Do you have just the SDK (which doesn't require Cygwin) or a rooted phone? If so, I can upload instructions that don't use the NDK.
On Fri, Jan 30, 2015 at 6:19 PM, Cyd Haselton <chasel...@gmail.com> wrote: > This is going to take some time...here's why: > > Downloading and installing the NDK/SDK won't be too hard...I have to > clear some space...but my primary machine is running Windows 7 and I'd > rather swallow hot coals than install Cygwin. I've got next to no > experience with it, other than knowing that the NDK recommends against > it. > > I've got a CentOS VM...but it's currently in tarball form on an > external drive for space reasons...and it only has the NDK installed. > If I am able to get it back up and running, there's still the task of > getting adb connected to my device. from the VM. > > Not saying it's impossible...just that it'll take time...and I'll > probably have to tackle it tomorrow (earliest) or Sunday (latest). In > the meantime I'll also check to see if there's anything that can a) > run in an Android terminal and b) can take a stack trace; it would be > far, far, far easier than either option above. > > > > On Fri, Jan 30, 2015 at 4:19 PM, Ryan Gonzalez <rym...@gmail.com> wrote: > > Do you have the Android SDK and NDK installed? If so... > > > > Using Google, I've created this series of steps, which may (or may not) > > work: > > > > 1. Make sure you have a copy of Python on your computer and make sure > that > > it's built with debug symbols. > > > > 2. Run the following commands from a shell with your phone plugged in: > > > > adb forward tcp:5039 tcp:5039 > > adb shell /system/bin/gdbserver tcp:5039 <path to python executable> > > <path to ndk binary folder>/arm-linux-androideabi-gdb > > > > Now, GDB should have opened, so type the following commands: > > > > set solib-search-path <directory holder libpython.so> > > file <path to local python executable> > > target remote :5055 > > run > > > > Now, wait for the program to crash and type: > > > > backtrace > > > > You should now see a complete backtrace in your terminal. To GDB, type: > > > > quit > > > > *crosses fingers* > > > > On Fri, Jan 30, 2015 at 2:50 PM, Cyd Haselton <chasel...@gmail.com> > wrote: > >> > >> Unfortunately it is still reporting the same function :-/. > >> > >> On Fri, Jan 30, 2015 at 1:44 PM, Ryan Gonzalez <rym...@gmail.com> > wrote: > >> > Yes... > >> > > >> > Can you check if it's crashing in a different function now? > >> > > >> > On Fri, Jan 30, 2015 at 1:39 PM, Cyd Haselton <chasel...@gmail.com> > >> > wrote: > >> >> > >> >> Yes I did. I did have to enter all the information in manually...I'm > >> >> not familiar with automated patch application tools and even if I > >> >> were, I'm pretty sure I wouldn't have them on my device. > >> >> > >> >> Just so that I'm absolutely sure I got everything correct...you > wanted > >> >> all of the lines in the patch commented out, correct? Basically > >> >> everything referencing oldloc? > >> >> > >> >> On Fri, Jan 30, 2015 at 1:00 PM, Ryan Gonzalez <rym...@gmail.com> > >> >> wrote: > >> >> > Are you sure the patch was applied correctly? I was SO sure it > would > >> >> > work! > >> >> > > >> >> > FYI, you tried the patch I attached to the email message, right? > >> >> > > >> >> > On Fri, Jan 30, 2015 at 12:58 PM, Cyd Haselton < > chasel...@gmail.com> > >> >> > wrote: > >> >> >> > >> >> >> Update: I did try the patch after getting it installed correctly, > >> >> >> but > >> >> >> I'm still getting a segfault on the newly built binary. > >> >> >> Will post info this afternoon. > >> >> >> > >> >> >> On Fri, Jan 30, 2015 at 12:10 PM, Ryan Gonzalez <rym...