GDB 6.1 (excluding .info files)

1 files changed, 1163 insertions, 0 deletions

diff --git a/gnu/usr.bin/binutils/gdb/ui-out.c b/gnu/usr.bin/binutils/gdb/ui-out.c
new file mode 100644
index 00000000000..854ec490ddf
--- /dev/null
+++ b/gnu/usr.bin/binutils/gdb/ui-out.c
@@ -0,0 +1,1163 @@
+/* Output generating routines for GDB.
+
+   Copyright 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
+
+   Contributed by Cygnus Solutions.
+   Written by Fernando Nasser for Cygnus.
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "defs.h"
+#include "gdb_string.h"
+#include "expression.h"		/* For language.h */
+#include "language.h"
+#include "ui-out.h"
+#include "gdb_assert.h"
+
+/* table header structures */
+
+struct ui_out_hdr
+  {
+    int colno;
+    int width;
+    int alignment;
+    char *col_name;
+    char *colhdr;
+    struct ui_out_hdr *next;
+  };
+
+/* Maintain a stack so that the info applicable to the inner most list
+   is always available.  Stack/nested level 0 is reserved for the
+   top-level result. */
+
+enum { MAX_UI_OUT_LEVELS = 6 };
+
+struct ui_out_level
+  {
+    /* Count each field; the first element is for non-list fields */
+    int field_count;
+    /* The type of this level. */
+    enum ui_out_type type;
+  };
+
+/* Tables are special.  Maintain a separate structure that tracks
+   their state.  At present an output can only contain a single table
+   but that restriction might eventually be lifted.  */
+
+struct ui_out_table
+{
+  /* If on, a table is being generated.  */
+  int flag;
+
+  /* If on, the body of a table is being generated.  If off, the table
+     header is being generated.  */
+  int body_flag;
+
+  /* The level at which each entry of the table is to be found.  A row
+     (a tuple) is made up of entries.  Consequently ENTRY_LEVEL is one
+     above that of the table.  */
+  int entry_level;
+
+  /* Number of table columns (as specified in the table_begin call).  */
+  int columns;
+
+  /* String identifying the table (as specified in the table_begin
+     call).  */
+  char *id;
+
+  /* Points to the first table header (if any).  */
+  struct ui_out_hdr *header_first;
+
+  /* Points to the last table header (if any).  */
+  struct ui_out_hdr *header_last;
+
+  /* Points to header of NEXT column to format.  */
+  struct ui_out_hdr *header_next;
+
+};
+
+
+/* The ui_out structure */
+/* Any change here requires a corresponding one in the initialization
+   of the default uiout, which is statically initialized */
+
+struct ui_out
+  {
+    int flags;
+    /* specific implementation of ui-out */
+    struct ui_out_impl *impl;
+    struct ui_out_data *data;
+
+    /* Sub structure tracking the ui-out depth.  */
+    int level;
+    struct ui_out_level levels[MAX_UI_OUT_LEVELS];
+
+    /* A table, if any.  At present only a single table is supported.  */
+    struct ui_out_table table;
+  };
+
+/* The current (inner most) level. */
+static struct ui_out_level *
+current_level (struct ui_out *uiout)
+{
+  return &uiout->levels[uiout->level];
+}
+
+/* Create a new level, of TYPE.  Return the new level's index. */
+static int
+push_level (struct ui_out *uiout,
+	    enum ui_out_type type,
+	    const char *id)
+{
+  struct ui_out_level *current;
+  /* We had better not overflow the buffer. */
+  uiout->level++;
+  gdb_assert (uiout->level >= 0 && uiout->level < MAX_UI_OUT_LEVELS);
+  current = current_level (uiout);
+  current->field_count = 0;
+  current->type = type;
+  return uiout->level;
+}
+
+/* Discard the current level, return the discarded level's index.
