Hi,
I am trying to compile a simple code which has global arrays. I have initialized all the global arrays to make sure the compiler does not generate the code to initialize them to 0. However, I am still getting these "memset" calls in the _start section of the assembly.

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Hello! I checked existing threads but did not find a solution for my problem. 
I've already installed simple runtime and executed expample "hello" successfully. 
While I was installing SDK, I had some problems. I just follow the steps in 
GitHub and run the "make build-pulp-sdk" and some errors just came out.


Environment:
CentOS-7
gcc 4.8.3
python 3.6.8

Following is some of the configuration in my ".bashrc". 
export PATH=$PATH:$HOME/mylib/v1.0.16-pulp-riscv-gcc-centos-7/:/tools/linux/mentor/modelsim/10.6a/modeltech/

I wrote this "source_pulp.sh" and source it once before I start building SDK.
PULP_HOME=$HOME/pulpissimo
export PULP_RISCV_GCC_TOOLCHAIN=$HOME/mylib/v1.0.16-pulp-riscv-gcc-centos-7
export VSIM_PATH=$PULP_HOME/sim
export CPLUS_INCLUDE_PATH=/usr/local/include/ImageMagick-6
source $PULP_HOME/pulp-runtime/configs/pulpissimo.sh
source $PULP_HOME/setup/vsim.sh
source $PULP_HOME/pulp-sdk/configs/pulpissimo.sh
source $PULP_HOME/pulp-sdk/configs/platform-rtl.sh


1. I've already installed configparser at /usr/local/lib/python3.6/site-packages.
   But "No module named configparser" shows up from time to time. Should I install 
   configparser with another method or just run several times to ignore the error?

2. I've installed ImageMagick at /usr/local/include. When I use ImageMagick-7 as
   the library, this error occurs.

      sdk:dpi-models:build: make build install
      make[2]: Entering directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models'
      make -C models build
      make[3]: Entering directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models/models'
      g++ camera/camera.cpp -o /users/student/mr109/cyyang20/pulpissimo/pulp-sdk/build/sdk/dpi-models/models/camera.so -I/usr/include/GraphicsMagick   -D__MAGICK__ -MMD -MP -O2 -g -fpic -std=c++11 -I/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/pkg/sdk/dev/install/ws/include -Werror -Wfatal-errors -DMAGICKCORE_QUANTUM_DEPTH=16 -DMAGICKCORE_HDRI_ENABLE=0 -lGraphicsMagick++ -lGraphicsMagick -O2 -g -shared -L/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/pkg/sdk/dev/install/ws/lib -Werror -Wfatal-errors
      camera/camera.cpp:82:3: error: 'PixelPacket' does not name a type
         PixelPacket *image_buffer;
         ^
      compilation terminated due to -Wfatal-errors.
      make[3]: *** [/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/build/sdk/dpi-models/models/camera.so] Error 1
      make[3]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models/models'
      make[2]: *** [build] Error 2
      make[2]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models'
      Reached EOF with exit status 2
      FATAL ERROR: the command 'build' has failed
      make[1]: *** [all] Error 255
      make[1]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk'
      make: *** [pulp-sdk] Error 2

   But after I choose ImageMagick-6 as the library, this error occurs.

      sdk:dpi-models:build: make build install
      make[2]: Entering directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models'
      make -C models build
      make[3]: Entering directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models/models'
      g++ camera/camera.cpp -o /users/student/mr109/cyyang20/pulpissimo/pulp-sdk/build/sdk/dpi-models/models/camera.so -I/usr/include/GraphicsMagick   -D__MAGICK__ -MMD -MP -O2 -g -fpic -std=c++11 -I/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/pkg/sdk/dev/install/ws/include -Werror -Wfatal-errors -DMAGICKCORE_QUANTUM_DEPTH=16 -DMAGICKCORE_HDRI_ENABLE=0 -lGraphicsMagick++ -lGraphicsMagick -O2 -g -shared -L/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/pkg/sdk/dev/install/ws/lib -Werror -Wfatal-errors
      In file included from /usr/include/GraphicsMagick/magick/render.h:14:0,
                     from /usr/include/GraphicsMagick/magick/draw.h:31,
                     from /usr/local/include/ImageMagick-6/magick/annotate.h:21,
                     from /usr/local/include/ImageMagick-6/magick/MagickCore.h:80,
                     from /usr/local/include/ImageMagick-6/Magick++/Include.h:45,
                     from /usr/local/include/ImageMagick-6/Magick++.h:10,
                     from camera/camera.cpp:24:
      /usr/include/GraphicsMagick/magick/type.h:87:21: error: 'MagickPassFail' does not name a type
      extern MagickExport MagickPassFail
                           ^
      compilation terminated due to -Wfatal-errors.
      make[3]: *** [/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/build/sdk/dpi-models/models/camera.so] Error 1
      make[3]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models/models'
      make[2]: *** [build] Error 2
      make[2]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk/platform/dpi_models'
      Reached EOF with exit status 2
      FATAL ERROR: the command 'build' has failed
      make[1]: *** [all] Error 255
      make[1]: Leaving directory `/users/student/mr109/cyyang20/pulpissimo/pulp-sdk'
      make: *** [pulp-sdk] Error 2

I would like to know whether I installed ImageMagick correctly. If there's 
anything needed to help me deal with these problems, please let me know! 
Thanks a lot!

