refact: rust backtrace logs (#13467)

Signed-off-by: fufesou <linlong1266@gmail.com>

src/common.rs

@@ -115,50 +115,6 @@ pub fn global_init() -> bool {
             crate::server::wayland::init();
         }
     }
-    // Install panic hook to log backtrace on all platforms
-    std::env::set_var("RUST_BACKTRACE", "1");
-    std::panic::set_hook(Box::new(|info| {
-        let thread = std::thread::current().name().unwrap_or("unnamed");
-        let location = info
-            .location()
-            .map(|l| format!("{}:{}:{}", l.file(), l.line(), l.column()))
-            .unwrap_or_else(|| "unknown".into());
-        let msg = if let Some(s) = info.payload().downcast_ref::<&str>() {
-            *s
-        } else if let Some(s) = info.payload().downcast_ref::<String>() {
-            s.as_str()
-        } else {
-            "Box<Any>"
-        };
-        let bt = std::backtrace::Backtrace::force_capture();
-        let out = format!("thread '{}' panicked at '{}', {}\nBacktrace:\n{bt:?}", thread, msg, location);
-        eprintln!("{}", out);
-        log::error!("{}", out);
-    }));
-    // Native crash handlers
-    #[cfg(unix)]
-    unsafe {
-        extern "C" fn crash_signal_handler(sig: libc::c_int) {
-            let bt = std::backtrace::Backtrace::force_capture();
-            eprintln!("native crash signal {}\nBacktrace:\n{bt:?}", sig);
-            log::error!("native crash signal {}\nBacktrace:\n{bt:?}", sig);
-        }
-        for &s in &[libc::SIGSEGV, libc::SIGABRT, libc::SIGILL, libc::SIGFPE, libc::SIGBUS] {
-            libc::signal(s, crash_signal_handler as usize);
-        }
-    }
-    #[cfg(windows)]
-    unsafe {
-        use winapi::um::{errhandlingapi::SetUnhandledExceptionFilter, minwinbase::EXCEPTION_POINTERS};
-        extern "system" fn unhandled_exception_filter(_: *mut EXCEPTION_POINTERS) -> i32 {
-            let bt = std::backtrace::Backtrace::force_capture();
-            eprintln!("native unhandled exception\nBacktrace:\n{bt:?}");
-            log::error!("native unhandled exception\nBacktrace:\n{bt:?}");
-            // EXCEPTION_EXECUTE_HANDLER = 1
-            1
-        }
-        SetUnhandledExceptionFilter(Some(unhandled_exception_filter));
-    }
     true
 }
 

src/core_main.rs

@@ -29,6 +29,9 @@ macro_rules! my_println{
 /// If it returns [`Some`], then the process will continue, and flutter gui will be started.
 #[cfg(not(any(target_os = "android", target_os = "ios")))]
 pub fn core_main() -> Option<Vec<String>> {
+    if !crate::common::global_init() {
+        return None;
+    }
     crate::load_custom_client();
     #[cfg(windows)]
     if !crate::platform::windows::bootstrap() {

src/flutter_ffi.rs

@@ -70,6 +70,10 @@ fn initialize(app_dir: &str, custom_client_config: &str) {
         init_from_env(Env::default().filter_or(DEFAULT_FILTER_ENV, "debug"));
         crate::common::test_nat_type();
     }
+    #[cfg(any(target_os = "android", target_os = "ios"))]
+    {
+        let _ = crate::common::global_init();
+    }
     #[cfg(not(any(target_os = "android", target_os = "ios")))]
     {
         // core_main's init_log does not work for flutter since it is only applied to its load_library in main.c

src/main.rs

@@ -23,9 +23,6 @@ fn main() {
     feature = "flutter"
 )))]
 fn main() {
-    if !common::global_init() {
-        return;
-    }
     #[cfg(all(windows, not(feature = "inline")))]
     unsafe {
         winapi::um::shellscalingapi::SetProcessDpiAwareness(2);