Remove some uses of TUI_WIN_SRC

This adds a 'win_info' parameter to a couple of functions.  This
reduces the number of references to the TUI_WIN_SRC global.

gdb/ChangeLog
2019-07-17  Tom Tromey  <tom@tromey.com>

	* tui/tui-winsource.c (tui_update_source_window_as_is)
	(tui_update_source_windows_with_addr): Update.
	* tui/tui-source.h (tui_set_source_content)
	(tui_show_symtab_source): Add "win_info" parameter.
	* tui/tui-source.c (tui_set_source_content): Add "win_info"
	parameter.
	(tui_show_symtab_source): Likewise.

3 files changed, 30 insertions, 27 deletions

diff --git a/gdb/tui/tui-source.c b/gdb/tui/tui-source.c
index 81ede06..e62ee4e 100644
--- a/gdb/tui/tui-source.c
+++ b/gdb/tui/tui-source.c
@@ -123,7 +123,8 @@ copy_source_line (const char **ptr, int line_no, int first_col,
 
 /* Function to display source in the source window.  */
 enum tui_status
-tui_set_source_content (struct symtab *s, 
+tui_set_source_content (tui_source_window_base *win_info,
+			struct symtab *s, 
 			int line_no,
 			int noerror)
 {
@@ -134,11 +135,11 @@ tui_set_source_content (struct symtab *s,
       int line_width, nlines;
 
       ret = TUI_SUCCESS;
-      tui_alloc_source_buffer (TUI_SRC_WIN);
-      line_width = TUI_SRC_WIN->width - 1;
+      tui_alloc_source_buffer (win_info);
+      line_width = win_info->width - 1;
       /* Take hilite (window border) into account, when
 	 calculating the number of lines.  */
-      nlines = (line_no + (TUI_SRC_WIN->height - 2)) - line_no;
+      nlines = (line_no + (win_info->height - 2)) - line_no;
 
       std::string srclines;
       if (!g_source_cache.get_source_lines (s, line_no, line_no + nlines,
@@ -159,32 +160,30 @@ tui_set_source_content (struct symtab *s,
 	  int cur_line_no, cur_line;
 	  struct tui_locator_window *locator
 	    = tui_locator_win_info_ptr ();
-	  struct tui_source_window_base *src
-	    = (struct tui_source_window_base *) TUI_SRC_WIN;
 	  const char *s_filename = symtab_to_filename_for_display (s);
 
-	  xfree (TUI_SRC_WIN->title);
-	  TUI_SRC_WIN->title = xstrdup (s_filename);
+	  xfree (win_info->title);
+	  win_info->title = xstrdup (s_filename);
 
-	  xfree (src->fullname);
-	  src->fullname = xstrdup (symtab_to_fullname (s));
+	  xfree (win_info->fullname);
+	  win_info->fullname = xstrdup (symtab_to_fullname (s));
 
 	  cur_line = 0;
-	  src->gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
-	  src->start_line_or_addr.loa = LOA_LINE;
-	  cur_line_no = src->start_line_or_addr.u.line_no = line_no;
+	  win_info->gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
+	  win_info->start_line_or_addr.loa = LOA_LINE;
+	  cur_line_no = win_info->start_line_or_addr.u.line_no = line_no;
 
 	  const char *iter = srclines.c_str ();
-	  TUI_SRC_WIN->content.resize (nlines);
+	  win_info->content.resize (nlines);
 	  while (cur_line < nlines)
 	    {
 	      struct tui_source_element *element
-		= &TUI_SRC_WIN->content[cur_line];
+		= &win_info->content[cur_line];
 
 	      std::string text;
 	      if (*iter != '\0')
 		text = copy_source_line (&iter, cur_line_no,
-					 src->horizontal_offset,
+					 win_info->horizontal_offset,
 					 line_width);
 
 	      /* Set whether element is the execution point
@@ -196,8 +195,8 @@ tui_set_source_content (struct symtab *s,
 				 symtab_to_fullname (s)) == 0
 		   && cur_line_no == locator->line_no);
 
