pushing changes to diagnose rustc ICE

Author: mark3982

boards/realview-eb-mpcore/board.rs

@@ -5,4 +5,11 @@
 
     It is produced at this time as a Rust library which is then used by
     the kernel when it is built.
-*/
+*/
+#![no_std]
+
+extern crate core;
+
+pub fn test() -> int {
+    88
+}

build

@@ -1,3 +1,5 @@
-rustc main.rs --opt-level 3 --emit=obj --target=arm-unknown-linux-gnueabi
+#rustc --crate-type rlib ./boards/realview-eb-mpcore/board.rs --target=arm-unknown-linux-gnueabi
+#rustc --crate-type rlib ./core/core.rs --target=arm-unknown-linux-gnueabi
+rustc -L . main.rs --opt-level 3 --emit=obj --target=arm-unknown-linux-gnueabi
 arm-ld main.o -o rustk.elf
 arm-objcopy -j .text -O binary rustk.elf rustk.bin

core.rs

@@ -0,0 +1,48 @@
+#![feature(lang_items)]
+#![no_std]
+
+#[lang="sized"]
+trait Sized {}
+#[lang="sync"]
+trait Sync {}
+
+#[lang = "stack_exhausted"] extern fn stack_exhausted() {}
+#[lang = "eh_personality"] extern fn eh_personality() {}
+#[lang = "panic_fmt"] fn panic_fmt() -> ! { loop {} }
+
+#[lang = "exchange_heap"]
+#[experimental = "may be renamed; uncertain about custom allocator design"]
+pub static HEAP: () = ();
+
+/// A type that represents a uniquely-owned value.
+#[lang = "owned_box"]
+#[unstable = "custom allocators will add an additional type parameter (with default)"]
+pub struct Box<T>(*mut T);
+
+struct Global {
+    heapoffset:     uint,
+    curheapndx:     uint
+}
+
+static mut GLOBAL: Global = Global {
+    heapoffset:     0,
+    curheapndx:     0
+};
+
+#[lang="exchange_malloc"]
+#[inline]
+unsafe fn exchange_malloc(size: uint, align: uint) -> *mut u8 {
+    // The most simple heap possible!
+    let ptr: uint;
+    ptr = GLOBAL.heapoffset + GLOBAL.curheapndx;
+    GLOBAL.curheapndx += size;
+
+    ptr as *mut u8
+}
+
+#[lang="exchange_free"]
+#[inline]
+unsafe fn exchange_free(ptr: *mut u8, old_size: uint, align: uint) {
+    // The most simple heap possible. It does not support
+    // deallocation!
+}

core/core.rs

@@ -3,25 +3,15 @@
 #![allow(unused_variables)]
 #![allow(dead_code)]
 #![feature(asm)]
+#![feature(globs)]
 
-mod core;
+extern crate board;
+extern crate core;
 
-#[lang="sized"]
-trait Sized {}
-#[lang="sync"]
-trait Sync {}
+use core::*;
 
 static GDT: [u32, ..5] = [0, 1, 2, 3, 4];
 
-#[lang = "exchange_heap"]
-#[experimental = "may be renamed; uncertain about custom allocator design"]
-pub static HEAP: () = ();
-
-/// A type that represents a uniquely-owned value.
-#[lang = "owned_box"]
-#[unstable = "custom allocators will add an additional type parameter (with default)"]
-pub struct Box<T>(*mut T);
-
 #[start]
 fn main(argc: int, argv: *const *const u8) -> int {
     unsafe {
@@ -68,6 +58,8 @@ extern fn kstart() {
     */
     let x: Box<uint> = box 3u;
 
+    board::test();
+
     kserdbg_putc(65);   
     kserdbg_putc(66);
     kserdbg_putc(67);