FreeBSD 7.0 manual page repository

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elf32_checksum, elf64_checksum, gelf_checksum - return the checksum of an

 

NAME

      elf32_checksum, elf64_checksum, gelf_checksum - return the checksum of an
      ELF object
 

LIBRARY

      library “libelf”
 

SYNOPSIS

      #include <libelf.h>
 
      long
      elf32_checksum(Elf *elf);
 
      long
      elf64_checksum(Elf *elf);
 
      #include <gelf.h>
 
      long
      gelf_checksum(Elf *elf);
 

DESCRIPTION

      These functions return a simple checksum of the ELF object described by
      their argument elf.  The checksum is computed in way that allows its
      value to remain unchanged in presence of modifications to the ELF object
      by utilities like strip(1).
 
      Function elf32_checksum() returns a checksum for an ELF descriptor elf of
      class ELFCLASS32.
 
      Function elf64_checksum() returns a checksum for an ELF descriptor elf of
      class ELFCLASS64.
 
      Function gelf_checksum() provides a class-independent way retrieving the
      checksum for ELF object elf.
      These functions return the checksum of the ELF object, or zero in case an
      error was encountered.
 

ERRORS

      These functions may fail with the following errors:
 
      [ELF_E_ARGUMENT]  Argument elf was NULL.
 
      [ELF_E_ARGUMENT]  Argument elf was not a descriptor for an ELF file.
 
      [ELF_E_ARGUMENT]  The ELF descriptor elf was not opened for reading or
                        updating.
 
      [ELF_E_CLASS]     For functions elf32_checksum() and elf64_checksum(),
                        ELF descriptor elf did not match the class of the
                        called function.
 
      [ELF_E_HEADER]    The ELF object specified by argument elf had a mal‐
                        formed executable header.
 
      [ELF_E_RESOURCE]  An out of memory condition was detected during process‐
                        ing.
 
      [ELF_E_SECTION]   The ELF object specified by argument elf contained a
                        section with a malformed section header.
 
      [ELF_E_VERSION]   The ELF object was of an unsupported version.
      strip(1), elf(3), gelf(3)
 

Sections

Based on BSD UNIX
FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon64, and EM64T), UltraSPARC, IA-64, PC-98 and ARM architectures. It is derived from BSD, the version of UNIX developed at the University of California, Berkeley. It is developed and maintained by a large team of individuals. Additional platforms are in various stages of development.