Copy linux toolchain to devcontainer, fix shell issues

Author: object-Object

.github/.devcontainer/Dockerfile

@@ -24,6 +24,8 @@ ENV PATH=$PATH:/opt/riscv/bin:/opt/sail-riscv
 
 COPY --from=ghcr.io/object-object/mlogv32-riscv-gnu-toolchain:rv32ima-ilp32 /opt/riscv /opt/riscv
 
+COPY --from=ghcr.io/object-object/mlogv32-riscv-gnu-toolchain:rv32ima-ilp32-linux /opt/riscv /opt/riscv
+
 COPY --from=build-sail /opt/sail-riscv /opt/sail-riscv
 
 # https://code.visualstudio.com/remote/advancedcontainers/persist-bash-history
@@ -34,6 +36,12 @@ RUN SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhisto
     && touch /commandhistory/.bash_history \
     && chown -R $USERNAME /commandhistory \
     && echo "$SNIPPET" >> "/home/$USERNAME/.bashrc"
+    && sed -i '^/__bash_prompt$/d' "/home/$USERNAME/.bashrc"
+# ^ fix weird issues with shell not handling line wrapping
+
+# buildroot dependencies
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends cpio bc
 
 # avoid permission issues with cargo if cargo install runs as root
 USER ${USERNAME}