debug/2024-04.txt

@@ -0,0 +1,29 @@
+======== 04-21 16:50 ========
+Hit null pointer at 0x100370a
+Stack trace:
+     1 0x0000000001007b90 -> interrupt_req_DE
+     2 0x00000000010072b0 -> metaverse::kernel::tty::tty::MessageBuilder::message_mut
+     3 0x0000000001007e60 -> <metaverse::libk::alloc::string::String as core::iter::traits::collect::FromIterator::<char>>::from_iter
+     4 0x0000000001005eb0 -> <alloc::string::String as core::iter::traits::collect::FromIterator<char>>::from_iter
+     5 0x0000000001005d80 -> <alloc::string::String as core::iter::traits::collect::Extend<char>>::extend
+     6 0x0000000001004840 -> alloc::vec::Vec::reserve
+     7 0x0000000001005900 -> alloc::raw_vec::RawVec::reserve::{do_reserve_and_handle}
+     8 0x00000000010055c0 -> alloc::raw_vec::RawVec::grow_amortized
+     9 0x00000000010051e0 -> alloc::raw_vec::finish_grow
+    10 0x0000000001005a90 -> <alloc::alloc::Global as core::alloc::Allocator>::allocate
+    11 0x0000000001004900 -> alloc::alloc::Global::alloc_impl
+    12 0x00000000010048a0 -> alloc::alloc::alloc
+    13 0x00000000010036e0 -> core::ptr::read_volatile::precondition_check
+使用了core crate中的String，导致最终调用了一个含有未正确链接的函数。
+
+======== 04-23 13:55 ========
+Hit null pointer as 0x100351a.
+Stack trace:
+    0x00000000010054d0 -> metaverse::kernel::tty::tty::MessageBuilder::message_mut
+    0x0000000001006170 -> <str as metaverse::libk::alloc::string::ToString>::to_string
+    0x0000000001006080 -> <metaverse::libk::alloc::string::String as core::iter::traits::collect::FromIterator<char>>::from_iter
+    0x0000000001007450 -> <metaverse::libk::alloc::vec::Vec as core::iter::traits::collect::FromIterator>::from_iter
+    0x0000000001006a10 -> metaverse::libk::alloc::vec::Vec::push
+    0x0000000001003f60 -> alloc::alloc::alloc
+    0x00000000010034f0 -> core::ptr::read_volatile::precondition_check
+使用了core crate的alloc函数，其中含有未正确链接的函数。

src/Makefile

@@ -31,16 +31,24 @@ endif
 ################################
 # rust语言环境变量
 
+TARGET_TRIPLE =
+
+ifeq (${ARCH},x86_64)
+	TARGET_TRIPLE := x86_64-unknown-none
+endif
+
+RUSTLIB_PATH = ../target/sysroot/lib/rustlib/${TARGET_TRIPLE}/lib
+RUST_LIBS = $(shell ls -d ${RUSTLIB_PATH}/lib*.rlib)
+
 RSCFLAGS = --emit obj --crate-type staticlib --verbose \
 	--crate-name=metaverse \
 	--edition 2021 \
-	-L crate="${PWD}/../rustlib/src/" \
 	-C code-model=large \
 	-C relocation-model=static \
-	-C embed-bitcode=no
+	-C embed-bitcode=no \
+	-C panic=abort
 
 ifeq (${ARCH},x86_64)
-	RSCFLAGS := ${RSCFLAGS} --target x86_64-unknown-none
 	RSCFLAGS := ${RSCFLAGS} -C target-feature=-sse
 endif
 
