freebsd-nq/contrib/elftoolchain
Ed Maste 179219ea04 strip/objcopy: handle empty file as unknown
Previously strip reported a somewhat cryptic error for empty files:

    strip: elf_begin() failed: Invalid argument

Add a special case to treat empty files as with an unknown file format.
This is consistent with llvm-strip.  GNU strip produces no output which
does not seem like useful behaviour (but it does exit with status 1).

Reported by:	andrew
Reviewed by:	markj
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D32648
2021-10-25 17:28:41 -04:00
..
addr2line addr2line: fix allocation leak in error path 2020-12-03 14:41:11 +00:00
ar Update to ELF Tool Chain r3668 2019-01-10 14:35:23 +00:00
brandelf
common Fix cross-building on Linux/aarch64 2021-10-18 11:09:00 -05:00
cxxfilt Capsicumize c++filt(1). 2019-09-30 16:10:42 +00:00
elfcopy strip/objcopy: handle empty file as unknown 2021-10-25 17:28:41 -04:00
elfdump Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00
libdwarf libdwarf: Hide SHT_NOBITS sections. 2020-07-20 18:22:38 +00:00
libelf elftoolchain: Support building on Arm-based Macs 2021-03-20 17:58:10 +00:00
libelftc Merge elftoolchain r3877 (by jkoshy): 2020-11-04 11:02:05 +00:00
libpe libpe: Avoid a potential use-after-free in pe_update_symtab(). 2020-03-20 16:24:23 +00:00
nm Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00
readelf Teach the readelf about arm64 gnu properties 2021-10-11 10:39:49 +01:00
size size: Avoid returning a stack pointer from xlatetom(). 2020-02-04 21:17:59 +00:00
strings strings: extends rights 2019-07-16 04:17:25 +00:00
.cirrus.yml Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00
README.rst Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00

The Elftoolchain Project
========================

.. contents:: Table of Contents

Description
-----------

This software implements essential compilation tools and libraries for:

- managing program objects conforming to the ELF_ object format, and
- for managing DWARF_ debugging information in ELF objects.

The project currently implements the following utilities and
libraries:

=========== ============================================
Name        Description
=========== ============================================
ar          Archive manager.
addr2line   Debug tool.
brandelf    Manage the ELF brand on executables.
c++filt     Translate encoded symbols.
elfcopy     Copy and translate between object formats.
elfdump     Diagnostic tool.
findtextrel Find undesired text relocations.
libdwarf    DWARF access library.
libelf      ELF access library.
mcs         Manage comment sections.
nm          List symbols in an ELF object.
ranlib      Add archive symbol tables to an archive.
readelf     Display ELF information.
size        List object sizes.
strings     Extract printable strings.
strip       Discard information from ELF objects.
=========== ============================================

.. _ELF: http://en.wikipedia.org/wiki/Executable_and_Linkable_Format
.. _DWARF: http://www.dwarfstd.org/


Project Documentation
---------------------

- Release notes for released versions of this software are present in
  the file ``RELEASE-NOTES`` in the current directory.
- The file ``INSTALL`` in the current directory contains instructions
  on building and installing this software.
- Reference documentation in the form of manual pages is provided for
  the utilities and libraries developed by the project.
- Additional tutorial documentation is present in the
  ``documentation`` directory.


Tracking Ongoing Development
----------------------------

The project uses subversion_ for its version control system.

.. _subversion: https://subversion.apache.org/

The subversion branch for the current set of sources may be accessed
at the following URL::

    https://sourceforge.net/p/elftoolchain/code/HEAD/tree/trunk/

The project's source tree may be checked out from its repository by
using the ``svn checkout`` command::

    % svn checkout https://svn.code.sf.net/p/elftoolchain/code/trunk

Checked-out sources may be kept upto-date by running ``svn update``
inside the source directory::

    % svn update


Instructions on building and installing the software are given in the
file ``INSTALL`` in the current directory.

Downloading Released Software
-----------------------------

Released versions of the project's software may also be downloaded
from SourceForge's `file release system`_.

.. _file release system: http://sourceforge.net/projects/elftoolchain/files/

Copyright and License
---------------------

This code is copyright its authors, and is distributed under the `BSD
License`_.

.. _BSD License: http://www.opensource.org/licenses/bsd-license.php


Developer Community
-------------------

The project's developers may be contacted using the mailing list:
``<elftoolchain-developers@lists.sourceforge.net>``.


Reporting Bugs
--------------

Please use our `bug tracker`_ for viewing existing bug reports and
for submitting new bug reports.

.. _`bug tracker`: https://sourceforge.net/p/elftoolchain/tickets/


Additional Information
----------------------

Additional information about the project may be found on the `project
website`_.

.. _project website:  http://elftoolchain.sourceforge.net/

.. $Id: README.rst 3677 2019-02-11 09:37:09Z jkoshy $

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