yasm_objfmts - Yasm Supported Object Formats
yasm -f objfmt ...
Yasm Supported Object Formats YASM_OBJFMTS(7)
NAME
yasm_objfmts - Yasm Supported Object Formats
SYNOPSIS
yasm -f objfmt ...
DESCRIPTION
The standard Yasm distribution includes a number of modules for
different object formats (Yasm's primary output).
The object format is selected on the yasm(1) command line by use of the
-f objfmt command line option.
BIN
The "bin" object format produces a flat-format, non-relocatable binary
file. It is appropriate for producing DOS .COM executables or things
like boot blocks. It supports only 3 sections and those sections are
written in a predefined order to the output file.
COFF
The COFF object format is an older relocatable object format used on
older Unix and compatible systems, and also (more recently) on the
DJGPP development system for DOS.
DBG
The "dbg" object format is not a "real" object format; the output file
it creates simply describes the sequence of calls made to it by Yasm
and the final object and symbol table information in a human-readable
text format (that in a normal object format would get processed into
that object format's particular binary representation). This object
format is not intended for real use, but rather for debugging Yasm's
internals.
ELF
The ELF object format really comes in three flavors: "elf32" (for
32-bit targets), "elf64" (for 64-bit targets and "elfx32" (for x32
targets). ELF is a standard object format in common use on modern Unix
and compatible systems (e.g. Linux, FreeBSD). ELF has complex support
for relocatable and shared objects.
MACHO
The Mach-O object format really comes in two flavors: "macho32" (for
32-bit targets) and "macho64" (for 64-bit targets). Mach-O is used as
the object format on MacOS X. As Yasm currently only supports x86 and
AMD64 instruction sets, it can only generate Mach-O objects for
Intel-based Macs.
RDF
The RDOFF2 object format is a simple multi-section format originally
designed for NASM. It supports segment references but not WRT
references. It was designed primarily for simplicity and has
minimalistic headers for ease of loading and linking. A complete
toolchain (linker, librarian, and loader) is distributed with NASM.
WIN32
The Win32 object format produces object files compatible with Microsoft
compilers (such as Visual C++) that target the 32-bit x86 Windows
platform. The object format itself is an extended version of COFF.
WIN64
The Win64 object format produces object files compatible with Microsoft
compilers that target the 64-bit "x64" Windows platform. This format is
very similar to the win32 object format, but produces 64-bit objects.
XDF
The XDF object format is essentially a simplified version of COFF. It's
a multi-section relocatable format that supports 64-bit physical and
virtual addresses.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
+---------------+-----------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+-----------------------+
|Availability | developer/yasm |
+---------------+-----------------------+
|Stability | Pass-through volatile |
+---------------+-----------------------+
SEE ALSO
yasm(1), yasm_arch(7)
AUTHOR
Peter Johnson <peter@tortall.net>
Author.
COPYRIGHT
Copyright (C) 2006 Peter Johnson
NOTES
Source code for open source software components in Oracle Solaris can
be found at https://www.oracle.com/downloads/opensource/solaris-source-
code-downloads.html.
This software was built from source available at
https://github.com/oracle/solaris-userland. The original community
source was downloaded from
http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz.
Further information about this software can be found on the open source
community website at http://yasm.tortall.net/.
Yasm February 2007 YASM_OBJFMTS(7)