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debug.xml: Rewrite and expand GDB Python pretty-printer section.

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2009-10-07  Phil Muldoon <pmuldoon@redhat.com>

	* doc/xml/manual/debug.xml: Rewrite and expand GDB Python
	pretty-printer section.

From-SVN: r152554
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Phil Muldoon 2009-10-08 08:27:24 +00:00 committed by Phil Muldoon
parent 611b7b5aee
commit b44d3aa84f
2 changed files with 51 additions and 10 deletions
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libstdc++-v3/ChangeLog
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@ -1,3 +1,8 @@
2009-10-07 Phil Muldoon <pmuldoon@redhat.com>
* doc/xml/manual/debug.xml: Rewrite and expand GDB Python
pretty-printer section.
2009-10-07 Chris Jefferson <chris@bubblescope.net>
* testsuite/25_algorithms/rotate/moveable2.cc: New.

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libstdc++-v3/doc/xml/manual/debug.xml
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@ -219,16 +219,52 @@
</programlisting>
<para>
GDB 7.0 will include support for writing pretty-printers in Python.
A library of printers for STL classes already exists within the
libstdc++ svn repository. For information on enabling these printers,
and for other GDB STL support options: please see
<ulink url="http://sourceware.org/gdb/wiki/STLSupport"> "GDB Support
for STL" </ulink> in the GDB wiki. Additionally, in-depth
documentation and discussion of this feature can be found in the GDB
manual. Please see:
<ulink url="http://sourceware.org/gdb/current/onlinedocs//gdb_24.html#SEC260">
"23.2.2.6 Pretty Printing" </ulink>
Starting with version 7.0, GDB includes support for writing
pretty-printers in Python. Pretty printers for STL classes are
distributed with GCC from version 4.5.0. The most recent version of
these printers are always found in libstdc++ svn repository.
To enable these printers, check-out the latest printers to a local
directory:
</para>
<programlisting>
svn co svn://gcc.gnu.org/svn/gcc/trunk/libstdc++-v3/python
</programlisting>
<para>
Next, add the following section to your ~/.gdbinit The path must
match the location where the Python module above was checked-out.
So if checked out to: /home/maude/gdb_printers/, the path would be as
written in the example below.
</para>
<programlisting>
python
import sys
sys.path.insert(0, '/home/maude/gdb_printers/python')
from libstdcxx.v6.printers import register_libstdcxx_printers
register_libstdcxx_printers (None)
end
</programlisting>
<para>
The path should be the only element that needs to be adjusted in the
example. Once loaded, STL classes that the printers support
should print in a more human-readable format. To print the classes
in the old style, use the /r (raw) switch in the print command
(i.e., print /r foo). This will print the classes as if the Python
pretty-printers were not loaded.
</para>
<para>
For additional information on STL support and GDB please visit:
<ulink url="http://sourceware.org/gdb/wiki/STLSupport"> "GDB Support
for STL" </ulink> in the GDB wiki. Additionally, in-depth
documentation and discussion of the pretty printing feature can be
found in "Pretty Printing" node in the GDB manual. You can find
on-line versions of the GDB user manual in GDB's homepage, at
<ulink url="http://sourceware.org/gdb/"> "GDB: The GNU Project
Debugger" </ulink>.
</para>
</sect2>