[3/5] Rename TARGET_SYSROOT_PREFIX as TARGET_FILENAME_PREFIX

diff --git a/gdb/exec.c b/gdb/exec.c
index f1b1049..bbb7798 100644
--- a/gdb/exec.c
+++ b/gdb/exec.c
@@ -225,7 +225,7 @@  exec_file_attach (const char *filename, int from_tty)
       if (is_target_filename (filename))
 	{
 	  if (target_filesystem_is_local ())
-	    filename += strlen (TARGET_SYSROOT_PREFIX);
+	    filename += strlen (TARGET_FILENAME_PREFIX);
 	  else
 	    load_via_target = 1;
 	}
@@ -235,8 +235,8 @@  exec_file_attach (const char *filename, int from_tty)
 	  /* gdb_bfd_fopen does not support "target:" filenames.  */
 	  if (write_files)
 	    warning (_("writing into executable files is "
-		       "not supported for %s sysroots"),
-		     TARGET_SYSROOT_PREFIX);
+		       "not supported for %s filenames"),
+		     TARGET_FILENAME_PREFIX);
 
 	  scratch_pathname = xstrdup (filename);
 	  make_cleanup (xfree, scratch_pathname);
diff --git a/gdb/gdb_bfd.c b/gdb/gdb_bfd.c
index 1781d80..3afcf5f 100644
--- a/gdb/gdb_bfd.c
+++ b/gdb/gdb_bfd.c
@@ -144,7 +144,7 @@  eq_bfd (const void *a, const void *b)
 int
 is_target_filename (const char *name)
 {
-  return startswith (name, TARGET_SYSROOT_PREFIX);
+  return startswith (name, TARGET_FILENAME_PREFIX);
 }
 
 /* See gdb_bfd.h.  */
@@ -223,7 +223,7 @@  gdb_bfd_iovec_fileio_open (struct bfd *abfd, void *inferior)
   gdb_assert (is_target_filename (filename));
 
   fd = target_fileio_open ((struct inferior *) inferior,
-			   filename + strlen (TARGET_SYSROOT_PREFIX),
+			   filename + strlen (TARGET_FILENAME_PREFIX),
 			   FILEIO_O_RDONLY, 0,
 			   &target_errno);
   if (fd == -1)
@@ -336,7 +336,7 @@  gdb_bfd_open (const char *name, const char *target, int fd)
 				      gdb_bfd_iovec_fileio_fstat);
 	}
 
-      name += strlen (TARGET_SYSROOT_PREFIX);
+      name += strlen (TARGET_FILENAME_PREFIX);
     }
 
   if (gdb_bfd_cache == NULL)
diff --git a/gdb/gdb_bfd.h b/gdb/gdb_bfd.h
index 8fbdf36..2e1e901 100644
--- a/gdb/gdb_bfd.h
+++ b/gdb/gdb_bfd.h
@@ -27,20 +27,20 @@  DECLARE_REGISTRY (bfd);
 /* If supplied a path starting with this sequence, gdb_bfd_open will
    open BFDs using target fileio operations.  */
 
-#define TARGET_SYSROOT_PREFIX "target:"
+#define TARGET_FILENAME_PREFIX "target:"
 
-/* Returns nonzero if NAME starts with TARGET_SYSROOT_PREFIX, zero
+/* Returns nonzero if NAME starts with TARGET_FILENAME_PREFIX, zero
    otherwise.  */
 
 int is_target_filename (const char *name);
 
 /* Returns nonzero if the filename associated with ABFD starts with
-   TARGET_SYSROOT_PREFIX, zero otherwise.  */
+   TARGET_FILENAME_PREFIX, zero otherwise.  */
 
 int gdb_bfd_has_target_filename (struct bfd *abfd);
 
 /* Open a read-only (FOPEN_RB) BFD given arguments like bfd_fopen.
-   If NAME starts with TARGET_SYSROOT_PREFIX then the BFD will be
+   If NAME starts with TARGET_FILENAME_PREFIX then the BFD will be
    opened using target fileio operations if necessary.  Returns NULL
    on error.  On success, returns a new reference to the BFD, which
    must be freed with gdb_bfd_unref.  BFDs returned by this call are
@@ -48,7 +48,7 @@  int gdb_bfd_has_target_filename (struct bfd *abfd);
    then after this call it is owned by BFD.  If the BFD was not
    accessed using target fileio operations then the filename
    associated with the BFD and accessible with bfd_get_filename will
-   not be exactly NAME but rather NAME with TARGET_SYSROOT_PREFIX
+   not be exactly NAME but rather NAME with TARGET_FILENAME_PREFIX
    stripped.  */
 
 struct bfd *gdb_bfd_open (const char *name, const char *target, int fd);
diff --git a/gdb/remote-sim.c b/gdb/remote-sim.c
index 82c129d..58e1ce3 100644
--- a/gdb/remote-sim.c
+++ b/gdb/remote-sim.c
@@ -675,7 +675,7 @@  gdbsim_open (const char *args, int from_tty)
 
   sysroot = gdb_sysroot;
   if (is_target_filename (sysroot))
-    sysroot += strlen (TARGET_SYSROOT_PREFIX);
+    sysroot += strlen (TARGET_FILENAME_PREFIX);
 
   if (remote_debug)
     fprintf_unfiltered (gdb_stdlog,
diff --git a/gdb/solib.c b/gdb/solib.c
index eb933c0..32931da 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -167,7 +167,7 @@  solib_find_1 (char *in_pathname, int *fd, int is_solib)
      for all local files regardless of whether a "target:" prefix was
      used.  */
   if (is_target_filename (sysroot) && target_filesystem_is_local ())
-    sysroot += strlen (TARGET_SYSROOT_PREFIX);
+    sysroot += strlen (TARGET_FILENAME_PREFIX);
 
   /* Strip any trailing slashes from the absolute prefix.  */
   prefix_len = orig_prefix_len = strlen (sysroot);
@@ -239,7 +239,7 @@  solib_find_1 (char *in_pathname, int *fd, int is_solib)
 	There's no need to check for drive spec explicitly, as we only
 	get here if IN_PATHNAME is considered an absolute path.  */
       need_dir_separator = !(IS_DIR_SEPARATOR (in_pathname[0])
-			     || strcmp (TARGET_SYSROOT_PREFIX, sysroot) == 0);
+			     || strcmp (TARGET_FILENAME_PREFIX, sysroot) == 0);
 
       /* Cat the prefixed pathname together.  */
       temp_pathname = concat (sysroot,
@@ -1477,7 +1477,7 @@  gdb_sysroot_changed (char *ignored, int from_tty,
 		     struct cmd_list_element *e)
 {
   const char *old_prefix = "remote:";
-  const char *new_prefix = TARGET_SYSROOT_PREFIX;
+  const char *new_prefix = TARGET_FILENAME_PREFIX;
 
   if (startswith (gdb_sysroot, old_prefix))
     {