arch: introduce include convenience macro

include/arch/arch_include.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+/* See the end of this file for copyright, licensing, and warranty information. */
+
+#pragma once
+
+#ifdef ARCH_AT91SAM3X8E
+#define ARCH_INCLUDE(file) <arch/at91sam3x8e/file>
+#else
+#error "Unsupported architecture"
+#endif
+
+/*
+ * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
+ * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */

include/arch/hardware.h

@@ -3,6 +3,8 @@
 
 #pragma once
 
+#include <arch/arch_include.h>
+
 /**
  * Block the CPU by continuously checking the same expression in an
  * infinite loop, until the condition is true.  Useful for polling.
@@ -38,13 +40,7 @@ int sys_init(void);
 #define STACK_SIZE 2048U
 #endif
 
-#if defined(ARCH_ATMEGA328P)
+#include ARCH_INCLUDE(hardware.h)
-#error "ATmega328p is not implemented (yet?)"
-#elif defined(ARCH_AT91SAM3X8E)
-#include <arch/at91sam3x8e/hardware.h>
-#else
-#error "Unsupported architecture"
-#endif
 
 /*
  * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>

include/arch/sched.h

@@ -3,6 +3,7 @@
 
 #pragma once
 
+#include <arch/arch_include.h>
 #include <arch/hardware.h>
 
 #include <stdbool.h>
@@ -27,11 +28,7 @@ int arch_sched_hwtimer_init(unsigned int freq);
  */
 void arch_sched_process_init(struct process *process, void (*entry)(void));
 
-#ifdef ARCH_AT91SAM3X8E
+#include ARCH_INCLUDE(sched.h)
-#include <arch/at91sam3x8e/sched.h>
-#else
-#error "Unsupported architecture"
-#endif
 
 /*
  * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>

include/arch/serial.h

@@ -3,16 +3,14 @@
 
 #pragma once
 
+#include <arch/arch_include.h>
+
 #include <ardix/serial.h>
 
 int arch_serial_init(struct serial_interface *interface);
 void arch_serial_exit(struct serial_interface *interface);
 
-#ifdef ARCH_AT91SAM3X8E
+#include ARCH_INCLUDE(serial.h)
-#include <arch/at91sam3x8e/serial.h>
-#else
-#error "Unsupported architecture"
-#endif
 
 /*
  * Copyright (c) 2020 Felix Kopp <sandtler@sandtler.club>