Added KolibriOS/Menuet32 magic for file utility

Signed-off-by: Max Logaev <maxlogaev@proton.me>

.gitignore

@@ -40,3 +40,5 @@ sdk
 # Downloaded KolibriOS artifacts
 kolibrios-img.7z
 kolibri.img
+
+tools/file/kolibrios.mgc

README.md

@@ -10,7 +10,7 @@ cmake --build build
 ```
 
 ## Testing
-Launch KolibriOS with the mounted `SDK_TOOLCHAIN_DIR` directory:
+Launch KolibriOS with the mounted `SDK_SYSROOT_DIR` directory:
 ```sh
 ./run-kos.sh
 ```

tools/file/README.md

@@ -0,0 +1,9 @@
+# KolibriOS/Menuet32 magic
+
+Support for KolibriOS and Menuet32 executable files for the [file](https://www.darwinsys.com/file/) utility.
+
+## Build and install
+```sh
+file -C -m kolibrios
+install -D kolibrios.mgc ~/.magic/magic.mgc
+```

tools/file/kolibrios

@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+# KolibriOS and Menuet32 executable formats
+# Copyright (C) 2025 KolibriOS team
+
+0           string  MENUET00    Old Menuet32 executable: MENUET00
+>0x8        ulelong x           \b, Version: %u
+>0xC        ulelong x           \b, Entry: 0x%x
+>0x10       ulelong x           \b, Image end: 0x%x
+>0x14       ulelong x           \b, Memory end: 0x%x
+>0x18       ulelong x           \b, Stack top: 0x%x
+>0x1C       ulelong x           \b, Command line: 0x%x
+
+0           string  MENUET01    KolibriOS/Menuet32 executable: MENUET01
+>0x8        ulelong x           \b, Version: %u
+>0xC        ulelong x           \b, Entry: 0x%x
+>0x10       ulelong x           \b, Image end: 0x%x
+>0x14       ulelong x           \b, Memory end: 0x%x
+>0x18       ulelong x           \b, Stack top: 0x%x
+>0x1C       ulelong x           \b, Command line: 0x%x
+>0x20       ulelong x           \b, App name: 0x%x
+
+0           string  MENUET02    KolibriOS executable: MENUET02 (TLS, HEAP init)
+>0x8        ulelong x           \b, Version: %u
+>0xC        ulelong x           \b, Entry: 0x%x
+>0x10       ulelong x           \b, Image end: 0x%x
+>0x14       ulelong x           \b, Memory end: 0x%x
+>0x18       ulelong x           \b, Stack top: 0x%x
+>0x1C       ulelong x           \b, Command line: 0x%x
+>0x20       ulelong x           \b, App name: 0x%x
+>0x24       ulelong 2           \b, Subsystem: GUI 
+>0x24       ulelong 3           \b, Subsystem: CUI