The first thing I would check would be the compilation options when targeting the Pi: did you put -march=armv6, -mfpu=vfpv2 (-mfloat-abi=hard sounds like the default on your toolchain) or are they already your toolchain default? Most cross toolchains default to ARMv7, VFPv3.
If the compilation options are correct, then could you provide more details: what is the sigill and where is it. GDB should be able to tell you those things. Cheers, Rodolph. On 9 January 2015 at 18:26, Milan Pandurov <[email protected]> wrote: > That x64 build was just an reference that it works on host pc. It has > nothing to do with cross compiling. > > On Friday, January 9, 2015 at 7:12:14 PM UTC+1, Rodolph Perfetta wrote: >> >> I may be missing something but in your example you are using x64 libs in >> your cross compilation, how could this work? >> >> Rodolph. >> >> On 9 January 2015 at 17:56, Milan Pandurov <[email protected]> wrote: >> >>> That's pretty sad. I noticed that there are not many threads concerning >>> raspberry pi and v8. But there are also some people who managed to make it >>> work, so i guess that in some point in time there was a working git commit >>> + version of raspberry or some platform specific hack that worked. >>> Also if you suggest that raspberry pi isn't "supported" than looking for >>> an alternative is a better solution than hacking this to work? >>> >>> >>> On Friday, January 9, 2015 at 6:30:50 PM UTC+1, Flying Jester wrote: >>>> >>>> It might be that the old ISA the rPi uses is just too old to run V8. >>>> >>>> Generally, the devs only care about the devices that can also run >>>> Android. >>>> >>>> >>>> On Friday, January 9, 2015 at 5:40:30 AM UTC-9, Milan Pandurov wrote: >>>>> >>>>> I am having a problem with cross compiling google v8 libraries for >>>>> raspberry pi, and constantly getting "Illegal instruction" error when >>>>> compiling official sample from site. These are the steps i followed: >>>>> >>>>> 1. Downloaded cross compile https://github.com/raspberrypi/tools/ >>>>> 2. Cloned v8 git https://chromium.googlesource.com/v8/v8.git >>>>> 3. Exported CXX LINK point to arm-linux-gnueabihf-g++ from cross >>>>> compile tools. >>>>> 4. run make arm.release armv7=false hardfp=on snapshot=off >>>>> armfpu=vfp armfloatabi=hard -j5 >>>>> 5. Copied generated executable shell and d8 from out/arm.release >>>>> directory to pi (Raspbian kernel version 3.6.11) and it WORKS. These >>>>> steps >>>>> prove that cross compilation toolchain is functional. >>>>> >>>>> Problem occurs when trying to run other cross-compiled software that >>>>> is linked to v8 libraries. For example sample code from >>>>> https://developers.google.com/v8/get_started#intro. Code is >>>>> cross-compiled with this command (same as example, just changed compiler) >>>>> >>>>> arm-linux-gnueabihf-g++ -I. hello_world.cc -o hello_world >>>>> -Wl,--start-group >>>>> out/x64.release/obj.target/{tools/gyp/libv8_{base,libbase,snapshot,libplatform},third_party/icu/libicu{uc,i18n,data}}.a >>>>> -Wl,--end-group -lrt -pthread >>>>> >>>>> >>>>> When i copy that code to pi and run it i get SIGILL (Illegal >>>>> instruction). >>>>> >>>>> Note: cross compiled software that doesn't use v8 libraries works >>>>> fine. Also x64 v8 libraries on host computer work fine. >>>>> >>>>> On newer kernel versions shell and d8 were also throwing SIGILL but >>>>> than i switched to older version 3.6.11 (problems with newer kernel >>>>> https://groups.google.com/forum/#!topic/v8-users/IPT9EeYK9bg) and >>>>> they started working, but compiled sample code is still showed same >>>>> issues. >>>>> >>>>> Did anyone have similar experience? Any suggestion on how to overcome >>>>> this problem? >>>>> >>>> -- >>> -- >>> v8-users mailing list >>> [email protected] >>> http://groups.google.com/group/v8-users >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "v8-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- > -- > v8-users mailing list > [email protected] > http://groups.google.com/group/v8-users > --- > You received this message because you are subscribed to the Google Groups > "v8-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- v8-users mailing list [email protected] http://groups.google.com/group/v8-users --- You received this message because you are subscribed to the Google Groups "v8-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
