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   dh_dwz    ( 1 )

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Имя (Name)

dh_dwz - optimize DWARF debug information in ELF binaries via dwz

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Синопсис (Synopsis)

dh_dwz [debhelper options] [-Xitem] [-- params]

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Описание (Description)

dh_dwz is a debhelper program that will optimize the (uncompressed) size of the DWARF debug information in ELF binaries. It does so by running dwz(1) on all the ELF binaries in the package.

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Параметры (Options)

--dwz-multifile, --no-dwz-multifile
           Whether dwz(1) should generate a multifile from the ELF
           binaries in the same package.  When enabled, if a package
           ships at least 2 ELF binaries, dh_dwz will instruct dwz(1) to
           generate a multifile for the package.

           By default, dh_dwz will attempt to create a multifile but
           will continue without if dwz(1) does not create one (but
           succeeds anyway).  This commonly happens when the debug files
           do not contain debug symbols (e.g. a missing -g to the
           compiler) or when the debug symbols are compressed (see
           Debian bug #931891).  If --dwz-multifile is passed, then
           dh_dwz will abort with an error if dwz(1) does not create a
           multifile.

           Note this options may not work if a package contains more ELF
           binaries than can fit on a single command line.  If this
           becomes a problem, please pass --no-dwz-multifile to work
           around the issue.

           The generated multifile will be compressed with objcopy
           --compress-debug-sections.

           Note for udeb packages: dh_dwz will never generate multifiles
           for udeb packages.  It will still use dwz to reduce the file
           size of debug files if it finds any.

       -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.

       -- params
           Pass params to dwz(1) when it processes ELF binaries.  This
           is mostly useful for setting memory related parameters (e.g.
           -l and -L).

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Примечание (Note)

If the DEB_BUILD_OPTIONS environment variable contains nostrip, nothing will be stripped, in accordance with Debian policy (section 10.1 "Binaries").

While this tool technically does not remove debug information from binaries, it is still skipped when the DEB_BUILD_OPTIONS environment variable contains nostrip. This is because nostrip is often used to optimize build times (e.g. for "build and test"-cycles) rather than optimizing for size.

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Смотри также (See also)

debhelper(7)

This program is a part of debhelper.

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