[oe-commits] Dmitry Eremin-Solenikov : initramfs-debug: add simple init script for debugging
git at git.openembedded.org
git at git.openembedded.org
Mon Apr 13 11:04:24 UTC 2015
Module: meta-openembedded.git
Branch: master
Commit: a94da017797e82d62484ffbced93108ce5830de1
URL: http://git.openembedded.org/?p=meta-openembedded.git&a=commit;h=a94da017797e82d62484ffbced93108ce5830de1
Author: Dmitry Eremin-Solenikov <dmitry_eremin at mentor.com>
Date: Thu Apr 2 18:23:01 2015 +0300
initramfs-debug: add simple init script for debugging
Add a tiny simple debug script that will mount all available virtual
file systems and then execute a shell.
Signed-off-by: Dmitry Eremin-Solenikov <dmitry_eremin at mentor.com>
Signed-off-by: Martin Jansa <Martin.Jansa at gmail.com>
---
.../recipes-bsp/initrdscripts/files/init-debug.sh | 31 ++++++++++++++++++++++
.../initrdscripts/initramfs-debug_1.0.bb | 14 ++++++++++
2 files changed, 45 insertions(+)
diff --git a/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh b/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh
new file mode 100644
index 0000000..7edbd70
--- /dev/null
+++ b/meta-initramfs/recipes-bsp/initrdscripts/files/init-debug.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+
+do_mount_fs() {
+ grep -q "$1" /proc/filesystems || return
+ test -d "$2" || mkdir -p "$2"
+ mount -t "$1" "$1" "$2"
+}
+
+do_mknod() {
+ test -e "$1" || mknod "$1" "$2" "$3" "$4"
+}
+
+mkdir -p /proc
+mount -t proc proc /proc
+
+do_mount_fs sysfs /sys
+do_mount_fs debugfs /sys/kernel/debug
+do_mount_fs devtmpfs /dev
+do_mount_fs devpts /dev/pts
+do_mount_fs tmpfs /dev/shm
+
+mkdir -p /run
+mkdir -p /var/run
+
+do_mknod /dev/console c 5 1
+do_mknod /dev/null c 1 3
+do_mknod /dev/zero c 1 5
+
+exec sh </dev/console >/dev/console 2>/dev/console
diff --git a/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb b/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb
new file mode 100644
index 0000000..b7defff
--- /dev/null
+++ b/meta-initramfs/recipes-bsp/initrdscripts/initramfs-debug_1.0.bb
@@ -0,0 +1,14 @@
+SUMMARY = "Extremely basic live image init script"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+SRC_URI = "file://init-debug.sh"
+
+S = "${WORKDIR}"
+
+do_install() {
+ install -m 0755 ${WORKDIR}/init-debug.sh ${D}/init
+}
+
+inherit allarch
+
+FILES_${PN} += " /init "
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