@@ -48,18 +56,14 @@ ifdef release
 	RSCFLAGS := ${RSCFLAGS} -O
 endif
 
-RUSTLIB_PATH = ../rustlib/${ARCH}
-RUST_LIBS = "${RUSTLIB_PATH}/liballoc.rlib" "${RUSTLIB_PATH}/libcompiler_builtins.rlib" \
-	"${RUSTLIB_PATH}/libcore.rlib" "${RUSTLIB_PATH}/librustc_std_workspace_core.rlib"
-
 ################################
 
 metaverse.elf: kernel libk rust metaverse.lds font_file.o
 	@echo -e "\e[1;33mld\e[0m \e[1;32m$@\e[0m \e[34m<--\e[0m \e[32m${SUBOBJS}\e[0m"
 	@ld -T metaverse.lds -Map=metaverse.map -unresolved-symbols=ignore-all -o $@ ${SUBOBJS} ${RUST_LIBS} \
-		2>&1 | "${SOURCE}/colorize" "warning:=yellow" "error:=red" "ld=lyellow"
+		2>&1 | "${SOURCE}/colorize" "warning:=lpink" "error:=red" "ld=lyellow"
 
-.PHONY: kernel libk all clear postproc rust
+.PHONY: kernel libk all clear postproc rust rustlib
 
 all: postproc metaverse.elf
 	@echo -e "Build \e[1;32msucceeded\e[0m."
@@ -92,7 +96,10 @@ libk:
 		echo -e "\e[33m-------------------------\e[0m"; \
 	fi
 
-rust: postproc
+../target:
+	@-cargo xbuild --target ${TARGET_TRIPLE} --release
+
+rust: postproc ../target
 	@echo -e "\e[1m\e[33mrustc\e[0m \e[34m-->\e[0m \e[1m\e[32m$@.o\e[0m"
 	@rustc ${RSCFLAGS} lib.rs -o rust.o
 

src/kernel/main.rs

@@ -1,22 +1,13 @@
-use crate::message;
-
-use super::{
-    klog::{KernelLogger, LoggerLevel},
-    tty::tty::{BuilderFunctions::*, Color, Tty},
+use crate::{
+    kernel::{
+        klog::{KernelLogger, LoggerLevel},
+        tty::tty::Tty,
+    },
+    message_raw,
 };
 
 #[no_mangle]
 extern "C" fn kmain_rust() -> ! {
     let tty = Tty::from_id(0).unwrap();
-    let mut logger = KernelLogger::new();
-    logger.info(message!(
-        Msg("Hello, "),
-        Msg("Metaverse"),
-        FgColor(Color::GREEN),
-        Msg("!\n")
-    ));
-    for msg in logger.iter(LoggerLevel::Info) {
-        tty.print(msg);
-    }
     loop {}
 }

src/kernel/memm/memm.rs

@@ -6,9 +6,9 @@ use core::{
 };
 
 extern "C" {
-    pub fn memm_kernel_allocate(size: usize) -> *mut u8;
+    fn memm_kernel_allocate(size: usize) -> *mut u8;
     // pub fn memm_user_allocate(size: usize, pid: usize);
-    pub fn memm_free(mem: *mut u8);
+    fn memm_free(mem: *mut u8);
 }
 
 pub struct KernelAllocator {}
@@ -31,4 +31,4 @@ unsafe impl GlobalAlloc for KernelAllocator {
 }
 
 #[global_allocator]
-static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator {};
+pub static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator {};

src/kernel/memm/mod.rs

@@ -1 +1 @@
-mod memm;
+pub mod memm;

