-buildmode=pie
Various build tests are failing due to the error, and the newest androids will not be happy.

go_android_exec: adb shell mkdir -p /data/local/tmp/syscall.test-30583
go_android_exec: adb push /tmp/go-build252116514/syscall/_test/syscall.test /data/local/tmp/syscall.test-30583/syscall.test-30583-tmp
260 KB/s (3507788 bytes in 13.157s)
go_android_exec: adb shell cp '/data/local/tmp/syscall.test-30583/syscall.test-30583-tmp' '/data/local/tmp/syscall.test-30583/syscall.test-30583'
go_android_exec: adb shell rm '/data/local/tmp/syscall.test-30583/syscall.test-30583-tmp'
go_android_exec: adb shell export TMPDIR="/data/local/tmp/syscall.test-30583"; export GOROOT="/data/local/tmp/goroot"; export GOPATH="/data/local/tmp/gopath"; cd "/data/local/tmp/goroot/src/syscall"; '/data/local/tmp/syscall.test-30583/syscall.test-30583' -test.short=true -test.timeout=3m0s; echo -n exitcode=$?
WARNING: linker: /data/local/tmp/syscall.test-30583/syscall.test-30583 has text relocations. This is wasting memory and prevents security hardening. Please fix.
WARNING: linker: /data/local/tmp/syscall.test-30583/TestDeathSignal470352929/syscall.test-30583 has text relocations. This is wasting memory and prevents security hardening. Please fix.
--- FAIL: TestFcntlFlock (0.03s)
    syscall_unix_test.go:98: child process: "WARNING: linker: /data/local/tmp/syscall.test-30583/syscall.test-30583 has text relocations. This is wasting memory and prevents security hardening. Please fix.\n", 
--- FAIL: TestPassFD (0.03s)
    syscall_unix_test.go:166: child process: "WARNING: linker: /data/local/tmp/syscall.test-30583/syscall.test-30583 has text relocations. This is wasting memory and prevents security hardening. Please fix.\n", 
FAIL
exitcode=1go_android_exec: adb shell rm -rf /data/local/tmp/syscall.test-30583
FAIL    syscall 14.200s

@crawshaw