Keno, note this may be another example of (K)ubuntu giving worse backtraces.
--Tim On Tuesday, January 05, 2016 05:18:19 PM Keno Fischer wrote: > Hmm, I don't know. I know the DWARF information is there, but I'm not sure > why GDB isn't picking it up. I'll add it to my list of things to check, but > for now I don't know what the issue is. > There's some logging in gdb (I don't quite remember the option, but apropos > jit will probably tell you) that might tell you whether it detects the jit > code and just doesn't use it for some reason or whether it doesn't pick up > on the breakpoint. On the julia side, the registration with GDB should > happen here ( > https://github.com/JuliaLang/julia/blob/ce1e856975af4dc8fc12dac8f5526c92feda > 60cb/src/jitlayers.cpp#L178), in latest master at least. > > On Tue, Jan 5, 2016 at 4:23 PM, 'Jamie Brandon' via julia-users < > > [email protected]> wrote: > > Ok, so I built successfully and versioninfo shows LLVM 3.7.1. I do get > > debug info for Julia itself, but I'm still seeing nothing for my own > > code. I can live without I guess - wait for Julia 0.5? > > > > (gdb) bt > > #0 jl_breakpoint (v=0x7ffdf0928018) at > > /home/jamie/julia/src/builtins.c:1659 > > #1 0x00007ffff7eb401b in ?? () > > #2 0x00007fffffffbe40 in ?? () > > #3 0x00007ffdf3f53f20 in ?? () > > #4 0x69f839e0ba7ea7c4 in ?? () > > #5 0x00007fffffffc7a8 in ?? () > > #6 0x0000000000000002 in ?? () > > #7 0x000000000000000a in ?? () > > #8 0x00007fffffffc6f8 in ?? () > > #9 0x00007ffdf40c0e90 in ?? () > > #10 0x0000000000000000 in ?? () > > > > jamie@wanderer:~/julia$ ./julia > > > > _ > > > > _ _ _(_)_ | A fresh approach to technical computing > > > > (_) | (_) (_) | Documentation: http://docs.julialang.org > > > > _ _ _| |_ __ _ | Type "?help" for help. > > > > | | | | | | |/ _` | | > > | | | > > | | |_| | | | (_| | | Version 0.5.0-dev+1985 (2016-01-04 00:07 UTC) > > > > _/ |\__'_|_|_|\__'_| | Commit 1d46ca4* (1 day old master) > > > > |__/ | x86_64-linux-gnu > > > > julia> versioninfo(true) > > Julia Version 0.5.0-dev+1985 > > Commit 1d46ca4* (2016-01-04 00:07 UTC) > > DEBUG build > > > > Platform Info: > > System: Linux (x86_64-linux-gnu) > > CPU: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz > > WORD_SIZE: 64 > > > > Ubuntu 15.10 > > > > uname: Linux 4.2.0-22-generic #27-Ubuntu SMP Thu Dec 17 22:57:08 UTC > > > > 2015 x86_64 x86_64 > > Memory: 7.709388732910156 GB (192.3671875 MB free) > > Uptime: 143526.0 sec > > Load Avg: 0.61181640625 1.06640625 4.41552734375 > > > > Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz: > > speed user nice sys idle > > > > irq > > #1 3000 MHz 891057 s 6792 s 81300 s 4590884 s > > 0 s > > #2 2798 MHz 891458 s 6264 s 70433 s 747529 s > > 0 s > > #3 2700 MHz 921910 s 6962 s 73433 s 743126 s > > 0 s > > #4 2700 MHz 894255 s 7091 s 68062 s 743781 s > > 0 s > > > > BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell) > > LAPACK: libopenblas64_ > > LIBM: libopenlibm > > LLVM: libLLVM-3.7.1 > > > > Environment: > > TERM = xterm-256color > > XDG_SESSION_PATH = /org/freedesktop/DisplayManager/Session1 > > XDG_SEAT_PATH = /org/freedesktop/DisplayManager/Seat0 > > DEFAULTS_PATH = /usr/share/gconf/i3.default.path > > PATH = > > > > /home/jamie/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/b > > in:/usr/games:/usr/local/games> > > MANDATORY_PATH = /usr/share/gconf/i3.mandatory.path > > HOME = /home/jamie > > > > Package Directory: /home/jamie/.julia/v0.5 > > No packages installed > > > > On 5 January 2016 at 14:30, Keno Fischer <[email protected]> > > > > wrote: > > > Yeah, that should work. > > > > > > On Tue, Jan 5, 2016 at 3:28 PM, 'Jamie Brandon' via julia-users > > > > > > <[email protected]> wrote: > > >> Ooops, MARCH=native > > >> > > >> On 5 January 2016 at 14:26, Jamie Brandon <[email protected]> > > > > wrote: > > >> > Ok, so I currently have Make.user with: > > >> > > > >> > LLVM_VER=3.7.1 > > >> > ARCH=native > > >> > > > >> > and I'm building with `make debug`. Does that seem right? > > >> > > > >> > On 5 January 2016 at 14:18, Keno Fischer < > > > > [email protected]> > > > > >> > wrote: > > >> >> However, taking another look at your backtrace, that's missing debug > > >> >> info in > > >> >> the runtime (rather than any generated code), so you'd have to check > > >> >> whether > > >> >> your version of libjulia is built with debug info. > > >> >> > > >> >> On Tue, Jan 5, 2016 at 3:14 PM, Isaiah Norton < > > > > [email protected]> > > > > >> >> wrote: > > >> >>> sorry, autocorrect messed that up: > > >> >>> `make -C deps distclean-llvm` > > >> >>> > > >> >>> On Tue, Jan 5, 2016 at 9:08 AM, Isaiah Norton > > >> >>> <[email protected]> > > >> >>> > > >> >>> wrote: > > >> >>>> Probably need 'make -C steps distclean-llvm' before rebuild. > > >> >>>> > > >> >>>> > > >> >>>> On Tuesday, January 5, 2016, Jamie Brandon < > > > > [email protected]> > > > > >> >>>> wrote: > > >> >>>>> I'll give that a go. Thanks :) > > >> >>>>> > > >> >>>>> On Tuesday, 5 January 2016 14:00:49 UTC, Keno Fischer wrote: > > >> >>>>>> This only works with new versions of LLVM. We're in the middle > > >> >>>>>> of > > >> >>>>>> transitioning to the new LLVM on master, so I think at this > > > > point, > > > > >> >>>>>> just > > >> >>>>>> putting LLVM_VER=3.7.1 in your Make.user should be sufficient. > > >> >>>>>> > > >> >>>>>> On Tue, Jan 5, 2016 at 2:50 PM, Jamie Brandon > > >> >>>>>> <[email protected]> > > >> >>>>>> > > >> >>>>>> wrote: > > >> >>>>>>> I've seen it mentioned (eg in > > > > https://groups.google.com/forum/#!msg/julia-dev/eBwqLqiZSPc/N0QlPMC015EJ) > > > > >> >>>>>>> that Julia can emit DWARF info for Julia functions. This does > > > > not > > > > >> >>>>>>> seem to be > > >> >>>>>>> working for me (see gdb below and cachegrind attached). Is > > >> >>>>>>> there > > >> >>>>>>> something I > > >> >>>>>>> need to enable, or some dependency I need to update? > > >> >>>>>>> > > >> >>>>>>> Breakpoint 1, 0x00007ffff6edbff4 in jl_array_grow_end () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> (gdb) bt > > >> >>>>>>> #0 0x00007ffff6edbff4 in jl_array_grow_end () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #1 0x00007ffff6edc687 in jl_cell_1d_push () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #2 0x00007ffff6ede8a0 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #3 0x00007ffff6ede7e8 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #4 0x00007ffff6ede7e8 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #5 0x00007ffff6edd1c7 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #6 0x00007ffff6edea88 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #7 