| commit | 9b56140cb1a4a296bb8b97404a6c4de21e207768 | [log] [tgz] |
|---|---|---|
| author | Bowgo Tsai <bowgotsai@google.com> | Fri Jul 17 14:39:46 2020 +0800 |
| committer | Bowgo Tsai <bowgotsai@google.com> | Fri Jul 17 09:41:40 2020 +0000 |
| tree | de8f8252dcf6e5308380154ba1a99294e55769cc | |
| parent | ac2050ff137fb192104fdc74ef711adffef15ffc [diff] |
Adding vbmeta_system.img and vbmeta_vendor.img to droidcore
In the concept of system/vendor build split, usually vbmeta.img
won't be built in a system-only build and/or a vendor-only build.
Instead, vbmeta.img will be generated later when combining system
and vendor artifacts.
- system-only artifacts: system.img, system_ext.img,
product.img and vbmeta_system.img
- vendor-only artifacts: boot.img, vendor.img, odm.img and
vbmeta_vendor.img
PRODUCT_BUILD_VBMETA_IMAGE can be used to disable building vbmeta.img.
However, it also disables vbmeta_system.img and vbmeta_vendor.img
generation because both are only depended by vbmeta.img.
This change adds both vbmeta_[system|vendor].img into droidcore,
so they will be built even if PRODUCT_BUILD_VBMETA_IMAGE is set
to false, when we're building system-only artifacts or vendor-only
artifacts.
Bug: 161425613
Test: sets PRODUCT_BUILD_VBMETA_IMAGE := false then build, checks
vbmeta_system.img is generated but vbmeta.img is not.
Change-Id: I39d9819da4704195b0e1ee58d13c848ae97d474a
This is the Makefile-based portion of the Android Build System.
For documentation on how to run a build, see Usage.txt
For a list of behavioral changes useful for Android.mk writers see Changes.md
For an outdated reference on Android.mk files, see build-system.html. Our Android.mk files look similar, but are entirely different from the Android.mk files used by the NDK build system. When searching for documentation elsewhere, ensure that it is for the platform build system -- most are not.
This Makefile-based system is in the process of being replaced with Soong, a new build system written in Go. During the transition, all of these makefiles are read by Kati, and generate a ninja file instead of being executed directly. That's combined with a ninja file read by Soong so that the build graph of the two systems can be combined and run as one.