James Cook <falsif...@falsifian.org> writes: > Here are some results of debugging with lldb. > > > With cabal-bundler and pandoc, it seems to be the xgetbv instruction > itself: > > > $ lldb /usr/local/bin/cabal-bundler > (lldb) target create "/usr/local/bin/cabal-bundler" > Current executable set to '/usr/local/bin/cabal-bundler' (x86_64). > (lldb) run > Process 90738 launched: '/usr/local/bin/cabal-bundler' (x86_64) > Process 90738 stopped > * thread #1, stop reason = signal SIGILL > frame #0: 0x00000000004c12ba cabal-bundler`___lldb_unnamed_symbol522 + 90 > cabal-bundler`___lldb_unnamed_symbol522: > -> 0x4c12ba <+90>: xgetbv
Unless I'm missing something, xgetvb is not available in your CPU. cpu0: AMD Phenom(tm) II X3 710 Processor, 2611.95 MHz, 10-04-02, patch 010000db cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,3DNOW2,3DNOW,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,HWPSTATE,ITSC XGETBV1 is missing in the above and my cursory reading of https://en.wikipedia.org/wiki/X86-64#AMD64 supports this conclusion. Somebody will have to adapt the checking code to be conditional on this instruction presence if it's deemed important enough to support this CPU. Thanks Greg
