failed to compile the rocket chip generator following the repo README instruction

[Jerry Ho]

There is some ambiguity in the repo's README file:

Also, in the “How should I use the Rocket chip generator?” section of the SAME README. it goes this :

As a result, I just executed the following instructions:

1):clone the wholle repo first

git clone https://github.com/ucb-bar/rocket-chip.git

cd rocket-chip

#export ROCKETCHIP='pwd' #I didn't execute this LOC

git submodule update --init  

2) clone the toolchain repo and make it

git clone https://github.com/freechipsproject/rocket-tools

cd rocket-tools

git submodule update --init --recursive

export RISCV=/path/to/install/riscv/toolchain

export MAKEFLAGS="$MAKEFLAGS -j4" # 4cores in the VMware ubuntu

./build.sh

#./build-rv32ima.sh (if you are using RV32)  #I didn't execute this LOC, I have no idea #what it mean by "if you are using RV32". if I am using RV64, then this LOC wont be #needed?

after I type “./build.sh", it takes while and prints lots of warnings, but finally it completed.

3)build the emulator

cd emulator

make  

it took 10mins or so, and I thought everything wokred just fun, but it goes this :

frankly speaking, I felt a little depressed about this.Is this because that I didn't execute the "./build-rv32ima.sh" step? I felt like there is variance among the same README

[Jerry Ho]

the terminal has the following info:

" /usr/bin/env: ‘python’: No such file or directory  "
did this say i need to install python first? I have python 3.6 installed,

[Bastian Koppelmann]

Hi,

On Fri, Sep 04, 2020 at 12:55:56AM -0700, Jerry Ho wrote:
> it took 10mins or so, and I thought everything wokred just fun, but it goes
> this :

> Snipaste_2020-09-04_15-52-51.png

Just glancing at the error, it says it cannot find python. So you either don't
have python installed or the wrong version (python2 vs python3).

Cheers,
Bastian

[FangFei Yang]

make sure your  python is accessible through command `python`.