@gmail.com > > > >> >> >> wrote: > >> >> >> > No, it returns NULL if malloc gives it a raw pointer. It > >> >> >> > unconditionally > >> >> >> > checks the length of the (possibly null) string argument first. > >> >> >> > > >> >> >> > Please try the patch I attached in the last email. It *might* > fix > >> >> >> > the > >> >> >> > issue. > >> >> >> > Android has crappy locale handling. > >> >> >> > > >> >> >> > On Fri, Jan 30, 2015 at 12:09 PM, Cyd Haselton > >> >> >> > <chasel...@gmail.com> > >> >> >> > wrote: > >> >> >> >> > >> >> >> >> Unless i'm reading something incorrectly, _PyMem_RawStrdup > is > >> >> >> >> currently returning NULL when given a null pointer. > >> >> >> >> > >> >> >> >> From obmalloc.c > >> >> >> >> > >> >> >> >> _PyMem_RawStrdup(const char *str) > >> >> >> >> { > >> >> >> >> size_t size; > >> >> >> >> char *copy; > >> >> >> >> size = strlen(str) + 1; > >> >> >> >> copy = PyMem_RawMalloc(size); > >> >> >> >> if (copy == NULL) > >> >> >> >> return NULL; > >> >> >> >> memcpy(copy, str, size); > >> >> >> >> return copy; > >> >> >> >> } > >> >> >> >> > >> >> >> >> On Fri, Jan 30, 2015 at 11:56 AM, Ryan Gonzalez > >> >> >> >> <rym...@gmail.com> > >> >> >> >> wrote: > >> >> >> >> > I seriously doubt the issue is in that file; _PyMem_RawStrdup > >> >> >> >> > crashes > >> >> >> >> > when > >> >> >> >> > calling strlen. It's that whatever is calling it is likely > >> >> >> >> > asking > >> >> >> >> > it > >> >> >> >> > to > >> >> >> >> > duplicate a null pointer. Basically, it's probably the > caller's > >> >> >> >> > fault. > >> >> >> >> > > >> >> >> >> > You could always try modifying _PyMem_RawStrdup to return > NULL > >> >> >> >> > when > >> >> >> >> > given a > >> >> >> >> > null pointer and see where it then segfaults. > >> >> >> >> > > >> >> >> >> > On Fri, Jan 30, 2015 at 11:53 AM, Cyd Haselton > >> >> >> >> > <chasel...@gmail.com> > >> >> >> >> > wrote: > >> >> >> >> >> > >> >> >> >> >> Alternatively, is there a hassle-free way to find out what > >> >> >> >> >> changed > >> >> >> >> >> in > >> >> >> >> >> obmalloc.c between 2.7.x and 3.4.x? > >> >> >> >> >> > >> >> >> >> >> > >> >> >> >> >> On Fri, Jan 30, 2015 at 9:29 AM, Cyd Haselton > >> >> >> >> >> <chasel...@gmail.com> > >> >> >> >> >> wrote: > >> >> >> >> >> > There's a related strdup patch for readline.c, mentioned > >> >> >> >> >> > here:http://bugs.python.org/issue21390 and here > >> >> >> >> >> > https://github.com/rave-engine/python3-android/issues/2. > >> >> >> >> >> > There's a patch, but I'm not sure how to modify it for > >> >> >> >> >> > obmalloc.c, > >> >> >> >> >> > as > >> >> >> >> >> > (I think) the functions all belong to Python...they're all > >> >> >> >> >> > prefixed > >> >> >> >> >> > with _PyXx > >> >> >> >> >> > > >> >> >> >> >> > On Fri, Jan 30, 2015 at 9:05 AM, Cyd Haselton > >> >> >> >> >> > <chasel...@gmail.com> > >> >> >> >> >> > wrote: > >> >> >> >> >> >> Absolutely. Good thing I have addr2line on device > >> >> >> >> >> >> > >> >> >> >> >> >> /bld/python/Python-3.4.2 $ addr2line -C -f -e > >> >> >> >> >> >> /lib/libpython3.4m.so.1.0 > >> >> >> >> >> >> 0008bbc8 > >> >> >> >> >> >> _PyMem_RawStrdup > >> >> >> >> >> >> /bld/python/Python-3.4.2/Objects/obmalloc.c:323 > >> >> >> >> >> >> /bld/python/Python-3.4.2 $ > >> >> >> >> >> >> > >> >> >> >> >> >> > >> >> >> >> >> >> > >> >> >> >> >> >> On Thu, Jan 29, 2015 at 8:26 PM, Ryan <rym...@gmail.com> > >> >> >> >> >> >> wrote: > >> >> >> >> >> >>> Could you try the steps at > >> >> >> >> >> >>> http://stackoverflow.com/a/11369475/2097780? They > >> >> >> >> >> >>> allow you to get a better idea of where libc is > crashing. > >> >> >> >> >> >>> > >> >> >> >> >> >>> Cyd Haselton <chasel...