+   TYPE is the type of the level being discarded. */
+static int
+pop_level (struct ui_out *uiout,
+	   enum ui_out_type type)
+{
+  /* We had better not underflow the buffer. */
+  gdb_assert (uiout->level > 0 && uiout->level < MAX_UI_OUT_LEVELS);
+  gdb_assert (current_level (uiout)->type == type);
+  uiout->level--;
+  return uiout->level + 1;
+}
+
+
+/* These are the default implementation functions */
+
+static void default_table_begin (struct ui_out *uiout, int nbrofcols,
+				 int nr_rows, const char *tblid);
+static void default_table_body (struct ui_out *uiout);
+static void default_table_end (struct ui_out *uiout);
+static void default_table_header (struct ui_out *uiout, int width,
+				  enum ui_align alig, const char *col_name,
+				  const char *colhdr);
+static void default_begin (struct ui_out *uiout,
+			   enum ui_out_type type,
+			   int level, const char *id);
+static void default_end (struct ui_out *uiout,
+			 enum ui_out_type type,
+			 int level);
+static void default_field_int (struct ui_out *uiout, int fldno, int width,
+			       enum ui_align alig,
+			       const char *fldname,
+			       int value);
+static void default_field_skip (struct ui_out *uiout, int fldno, int width,
+				enum ui_align alig,
+				const char *fldname);
+static void default_field_string (struct ui_out *uiout, int fldno, int width,
+				  enum ui_align align,
+				  const char *fldname,
+				  const char *string);
+static void default_field_fmt (struct ui_out *uiout, int fldno,
+			       int width, enum ui_align align,
+			       const char *fldname,
+			       const char *format,
+			       va_list args);
+static void default_spaces (struct ui_out *uiout, int numspaces);
+static void default_text (struct ui_out *uiout, const char *string);
+static void default_message (struct ui_out *uiout, int verbosity,
+			     const char *format,
+			     va_list args);
+static void default_wrap_hint (struct ui_out *uiout, char *identstring);
+static void default_flush (struct ui_out *uiout);
+
+/* This is the default ui-out implementation functions vector */
+
+struct ui_out_impl default_ui_out_impl =
+{
+  default_table_begin,
+  default_table_body,
+  default_table_end,
+  default_table_header,
+  default_begin,
+  default_end,
+  default_field_int,
+  default_field_skip,
+  default_field_string,
+  default_field_fmt,
+  default_spaces,
+  default_text,
+  default_message,
+  default_wrap_hint,
+  default_flush,
+  NULL,
+  0, /* Does not need MI hacks.  */
+};
+
+/* The default ui_out */
+
+struct ui_out def_uiout =
+{
+  0,				/* flags */
+  &default_ui_out_impl,		/* impl */
+};
+
+/* Pointer to current ui_out */
+/* FIXME: This should not be a global, but something passed down from main.c
+   or top.c */
+
+struct ui_out *uiout = &def_uiout;
+
+/* These are the interfaces to implementation functions */
+
+static void uo_table_begin (struct ui_out *uiout, int nbrofcols,
+			    int nr_rows, const char *tblid);
+static void uo_table_body (struct ui_out *uiout);
+static void uo_table_end (struct ui_out *uiout);
+static void uo_table_header (struct ui_out *uiout, int width,
+			     enum ui_align align, const char *col_name,
+			     const char *colhdr);
+static void uo_begin (struct ui_out *uiout,
+		      enum ui_out_type type,
+		      int level, const char *id);
+static void uo_end (struct ui_out *uiout,
+		    enum ui_out_type type,
+		    int level);
+static void uo_field_int (struct ui_out *uiout, int fldno, int width,
+			  enum ui_align align, const char *fldname, int value);
+static void uo_field_skip (struct ui_out *uiout, int fldno, int width,
+			   enum ui_align align, const char *fldname);
+static void uo_field_string (struct ui_out *uiout, int fldno, int width,
+			     enum ui_align align, const char *fldname,
+			     const char *string);
+static void uo_field_fmt (struct ui_out *uiout, int fldno, int width,
+			  enum ui_align align, const char *fldname,
+			  const char *format, va_list args);
+static void uo_spaces (struct ui_out *uiout, int numspaces);
+static void uo_text (struct ui_out *uiout, const char *string);
+static void uo_message (struct ui_out *uiout, int verbosity,
