Remove unneccessary debug, increase kernel heap to 64mb, add a global

build_and_run script, fix build.rs sometimes using the wrong
architecture, add badapple ELF and change default font size to 1 for it
to work, improve framebuffer errors, remove unnecessary commands from
make and improve debug filtering

kernel/build.rs

@@ -3,15 +3,25 @@ use std::fs;
 use std::path::PathBuf;
 
 fn main() {
-    let arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
+    let arch = std::env::var("TARGET")
+        .unwrap_or_else(|_| {
+            std::env::var("CARGO_CFG_TARGET_ARCH").unwrap_or_else(|_| "x86_64".to_string())
+        })
+        .split('-')
+        .next()
+        .unwrap()
+        .to_string();
 
     let timer_frequency_hz = env::var("TIMER_FREQUENCY_HZ").unwrap_or_else(|_| "1000".to_string());
-    let karch = env::var("KARCH").unwrap_or_else(|_| "x86_64".to_string());
+    let karch = env::var("KARCH").unwrap_or_else(|_| arch.clone());
 
     let out_dir = PathBuf::from("src");
     fs::write(
         out_dir.join("config.rs"),
-        format!("pub const TIMER_FREQUENCY_HZ: usize = {timer_frequency_hz};\npub const KARCH: &str = \"{karch}\";"),
+        format!(
+            "pub const TIMER_FREQUENCY_HZ: usize = {timer_frequency_hz};\n\
+            pub const KARCH: &str = \"{karch}\";"
+        ),
     )
     .unwrap();
 
@@ -19,7 +29,13 @@ fn main() {
 
     fs::write(
         out_dir.join("assets.rs"),
-        format!("pub static INIT_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/init\");\npub static DOOM_WAD: &[u8] = include_bytes!(\"../../../../../assets/doom1.wad\");\npub static DOOM_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/doomgeneric\");\npub static HELLOWORLD_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/helloworld.elf\");"),
+        format!(
+            "pub static INIT_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/init\");\n\
+            pub static DOOM_WAD: &[u8] = include_bytes!(\"../../../../../assets/doom1.wad\");\n\
+            pub static DOOM_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/doomgeneric\");\n\
+            pub static HELLOWORLD_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/helloworld.elf\");\n\
+            pub static BADAPPLE_ELF: &[u8] = include_bytes!(\"../../../../../assets/{karch}/badapple\");"
+        ),
     )
     .unwrap();
 

kernel/src/arch/aarch64/paging.rs

@@ -1,12 +1,8 @@
 use core::sync::atomic::Ordering;
 
-use crate::{
-    arch::{
-        aarch64::init::KERNEL_STACK,
-        arch::{HHDM_OFFSET, XunilFrameAllocator, safe_lock, serial_print},
-    },
-    driver::graphics::framebuffer::USER_FB_BASE,
-    util::U64Buf,
+use crate::arch::{
+    aarch64::init::KERNEL_STACK,
+    arch::{HHDM_OFFSET, XunilFrameAllocator, safe_lock},
 };
 use limine::{
     memory_map::EntryType,

kernel/src/arch/syscall.rs

@@ -455,11 +455,6 @@ pub unsafe extern "C" fn syscall_dispatch(
 ) -> isize {
     #[cfg(target_arch = "x86_64")]
     interrupts::enable();
-    // if num != 1 {
-    //     serial_print("syscall num=");
-    //     serial_print(U64Buf::new(num as u64).as_str());
-    //     serial_print("\n");
-    // }
 
     set_reschedule(match num {
         BRK => false,

kernel/src/arch/x86_64/heap.rs

@@ -9,7 +9,7 @@ use x86_64::structures::paging::{
 pub static ALLOCATOR: Locked<LinkedListAllocator> = Locked::new(LinkedListAllocator::new());
 
 pub const HEAP_START: usize = 0xffffffff90000000;
-pub const HEAP_SIZE: usize = 4 * 1024 * 1024; // 64 MiB
+pub const HEAP_SIZE: usize = 64 * 1024 * 1024; // 64 MiB
 
 pub fn init_heap(mapper: &mut OffsetPageTable) -> Result<(), MapToError<Size4KiB>> {
     let page_count = HEAP_SIZE / 4096;

kernel/src/arch/x86_64/paging.rs

@@ -8,7 +8,10 @@ use x86_64::{
     },
 };
 
