Date: Sun, 9 Aug 2015 20:50:05 +0800 From: Lei Zhang <zhanglei.april@...il.com> To: john-dev@...ts.openwall.com Subject: Re: JtR on ARM (NEON) > On Aug 6, 2015, at 9:21 PM, Solar Designer <solar@...nwall.com> wrote: > >> However, I have some problem with the emulation of vroti. Literally, it should be defined this way: >> >> #define vroti_epi32(x, i) \ >> (i > 0 ? vsliq_n_u32(vshrq_n_u32(x, 32 - (i)), x, i) : \ >> vsriq_n_u32(vshlq_n_u32(x, 32 + (i)), x, -(i))) >> >> Somehow it won't compile when and only when building rawSHA1_ng_fmt_plug.o, giving some cryptic error message: >> >> /tmp/ccgVmq2d.s: Assembler messages: >> /tmp/ccgVmq2d.s:4397: Error: co-processor offset out of range > > You may capture this assembly output and see what's on that line, then > try to match it back to a source code line. But yes, I think it's a > compiler bug. The source file rawSHA1_ng_fmt_plug.c is really making some trouble here. When compiled on ZedBoard with gcc 4.6.1, it caused the compiler to segfault: rawSHA1_ng_fmt_plug.c: In function 'sha1_fmt_cmp_all': rawSHA1_ng_fmt_plug.c:789:1: internal compiler error: Segmentation fault This time I didn't use the 2-instruction emulation of vroti, so it's not to blame. I have to temporarily disable this format for ARM. Lei
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