* [RFC] glibc kernel version
[not found] <565498D8.4050103@ni.com>
@ 2015-11-24 17:29 ` Jonathan David
2015-11-24 19:21 ` Khem Raj
0 siblings, 1 reply; 2+ messages in thread
From: Jonathan David @ 2015-11-24 17:29 UTC (permalink / raw)
To: openembedded-core
The change below only replaces the kernel version checked by the shar
file, so that machines running on the 2.6 kernel can unpack an SDK
archive; however, the SDK will be unusable if the bundled glibc requires
a later kernel than what is installed. glibc's minimal kernel version is
determined by OLDEST_KERNEL, which from testing does not appear to be
influenced by SDK_OLDEST_KERNEL.
For example, setting OLDEST_KERNEL=3.14 and SDK_OLDEST_KERNEL=2.6 still
results in an unusable SDK on systems running [2.6, 3.14) kernels.
Is this a problem that many can expect to encounter, or is bumping the
version of glibc beyond 2.6 uncommon?
commit: 522ba4c51fff53566678b2689d0d63c393e417b3
populate_sdk_base: Fix aarch64 OLDEST_KERNEL sdk issues
--- a/meta/classes/populate_sdk_base.bbclass
+++ b/meta/classes/populate_sdk_base.bbclass
@@ -81,6 +81,11 @@ python write_host_sdk_manifest () {
POPULATE_SDK_POST_TARGET_COMMAND_append = " write_target_sdk_manifest ; "
POPULATE_SDK_POST_HOST_COMMAND_append = " write_host_sdk_manifest; "
+# Some archs override this, we need the nativesdk version
+# turns out this is hard to get from the datastore due to
TRANSLATED_TARGET_ARCH
+# manipulation.
+SDK_OLDEST_KERNEL = "2.6.32"
+
fakeroot python do_populate_sdk() {
from oe.sdk import populate_sdk
from oe.manifest import create_manifest, Manifest
@@ -156,7 +161,7 @@ EOF
sed -i -e 's#@SDK_ARCH@#${SDK_ARCH}#g' \
-e 's#@SDKPATH@#${SDKPATH}#g' \
-e 's#@SDKEXTPATH@#${SDKEXTPATH}#g' \
- -e 's#@OLDEST_KERNEL@#${OLDEST_KERNEL}#g' \
+ -e 's#@OLDEST_KERNEL@#${SDK_OLDEST_KERNEL}#g' \
-e 's#@REAL_MULTIMACH_TARGET_SYS@#${REAL_MULTIMACH_TARGET_SYS}#g' \
-e 's#@SDK_TITLE@#${SDK_TITLE}#g' \
-e 's#@SDK_VERSION@#${SDK_VERSION}#g' \
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [RFC] glibc kernel version
2015-11-24 17:29 ` [RFC] glibc kernel version Jonathan David
@ 2015-11-24 19:21 ` Khem Raj
0 siblings, 0 replies; 2+ messages in thread
From: Khem Raj @ 2015-11-24 19:21 UTC (permalink / raw)
To: Jonathan David; +Cc: openembedded-core
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> On Nov 24, 2015, at 9:29 AM, Jonathan David <jonathan.david@ni.com> wrote:
>
> The change below only replaces the kernel version checked by the shar
> file, so that machines running on the 2.6 kernel can unpack an SDK
> archive; however, the SDK will be unusable if the bundled glibc requires a later kernel than what is installed. glibc's minimal kernel version is determined by OLDEST_KERNEL, which from testing does not appear to be influenced by SDK_OLDEST_KERNEL.
>
> For example, setting OLDEST_KERNEL=3.14 and SDK_OLDEST_KERNEL=2.6 still results in an unusable SDK on systems running [2.6, 3.14) kernels.
>
> Is this a problem that many can expect to encounter, or is bumping the version of glibc beyond 2.6 uncommon?
We need to compile nativesdk components as well as nativesdk-glibc using this defined to 2.6.32 as well. otherwise it will have wrong assumptions about
system calls available to it during build ( 3.14 ) vs at runtime ( 2.6.32 ) and many nativesdk programs could fail to run properly. Please note that 2.22 needs 2.6.32
can’t go below that.
>
>
> commit: 522ba4c51fff53566678b2689d0d63c393e417b3
> populate_sdk_base: Fix aarch64 OLDEST_KERNEL sdk issues
>
> --- a/meta/classes/populate_sdk_base.bbclass
> +++ b/meta/classes/populate_sdk_base.bbclass
> @@ -81,6 +81,11 @@ python write_host_sdk_manifest () {
> POPULATE_SDK_POST_TARGET_COMMAND_append = " write_target_sdk_manifest ; "
> POPULATE_SDK_POST_HOST_COMMAND_append = " write_host_sdk_manifest; "
>
> +# Some archs override this, we need the nativesdk version
> +# turns out this is hard to get from the datastore due to
> TRANSLATED_TARGET_ARCH
> +# manipulation.
> +SDK_OLDEST_KERNEL = "2.6.32"
> +
> fakeroot python do_populate_sdk() {
> from oe.sdk import populate_sdk
> from oe.manifest import create_manifest, Manifest
> @@ -156,7 +161,7 @@ EOF
> sed -i -e 's#@SDK_ARCH@#${SDK_ARCH}#g' \
> -e 's#@SDKPATH@#${SDKPATH}#g' \
> -e 's#@SDKEXTPATH@#${SDKEXTPATH}#g' \
> - -e 's#@OLDEST_KERNEL@#${OLDEST_KERNEL}#g' \
> + -e 's#@OLDEST_KERNEL@#${SDK_OLDEST_KERNEL}#g' \
> -e 's#@REAL_MULTIMACH_TARGET_SYS@#${REAL_MULTIMACH_TARGET_SYS}#g' \
> -e 's#@SDK_TITLE@#${SDK_TITLE}#g' \
> -e 's#@SDK_VERSION@#${SDK_VERSION}#g' \
>
>
> --
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core@lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core
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2015-11-24 17:29 ` [RFC] glibc kernel version Jonathan David
2015-11-24 19:21 ` Khem Raj
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