+			const char *format, va_list args);
+static void uo_wrap_hint (struct ui_out *uiout, char *identstring);
+static void uo_flush (struct ui_out *uiout);
+static int uo_redirect (struct ui_out *uiout, struct ui_file *outstream);
+
+/* Prototypes for local functions */
+
+extern void _initialize_ui_out (void);
+static void append_header_to_list (struct ui_out *uiout, int width,
+				   int alignment, const char *col_name,
+				   const char *colhdr);
+static int get_next_header (struct ui_out *uiout, int *colno, int *width,
+			    int *alignment, char **colhdr);
+static void clear_header_list (struct ui_out *uiout);
+static void verify_field (struct ui_out *uiout, int *fldno, int *width,
+			  int *align);
+
+/* exported functions (ui_out API) */
+
+/* Mark beginning of a table */
+
+static void
+ui_out_table_begin (struct ui_out *uiout, int nbrofcols,
+		    int nr_rows,
+		    const char *tblid)
+{
+  if (uiout->table.flag)
+    internal_error (__FILE__, __LINE__,
+		    "tables cannot be nested; table_begin found before \
+previous table_end.");
+
+  uiout->table.flag = 1;
+  uiout->table.body_flag = 0;
+  uiout->table.entry_level = uiout->level + 1;
+  uiout->table.columns = nbrofcols;
+  if (tblid != NULL)
+    uiout->table.id = xstrdup (tblid);
+  else
+    uiout->table.id = NULL;
+  clear_header_list (uiout);
+
+  uo_table_begin (uiout, nbrofcols, nr_rows, uiout->table.id);
+}
+
+void
+ui_out_table_body (struct ui_out *uiout)
+{
+  if (!uiout->table.flag)
+    internal_error (__FILE__, __LINE__,
+		    "table_body outside a table is not valid; it must be \
+after a table_begin and before a table_end.");
+  if (uiout->table.body_flag)
+    internal_error (__FILE__, __LINE__,
+		    "extra table_body call not allowed; there must be \
+only one table_body after a table_begin and before a table_end.");
+  if (uiout->table.header_next->colno != uiout->table.columns)
+    internal_error (__FILE__, __LINE__,
+		    "number of headers differ from number of table \
+columns.");
+
+  uiout->table.body_flag = 1;
+  uiout->table.header_next = uiout->table.header_first;
+
+  uo_table_body (uiout);
+}
+
+static void
+ui_out_table_end (struct ui_out *uiout)
+{
+  if (!uiout->table.flag)
+    internal_error (__FILE__, __LINE__,
+		    "misplaced table_end or missing table_begin.");
+
+  uiout->table.entry_level = 0;
+  uiout->table.body_flag = 0;
+  uiout->table.flag = 0;
+
+  uo_table_end (uiout);
+
+  if (uiout->table.id)
+    xfree (uiout->table.id);
+  clear_header_list (uiout);
+}
+
+void
+ui_out_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
+		     const char *col_name,
+		     const char *colhdr)
+{
+  if (!uiout->table.flag || uiout->table.body_flag)
+    internal_error (__FILE__, __LINE__,
+		    "table header must be specified after table_begin \
+and before table_body.");
+
+  append_header_to_list (uiout, width, alignment, col_name, colhdr);
+
+  uo_table_header (uiout, width, alignment, col_name, colhdr);
+}
+
+static void
+do_cleanup_table_end (void *data)
+{
+  struct ui_out *ui_out = data;
+
+  ui_out_table_end (ui_out);
+}
+
+struct cleanup *
+make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out, int nr_cols,
+                                     int nr_rows, const char *tblid)
+{
+  ui_out_table_begin (ui_out, nr_cols, nr_rows, tblid);
+  return make_cleanup (do_cleanup_table_end, ui_out);
+}
+
+void
+ui_out_begin (struct ui_out *uiout,
+	      enum ui_out_type type,
+	      const char *id)
+{
+  int new_level;
+  if (uiout->table.flag && !uiout->table.body_flag)
+    internal_error (__FILE__, __LINE__,
+		    "table header or table_body expected; lists must be \
+specified after table_body.");
+
+  /* Be careful to verify the ``field'' before the new tuple/list is
+     pushed onto the stack.  That way the containing list/table/row is
+     verified and not the newly created tuple/list.  This verification
+     is needed (at least) for the case where a table row entry
+     contains either a tuple/list.  For that case bookkeeping such as
+     updating the column count or advancing to the next heading still
+     needs to be performed.  */
