PR ld/12549

[binutils-gdb.git] / gdb / ui-file.c

diff --git a/gdb/ui-file.c b/gdb/ui-file.c
index 68089e60dab82f2c1716e95e0a69746d353eac5a..bb904c9ad499a869a31df61921aff029ebda373e 100644 (file)
--- a/gdb/ui-file.c
+++ b/gdb/ui-file.c
@@ -1,6 +1,6 @@
 /* UI_FILE - a generic STDIO like output stream.
 
-   Copyright (C) 1999-2002, 2007-2012 Free Software Foundation, Inc.
+   Copyright (C) 1999-2013 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -36,6 +36,7 @@ static ui_file_flush_ftype null_file_flush;
 static ui_file_delete_ftype null_file_delete;
 static ui_file_rewind_ftype null_file_rewind;
 static ui_file_put_ftype null_file_put;
+static ui_file_fseek_ftype null_file_fseek;
 
 struct ui_file
   {
@@ -49,6 +50,7 @@ struct ui_file
     ui_file_isatty_ftype *to_isatty;
     ui_file_rewind_ftype *to_rewind;
     ui_file_put_ftype *to_put;
+    ui_file_fseek_ftype *to_fseek;
     void *to_data;
   };
 int ui_file_magic;
@@ -68,6 +70,7 @@ ui_file_new (void)
   set_ui_file_isatty (file, null_file_isatty);
   set_ui_file_rewind (file, null_file_rewind);
   set_ui_file_put (file, null_file_put);
+  set_ui_file_fseek (file, null_file_fseek);
   return file;
 }
 
@@ -170,6 +173,14 @@ null_file_delete (struct ui_file *file)
   return;
 }
 
+static int
+null_file_fseek (struct ui_file *stream, long offset, int whence)
+{
+  errno = EBADF;
+
+  return -1;
+}
+
 void *
 ui_file_data (struct ui_file *file)
 {
@@ -227,6 +238,12 @@ ui_file_read (struct ui_file *file, char *buf, long length_buf)
   return file->to_read (file, buf, length_buf); 
 }
 
+int
+ui_file_fseek (struct ui_file *file, long offset, int whence)
+{
+  return file->to_fseek (file, offset, whence);
+}
+
 void
 fputs_unfiltered (const char *buf, struct ui_file *file)
 {
@@ -234,61 +251,67 @@ fputs_unfiltered (const char *buf, struct ui_file *file)
 }
 
 void
-set_ui_file_flush (struct ui_file *file, ui_file_flush_ftype *flush)
+set_ui_file_flush (struct ui_file *file, ui_file_flush_ftype *flush_ptr)
 {
-  file->to_flush = flush;
+  file->to_flush = flush_ptr;
 }
 
 void
-set_ui_file_isatty (struct ui_file *file, ui_file_isatty_ftype *isatty)
+set_ui_file_isatty (struct ui_file *file, ui_file_isatty_ftype *isatty_ptr)
 {
-  file->to_isatty = isatty;
+  file->to_isatty = isatty_ptr;
 }
 
 void
-set_ui_file_rewind (struct ui_file *file, ui_file_rewind_ftype *rewind)
+set_ui_file_rewind (struct ui_file *file, ui_file_rewind_ftype *rewind_ptr)
 {
-  file->to_rewind = rewind;
+  file->to_rewind = rewind_ptr;
 }
 
 void
-set_ui_file_put (struct ui_file *file, ui_file_put_ftype *put)
+set_ui_file_put (struct ui_file *file, ui_file_put_ftype *put_ptr)
 {
-  file->to_put = put;
+  file->to_put = put_ptr;
 }
 
 void
 set_ui_file_write (struct ui_file *file,
-                   ui_file_write_ftype *write)
+                   ui_file_write_ftype *write_ptr)
 {
-  file->to_write = write;
+  file->to_write = write_ptr;
 }
 
 void
 set_ui_file_write_async_safe (struct ui_file *file,
-                             ui_file_write_async_safe_ftype *write_async_safe)
+                             ui_file_write_async_safe_ftype *write_async_safe_ptr)
 {
-  file->to_write_async_safe = write_async_safe;
+  file->to_write_async_safe = write_async_safe_ptr;
 }
 
 void
-set_ui_file_read (struct ui_file *file, ui_file_read_ftype *read)
+set_ui_file_read (struct ui_file *file, ui_file_read_ftype *read_ptr)
 {
-  file->to_read = read;
+  file->to_read = read_ptr;
 }
 
 void
-set_ui_file_fputs (struct ui_file *file, ui_file_fputs_ftype *fputs)
+set_ui_file_fputs (struct ui_file *file, ui_file_fputs_ftype *fputs_ptr)
 {
-  file->to_fputs = fputs;
+  file->to_fputs = fputs_ptr;
+}
+
+void
+set_ui_file_fseek (struct ui_file *file, ui_file_fseek_ftype *fseek_ptr)
+{
+  file->to_fseek = fseek_ptr;
 }
 
 void
 set_ui_file_data (struct ui_file *file, void *data,
-                 ui_file_delete_ftype *delete)
+                 ui_file_delete_ftype *delete_ptr)
 {
   file->to_data = data;
-  file->to_delete = delete;
+  file->to_delete = delete_ptr;
 }
 
 /* ui_file utility function for converting a ``struct ui_file'' into
@@ -469,6 +492,7 @@ static ui_file_isatty_ftype stdio_file_isatty;
 static ui_file_delete_ftype stdio_file_delete;
 static struct ui_file *stdio_file_new (FILE *file, int close_p);
 static ui_file_flush_ftype stdio_file_flush;
+static ui_file_fseek_ftype stdio_file_fseek;
 
 static int stdio_file_magic;
 
@@ -499,6 +523,7 @@ stdio_file_new (FILE *file, int close_p)
   set_ui_file_fputs (ui_file, stdio_file_fputs);
   set_ui_file_read (ui_file, stdio_file_read);
   set_ui_file_isatty (ui_file, stdio_file_isatty);
+  set_ui_file_fseek (ui_file, stdio_file_fseek);
   return ui_file;
 }
 
@@ -616,6 +641,18 @@ stdio_file_isatty (struct ui_file *file)
   return (isatty (stdio->fd));
 }
 
+static int
+stdio_file_fseek (struct ui_file *file, long offset, int whence)
+{
+  struct stdio_file *stdio = ui_file_data (file);
+
+  if (stdio->magic != &stdio_file_magic)
+    internal_error (__FILE__, __LINE__,
+                   _("stdio_file_fseek: bad magic number"));
+
+  return fseek (stdio->file, offset, whence);
+}
+
 /* Like fdopen().  Create a ui_file from a previously opened FILE.  */
 
 struct ui_file *