LCOV - code coverage report
Current view: top level - libelf - gelf_getshdr.c (source / functions) Hit Total Coverage
Test: elfutils-0.190 Lines: 27 33 81.8 %
Date: 2024-02-29 23:48:06 Functions: 1 1 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 11 14 78.6 %

           Branch data     Line data    Source code
       1                 :            : /* Return section header.
       2                 :            :    Copyright (C) 1998, 1999, 2000, 2002, 2015 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            :    Written by Ulrich Drepper <drepper@redhat.com>, 1998.
       5                 :            : 
       6                 :            :    This file is free software; you can redistribute it and/or modify
       7                 :            :    it under the terms of either
       8                 :            : 
       9                 :            :      * the GNU Lesser General Public License as published by the Free
      10                 :            :        Software Foundation; either version 3 of the License, or (at
      11                 :            :        your option) any later version
      12                 :            : 
      13                 :            :    or
      14                 :            : 
      15                 :            :      * the GNU General Public License as published by the Free
      16                 :            :        Software Foundation; either version 2 of the License, or (at
      17                 :            :        your option) any later version
      18                 :            : 
      19                 :            :    or both in parallel, as here.
      20                 :            : 
      21                 :            :    elfutils is distributed in the hope that it will be useful, but
      22                 :            :    WITHOUT ANY WARRANTY; without even the implied warranty of
      23                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      24                 :            :    General Public License for more details.
      25                 :            : 
      26                 :            :    You should have received copies of the GNU General Public License and
      27                 :            :    the GNU Lesser General Public License along with this program.  If
      28                 :            :    not, see <http://www.gnu.org/licenses/>.  */
      29                 :            : 
      30                 :            : #ifdef HAVE_CONFIG_H
      31                 :            : # include <config.h>
      32                 :            : #endif
      33                 :            : 
      34                 :            : #include <gelf.h>
      35                 :            : #include <string.h>
      36                 :            : 
      37                 :            : #include "libelfP.h"
      38                 :            : 
      39                 :            : 
      40                 :            : GElf_Shdr *
      41                 :   45808179 : gelf_getshdr (Elf_Scn *scn, GElf_Shdr *dst)
      42                 :            : {
      43                 :   45808179 :   GElf_Shdr *result = NULL;
      44                 :            : 
      45         [ +  + ]:   45808179 :   if (scn == NULL)
      46                 :            :     return NULL;
      47                 :            : 
      48         [ -  + ]:   45807057 :   if (dst == NULL)
      49                 :            :     {
      50                 :          0 :       __libelf_seterrno (ELF_E_INVALID_OPERAND);
      51                 :          0 :       return NULL;
      52                 :            :     }
      53                 :            : 
      54                 :   45807057 :   rwlock_rdlock (scn->elf->lock);
      55                 :            : 
      56         [ +  + ]:   45807057 :   if (scn->elf->class == ELFCLASS32)
      57                 :            :     {
      58                 :            :       /* Copy the elements one-by-one.  */
      59                 :   17644496 :       Elf32_Shdr *shdr
      60         [ +  + ]:    8821550 :         = scn->shdr.e32 ?: __elf32_getshdr_rdlock (scn);
      61                 :            : 
      62         [ -  + ]:       1396 :       if (shdr == NULL)
      63                 :            :         {
      64                 :          0 :           __libelf_seterrno (ELF_E_INVALID_OPERAND);
      65                 :          0 :           goto out;
      66                 :            :         }
      67                 :            : 
      68                 :            : #define COPY(name) \
      69                 :            :       dst->name = shdr->name
      70                 :    8821550 :       COPY (sh_name);
      71                 :    8821550 :       COPY (sh_type);
      72                 :    8821550 :       COPY (sh_flags);
      73                 :    8821550 :       COPY (sh_addr);
      74                 :    8821550 :       COPY (sh_offset);
      75                 :    8821550 :       COPY (sh_size);
      76                 :    8821550 :       COPY (sh_link);
      77                 :    8821550 :       COPY (sh_info);
      78                 :    8821550 :       COPY (sh_addralign);
      79                 :    8821550 :       COPY (sh_entsize);
      80                 :            : 
      81                 :    8821550 :       result = dst;
      82                 :            :     }
      83                 :            :   else
      84                 :            :     {
      85                 :   73974002 :       Elf64_Shdr *shdr
      86         [ +  + ]:   36985507 :         = scn->shdr.e64 ?: __elf64_getshdr_rdlock (scn);
      87                 :            : 
      88         [ -  + ]:       2988 :       if (shdr == NULL)
      89                 :            :         {
      90                 :          0 :           __libelf_seterrno (ELF_E_INVALID_OPERAND);
      91                 :          0 :           goto out;
      92                 :            :         }
      93                 :            : 
      94                 :            :       /* We only have to copy the data.  */
      95                 :   36985507 :       result = memcpy (dst, shdr, sizeof (GElf_Shdr));
      96                 :            :     }
      97                 :            : 
      98                 :   45807057 :  out:
      99                 :   45807057 :   rwlock_unlock (scn->elf->lock);
     100                 :            : 
     101                 :   45807057 :   return result;
     102                 :            : }
     103                 :            : INTDEF(gelf_getshdr)

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