init version

.cargo/config.toml

@@ -0,0 +1,6 @@
+[build]
+target = ".cargo/target-i386.json"
+
+[unstable]
+build-std = ["core", "compiler_builtins"]
+build-std-features = ["compiler-builtins-mem"]

.cargo/linker-mbr-i386.ld

@@ -0,0 +1,58 @@
+OUTPUT_FORMAT("binary")
+ENTRY(_start)
+
+/* props to https://github.com/rust-osdev/bootloader/blob/main/bios/boot_sector/boot-sector-link.ld */
+SECTIONS {
+    . = 0x500;
+    _stack_start = .;
+    . = 0x7c00;
+    _stack_end = .;
+
+    _mbr_start = .;
+    .boot :
+    {
+        *(.boot .boot.*)
+    }
+    .text :
+    {
+        *(.text .text.*)
+    }
+    .rodata :
+    {
+        *(.rodata .rodata.*)
+    }
+    .data :
+    {
+        *(.rodata .rodata.*)
+        *(.data .data.*)
+        *(.got .got.*)
+    }
+    _mbr_end = .;
+
+    . = 0x7c00 + 446;
+    _partition_table = .;
+    .partition_table :
+    {
+        /* partition table entry 0 */
+        QUAD(0)
+        QUAD(0)
+        /* partition table entry 1 */
+        QUAD(0)
+        QUAD(0)
+        /* partition table entry 2 */
+        QUAD(0)
+        QUAD(0)
+        /* partition table entry 3 */
+        QUAD(0)
+        QUAD(0)
+    }
+
+    . = 0x7c00 + 510;
+
+    .magic_number :
+    {
+        SHORT(0xaa55)       /* magic number for bootable disk */
+    }
+
+    _second_stage_start = .;
+}

.cargo/linker-multiboot.ld

@@ -0,0 +1,26 @@
+ENTRY(start)
+
+SECTIONS {
+    . = 1M;
+
+    .boot : ALIGN(16) {
+        KEEP(*(.multiboot2_header))
+    }
+
+    .text ALIGN(4) : {
+      *(.text*)
+    }
+
+    .rodata ALIGN(4) : {
+      *(.rodata*)
+    }
+
+    .data ALIGN(4) : {
+      *(.data*)
+    }
+
+    .bss ALIGN(4) : {
+      *(.bss*)
+      *(COMMON)
+    }
+}

.cargo/linker-vba-i386.ld

@@ -0,0 +1,54 @@
+OUTPUT_FORMAT("binary")
+ENTRY(_start)
+
+SECTIONS {
+    . = 0x500;
+    _stack_start = .;
+    . = 0x7c00;
+    _stack_end = .;
+    _mbr_start = .;
+
+    . = 0x7c00 + 512;
+    _vba_start = .;
+
+    . = 0x7c00 + 512 + 0x0E;
+    _vba_BPB_RsvdSecCnt;
+    . = 0x7c00 + 512 + 0x10;
+    _vba_BPB_NumFATs;
+    . = 0x7c00 + 512 + 0x24;
+    _vba_BPB_FATSz32;
+    . = 0x7c00 + 512 + 0x2C;
+    _vba_BPB_RootClus;
+
+    . = 0x7c00 + 512 + 0x5a;
+    _second_stage_start = .;
+
+    .boot :
+    {
+        *(.boot .boot.*)
+    }
+    .text :
+    {
+        *(.text .text.*)
+    }
+    .rodata :
+    {
+        *(.rodata .rodata.*)
+    }
+    .data :
+    {
+        *(.rodata .rodata.*)
+        *(.data .data.*)
+        *(.got .got.*)
+    }
+
+    _second_stage_end = .;
+
+    . = 0x7c00 + 512 + 510;
+
+    .end_marker :
+    {
+        SHORT(0xaa55)
+    }
+    _real_second_stage_start = .;
+}

.cargo/target-i386.json

@@ -0,0 +1,20 @@
+{
+	"arch": "x86",
+	"cpu": "i386",
+	"data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
+	"dynamic-linking": false,
+	"executables": true,
+	"linker-flavor": "ld.lld",
+	"linker": "rust-lld",
+	"llvm-target": "i386-unknown-none-code16",
+	"max-atomic-width": 64,
+	"position-independent-executables": false,
+	"disable-redzone": true,
+	"target-c-int-width": 32,
+	"target-pointer-width": "32",
+	"target-endian": "little",
+	"panic-strategy": "abort",
+	"os": "none",
+	"vendor": "unknown",
+	"relocation-model": "static"
+}

.cargo/target-protected-i386.json

@@ -0,0 +1,21 @@
+{
+  "arch": "x86",
+  "cpu": "i386",
+  "data-layout": "e-m:e-p:32:32-p270:32:32-p271:32:32-p272:64:64-i128:128-f64:32:64-f80:32-n8:16:32-S128",
+  "dynamic-linking": false,
+  "executables": true,
+  "linker-flavor": "ld.lld",
+  "linker": "rust-lld",
+  "llvm-target": "i386-unknown-none",
+  "max-atomic-width": 64,
+  "position-independent-executables": false,
+  "disable-redzone": true,
+  "target-c-int-width": 32,
+  "target-pointer-width": 32,
+  "target-endian": "little",
+  "panic-strategy": "abort",
+  "os": "none",
+  "vendor": "unknown",
+  "relocation-model": "static",
+  "features": "-sse,-mmx"
+}