Made building and emulation architecture independent

.gitignore

@@ -20,15 +20,14 @@ Cargo.lock
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
 
-# Generated grub files
-kernel/grub/
-kernel/aphrodite-grub.iso
-kernel/aphrodite.iso
-
 # Generated files
-kernel/kernel.flat
+kernel/grub/
+kernel/aphrodite-grub-*.iso
+kernel/aphrodite-*.iso
+kernel/kernel-*
 kernel/config.aphro.tmp
 kernel/targets.tmp
+emulation/bochsrc
 
 # Per-developer files
 kernel/config.aphro

emulation/bochsrc

@@ -3,6 +3,6 @@ port_e9_hack: enabled=1
 cpu: reset_on_triple_fault=0, model=corei7_icelake_u
 magic_break: enabled=1
 
-ata0-master: type=cdrom, path=../kernel/aphrodite.iso, status=inserted
+ata0-master: type=cdrom, path=../kernel/aphrodite-x86.iso, status=inserted
 boot: cdrom
 memory: guest=512, host=512

emulation/bochsrc.template

@@ -0,0 +1,8 @@
+display_library: x, options="gui_debug"
+port_e9_hack: enabled=1
+cpu: reset_on_triple_fault=0, model=corei7_icelake_u
+magic_break: enabled=1
+
+ata0-master: type=cdrom, path=../kernel/%{BUILT_FILE}, status=inserted
+boot: cdrom
+memory: guest=512, host=512

emulation/bx_enh_dbg.ini

@@ -22,5 +22,5 @@ DockOrder = 0x123
 ListWidthPix[0] = 179
 ListWidthPix[1] = 245
 ListWidthPix[2] = 281
-MainWindow = 0, 0, 709, 500
+MainWindow = 819, 38, 709, 500
 FontName = Normal

kernel/build

@@ -3,7 +3,6 @@
 (
     set -e
 
-    
     export KERNEL_DIR=$(readlink -e .)
 
     DIR="${BASH_SOURCE%/*}"
@@ -34,26 +33,37 @@
         echo
     fi
 
-    cd ../kernel
-
-    for target in $TARGETS; do
+    function compile_one {
+        target=$1
         real_target=${!target}
+        real_target=$(basename $real_target)
+        echo "Compiling target $target(with rust target of $real_target)"
         cargo build --target "$real_target" --release -Zbuild-std --bin entrypoint_$target
-        cp target/i686-unknown-none/release/entrypoint_$target kernel.flat
+        cp "target/$(echo $real_target | sed 's/\.json//')/release/entrypoint_$target" kernel-$target
 
         if [[ "$CONFIG_BUILD_GRUB" = "true" ]]; then
-            rm -rf grub aphrodite-grub.iso
-            if [[ "$target" = "x86" ]]; then
+            if [[ "$target" = "x86" || "$target" = "mips64" || "$target" = "mipsel" || "$target" = "mipsle" ]]; then
+                rm -rf grub aphrodite-grub-$target.iso
                 cp -r ./grub_template ./grub
 
-                cp kernel.flat ./grub/boot/aphrodite.kernel
+                cp kernel-$target ./grub/boot/aphrodite.kernel
 
                 sed -i "s@%{VERSION}@$VERSION@g" ./grub/boot/grub/grub.cfg
 
-                grub-mkrescue -o aphrodite-grub.iso grub
-                cp aphrodite-grub.iso aphrodite.iso
+                grub-mkrescue -o aphrodite-grub-$target.iso grub
+                cp aphrodite-grub-$target.iso aphrodite-$target.iso
             fi
         fi
+    }
+
+    if [[ $# -ge 1 ]]; then
+        echo "[INFO] Compiling only target $1"
+        compile_one $1
+        exit 0
+    fi
+
+    for target in $TARGETS; do
+        compile_one $target
     done
 
     reset_version_vars

kernel/build.rs

@@ -17,6 +17,8 @@ fn main() {
     println!(r#"cargo:rustc-check-cfg=cfg(CONFIG_PREUSER_OUTPUT_WARN, values("true", "false", none()))"#);
     println!(r#"cargo:rustc-check-cfg=cfg(CONFIG_PREUSER_OUTPUT_ERROR, values("true", "false", none()))"#);
     println!(r#"cargo:rustc-check-cfg=cfg(CONFIG_PREUSER_OUTPUT_FATAL, values("true", "false", none()))"#);
+
+    println!(r#"cargo:rustc-check-cfg=cfg(CONFIG_BUILD_GRUB, values("true", "false", none()))"#);
     // End checks
 
