Bug 1582195 - Provide a job to build lucetc r=froydnj

Differential Revision: https://phabricator.services.mozilla.com/D51716

--HG--
extra : moz-landing-system : lando

taskcluster/ci/fetch/toolchains.yml

@@ -435,3 +435,10 @@ cmake:
         artifact-name: cmake.tar.zst
         strip-components: 1
         add-prefix: cmake/
+
+lucetc-source:
+    description: lucetc source code
+    fetch:
+        type: git
+        repo: https://github.com/PLSysSec/lucet_sandbox_compiler/
+        revision: 5c22392b5b1aaa60e915c75e92b57391e1e61e6d

taskcluster/ci/toolchain/misc.yml

@@ -175,3 +175,19 @@ wrench-deps:
             - android-rs-glue
         toolchain:
             - linux64-rust-1.37  # whatever m-c is built with
+
+lucetc:
+    description: "lucetc build process"
+    treeherder:
+        symbol: TL(lucetc)
+    run:
+        script: build-lucetc.sh
+        toolchain-artifact: public/build/lucetc.tar.xz
+    fetches:
+        fetch:
+            - cmake
+            - lucetc-source
+        toolchain:
+            - linux64-binutils
+            - linux64-clang
+            - linux64-rust

taskcluster/scripts/misc/build-lucetc.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+set -x -e -v
+
+cd $MOZ_FETCHES_DIR/lucet_sandbox_compiler
+
+export PATH=$MOZ_FETCHES_DIR/binutils/bin:$MOZ_FETCHES_DIR/clang/bin:$PATH:$MOZ_FETCHES_DIR/rustc/bin:$MOZ_FETCHES_DIR/cmake/bin
+export CC=$MOZ_FETCHES_DIR/clang/bin/clang
+export CFLAGS="-L$MOZ_FETCHES_DIR/clang/lib"
+export CXXFLAGS=$CFLAGS
+export CXX=$MOZ_FETCHES_DIR/clang/bin/clang++
+export AR=$MOZ_FETCHES_DIR/clang/bin/llvm-ar
+export RUSTFLAGS="-C linker=$CXX -C link-arg=$CXXFLAGS"
+
+make build
+mkdir -p $UPLOAD_DIR
+tar --xz -cf $UPLOAD_DIR/lucetc.tar.xz target/release/lucetc