pa-fazil
/
android_packages_modules_Virtualization
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Print backtrace of microdroid_manager to kmsg 

To track any possible bugs on microdroid_manager.

Bug: 258760809
Test: intentionally crash microdroid_manager and see console
Change-Id: I2359e59270a1c6c5efab2a6cb1e0727bb3c5743e
This commit is contained in:
Inseob Kim 2022-11-14 18:13:23 +09:00
parent 2acbb01203
commit 7ff121c0a5
2 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
microdroid_manager/microdroid_manager.rc
View File

@ -1,6 +1,9 @@
service microdroid_manager /system/bin/microdroid_manager service microdroid_manager /system/bin/microdroid_manager
disabled disabled
# print android log to kmsg
file /dev/kmsg w file /dev/kmsg w
# redirect stdout/stderr to kmsg_debug
stdio_to_kmsg
setenv RUST_LOG info setenv RUST_LOG info
# TODO(jooyung) remove this when microdroid_manager becomes a daemon # TODO(jooyung) remove this when microdroid_manager becomes a daemon
oneshot oneshot

6
microdroid_manager/src/main.rs
View File

@ -47,6 +47,7 @@ use rustutils::system_properties;
use rustutils::system_properties::PropertyWatcher; use rustutils::system_properties::PropertyWatcher;
use std::borrow::Cow::{Borrowed, Owned}; use std::borrow::Cow::{Borrowed, Owned};
use std::convert::TryInto; use std::convert::TryInto;
use std::env;
use std::fs::{self, create_dir, File, OpenOptions}; use std::fs::{self, create_dir, File, OpenOptions};
use std::io::Write; use std::io::Write;
use std::os::unix::io::{FromRawFd, IntoRawFd}; use std::os::unix::io::{FromRawFd, IntoRawFd};
@ -152,6 +153,11 @@ fn get_vms_rpc_binder() -> Result<Strong<dyn IVirtualMachineService>> {
} }
fn main() -> Result<()> { fn main() -> Result<()> {
// If debuggable, print full backtrace to console log with stdio_to_kmsg
if system_properties::read_bool(APP_DEBUGGABLE_PROP, true)? {
env::set_var("RUST_BACKTRACE", "full");
}
scopeguard::defer! { scopeguard::defer! {
info!("Shutting down..."); info!("Shutting down...");
if let Err(e) = system_properties::write("sys.powerctl", "shutdown") { if let Err(e) = system_properties::write("sys.powerctl", "shutdown") {