+  {
+    int fldno;
+    int width;
+    int align;
+    verify_field (uiout, &fldno, &width, &align);
+  }
+
+  new_level = push_level (uiout, type, id);
+
+  /* If the push puts us at the same level as a table row entry, we've
+     got a new table row.  Put the header pointer back to the start.  */
+  if (uiout->table.body_flag
+      && uiout->table.entry_level == new_level)
+    uiout->table.header_next = uiout->table.header_first;
+
+  uo_begin (uiout, type, new_level, id);
+}
+
+void
+ui_out_end (struct ui_out *uiout,
+	    enum ui_out_type type)
+{
+  int old_level = pop_level (uiout, type);
+  uo_end (uiout, type, old_level);
+}
+
+struct ui_out_end_cleanup_data
+{
+  struct ui_out *uiout;
+  enum ui_out_type type;
+};
+
+static void
+do_cleanup_end (void *data)
+{
+  struct ui_out_end_cleanup_data *end_cleanup_data = data;
+  ui_out_end (end_cleanup_data->uiout, end_cleanup_data->type);
+  xfree (end_cleanup_data);
+}
+
+static struct cleanup *
+make_cleanup_ui_out_end (struct ui_out *uiout,
+			 enum ui_out_type type)
+{
+  struct ui_out_end_cleanup_data *end_cleanup_data;
+  end_cleanup_data = XMALLOC (struct ui_out_end_cleanup_data);
+  end_cleanup_data->uiout = uiout;
+  end_cleanup_data->type = type;
+  return make_cleanup (do_cleanup_end, end_cleanup_data);
+}
+
+struct cleanup *
+make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout,
+				     const char *id)
+{
+  ui_out_begin (uiout, ui_out_type_tuple, id);
+  return make_cleanup_ui_out_end (uiout, ui_out_type_tuple);
+}
+
+struct cleanup *
+make_cleanup_ui_out_list_begin_end (struct ui_out *uiout,
+				    const char *id)
+{
+  ui_out_begin (uiout, ui_out_type_list, id);
+  return make_cleanup_ui_out_end (uiout, ui_out_type_list);
+}
+
+void
+ui_out_field_int (struct ui_out *uiout,
+		  const char *fldname,
+		  int value)
+{
+  int fldno;
+  int width;
+  int align;
+  struct ui_out_level *current = current_level (uiout);
+
+  verify_field (uiout, &fldno, &width, &align);
+
+  uo_field_int (uiout, fldno, width, align, fldname, value);
+}
+
+void
+ui_out_field_fmt_int (struct ui_out *uiout,
+                      int input_width,
+                      enum ui_align input_align,
+		      const char *fldname,
+		      int value)
+{
+  int fldno;
+  int width;
+  int align;
+  struct ui_out_level *current = current_level (uiout);
+
+  verify_field (uiout, &fldno, &width, &align);
+
+  uo_field_int (uiout, fldno, input_width, input_align, fldname, value);
+}
+
+void
+ui_out_field_core_addr (struct ui_out *uiout,
+			const char *fldname,
+			CORE_ADDR address)
+{
+  char addstr[20];
+
+  /* FIXME: cagney/2002-05-03: Need local_address_string() function
+     that returns the language localized string formatted to a width
+     based on TARGET_ADDR_BIT.  */
+  /* print_address_numeric (address, 1, local_stream); */
+  if (TARGET_ADDR_BIT <= 32)
+    strcpy (addstr, local_hex_string_custom (address, "08l"));
+  else
+    strcpy (addstr, local_hex_string_custom (address, "016l"));
+
+  ui_out_field_string (uiout, fldname, addstr);
+}
+
+void
+ui_out_field_stream (struct ui_out *uiout,
+		     const char *fldname,
+		     struct ui_stream *buf)
+{
+  long length;
+  char *buffer = ui_file_xstrdup (buf->stream, &length);
+  struct cleanup *old_cleanup = make_cleanup (xfree, buffer);
+  if (length > 0)
+    ui_out_field_string (uiout, fldname, buffer);
+  else
+    ui_out_field_skip (uiout, fldname);
+  ui_file_rewind (buf->stream);
+  do_cleanups (old_cleanup);
+}
+
+/* used to ommit a field */
+
+void
+ui_out_field_skip (struct ui_out *uiout,
+		   const char *fldname)
+{
+  int fldno;
+  int width;
+  int align;
+
+  verify_field (uiout, &fldno, &width, &align);
+
+  uo_field_skip (uiout, fldno, width, align, fldname);
+}
+
+void
+ui_out_field_string (struct ui_out *uiout,
+		     const char *fldname,
+		     const char *string)
+{
+  int fldno;
+  int width;
+  int align;
+
+  verify_field (uiout, &fldno, &width, &align);
+
+  uo_field_string (uiout, fldno, width, align, fldname, string);
+}
+
+/* VARARGS */
+void
+ui_out_field_fmt (struct ui_out *uiout,
+		  const char *fldname,
+		  const char *format, ...)
