added support for other platforms

Kernel/CMakeLists.txt

@@ -1,10 +1,53 @@
 cmake_minimum_required(VERSION 3.10)
 project(ksOSKernel LANGUAGES ASM C)
 
-set(SWIFT_TOOLCHAIN "$ENV{HOME}/Library/Developer/Toolchains/swift-6.2.3-RELEASE.xctoolchain")
-set(SWIFTC "${SWIFT_TOOLCHAIN}/usr/bin/swiftc")
-set(SWIFT_RESOURCE_DIR "${SWIFT_TOOLCHAIN}/usr/lib/swift")
+# --- Locate Swift toolchain with Embedded Swift stdlib ---
+# Priority: cmake var > env var > auto-detect
+if(NOT SWIFT_TOOLCHAIN AND DEFINED ENV{SWIFT_TOOLCHAIN})
+    set(SWIFT_TOOLCHAIN "$ENV{SWIFT_TOOLCHAIN}")
+endif()
 
+if(SWIFT_TOOLCHAIN)
+    set(SWIFTC             "${SWIFT_TOOLCHAIN}/usr/bin/swiftc")
+    set(SWIFT_RESOURCE_DIR "${SWIFT_TOOLCHAIN}/usr/lib/swift")
+elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
+    # Scan for a swift.org toolchain that ships the embedded stdlib.
+    # APPLE is false here (target is Generic), so we check the HOST OS.
+    file(GLOB _tc_candidates
+        "$ENV{HOME}/Library/Developer/Toolchains/*.xctoolchain"
+        "/Library/Developer/Toolchains/*.xctoolchain"
+    )
+    foreach(_tc ${_tc_candidates})
+        if(EXISTS "${_tc}/usr/lib/swift/embedded")
+            set(SWIFTC             "${_tc}/usr/bin/swiftc")
+            set(SWIFT_RESOURCE_DIR "${_tc}/usr/lib/swift")
+            break()
+        endif()
+    endforeach()
+else()
+    # Linux: find swiftc in PATH, derive resource dir from its location
+    find_program(_SWIFTC_EXE swiftc)
+    if(_SWIFTC_EXE)
+        get_filename_component(_SWIFTC_BIN "${_SWIFTC_EXE}" DIRECTORY)
+        get_filename_component(_SWIFTC_USR "${_SWIFTC_BIN}" DIRECTORY)
+        if(EXISTS "${_SWIFTC_USR}/lib/swift/embedded")
+            set(SWIFTC             "${_SWIFTC_EXE}")
+            set(SWIFT_RESOURCE_DIR "${_SWIFTC_USR}/lib/swift")
+        endif()
+    endif()
+endif()
+
+if(NOT SWIFTC OR NOT EXISTS "${SWIFT_RESOURCE_DIR}/embedded")
+    message(FATAL_ERROR
+        "Swift toolchain with Embedded Swift not found.\n"
+        "Install a swift.org toolchain and pass -DSWIFT_TOOLCHAIN=<root> "
+        "or set the SWIFT_TOOLCHAIN env var.")
+endif()
+
+message(STATUS "Swift: ${SWIFTC}")
+message(STATUS "Swift resource dir: ${SWIFT_RESOURCE_DIR}")
+
+# --- Build ---
 add_compile_options(-ffreestanding -nostdlib -O0 -g)
 
 set(LINKER_SCRIPT ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld)
@@ -16,7 +59,7 @@ add_link_options(
 )
 
 set(SWIFT_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/Source/kernel.swift)
-set(SWIFT_OBJ ${CMAKE_CURRENT_BINARY_DIR}/kernel_swift.o)
+set(SWIFT_OBJ     ${CMAKE_CURRENT_BINARY_DIR}/kernel_swift.o)
 
 add_custom_command(
     OUTPUT ${SWIFT_OBJ}
@@ -30,6 +73,7 @@ add_custom_command(
         -resource-dir ${SWIFT_RESOURCE_DIR}
         -c ${SWIFT_SOURCES}
         -o ${SWIFT_OBJ}
+    COMMAND ${LLVM_OBJCOPY} --remove-section=.swift_modhash ${SWIFT_OBJ}
     DEPENDS ${SWIFT_SOURCES}
     COMMENT "Compiling Swift kernel"
 )

Kernel/cmake/aarch64-bare.cmake

@@ -3,14 +3,26 @@ set(CMAKE_SYSTEM_PROCESSOR aarch64)
 set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
 
 if(NOT LLVM_BIN)
-    execute_process(COMMAND brew --prefix llvm OUTPUT_VARIABLE LLVM_PREFIX OUTPUT_STRIP_TRAILING_WHITESPACE)
-    set(LLVM_BIN "${LLVM_PREFIX}/bin")
+    if(APPLE)
+        execute_process(
+            COMMAND brew --prefix llvm
+            OUTPUT_VARIABLE LLVM_PREFIX
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+        )
+        set(LLVM_BIN "${LLVM_PREFIX}/bin")
+    else()
+        find_program(_CLANG clang)
+        if(NOT _CLANG)
+            message(FATAL_ERROR "clang not found. Install: apt install clang lld / dnf install clang lld")
+        endif()
+        get_filename_component(LLVM_BIN "${_CLANG}" DIRECTORY)
+    endif()
 endif()
 
-set(CMAKE_C_COMPILER "${LLVM_BIN}/clang")
+set(CMAKE_C_COMPILER   "${LLVM_BIN}/clang")
 set(CMAKE_ASM_COMPILER "${LLVM_BIN}/clang")
-set(LLVM_OBJCOPY "${LLVM_BIN}/llvm-objcopy")
+set(LLVM_OBJCOPY       "${LLVM_BIN}/llvm-objcopy")
 
 set(TARGET_TRIPLE aarch64-none-elf)
-set(CMAKE_C_COMPILER_TARGET ${TARGET_TRIPLE})
-set(CMAKE_ASM_COMPILER_TARGET ${TARGET_TRIPLE})
+set(CMAKE_C_COMPILER_TARGET   ${TARGET_TRIPLE})
+set(CMAKE_ASM_COMPILER_TARGET ${TARGET_TRIPLE})

Kernel/linker.ld

@@ -11,4 +11,5 @@ SECTIONS {
     .rodata : { *(.rodata*) }
     .data   : { *(.data*)   }
     .bss    : { *(.bss*) *(COMMON) }
+
 }