LCOV - code coverage report
Current view: top level - libdw - dwarf_getcfi.c (source / functions) Hit Total Coverage
Test: elfutils-0.191 Lines: 24 24 100.0 %
Date: 2024-07-23 19:52:03 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 6 8 75.0 %

           Branch data     Line data    Source code
       1                 :            : /* Get CFI from DWARF file.
       2                 :            :    Copyright (C) 2009 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 "libdwP.h"
      34                 :            : #include "cfi.h"
      35                 :            : #include <dwarf.h>
      36                 :            : 
      37                 :            : Dwarf_CFI *
      38                 :       4874 : dwarf_getcfi (Dwarf *dbg)
      39                 :            : {
      40         [ +  + ]:       4874 :   if (dbg == NULL)
      41                 :            :     return NULL;
      42                 :            : 
      43   [ +  -  +  + ]:       4800 :   if (dbg->cfi == NULL && dbg->sectiondata[IDX_debug_frame] != NULL)
      44                 :            :     {
      45         [ -  + ]:         36 :       Dwarf_CFI *cfi = libdw_typed_alloc (dbg, Dwarf_CFI);
      46                 :            : 
      47                 :         36 :       cfi->dbg = dbg;
      48                 :         36 :       cfi->data = (Elf_Data_Scn *) dbg->sectiondata[IDX_debug_frame];
      49                 :            : 
      50                 :         36 :       cfi->search_table = NULL;
      51                 :         36 :       cfi->search_table_vaddr = 0;
      52                 :         36 :       cfi->search_table_entries = 0;
      53                 :         36 :       cfi->search_table_encoding = DW_EH_PE_omit;
      54                 :            : 
      55                 :         36 :       cfi->frame_vaddr = 0;
      56                 :         36 :       cfi->textrel = 0;
      57                 :         36 :       cfi->datarel = 0;
      58                 :            : 
      59                 :         36 :       cfi->e_ident = (unsigned char *) elf_getident (dbg->elf, NULL);
      60                 :            : 
      61                 :         36 :       GElf_Ehdr ehdr;
      62                 :         36 :       gelf_getehdr (dbg->elf, &ehdr);
      63                 :         36 :       cfi->e_machine = ehdr.e_machine;
      64                 :            : 
      65                 :         36 :       cfi->other_byte_order = dbg->other_byte_order;
      66                 :         36 :       cfi->default_same_value = false;
      67                 :            : 
      68                 :         36 :       cfi->next_offset = 0;
      69                 :         36 :       cfi->cie_tree = cfi->fde_tree = cfi->expr_tree = NULL;
      70                 :            : 
      71                 :         36 :       cfi->ebl = NULL;
      72                 :            : 
      73                 :         36 :       dbg->cfi = cfi;
      74                 :            :     }
      75                 :            : 
      76                 :       4800 :   return dbg->cfi;
      77                 :            : }
      78                 :            : INTDEF (dwarf_getcfi)

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