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



NAME
       gelf_update_dyn - Update class-independent information in the dynamic
       table at the given index


SYNOPSIS
       #include <gelf.h>

       int gelf_update_dyn (Elf_Data *data, int ndx, GElf_Dyn *src);


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


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


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


       src    Pointer to a caller-provided dynamic table entry.  For
              ELFCLASS32 binaries, d_tag should be able to fit within a signed
              32-bit value while d_val and d_ptr should be able to fit within
              unsigned 32-bit values.  src must not be NULL.


RETURN VALUE
       On success, this function returns a non-zero value and updates the
       dynamic table entry at index ndx in data.  The dynamic table 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_getdyn(3), libelf(3), elf(5)


ATTRIBUTES

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

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

Libelf                            2025-12-30                GELF_UPDATE_DYN(3)