0x00007ffff6ede15b in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #8 0x00007ffff6eddcfa in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #9 0x00007ffff6ede7ce in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #10 0x00007ffff6edd1c7 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #11 0x00007ffff6edea88 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #12 0x00007ffff6eddcfa in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #13 0x00007ffff6eddcfa in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #14 0x00007ffff6eddab8 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #15 0x00007ffff6ede15b in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #16 0x00007ffff6ede15b in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #17 0x00007ffff6ee0534 in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #18 0x00007ffff6ee0b58 in jl_restore_system_image_data () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #19 0x00007ffff6ee0cdb in jl_restore_system_image () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #20 0x00007ffff6ed83cb in ?? () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #21 0x00007ffff6ed8d0c in julia_init () from > > >> >>>>>>> /usr/bin/../lib/x86_64-linux-gnu/julia/libjulia.so > > >> >>>>>>> #22 0x0000000000401743 in main (argc=1, argv=0x7fffffffe280) at > > >> >>>>>>> repl.c:594 > > >> >>>>>>> > > >> >>>>>>> julia> versioninfo(true) > > >> >>>>>>> Julia Version 0.4.2 > > >> >>>>>>> Commit bb73f34 (2015-12-06 21:47 UTC) > > >> >>>>>>> > > >> >>>>>>> Platform Info: > > >> >>>>>>> System: Linux (x86_64-linux-gnu) > > >> >>>>>>> CPU: Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz > > >> >>>>>>> WORD_SIZE: 64 > > >> >>>>>>> > > >> >>>>>>> Ubuntu 15.10 > > >> >>>>>>> > > >> >>>>>>> uname: Linux 4.2.0-22-generic #27-Ubuntu SMP Thu Dec 17 > > > > 22:57:08 > > > > >> >>>>>>> UTC > > >> >>>>>>> 2015 x86_64 x86_64 > > >> >>>>>>> Memory: 7.709388732910156 GB (74.875 MB free) > > >> >>>>>>> Uptime: 138002.0 sec > > >> >>>>>>> Load Avg: 0.8466796875 0.62451171875 0.53955078125 > > >> >>>>>>> > > >> >>>>>>> Intel(R) Core(TM) i7-4500U CPU @ 1.80GHz: > > >> >>>>>>> speed user nice sys > > >> >>>>>>> idle > > >> >>>>>>> > > >> >>>>>>> irq > > >> >>>>>>> #1 2984 MHz 596284 s 6481 s 60313 s 4356735 > > >> >>>>>>> s > > >> >>>>>>> 0 s > > >> >>>>>>> #2 2982 MHz 605240 s 5964 s 50700 s 502866 > > >> >>>>>>> s > > >> >>>>>>> 0 s > > >> >>>>>>> #3 2700 MHz 642616 s 6513 s 53248 s 492041 > > >> >>>>>>> s > > >> >>>>>>> 0 s > > >> >>>>>>> #4 2700 MHz 605240 s 6628 s 48010 s 502254 > > >> >>>>>>> s > > >> >>>>>>> 0 s > > >> >>>>>>> > > >> >>>>>>> BLAS: libopenblas (NO_LAPACKE DYNAMIC_ARCH NO_AFFINITY > > > > Haswell) > > > > >> >>>>>>> LAPACK: liblapack.so.3 > > >> >>>>>>> LIBM: libopenlibm > > >> >>>>>>> LLVM: libLLVM-3.3 > > >> >>>>>>> > > >> >>>>>>> Environment: > > >> >>>>>>> TERM = xterm-256color > > >> >>>>>>> XDG_SESSION_PATH = /org/freedesktop/DisplayManager/Session1 > > >> >>>>>>> XDG_SEAT_PATH = /org/freedesktop/DisplayManager/Seat0 > > >> >>>>>>> DEFAULTS_PATH = /usr/share/gconf/i3.default.path > > >> >>>>>>> PATH = > > > > /home/jamie/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/b > > in:/usr/games:/usr/local/games> > > >> >>>>>>> MANDATORY_PATH = /usr/share/gconf/i3.mandatory.path > > >> >>>>>>> HOME = /home/jamie
