RISC-V on Tejas

[Hrishikesh Nair]

Hi, 

I've been trying to set up RISC-V on Tejas 1.4.1 and have been facing difficulty with the spikeTrace.patch.

Has the patch been updated for this version of Tejas?

Thank you

[Shubhankar Singh]

Hi,

Please follow the following instructions:

1) Find the complete riscv-tools here: https://github.com/riscv/riscv-tools

Download and build all the tools.

2)
a) Download riscv-isa-sim from here: https://github.com/riscv/riscv-isa-sim/tree/d48f107dba6a96fb827cb47fdf290261feadeb35
b) Extract and rename the folder to riscv-isa-sim
c) Copy the patch spikeTrace.patch to the folder containing riscv-isa-sim
d) cd riscv-tools: Apply patch to riscv-isa-sim using: patch -p0 -R < spikeTrace.patch

3) Set the environment using the commands in the file setEnv

4) Building: ./build.sh

5) Cross-compile a C program using riscv64-unkonown-elf-gcc

6) Run: ./runSpike <benchmark> <args>
In the file runSpike.sh you can set the -t option to take the traces and -N<n> to generate a trace of n million instructions

Note: The spike proxy-kernel is only configured to take single-core traces.

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[Hrishikesh Nair]

Hi, 

I followed the same steps and attached my error after following step 2.d) below.

Could the patch be outdated?

Thanks

[Shubhankar Singh]

Hi,

The patch is for the following version of the code: https://github.com/riscv/riscv-isa-sim/tree/d48f107dba6a96fb827cb47fdf290261feadeb35

Download the code of the given version. The patch will work on it.

Regards,

Shubhankar

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