M.Canales.es wrote: > El Sábado, 9 de Diciembre de 2006 18:21, Jim Gifford escribió: > >> -mabi is for all MIPS. >> >> Now any MIPS that supports 64bit supports N32. >> > > I know that in CLFS-1.x for MIPS multilib -mabi=32, -mabi=n32, and -mabi=64 > are used to build the diferent library flavours. > > What I don't know and isn't clear in the cross-tools/common/abi.xml CLFS > Embedded page is what of them must be used for each MIPS processor type > listed in the table found in cross-tools/mips/variables.xml. > > I need be sure that in jhalfs the proper ABI value is selected for the > choosen > target-triple for both MIPS and x86 archs. > > At this moment we have this: > > config ABI > string > depends BOOK_CLFS3 > default "-m32" if DATA_32 && ARCH_X86 > default "-m64" if DATA_64 && ARCH_X86 > default "-mabi=32" if DATA_32 && ARCH_MIPS && PROC_mipsel > default "-mabi=64" if DATA_64 && ARCH_MIPS && PROC_mipsel > default "-mabi=n32" if DATA_32 && ARCH_MIPS && PROC_mips > default "-mabi=n64" if DATA_64 && ARCH_MIPS && PROC_mips > > I think that -m64 isn't supported yet by the book and that some of the MIPS > settings are wrong. > http://techpubs.sgi.com/library/tpl/cgi-bin/getdoc.cgi/0640/bks/SGI_Developer/books/Mpro_n32_ABI/sgi_html/ch01.html#id73069
o32 = -mabi=32 . Uses 32bit integers, a 32bit instruction set (mips1/2), and 32bit registers on a 32bit processor. n32 = -mabi=n32. Uses 32bit integers, a 64bit instruction set (mips3/4), and 64bit registers (with 32bit numbers) on a 64bit processor. n64 = -mabi=64. Uses 64bit integers, a 64bit instructions set (mips3/4), and 64bit registers on a 64bit processor. To sum it down. -mabi=32 is good for 32bit processors. o32 is for 32bit processors only but if you have a 64bit processor all three options are valid, regardless if the system is big endian (mips) or little endian (mipsel). I would change the above to something like this. choice prompt "Mips64 Build ABI" depends ARCH_MIPS && BOOK_CLFS3 && DATA_64 default CLFS3_MIPS64_64 config CLFS3_MIPS64_N32 bool "n32" config CLFS3_MIPS64_64 bool "64" endchoice config ABI string depends BOOK_CLFS3 default "-m32" if DATA_32 && !ARCH_MIPS default "-m64" if DATA_64 && !ARCH_MIPS default "-mabi=32" if DATA_32 && ARCH_MIPS default "-mabi=n32" if DATA_64 && ARCH_MIPS && CLFS3_MIPS64_N32 default "-mabi=64" if DATA_64 && ARCH_MIPS && CLFS3_MIPS64_64 > >> Every other architecture supports the standard -m32 and -m64 including >> x86_64. >> > > CLFS Embedded support at this momment x86_64 or not? > > What is on the main page has been tested and works. I personally have not tried for x86_64 yet. _______________________________________________ Clfs-dev mailing list [email protected] http://lists.cross-lfs.org/cgi-bin/mailman/listinfo/clfs-dev
