Unable to use the cmake_configure.riscv.gcc.sh to build a program, output "is not able to compile a simple test program."

[ludblom]

The toolchain I am using is "pulp-gnu-toolchain", link it to path in the cmake_configure file and have all the dependencies I need except ModelSim, but will not generate a ModelSim test file so it should not be needed. I want to use a ZedBoard FPGA instead I have. In the fpga folder I read that I should read the README in the "pulpino/sw" folder. Doing that I am guided to make a directory, copy the cmake_configure file, modify it to my needs and run it. However, this is the output I get from it.

Note: The OS I am using is Ubuntu MATE 18.04

-- The C compiler identification is GNU 7.1.1
-- The CXX compiler identification is GNU 7.1.1
-- The ASM compiler identification is GNU
-- Found assembler: /opt/pulp-riscv/bin/riscv32-unknown-elf-gcc
System is unknown to cmake, create:
Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake
Your CMakeCache.txt file was copied to CopyOfCMakeCache.txt. Please send that file to cmake@www.cmake.org.
-- Check for working C compiler: /opt/pulp-riscv/bin//riscv32-unknown-elf-gcc
System is unknown to cmake, create:
Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake
-- Check for working C compiler: /opt/pulp-riscv/bin//riscv32-unknown-elf-gcc -- broken
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
  The C compiler

    "/opt/pulp-riscv/bin//riscv32-unknown-elf-gcc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/ludblom/Desktop/Kandidatarbete/pulpino/sw/build/CMakeFiles/CMakeTmp

    Run Build Command:"/usr/bin/gmake" "cmTC_b8c5f/fast"
    /usr/bin/gmake -f CMakeFiles/cmTC_b8c5f.dir/build.make CMakeFiles/cmTC_b8c5f.dir/build
    gmake[1]: Entering directory '/home/ludblom/Desktop/Kandidatarbete/pulpino/sw/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_b8c5f.dir/testCCompiler.c.o
    /opt/pulp-riscv/bin//riscv32-unknown-elf-gcc   -O3 -m32 -g    -o CMakeFiles/cmTC_b8c5f.dir/testCCompiler.c.o   -c /home/ludblom/Desktop/Kandidatarbete/pulpino/sw/build/CMakeFiles/CMakeTmp/testCCompiler.c
    riscv32-unknown-elf-gcc: error: unrecognized command line option '-m32'; did you mean '-mL2='?
    CMakeFiles/cmTC_b8c5f.dir/build.make:65: recipe for target 'CMakeFiles/cmTC_b8c5f.dir/testCCompiler.c.o' failed
    gmake[1]: *** [CMakeFiles/cmTC_b8c5f.dir/testCCompiler.c.o] Error 1
    gmake[1]: Leaving directory '/home/ludblom/Desktop/Kandidatarbete/pulpino/sw/build/CMakeFiles/CMakeTmp'
    Makefile:126: recipe for target 'cmTC_b8c5f/fast' failed
    gmake: *** [cmTC_b8c5f/fast] Error 2

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:20 (enable_language)

-- Configuring incomplete, errors occurred!

[Khazus]

Hi, I have the same issue. Have you fixed it?

[ludblom]

Yes I have, it seems like it is something wrong with the flags, more specifically the "-m32" flag. To remove it we used this script

#!/bin/bash

# Find and replace all occurrances of '-m32' and fix rest of line.

for file in $(find); do
    if [[ -f $file ]]; then
        [[ $(cat $file | grep m32) ]]
        if [[ $? == 0 ]]; then
            echo writing...
            echo $file
           sed 's/\-m32//g' $file > tmp && mv tmp $file
       fi
    fi
done

You also need to fix your linker file wich was done like this

#!/bin/bash

riscv32-unknown-elf-ld --verbose | head -n -1 | tail -n +7 | sed '168 a \ \ _fbss = .;' | sed '169 a \ \ . = .;' > /home/path/to/pulpino/sw/build/CMakeFiles/CMakeTmp/riscv.ld

You also have to change the TARGET_C_FLAGS to "-O3 -march=rv32g -g" instead of what they are now. Good luck!

Edit: The scripts are coded by @blaklinten

[Khazus]

Thank you for your response.

