如何在Yocto的swupdate图像配方中执行脚本？

Question

我无法在create_signed_swu.sh的配方（panther2-swu.bb）中执行shell脚本（inherit swupdate），如果我删除inherit swupdate，我看到do_compile被编译并且脚本执行成功。这是panther2-swu.bb食谱：

DESCRIPTION = "Building swupdate image (.swu ) for panther2  board"

LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"

inherit swupdate
FILESEXTRAPATHS_append := "${THISDIR}/../../../../build/tmp/deploy/images/panther2/"

SRC_URI = "file://sw-description \
          file://postinstall_swu.sh \
          file://bzImage \
          file://create_signed_swu.sh \
          file://priv.pem \
          file://passphrase \
        "
do_compile() {
        ${WORKDIR}/create_signed_swu.sh
}
DEPENDS = "openssl-native"

这是create_signed_swu.sh：

#!/bin/bash

IMAGES="bzImage panther2-usb-panther2.ext4"
FILES="sw-description sw-description.sig postinstall_swu.sh $IMAGES"
echo "Executing swu signing script..."

cp ../sw-description .
cp ../postinstall_swu.sh .
cp ../../../../../deploy/images/panther2/bzImage .
cp ../../../../../deploy/images/panther2/panther2-usb-panther2.ext4 .

read -d ' ' SHA_ROOTFS < <(sha256sum panther2-usb-panther2.ext4)
read -d ' ' SHA_BZIMAGE < <(sha256sum bzImage)
read -d ' ' SHA_POSTINSTALL < <(sha256sum postinstall_swu.sh)

sed -i ':a;N;$!ba; s/sha256 = "[0-9A-Za-z]*"/sha256 = '"\"${SHA_ROOTFS}"\"'/1' sw-description
sed -i ':a;N;$!ba; s/sha256 = "[0-9A-Za-z]*"/sha256 = '"\"${SHA_BZIMAGE}"\"'/2' sw-description
sed -i ':a;N;$!ba; s/sha256 = "[0-9A-Za-z]*"/sha256 = '"\"${SHA_POSTINSTALL}"\"'/3' sw-description

openssl dgst -sha256 -sign ../priv.pem -passin file:../passphrase sw-description > sw-description.sig

for i in $FILES;do
        echo $i;done | cpio -ov -H crc >  panther2-swu-$USER-devbuild.swu

cp panther2-swu-$USER-devbuild.swu ../../../../../deploy/images/panther2

rm -f sw-description
rm -f postinstall_swu.sh
rm -f sw-description.sig
rm -f bzImage
rm -f panther2-usb-panther2.ext4
rm -f panther2-swu-$USER-devbuild.swu 

我也尝试了qazxsw poi，但它也没有执行我的脚本。

任何帮助真的很感激，提前谢谢...... !!!

Answer 1

如果删除ROOTFS_POSTPROCESS_COMMAND会使do_compile执行并启动脚本，则意味着类swupdate.bbclass不执行do_compile任务。这个班肯定有这条线：

inherit swupdate

这意味着根本不执行do_compile。

您可以选择两种解决方案：

使用某些任务的前置/附加：

前置/附加您的配方任务，该任务旨在将脚本启动到现有任务，如下所示：

假设启动了do_configure：

do_compile[noexec] = "1"

这将在do_configure结束时启动您的脚本。

创建自己的任务：

假设你想在do_build任务之前启动你的脚本

do_configure_append() 
{
 ${WORKDIR}/create_signed_swu.sh
}