1 files changed, 76 insertions, 0 deletions
diff --git a/gdb/nat/linux-namespaces.h b/gdb/nat/linux-namespaces.h
new file mode 100644
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+++ b/gdb/nat/linux-namespaces.h
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+/* Linux namespaces(7) support.
+
+   Copyright (C) 2015 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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 3 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 LINUX_NAMESPACES_H
+#define LINUX_NAMESPACES_H
+
+/* Set to nonzero to enable debugging of Linux namespaces code.  */
+
+extern int debug_linux_namespaces;
+
+/* Enumeration of Linux namespace types.  */
+
+enum linux_ns_type
+  {
+    /* IPC namespace: System V IPC, POSIX message queues.  */
+    LINUX_NS_IPC,
+
+    /* Mount namespace: mount points.  */
+    LINUX_NS_MNT,
+
+    /* Network namespace: network devices, stacks, ports, etc.  */
+    LINUX_NS_NET,
+
+    /* PID namespace: process IDs.  */
+    LINUX_NS_PID,
+
+    /* User namespace: user and group IDs.  */
+    LINUX_NS_USER,
+
+    /* UTS namespace: hostname and NIS domain name.  */
+    LINUX_NS_UTS,
+
+    /* Number of Linux namespaces.  */
+    NUM_LINUX_NS_TYPES
+  };
+
+/* Return nonzero if process PID has the same TYPE namespace as the
+   calling process, or if the kernel does not support TYPE namespaces
+   (in which case there is only one TYPE namespace).  Return zero if
+   the kernel supports TYPE namespaces and the two processes have
+   different TYPE namespaces.  */
+
+extern int linux_ns_same (pid_t pid, enum linux_ns_type type);
+
+/* Like gdb_open_cloexec, but in the mount namespace of process
+   PID.  */
+
+extern int linux_mntns_open_cloexec (pid_t pid, const char *filename,
+				     int flags, mode_t mode);
+
+/* Like unlink(2), but in the mount namespace of process PID.  */
+
+extern int linux_mntns_unlink (pid_t pid, const char *filename);
+
+/* Like readlink(2), but in the mount namespace of process PID.  */
+
+extern ssize_t linux_mntns_readlink (pid_t pid, const char *filename,
+				     char *buf, size_t bufsiz);
+
+#endif /* LINUX_NAMESPACES_H */