Ktest2

.buildkite/pipeline.yml

@@ -2,6 +2,8 @@ steps:
   - label: "build amd64 in docker"
     key: make_docker
     command: "make docker"
+    artifact_paths:
+      - "initramfs.gz"
     agents:
       image: family/core-ubuntu-2204
       provider: gcp
@@ -29,6 +31,7 @@ steps:
     key: test
     command: "./.buildkite/runtest.sh"
     depends_on:
+      - make_docker
       - make_centos7
     agents:
       image: family/core-ubuntu-2204

.buildkite/runtest.sh

@@ -12,8 +12,15 @@ if [ -z "${BUILDKITE}" ]; then
 	exit 1
 fi
 
+download initramfs.gz .
 download quark-test .
 chmod +x quark-test
 
+echo updating packages...
+sudo apt-get -qq update -y
+echo installing packages...
+sudo apt-get -qq install -y --no-install-recommends qemu-system-x86 > /dev/null
+
 sudo ./quark-test
+./krun.sh initramfs.gz kernel-images/linux-4.18.0-553.el8_10.x86_64 quark-test
 exit $?

Makefile

@@ -197,7 +197,9 @@ DOCKER_RUN_ARGS=$(QDOCKER)				\
 
 docker: docker-image clean-all
 	$(call msg,DOCKER-RUN,Dockerfile)
-	$(Q)$(DOCKER) run $(DOCKER_RUN_ARGS) /bin/bash -c "make -C $(PWD)"
+	$(Q)$(DOCKER) run				\
+		$(DOCKER_RUN_ARGS)			\
+		/bin/bash -c "make -C $(PWD) all initramfs.gz"
 
 docker-cross-arm64: clean-all docker-image manpages.h
 	$(call msg,DOCKER-RUN,Dockerfile)

init.c

@@ -12,6 +12,7 @@
 #include <sys/reboot.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
+#include <sys/utsname.h>
 #include <sys/wait.h>
 
 static void
@@ -27,11 +28,31 @@ powerdown(void)
 	}
 }
 
+static void
+display_banner(char *argv[])
+{
+	struct utsname	  uts;
+	char		**pp;
+
+	if (uname(&uts) == -1)
+		warn("uname");
+	else {
+		putchar('`');
+		for (pp = argv; *pp != 0; pp++) {
+			if (pp != argv)
+				putchar(' ');
+			printf("%s", *pp);
+		}
+		putchar('`');
+		printf(" on %s %s\n", uts.release, uts.machine);
+	}
+}
+
 int
 main(int argc, char *argv[])
 {
-	pid_t		 pid;
-	int		 status;
+	pid_t	pid;
+	int	status;
 
 	/*
 	 * Cut the kernel some slack until it is in a good shape, I see TSC
@@ -55,7 +76,6 @@ main(int argc, char *argv[])
 
 	/* child */
 	if (pid == 0) {
-
 		if (mkdir("/proc", 0666) != 0)
 			err(1, "mkdir /proc");
 		if (mkdir("/sys", 0666) != 0)
@@ -76,6 +96,8 @@ main(int argc, char *argv[])
 			}
 		}
 
+		display_banner(argv);
+
 		return (execv(argv[0], argv));
 	}
 

krun.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+Script=${0##*/}
+
+function usage
+{
+	echo "usage: $Script initramfs_path kernel_path cmd_line" 1>&2
+	exit 1
+}
+
+if [ $# -lt 3 ]; then
+   usage
+fi
+
+initramfs="$1"
+kernel="$2"
+shift 2
+cmdline="$*"
+
+function qemu {
+	case "$(file -b "$kernel" | awk '{print $3}')" in
+	x86)
+		qemu-system-x86_64						\
+			-initrd "$initramfs"					\
+			-kernel "$kernel"					\
+			-nographic						\
+			--append "console=ttyS0 quiet TERM=dumb $cmdline"
+		;;
+	ARM64)
+		qemu-system-aarch64						\
+			-machine virt						\
+			-cpu cortex-a57						\
+			-initrd "$initramfs"					\
+			-kernel "$kernel"					\
+			-nographic						\
+			--append "console=ttyAMA0 quiet $cmdline"
+		;;
+	*)
+		echo unknown kernel image arch 1>&2; exit 1;;
+	esac
+}
+
+exitcode=1
+while read -r line
+do
+	echo "$line"
+	if grep -q '^quark-test exited with ' <<< "$line"; then
+		line="$(tr -d '\r' <<< "$line")"
+		exitcode="$(awk '{print $4}' <<< "$line")"
+	fi
+done < <(qemu)
+
+echo exited with "$exitcode"
+
+exit $((exitcode))

ktestall.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+truncate -s 0 result
+
+for k in /d/e/ebpf/kernel-images/debian/x86_64/* /d/kernel-images/*
+do
+	kname="$(basename "$k")"
+	echo testing "$kname"
+	if ./ktest.sh initramfs.gz "$k"; then
+		printf "%s: ok\n" "$kname" >> result
+	else
+		printf "%s: fail\n" "$kname" >> result
+	fi
+done