-use crate::arch::arch::{HHDM_OFFSET, XunilFrameAllocator};
+use crate::{
+    arch::arch::{HHDM_OFFSET, XunilFrameAllocator, serial_print},
+    println,
+};
 
 unsafe fn active_level_4_table(mem_offset: VirtAddr) -> &'static mut PageTable {
     let (level_4_table, _) = Cr3::read();

kernel/src/driver/io/fs/assets.rs

@@ -1,4 +1,5 @@
-pub static INIT_ELF: &[u8] = include_bytes!("../../../../../assets/aarch64/init");
+pub static INIT_ELF: &[u8] = include_bytes!("../../../../../assets/x86_64/init");
 pub static DOOM_WAD: &[u8] = include_bytes!("../../../../../assets/doom1.wad");
-pub static DOOM_ELF: &[u8] = include_bytes!("../../../../../assets/aarch64/doomgeneric");
-pub static HELLOWORLD_ELF: &[u8] = include_bytes!("../../../../../assets/aarch64/helloworld.elf");
+pub static DOOM_ELF: &[u8] = include_bytes!("../../../../../assets/x86_64/doomgeneric");
+pub static HELLOWORLD_ELF: &[u8] = include_bytes!("../../../../../assets/x86_64/helloworld.elf");
+pub static BADAPPLE_ELF: &[u8] = include_bytes!("../../../../../assets/x86_64/badapple");

kernel/src/driver/io/fs/vfs.rs

@@ -48,6 +48,10 @@ static FILES: &[FakeFileEntry] = &[
         name: "helloworld.elf",
         data: HELLOWORLD_ELF,
     },
+    FakeFileEntry {
+        name: "badapple",
+        data: BADAPPLE_ELF,
+    },
     FakeFileEntry {
         name: "doomgeneric",
         data: DOOM_ELF,

kernel/src/driver/serial.rs

@@ -15,7 +15,6 @@ pub struct ConsoleWriter<'a> {
 
 impl Write for ConsoleWriter<'_> {
     fn write_str(&mut self, s: &str) -> fmt::Result {
-        serial_print(s);
         self.console.print(s, self.fb);
         Ok(())
     }
@@ -31,12 +30,17 @@ impl SerialConsole {
     pub fn new() -> SerialConsole {
         SerialConsole {
             text: String::new(),
-            font_size: 2,
+            font_size: 1,
             dirty: false,
         }
     }
 
     pub fn print(&mut self, text: &str, fb: &mut Framebuffer) {
+        if text == "\x1b[2J" {
+            self.text.clear();
+            return;
+        }
+
         let max_height = fb.height / (12 * self.font_size);
         let max_width = fb.width / (8 * self.font_size);
 

kernel/src/main.rs

@@ -180,10 +180,11 @@ pub unsafe extern "C" fn kernel_main_aarch64(mapper: &mut AArchPageTable) -> ! {
             init_framebuffer(&limine_framebuffer);
             with_framebuffer(|fb| fb.setup_aarch64());
         } else {
-            serial_print("no framebuffers found");
+            panic!("no framebuffers found");
         }
+    } else {
+        panic!("no framebuffers found");
     }
-
     init_serial_console();
 
     init_keyboard();
@@ -193,7 +194,6 @@ pub unsafe extern "C" fn kernel_main_aarch64(mapper: &mut AArchPageTable) -> ! {
     } else {
         println!("Could not get date at boot. Will default to 0.")
     }
-
     DAIF.write(DAIF::D::Masked + DAIF::A::Masked + DAIF::I::Unmasked + DAIF::F::Masked);
 
     run_elf(INIT_ELF, false, true);