1 files changed, 98 insertions, 0 deletions
diff --git a/bsd-user/freebsd/os-misc.h b/bsd-user/freebsd/os-misc.h
new file mode 100644
index 0000000000..71145764a4
--- /dev/null
+++ b/bsd-user/freebsd/os-misc.h
@@ -0,0 +1,98 @@
+/*
+ *  miscellaneous FreeBSD system call shims
+ *
+ *  Copyright (c) 2013-14 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/>.
+ */
+
+#ifndef OS_MISC_H
+#define OS_MISC_H
+
+#include <sys/cpuset.h>
+#include <sys/random.h>
+#include <sched.h>
+
+/*
+ * shm_open2 isn't exported, but the __sys_ alias is. We can use either for the
+ * static version, but to dynamically link we have to use the sys version.
+ */
+int __sys_shm_open2(const char *path, int flags, mode_t mode, int shmflags,
+    const char *);
+
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300048
+/* shm_open2(2) */
+static inline abi_long do_freebsd_shm_open2(abi_ulong pathptr, abi_ulong flags,
+    abi_long mode, abi_ulong shmflags, abi_ulong nameptr)
+{
+    int ret;
+    void *uname, *upath;
+
+    if (pathptr == (uintptr_t)SHM_ANON) {
+        upath = SHM_ANON;
+    } else {
+        upath = lock_user_string(pathptr);
+        if (upath == NULL) {
+            return -TARGET_EFAULT;
+        }
+    }
+
+    uname = NULL;
+    if (nameptr != 0) {
+        uname = lock_user_string(nameptr);
+        if (uname == NULL) {
+            unlock_user(upath, pathptr, 0);
+            return -TARGET_EFAULT;
+        }
+    }
+    ret = get_errno(__sys_shm_open2(upath,
+                target_to_host_bitmask(flags, fcntl_flags_tbl), mode,
+                target_to_host_bitmask(shmflags, shmflag_flags_tbl), uname));
+
+    if (upath != SHM_ANON) {
+        unlock_user(upath, pathptr, 0);
+    }
+    if (uname != NULL) {
+        unlock_user(uname, nameptr, 0);
+    }
+    return ret;
+}
+#endif /* __FreeBSD_version >= 1300048 */
+
+#if defined(__FreeBSD_version) && __FreeBSD_version >= 1300049
+/* shm_rename(2) */
+static inline abi_long do_freebsd_shm_rename(abi_ulong fromptr, abi_ulong toptr,
+        abi_ulong flags)
+{
+    int ret;
+    void *ufrom, *uto;
+
+    ufrom = lock_user_string(fromptr);
+    if (ufrom == NULL) {
+        return -TARGET_EFAULT;
+    }
+    uto = lock_user_string(toptr);
+    if (uto == NULL) {
+        unlock_user(ufrom, fromptr, 0);
+        return -TARGET_EFAULT;
+    }
+    ret = get_errno(shm_rename(ufrom, uto, flags));
+    unlock_user(ufrom, fromptr, 0);
+    unlock_user(uto, toptr, 0);
+
+    return ret;
+}
+#endif /* __FreeBSD_version >= 1300049 */
+
+#endif /* OS_MISC_H */