how to build aosp（android 11）with asan

[Wu Chen]

Hi all,

I'm trying to boot the pixel3 xl with asan build, logs and steps I followed are:

1) Download the source code

$ repo init -u https://android.googlesource.com/platform/manifest -b android-10.0.0_r15

$ repo sync

2) Build 

$ source build/envsetup.sh

$ lunch aosp_crosshatch-eng

$ make -j42

$ SANITIZE_TARGET=address make -j42

3) Flash to pixel3xl

$ fastboot flash userdata && fastboot flashall

Sending 'userdata' (17208 KB)                      OKAY [  0.610s]

Writing 'userdata'                                 OKAY [  0.366s]

Finished. Total time: 1.111s

--------------------------------------------

Bootloader Version...: b1c1-0.2-5672671

Baseband Version.....: g845-00086-191011-B-5933466

Serial Number........: 8B3Y0TEH6

--------------------------------------------

Checking 'product'                                 OKAY [  0.060s]

Setting current slot to 'a'                        OKAY [  0.219s]

Sending 'boot_a' (65536 KB)                        OKAY [  1.960s]

Writing 'boot_a'                                   OKAY [  0.676s]

Sending 'dtbo_a' (8192 KB)                         OKAY [  0.350s]

Writing 'dtbo_a'                                   OKAY [  0.106s]

Sending 'vbmeta_a' (4 KB)                          OKAY [  0.120s]

Writing 'vbmeta_a'                                 OKAY [  0.063s]

Rebooting into fastboot                            OKAY [  0.060s]

< waiting for any device >

fastboot: error: Failed to boot into userspace fastboot; one or more components might be unbootable.

Please help me on how to resolve these errors?

Thanks!