ci: Organise shared helper scripts

Move shared helper scripts used by Docker builds under docker/scripts.

src/ci/docker/host-aarch64/dist-aarch64-linux/Dockerfile

@@ -43,10 +43,10 @@ ENV LD_LIBRARY_PATH=/rustroot/lib64:/rustroot/lib32:/rustroot/lib
 ENV PKG_CONFIG_PATH=/rustroot/lib/pkgconfig
 WORKDIR /tmp
 RUN mkdir /home/user
-COPY host-aarch64/dist-aarch64-linux/shared.sh /tmp/
+COPY scripts/shared.sh /tmp/
 
 # Need at least GCC 5.1 to compile LLVM
-COPY host-aarch64/dist-aarch64-linux/build-gcc.sh /tmp/
+COPY scripts/build-gcc.sh /tmp/
 RUN ./build-gcc.sh && yum remove -y gcc gcc-c++
 
 ENV CC=gcc CXX=g++
@@ -56,12 +56,13 @@ COPY scripts/cmake.sh /tmp/
 RUN ./cmake.sh
 
 # Build LLVM+Clang
-COPY host-aarch64/dist-aarch64-linux/build-clang.sh /tmp/
+COPY scripts/build-clang.sh /tmp/
+ENV LLVM_BUILD_TARGETS=AArch64
 RUN ./build-clang.sh
 ENV CC=clang CXX=clang++
 
 # Build zstd to enable `llvm.libzstd`.
-COPY host-aarch64/dist-aarch64-linux/build-zstd.sh /tmp/
+COPY scripts/build-zstd.sh /tmp/
 RUN ./build-zstd.sh
 
 COPY scripts/sccache.sh /scripts/
@@ -82,7 +83,7 @@ ENV RUST_CONFIGURE_ARGS \
       --set target.aarch64-unknown-linux-gnu.ar=/rustroot/bin/llvm-ar \
       --set target.aarch64-unknown-linux-gnu.ranlib=/rustroot/bin/llvm-ranlib \
       --set llvm.link-shared=true \
-      --set llvm.thin-lto=false \
+      --set llvm.thin-lto=true \
       --set llvm.libzstd=true \
       --set llvm.ninja=false \
       --set rust.debug-assertions=false \

src/ci/docker/host-x86_64/dist-i686-linux/Dockerfile

@@ -46,18 +46,20 @@ ENV LD_LIBRARY_PATH=/rustroot/lib64:/rustroot/lib32:/rustroot/lib
 ENV PKG_CONFIG_PATH=/rustroot/lib/pkgconfig
 WORKDIR /tmp
 RUN mkdir /home/user
-COPY host-x86_64/dist-x86_64-linux/shared.sh /tmp/
+COPY scripts/shared.sh /tmp/
 
 # Need at least GCC 5.1 to compile LLVM nowadays
-COPY host-x86_64/dist-x86_64-linux/build-gcc.sh /tmp/
+COPY scripts/build-gcc.sh /tmp/
+ENV GCC_BUILD_TARGET=i686
 RUN ./build-gcc.sh && yum remove -y gcc gcc-c++
 
 COPY scripts/cmake.sh /tmp/
 RUN ./cmake.sh
 
 # Now build LLVM+Clang, afterwards configuring further compilations to use the
 # clang/clang++ compilers.
-COPY host-x86_64/dist-x86_64-linux/build-clang.sh /tmp/
+COPY scripts/build-clang.sh /tmp/
+ENV LLVM_BUILD_TARGETS=X86
 RUN ./build-clang.sh
 ENV CC=clang CXX=clang++
 

src/ci/docker/host-x86_64/dist-powerpc64le-linux/Dockerfile

@@ -18,7 +18,7 @@ RUN /scripts/crosstool-ng-build.sh
 WORKDIR /build
 
 RUN apt-get install -y --no-install-recommends rpm2cpio cpio
-COPY host-x86_64/dist-powerpc64le-linux/shared.sh host-x86_64/dist-powerpc64le-linux/build-powerpc64le-toolchain.sh /build/
+COPY scripts/shared.sh host-x86_64/dist-powerpc64le-linux/build-powerpc64le-toolchain.sh /build/
 RUN ./build-powerpc64le-toolchain.sh
 
 COPY scripts/sccache.sh /scripts/

src/ci/docker/host-x86_64/dist-x86_64-linux/Dockerfile

@@ -46,10 +46,10 @@ ENV LD_LIBRARY_PATH=/rustroot/lib64:/rustroot/lib32:/rustroot/lib
 ENV PKG_CONFIG_PATH=/rustroot/lib/pkgconfig
 WORKDIR /tmp
 RUN mkdir /home/user
-COPY host-x86_64/dist-x86_64-linux/shared.sh /tmp/
+COPY scripts/shared.sh /tmp/
 