src/kernel/tty/mod.rs

@@ -25,22 +25,43 @@ macro_rules! message_bgc {
 }
 
 #[macro_export]
-macro_rules! message {
+macro_rules! message_raw {
     ( $( $e : expr ),* ) => {{
         use crate::{
-            kernel::tty::tty::{MessageBuilder, BuilderFunctions},
+            kernel::tty::tty::{MessageBuilder, BuilderFunctions::*, Color},
             message_msg, message_fgc, message_bgc
         };
         let mut tmp_builder = MessageBuilder::new();
         $(
-            if let BuilderFunctions::Msg(e) = $e {
-                message_msg!(tmp_builder, e);
-            } else if let BuilderFunctions::FgColor(c) = $e {
+            if let Msg(e) = $e {
+                message_msg!(tmp_builder, &e);
+            } else if let FgColor(c) = $e {
                 message_fgc!(tmp_builder, c);
-            } else if let BuilderFunctions::BgColor(c) = $e {
+            } else if let BgColor(c) = $e {
                 message_bgc!(tmp_builder, c);
             }
         )*
         tmp_builder.build()
     }};
 }
+
+#[macro_export]
+macro_rules! message {
+    ( $fmtter : expr, $( $e : expr ),* ) => {{
+        use crate::{
+            kernel::tty::tty::{
+                MessageBuilder,
+                FmtMeta,
+                Color,
+                format_message
+            },
+            libk::alloc::vec::Vec,
+        };
+        let mut formatter = $fmtter.chars().collect::<Vec<char>>();
+        let builder = MessageBuilder::new();
+        $(
+            let builder = builder.append(format_message(&mut formatter, $e));
+        )*
+        builder.build()
+    }};
+}

src/kernel/tty/tty.rs

@@ -233,8 +233,8 @@ pub struct MessageBuilder {
     msg: Message,
 }
 
-pub enum BuilderFunctions<'a> {
-    Msg(&'a str),
+pub enum BuilderFunctions<T: ToString> {
+    Msg(T),
     FgColor(Color),
     BgColor(Color),
 }

src/lib.rs

@@ -1,5 +1,6 @@
 #![no_std]
 #![feature(strict_provenance)]
+#![feature(layout_for_ptr)]
 
 extern crate alloc;
 

src/libk/alloc/alloc.rs

@@ -0,0 +1,11 @@
+use core::alloc::{GlobalAlloc, Layout};
+
+use crate::kernel::memm::memm::KERNEL_ALLOCATOR;
+
+pub unsafe fn alloc(layout: Layout) -> *mut u8 {
+    KERNEL_ALLOCATOR.alloc(layout)
+}
+
+pub unsafe fn dealloc(ptr: *mut u8, layout: Layout) {
+    KERNEL_ALLOCATOR.dealloc(ptr, layout);
+}

src/libk/alloc/boxed.rs

@@ -5,7 +5,7 @@ use core::{
     ptr::addr_of,
 };
 
-use alloc::alloc::alloc;
+use crate::libk::alloc::alloc::{alloc, dealloc};
 
 pub struct Box<T: ?Sized> {
     inner: *mut T,
@@ -36,3 +36,14 @@ impl<T: ?Sized> DerefMut for Box<T> {
         unsafe { self.inner.as_mut().unwrap() }
     }
 }
+
+impl<T: ?Sized> Drop for Box<T> {
+    fn drop(&mut self) {
+        unsafe {
+            dealloc(
+                self.inner.cast(),
+                Layout::for_value_raw(self.inner.cast_const()),
+            )
+        }
+    }
+}

src/libk/alloc/mod.rs

@@ -1,3 +1,4 @@
+pub mod alloc;
 pub mod boxed;
 pub mod string;
 pub mod vec;

src/libk/alloc/string.rs

@@ -31,6 +31,11 @@ impl String {
     pub unsafe fn as_bytes_mut(&mut self) -> &mut [u8] {
         &mut self.u8data[..]
     }
+
+    pub fn insert(&mut self, index: usize, item: char) {
+        self.data.insert(index, item);
+        self.u8data.insert(index, item as u8);
+    }
 }
 
 impl FromIterator<char> for String {
@@ -72,6 +77,12 @@ impl AddAssign for String {
 
 pub trait ToString {
     fn to_string(&self) -> String;
+    fn to_octal_string(&self) -> String {
+        String::new()
+    }
+    fn to_hex_string(&self) -> String {
+        String::new()
+    }
 }
 
