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| <p>Optimizer.pl – tool for eliminating redundant exported |
| symbols.</p> |
| <p>Make new optimized .def-file (first step) or make lists of |
| unused export symbols (as second step).</p> |
| <p>Synopsis:</p> |
| <p>perl optimizer.pl [-pro] -c|a</p> |
| <p>Description</p> |
| <p>-a</p> |
| <p>Analyse the stand. This should be used as a first step. New, |
| optimized .def files are produced on this step.</p> |
| <p>It is recommended when finished this first step to build the |
| libraries with modified wnt.mk. If you remove /OPT:NOREF option for |
| linker in this file, you'll get fully optimized version of |
| libraries (there's no guarantee that it will be working version). |
| You get also correspondent .map file. It seems to worth efforts to |
| analyse stand again and rebuild libraries, since now some unused |
| imported symbols might be thrown away.</p> |
| <p>-c</p> |
| <p>Compare the lists. This should be used as a first step. On this |
| step new .map files and old .map-files are compared and file with |
| obsolete symbols is stored in the same directory as .obs, where |
| these two are.</p> |
| <p>How it works:</p> |
| <p>This tool is a Perl script, its functionality is implemented on |
| analysis of .def and .map files produced by MS linker cl.exe. It |
| must be started from the main directory of the stand with |
| options:</p> |
| <p>The tool looks for the symbols imported from another libraries |
| in correspondent .map files and makes a complete table of used |
| symbols (CTS) in memory, than .def file for each library is parsed |
| and if there are symbols which are not found in CTS, than they are |
| thrown away in new .def file. Former .def file is backed up as |
| .olddef if there were no .olddef file before. You get the entire |
| list of the libraries and projects to be rebuilt if any new .def |
| files were made. There are some symbols which are exported a |
| priori, they are:</p> |
| <p>component_getDescriptionFunc</p> |
| <p>component_getImplementationEnvironment</p> |
| <p>component_getFactory</p> |
| <p>component_writeInfo</p> |
| <p>This table can be enlarged when needed.</p> |
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