+{
+  va_list args;
+  int fldno;
+  int width;
+  int align;
+
+  /* will not align, but has to call anyway */
+  verify_field (uiout, &fldno, &width, &align);
+
+  va_start (args, format);
+
+  uo_field_fmt (uiout, fldno, width, align, fldname, format, args);
+
+  va_end (args);
+}
+
+void
+ui_out_spaces (struct ui_out *uiout, int numspaces)
+{
+  uo_spaces (uiout, numspaces);
+}
+
+void
+ui_out_text (struct ui_out *uiout,
+	     const char *string)
+{
+  uo_text (uiout, string);
+}
+
+void
+ui_out_message (struct ui_out *uiout, int verbosity,
+		const char *format,...)
+{
+  va_list args;
+
+  va_start (args, format);
+
+  uo_message (uiout, verbosity, format, args);
+
+  va_end (args);
+}
+
+struct ui_stream *
+ui_out_stream_new (struct ui_out *uiout)
+{
+  struct ui_stream *tempbuf;
+
+  tempbuf = XMALLOC (struct ui_stream);
+  tempbuf->uiout = uiout;
+  tempbuf->stream = mem_fileopen ();
+  return tempbuf;
+}
+
+void
+ui_out_stream_delete (struct ui_stream *buf)
+{
+  ui_file_delete (buf->stream);
+  xfree (buf);
+}
+
+static void
+do_stream_delete (void *buf)
+{
+  ui_out_stream_delete (buf);
+}
+
+struct cleanup *
+make_cleanup_ui_out_stream_delete (struct ui_stream *buf)
+{
+  return make_cleanup (do_stream_delete, buf);
+}
+
+
+void
+ui_out_wrap_hint (struct ui_out *uiout, char *identstring)
+{
+  uo_wrap_hint (uiout, identstring);
+}
+
+void
+ui_out_flush (struct ui_out *uiout)
+{
+  uo_flush (uiout);
+}
+
+int
+ui_out_redirect (struct ui_out *uiout, struct ui_file *outstream)
+{
+  return uo_redirect (uiout, outstream);
+}
+
+/* set the flags specified by the mask given */
+int
+ui_out_set_flags (struct ui_out *uiout, int mask)
+{
+  int oldflags = uiout->flags;
+
+  uiout->flags |= mask;
+
+  return oldflags;
+}
+
+/* clear the flags specified by the mask given */
+int
+ui_out_clear_flags (struct ui_out *uiout, int mask)
+{
+  int oldflags = uiout->flags;
+
+  uiout->flags &= ~mask;
+
+  return oldflags;
+}
+
+/* test the flags against the mask given */
+int
+ui_out_test_flags (struct ui_out *uiout, int mask)
+{
+  return (uiout->flags & mask);
+}
+
+/* obtain the current verbosity level (as stablished by the
+   'set verbositylevel' command */
+
+int
+ui_out_get_verblvl (struct ui_out *uiout)
+{
+  /* FIXME: not implemented yet */
+  return 0;
+}
+
+#if 0
+void
+ui_out_result_begin (struct ui_out *uiout, char *class)
+{
+}
+
+void
+ui_out_result_end (struct ui_out *uiout)
+{
+}
+
+void
+ui_out_info_begin (struct ui_out *uiout, char *class)
+{
+}
+
+void
+ui_out_info_end (struct ui_out *uiout)
+{
+}
+
+void
+ui_out_notify_begin (struct ui_out *uiout, char *class)
+{
+}
+
+void
+ui_out_notify_end (struct ui_out *uiout)
+{
+}
+
+void
+ui_out_error_begin (struct ui_out *uiout, char *class)
+{
+}
+
+void
+ui_out_error_end (struct ui_out *uiout)
+{
+}
+#endif
+
+#if 0
+void
+gdb_error (ui_out * uiout, int severity, char *format,...)
