RiscV rv-sys rv8 potential bug ( TRAP :breakpoint pc:0x112c badaddr:0x112c)

[apoorvagnihotri]

I am working on instruction profile (frequency of instruction) of typical programs and required your program to simulate and make histograms of dynamic instructions that are run on a processor using RiscV executable file. I successfully installed rv8 and riscv-tools but was not able to run a typical hello world program and got the following error,

TRAP :breakpoint pc:0x112c badaddr:0x112c

when I tried running using the command, rv-sys --instruction-usage-histogram helloworld.
I tried to remove printf and scanf in the possibility of rv-sys not supporting system calls but got the same error. I also tried to include -static option to the cross-compiler but with no success.
I tried to get the total instruction count of helloworld using spike pk -s and was able to run the program and get the total dynamic instruction counts. (helloworld seems to be cross-compiled correctly).
I compiled using the tool, riscv64-unknown-elf-gcc

Contents of the file:

#include <stdio.h>

int main(void)
{
printf("Hello Riscv Word!");
return 0;
}

Details:
Ubuntu 16.04 LTS 64-bit
i7-6700 HQ
16 GB DDR4 RAM
UEFI System
GPT Partitioning
Asus ROG GL552VW-CN230T

PS.

I even tried to use the tool rv-sim --instruction-usage-histogram but was not able to get the required histograms. I got only the output specified in the program hello.c.
I tried to run the testing program provided bbl by using the tool rv-sys, but was not able to run it (Terminal gave no output and seemed to be stuck (not frozen)).
I tried on a virtual and a native host machine both, getting the same result.

​