Mark some tasks in extensible SDK as 'noexec'

For the SDK, what we are interested in is the sysroot part. So the only useful task is do_populate_sysroot. Other tasks like do_package don't need to run. So mark them as 'noexec' for SDK.

This would result in two benefits:
1) The size of extensible SDK is larged reduced. For example, extensible SDK for core-image-minimal is reduced from 1.8G to 793M.
2) The installation time is reduced as a lot of tasks are not run.

[YOCTO #7590]

Signed-off-by Chen Qi <[email protected]>

---
  meta/classes/populate_sdk_ext.bbclass | 12 +++++++++++-
  1 file changed, 11 insertions(+), 1 deletion(-)

meta/classes/populate_sdk_ext.bbclass +0 -0

index dc2c58e..6c265b8 100644

meta/classes/populate_sdk_ext.bbclass +9 -1

+    if os.path.exists(base_class_path):
+        with open(base_class_path, 'a') as f:
+            noexec_tasks = ['do_package', 'do_packagedata', 'do_package_qa', 'do_package_write_rpm',
+                            'do_package_write_ipk', 'do_package_write_deb', 'do_deploy', 'do_populate_lic',
+                            'do_rootfs']
+            for t in noexec_tasks:
+                f.write('%s[noexec] = "1"\n' % t)
+
      # Filter the locked signatures file to just the sstate tasks we are interested in
-    allowed_tasks = ['do_populate_lic', 'do_populate_sysroot', 'do_packagedata', 'do_package_write_ipk', 'do_package_write_rpm', 'do_package_write_deb', 'do_package_qa', 'do_deploy']
+    allowed_tasks = ['do_populate_sysroot']
      excluded_targets = d.getVar('SDK_TARGETS', True)
      lockedsigs_pruned = baseoutpath + '/conf/locked-sigs.inc'
      oe.copy_buildsystem.prune_lockedsigs(allowed_tasks,

Quoted 24 lines · Chen Qi

For the SDK, what we are interested in is the sysroot part. So the only useful task is do_populate_sysroot. Other tasks like do_package don't need to run. So mark them as 'noexec' for SDK.

This would result in two benefits:
1) The size of extensible SDK is larged reduced. For example, extensible

SDK for core-image-minimal is reduced from 1.8G to 793M.

2) The installation time is reduced as a lot of tasks are not run.

[YOCTO #7590]

Signed-off-by Chen Qi <[email protected]>

---

  meta/classes/populate_sdk_ext.bbclass | 12 +++++++++++-
  1 file changed, 11 insertions(+), 1 deletion(-)

(quoted diff) +0 -0

b/meta/classes/populate_sdk_ext.bbclass index dc2c58e..6c265b8 100644

meta/classes/populate_sdk_ext.bbclass python copy_buildsystem () { · line 147

Quoted 7 lines

meta/classes/populate_sdk_ext.bbclass +1 -0

@@ -141,8 +141,18 @@ python copy_buildsystem () {
 
      sigfile = d.getVar('WORKDIR', True) + '/locked-sigs.inc'
      oe.copy_buildsystem.generate_locked_sigs(sigfile, d)
 
+    # Mark tasks to be 'noexec' for the SDK as we only need the sysroot
 part +    base_class_path = os.path.join(baseoutpath, core_meta_subdir,
 'classes', 'base.bbclass')

Qi, I don't like the idea of modifying the source that is copied into the sdk. Also, this will continue to persist if the user ever wants to start generating images.

Ideally, we would only modify the behavior while setting up the sdk. And then the behavior afterward would remain as when using a regular bitbake workspace.

Quoted 36 lines · On Thursday 14 May 2015 09:49:50 Randy Witt wrote:

Quoted 24 lines · Chen Qi

For the SDK, what we are interested in is the sysroot part. So the only useful task is do_populate_sysroot. Other tasks like do_package don't need to run. So mark them as 'noexec' for SDK.

This would result in two benefits:
1) The size of extensible SDK is larged reduced. For example, extensible

SDK for core-image-minimal is reduced from 1.8G to 793M.

2) The installation time is reduced as a lot of tasks are not run.

[YOCTO #7590]

Signed-off-by Chen Qi <[email protected]>

---

   meta/classes/populate_sdk_ext.bbclass | 12 +++++++++++-
   1 file changed, 11 insertions(+), 1 deletion(-)

(quoted diff) +0 -0

b/meta/classes/populate_sdk_ext.bbclass index dc2c58e..6c265b8 100644

meta/classes/populate_sdk_ext.bbclass python copy_buildsystem () { · line 147

Quoted 7 lines

meta/classes/populate_sdk_ext.bbclass +1 -0

@@ -141,8 +141,18 @@ python copy_buildsystem () {
 
       sigfile = d.getVar('WORKDIR', True) + '/locked-sigs.inc'
       oe.copy_buildsystem.generate_locked_sigs(sigfile, d)
 
+    # Mark tasks to be 'noexec' for the SDK as we only need the sysroot
 part +    base_class_path = os.path.join(baseoutpath, core_meta_subdir,
 'classes', 'base.bbclass')

Qi, I don't like the idea of modifying the source that is copied into the sdk. Also, this will continue to persist if the user ever wants to start generating images.

Quoted 3 lines

Ideally, we would only modify the behavior while setting up the sdk. And then the behavior afterward would remain as when using a regular bitbake workspace.

Right. In order to fix this bug we really ought to only affect what happens at SDK install time. If we need to inject things into the configuration just for that execution, one way to do that would be to create a pre/post configuration file and pass that into the command that gets run with -r/-R.

Re allowed_tasks, don't you also need to change the recrdeptask value?

I'd also like to see this configurable at SDK construction time, so you can set a variable to provide and install the artifacts for the rest of the tasks if you want to.

Cheers,
Paul