Hi,

I would like to run small home-made algorithms of languages other than c on the HERO platform.
Is offloading to bigPULP only possible with OpenMP or are other APIs implemented?

Thanks.

Hi ,
I am trying  C to hex conversion for a simple (addition) program. My disassembly code is as follows:

Hello,

yesterday I had an error while executing the ./update-ips command.

Hello,

I am new to RISC-V and PULPissimo. So far, using the following Makefile, I have been able to generate C based test cases for verifying general C commands:

PULP_APP = test
PULP_APP_FC_SRCS = test.c
PULP_APP_HOST_SRCS = test.c

PULP_CFLAGS = -O3 -g
include $(PULP_SDK_HOME)/install/rules/pulp_rt.mk


When I am trying to add basic asm code as inline assembly in the C test, it provides error on those specific commands.

I added the following code in the test.c file:

asm( "mov r0, r0\n\t" 
     "mov r0, r0\n\t" 
     "mov r0, r0\n\t" 
     "mov r0, r0" );

I received the following errors:

test.c: Assembler messages:
test.c:15: Error: unrecognized opcode mov r0,r0'
test.c:16: Error: unrecognized opcodemov r0,r0'
test.c:17: Error: unrecognized opcode mov r0,r0'
test.c:18: Error: unrecognized opcodemov r0,r0'

Is there a simple way of adding inline assembly in C test cases, and verifying for example load and store instructions, or more instruction types? The compiler is able to run test.c file using the above Makefile method and I was hoping to keep that constant and work it around the inline assembly in a simple way.

root@tresa-Inspiron-5567:~/pulpino/sw/build1# make helloworld
[  0%] Built target bench
[  0%] Building C object CMakeFiles/crt0.dir/ref/crt0.riscv.S.o
/root/pulpino/sw/ref/crt0.riscv.S:17:3: error: expected identifier or '(' before '.' token
   .section .text
   ^
/root/pulpino/sw/ref/crt0.riscv.S:84:3: error: unknown type name 'addi'
   addi x10, x0, 0
   ^
/root/pulpino/sw/ref/crt0.riscv.S:84:17: error: expected identifier or '(' before numeric constant
   addi x10, x0, 0
                 ^
/root/pulpino/sw/ref/crt0.riscv.S:89:3: error: unknown type name 'mv'
   mv a0, s0
   ^
/root/pulpino/sw/ref/crt0.riscv.S:91:3: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'jal'
   jal  x1, exit
   ^
/root/pulpino/sw/ref/crt0.riscv.S:254:5: error: invalid preprocessing directive #These
   # These don't have to do anything since we use init_array/fini_array.
     ^
/root/pulpino/sw/ref/crt0.riscv.S:254:14: warning: missing terminating ' character
   # These don't have to do anything since we use init_array/fini_array.
              ^
/root/pulpino/sw/ref/crt0.riscv.S:265:3: error: expected identifier or '(' before '.' token
   .org 0x00
   ^
CMakeFiles/crt0.dir/build.make:81: recipe for target 'CMakeFiles/crt0.dir/ref/crt0.riscv.S.o' failed
make[3]: *** [CMakeFiles/crt0.dir/ref/crt0.riscv.S.o] Error 1
CMakeFiles/Makefile2:3980: recipe for target 'CMakeFiles/crt0.dir/all' failed
make[2]: *** [CMakeFiles/crt0.dir/all] Error 2
CMakeFiles/Makefile2:5086: recipe for target 'apps/helloworld/CMakeFiles/helloworld.dir/rule' failed
make[1]: *** [apps/helloworld/CMakeFiles/helloworld.dir/rule] Error 2
Makefile:720: recipe for target 'helloworld' failed
make: *** [helloworld] Error 2



Got this error while running helloworld.
Kindly look into this error and help me out.
Thanks in advance!

Hello everyone

The Pulpissimo page on GitHub says:

"At the moment the following boards are supported:

  Digilent Genesys2
  Xilinx ZCU104
  Xilinx ZCU102
  Digilent Nexys Video
  ZedBoard"

The question is: which one is better to start working with Pulpissimo? Is there any difference between them? Is there a "easier" board?

Thanks

I downloaded pulp-riscv-gnu-toolchain and did installation(PULP). When i try to compile a program using riscv32-unknown-elf-gcc, I get the following error

/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

Hello,

I'm very interested by the HERO platform on the ZC706 FPGA board. I tried to modify bigpulp by defining 2 clusters of 3 cores each. To do this, I changed the number of clusters and cores in the bigpulp/fe/rtl/includes/pulp_soc_defines.sv file and the hero_sdk/pulp_sdk/pulp_configs/configs/systems/hero-z-7045.json file.

To generate the bitstream, I followed the steps described in this link https://github.com/pulp-platform/bigpulp. And to generate the SDK, I followed the steps described in this link https://pulp-platform.org/hero/doc/software/.

However, I was not able to run the "hero-openmp-examples" programs. In the case of the mm-large program, matrix multiplication is correctly executed on ARM, but for the part to be executed on bigPulp it is frozen.

Did I modify the right files for the bigPULP part and the HERO-SDK part?
Otherwise do you have any idea what the problem is?



Thanks in advance.