http://elinux.org/index.php?title=CELF_Project_Proposal/Implement_NUBI_ABI_for_MIPS&feed=atom&action=history 2013-06-19T10:29:02Z Revision history for this page on the wiki MediaWiki 1.22alpha http://elinux.org/index.php?title=CELF_Project_Proposal/Implement_NUBI_ABI_for_MIPS&diff=15897&oldid=prev 2009-12-22T01:24:15Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 01:24, 22 December 2009</td> </tr><tr><td colspan="2" class="diff-lineno">Line 31:</td> <td colspan="2" class="diff-lineno">Line 31:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; do it. Just stumbled upon Linux inefficiency on MIPS and thought it</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; do it. Just stumbled upon Linux inefficiency on MIPS and thought it</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; might be a good CELF OPP.</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>&#160; might be a good CELF OPP.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Project proposals]]</ins></div></td></tr> </table>

Tim Bird http://elinux.org/index.php?title=CELF_Project_Proposal/Implement_NUBI_ABI_for_MIPS&diff=15896&oldid=prev 2009-12-22T01:23:59Z

<p>add proposal</p> <p><b>New page</b></p><div>; Summary : Implement NUBI ABI for MIPS<br /> <br /> ; Proposer : Mikhail Gusarov<br /> <br /> == Description ==<br /> MIPS ABI in use are quite inefficient [1]: no dedicated TLS<br /> register, ancient floating point calling conventions, inefficient<br /> registers allocation etc.<br /> <br /> Recent work in gcc/glibc fixed the most glaring problems by introducing<br /> PLT which allowed executable code to be compiled without PIC, but the<br /> rest is not addressed [5]<br /> <br /> There is draft of new MIPS ABI addressing the shortcomings of<br /> o32/o64/n64 and providing the framework for unifying the<br /> vendor-specific extensions for older ABIs [2] [3] [4]<br /> <br /> The proposed task consists of adding NUBI MIPS ABI to binutils, gcc and<br /> glibc.<br /> <br /> References:<br /> [1] http://www.linux-mips.org/wiki/WhatsWrongWithO32N32N64<br /> [2] http://www.linux-mips.org/wiki/IntroducingNUBI<br /> [3] http://www.linux-mips.org/wiki/NUBI<br /> [4] http://www.linux-mips.org/pub/linux/mips/doc/NUBI/<br /> [5] http://gcc.gnu.org/gcc-4.4/changes.html (&quot;MIPS&quot; section)<br /> <br /> == Comments ==<br /> Mihkail Gusarov writes:<br /> While I propose it, I have no qualification for even trying to<br /> do it. Just stumbled upon Linux inefficiency on MIPS and thought it<br /> might be a good CELF OPP.</div>

Tim Bird