GELF_GETCHDR(3)        FreeBSD Library Functions Manual        GELF_GETCHDR(3)

NAME
     elf32_getchdr, elf64_getchdr, gelf_getchdr - retrieve the compression
     header of a section

LIBRARY
     ELF Access Library (libelf, -lelf)

SYNOPSIS
     #include <libelf.h>

     Elf32_Chdr *
     elf32_getchdr(Elf_Scn *s);

     Elf64_Chdr *
     elf64_getchdr(Elf_Scn *s);

     #include <gelf.h>

     GElf_Chdr *
     gelf_getchdr(Elf_Scn *scn, GElf_Chdr *chdr);

DESCRIPTION
     These functions return a pointer to the ELF Compression Header data
     structure associated with section descriptor scn.

     Function elf32_getchdr() retrieves a pointer to an Elf32_Chdr structure.
     Section descriptor scn must be associated with an ELF descriptor of class
     ELFCLASS32.

     Function elf64_getchdr() retrieves a pointer to an Elf64_Chdr structure.
     Section descriptor scn must be associated with an ELF descriptor of class
     ELFCLASS64.

     Function gelf_getchdr() copies the values in the compression header
     associated with argument scn to the structure pointed to be argument dst.
     The GElf_Chdr data structure is described in gelf(3).

RETURN VALUES
     Functions elf32_getchdr() and elf64_getchdr() return a valid pointer to
     the appropriate compression header on success or NULL if an error was
     encountered.

     Function gelf_getchdr() returns argument dst if successful, or NULL if an
     error was encountered.

ERRORS
     These functions may fail with the following errors:

     [ELF_E_INVALID_SECTION_FLAGS]
                       Arguments scn has invalid flags.

     [ELF_E_INVALID_SECTION_TYPE]
                       Argument scn has invalid type.

     [ELF_E_NOT_COMPRESSED]
                       Argument scn is not compressed.

SEE ALSO
     elf(3), elf_getscn(3), gelf(3),

FreeBSD 13.1-RELEASE-p6        October 23, 2020        FreeBSD 13.1-RELEASE-p6