From 9105469c3b8ca63af7c0268e26d4e355e97ee0e0 Mon Sep 17 00:00:00 2001
From: able <abl3theabove@gmail.com>
Date: Sun, 17 Sep 2023 17:13:23 -0500
Subject: [PATCH] Arm now logs to the framebuffer

---
 kernel/src/arch/aarch64/logging.rs |  8 ++++---
 kernel/src/arch/x86_64/logging.rs  | 29 +------------------------
 kernel/src/kmain.rs                |  2 +-
 kernel/src/logger.rs               | 35 +++++++++++++++++++++++++++++-
 4 files changed, 41 insertions(+), 33 deletions(-)

diff --git a/kernel/src/arch/aarch64/logging.rs b/kernel/src/arch/aarch64/logging.rs
index e52ecf7f..5db9bc05 100644
--- a/kernel/src/arch/aarch64/logging.rs
+++ b/kernel/src/arch/aarch64/logging.rs
@@ -1,5 +1,4 @@
-use {core::fmt::Write, spin::Mutex};
-
+use {crate::logger::TERMINAL_LOGGER, core::fmt::Write, spin::Mutex};
 const SERIAL_CONSOLE: Mutex<SerialConsole> = Mutex::new(SerialConsole {
     uart: 0x09000000 as *mut u8,
 });
@@ -19,5 +18,8 @@ impl core::fmt::Write for SerialConsole {
 }
 
 pub fn log(args: core::fmt::Arguments<'_>) -> core::fmt::Result {
-    SERIAL_CONSOLE.lock().write_fmt(args)
+    SERIAL_CONSOLE.lock().write_fmt(args)?;
+    TERMINAL_LOGGER.lock().write_fmt(args)?;
+
+    Ok(())
 }
diff --git a/kernel/src/arch/x86_64/logging.rs b/kernel/src/arch/x86_64/logging.rs
index ec1e0126..5652b255 100644
--- a/kernel/src/arch/x86_64/logging.rs
+++ b/kernel/src/arch/x86_64/logging.rs
@@ -1,6 +1,5 @@
 //! Logging (as in terms of console / serial output)
 #![allow(deprecated)]
-
 use {
     core::fmt::Write,
     limine::{TerminalRequest, TerminalResponse},
@@ -9,11 +8,10 @@ use {
 };
 
 pub static SERIAL_CONSOLE: Mutex<SerialPort> = Mutex::new(unsafe { SerialPort::new(0x3F8) });
-static TERMINAL_LOGGER: Lazy<Mutex<TermLogger>> = Lazy::new(|| Mutex::new(TermLogger::new()));
 
 pub fn init() {
     SERIAL_CONSOLE.lock().init();
-    Lazy::force(&TERMINAL_LOGGER);
+    // Lazy::force(&TERMINAL_LOGGER);
 }
 
 pub fn log(args: core::fmt::Arguments<'_>) -> core::fmt::Result {
@@ -22,28 +20,3 @@ pub fn log(args: core::fmt::Arguments<'_>) -> core::fmt::Result {
         SERIAL_CONSOLE.lock().write_fmt(args)
     })
 }
-
-struct TermLogger(&'static TerminalResponse);
-unsafe impl Send for TermLogger {}
-impl TermLogger {
-    pub fn new() -> Self {
-        static TERM_REQ: TerminalRequest = TerminalRequest::new(0);
-        Self(
-            TERM_REQ
-                .get_response()
-                .get()
-                .expect("failed to get terminal response"),
-        )
-    }
-}
-
-impl Write for TermLogger {
-    fn write_str(&mut self, s: &str) -> core::fmt::Result {
-        if let (Some(w), ts) = (self.0.write(), self.0.terminals()) {
-            for term in ts {
-                w(term, s);
-            }
-        }
-        Ok(())
-    }
-}
diff --git a/kernel/src/kmain.rs b/kernel/src/kmain.rs
index a2e81093..53e27868 100644
--- a/kernel/src/kmain.rs
+++ b/kernel/src/kmain.rs
@@ -34,7 +34,7 @@ pub fn kmain(cmdline: &str, boot_modules: BootModules) -> ! {
     let dt = DEVICE_TREE.lock();
 
     // TODO(Able): This line causes a deadlock
-    // info!("Device Tree: {}", dt);
+    info!("Device Tree: {}", dt);
 
     info!("Boot complete. Moving to init_system");
 
diff --git a/kernel/src/logger.rs b/kernel/src/logger.rs
index 486a3688..3431775f 100644
--- a/kernel/src/logger.rs
+++ b/kernel/src/logger.rs
@@ -1,10 +1,18 @@
 // TODO: Add a logger api with logger levels and various outputs
+pub static TERMINAL_LOGGER: Lazy<Mutex<TermLogger>> = Lazy::new(|| Mutex::new(TermLogger::new()));
 
-use log::{Level, SetLoggerError};
+use {
+    limine::{TerminalRequest, TerminalResponse},
+    log::{Level, SetLoggerError},
+    spin::{lazy::Lazy, mutex::Mutex},
+};
 
 pub fn init() -> Result<(), SetLoggerError> {
     log::set_logger(&crate::logger::Logger)?;
     log::set_max_level(log::LevelFilter::Debug);
+
+    Lazy::force(&TERMINAL_LOGGER);
+
     Ok(())
 }
 
@@ -34,3 +42,28 @@ impl log::Log for Logger {
 
     fn flush(&self) {}
 }
+
+pub struct TermLogger(&'static TerminalResponse);
+unsafe impl Send for TermLogger {}
+impl TermLogger {
+    pub fn new() -> Self {
+        static TERM_REQ: TerminalRequest = TerminalRequest::new(0);
+        Self(
+            TERM_REQ
+                .get_response()
+                .get()
+                .expect("failed to get terminal response"),
+        )
+    }
+}
+
+impl core::fmt::Write for TermLogger {
+    fn write_str(&mut self, s: &str) -> core::fmt::Result {
+        if let (Some(w), ts) = (self.0.write(), self.0.terminals()) {
+            for term in ts {
+                w(term, s);
+            }
+        }
+        Ok(())
+    }
+}