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 out debug symbols in
       executables, shared libraries, and static libraries that are not needed during execution.

       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.

           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.

       --keep-lto
           Sections containing information generated by -flto -ffat-lto-objects are normally
           removed from static archives, because the streaming format changes even in minor GCC
           versions, and because cross package link time optimizations are normally not desired.
           This option allows to keep this information in the static libraries.

NOTES

       If the DEB_BUILD_OPTIONS 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 DEB_BUILD_OPTIONS environment variable.  However, dh_strip will still
       add debuglinks to ELF binaries when this flag is set.  This is to ensure that the regular
       deb package will be identical with and without this flag (assuming it is otherwise "bit-
       for-bit" reproducible).

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>