Add runtime.exit

base/runtime/os_specific.odin

@@ -5,3 +5,7 @@ _OS_Errno :: distinct int
 stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	return _stderr_write(data)
 }
+
+exit :: proc "contextless" (code: int) -> ! {
+	_exit(code)
+}

base/runtime/os_specific_bsd.odin

@@ -24,3 +24,14 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	}
 	return int(ret), 0
 }
+
+
+foreign import libc "system:c"
+
+_exit :: proc "contextless" (code: int) -> ! {
+	@(default_calling_convention="c")
+	foreign libc {
+		exit :: proc(status: i32) -> ! ---
+	}
+	exit(i32(code))
+}

base/runtime/os_specific_darwin.odin

@@ -26,3 +26,13 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 		return 0, _OS_Errno(__error()^)
 	}
 }
+
+foreign import libc "system:System"
+
+_exit :: proc "contextless" (code: int) -> ! {
+	@(default_calling_convention="c")
+	foreign libc {
+		exit :: proc(status: i32) -> ! ---
+	}
+	exit(i32(code))
+}

base/runtime/os_specific_freestanding.odin

@@ -6,3 +6,7 @@ package runtime
 _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	return 0, -1
 }
+
+_exit :: proc "contextless" (code: int) -> ! {
+	trap()
+}

base/runtime/os_specific_haiku.odin

@@ -19,3 +19,9 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	}
 	return int(ret), 0
 }
+
+
+
+_exit :: proc "contextless" (code: int) -> ! {
+
+}

base/runtime/os_specific_js.odin

@@ -11,3 +11,8 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	write(1, data)
 	return len(data), 0
 }
+
+
+_exit :: proc "contextless" (code: int) -> ! {
+	trap()
+}

base/runtime/os_specific_linux.odin

@@ -24,3 +24,17 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 	}
 	return ret, 0
 }
+
+
+_exit :: proc "contextless" (code: int) -> ! {
+	SYS_exit_group ::
+		231 when ODIN_ARCH == .amd64 else
+		248 when ODIN_ARCH == .arm32 else
+		94  when ODIN_ARCH == .arm64 else
+		252 when ODIN_ARCH == .i386  else
+		94  when ODIN_ARCH == .riscv64 else
+		0
+
+	intrinsics.syscall(uintptr(SYS_exit_group), i32(code))
+	unreachable()
+}

base/runtime/os_specific_orca.odin

@@ -41,3 +41,8 @@ _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
 
 	return len(data), 0
 }
+
+
+_exit :: proc "contextless" (code: int) -> ! {
+	trap()
+}

base/runtime/os_specific_wasi.odin

@@ -23,6 +23,9 @@ foreign wasi {
 		argv:     [^]cstring,
 		argv_buf: [^]byte,
 	) -> u16 ---
+
+	@(private="file")
+	proc_exit :: proc(rval: u32) -> ! ---
 }
 
 _stderr_write :: proc "contextless" (data: []byte) -> (int, _OS_Errno) {
@@ -53,3 +56,8 @@ _wasi_setup_args :: proc() {
 		delete(args_buf)
 	}
 }
+
+
+_exit :: proc "contextless" (code: int) -> ! {
+	proc_exit(u32(code))
+}

base/runtime/os_specific_windows.odin

@@ -14,6 +14,8 @@ foreign kernel32 {
 	SetHandleInformation :: proc(hObject: rawptr, dwMask: u32, dwFlags: u32) -> b32 ---
 	WriteFile            :: proc(hFile: rawptr, lpBuffer: rawptr, nNumberOfBytesToWrite: u32, lpNumberOfBytesWritten: ^u32, lpOverlapped: rawptr) -> b32 ---
 	GetLastError         :: proc() -> u32 ---
+
+	ExitProcess          :: proc(code: u32) -> ! ---
 }
 
 _stderr_write :: proc "contextless" (data: []byte) -> (n: int, err: _OS_Errno) #no_bounds_check {
@@ -49,3 +51,7 @@ _stderr_write :: proc "contextless" (data: []byte) -> (n: int, err: _OS_Errno) #
 	n = int(total_write)
 	return
 }
+
+_exit :: proc "contextless" (code: int) -> ! {
+	ExitProcess(u32(code))
+}