tree ecb3c4d8e3403141d18e20211548859e7aec4e7f
parent 95fc16e3e4046aae24a2ccfe74a0b8c0c11f8e20
author Timothy Trippel <ttrippel@google.com> 1652392633 -0700
committer Timothy Trippel <5633066+timothytrippel@users.noreply.github.com> 1652469749 -0700

[bazel,dvsim] remove gen-binaries.py's reliance on meson_init.sh

Meson will soon be removed from our project and replaced entirely with
bazel (#12449). This updates the the OTBN `gen-binaries.py` script to
not rely on the presence of the `.env` file that was produced by the
`meson_init.sh` script to provide locations to the RV32 toolchain.

Instead, the `gen-binaries.py` script now uses environment variables to
get the locations of the RV32 toolchain tools, which are populated via
queries to bazel.

This fixes #12447.

Signed-off-by: Timothy Trippel <ttrippel@google.com>