populate_sdk命令无法满足我知道存在的nativesdk包

Question

我有一个生成-native和nativesdk- package的方法，但是当我尝试填充SDK时，我得到了以下错误消息：

~/myproj/build$ bitbake -c populate_sdk core-image-minimal
... lots of error messages ...
Collected errors:
 * opkg_prepare_url_for_install: Couldn't find anything to satisfy 'nativesdk-myapp'.

但是，我可以毫不费力地构建这个包：

~/myproj/build$ bitbake myapp myapp-native nativesdk-myapp

有问题的食谱使用BBCLASSEXTEND来添加额外的包。它非常简单:只是一个标准的cmake配方，它更改了几个配置参数，以省略本机和nativesdk构建中的单元测试：

inherit cmake

SUMMARY = "My Application"
SRC_URI = "git://git@bitbucket.mydomain.com/project/myapp"
S = "${WORKDIR}/git/"

DEPENDS += "gnutls protobuf protobuf-native dlt-daemon"
DEPENDS_append_class-target = " gtest"

EXTRA_OECMAKE_append_class-native = " -DAPP_FEATURE_TEST=Off"
EXTRA_OECMAKE_append_class-nativesdk = " -DAPP_FEATURE_TEST=Off"

BBCLASSEXTEND = "native nativesdk"

最后，在我的发行版文件中有以下几行：

TOOLCHAIN_TARGET_TASK_append += " myapp-dev nativesdk-myapp"

我可以很好地构建nativesdk-myapp包，但是由于某些原因，populate_sdk目标找不到它。

Answer 1

问题出在发行版文件中。应该是这样的：

TOOLCHAIN_TARGET_TASK_append += " myapp-dev"

TOOLCHAIN_HOST_TASK_append += " nativesdk-myapp"

TOOLCHAIN_TARGET_TASK是进入目标sysroot的SDK包，在本例中是SoC上的ARM。

TOOLCHAIN_HOST_TASK是进入主机sysroot的SDK包，即x86_64。

Yocto非常明智地抱怨说，它没有针对ARM/Jacinto的nativesdk-myapp包。