 # Need at least GCC 5.1 to compile LLVM nowadays
-COPY host-x86_64/dist-x86_64-linux/build-gcc.sh /tmp/
+COPY scripts/build-gcc.sh /tmp/
 RUN ./build-gcc.sh && yum remove -y gcc gcc-c++
 
 # LLVM 17 needs cmake 3.20 or higher.
@@ -58,12 +58,13 @@ RUN ./cmake.sh
 
 # Now build LLVM+Clang, afterwards configuring further compilations to use the
 # clang/clang++ compilers.
-COPY host-x86_64/dist-x86_64-linux/build-clang.sh /tmp/
+COPY scripts/build-clang.sh /tmp/
+ENV LLVM_BUILD_TARGETS=X86
 RUN ./build-clang.sh
 ENV CC=clang CXX=clang++
 
 # Build zstd to enable `llvm.libzstd`.
-COPY host-x86_64/dist-x86_64-linux/build-zstd.sh /tmp/
+COPY scripts/build-zstd.sh /tmp/
 RUN ./build-zstd.sh
 
 COPY scripts/sccache.sh /scripts/

src/ci/docker/host-x86_64/x86_64-gnu-llvm-18/Dockerfile

@@ -54,8 +54,8 @@ ENV RUST_CONFIGURE_ARGS \
       --set rust.randomize-layout=true \
       --set rust.thin-lto-import-instr-limit=10
 
-COPY host-x86_64/dist-x86_64-linux/shared.sh /scripts/
-COPY host-x86_64/dist-x86_64-linux/build-gccjit.sh /scripts/
+COPY scripts/shared.sh /scripts/
+COPY scripts/build-gccjit.sh /scripts/
 
 RUN /scripts/build-gccjit.sh /scripts
 

src/ci/docker/host-x86_64/x86_64-gnu-llvm-19/Dockerfile

@@ -54,8 +54,8 @@ ENV RUST_CONFIGURE_ARGS \
       --set rust.randomize-layout=true \
       --set rust.thin-lto-import-instr-limit=10
 
-COPY host-x86_64/dist-x86_64-linux/shared.sh /scripts/
-COPY host-x86_64/dist-x86_64-linux/build-gccjit.sh /scripts/
+COPY scripts/shared.sh /scripts/
+COPY scripts/build-gccjit.sh /scripts/
 
 RUN /scripts/build-gccjit.sh /scripts
 

src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile

@@ -89,8 +89,8 @@ ENV HOST_TARGET x86_64-unknown-linux-gnu
 # assertions enabled! Therefore, we cannot force download CI rustc.
 #ENV FORCE_CI_RUSTC 1
 
-COPY host-x86_64/dist-x86_64-linux/shared.sh /scripts/
-COPY host-x86_64/dist-x86_64-linux/build-gccjit.sh /scripts/
+COPY scripts/shared.sh /scripts/
+COPY scripts/build-gccjit.sh /scripts/
 
 RUN /scripts/build-gccjit.sh /scripts
 

src/ci/docker/host-x86_64/dist-x86_64-linux/build-clang.sh → src/ci/docker/scripts/build-clang.sh

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-set -ex
+set -exu
 
 source shared.sh
 
@@ -34,7 +34,7 @@ hide_output \
       -DCOMPILER_RT_BUILD_XRAY=OFF \
       -DCOMPILER_RT_BUILD_MEMPROF=OFF \
       -DCOMPILER_RT_BUILD_CTX_PROFILE=OFF \
-      -DLLVM_TARGETS_TO_BUILD=X86 \
+      -DLLVM_TARGETS_TO_BUILD=$LLVM_BUILD_TARGETS \
       -DLLVM_INCLUDE_BENCHMARKS=OFF \
       -DLLVM_INCLUDE_TESTS=OFF \
       -DLLVM_INCLUDE_EXAMPLES=OFF \

src/ci/docker/host-x86_64/dist-x86_64-linux/build-gcc.sh → src/ci/docker/scripts/build-gcc.sh

@@ -50,7 +50,9 @@ cd ..
 rm -rf gcc-build
 rm -rf gcc-$GCC
 
-# FIXME: clang doesn't find 32-bit libraries in /rustroot/lib,
-# but it does look all the way under /rustroot/lib/[...]/32,
-# so we can link stuff there to help it out.
-ln /rustroot/lib/*.{a,so} -rst /rustroot/lib/gcc/x86_64-pc-linux-gnu/$GCC/32/
+if [[ $GCC_BUILD_TARGET == "i686" ]]; then
+    # FIXME: clang doesn't find 32-bit libraries in /rustroot/lib,
+    # but it does look all the way under /rustroot/lib/[...]/32,
+    # so we can link stuff there to help it out.
+    ln /rustroot/lib/*.{a,so} -rst /rustroot/lib/gcc/x86_64-pc-linux-gnu/$GCC/32/
+fi