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<p class="MsoNormal"><span style="color:#1F497D">Hi Swarp,<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><br>
</span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D">></span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"> clang -g -O2 -o .libs/mergedexe .libs/mergedbc.bc -pthread -Wl,--export-dynamic .libs/lib1.a
-lssl -lcrypto –ldl –pthread .libs/lib2.so</span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#1F497D">Thanks. This works fine. The project that I am migrating is huge and has various massive Makefiles. But I am going to try this 3 step approach to apply passes and compile the code.
If that gets too complex then I will move to GoldPlugin. <o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#1F497D">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="color:#1F497D">--Ahmad<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"><br>
<br>
-Swarup.<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black"> llvmdev-bounces@cs.uiuc.edu [llvmdev-bounces@cs.uiuc.edu]
on behalf of Hassan, Ahmad [ahmad.hassan@sap.com]<br>
<b>Sent:</b> Thursday, January 17, 2013 7:56 AM<br>
<b>To:</b> llvmdev@cs.uiuc.edu<br>
<b>Subject:</b> [LLVMdev] Migrate Project Build system to LLVM BitCode</span><span style="font-size:12.0pt;font-family:"Times New Roman","serif";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="color:black">Hi All,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">I am migrating a build system of an existing project from ‘Object files’ based executable generation to ‘LLVM Bitcode’ files based exe generation and applying OPT pass to LLVM Bitcode. I found out the following
4 step procedure. Please let me know if this is the right procedure or is there any other easy way of doing it. I need to modify ‘Makefile’ accordingly. I read on some forums about GoldPlugin but I don’t know exactly if it would be useful here:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:black">Original Makefile- Object Files based Build/Link Steps:
</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">clang -g -O2 –o .libs/mergedexe file1.o file2.o file3.o -pthread -Wl,--export-dynamic .libs/lib1.a -lssl –ldl –pthread .libs/lib2.so
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="color:black">Proposed Makefile- LLVM Bitcode based Build/Link Steps:</span></b><span style="color:black"><o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt"><span style="color:black">1.</span><span style="font-size:7.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="color:black">llvm-link -o .libs/mergedbc.bc file1.bc file2.bc file3.bc<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt"><span style="color:black">2.</span><span style="font-size:7.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="color:black">opt –o optmerged.bc -load /path/to/Mypass.so -mypass < mergedbc.bc<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt"><span style="color:black">3.</span><span style="font-size:7.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="color:black">llc -o .libs/mergedbc.s .libs/mergedbc.bc<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:18.0pt;text-indent:-18.0pt"><span style="color:black">4.</span><span style="font-size:7.0pt;font-family:"Times New Roman","serif";color:black">
</span><span style="color:black">gcc -g -O2 -o .libs/mergedexe .libs/mergedbc.s -pthread -Wl,--export-dynamic .libs/lib1.a -lssl -lcrypto –ldl –pthread .libs/lib2.so<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black">Ahmad<o:p></o:p></span></p>
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