 impl ToString for str {
@@ -79,3 +90,201 @@ impl ToString for str {
         String::from_iter(self.chars())
     }
 }
+
+impl ToString for &'static str {
+    fn to_string(&self) -> String {
+        (*self).to_string()
+    }
+}
+
+impl ToString for u8 {
+    fn to_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 10) as u8 + b'0') as char);
+            num /= 10;
+        }
+        res
+    }
+
+    fn to_octal_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 8) as u8 + b'0') as char);
+            num /= 8;
+        }
+        res
+    }
+
+    fn to_hex_string(&self) -> String {
+        let tohex = |x| {
+            if x < 10 {
+                x as u8 + b'0'
+            } else {
+                x as u8 - 10 + b'a'
+            }
+        };
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, (tohex(num % 16) + b'0') as char);
+            num /= 16;
+        }
+        res
+    }
+}
+
+impl ToString for u16 {
+    fn to_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 10) as u8 + b'0') as char);
+            num /= 10;
+        }
+        res
+    }
+
+    fn to_octal_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 8) as u8 + b'0') as char);
+            num /= 8;
+        }
+        res
+    }
+
+    fn to_hex_string(&self) -> String {
+        let tohex = |x| {
+            if x < 10 {
+                x as u8 + b'0'
+            } else {
+                x as u8 - 10 + b'a'
+            }
+        };
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, (tohex(num % 16) + b'0') as char);
+            num /= 16;
+        }
+        res
+    }
+}
+impl ToString for u32 {
+    fn to_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 10) as u8 + b'0') as char);
+            num /= 10;
+        }
+        res
+    }
+
+    fn to_octal_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 8) as u8 + b'0') as char);
+            num /= 8;
+        }
+        res
+    }
+
+    fn to_hex_string(&self) -> String {
+        let tohex = |x| {
+            if x < 10 {
+                x as u8 + b'0'
+            } else {
+                x as u8 - 10 + b'a'
+            }
+        };
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, (tohex(num % 16) + b'0') as char);
+            num /= 16;
+        }
+        res
+    }
+}
+impl ToString for u64 {
+    fn to_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 10) as u8 + b'0') as char);
+            num /= 10;
+        }
+        res
+    }
+
+    fn to_octal_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 8) as u8 + b'0') as char);
+            num /= 8;
+        }
+        res
+    }
+
+    fn to_hex_string(&self) -> String {
+        let tohex = |x| {
+            if x < 10 {
+                x as u8 + b'0'
+            } else {
+                x as u8 - 10 + b'a'
+            }
+        };
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, (tohex(num % 16) + b'0') as char);
+            num /= 16;
+        }
+        res
+    }
+}
+impl ToString for u128 {
+    fn to_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 10) as u8 + b'0') as char);
+            num /= 10;
+        }
+        res
+    }
+
+    fn to_octal_string(&self) -> String {
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, ((num % 8) as u8 + b'0') as char);
+            num /= 8;
+        }
+        res
+    }
+
+    fn to_hex_string(&self) -> String {
+        let tohex = |x| {
+            if x < 10 {
+                x as u8 + b'0'
+            } else {
+                x as u8 - 10 + b'a'
+            }
+        };
+        let mut num = *self;
+        let mut res = String::new();
+        while num != 0 {
+            res.insert(0, (tohex(num % 16) + b'0') as char);
+            num /= 16;
+        }
+        res
+    }
+}

src/libk/alloc/vec.rs

@@ -5,7 +5,7 @@ use core::{
     slice,
 };
 
-use alloc::alloc::{alloc, dealloc};
+use crate::libk::alloc::alloc::{alloc, dealloc};
 
 pub struct Vec<T> {
     pointer: *mut T,
@@ -205,7 +205,12 @@ impl<T: Default> IntoIterator for Vec<T> {
     type IntoIter = VecIter<T>;
 
     fn into_iter(self) -> Self::IntoIter {
-        todo!()
+        VecIter {
+            pointer: self.pointer,
+            index: 0,
+            length: self.length,
+            capacity: self.capacity,
+        }
     }
 }