+{
+  va_list args;
+}
+
+void
+gdb_query (struct ui_out *uiout, int qflags, char *qprompt)
+{
+}
+#endif
+
+int
+ui_out_is_mi_like_p (struct ui_out *uiout)
+{
+  return uiout->impl->is_mi_like_p;
+}
+
+/* default gdb-out hook functions */
+
+static void
+default_table_begin (struct ui_out *uiout, int nbrofcols,
+		     int nr_rows,
+		     const char *tblid)
+{
+}
+
+static void
+default_table_body (struct ui_out *uiout)
+{
+}
+
+static void
+default_table_end (struct ui_out *uiout)
+{
+}
+
+static void
+default_table_header (struct ui_out *uiout, int width, enum ui_align alignment,
+		      const char *col_name,
+		      const char *colhdr)
+{
+}
+
+static void
+default_begin (struct ui_out *uiout,
+	       enum ui_out_type type,
+	       int level,
+	       const char *id)
+{
+}
+
+static void
+default_end (struct ui_out *uiout,
+	     enum ui_out_type type,
+	     int level)
+{
+}
+
+static void
+default_field_int (struct ui_out *uiout, int fldno, int width,
+		   enum ui_align align,
+		   const char *fldname, int value)
+{
+}
+
+static void
+default_field_skip (struct ui_out *uiout, int fldno, int width,
+		    enum ui_align align, const char *fldname)
+{
+}
+
+static void
+default_field_string (struct ui_out *uiout,
+		      int fldno,
+		      int width,
+		      enum ui_align align,
+		      const char *fldname,
+		      const char *string)
+{
+}
+
+static void
+default_field_fmt (struct ui_out *uiout, int fldno, int width,
+		   enum ui_align align,
+		   const char *fldname,
+		   const char *format,
+		   va_list args)
+{
+}
+
+static void
+default_spaces (struct ui_out *uiout, int numspaces)
+{
+}
+
+static void
+default_text (struct ui_out *uiout, const char *string)
+{
+}
+
+static void
+default_message (struct ui_out *uiout, int verbosity,
+		 const char *format,
+		 va_list args)
+{
+}
+
+static void
+default_wrap_hint (struct ui_out *uiout, char *identstring)
+{
+}
+
+static void
+default_flush (struct ui_out *uiout)
+{
+}
+
+/* Interface to the implementation functions */
+
+void
+uo_table_begin (struct ui_out *uiout, int nbrofcols,
+		int nr_rows,
+		const char *tblid)
+{
+  if (!uiout->impl->table_begin)
+    return;
+  uiout->impl->table_begin (uiout, nbrofcols, nr_rows, tblid);
+}
+
+void
+uo_table_body (struct ui_out *uiout)
+{
+  if (!uiout->impl->table_body)
+    return;
+  uiout->impl->table_body (uiout);
+}
+
+void
+uo_table_end (struct ui_out *uiout)
+{
+  if (!uiout->impl->table_end)
+    return;
+  uiout->impl->table_end (uiout);
+}
+
+void
+uo_table_header (struct ui_out *uiout, int width, enum ui_align align,
+		 const char *col_name,
+		 const char *colhdr)
+{
+  if (!uiout->impl->table_header)
+    return;
+  uiout->impl->table_header (uiout, width, align, col_name, colhdr);
+}
+
+void
+uo_begin (struct ui_out *uiout,
+	  enum ui_out_type type,
+	  int level,
+	  const char *id)
+{
+  if (uiout->impl->begin == NULL)
+    return;
+  uiout->impl->begin (uiout, type, level, id);
+}
+
+void
+uo_end (struct ui_out *uiout,
+	enum ui_out_type type,
+	int level)
+{
+  if (uiout->impl->end == NULL)
+    return;
+  uiout->impl->end (uiout, type, level);
+}
+
+void
+uo_field_int (struct ui_out *uiout, int fldno, int width, enum ui_align align,
