boards/native: Remove macOS as native target

Makefile.include

@@ -205,10 +205,11 @@ include $(RIOTMAKE)/boards.inc.mk
 include $(RIOTMAKE)/dependencies_debug.inc.mk
 
 # Use TOOLCHAIN environment variable to select the toolchain to use.
-# If native, TOOLCHAIN for OSX is llvm
 ifeq ($(BOARD),native)
   ifeq ($(OS),Darwin)
-    TOOLCHAIN ?= llvm
+    $(shell $(COLOR_ECHO) "$(COLOR_RED)"Buildin on macOS is not supported."\
+                          "We recommend vagrant for building:$(COLOR_RESET)"\
+                          "https://github.com/RIOT-OS/RIOT/blob/master/dist/tools/vagrant/README.md 1>&2)
   endif
 endif
 # Use override so that we can redefine a variable set on the command line (as

README.md

@@ -63,7 +63,7 @@ but not limited to:
 * high resolution, long-term timers
 * support 100+ boards based on AVR, MSP430, ESP8266, ESP32, RISC-V,
   ARM7 and ARM Cortex-M
-* the native port allows to run RIOT as-is on Linux, BSD, and MacOS. Multiple
+* the native port allows to run RIOT as-is on Linux and BSD. Multiple
   instances of RIOT running on a single machine can also be interconnected via
   a simple virtual Ethernet bridge
 * IPv6

cpu/native/Kconfig

@@ -38,7 +38,6 @@ config CPU_FAM_NATIVE
 config CPU_MODEL_NATIVE
     bool
     select CPU_FAM_NATIVE
-    select NATIVE_OS_DARWIN if "$(OS)" = "Darwin"
     select NATIVE_OS_LINUX if "$(OS)" = "Linux"
     select NATIVE_OS_FREEBSD if "$(OS)" = "FreeBSD"
 
@@ -54,9 +53,6 @@ config HAS_CPU_NATIVE
         Indicates that the cpu being used is 'native'.
 
 ## OS Variants
-config NATIVE_OS_DARWIN
-    bool
-
 config NATIVE_OS_LINUX
     bool
     select HAS_PERIPH_CAN

cpu/native/Makefile

@@ -6,10 +6,6 @@ ifneq (,$(filter native_vfs,$(USEMODULE)))
   DIRS += vfs
 endif
 
-ifeq ($(OS),Darwin)
-  CFLAGS += -D_XOPEN_SOURCE=600 -D_DARWIN_C_SOURCE
-endif
-
 ifneq (,$(filter netdev_tap,$(USEMODULE)))
   DIRS += netdev_tap
 endif

cpu/native/Makefile.include

@@ -1,10 +1,5 @@
 NATIVEINCLUDES += -I$(RIOTCPU)/native/include -I$(RIOTBASE)/sys/include
 
-# Local include for OSX
-ifeq ($(BUILDOSXNATIVE),1)
-  NATIVEINCLUDES += -I$(RIOTCPU)/native/osx-libc-extra
-endif
-
 ifneq (,$(filter periph_can,$(USEMODULE)))
   ifeq (,$(filter libsocketcan,$(USEPKG)))
     # link system libsocketcan if not using the provided package

cpu/native/README.md

@@ -55,16 +55,10 @@ To create a bridge and two (or count at your option) tap interfaces:
 
     sudo ../../dist/tools/tapsetup/tapsetup [-c [<count>]]
 
-On macOS you need to start the RIOT instance at some point during the script's
-execution. The script will instruct you when to do that.
-
 To delete the bridge and all tap interfaces:
 
     sudo ../../dist/tools/tapsetup/tapsetup -d
 
-For macOS you **have** to run this after killing your RIOT instance and rerun
-`sudo ../../dist/tools/tapsetup [-c [<count>]]` before restarting.
-
 **Please note:** If you want to communicate between RIOT and your host
 operating system, you must not use the `tapsetup` script, but create and
 activate the tap interface manually. On Linux you can do so, by calling

cpu/native/async_read.c

@@ -85,11 +85,6 @@ void native_async_read_add_handler(int fd, void *arg, native_async_read_callback
 
     _add_handler(fd, arg, handler);
 
-    /* tuntap signalled IO is not working in macOS,
-     * * check http://sourceforge.net/p/tuntaposx/bugs/18/ */
-#ifdef __MACH__
-    _sigio_child(_next_index);
-#else
     /* configure fds to send signals on io */
     if (real_fcntl(fd, F_SETOWN, _native_pid) == -1) {
         err(EXIT_FAILURE, "native_async_read_add_handler(): fcntl(F_SETOWN)");
@@ -98,7 +93,6 @@ void native_async_read_add_handler(int fd, void *arg, native_async_read_callback
     if (real_fcntl(fd, F_SETFL, O_NONBLOCK | O_ASYNC) == -1) {
         err(EXIT_FAILURE, "native_async_read_add_handler(): fcntl(F_SETFL)");
     }
-#endif /* not macOS */
 
