diff options
| -rw-r--r-- | content/2019-10-27-kernel-debugging-qemu/Makefile | 35 | ||||
| -rw-r--r-- | content/2019-10-27-kernel-debugging-qemu/demo.mp4 | bin | 0 -> 1215913 bytes | |||
| -rw-r--r-- | content/2019-10-27-kernel-debugging-qemu/index.md | 10 |
3 files changed, 42 insertions, 3 deletions
diff --git a/content/2019-10-27-kernel-debugging-qemu/Makefile b/content/2019-10-27-kernel-debugging-qemu/Makefile index 11e7c7b..02ec2c2 100644 --- a/content/2019-10-27-kernel-debugging-qemu/Makefile +++ b/content/2019-10-27-kernel-debugging-qemu/Makefile @@ -1,3 +1,19 @@ +help: + @echo "[H]: Makefile inteded to be used with podman/docker." + @echo "" + @echo "[C]: Build the podman image and drop into a shell in a container instance." + @echo "(Alternative use the 'docker' target)." + @echo "> make podman" + @echo "" + @echo "[C]: Build the initramfs and kernel (run from the container shell)." + @echo "> make build" + @echo "" + @echo "[C]: Start qemu in the background and attach gdb in the foreground." + @echo "> make run" + @echo "" + @echo "[C]: Attach to the qemu serial console. This is done in a loop to handle restarts." + @echo "> make con" + build: scripts/build_kernel.sh scripts/build_initrd.sh @@ -7,6 +23,19 @@ clean: $(RM) -r busybox-* $(RM) initramfs.cpio.gz -docker: - DOCKER_BUILDKIT=1 docker build -t kernel-dev . - docker run -it --rm -v $(PWD):/develop/scripts -v $(PWD)/Makefile:/develop/Makefile kernel-dev +run: + scripts/run.sh + +con: + while true; do telnet localhost 12345; sleep 1; done + +docker: do-docker +podman: do-podman + +do-%: + $* build -t kernel-dev . + $* run -it --rm --name kernel-dev \ + -v kernel-dev:/develop \ + -v $(PWD):/develop/scripts \ + -v $(PWD)/Makefile:/develop/Makefile \ + kernel-dev diff --git a/content/2019-10-27-kernel-debugging-qemu/demo.mp4 b/content/2019-10-27-kernel-debugging-qemu/demo.mp4 Binary files differnew file mode 100644 index 0000000..0b87081 --- /dev/null +++ b/content/2019-10-27-kernel-debugging-qemu/demo.mp4 diff --git a/content/2019-10-27-kernel-debugging-qemu/index.md b/content/2019-10-27-kernel-debugging-qemu/index.md index bda445b..297f82c 100644 --- a/content/2019-10-27-kernel-debugging-qemu/index.md +++ b/content/2019-10-27-kernel-debugging-qemu/index.md @@ -217,6 +217,16 @@ follows. docker run -it kernel-dev ``` +> Alternatively use podman. + +## Appendix: Screencast of an example debug session + +The screencast gives an example, debugging the Linux kernel using the above +mentioned Dockerfile. + +<video width="100%" height="auto" controls> + <source src="demo.mp4" type="video/mp4"> +</video> [linux-kernel]: https://www.kernel.org [initrd]: https://www.kernel.org/doc/html/latest/admin-guide/initrd.html |