This chapter describes the ELF output module which can be
selected with the @option{-Felf} option.

@section Legal

    This module is written in 2002-2016 by Frank Wille and
    is covered by the vasm copyright without modifications.

@section Additional options for this module
@table @option
    @item -keepempty
        Do not delete empty sections without any symbol definition.
@end table

@section General

This output module outputs the @code{ELF} (Executable and Linkable Format)
format, which is a portable object file format which works for a variety
of 32- and 64-bit operating systems.

@section Restrictions

The @code{ELF} output format, as implemented in vasm, currently supports
the following architectures:

@itemize @minus

@item PowerPC
@item M68k
@item ARM
@item i386
@item x86_64
@item Jaguar RISC

@end itemize

The supported relocation types depend on the selected architecture.

@section Known Problems

    Some known problems of this module at the moment:

@itemize @minus

@item None.

@end itemize

@section Error Messages

This module has the following error messages:

@itemize @minus
@item 3002: output module doesn't support cpu <name>
@item 3003: write error
@item 3005: reloc type <m>, size <n>, mask <mask> (symbol <sym> + <offset>) not supported
@item 3006: reloc type <n> not supported
@item 3010: section <%s>: alignment padding (%lu) not a multiple of %lu at 0x%llx
@end itemize