fix: Setup devcontainers for building aws-lc-sys

This needs a few environment variables and debian packages installed to facilitate building that package. This includes the env vars in the `just-cargo` invocation, and the packages in the rust, rust-musl, and devcontainer images.

Author: sfleen

Dockerfile

@@ -314,7 +314,11 @@ RUN --mount=type=cache,from=apt-base,source=/etc/apt,target=/etc/apt,ro \
         jo \
         jq \
         libssl-dev \
-        pkg-config
+        pkg-config \
+        g++-aarch64-linux-gnu \
+        gcc-aarch64-linux-gnu \
+        binutils-aarch64-linux-gnu \
+        libc6-dev-arm64-cross
 RUN --mount=type=cache,from=apt-llvm,source=/etc/apt,target=/etc/apt,ro \
     --mount=type=cache,from=apt-llvm,source=/var/cache/apt,target=/var/cache/apt,sharing=locked \
     --mount=type=cache,from=apt-llvm,source=/var/lib/apt/lists,target=/var/lib/apt/lists,sharing=locked \
@@ -346,6 +350,7 @@ RUN --mount=type=cache,from=apt-base,source=/etc/apt,target=/etc/apt,ro \
     DEBIAN_FRONTEND=noninteractive apt-get install -y \
         g++-aarch64-linux-gnu \
         gcc-aarch64-linux-gnu \
+        binutils-aarch64-linux-gnu \
         libc6-dev-arm64-cross
 
 ##
@@ -374,7 +379,11 @@ RUN --mount=type=cache,from=apt-base,source=/etc/apt,target=/etc/apt,ro \
         time \
         tshark \
         umoci \
-        unzip
+        unzip \
+        g++-aarch64-linux-gnu \
+        gcc-aarch64-linux-gnu \
+        binutils-aarch64-linux-gnu \
+        libc6-dev-arm64-cross
 
 # Link the gnu versions of ranlib to the musl toolchain.
 # See: https://github.com/linkerd/linkerd2/issues/13350

bin/just-cargo

@@ -34,13 +34,15 @@ _rustflags-self-contained := "-Clink-self-contained=yes -Clinker=rust-lld -Clink
 export AR_aarch64_unknown_linux_gnu := _ar
 export CC_aarch64_unknown_linux_gnu := _clang
 export CFLAGS_aarch64_unknown_linux_gnu := '--sysroot=/usr/aarch64-linux-gnu'
+AWS_LC_SYS_CFLAGS_aarch64_unknown_linux_gnu := '-fuse-ld=/usr/aarch64-linux-gnu/bin/ld'
 export STRIP_aarch64_unknown_linux_gnu := _strip
 export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER := 'aarch64-linux-gnu-gcc'
 
 # linux/arm64 + musl
 export AR_aarch64_unknown_linux_musl := _ar
 export CC_aarch64_unknown_linux_musl := _clang
 export CFLAGS_aarch64_unknown_linux_musl := '--sysroot=/usr/aarch64-linux-gnu'
+AWS_LC_SYS_CFLAGS_aarch64_unknown_linux_musl := '-fuse-ld=/usr/aarch64-linux-gnu/bin/ld'
 export STRIP_aarch64_unknown_linux_musl := _strip
 export CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_RUSTFLAGS := _rustflags-self-contained