Bug 1604964 - Add fix-stacks toolchain. r=erahm

Differential Revision: https://phabricator.services.mozilla.com/D57747

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

taskcluster/ci/fetch/toolchains.yml

@@ -456,3 +456,10 @@ dump-syms:
         type: git
         repo: https://github.com/mozilla/dump_syms/
         revision: fe924d894ae079a3fe3f2e0f83434e89204af155
+
+fix-stacks:
+    description: fix-stacks source code
+    fetch:
+        type: git
+        repo: https://github.com/mozilla/fix-stacks/
+        revision: c65a2029b9f2165dc76019227bb878b44346194e

taskcluster/ci/test/xpcshell.yml

@@ -78,18 +78,22 @@ xpcshell:
                 linux.*:
                     - linux64-node
                     - linux64-minidump-stackwalk
+                    - linux64-fix-stacks
                 macosx.*:
                     - macosx64-node
                     - macosx64-minidump-stackwalk
+                    - macosx64-fix-stacks
                 win.*aarch64.*:
                     - win32-node
                     - win32-minidump-stackwalk
                 win.*-64.*:
                     - win64-node
                     - win32-minidump-stackwalk
+                    - win64-fix-stacks
                 win.*32.*:
                     - win32-node
                     - win32-minidump-stackwalk
+                    - win64-fix-stacks
                 android-em-7.*:
                     - linux64-node
                     - linux64-minidump-stackwalk

taskcluster/ci/toolchain/fix-stacks.yml

@@ -0,0 +1,56 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+---
+job-defaults:
+    description: "fix-stacks toolchain build"
+    worker:
+        max-run-time: 1800
+    run:
+        script: build-fix-stacks.sh
+    run-on-projects:
+        - trunk
+        - try
+    fetches:
+        fetch:
+            - fix-stacks
+
+linux64-fix-stacks:
+    treeherder:
+        symbol: TL(fix-stacks)
+    worker-type: b-linux
+    run:
+        toolchain-artifact: public/build/fix-stacks.tar.xz
+    fetches:
+        toolchain:
+            - linux64-binutils
+            - linux64-clang-9
+            - linux64-rust
+
+macosx64-fix-stacks:
+    treeherder:
+        symbol: TM(fix-stacks)
+    worker-type: b-linux
+    run:
+        toolchain-artifact: public/build/fix-stacks.tar.xz
+    fetches:
+        toolchain:
+            - linux64-binutils
+            - linux64-clang-9
+            - linux64-rust-macos
+
+win64-fix-stacks:
+    treeherder:
+        symbol: TW64(fix-stacks)
+    worker-type: b-win2012
+    worker:
+        env:
+            TOOLTOOL_MANIFEST: "browser/config/tooltool-manifests/win64/vs2017.manifest"
+    run:
+        toolchain-artifact: public/build/fix-stacks.tar.bz2
+        resources:
+            - 'taskcluster/scripts/misc/tooltool-download.sh'
+        tooltool-downloads: internal
+    fetches:
+        toolchain:
+            - win64-rust

taskcluster/ci/toolchain/kind.yml

@@ -29,6 +29,7 @@ jobs-from:
     - clang-tidy.yml
     - clang.yml
     - dump-syms.yml
+    - fix-stacks.yml
     - gcc.yml
     - geckodriver.yml
     - gn.yml

taskcluster/scripts/misc/build-fix-stacks.sh

@@ -0,0 +1,51 @@
+#!/bin/bash
+set -x -e -v
+
+# This script is for building fix-stacks
+PROJECT=fix-stacks
+
+case "$(uname -s)" in
+Linux)
+    COMPRESS_EXT=xz
+    export CC=$MOZ_FETCHES_DIR/clang/bin/clang
+    export CXX=$MOZ_FETCHES_DIR/clang/bin/clang++
+    export PATH="$MOZ_FETCHES_DIR/binutils/bin:$PATH"
+    export RUSTFLAGS="-C linker=$CXX"
+    ;;
+MINGW*)
+    UPLOAD_DIR=$PWD/public/build
+    COMPRESS_EXT=bz2
+
+    . $GECKO_PATH/taskcluster/scripts/misc/vs-setup.sh
+    ;;
+esac
+
+cd $GECKO_PATH
+
+if [ -n "$TOOLTOOL_MANIFEST" ]; then
+  . taskcluster/scripts/misc/tooltool-download.sh
+fi
+
+# cargo gets mad if the parent directory has a Cargo.toml file in it
+if [ -e Cargo.toml ]; then
+  mv Cargo.toml Cargo.toml.back
+fi
+
+PATH="$(cd $MOZ_FETCHES_DIR && pwd)/rustc/bin:$PATH"
+
+cd $MOZ_FETCHES_DIR/$PROJECT
+
+cargo build --verbose --release
+
+mkdir $PROJECT
+cp target/release/${PROJECT}* ${PROJECT}/
+tar -acf ${PROJECT}.tar.$COMPRESS_EXT $PROJECT
+mkdir -p $UPLOAD_DIR
+cp ${PROJECT}.tar.$COMPRESS_EXT $UPLOAD_DIR
+
+cd ..
+if [ -e Cargo.toml.back ]; then
+  mv Cargo.toml.back Cargo.toml
+fi
+
+. $GECKO_PATH/taskcluster/scripts/misc/vs-cleanup.sh