kernel: precise trigger timing of post-fs-data (#118)

* kernel: add report_event cmd

* ksud: report event

* kernel: trigger on_post_fs_data

* ksud: comment unused code

* [skip ci] run clang-format

Signed-off-by: Ylarod <me@ylarod.cn>

* ci: use custom key to sign official bootimgs

* format ksud

* reject non root

* remove

Signed-off-by: Ylarod <me@ylarod.cn>

userspace/ksud/Cargo.toml

@@ -22,6 +22,7 @@ regex = "1.5.4"
 encoding = "0.2.33"
 retry = "2.0.0"
 humansize = "2.0.0"
+libc = "0.2"
 
 [profile.release]
 strip = true