Initial commit

1 files changed, 69 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
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+/*
+ * Copyright (c) 2017 Richard Braun.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+
+#include <lib/macros.h>
+#include <lib/shell.h>
+
+#include "cpu.h"
+#include "i8254.h"
+#include "i8259.h"
+#include "mem.h"
+#include "panic.h"
+#include "sw.h"
+#include "thread.h"
+#include "timer.h"
+#include "uart.h"
+
+/*
+ * XXX The Clang compiler apparently doesn't like the lack of prototype for
+ * the main function in free standing mode.
+ */
+void main(void);
+
+/*
+ * This function is the main entry point for C code. It's called from
+ * assembly code in the boot module, very soon after control is passed
+ * to the kernel.
+ */
+void
+main(void)
+{
+    thread_bootstrap();
+    cpu_setup();
+    i8259_setup();
+    i8254_setup();
+    uart_setup();
+    mem_setup();
+    thread_setup();
+    timer_setup();
+    shell_setup();
+    sw_setup();
+
+    printf("X1 " QUOTE(VERSION) "\n\n");
+
+    thread_enable_scheduler();
+
+    /* Never reached */
+}