@gmail.com> wrote: > >> >> >> >> >> >>>> > >> >> >> >> >> >>>> Managed to get this out of logcat: > >> >> >> >> >> >>>> F(11914) Fatal signal 11 (SIGSEGV) at 0x00000000 > >> >> >> >> >> >>>> (code=1), > >> >> >> >> >> >>>> thread > >> >> >> >> >> >>>> 11914 (python) (libc) > >> >> >> >> >> >>>> > >> >> >> >> >> >>>> [ 01-29 19:30:55.855 23373:23373 F/libc ] > >> >> >> >> >> >>>> Fatal signal 11 (SIGSEGV) at 0x00000000 (code=1), > thread > >> >> >> >> >> >>>> 23373 > >> >> >> >> >> >>>> (python) > >> >> >> >> >> >>>> > >> >> >> >> >> >>>> Less detail than strace but it seems to be that python > is > >> >> >> >> >> >>>> segfaulting > >> >> >> >> >> >>>> libc... > >> >> >> >> >> >>>> > >> >> >> >> >> >>>> On Wed, Jan 28, 2015 at 11:23 AM, Ryan Gonzalez > >> >> >> >> >> >>>> <rym...@gmail.com> > >> >> >> >> >> >>>> wrote: > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> On Wed, Jan 28, 2015 at 10:43 AM, Guido van Rossum > >> >> >> >> >> >>>>> <gu...@python.org> > >> >> >> >> >> >>>>> wrote: > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> What I see in the strace: > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> ... load libpython3.4m.so.1.0 > >> >> >> >> >> >>>>>> ... load libm > >> >> >> >> >> >>>>>> ... open /dev/__properties__ and do something to it > >> >> >> >> >> >>>>>> (what?) > >> >> >> >> >> >>>>>> ... get current time > >> >> >> >> >> >>>>>> ... allocate memory > >> >> >> >> >> >>>>>> ... getuid > >> >> >> >> >> >>>>>> ... segfault > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> That's not a lot to go on, but it doesn't look as if > >> >> >> >> >> >>>>>> it > >> >> >> >> >> >>>>>> has > >> >> >> >> >> >>>>>> started to > >> >> >> >> >> >>>>>> load modules yet. > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> Does /dev/__properties__ ring a bell? Not to me. > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > https://android.googlesource.com/platform/system/core/+/tools_r22/init/property_service.c > >> >> >> >> >> >>>>> is the code that works with that file. > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> This explains it a bit (slides 24-29). Looks like > >> >> >> >> >> >>>>> something > >> >> >> >> >> >>>>> to > >> >> >> >> >> >>>>> do > >> >> >> >> >> >>>>> with > >> >> >> >> >> >>>>> interprocess communication. Likely has nothing to do > >> >> >> >> >> >>>>> with > >> >> >> >> >> >>>>> Python > >> >> >> >> >> >>>>> itself. > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> Maybe this would be useful? > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> That stack trace would be really helpful. > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> On Wed, Jan 28, 2015 at 8:34 AM, Cyd Haselton > >> >> >> >> >> >>>>>> <chasel...@gmail.com> > >> >> >> >> >> >>>>>> wrote: > >> >> >> >> >> >>>>>>> > >> >> >> >> >> >>>>>>> > >> >> >> >> >> >>>>>>> Apologies...I'm not sure what a stack track is, > but I > >> >> >> >> >> >>>>>>> do > >> >> >> >> >> >>>>>>> have > >> >> >> >> >> >>>>>>> the > >> >> >> >> >> >>>>>>> strace. Nearest I can tell, it happens due to an > >> >> >> >> >> >>>>>>> open > >> >> >> >> >> >>>>>>> call, > >> >> >> >> >> >>>>>>> though I > >> >> >> >> >> >>>>>>> am probably wrong. > >> >> >> >> >> >>>>>>> Attaching the strace output to this email. I'm > going > >> >> >> >> >> >>>>>>> to > >> >> >> >> >> >>>>>>> head > >> >> >> >> >> >>>>>>> back to > >> >> >> >> >> >>>>>>> the documentation and to back out of some > >> >> >> >> >> >>>>>>> Android-related > >> >> >> >> >> >>>>>>> changes > >> >> >> >> >> >>>>>>> in > >> >> >> >> >> >>>>>>> _localemodule.c > >> >> >> >> >> >>>>>>> > >> >> >> >> >> >>>>>>> On Wed, Jan 28, 2015 at 9:43 AM, Guido van Rossum > >> >> >> >> >> >>>>>>> <gu...