QEMU RISC-V

[Peter Samir]

hello, 

I built RISC-V toolchain and QEMU as follows:

# Install prerequisites: https://github.com/riscv-collab/riscv-gnu-toolchain#prerequisites

# Install additional prerequisites: https://github.com/riscv-collab/riscv-gnu-toolchain/issues/1251

git clone https://github.com/riscv-collab/riscv-gnu-toolchain

cd riscv-gnu-toolchain

./configure --prefix=/home/RISCV-installed-Tools --with-arch=rv32i_zicsr --with-abi=ilp32

make

make build-qemu

QEMU Version:  

qemu-riscv32 version 7.1.0 (v7.1.0)

Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers

i debug as follows:

riscv32-unknown-elf-gcc -g test.S -o test

qemu-riscv32 -g 3333 test

// in another terminal

riscv32-unknown-elf-gdb test -ex "target remote :3333"

but Qemu reports this error when I use CSR instructions:

Program received signal SIGILL, Illegal instruction. main () at main.S:2 2 main: csrw mepc, t0

how to resolve this error ?