65 lines
1.7 KiB
Text
65 lines
1.7 KiB
Text
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GDB Python pretty printers
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==========================
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Since some time, GDB supports Python written extension modules, especially
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for pretty printing of data structures. A selection of pre-defined pretty printers
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for STL containers is part of the standard distribution. The graphical debugger frontend
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provided by the Eclipse CDT automatically uses this debugger provided presentation
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to show the value of variables in the detail pane of the variables view, while the
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individual variable entries always show the expandable structure view.
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Installation notes
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------------------
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This feature requires an python enabled GDB (>6.8.50). Debian/Lenny isn't enough,
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but compiling the GDB package from Debian/Squeeze (GDB-7.1) is straightforward.
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Moreover, you need to check out and install the python pretty-printers and
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you need to activate them through your +~/.gdbinit+
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[source,python]
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----
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#
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# .gdbinit : GDB Config file
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#
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# 3/2010 - Ichthyo: add python pretty printers for STL
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python
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import sys
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sys.path.insert(0, '/opt/gdb/stlPrettyPrinter')
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from libstdcxx.v6.printers import register_libstdcxx_printers
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register_libstdcxx_printers (None)
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end
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----
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For more informations link:http://sourceware.org/gdb/wiki/STLSupport[see here..]
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.Hello World
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[source,C]
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----
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#include <iostream>
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#include <string>
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#include <vector>
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using std::string;
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using std::cout;
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using std::endl;
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int
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main (int, char**)
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{
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std::string str = "hullo wöld";
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std::vector<int> vec (1000);
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for (uint i = 0; i < vec.size(); ++i)
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vec[i] = i;
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cout << str << "\n.gulp.\n";
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return 0;
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}
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----
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When selecting the string or the vector in the Eclipse variables view
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(or when issuing "print str" at the GDB prompt), the GDB python pretty-printer
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should be activated.
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