Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

-Ttext address

Begin text segment of output at address.

-Ur

Synonymous with -r except when linking C++ programs,

where it resolves constructor references.

-X With -s or -S, delete local symbols beginning with L.

-V Show version number and emulation linkers for -m option.

ldconfig

ldconfig [options] directories

System administration command. Examine the libraries in the

given directories, /etc/ld.so.conf, /usr/lib, and /lib; update links and

cache where necessary. Usually run in startup files or after the

installation of new shared libraries.

Options

-C filename

Use filename instead of /etc/ld.so.cache

-f filename

Use filename instead of /etc/ld.so.conf

-l Library mode. Expect libraries as arguments, not directories.

Manually link specified libraries.

-n Suppress examination of /usr/lib and /lib and reading of /etc/ld.

so.conf; do not cache.

-N Do not cache; only link.

-p Print all directories and candidate libraries in the cache. Used

without arguments.

-v Verbose mode. Include version number, and announce each

directory as it is scanned and links as they are created.

-X Do not link; only rebuild cache.

Files

/lib/ld.so

Linker and loader.

/etc/ld.so.conf

List of directories that contain libraries.

/etc/ld.so.cache

List of the libraries found in those libraries mentioned