dh_strip (1)

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NAME

dh_strip - strip executables, shared libraries, and some static libraries

SYNOPSIS

dh_strip [debhelper options] [-Xitem] [--dbg-package=package] [--keep-debug]

DESCRIPTION

dh_strip is a debhelper program that is responsible for stripping executables, shared libraries, and static libraries that are not used for debugging.

This program examines your package build directories and works out what to strip on its own. It uses file(1) and file permissions and filenames to figure out what files are shared libraries (*.so), executable binaries, and static (lib*.a) and debugging libraries (lib*_g.a, debug/*.so), and strips each as much as is possible. (Which is not at all for debugging libraries.) In general it seems to make very good guesses, and will do the right thing in almost all cases.

Since it is very hard to automatically guess if a file is a module, and hard to determine how to strip a module, dh_strip does not currently deal with stripping binary modules such as .o files.

OPTIONS

-Xitem, --exclude=item

Exclude files that contain item anywhere in their filename from being stripped. You may use this option multiple times to build up a list of things to exclude.

--dbg-package=package

This option is a now special purpose option that you normally do not need. In most cases, there should be little reason to use this option for new source packages as debhelper automatically generates debug packages (``dbgsym packages''). If you have a manual --dbg-package that you want to replace with an automatically generated debug symbol package, please see the --dbgsym-migration option.

Causes dh_strip to save debug symbols stripped from the packages it acts on as independent files in the package build directory of the specified debugging package.

For example, if your packages are libfoo and foo and you want to include a foo-dbg package with debugging symbols, use dh_strip --dbg-package=foo-dbg.

Note that this option behaves significantly different in debhelper compatibility levels 4 and below. Instead of specifying the name of a debug package to put symbols in, it specifies a package (or packages) which should have separated debug symbols, and the separated symbols are placed in packages with -dbg added to their name.

This option implies --no-automatic-dbgsym and cannot be used with --automatic-dbgsym or --dbgsym-migration.

-k, --keep-debug

This option is a now special purpose option that you normally do not need. In most cases, there should be little reason to use this option for new source packages as debhelper automatically generates debug packages (``dbgsym packages''). If you have a manual --dbg-package that you want to replace with an automatically generated debug symbol package, please see the --dbgsym-migration option.

Debug symbols will be retained, but split into an independent file in usr/lib/debug/ in the package build directory. --dbg-package is easier to use than this option, but this option is more flexible.

This option implies --no-automatic-dbgsym and cannot be used with --automatic-dbgsym.

--dbgsym-migration=package-relation

This option is used to migrate from a manual ``-dbg'' package (created with --dbg-package) to an automatic generated debug symbol package. This option should describe a valid Replaces- and Breaks-relation, which will be added to the debug symbol package to avoid file conflicts with the (now obsolete) -dbg package.

This option implies --automatic-dbgsym and cannot be used with --keep-debug, --dbg-package or --no-automatic-dbgsym.

Examples:

  dh_strip --dbgsym-migration='libfoo-dbg (<< 2.1-3~)'

  dh_strip --dbgsym-migration='libfoo-tools-dbg (<< 2.1-3~), libfoo2-dbg (<< 2.1-3~)'

--automatic-dbgsym, --no-automatic-dbgsym

Control whether dh_strip should be creating debug symbol packages when possible.

The default is to create debug symbol packages.

--ddebs, --no-ddebs

Historical name for --automatic-dbgsym and --no-automatic-dbgsym.

--ddeb-migration=package-relation

Historical name for --dbgsym-migration.

NOTES

If the environment variable contains nostrip, nothing will be stripped, in accordance with Debian policy (section 10.1 ``Binaries''). This will also inhibit the automatic creation of debug symbol packages.

The automatic creation of debug symbol packages can also be prevented by adding noautodbgsym to the

environment variable.

CONFORMS TO

Debian policy, version 3.0.1

SEE ALSO

debhelper(7)

This program is a part of debhelper.

AUTHOR

Joey Hess <joeyh@debian.org>