Regen from r205387.

svn path=/www/; revision=35539

en/releases/7.3R/relnotes-detailed.html

@@ -19,7 +19,7 @@ alink="#0000FF">
 <p class="COPYRIGHT">Copyright &copy; 2010 The FreeBSD Documentation Project</p>
 
 <p class="PUBDATE">$FreeBSD: releng/7.3/release/doc/en_US.ISO8859-1/relnotes/article.sgml
-205376 2010-03-20 14:57:24Z hrs $<br />
+205387 2010-03-20 16:39:28Z hrs $<br />
 </p>
 
 <div class="LEGALNOTICE"><a id="TRADEMARKS" name="TRADEMARKS"></a>
@@ -367,20 +367,17 @@ scheduler has been fixed. For more details, see <a
 href="http://security.freebsd.org/advisories/FreeBSD-EN-10:02.sched_ule.asc"
 target="_top">EN-10:02.sched_ule</a>.</p>
 
-<p>FreeBSD now supports shared memory segments for System V IPC which is larger than 2GB
-on 64-bit platforms. For more details, see <tt class="FILENAME">/usr/src/UPDATING</tt>
-file.</p>
-
 <p>The <a
 href="http://www.FreeBSD.org/cgi/man.cgi?query=sglist&sektion=9&manpath=FreeBSD+7.3-stable">
 <span class="CITEREFENTRY"><span class="REFENTRYTITLE">sglist</span>(9)</span></a> API to
 manage scatter/gather lists of physical addresses has been added.</p>
 
 <p>FreeBSD ABI of some of the structures used by the System V IPC API has been changed
-internally. For new kernel modules, the <code class="FUNCTION">kern_msgctl()</code>,
+internally, and it now supports shared memory segments for System V IPC which is larger
-<code class="FUNCTION">kern_semctl()</code>, and <code
+than 2GB on 64-bit platforms. For new kernel modules, the <code
-class="FUNCTION">kern_shmctl()</code> functions will be transparently renamed to the new
+class="FUNCTION">kern_msgctl()</code>, <code class="FUNCTION">kern_semctl()</code>, and
-<code class="FUNCTION">kern_new_*()</code> functions by using ABI shims. The old
+<code class="FUNCTION">kern_shmctl()</code> functions will be transparently renamed to
+the new <code class="FUNCTION">kern_new_*()</code> functions by using ABI shims. The old
 functions remain as the old names to provide backward compatibility for older kernel
 modules.</p>
 
@@ -1116,12 +1113,45 @@ for the long names.</p>
 
 <p>The FreeBSD runtime linker, <a
 href="http://www.FreeBSD.org/cgi/man.cgi?query=rtld&sektion=1&manpath=FreeBSD+7.3-stable">
-<span class="CITEREFENTRY"><span class="REFENTRYTITLE">rtld</span>(1)</span></a> now
+<span class="CITEREFENTRY"><span class="REFENTRYTITLE">rtld</span>(1)</span></a> has been
-supports a new environment variable <code class="VARNAME">LD_ELF_HINTS_PATH</code> for
+improved. The changes include:</p>
-overriding the rtld hints file. This feature gives a convenient way of using a custom set
+
-of shared library that is not located in the default location and switch back. This
+<ul>
-environment variable is automatically unset if the process is tainted with
+<li>
-setuid/setgid.</p>
+<p>The dynamic string token substitution in the <tt class="LITERAL">rpath</tt> and <tt
+class="LITERAL">soname</tt> has been implemented. This can be enabled by setting <code
+class="OPTION">-z <tt class="REPLACEABLE"><i>origin</i></tt></code> option of <a
+href="http://www.FreeBSD.org/cgi/man.cgi?query=ld&sektion=1&manpath=FreeBSD+7.3-stable"><span
+ class="CITEREFENTRY"><span class="REFENTRYTITLE">ld</span>(1)</span></a>. Currently, it
+recognizes <code class="VARNAME">$OSNAME</code>, <code class="VARNAME">$PLATFORM</code>,
+<code class="VARNAME">$OSREL</code>, and <code class="VARNAME">$ORIGIN</code> tokens.
+This translation is unconditionally disabled for setuid/setgid processes.</p>
+</li>
+
+<li>
+<p>PIE (Position Independent Executables) support has been improved. The runtime linker
+now calculates relocation base for the main object, and applies the relocation adjustment
+for all virtual addresses encoded into the ELF structures of it in order to make it
+possible to load PIE binaries at a non-zero base address.</p>
+</li>
+
+<li>
+<p>The way the mapping of the ELF objects has been changed to make wiring of the address
+space possible. It now maps <tt class="LITERAL">PROT_NONE</tt> anonymous memory over the
+whole range first, and then mapping the segments of the object over it. It allocates <tt
+class="LITERAL">.bss</tt> by changing the protection of the range instead of remapping,
+and unnecessary clearing of the text segment when its end is not page-aligned has been
+eliminated.</p>
+</li>
+
+<li>
+<p>A new environment variable <code class="VARNAME">LD_ELF_HINTS_PATH</code> for
+overriding the rtld hints file has been supported. This feature gives a convenient way of
+using a custom set of shared library that is not located in the default location and
+switch back. This environment variable is automatically unset if the process is tainted
+with setuid/setgid.</p>
+</li>
+</ul>
 
 <p>The <a
 href="http://www.FreeBSD.org/cgi/man.cgi?query=strptime&sektion=3&manpath=FreeBSD+7.3-stable">