@python.org> > >> >> >> >> >> >>>>>>> wrote: > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> There could be a million differences relevant > >> >> >> >> >> >>>>>>>> (unicode, > >> >> >> >> >> >>>>>>>> ints, > >> >> >> >> >> >>>>>>>> ...). > >> >> >> >> >> >>>>>>>> Perhaps > >> >> >> >> >> >>>>>>>> the importlib bootstrap is failing. Perhaps the > >> >> >> >> >> >>>>>>>> dynamic > >> >> >> >> >> >>>>>>>> loading > >> >> >> >> >> >>>>>>>> code > >> >> >> >> >> >>>>>>>> changed. Did you get a stack track? (IIRC strace > >> >> >> >> >> >>>>>>>> shows > >> >> >> >> >> >>>>>>>> a > >> >> >> >> >> >>>>>>>> syscall > >> >> >> >> >> >>>>>>>> trace > >> >> >> >> >> >>>>>>>> -- > >> >> >> >> >> >>>>>>>> also useful, but doesn't tell you precisely how > >> >> >> >> >> >>>>>>>> it segfaulted.) > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> On Wed, Jan 28, 2015 at 6:43 AM, Cyd Haselton > >> >> >> >> >> >>>>>>>> <chasel...@gmail.com> > >> >> >> >> >> >>>>>>>> wrote: > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> All, > >> >> >> >> >> >>>>>>>>> I recently ditched my attempts to port Python > 2.7.8 > >> >> >> >> >> >>>>>>>>> to > >> >> >> >> >> >>>>>>>>> Android > >> >> >> >> >> >>>>>>>>> in > >> >> >> >> >> >>>>>>>>> favor of Python 3.4.2. Unfortunately, after > using > >> >> >> >> >> >>>>>>>>> the > >> >> >> >> >> >>>>>>>>> same > >> >> >> >> >> >>>>>>>>> configure > >> >> >> >> >> >>>>>>>>> options in the same environment, and modifying > the > >> >> >> >> >> >>>>>>>>> setup.py > >> >> >> >> >> >>>>>>>>> as > >> >> >> >> >> >>>>>>>>> needed, > >> >> >> >> >> >>>>>>>>> the newly built binary throws a segfault when the > >> >> >> >> >> >>>>>>>>> generate-posix-vars > >> >> >> >> >> >>>>>>>>> portion of the build is reached...and when it is > >> >> >> >> >> >>>>>>>>> run > >> >> >> >> >> >>>>>>>>> as > >> >> >> >> >> >>>>>>>>> well > >> >> >> >> >> >>>>>>>>> (i.e. > >> >> >> >> >> >>>>>>>>> ./python --help, ./python -E -S -m sysconfig, or > >> >> >> >> >> >>>>>>>>> similar) > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> I took a strace of ./python, however I'm a bit > lost > >> >> >> >> >> >>>>>>>>> when > >> >> >> >> >> >>>>>>>>> reviewing > >> >> >> >> >> >>>>>>>>> it. > >> >> >> >> >> >>>>>>>>> Any ideas as to what may be going on...i.e. why > >> >> >> >> >> >>>>>>>>> Python > >> >> >> >> >> >>>>>>>>> 2.7 > >> >> >> >> >> >>>>>>>>> works but > >> >> >> >> >> >>>>>>>>> 3.x throws a segfault? > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> Thanks in advance, > >> >> >> >> >> >>>>>>>>> Cyd > >> >> >> >> >> >>>>>>>>> ________________________________ > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> Python-Dev mailing list > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> Python-Dev@python.org > >> >> >> >> >> >>>>>>>>> > https://mail.python.org/mailman/listinfo/python-dev > >> >> >> >> >> >>>>>>>>> Unsubscribe: > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > >> >> >> >> >> >>>>>>>>> > https://mail.python.org/mailman/options/python-dev/guido%40python.org > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> > >> >> >> >> >> >>>>>>>> -- > >> >> >> >> >> >>>>>>>> --Guido van Rossum (python.org/~guido) > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> -- > >> >> >> >> >> >>>>>> --Guido van Rossum (python.org/~guido) > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> ________________________________ > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> Python-Dev mailing list > >> >> >> >> >> >>>>>> Python-Dev@python.org > >> >> >> >> >> >>>>>> https://mail.python.org/mailman/listinfo/python-dev > >> >> >> >> >> >>>>>> Unsubscribe: > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > >> >> >> >> >> >>>>>> > https://mail.python.org/mailman/options/python-dev/rymg19%40gmail.com > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> > >> >> >> >> >> >>>>> -- > >> >> >> >> >> >>>>> Ryan > >> >> >> >> >> >>>>> If anybody ever asks me why I prefer C++ to C, my > >> >> >> >> >> >>>>> answer > >> >> >> >> >> >>>>> will > >> >> >> >> >> >>>>> be > >> >> >> >> >> >>>>> simple: > >> >> >> >> >> >>>>> "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I > >> >> >> >> >> >>>>> don't > >> >> >> >> >> >>>>> think > >> >> >> >> >> >>>>> that was > >> >> >> >> >> >>>>> nul-terminated." > >> >> >> >> >> >>>>> Personal reality distortion fields are immune to > >> >> >> >> >> >>>>> contradictory > >> >> >> >> >> >>>>> evidence. > >> >> >> >> >> >>>>> - > >> >> >> >> >> >>>>> srean > >> >> >> >> >> >>>>> Check out my website: http://kirbyfan64.github.io/ > >> >> >> >> >> >>> > >> >> >> >> >> >>> > >> >> >> >> >> >>> -- > >> >> >> >> >> >>> Sent from my Android phone with K-9 Mail. Please excuse > my > >> >> >> >> >> >>> brevity. > >> >> >> >> >> >>> Check out my website: http://kirbyfan64.github.io/ > >> >> >> >> > > >> >> >> >> > > >> >> >> >> > > >> >> >> >> > > >> >> >> >> > -- > >> >> >> >> > Ryan > >> >> >> >> > If anybody ever asks me why I prefer C++ to C, my answer will > >> >> >> >> > be > >> >> >> >> > simple: > >> >> >> >> > "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't > think > >> >> >> >> > that > >> >> >> >> > was > >> >> >> >> > nul-terminated." > >> >> >> >> > Personal reality distortion fields are immune to > contradictory > >> >> >> >> > evidence. > >> >> >> >> > - > >> >> >> >> > srean > >> >> >> >> > Check out my website: http://kirbyfan64.github.io/ > >> >> >> > > >> >> >> > > >> >> >> > > >> >> >> > > >> >> >> > -- > >> >> >> > Ryan > >> >> >> > If anybody ever asks me why I prefer C++ to C, my answer will be > >> >> >> > simple: > >> >> >> > "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think > >> >> >> > that > >> >> >> > was > >> >> >> > nul-terminated." > >> >> >> > Personal reality distortion fields are immune to contradictory > >> >> >> > evidence. > >> >> >> > - > >> >> >> > srean > >> >> >> > Check out my website: http://kirbyfan64.github.io/ > >> >> > > >> >> > > >> >> > > >> >> > > >> >> > -- > >> >> > Ryan > >> >> > If anybody ever asks me why I prefer C++ to C, my answer will be > >> >> > simple: > >> >> > "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think > that > >> >> > was > >> >> > nul-terminated." > >> >> > Personal reality distortion fields are immune to contradictory > >> >> > evidence. > >> >> > - > >> >> > srean > >> >> > Check out my website: http://kirbyfan64.github.io/ > >> > > >> > > >> > > >> > > >> > -- > >> > Ryan > >> > If anybody ever asks me why I prefer C++ to C, my answer will be > simple: > >> > "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think that > was > >> > nul-terminated." > >> > Personal reality distortion fields are immune to contradictory > evidence. > >> > - > >> > srean > >> > Check out my website: http://kirbyfan64.github.io/ > > > > > > > > > > -- > > Ryan > > If anybody ever asks me why I prefer C++ to C, my answer will be simple: > > "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think that was > > nul-terminated." > > Personal reality distortion fields are immune to contradictory evidence. > - > > srean > > Check out my website: http://kirbyfan64.github.io/ > -- Ryan If anybody ever asks me why I prefer C++ to C, my answer will be simple: "It's becauseslejfp23(@#Q*(E*EIdc-SEGFAULT. Wait, I don't think that was nul-terminated." Personal reality distortion fields are immune to contradictory evidence. - srean Check out my website: http://kirbyfan64.github.io/
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