Fix strip, Add TODOs [skip ci]

Author: Claudio Raimondi

Dockerfile

@@ -99,23 +99,23 @@ ARG target_arch=x86_64-linux-gnu
 ARG target_arch_gcc=x86-64-linux-gnu
 ARG target_arch_dpkg=amd64
 ARG target_arch_rust=x86_64-unknown-linux-gnu
-ARG target_arch_cflags=x86-64
+ARG COPTFLAGS="-march=x86-64"
 
 FROM base-builder AS base-builder-linux-arm64
 
 ARG target_arch=aarch64-linux-gnu
 ARG target_arch_gcc=aarch64-linux-gnu
 ARG target_arch_dpkg=arm64
 ARG target_arch_rust=aarch64-unknown-linux-gnu
-ARG target_arch_cflags=armv8-a
+ARG COPTFLAGS="-march=armv8-a"
 
 FROM base-builder AS base-builder-linux-arm
 
 ARG target_arch=arm-linux-gnueabihf
 ARG target_arch_gcc=arm-linux-gnueabihf
 ARG target_arch_dpkg=armhf
 ARG target_arch_rust=armv7-unknown-linux-gnueabihf
-ARG target_arch_cflags=armv7-a
+ARG COPTFLAGS="-march=armv7-a -mfpu=vfpv3-d16 -mfloat-abi=hard"
 
 FROM base-builder-${TARGETOS}-${TARGETARCH} AS builder
 
@@ -140,7 +140,7 @@ ARG CXX=${target_arch}-g++
 ARG LD=${target_arch}-ld
 ARG STRIP=${target_arch}-strip
 ARG TARGET=${target_arch_rust}
-ARG COPTFLAGS="-O2 -march=${target_arch_cflags}"
+ARG COPTFLAGS="-O2 ${COPTFLAGS}"
 
 WORKDIR /opt
 
@@ -157,12 +157,17 @@ linker = "${target_arch}-gcc"
 rustflags = ["-C", "target-cpu=generic"]
 EOF
 
+#TODO: Fix unaligned access on armv7
 RUN ./configure --prefix=/tmp/lightning_install --enable-static --disable-compat --disable-valgrind
 COPY .git/ .git/
 RUN git submodule update --init --recursive --jobs $(nproc) --depth 1
 RUN uv run make -j$(nproc) install
 
-RUN ${STRIP} --strip-unneeded #TODO: fix
+RUN for f in /tmp/lightning_install/bin/*; do \
+      if file "$f" | grep -q 'ELF'; then \
+        ${STRIP} --strip-unneeded "$f"; \
+      fi; \
+    done
 
 FROM base-target AS final
 
@@ -177,7 +182,7 @@ RUN apt-get update && \
 
 COPY --from=downloader    /opt/bitcoin/bin/bitcoin-cli      /usr/bin/
 COPY --from=downloader    /opt/litecoin/bin/litecoin-cli    /usr/bin/
-COPY --from=builder       /tmp/lightning_install   /usr/local/
+COPY --from=builder       /tmp/lightning_install/           /usr/local/
 
 COPY tools/docker-entrypoint.sh    /entrypoint.sh