1 files changed, 92 insertions, 0 deletions
diff --git a/bsd-user/freebsd/os-syscall.c b/bsd-user/freebsd/os-syscall.c
new file mode 100644
index 0000000000..a17ff9f6ec
--- /dev/null
+++ b/bsd-user/freebsd/os-syscall.c
@@ -0,0 +1,92 @@
+/*
+ *  BSD syscalls
+ *
+ *  Copyright (c) 2003-2008 Fabrice Bellard
+ *  Copyright (c) 2013-2014 Stacey D. Son
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * We need the FreeBSD "legacy" definitions. Rust needs the FreeBSD 11 system
+ * calls since it doesn't use libc at all, so we have to emulate that despite
+ * FreeBSD 11 being EOL'd.
+ */
+#define _WANT_FREEBSD11_STAT
+#define _WANT_FREEBSD11_STATFS
+#define _WANT_FREEBSD11_DIRENT
+#define _WANT_KERNEL_ERRNO
+#define _WANT_SEMUN
+#include "qemu/osdep.h"
+#include "qemu/cutils.h"
+#include "qemu/path.h"
+#include <sys/syscall.h>
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <utime.h>
+
+#include "qemu.h"
+#include "qemu-common.h"
+#include "signal-common.h"
+#include "user/syscall-trace.h"
+
+#include "bsd-file.h"
+
+void target_set_brk(abi_ulong new_brk)
+{
+}
+
+/*
+ * errno conversion.
+ */
+abi_long get_errno(abi_long ret)
+{
+    if (ret == -1) {
+        return -host_to_target_errno(errno);
+    } else {
+        return ret;
+    }
+}
+
+int host_to_target_errno(int err)
+{
+    /*
+     * All the BSDs have the property that the error numbers are uniform across
+     * all architectures for a given BSD, though they may vary between different
+     * BSDs.
+     */
+    return err;
+}
+
+bool is_error(abi_long ret)
+{
+    return (abi_ulong)ret >= (abi_ulong)(-4096);
+}
+
+/*
+ * do_syscall() should always have a single exit point at the end so that
+ * actions, such as logging of syscall results, can be performed.  All errnos
+ * that do_syscall() returns must be -TARGET_<errcode>.
+ */
+abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
+                            abi_long arg2, abi_long arg3, abi_long arg4,
+                            abi_long arg5, abi_long arg6, abi_long arg7,
+                            abi_long arg8)
+{
+    return 0;
+}
+
+void syscall_init(void)
+{
+}