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Date: Sat, 21 Jan 2012 01:12:43 +0000 From: Al Viro <viro@...IV.linux.org.uk> To: linux-kernel@...r.kernel.org Cc: David Miller <davem@...emloft.net>, Dmitry Kasatkin <dmitry.kasatkin@...el.com> Subject: sparc32 vs lib/mpi I realize that very few people care about sparc32 these days, but... a) __clz_tab[] is defined (with identical contents) in lib/mpi/mpi-bit.c and arch/sparc/lib/divdi3.S. Linker is unhappy, of course... b) the same thing ends up using __udiv_qrnnd(), which simply does not exist on sparc32. There's a Cthulhu-scaring cascade of ifdefs in lib/mpi/longlong.h, with several variants of udiv_qrnnd() for sparc. Unfortunately, it falls back on use of __udiv_qrnnd()... Note that arch/sparc/math-emu/sfp-util_32.h has a definition of udiv_qrnnd() which might match one of inline assembly variants in lib/mpi/longlong.h. Or not. BTW, what the hell is LONGLONG_STANDALONE? Could somebody who might remember still remember that stuff come up with comments? For now I'm disabling everything from INTEGRITY_SIGNATURE down to MPILIB on sparc32 cross-build, but it would be nice to get it at least somewhat sorted out... -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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