I tried to execute both scripts and i modified TARGET_C_FLAGS. But i have a similar result:

-- The C compiler identification is GNU 7.1.1
-- The CXX compiler identification is GNU 7.1.1
-- The ASM compiler identification is GNU
-- Found assembler: /opt/riscv/bin/riscv32-unknown-elf-gcc
System is unknown to cmake, create:
Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake
-- Check for working C compiler: /opt/riscv/bin/riscv32-unknown-elf-gcc
System is unknown to cmake, create:
Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake
-- Check for working C compiler: /opt/riscv/bin/riscv32-unknown-elf-gcc -- broken
CMake Error at /usr/share/cmake-3.10/Modules/CMakeTestCCompiler.cmake:52 (message):
  The C compiler

    "/opt/riscv/bin/riscv32-unknown-elf-gcc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/arcenegui/pulpinoexperiment/pulpino/sw/build/CMakeFiles/CMakeTmp

    Run Build Command:"/usr/bin/gmake" "cmTC_d107c/fast"
    /usr/bin/gmake -f CMakeFiles/cmTC_d107c.dir/build.make CMakeFiles/cmTC_d107c.dir/build
    gmake[1]: Entering directory '/home/arcenegui/pulpinoexperiment/pulpino/sw/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_d107c.dir/testCCompiler.c.o
    /opt/riscv/bin/riscv32-unknown-elf-gcc   -O3 -march=rv32g -g    -o CMakeFiles/cmTC_d107c.dir/testCCompiler.c.o   -c /home/arcenegui/pulpinoexperiment/pulpino/sw/build/CMakeFiles/CMakeTmp/testCCompiler.c
    Linking C executable cmTC_d107c
    /usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_d107c.dir/link.txt --verbose=1
    /opt/riscv/bin/riscv32-unknown-elf-gcc -O3 -march=rv32g -g     CMakeFiles/cmTC_d107c.dir/testCCompiler.c.o  -o cmTC_d107c 
    /opt/riscv/lib/gcc/riscv32-unknown-elf/7.1.1/../../../../riscv32-unknown-elf/bin/ld: cannot open linker script file riscv.ld: No such file or directory
    collect2: error: ld returned 1 exit status
    CMakeFiles/cmTC_d107c.dir/build.make:97: recipe for target 'cmTC_d107c' failed
    gmake[1]: *** [cmTC_d107c] Error 1
    gmake[1]: Leaving directory '/home/arcenegui/pulpinoexperiment/pulpino/sw/build/CMakeFiles/CMakeTmp'
    Makefile:126: recipe for target 'cmTC_d107c/fast' failed
    gmake: *** [cmTC_d107c/fast] Error 2

Then, which version of riscv-toolchain are you using? ri5cy-gnu-toolchain or pulp-riscv-gnu-toolchain?

Thank you and regards.

[blaklinten]

I am using the pulp-riscv-gnu-toolchain.

The line containing 'cannot open linker script file riscv.ld: No such file or directory' suggest that the linker script is not to be found. As suggested by @mbolivar in https://github.com/pulp-platform/pulpino/issues/240#issuecomment-443011984 the linker can however provide said script and that is what one of my script does. However; when compiling it would seems as the process entails several test runs and after each test the linker script is deleted.

I solved this problem by running the 'fix-linker'-script several times as the following: 1) Run cmake_configure.riscv.gcc.sh 2) When it fails with the above error --> run 'fix-linker'-script 3) Run cmake_configure.riscv.gcc.sh again 4) repeat 2) if error occurs. You might need to do this several (~5) times, at least in my experience. The progress can be seen since the 'cmake_configure.riscv.gcc.sh'-script will fail on different steps, e.g. 'Linking C executable cmTC_d107c'.

[Khazus]

it's work! thank you!

[sunil3690]

hello, Thank you. Will you please share the fix-linker script.? Thanks PVJ

[caifuxi]

I ran into the same issue before. Then I changed to https://github.com/riscveval/ri5cy-gnu-toolchain and problem solved

[sunil3690]

Hi.. It's working I configure cmake_configure.riscv.gcc.sh inside the build folder using ri5cy_gnu_toolchain. Thanks for your help

On Thu, Oct 24, 2019, 5:49 AM caifuxi notifications@github.com wrote:

I ran into the same issue before. Then I changed to https://github.com/riscveval/ri5cy-gnu-toolchain http://url and problem solved

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/pulp-platform/pulpino/issues/281?email_source=notifications&email_token=ANAORJKES7CLO6E7ODKCDJLQQDS2PA5CNFSM4GZEEQJKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOECDI2HI#issuecomment-545688861, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANAORJP74PN5BDWNUXNX7X3QQDS2PANCNFSM4GZEEQJA .

[sunil3690]

Hello

I have facing problem with all application including pulpino platform are execute using modelsim? During run time we need to add all wave to design?

I run application as testALU using modelsim. But how to figure out the c code of testALU and simulation waveform please give the solution. Thanks

On Thu, Oct 24, 2019, 9:06 AM Sunil Rathod sunilrathod3690@gmail.com wrote:

Hi.. It's working I configure cmake_configure.riscv.gcc.sh inside the build folder using ri5cy_gnu_toolchain. Thanks for your help

On Thu, Oct 24, 2019, 5:49 AM caifuxi notifications@github.com wrote:

I ran into the same issue before. Then I changed to https://github.com/riscveval/ri5cy-gnu-toolchain http://url and problem solved

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/pulp-platform/pulpino/issues/281?email_source=notifications&email_token=ANAORJKES7CLO6E7ODKCDJLQQDS2PA5CNFSM4GZEEQJKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOECDI2HI#issuecomment-545688861, or unsubscribe https://github.com/notifications/unsubscribe-auth/ANAORJP74PN5BDWNUXNX7X3QQDS2PANCNFSM4GZEEQJA .

