Ok I think I found a solution. use -integrated-as with clang
clang is using the system assembler(usr/bin/as) instead of the llvm assembler(llvm-as) It's still not working but at least assembler command failed error is gone On Thu, Apr 30, 2020 at 9:36 PM Hesham Almatary <heshamelmat...@gmail.com> wrote: > > > On Thu, 30 Apr 2020 at 15:56, suyash singh <suyashsingh...@gmail.com> > wrote: > >> after adding -v >> https://hastebin.com/epijunegix.coffeescript >> >> with sparc-unknown-elf >> https://hastebin.com/ijohidofus.coffeescript >> >> (target getting an extra unknown for some reason) >> >> riscv64-unknown-elf >> https://hastebin.com/jirusidoti.sql >> different error: unknown register name (maybe because erc32 bsp with >> riscv) >> > Yes, you need to run that on an RTEMS riscv BSP and not sparc sources > > >> >> On Thu, Apr 30, 2020 at 8:08 PM Hesham Almatary <heshamelmat...@gmail.com> >> wrote: >> >>> >>> >>> On Thu, 30 Apr 2020 at 15:21, suyash singh <suyashsingh...@gmail.com> >>> wrote: >>> >>>> I think it doesn't support sparc backend although it does not give >>>> unknown target error. >>>> >>>> I compiled this c program with >>>> export PATH=$HOME/quick-start/rtems/5/bin:"$PATH" >>>> clang -target sparc-unknown-rtems5 test1.c >>>> >>> Can you add -v to that command and post the output? Also try with >>> sparc-unknown-elf. Last thing to try is to do the same for >>> riscv64-unknown-elf >>> >>>> >>>> *test1.c* >>>> int main(int argc, char **argv) { >>>> int k = 0x7fffffff; >>>> k += argc; >>>> return 0; >>>> } >>>> >>>> same error >>>> /usr/bin/as: unrecognized option '-Av8' >>>> clang-11: error: assembler command failed with exit code 1 >>>> >>>> If i write >>>> clang -target hello test1.c >>>> error: unknown target triple 'hello', please use -triple or -arch >>>> >>>> So I guess it is detecting sparc but not working with it >>>> >>>> On Thu, Apr 30, 2020 at 7:07 PM Hesham Almatary < >>>> heshamelmat...@gmail.com> wrote: >>>> >>>>> >>>>> >>>>> On Thu, 30 Apr 2020 at 14:18, suyash singh <suyashsingh...@gmail.com> >>>>> wrote: >>>>> >>>>>> >>>>>> I am using ubuntu 18.04 terminal >>>>>> >>>>>> Here's the python script I wrote to find all include files and run >>>>>> clang -fsanitize >>>>>> >>>>>> # run with python3 in terminal >>>>>> >>>>>> import subprocess >>>>>> import os >>>>>> >>>>>> relativedir="../bsps/sparc/erc32/btimer" >>>>>> directory=os.path.join(os.getcwd(),"../") >>>>>> file="btimer.c" >>>>>> root_dir="ubsan" >>>>>> >>>>>> arr=['clang','-target','sparc','- >>>>>> >>>>> target needs to be sparc-unknown-rtems5 to pick up the correct tools. >>>>> Does your clang support sparc backend? Can you try to compile and link >>>>> some >>>>> simple C program with it? >>>>> >>>>> >>>>>> fsanitize=undefined',"-I../../../../../../rtems/5/sparc-rtems5/erc32/lib/include","-I../../../../../../rtems/5/sparc-rtems5/include/"] >>>>>> >>>>>> for path, subdirs, files in os.walk(directory): >>>>>> for subdir in subdirs: >>>>>> if(subdir=="include"): >>>>>> includepath=os.path.join(path,subdir) >>>>>> idx=includepath.find("..") >>>>>> arr.append("-I../../../../"+includepath[idx+3:]) >>>>>> arr.append(file) >>>>>> subprocess.run(arr,cwd=relativedir, stdout=subprocess.PIPE) >>>>>> #result=subprocess.run(['./a.out'],cwd=relativedir, >>>>>> stdout=subprocess.PIPE) >>>>>> >>>>>> On Thu, Apr 30, 2020 at 6:44 PM Hesham Almatary < >>>>>> heshamelmat...@gmail.com> wrote: >>>>>> >>>>>>> >>>>>>> >>>>>>> On Thu, 30 Apr 2020 at 13:51, Joel Sherrill <j...@rtems.org> wrote: >>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> On Thu, Apr 30, 2020 at 7:34 AM suyash singh < >>>>>>>> suyashsingh...@gmail.com> wrote: >>>>>>>> >>>>>>>>> Hello, >>>>>>>>> I was running clang UBSan on >>>>>>>>> bsps/sparc/erc32/btimer/btimer.c >>>>>>>>> >>>>>>>>> and got error >>>>>>>>> >>>>>>>>> /usr/bin/as: unrecognized option '-Av8' >>>>>>>>> clang-11: error: assembler command failed with exit code 1 >>>>>>>>> >>>>>>>>> I am not sure but is it because clang is using wrong assembler? >>>>>>>>> >>>>>>>> >>>>>>>> I haven't seen anyone run into this in a long time. :) >>>>>>>> >>>>>>>> In this case, it is likely one of two things: >>>>>>>> >>>>>>>> + Look at your $PATH. Make sure the RTEMS tools are first. >>>>>>>> >>>>>>>> + But in your case, I expect that it is because the clang didn't >>>>>>>> know (somehow) to put the target name in front of the as. >>>>>>>> Did you invoke it for sparc-rtems5? If so, then there is a >>>>>>>> path through clang where it isn't looking at the target name. >>>>>>>> >>>>>>> That’s likely to be the problem. I expect Suyash isn’t cross >>>>>>> compiling with clang. >>>>>>> >>>>>>> >>>>>>>> I also double checked the as manual to ensure -Av8 was in >>>>>>>> fact a sparc option. >>>>>>>> >>>>>>>> --joel >>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> _______________________________________________ >>>>>>>>> devel mailing list >>>>>>>>> devel@rtems.org >>>>>>>>> http://lists.rtems.org/mailman/listinfo/devel >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> devel mailing list >>>>>>>> devel@rtems.org >>>>>>>> http://lists.rtems.org/mailman/listinfo/devel >>>>>>> >>>>>>> -- >>>>>>> Hesham >>>>>>> _______________________________________________ >>>>>>> devel mailing list >>>>>>> devel@rtems.org >>>>>>> http://lists.rtems.org/mailman/listinfo/devel >>>>>> >>>>>> -- >>>>> Hesham >>>>> >>>> -- >>> Hesham >>> >> -- > Hesham >
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