+	      const char *fldname,
+	      int value)
+{
+  if (!uiout->impl->field_int)
+    return;
+  uiout->impl->field_int (uiout, fldno, width, align, fldname, value);
+}
+
+void
+uo_field_skip (struct ui_out *uiout, int fldno, int width, enum ui_align align,
+	       const char *fldname)
+{
+  if (!uiout->impl->field_skip)
+    return;
+  uiout->impl->field_skip (uiout, fldno, width, align, fldname);
+}
+
+void
+uo_field_string (struct ui_out *uiout, int fldno, int width,
+		 enum ui_align align,
+		 const char *fldname,
+		 const char *string)
+{
+  if (!uiout->impl->field_string)
+    return;
+  uiout->impl->field_string (uiout, fldno, width, align, fldname, string);
+}
+
+void
+uo_field_fmt (struct ui_out *uiout, int fldno, int width, enum ui_align align,
+	      const char *fldname,
+	      const char *format,
+	      va_list args)
+{
+  if (!uiout->impl->field_fmt)
+    return;
+  uiout->impl->field_fmt (uiout, fldno, width, align, fldname, format, args);
+}
+
+void
+uo_spaces (struct ui_out *uiout, int numspaces)
+{
+  if (!uiout->impl->spaces)
+    return;
+  uiout->impl->spaces (uiout, numspaces);
+}
+
+void
+uo_text (struct ui_out *uiout,
+	 const char *string)
+{
+  if (!uiout->impl->text)
+    return;
+  uiout->impl->text (uiout, string);
+}
+
+void
+uo_message (struct ui_out *uiout, int verbosity,
+	    const char *format,
+	    va_list args)
+{
+  if (!uiout->impl->message)
+    return;
+  uiout->impl->message (uiout, verbosity, format, args);
+}
+
+void
+uo_wrap_hint (struct ui_out *uiout, char *identstring)
+{
+  if (!uiout->impl->wrap_hint)
+    return;
+  uiout->impl->wrap_hint (uiout, identstring);
+}
+
+void
+uo_flush (struct ui_out *uiout)
+{
+  if (!uiout->impl->flush)
+    return;
+  uiout->impl->flush (uiout);
+}
+
+int
+uo_redirect (struct ui_out *uiout, struct ui_file *outstream)
+{
+  if (!uiout->impl->redirect)
+    return -1;
+  uiout->impl->redirect (uiout, outstream);
+  return 0;
+}
+
+/* local functions */
+
+/* list of column headers manipulation routines */
+
+static void
+clear_header_list (struct ui_out *uiout)
+{
+  while (uiout->table.header_first != NULL)
+    {
+      uiout->table.header_next = uiout->table.header_first;
+      uiout->table.header_first = uiout->table.header_first->next;
+      if (uiout->table.header_next->colhdr != NULL)
+	xfree (uiout->table.header_next->colhdr);
+      xfree (uiout->table.header_next);
+    }
+  gdb_assert (uiout->table.header_first == NULL);
+  uiout->table.header_last = NULL;
+  uiout->table.header_next = NULL;
+}
+
+static void
+append_header_to_list (struct ui_out *uiout,
+		       int width,
+		       int alignment,
+		       const char *col_name,
+		       const char *colhdr)
+{
+  struct ui_out_hdr *temphdr;
+
+  temphdr = XMALLOC (struct ui_out_hdr);
+  temphdr->width = width;
+  temphdr->alignment = alignment;
+  /* we have to copy the column title as the original may be an automatic */
+  if (colhdr != NULL)
+    temphdr->colhdr = xstrdup (colhdr);
+  else
+    temphdr->colhdr = NULL;
+  if (col_name != NULL)
+    temphdr->col_name = xstrdup (colhdr);
+  else
+    temphdr->col_name = xstrdup (colhdr);
+  temphdr->next = NULL;
+  if (uiout->table.header_first == NULL)
+    {
