On May 22, 2015 8:35:15 AM CDT, Dan Liew <d...@su-root.co.uk> wrote: >On 22 May 2015 at 14:21, Cyd Haselton <chasel...@gmail.com> wrote: >> >> >> On May 22, 2015 7:34:16 AM CDT, Jo Shields <direct...@apebox.org> >wrote: >>> >>> >>>On 22/05/15 01:16, cyd wrote: >>>> Let me back up a few steps before I start troublehooting this. >>>> >>>> Does the monolite build of mono 4.0 support ARM...specifically >ARMv7? >>> If >>>> so, are there any modifications I need to make before running 'make >>>&& make >>>> install?' >>> >>>Monolite is CPU-agnostic. It's just bytecode. Mono 4 supports ARMv7, >so >>>the question is what instructions are triggering SIGILL >>>_______________________________________________ >>>Mono-devel-list mailing list >>>Mono-devel-list@lists.ximian.com >>>http://lists.ximian.com/mailman/listinfo/mono-devel-list >> >> Running 'strace -v -o mono.log make check', then 'cat mono.log | grep >-B 12 SIGILL' yields: >> >> mprotect(0x40085000, 4096, PROT_READ) = 0 >> getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) >= 0 >> gettid() = 10243 >> syscall_983045(0x40086f24, 0xffffffb8, 0, 0x40086f24, 0x40087154, 0, >0xbeaec0d0, 0xf0005, 0x4008715c, 0xbe2ed000, 0, 0, 0, 0xbeaec070, >0x4007e254, 0x4007eaa4, 0x60000010, 0x40086f24, 0, 0, 0xc764, 0, 0, 0, >0, 0, 0, 0, 0, 0, 0, 0) = 0 >> mmap2(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, >0) = 0x40089000madvise(0x40089000, 8192, 0xc /* MADV_??? */) = -1 >EINVAL (Invalid argument) >> sigaltstack({ss_sp=0x40089000, ss_flags=0, ss_size=8192}, NULL) = 0 >> sigaction(SIGABRT, {0x40076a71, [], SA_STACK|SA_RESTART|SA_SIGINFO}, >NULL, 0x1dd9028) = 0 >> sigaction(SIGBUS, {0x40076a71, [], SA_STACK|SA_RESTART|SA_SIGINFO}, >NULL, 0x1dd9028) = 0 >> sigaction(SIGFPE, {0x40076a71, [], SA_STACK|SA_RESTART|SA_SIGINFO}, >NULL, 0x1dd9028) = 0 >> sigaction(SIGILL, {0x40076a71, [], SA_STACK|SA_RESTART|SA_SIGINFO}, >NULL, 0x1dd9028) = 0 >> >> I have zero experience reading straces but if I had to guess it looks >like a function is making an invalid memory call. > >Isn't the sigaction there setting up the signal handler for SIGILL? If >so this is probably the wrong part to be looking at. I'm slightly >confused by the sigaction written here because it's taking four >arguments but sigaction only takes three (I'm not great at reading the >output of strace either). >
Any chance the four arg sigaction is causing the problem? >Another way to debug this is run the program under gdb and make sure >you set it up to intercept SIGILL. When gdb catches SIGILL you can >walk through the stack and also examine the assembly to see if >anything looks suspect to you. Unfortunately I don't have a working gdb on this device. If absolutely necessary I could port it then come back to the mono build, but I'd prefer other options (if available). I do have a working addr2line and a logcat app, if that helps...? -- Sent from my Android device with K-9 Mail. Please excuse my brevity. _______________________________________________ Mono-devel-list mailing list Mono-devel-list@lists.ximian.com http://lists.ximian.com/mailman/listinfo/mono-devel-list
