| commit | 3f5f9934e9696df4483298ac9dc10e39868733d6 | [log] [tgz] |
|---|---|---|
| author | Patrick Tjin <pattjin@google.com> | Fri Mar 23 11:36:43 2018 -0700 |
| committer | Tao Bao <tbao@google.com> | Sun Apr 22 22:04:21 2018 -0700 |
| tree | 65955b92af8e6b6b0dd07cf8ec6d754262e41c86 | |
| parent | 388f1458a5a63a4c6d0b603185911bd1226dea25 [diff] |
build_image: default extfs reserved size to 0 on RO partitions.
Defaults the reserved blocks for root to 0% on read only partitions
(system, system_other, vendor, oem). It also adds support for
explicitly specifying the extfs reserved percentage via
BOARD_{SYSTEM,VENDOR,OEM,PRODUCT}IMAGE_EXTFS_RSV_PCT.
This eventually translates down to the -m option for mkfs.
Removing the reserved space can save at least 5% from the default.
dumpe2fs system:
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
Bug: 75975085
Test: Build, verify reserved space is changed accordingly
Change-Id: I212d82741908b636db0d658a1c4847bbaadfd5ba
(cherry picked from commit 5ff758799c0ca8dda203107930d9cab2cc211b64)
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
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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.