Introduce target_filesystem_is_local

This commit introduces a new target method target_filesystem_is_local
which can be used to determine whether or not the filesystem accessed
by the target_fileio_* methods is the local filesystem.

gdb/ChangeLog:

	* target.h (struct target_ops) <to_filesystem_is_local>:
	New field.
	(target_filesystem_is_local): New macro.
	* target-delegates.c: Regenerate.
	* remote.c (remote_filesystem_is_local): New function.
	(init_remote_ops): Initialize to_filesystem_is_local.

1 files changed, 11 insertions, 0 deletions

diff --git a/gdb/target.h b/gdb/target.h
index c4440ce..f57e431 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -825,6 +825,12 @@ struct target_ops
 
     /* Target file operations.  */
 
+    /* Return nonzero if the filesystem accessed by the
+       target_fileio_* methods is the local filesystem,
+       zero otherwise.  */
+    int (*to_filesystem_is_local) (struct target_ops *)
+      TARGET_DEFAULT_RETURN (1);
+
     /* Open FILENAME on the target, using FLAGS and MODE.  Return a
        target file descriptor, or -1 if an error occurs (and set
        *TARGET_ERRNO).  */
@@ -1921,6 +1927,11 @@ extern int target_search_memory (CORE_ADDR start_addr,
 
 /* Target file operations.  */
 
+/* Return nonzero if the filesystem accessed by the target_fileio_*
+   methods is the local filesystem, zero otherwise.  */
+#define target_filesystem_is_local() \
+  current_target.to_filesystem_is_local (&current_target)
+
 /* Open FILENAME on the target, using FLAGS and MODE.  Return a
    target file descriptor, or -1 if an error occurs (and set
    *TARGET_ERRNO).  */