commit 35e5afd33a30562c424d71500df26ac2fc4bc5da
author Arnav Kansal <rnv@google.com> Thu Nov 10 20:15:17 2022 +0000
committer Arnav Kansal <rnv@google.com> Wed Dec 07 00:11:16 2022 +0000
tree c95352e21a39844619725eef2bdf96ed98254a28
parent 4e26742fa89256bf80b56602630749ed9e00409a

Add BuildPrecompiledDriver method for GPU precompilation

This method takes as input a build request in the form of a
textproto config. See
schttps://cos.googlesource.com/cos/tools/+/refs/heads/master/src/pkg/gpuconfig/proto/config.proto.
It builds the precompiled driver package (NVIDIA installer packaged with
the preinstalled COS kernel headers).

The build dir and the name of the precompiled driver package is returned
by the method.

Note:
The build dir must be cleaned by the caller of `BuildPrecompiledDriver` after usage.
The following env vars of the process calling this method are altered.
CC, CXX, SYSROOT, PATH.

The method also creates a symbolic link to the linker provided in the
downloaded toolchain package as described by the textproto config.

BUG=b/238215395

Change-Id: I421be52fa0ec62ea7d00e30a5d3d1ecd927eebd1
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/38609
Reviewed-by: Meena Shanmugam <meenashanmugam@google.com>
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Tested-by: Arnav Kansal <rnv@google.com>