25ab998d82
When computing the data offset of an entry in zip file, we used length of extra field from central directory. That is correct most of the time but wrong if the extra field in central directory has different length than the one in local file directory. Since python's zipfile doesn't provide an API to access local file header, we need to parse local file header ourselves and extract length of extra field. An incorrect offset will cause magic mismatch error from update_engine, as update_engine expects to find uncompressed payload at the recorded offset. Test: th, partner verification Bug: 191443484 Change-Id: Id670cd79b0bd65adffaaa5224ae4f8065d66b358
Android Make Build System
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For an outdated reference on Android.mk files, see build-system.html.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.