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



NAME
       gelf_update_shdr - copy a class-independent section header into a
       section descriptor


SYNOPSIS
       #include <gelf.h>

       int gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *src);


DESCRIPTION
       gelf_update_shdr() copies the class-independent section header
       referenced by src into the section descriptor scn.  The section header
       is translated as necessary to match the class ( ELFCLASS32 or
       ELFCLASS64) of the underlying ELF object.  If the underlying ELF object
       has class ELFCLASS32 then the struct members of src must fit into
       32-bit field values.


PARAMETERS
       scn    Pointer to a section descriptor of type Elf_Scn.


       src    Pointer to a GElf_Shdr structure containing the caller's desired
              section header contents.


RETURN VALUE
       On success, gelf_update_shdr() returns a non-zero value and marks scn
       with the ELF_F_DIRTY flag.  On failure, this function returns 0 and
       elf_errno is set. If scn or src are NULL, then 0 is returned without
       setting elf_errno.


SEE ALSO
       gelf_getshdr(3), elf_getscn(3), elf_nextscn(3), libelf(3), elf(5)


ATTRIBUTES

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

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

Libelf                            2025-09-23               GELF_UPDATE_SHDR(3)