1 /* Iterate through DWARF compilation units across all modules. 2 Copyright (C) 2005-2010 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 #include "libdwflP.h" 30 31 Dwarf_Die * 32 dwfl_nextcu (Dwfl *dwfl, Dwarf_Die *lastcu, Dwarf_Addr *bias) 33 { 34 if (dwfl == NULL) 35 return NULL; 36 37 struct dwfl_cu *cu = (struct dwfl_cu *) lastcu; 38 Dwfl_Module *mod; 39 40 if (cu == NULL) 41 { 42 mod = dwfl->modulelist; 43 goto nextmod; 44 } 45 else 46 mod = cu->mod; 47 48 Dwfl_Error error; 49 do 50 { 51 error = __libdwfl_nextcu (mod, cu, &cu); 52 if (error != DWFL_E_NOERROR) 53 break; 54 55 if (cu != NULL) 56 { 57 *bias = dwfl_adjusted_dwarf_addr (mod, 0); 58 return &cu->die; 59 } 60 61 do 62 { 63 mod = mod->next; 64 65 nextmod: 66 if (mod == NULL) 67 return NULL; 68 69 if (mod->dwerr == DWFL_E_NOERROR 70 && (mod->dw != NULL 71 || INTUSE(dwfl_module_getdwarf) (mod, bias) != NULL)) 72 break; 73 } 74 while (mod->dwerr == DWFL_E_NO_DWARF); 75 error = mod->dwerr; 76 } 77 while (error == DWFL_E_NOERROR); 78 79 __libdwfl_seterrno (error); 80 return NULL; 81 } 82 INTDEF (dwfl_nextcu) 83