Minimal device system, implement terminal device and libterminal

libterminal/Makefile

@@ -0,0 +1,28 @@
+cc := clang
+o :=
+c :=
+cflags  := -isystem . -isystem ../libmsl
+buildtype ?= release
+
+include src.mk
+include ../generic/flags.mk
+include ../$(platform)/flags.mk
+
+all: build/libterminal.a
+
+build/libterminal.a: $(o)
+	llvm-ar rcs $@ $^
+
+%.o: %.c
+	$(cc) -c -o $@ $(cflags) $<
+
+%.o: %.S
+	$(cc) -c -o $@ $(cflags) $<
+
+clean:
+	rm -f $(o) build/libterminal.a
+
+format:
+	clang-format -i $$(git ls-files '*.c' '*.h')
+
+.PHONY: all clean format

libterminal/src.mk

@@ -0,0 +1 @@
+include terminal/src.mk

libterminal/terminal/.gitignore

@@ -0,0 +1 @@
+*.o

libterminal/terminal/device.h

@@ -0,0 +1,8 @@
+#ifndef _LIBTERMINAL_TERMINAL_DEVICE_H
+#define _LIBTERMINAL_TERMINAL_DEVICE_H
+
+#define TERMINAL_DEVICE 1
+
+#include <m/terminal_device.h>
+
+#endif // _LIBTERMINAL_TERMINAL_DEVICE_H

libterminal/terminal/src.mk

@@ -0,0 +1,3 @@
+c += terminal/terminal.c
+
+o += terminal/terminal.o

libterminal/terminal/terminal.c

@@ -0,0 +1,8 @@
+#include <stddef.h>
+#include <terminal/device.h>
+#include <terminal/terminal.h>
+#include <m/system.h>
+
+void terminal_print (const char* string, size_t len) {
+  device_do (TERMINAL_DEVICE, TERMINAL_PUTSTR, (void*)string, &len, NULL, NULL);
+}

libterminal/terminal/terminal.h

@@ -0,0 +1,8 @@
+#ifndef _LIBTERMINAL_TERMINAL_TERMINAL_H
+#define _LIBTERMINAL_TERMINAL_TERMINAL_H
+
+#include <stddef.h>
+
+void terminal_print (const char* string, size_t len);
+
+#endif // _LIBTERMINAL_TERMINAL_TERMINAL_H