     _next_index++;
 }

cpu/native/include/cpu_conf.h

@@ -27,28 +27,6 @@ extern "C" {
  *
  * @{
  */
-#ifdef __MACH__ /* macOS */
-#ifndef THREAD_STACKSIZE_DEFAULT
-#define THREAD_STACKSIZE_DEFAULT            (163840)
-#endif
-#ifndef THREAD_STACKSIZE_IDLE
-#define THREAD_STACKSIZE_IDLE               (THREAD_STACKSIZE_DEFAULT)
-#endif
-#ifndef THREAD_EXTRA_STACKSIZE_PRINTF
-#define THREAD_EXTRA_STACKSIZE_PRINTF       (81920)
-#endif
-#ifndef THREAD_EXTRA_STACKSIZE_PRINTF_FLOAT
-#define THREAD_EXTRA_STACKSIZE_PRINTF_FLOAT (81920)
-#endif
-/* for core/include/thread.h */
-#ifndef THREAD_STACKSIZE_MINIMUM
-#define THREAD_STACKSIZE_MINIMUM            (THREAD_STACKSIZE_DEFAULT)
-#endif
-#ifndef ISR_STACKSIZE
-#define ISR_STACKSIZE                       (THREAD_STACKSIZE_DEFAULT)
-#endif
-
-#else /* Linux etc. */
 #ifndef THREAD_STACKSIZE_DEFAULT
 #define THREAD_STACKSIZE_DEFAULT            (8192)
 #endif
@@ -69,7 +47,6 @@ extern "C" {
 #ifndef ISR_STACKSIZE
 #define ISR_STACKSIZE                       (THREAD_STACKSIZE_DEFAULT)
 #endif
-#endif /* OS */
 /** @} */
 
 /**

cpu/native/netdev_tap/netdev_tap.c

@@ -340,10 +340,7 @@ static int _init(netdev_t *netdev)
     }
 
     char *name = dev->tap_name;
-#ifdef __MACH__ /* macOS */
-    char clonedev[255] = "/dev/"; /* XXX bad size */
-    strncpy(clonedev + 5, name, 250);
-#elif defined(__FreeBSD__)
+#ifdef __FreeBSD__
     char clonedev[255] = "/dev/"; /* XXX bad size */
     strncpy(clonedev + 5, name, 250);
 #else /* Linux */
@@ -356,7 +353,7 @@ static int _init(netdev_t *netdev)
     if ((dev->tap_fd = real_open(clonedev, O_RDWR | O_NONBLOCK)) == -1) {
         err(EXIT_FAILURE, "open(%s)", clonedev);
     }
-#if (defined(__MACH__) || defined(__FreeBSD__)) /* macOS/FreeBSD */
+#if __FreeBSD__ /* FreeBSD */
     struct ifaddrs *iflist;
     if (real_getifaddrs(&iflist) == 0) {
         for (struct ifaddrs *cur = iflist; cur; cur = cur->ifa_next) {

cpu/native/periph/qdec.c

@@ -19,15 +19,6 @@
  * @}
  */
 
-#ifdef __MACH__
-#include <mach/clock.h>
-#include <mach/mach_init.h>
-#include <mach/mach_port.h>
-#include <mach/mach_host.h>
-/* Both macOS and RIOT typedef thread_t. timer.c does not use either thread_t. */
-#define thread_t riot_thread_t
-#endif
-
 #include <time.h>
 #include <sys/time.h>
 #include <signal.h>

cpu/native/periph/timer.c

@@ -26,15 +26,6 @@
  * @}
  */
 
-#ifdef __MACH__
-#include <mach/clock.h>
-#include <mach/mach_init.h>
-#include <mach/mach_port.h>
-#include <mach/mach_host.h>
-/* Both macOS and RIOT typedef thread_t. timer.c does not use either thread_t. */
-#define thread_t riot_thread_t
-#endif
-
 #include <time.h>
 #include <sys/time.h>
 #include <signal.h>

doc/doxygen/src/getting-started.md

@@ -29,14 +29,14 @@ A set of common tools and a toolchain for the hardware you target needs to be in
 ### Choosing an Operating System for the Development PC
 
 Most of the RIOT OS developers are using Linux on their development PCs, so you can expect the
-most streamlined experience here. Other POSIX-compliant OSes such as current versions of macOS or
-the various BSD flavours will also be fine - however, we rely on users to report bugs regarding
-tooling incompatibilities here. So expect occasional issues for the development branch and please
-help testing during the feature freeze period, if you develop on macOS or BSD.
-
-Native development on Windows machines is not officially supported. What works well is using Linux
-in a virtual machine, but at much lower performance than running Linux natively. For development
-using the
+most streamlined experience here. Other POSIX-compliant OSes such as the various BSD flavours
+will also be fine - however, we rely on users to report bugs regarding tooling incompatibilities
+here. So expect occasional issues for the development branch and please help testing during the
+feature freeze period, if you develop on macOS or BSD.
+
+Native development on Windows and macOS machines is not officially supported. What works well is using Linux
+in a virtual machine, but at much lower performance than running Linux natively. We also offer Docker images.
+For development on Windows, using the
 [Windows Subsystem for Linux (WSL)](https://en.wikipedia.org/wiki/Windows_Subsystem_for_Linux)
 is a good option
 ([installation instructions here](https://docs.microsoft.com/en-us/windows/wsl/install)), but it

doc/doxygen/src/mainpage.md

@@ -50,7 +50,7 @@ RIOT is developed by an open community that anyone is welcome to join:
 The quickest start                                        {#the-quickest-start}
 ==================
 You can run RIOT on most IoT devices, on open-access testbed hardware (e.g.
-IoT-lab), and also directly as a process on your Linux/FreeBSD/macOS machine (we
+IoT-lab), and also directly as a process on your Linux or FreeBSD machine (we
 call this the `native` port). Try it right now in your terminal window:
 
 ~~~~~~~{.sh}