     // Configuration name used when a config is required but should always evaluate to true

kernel/build_and_emulate

@@ -5,5 +5,8 @@ set -e
 DIR="${BASH_SOURCE%/*}"
 if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
 
-. $DIR/build
-. $DIR/emulate
+. $DIR/build $!
+
+if [[ $# -ge 1 ]]; then
+    . $DIR/emulate $!
+fi

kernel/emulate

@@ -1,6 +1,20 @@
 #!/bin/bash
 
+if [[ $# -ne 1 ]]; then
+    echo "Error: expected target to be passed to $0"
+    echo ""
+    echo "Run in the format: $0 target"
+    exit 1
+fi
+
 set -e
 
 cd ../emulation
+
+# -f makes it so it won't error out if the file doesn't exist
+rm -f bochsrc
+cp bochsrc.template bochsrc
+
+sed -i "s@%{BUILT_FILE}@aphrodite-$1.iso@g" bochsrc
+
 bochs -q

kernel/i686-unknown-none.json

@@ -20,5 +20,6 @@
     "host_tools": false,
     "std": false,
     "tier": 3
-  }
+  },
+  "rustc-abi": "x86-softfloat"
 }

kernel/src/kernel/indep_boot_entry.rs

@@ -15,8 +15,7 @@ const MEM_TEST_SIZES: [usize; 8] = [1, 2, 4, 8, 16, 32, 64, 128];
 #[kernel_item(IndepBootEntry)]
 fn indep_boot_entry(
     display: Option<&dyn crate::display::TextDisplay>,
-    #[allow(non_snake_case)]
-    BI: &crate::boot::BootInfo,
+    #[allow(non_snake_case)] BI: &crate::boot::BootInfo,
 ) -> ! {
     crate::arch::output::sdebugsln("Entrypoint called");
 

kernel/src/kernel/mem.rs

@@ -78,9 +78,7 @@ fn get_allocator() -> Option<&'static MemoryMapAlloc<'static>> {
 }
 
 #[kernel_item(MemMapAllocInit)]
-fn memory_map_alloc_init(
-    memmap: crate::boot::MemoryMap,
-) -> Result<(), crate::Error<'static>> {
+fn memory_map_alloc_init(memmap: crate::boot::MemoryMap) -> Result<(), crate::Error<'static>> {
     #[allow(static_mut_refs)]
     unsafe {
         ALLOCATOR_MEMMAP.write(memmap);

kernel/src/proc_macros/mod.rs

@@ -2,7 +2,7 @@ use proc_macro::TokenStream;
 use quote::{ToTokens, quote};
 use syn::{
     ItemFn, Signature, Token,
-    parse::{Parse, ParseStream}
+    parse::{Parse, ParseStream},
 };
 
 struct KernelItemNameInput {
@@ -24,9 +24,7 @@ fn to_tokens(signature: Signature, tokens: &mut proc_macro2::TokenStream) {
     signature.abi.to_tokens(ts.into());
     signature.fn_token.to_tokens(ts.into());
     signature.generics.to_tokens(ts.into());
-    signature
-        .paren_token
-        .surround(ts.into(), |tokens| {
+    signature.paren_token.surround(ts.into(), |tokens| {
         signature.inputs.to_tokens(tokens);
         if let Some(variadic) = &signature.variadic {
             if !signature.inputs.empty_or_trailing() {
@@ -36,10 +34,7 @@ fn to_tokens(signature: Signature, tokens: &mut proc_macro2::TokenStream) {
         }
     });
     signature.output.to_tokens(ts.into());
-    signature
-        .generics
-        .where_clause
-        .to_tokens(ts.into());
+    signature.generics.where_clause.to_tokens(ts.into());
 }
 
 fn to_token_stream(signature: Signature) -> proc_macro2::TokenStream {
@@ -58,7 +53,7 @@ pub fn kernel_item(attr: TokenStream, item: TokenStream) -> TokenStream {
     let fn_name = input_fn.clone().sig.ident;
     let fn_sig = to_token_stream(input_fn.clone().sig);
 
-    quote!{
+    quote! {
         /// The #item_name kernel item.
         #[allow(non_upper_case_globals)]
         pub const #item_name: #fn_sig = #fn_name;