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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Here’s the patch I mentioned that will allow Linux to be built out of tree, from an existing source directory.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>This patch doesn’t correct for the packages that may require direct access to the source tree (and which assume it’s found under LINUX_DIR) but I can do that later if it’s decided there’s any merit to the patch I’m proposing here.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I’m going to submit a separate suggestion for the generic out of tree build system discussed by Thomas Petazzoni, but that is going to be fairly compatible with what I have here so there’s no reason both suggestions can’t be examined.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>I appreciate your feedback.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Cheers,<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Przemyslaw<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:EN-AU'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:EN-AU'> Stephan Hoffmann [mailto:sho@relinux.de] <br><b>Sent:</b> Tuesday, 15 January 2013 18:51<br><b>To:</b> Przemyslaw Wrzos<br><b>Cc:</b> buildroot@busybox.net<br><b>Subject:</b> Re: [Buildroot] New kernel source mode [Proposal]<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>Am 15.01.2013 02:12, schrieb Przemyslaw Wrzos:<o:p></o:p></p></div><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I’d like to get some feedback on a feature I’d like to contribute to the buildroot project. I’m not quite sure what the process is so I thought I’d start on the mailing list.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>PROPOSAL: Allow a directory (containing the source tree) to be used as the source for the kernel build. The source isn’t copied to the output directory but instead the kernel’s outputmakfile wrapper facility is used.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p></blockquote><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'>Hello,<br><br>do you mean the kernel's out of tree build feature?<br><br><br><o:p></o:p></span></p><p class=MsoNormal>RATIONALE: In my project, changes to the kernel are frequent enough that it is ideal to be able to update the kernel source tree and then build directly from it.<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'><br>Isn't this almost the same as can be achieved using the "Source Override" feature?<br><br>But the advantages of your proposal would be saving some time on each build and some hard disk space. Especially when using huge kernel git archives.<br><br><o:p></o:p></span></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>IMPLEMENTATION: In addition to providing a new source for the linux build process itself, some package makefiles will need to be updated as they currently don’t differentiate between the kernel source tree and build tree.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>I have this working already though I still need to update some of the packages as mentioned above. I wanted to ask if there would be any interest in rolling this into the buildroot project upstream.<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'>If you send your patch set I'll give it a try, but I cannot judge the impact of buildroot's overall structure.<br><br>Kind regards<br><br>Stephan<br><br><o:p></o:p></span></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thanks for your feedback.<o:p></o:p></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'><br><br><br><o:p></o:p></span></p><pre>_______________________________________________<o:p></o:p></pre><pre>buildroot mailing list<o:p></o:p></pre><pre><a href="mailto:buildroot@busybox.net">buildroot@busybox.net</a><o:p></o:p></pre><pre><a href="http://lists.busybox.net/mailman/listinfo/buildroot">http://lists.busybox.net/mailman/listinfo/buildroot</a><o:p></o:p></pre><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";mso-fareast-language:EN-AU'><o:p> </o:p></span></p></div></body></html>