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man pages section 7: Standards, Environments, Macros, Character Sets, and Miscellany

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Updated: Thursday, June 13, 2019
 
 

yasm_objfmts (7)

Name

yasm_objfmts - Yasm Supported Object Formats

Synopsis

yasm -f objfmt ...

Description

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
       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)