[baraujo3007]

Hello, I'm facing the same issue, but neither of the response solve it.

That's my cmake_configure.riscv.gcc.sh file

`#!/bin/bash

export PATH=/opt/riscv/bin/riscv32-unknown-elf-gcc/:${PATH}

OBJDUMP=which riscv32-unknown-elf-objdump OBJCOPY=which riscv32-unknown-elf-objcopy

COMPILER=/opt/riscv/bin/riscv32-unknown-elf-gcc RANLIB=which riscv32-unknown-elf-ranlib

VSIM=/home/Bruna/intelFPGA_pro/19.4/modelsim_ase/bin/vsim

TARGET_C_FLAGS="-O3 -march=rv32g -g"

TARGET_C_FLAGS="-O2 -g -falign-functions=16 -funroll-all-loops"

if you want to have compressed instructions, set this to 1

RVC=0

if you are using zero-riscy, set this to 1, otherwise it uses RISCY

USE_ZERO_RISCY=0

set this to 1 if you are using the Floating Point extensions for riscy only

RISCY_RV32F=0

zeroriscy with the multiplier

ZERO_RV32M=1

zeroriscy with only 16 registers

ZERO_RV32E=0

riscy with PULPextensions, it is assumed you use the ETH GCC Compiler

GCC_MARCH="IMXpulpv2"

compile arduino lib

ARDUINO_LIB=1

PULP_GIT_DIRECTORY=../../ SIM_DIRECTORY="$PULP_GIT_DIRECTORY/vsim"

insert here your post-layout netlist if you are using IMPERIO

PL_NETLIST=""

cmake "$PULP_GIT_DIRECTORY"/sw/ \ -DPULP_MODELSIM_DIRECTORY="$SIM_DIRECTORY" \ -DCMAKE_C_COMPILER="$COMPILER" \ -DVSIM="$VSIM" \ -DRVC="$RVC" \ -DRISCY_RV32F="$RISCY_RV32F" \ -DUSE_ZERO_RISCY="$USE_ZERO_RISCY" \ -DZERO_RV32M="$ZERO_RV32M" \ -DZERO_RV32E="$ZERO_RV32E" \ -DGCC_MARCH="$GCC_MARCH" \ -DARDUINO_LIB="$ARDUINO_LIB" \ -DPL_NETLIST="$PL_NETLIST" \ -DCMAKE_C_FLAGS="$TARGET_C_FLAGS" \ -DCMAKE_OBJCOPY="$OBJCOPY" \ -DCMAKE_OBJDUMP="$OBJDUMP"

Add -G "Ninja" to the cmake call above to use ninja instead of make`

And what I get when I try to run it:

`riscv32-unknown-elf-gcc: fatal error: no input files compilation terminated. -- The C compiler identification is unknown -- The CXX compiler identification is GNU 7.5.0 -- The ASM compiler identification is GNU -- Found assembler: /usr/bin/c++ System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake CMake Error at CMakeLists.txt:20 (enable_language): No CMAKE_C_COMPILER could be found.

Tell CMake where to find the compiler by setting either the environment variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to the compiler, or to the compiler name if it is in the PATH.

-- Check for working CXX compiler: /usr/bin/c++ System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake System is unknown to cmake, create: Platform/Linux-CXX to use this system, please send your config file to cmake@www.cmake.org so it can be added to cmake -- Detecting CXX compile features - done -- Configuring incomplete, errors occurred! See also "/home/Bruna/pulpino/sw/build/CMakeFiles/CMakeOutput.log". See also "/home/Bruna/pulpino/sw/build/CMakeFiles/CMakeError.log".`

What do I have to do to solve it? Thanks

[Unlimitosu]

@ludblom I ran the shell script that removes -m32 flags then I fixed TARGET_C_FLAGS into -O3 -march=rv32g -g.

After that, I ran cmake_configure.riscv.gcc.sh and I encountered the same errors: The C compiler "/opt/risqv/bin/riscv32-unknown-elf-gcc" is not able to compile a simple test program.

What is the linker script you are saying? I cannot find pulpino/sw/build/CMakeFiles/CMakeTmp/riscv.ld. I didn't success to run any cmake_* script.

Can you help me about this?

[ludblom]

@Unlimitosu Have you tried @blaklinten 's solution?

[Unlimitosu]

@ludblom I don't know what is fix-linker script... and I think it's because I used WSL2. I tried again in pure Ubuntu 20.04, then I didn't see that error, but there's something error with path. When I run make vcompile, error said .csh file(maybe) did not exist. and I didn't solved it yet. Because it is early morning here, I will reply here in this weekend.

Thanks!

[shane1604]

Hi Im facing thiss error. Anyone has solution for this pls help :<