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native_client_sdk/src/doc/devguide/devcycle/dynamic-loading.rst

 ######################################
 Dynamic Linking and Loading with glibc
 ######################################
 
 .. contents::
   :local:
   :backlinks: none
   :depth: 2
 
-Introduction
-============
-
 .. Note::
   :class: caution
 
   Portable Native Client currently only supports static linking, and the
   only C library available for it is newlib. This page is only valid for
   Native Client, though PNaCl will eventually support some form of
   dynamic linking.
 
 This document describes how to create and deploy dynamically linked and loaded
 applications with the glibc library in the Native Client SDK. Before reading
 this document, we recommend reading :doc:`Building Native Client Modules
 <building>`
 
 .. _c_libraries:
 
 C standard libraries: glibc and newlib
 --------------------------------------
 
 The Native Client SDK comes with two C standard libraries --- glibc and
 newlib. These libraries are described in the table below.
 
-+--------+----------+-------------+--------------------------------------------+
-| Library| Linking  | License     | Description                                |
-+========+==========+=============+============================================+
-| glibc  | dynamic  | GNU Lesser  | glibc is the GNU implementation of the     |
-|        | or static| General     | POSIX_ standard runtime library for the C  |
-|        |          | Public      | programming language. Designed for         |
-|        |          | License     | portability and performance, glibc is one  |
-|        |          | (LGPL)      | of the most popular implementations of the |
-|        |          |             | C library. It is comprised of a set of     |
-|        |          |             | interdependent libraries including libc,   |
-|        |          |             | libpthreads, libdl, and others. For        |
-|        |          |             | documentation, FAQs, and additional        |
-|        |          |             | information about glibc, see GLIBC_        |
-+--------+----------+-------------+--------------------------------------------+
-| newlib | static   | Berkeley    | newlib is a C library intended for use in  |
-|        |          | Software    | embedded systems. Like glibc, newlib is a  |
-|        |          | Distribution| conglomeration of several library parts.   |
-|        |          | (BSD) type  | It is available for use under BSD-type free|
-|        |          | free        | software licenses, which generally makes it|
-|        |          | software    | more suitable to link statically in        |
-|        |          | licenses    | commercial, closed-source applications. For|
-|        |          |             | documentation, FAQs, and additional        |
-|        |          |             | information about newlib, see the newlib_  |
-|        |          |             | documentation.                             |
-+--------+----------+-------------+--------------------------------------------+
++-----------------------------------------------------+----------+-------------+
+| Library                                             | Linking  | License     |
++=====================================================+==========+=============+
+|glibc                                                | dynamic  | GNU Lesser  |
+|  The GNU implementation of the POSIX_ standard      | or static| General     |
+|  runtime library for the C programming language.    |          | Public      |
+|  Designed for portability and performance, glibc is |          | License     |
+|  one of the most popular implementations of the C   |          | (LGPL)      |
+|  library. It is comprised of a set of interdependent|          |             |
+|  libraries including libc, libpthreads, libdl, and  |          |             |
+|  others. For documentation, FAQs, and additional    |          |             |
+|  information about glibc, see GLIBC_                |          |             |
++-----------------------------------------------------+----------+-------------+
+|newlib                                               | static   | Berkeley    |
+|  newlib is a C library intended for use in embedded |          | Software    |
+|  systems. Like glibc, newlib is a conglomeration of |          | Distribution|
+|  several libraries. It is available for use under   |          | (BSD) type  |
+|  BSD-type free software licenses, which generally   |          | free        |
+|  makes it more suitable to link statically in       |          | software    |
+|  commercial, closed-source applications. For        |          | licenses    |
+|  documentation, FAQs, and additional information    |          |             |
+|  about newlib, see newlib_                          |          |             |
++-----------------------------------------------------+----------+-------------+
+
 
 For proprietary (closed-source) applications, your options are to either
 statically link to newlib, or dynamically link to glibc. We recommend
 dynamically linking to glibc, for a couple of reasons:
 
 * The glibc library is widely distributed (it's included in Linux
   distributions), and as such it's mature, hardened, and feature-rich. Your
   code is more likely to compile out-of-the-box with glibc.
 
 * Dynamic loading can provide a big performance benefit for your application if
@@ skipping 362 matching lines @@
 **undefined reference to 'dlopen' collect2: ld returned 1 exit status**
   This is a linker ordering problem that usually results from improper ordering
   of command line flags when linking. Reconfigure your command line string to
   list libraries after the -o flag.
 
 .. |menu-icon| image:: /images/menu-icon.png
 .. _objdump: http://en.wikipedia.org/wiki/Objdump
 .. _GLIBC: http://www.gnu.org/software/libc/index.html
 .. _POSIX: http://en.wikipedia.org/wiki/POSIX
 .. _newlib: http://sourceware.org/newlib/