cpu/native: Use ztimer instead of xtimer

cpu/native/Makefile.dep

@@ -41,11 +41,7 @@ ifneq (,$(filter socket_zep,$(USEMODULE)))
 endif
 
 ifneq (,$(filter libc_gettimeofday,$(USEMODULE)))
-  USEMODULE += xtimer
-  ifneq (,$(filter ztimer_xtimer_compat,$(USEMODULE)))
-    # requires 64bit timestamps
-    USEMODULE += ztimer64_xtimer_compat
-  endif
+  USEMODULE += ztimer64_usec
 endif
 
 USEMODULE += periph

cpu/native/periph/timer.c

@@ -18,7 +18,7 @@
  * Uses POSIX realtime clock and POSIX itimer to mimic hardware.
  *
  * This is based on native's hwtimer implementation by Ludwig Knüpfer.
- * I removed the multiplexing, as xtimer does the same. (kaspar)
+ * I removed the multiplexing, as ztimer does the same. (kaspar)
  *
  * @author      Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
  * @author      Kaspar Schleiser <kaspar@schleiser.de>

cpu/native/syscalls.c

@@ -31,7 +31,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdarg.h>
-#ifdef MODULE_XTIMER
+#ifdef MODULE_LIBC_GETTIMEOFDAY
 #include <sys/time.h>
 #endif
 #include <ifaddrs.h>
@@ -39,7 +39,10 @@
 
 #include "cpu.h"
 #include "irq.h"
-#include "xtimer.h"
+#ifdef MODULE_LIBC_GETTIMEOFDAY
+#include "time_units.h"
+#include "ztimer64.h"
+#endif
 #include "stdio_base.h"
 
 #include "kernel_defines.h"
@@ -485,7 +488,7 @@ int getpid(void)
 int _gettimeofday(struct timeval *tp, void *restrict tzp)
 {
     (void)tzp;
-    uint64_t now = xtimer_now_usec64();
+    uint64_t now = ztimer64_now(ZTIMER64_USEC);
     tp->tv_sec  = now / US_PER_SEC;
     tp->tv_usec = now - tp->tv_sec;
     return 0;

sys/Kconfig

@@ -57,8 +57,7 @@ endchoice
 
 config MODULE_LIBC_GETTIMEOFDAY
     bool "Support for gettimeofday()"
-    select MODULE_XTIMER
-    select MODULE_ZTIMER64_XTIMER_COMPAT if MODULE_ZTIMER_XTIMER_COMPAT
+    select ZTIMER64_USEC
 
 rsource "Kconfig.newlib"
 rsource "Kconfig.picolibc"