-	      xfree (TUI_SRC_WIN->content[cur_line].line);
-	      TUI_SRC_WIN->content[cur_line].line
+	      xfree (win_info->content[cur_line].line);
+	      win_info->content[cur_line].line
 		= xstrdup (text.c_str ());
 
 	      cur_line++;
@@ -276,12 +275,13 @@ tui_set_source_content_nil (struct tui_source_window_base *win_info,
 /* Function to display source in the source window.  This function
    initializes the horizontal scroll to 0.  */
 void
-tui_show_symtab_source (struct gdbarch *gdbarch, struct symtab *s,
+tui_show_symtab_source (tui_source_window_base *win_info,
+			struct gdbarch *gdbarch, struct symtab *s,
 			struct tui_line_or_address line, 
 			int noerror)
 {
-  TUI_SRC_WIN->horizontal_offset = 0;
-  tui_update_source_window_as_is (TUI_SRC_WIN, gdbarch, s, line, noerror);
+  win_info->horizontal_offset = 0;
+  tui_update_source_window_as_is (win_info, gdbarch, s, line, noerror);
 }
 
 
diff --git a/gdb/tui/tui-source.h b/gdb/tui/tui-source.h
index 9e1dc1a..8ceb194 100644
--- a/gdb/tui/tui-source.h
+++ b/gdb/tui/tui-source.h
@@ -30,9 +30,11 @@ struct tui_win_info;
 extern void tui_set_source_content_nil (struct tui_source_window_base *,
 					const char *);
 
-extern enum tui_status tui_set_source_content (struct symtab *, 
+extern enum tui_status tui_set_source_content (tui_source_window_base *,
+					       struct symtab *, 
 					       int, int);
-extern void tui_show_symtab_source (struct gdbarch *, struct symtab *,
+extern void tui_show_symtab_source (tui_source_window_base *,
+				    struct gdbarch *, struct symtab *,
 				    struct tui_line_or_address,
 				    int);
 extern int tui_source_is_displayed (const char *);
diff --git a/gdb/tui/tui-winsource.c b/gdb/tui/tui-winsource.c
index dbede41..c7c04df 100644
--- a/gdb/tui/tui-winsource.c
+++ b/gdb/tui/tui-winsource.c
@@ -94,7 +94,8 @@ tui_update_source_window_as_is (struct tui_source_window_base *win_info,
   enum tui_status ret;
 
   if (win_info->type == SRC_WIN)
-    ret = tui_set_source_content (s, line_or_addr.u.line_no, noerror);
+    ret = tui_set_source_content (win_info, s, line_or_addr.u.line_no,
+				  noerror);
   else
     ret = tui_set_disassem_content (gdbarch, line_or_addr.u.addr);
 
@@ -121,7 +122,7 @@ tui_update_source_window_as_is (struct tui_source_window_base *win_info,
 	     we don't have a split layout.  */
 	  if (tui_win_with_focus () == TUI_DISASM_WIN
 	      && tui_current_layout () != SRC_DISASSEM_COMMAND)
-	    tui_set_win_focus_to (TUI_SRC_WIN);
+	    tui_set_win_focus_to (win_info);
 	}
     }
 
@@ -153,7 +154,7 @@ tui_update_source_windows_with_addr (struct gdbarch *gdbarch, CORE_ADDR addr)
 	  sal = find_pc_line (addr, 0);
 	  l.loa = LOA_LINE;
 	  l.u.line_no = sal.line;
-	  tui_show_symtab_source (gdbarch, sal.symtab, l, FALSE);
+	  tui_show_symtab_source (TUI_SRC_WIN, gdbarch, sal.symtab, l, FALSE);
 	  break;
 	}
     }
@@ -191,7 +192,7 @@ tui_update_source_windows_with_line (struct symtab *s, int line)
     default:
       l.loa = LOA_LINE;
       l.u.line_no = line;
-      tui_show_symtab_source (gdbarch, s, l, FALSE);
+      tui_show_symtab_source (TUI_SRC_WIN, gdbarch, s, l, FALSE);
       if (tui_current_layout () == SRC_DISASSEM_COMMAND)
 	{
 	  find_line_pc (s, line, &pc);