pkg/bpftrace: push empty image to dockerhub

this way we can work around the fact that get-deps does
not build dependencies architecture specific and therefore
tries to build bpftrace for riscv64
with this change an empty image will be pulled and put into
the debug container on riscv64

other architectures stay the same as before

Signed-off-by: Christoph Ostarek <christoph@zededa.com>

Makefile

@@ -377,7 +377,7 @@ endif
 PKGS_riscv64=pkg/ipxe pkg/mkconf pkg/mkimage-iso-efi pkg/grub     \
              pkg/mkimage-raw-efi pkg/uefi pkg/u-boot pkg/cross-compilers \
 	     pkg/debug pkg/dom0-ztools pkg/gpt-tools pkg/storage-init pkg/mkrootfs-squash \
-	     pkg/bsp-imx pkg/optee-os pkg/recovertpm
+	     pkg/bsp-imx pkg/optee-os pkg/recovertpm pkg/bpftrace
 # alpine-base and alpine must be the first packages to build
 PKGS=pkg/alpine $(PKGS_$(ZARCH))
 # eve-alpine-base is bootstrap image for eve-alpine

pkg/bpftrace/Dockerfile

@@ -15,9 +15,9 @@ WORKDIR /usr/src/bpftrace
 RUN for i in patches/*.patch; do git apply "$i"; done
 RUN mkdir build
 WORKDIR /usr/src/bpftrace/build
-RUN cmake ..
+RUN cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang ..
 RUN make -j "$(getconf _NPROCESSORS_ONLN)"
-RUN make DESTDIR="/out/opt/zededa" install
+RUN make install
 # portability analyser is disabled, therefore skip those tests
 # skip file exist test - probably broken because of container
 
@@ -30,11 +30,18 @@ RUN if perl -ne 'exit 1 if (m/^bogomips\s*:\s*(\d+)/i && $1 < 500);' /proc/cpuin
     fi
 
 
-FROM scratch
-COPY --from=build /out/opt/zededa/usr/local/bin/bpftrace-aotrt /usr/bin/bpftrace-aotrt
-COPY --from=build /usr/lib/libbpf.so.0 /usr/lib/libbpf.so.0
-COPY --from=build /usr/lib/libelf.so.1 /usr/lib/libelf.so.1
-COPY --from=build /lib/libz.so.1 /lib/libz.so.1
-COPY --from=build /usr/lib/libbcc_bpf.so.0 /usr/lib/libbcc_bpf.so.0
-COPY --from=build /usr/lib/libstdc++.so.6 /usr/lib/libstdc++.so.6
-COPY --from=build /usr/lib/libgcc_s.so.1 /usr/lib/libgcc_s.so.1
+RUN mkdir -vp /bpftrace/usr/bin /bpftrace/usr/lib /bpftrace/lib
+RUN cp -v /usr/bin/bpftrace-aotrt /bpftrace/usr/bin/bpftrace-aotrt
+RUN cp -v /usr/lib/libbpf.so.0 /bpftrace/usr/lib/libbpf.so.0
+RUN cp -v /usr/lib/libelf.so.1 /bpftrace/usr/lib/libelf.so.1
+RUN cp -v /lib/libz.so.1 /bpftrace/lib/libz.so.1
+RUN cp -v /usr/lib/libbcc_bpf.so.0 /bpftrace/usr/lib/libbcc_bpf.so.0
+RUN cp -v /usr/lib/libstdc++.so.6 /bpftrace/usr/lib/libstdc++.so.6
+RUN cp -v /usr/lib/libgcc_s.so.1 /bpftrace/usr/lib/libgcc_s.so.1
+
+FROM build AS build-amd64
+FROM build AS build-arm64
+FROM scratch AS build-riscv64
+
+# hadolint ignore=DL3006
+FROM build-${TARGETARCH} AS bpftrace