attr_high_mem; 41 : 1403770 : Dwarf_Attribute *attr_high; 42 : : /* Split compile DIEs inherit high_pc from their skeleton DIE. */ 43 [ + + + + ]: 1403770 : if (is_cudie (die) && die->cu->unit_type == DW_UT_split_compile) 44 : 52 : attr_high = INTUSE(dwarf_attr_integrate) (die, DW_AT_high_pc, 45 : : &attr_high_mem); 46 : : else 47 : 1403718 : attr_high = INTUSE(dwarf_attr) (die, DW_AT_high_pc, &attr_high_mem); 48 : : 49 [ + + ]: 1403770 : if (attr_high == NULL) 50 : 1332762 : goto no_addr; 51 : : 52 [ + + ]: 71008 : if (INTUSE(dwarf_formaddr) (attr_high, return_addr) == 0) 53 : : return 0; 54 : : 55 : : /* DWARF 4 allows high_pc to be a constant offset from low_pc. */ 56 [ - + ]: 68898 : if (INTUSE(dwarf_lowpc) (die, return_addr) == 0) 57 : : { 58 : 68898 : Dwarf_Word uval; 59 [ + - ]: 68898 : if (INTUSE(dwarf_formudata) (attr_high, &uval) == 0) 60 : : { 61 : 68898 : *return_addr += uval; 62 : 68898 : return 0; 63 : : } 64 : : } 65 : : 66 : 0 : no_addr: 67 : 1332762 : __libdw_seterrno (DWARF_E_NO_ADDR); 68 : 1332762 : return -1; 69 : : } 70 : : INTDEF(dwarf_highpc)