Add vast build. CC @xlauko

.github/workflows/build.yml

@@ -7,7 +7,18 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        image: ['misc', 'rocm', 'compcert', 'rust-cg-gcc', 'rust-linux', 'iwyu', 'lc3', 'nasm', 'hylo', 'heaptrack']
+        image:
+        - compcert
+        - heaptrack
+        - hylo
+        - iwyu
+        - lc3
+        - misc
+        - nasm
+        - rocm
+        - rust-cg-gcc
+        - rust-linux
+        - vast
     steps:
     - name: Docker Setup Buildx
       uses: docker/setup-buildx-action@v2

Dockerfile.vast

@@ -0,0 +1,36 @@
+FROM ubuntu:22.04
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update -y -q && apt upgrade -y -q
+RUN apt-get install -y -q \
+    build-essential \
+    curl \
+    git \
+    patchelf \
+    lld \
+    ninja-build \
+    python3-pip \
+    ssh \
+    software-properties-common
+
+RUN curl -sL https://github.com/Kitware/CMake/releases/download/v3.26.3/cmake-3.26.3-linux-x86_64.tar.gz \
+    | tar zx -C /usr --strip-components=1
+
+RUN bash -c "$(curl -s -o - https://apt.llvm.org/llvm.sh)" 17
+
+RUN apt-get install -y -q \
+ libstdc++-12-dev \
+ llvm-17 \
+ libmlir-17 \
+ libmlir-17-dev \
+ mlir-17-tools \
+ libclang-17-dev
+
+RUN pip3 install lit
+
+RUN mkdir -p /root
+COPY vast /root/
+COPY common.sh /root/
+
+WORKDIR /root

vast/README.md

@@ -0,0 +1,3 @@
+### Builder for Vast
+
+This is the build setup for [VAST](https://github.com/trailofbits/vast). 

vast/build.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+
+## $1 : version
+## $2 : destination: a directory
+## $3 : last revision: a revision descriptor which may be fetched from the cache.
+
+set -exu
+source common.sh
+
+ROOT=$(pwd)
+VERSION=$1
+URL="https://github.com/trailofbits/vast"
+
+if echo "${VERSION}" | grep 'trunk'; then
+    VERSION=trunk-$(date +%Y%m%d)
+    BRANCH=master
+    REVISION=$(get_remote_revision "${URL}" "heads/${BRANCH}")
+else
+    BRANCH=${VERSION}
+    REVISION=$(get_remote_revision "${URL}" "tags/${BRANCH}")
+fi
+
+FULLNAME=vast-${VERSION}.tar.xz
+OUTPUT=${ROOT}/${FULLNAME}
+LAST_REVISION="${3:-}"
+
+if [[ -d "${2}" ]]; then
+   OUTPUT=$2/${FULLNAME}
+else
+   OUTPUT=${2-$OUTPUT}
+fi
+
+initialise "${REVISION}" "${OUTPUT}" "${LAST_REVISION}"
+
+STAGING_DIR=/opt/compiler-explorer/vast-${VERSION}
+
+rm -rf "vast-${VERSION}"
+git clone -q --depth 1 --recursive --single-branch -b "${BRANCH}" "${URL}" "vast-${VERSION}"
+
+cd "vast-${VERSION}"
+
+cmake --preset ninja-multi-default \
+  --toolchain ./cmake/lld.toolchain.cmake \
+  --install-prefix "${STAGING_DIR}" \
+  -DLLVM_EXTERNAL_LIT=/usr/local/bin/lit \
+  -DCMAKE_INSTALL_RPATH:PATH="\$ORIGIN/../lib" \
+  -DCMAKE_PREFIX_PATH="/usr/lib/llvm-17;/usr/lib/llvm-17/lib/cmake/mlir;/usr/lib/llvm-17/lib/cmake/clang"
+
+cmake --build --preset ninja-rel
+cmake --install ./builds/ninja-multi-default
+
+# Copy all shared object dependencies into the release directory to create a hermetic build, per
+# Compiler Explorer requirements. Update rpath for these objects to $ORIGIN.
+# To ensure we only muck with rpaths for these objects, do this work in a temporary directory.
+# This code copied and modified from compiler-explorer/cobol-builder/build/build.sh
+cp $(ldd "${STAGING_DIR}/bin/vast-front" | grep -E  '=> /' | grep -Ev 'lib(pthread|c|dl|rt).so' | awk '{print $3}') "${STAGING_DIR}/lib"
+patchelf --set-rpath '$ORIGIN/../lib' $(find ${STAGING_DIR}/lib/ -name \*.so\*)
+
+complete "${STAGING_DIR}" "vast-${VERSION}" "${OUTPUT}"