SPEC2017 Port

This branch is a WIP and changes Speckle's usage model. It removes run support, and makes the copy mode the default.

Key changes:

• Host and Target configurations are provided.
• A target SPEC2017 build is done to generate target binaries
• A host SPEC2017 runsetup is done to complete generate a working directories for each benchmark.
• The host directory is copyied to the overlay directory, host binaries are replaced with target binaries
• A run script(run.sh) is generated that executes all the inputs for the benchmark

Buld for Spike run

# make sure you have the linux-gnu cross-compiler installed
# and $RISCV properly defined.
. riscv_env

# set the SPEC CPU 2017 path
export SPEC_DIR=/path/to/SPEC_CPU_2017

# generate the intrate benchmarks
./gen_binaries.sh --compile --suite intrate --input ref

# generate the fprate benchmarks
./gen_binaries.sh --compile --suite fprate --input ref

# if sucessful, all files are located in
ls -l build/overlay/intrate
ls -l build/overlay/fprate

Some extra fixes need to be done manually.

• Input 1 of 525.x264_r depends on the log output of input 0. Since we normally do not run the whole benchmark, we need to copy a prepared log to the running directory for running input 1:

cp -r 525.x264_r build/overlay/intrate/

• 521.wrf_r has a different running procedure. It lets wrf run to generate a putput file, and then using diffwrf to compare this output file with a prepared output for correctness. The script in Speckle seems to believe the following comparison as the main benchmark and generate a wrong running script. To fix this:

cp -r 521.wrf_r build/overlay/fprate/