2014-12-15 Stefan Wallentowitz <stefan.wallentowitz@tum.de>

* or1k/Makefile.in: Add libor1k
        * or1k/README: New file
        * or1k/caches-asm.S: New file
        * or1k/exceptions-asm.S: New file
        * or1k/exceptions.c: New file
        * or1k/impure.c: New file
        * or1k/include/or1k-nop.h: New file
        * or1k/include/or1k-support.h: New file
        * or1k/interrupts-asm.S: New file
        * or1k/interrupts.c: New file
        * or1k/mmu-asm.S: New file
        * or1k/or1k-internals.h: New file
        * or1k/or1k_uart.c: New file
        * or1k/or1k_uart.h: New file
        * or1k/outbyte.S: New file
        * or1k/sbrk.c: New file
        * or1k/sync-asm.S: New file
        * or1k/syscalls.c: New file
        * or1k/timer.c: New file
        * or1k/util.c: New file

libgloss/or1k/syscalls.c

@@ -0,0 +1,160 @@
+/* syscalls.c -- reentrant syscalls for OpenRISC 1000.
+ *
+ * Copyright (c) 2011, 2014 Authors
+ *
+ * Contributor Julius Baxter <juliusbaxter@gmail.com>
+ * Contributor Stefan Wallentowitz <stefan.wallentowitz@tum.de>
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include <errno.h>
+#include <reent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include "board.h"
+
+/* Write is actually the only thing we provide. All other are stubs.. */
+
+extern void _or1k_outbyte(char c);
+
+_ssize_t
+_write_r(struct _reent * reent, int fd, const void *buf, size_t nbytes)
+{
+	int i;
+	char* b = (char*) buf;
+
+	for (i = 0; i < nbytes; i++) {
+		if (*(b + i) == '\n') {
+			_or1k_outbyte ('\r');
+		}
+		_or1k_outbyte (*(b + i));
+	}
+	return (nbytes);
+}
+
+void
+_exit(int rc)
+{
+	_or1k_board_exit();
+	while (1) {}
+}
+
+int
+_close_r(struct _reent *reent, int fildes)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+char *__env[1] = { 0 };
+char **environ = __env;
+
+int
+_execve_r(struct _reent *reent, const char *name, char * const *argv,
+		char * const *env)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_fork_r(struct _reent *reent)
+{
+	errno = ENOSYS;
+	return -1;
+}
+
+int
+_fstat_r(struct _reent *reent, int fildes, struct stat *st)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_getpid_r(struct _reent *reent)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_gettimeofday(struct _reent *reent, struct timeval  *ptimeval, void *ptimezone)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_isatty_r(struct _reent *reent, int file)
+{
+	reent->_errno = ENOSYS;
+	return 0;
+}
+
+int
+_kill_r(struct _reent *reent, int pid, int sig)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_link_r(struct _reent *reent, const char *existing, const char *new)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+_off_t
+_lseek_r(struct _reent *reent, int file, _off_t ptr, int dir)
+{
+	errno = ENOSYS;
+	return -1;
+}
+
+int
+_open(struct _reent *reent, char *file, int flags, int mode)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+_ssize_t
+_read_r(struct _reent *reent, int file, void *ptr, size_t len)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_readlink_r(struct _reent *reent, const char *path, char *buf, size_t bufsize)
+{
+	reent->_errno = ENOSYS;
+	return -1;
+}
+
+int
+_stat_r(struct _reent *reent, const char *path, struct stat *buf)
+{
+	reent->_errno = EIO;
+	return -1;
+}
+
+int
+_unlink_r(struct _reent *reent, const char * path)
+{
+	reent->_errno = EIO;
+	return (-1);
+}
+