Add *(.bss.*) to link.x; fixes #8

Const var, which is used for allocator, is .bss.alloc..., and because
there was no that pattern in link scrypt, FILE_END didn't count the var,
that's why initial zero value was overwritten by application name (see
MENUET01 header description for more info)

Cargo.toml

@@ -21,6 +21,3 @@ path = "examples/dark.rs"
 [profile.release]
 opt-level = "z"
 lto = "thin"
-
-[[example]]
-name = "fs_demo"

examples/fs_demo.rs

@@ -1,10 +0,0 @@
-#![no_std]
-#![no_main]
-
-use kos::fs::read_file;
-
-#[no_mangle]
-pub fn kol_main() {
-    let mut buf = [0u8; 256];
-    let _ = read_file(c"/rd/1/readme.txt", &mut buf);
-}

link.x

@@ -30,7 +30,10 @@ SECTIONS {
     *(data)
   }
 
-  .bss ALIGN(16) : {*(.bss)}
+  .bss ALIGN(16) : {
+    *(.bss)
+    *(.bss.*)
+  }
 
   FILE_END = .;
 }

src/fs.rs

@@ -1,58 +0,0 @@
-use core::ffi::CStr;
-use crate::sys::{fs_execute, FsBlock};
-
-fn execute(op: u32, offset: u32, offset_hi: u32, count: u32, buf: *mut u8, path: &CStr) -> Result<(), u32> {
-    let info = FsBlock {
-        operation:  op,
-        offset,
-        offset_hi,
-        byte_count: count,
-        buffer:     buf,
-        _pad:       0,
-        path:       path.as_ptr() as *const u8,
-    };
-    match unsafe { fs_execute(&info) } {
-        0 => Ok(()),
-        e => Err(e),
-    }
-}
-
-pub fn read_file(path: &CStr, buf: &mut [u8]) -> Result<(), u32> {
-    execute(0, 0, 0, buf.len() as u32, buf.as_mut_ptr(), path)
-}
-
-pub fn read_folder(path: &CStr, buf: &mut [u8]) -> Result<(), u32> {
-    execute(1, 0, 0, buf.len() as u32, buf.as_mut_ptr(), path)
-}
-
-pub fn create_file(path: &CStr, buf: &[u8]) -> Result<(), u32> {
-    execute(2, 0, 0, buf.len() as u32, buf.as_ptr() as *mut u8, path)
-}
-
-pub fn write_file(path: &CStr, buf: &[u8]) -> Result<(), u32> {
-    execute(3, 0, 0, buf.len() as u32, buf.as_ptr() as *mut u8, path)
-}
-
-pub fn set_size(path: &CStr, size: u64) -> Result<(), u32> {
-    execute(4, size as u32, (size >> 32) as u32, 0, core::ptr::null_mut(), path)
-}
-
-pub fn get_attributes(path: &CStr, buf: &mut [u8]) -> Result<(), u32> {
-    execute(5, 0, 0, buf.len() as u32, buf.as_mut_ptr(), path)
-}
-
-pub fn set_attributes(path: &CStr, buf: &[u8]) -> Result<(), u32> {
-    execute(6, 0, 0, buf.len() as u32, buf.as_ptr() as *mut u8, path)
-}
-
-pub fn run(path: &CStr) -> Result<(), u32> {
-    execute(7, 0, 0, 0, core::ptr::null_mut(), path)
-}
-
-pub fn delete(path: &CStr) -> Result<(), u32> {
-    execute(8, 0, 0, 0, core::ptr::null_mut(), path)
-}
-
-pub fn create_folder(path: &CStr) -> Result<(), u32> {
-    execute(9, 0, 0, 0, core::ptr::null_mut(), path)
-}

src/func_constants.inc

@@ -20,4 +20,3 @@ SF_SYS_MISC             = 68
     SSF_MEM_ALLOC   = 12
     SSF_MEM_FREE    = 13
     SSF_LOAD_DLL    = 19
-SF_FILE                 = 70

src/lib.rs

@@ -6,7 +6,6 @@ mod nanolibc;
 pub mod allocation;
 pub mod dll;
 pub mod sys;
-pub mod fs;
 
 pub use modules::*;
 

src/sys.rs

@@ -67,19 +67,4 @@ extern "C" {
     // 68.19
     #[link_name = "_load_dll"]
     pub fn load_dll(name: *const u8) -> *const u32;
-
-    // 70
-    #[link_name = "_fs_execute"]
-    pub fn fs_execute(info: *const FsBlock) -> u32;
-}
-
-#[repr(C)]
-pub(crate) struct FsBlock {
-    pub operation:  u32,
-    pub offset:     u32,
-    pub offset_hi:  u32,
-    pub byte_count: u32,
-    pub buffer:     *mut u8,
-    pub _pad:       u8,
-    pub path:       *const u8,
 }

src/syscalls.S

@@ -20,7 +20,6 @@ section '.text'
     public _get_lang
     public _load_dll
     public _set_event_mask
-    public _fs_execute
 
 _exit:
     mov eax, SF_TERMINATE_PROCESS
@@ -144,10 +143,3 @@ _set_event_mask:
     int 0x40
     ret
 
-_fs_execute:
-    push ebx
-    mov eax, SF_FILE
-    mov ebx, [esp + 4 * 2]
-    int 0x40
-    pop ebx
-    ret