HOWTO: compile mkbootimg/mkbootfs

gistfile1.bash

get Android source code: http://source.android.com/source/downloading.html

$ cd /path/to/android-src
$ cd system/core/libmincrypt/
$ gcc -c *.c -I../include
$ ar rcs libmincrypt.a  *.o
$ cd ../mkbootimg
$ gcc mkbootimg.c -o mkbootimg -I../include ../libmincrypt/libmincrypt.a
$ cd ../cpio
$ gcc mkbootfs.c  -o mkbootfs -I../include

copy system/core/mkbootimg/mkbootimg, system/core/cpio/mkbootfs to a directory in your path.

i do the same thing .but i don't need the hold android source code.
i just need the system_core

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I'd rather do this at system/core(it's one line!):
gcc -o /tmp/mkbootimg libmincrypt/.c mkbootimg/mkbootimg.c -Iinclude
gcc -o /tmp/unpackbootimg libmincrypt/.c mkbootimg/unpackbootimg.c -Iinclude

mkbootimg is now a Python script.

https://android.googlesource.com/platform/system/core/+/ad6ec0c7fe8b5cd80dff619f1d3b6067db85110a
https://android.googlesource.com/platform/system/core/+/2aa78ce625f5eef6913fca69cb8b93b25871ebf1