Eliminate target_fileio_open_warn_if_slow

This basically makes target_fileio_open_1 extern, renamed to
target_fileio_open, and eliminates the current
target_fileio_open_warn_if_slow and target_fileio_open.

A following parameter will want to change gdb_bfd_iovec_fileio_open,
the only caller of target_fileio_open_warn_if_slow, to pass down
"warn_if_slow" true/false from the caller, instead of hardcoding
"warn_if_slow" true.

gdb/ChangeLog:
2020-05-19  Pedro Alves  <palves@redhat.com>

	* gdb_bfd.c (gdb_bfd_iovec_fileio_open): Adjust.
	* target.c (target_fileio_open_1): Rename to target_fileio_open
	and make extern.  Use bool.
	(target_fileio_open, target_fileio_open_warn_if_slow): Delete.
	(target_fileio_read_alloc_1): Adjust.
	* target.h (target_fileio_open): Add 'warn_if_slow' parameter.
	(target_fileio_open_warn_if_slow): Delete declaration.

4 files changed, 26 insertions, 46 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a03be43..643b4eb 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,15 @@
 2020-05-19  Pedro Alves  <palves@redhat.com>
 
+	* gdb_bfd.c (gdb_bfd_iovec_fileio_open): Adjust.
+	* target.c (target_fileio_open_1): Rename to target_fileio_open
+	and make extern.  Use bool.
+	(target_fileio_open, target_fileio_open_warn_if_slow): Delete.
+	(target_fileio_read_alloc_1): Adjust.
+	* target.h (target_fileio_open): Add 'warn_if_slow' parameter.
+	(target_fileio_open_warn_if_slow): Delete declaration.
+
+2020-05-19  Pedro Alves  <palves@redhat.com>
+
 	* gdb_bfd.h: (gdb_bfd_open): Default to 'fd' parameter to -1.
 	Adjust all callers.
 
diff --git a/gdb/gdb_bfd.c b/gdb/gdb_bfd.c
index 26262bf..61872a0 100644
--- a/gdb/gdb_bfd.c
+++ b/gdb/gdb_bfd.c
@@ -284,11 +284,10 @@ gdb_bfd_iovec_fileio_open (struct bfd *abfd, void *inferior)
 
   gdb_assert (is_target_filename (filename));
 
-  fd = target_fileio_open_warn_if_slow ((struct inferior *) inferior,
-					filename
-					+ strlen (TARGET_SYSROOT_PREFIX),
-					FILEIO_O_RDONLY, 0,
-					&target_errno);
+  fd = target_fileio_open ((struct inferior *) inferior,
+			   filename + strlen (TARGET_SYSROOT_PREFIX),
+			   FILEIO_O_RDONLY, 0, true,
+			   &target_errno);
   if (fd == -1)
     {
       errno = fileio_errno_to_host (target_errno);
diff --git a/gdb/target.c b/gdb/target.c
index 6982a80..82c405a8 100644
--- a/gdb/target.c
+++ b/gdb/target.c
@@ -2775,13 +2775,11 @@ target_ops::fileio_readlink (struct inferior *inf, const char *filename,
   return {};
 }
 
-/* Helper for target_fileio_open and
-   target_fileio_open_warn_if_slow.  */
+/* See target.h.  */
 
-static int
-target_fileio_open_1 (struct inferior *inf, const char *filename,
-		      int flags, int mode, int warn_if_slow,
-		      int *target_errno)
+int
+target_fileio_open (struct inferior *inf, const char *filename,
+		    int flags, int mode, bool warn_if_slow, int *target_errno)
 {
   for (target_ops *t = default_fileio_target (); t != NULL; t = t->beneath ())
     {
@@ -2814,27 +2812,6 @@ target_fileio_open_1 (struct inferior *inf, const char *filename,
 /* See target.h.  */
 
 int
-target_fileio_open (struct inferior *inf, const char *filename,
-		    int flags, int mode, int *target_errno)
-{
-  return target_fileio_open_1 (inf, filename, flags, mode, 0,
-			       target_errno);
-}
-
-/* See target.h.  */
-
-int
-target_fileio_open_warn_if_slow (struct inferior *inf,
-				 const char *filename,
-				 int flags, int mode, int *target_errno)
-{
-  return target_fileio_open_1 (inf, filename, flags, mode, 1,
-			       target_errno);
-}
-
-/* See target.h.  */
-
-int
 target_fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
 		      ULONGEST offset, int *target_errno)
 {
@@ -3036,7 +3013,7 @@ target_fileio_read_alloc_1 (struct inferior *inf, const char *filename,
   int target_errno;
 
   scoped_target_fd fd (target_fileio_open (inf, filename, FILEIO_O_RDONLY,
-					   0700, &target_errno));
+					   0700, false, &target_errno));
   if (fd.get () == -1)
     return -1;
 
diff --git a/gdb/target.h b/gdb/target.h
index 9a1dd80..37bfb29 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -2135,21 +2135,15 @@ extern int target_search_memory (CORE_ADDR start_addr,
   current_top_target ()->filesystem_is_local ()
 
 /* Open FILENAME on the target, in the filesystem as seen by INF,
-   using FLAGS and MODE.  If INF is NULL, use the filesystem seen
-   by the debugger (GDB or, for remote targets, the remote stub).
-   Return a target file descriptor, or -1 if an error occurs (and
-   set *TARGET_ERRNO).  */
+   using FLAGS and MODE.  If INF is NULL, use the filesystem seen by
+   the debugger (GDB or, for remote targets, the remote stub).  Return
+   a target file descriptor, or -1 if an error occurs (and set
+   *TARGET_ERRNO).  If WARN_IF_SLOW is true, print a warning message
+   if the file is being accessed over a link that may be slow.  */
 extern int target_fileio_open (struct inferior *inf,
 			       const char *filename, int flags,
-			       int mode, int *target_errno);
-
-/* Like target_fileio_open, but print a warning message if the
-   file is being accessed over a link that may be slow.  */
-extern int target_fileio_open_warn_if_slow (struct inferior *inf,
-					    const char *filename,
-					    int flags,
-					    int mode,
-					    int *target_errno);
+			       int mode, bool warn_if_slow,
+			       int *target_errno);
 
 /* Write up to LEN bytes from WRITE_BUF to FD on the target.
    Return the number of bytes written, or -1 if an error occurs