+      temphdr->colno = 1;
+      uiout->table.header_first = temphdr;
+      uiout->table.header_last = temphdr;
+    }
+  else
+    {
+      temphdr->colno = uiout->table.header_last->colno + 1;
+      uiout->table.header_last->next = temphdr;
+      uiout->table.header_last = temphdr;
+    }
+  uiout->table.header_next = uiout->table.header_last;
+}
+
+/* Extract the format information for the NEXT header and and advance
+   the header pointer.  Return 0 if there was no next header.  */
+
+static int
+get_next_header (struct ui_out *uiout,
+		 int *colno,
+		 int *width,
+		 int *alignment,
+		 char **colhdr)
+{
+  /* There may be no headers at all or we may have used all columns.  */
+  if (uiout->table.header_next == NULL)
+    return 0;
+  *colno = uiout->table.header_next->colno;
+  *width = uiout->table.header_next->width;
+  *alignment = uiout->table.header_next->alignment;
+  *colhdr = uiout->table.header_next->colhdr;
+  /* Advance the header pointer to the next entry.  */
+  uiout->table.header_next = uiout->table.header_next->next;
+  return 1;
+}
+
+
+/* Verify that the field/tuple/list is correctly positioned.  Return
+   the field number and corresponding alignment (if
+   available/applicable).  */
+
+static void
+verify_field (struct ui_out *uiout, int *fldno, int *width, int *align)
+{
+  struct ui_out_level *current = current_level (uiout);
+  char *text;
+
+  if (uiout->table.flag)
+    {
+      if (!uiout->table.body_flag)
+	internal_error (__FILE__, __LINE__,
+			"table_body missing; table fields must be \
+specified after table_body and inside a list.");
+      /* NOTE: cagney/2001-12-08: There was a check here to ensure
+	 that this code was only executed when uiout->level was
+	 greater than zero.  That no longer applies - this code is run
+	 before each table row tuple is started and at that point the
+	 level is zero.  */
+    }
+
+  current->field_count += 1;
+
+  if (uiout->table.body_flag
+      && uiout->table.entry_level == uiout->level
+      && get_next_header (uiout, fldno, width, align, &text))
+    {
+      if (*fldno != current->field_count)
+	internal_error (__FILE__, __LINE__,
+			"ui-out internal error in handling headers.");
+    }
+  else
+    {
+      *width = 0;
+      *align = ui_noalign;
+      *fldno = current->field_count;
+    }
+}
+
+
+/* access to ui_out format private members */
+
+void
+ui_out_get_field_separator (struct ui_out *uiout)
+{
+}
+
+/* Access to ui-out members data */
+
+struct ui_out_data *
+ui_out_data (struct ui_out *uiout)
+{
+  return uiout->data;
+}
+
+/* initalize private members at startup */
+
+struct ui_out *
+ui_out_new (struct ui_out_impl *impl,
+	    struct ui_out_data *data,
+	    int flags)
+{
+  struct ui_out *uiout = XMALLOC (struct ui_out);
+  uiout->data = data;
+  uiout->impl = impl;
+  uiout->flags = flags;
+  uiout->table.flag = 0;
+  uiout->table.body_flag = 0;
+  uiout->level = 0;
+  memset (uiout->levels, 0, sizeof (uiout->levels));
+  uiout->table.header_first = NULL;
+  uiout->table.header_last = NULL;
+  uiout->table.header_next = NULL;
+  return uiout;
+}
+
+/* standard gdb initialization hook */
+
+void
+_initialize_ui_out (void)
+{
+  /* nothing needs to be done */
+}