GELF_UPDATE_LIB(3)        Libelf Programmer's Manual        GELF_UPDATE_LIB(3)



NAME
       gelf_update_lib - Update prelink library in table at the given index


SYNOPSIS
       #include <gelf.h>

       int gelf_update_lib (Elf_Data *data, int ndx, GElf_Lib *src);


DESCRIPTION
       Copy a class-independent prelink library table entry from src into the
       SHT_GNU_LIBLIST.  section associated with data at index ndx.


       data must be an Elf_Data* associated with a section of type
       SHT_GNU_LIBLIST.  data->d_type should be ELF_T_LIB.  SHT_GNU_LIBLIST
       sections are used by the prelink utility.  See
       https://sourceware.org/gnu-gabi/prelink.txt for more information.


PARAMETERS
       data   Pointer to an Elf_Data associated with a section with type
              SHT_GNU_LIBLIST.  data->d_type should be ELF_T_LIB.


       ndx    Zero-based index of the prelink library table entry to be
              updated within data.


       src    Pointer to a caller-provided prelink library table entry.  src
              must not be NULL.


RETURN VALUE
       On success, this function returns a non-zero value and updates the
       prelink library table entry at index ndx in data.  The section
       associated with data is flagged with ELF_F_DIRTY.  On failure, zero is
       returned and elf_errno is set.  If data is NULL, then zero is returned
       and elf_errno is not set.


SEE ALSO
       gelf_getlib(3), libelf(3), elf(5)


ATTRIBUTES

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |gelf_update_lib ()                          | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+

REPORTING BUGS
       Report bugs to <elfutils-devel@sourceware.org> or
       https://sourceware.org/bugzilla/.


HISTORY
       gelf_update_lib first appeared in elfutils 0.95. This function is an
       elfutils libelf extension and may not be available in other libelf
       implementations.

Libelf                            2025-12-31                GELF_UPDATE_LIB(3)