| /* Return file name containing definition of the given function. |
| Copyright (C) 2005 Red Hat, Inc. |
| Written by Ulrich Drepper <drepper@redhat.com>, 2005. |
| |
| This program is Open Source software; you can redistribute it and/or |
| modify it under the terms of the Open Software License version 1.0 as |
| published by the Open Source Initiative. |
| |
| You should have received a copy of the Open Software License along |
| with this program; if not, you may obtain a copy of the Open Software |
| License version 1.0 from http://www.opensource.org/licenses/osl.php or |
| by writing the Open Source Initiative c/o Lawrence Rosen, Esq., |
| 3001 King Ranch Road, Ukiah, CA 95482. */ |
| |
| #ifdef HAVE_CONFIG_H |
| # include <config.h> |
| #endif |
| |
| #include <assert.h> |
| #include <dwarf.h> |
| #include "libdwP.h" |
| |
| |
| const char * |
| dwarf_func_file (Dwarf_Func *func) |
| { |
| Dwarf_Attribute attr_mem; |
| Dwarf_Sword idx = 0; |
| Dwarf_Die *die = func->die; |
| |
| if (INTUSE(dwarf_formsdata) (INTUSE(dwarf_attr) (die, DW_AT_decl_file, |
| &attr_mem), &idx) != 0) |
| return NULL; |
| |
| /* Zero means no source file information available. */ |
| if (idx == 0) |
| { |
| __libdw_seterrno (DWARF_E_NO_ENTRY); |
| return NULL; |
| } |
| |
| /* Get the array of source files for the CU. */ |
| struct Dwarf_CU *cu = die->cu; |
| if (cu->lines == NULL) |
| { |
| Dwarf_Lines *lines; |
| size_t nlines; |
| |
| /* Let the more generic function do the work. It'll create more |
| data but that will be needed in an real program anyway. */ |
| (void) INTUSE(dwarf_getsrclines) (func->cudie, &lines, &nlines); |
| assert (cu->lines != NULL); |
| } |
| |
| if (cu->lines == (void *) -1l) |
| { |
| /* If the file index is not zero, there must be file information |
| available. */ |
| __libdw_seterrno (DWARF_E_INVALID_DWARF); |
| return NULL; |
| } |
| |
| assert (cu->files != NULL && cu->files != (void *) -1l); |
| |
| if (idx >= cu->files->nfiles) |
| { |
| __libdw_seterrno (DWARF_E_INVALID_DWARF); |
| return NULL; |
| } |
| |
| return cu->files->info[idx].name; |
| } |