[patch v3 03/16] source: add flags to print_source_lines ()

[markus.t.metzger@intel.com]

From: Markus Metzger <markus.t.metzger@intel.com>

The 4th parameter of print_source_lines is a boolean flag noerror. Generalize
this to be a bit vector of flags and make noerror one of the flag bits.

2012-08-14 Markus Metzger <markus.t.metzger@intel.com>

	* symtab.h (print_source_lines_flags): New enum.
	* source.c (print_source_lines_base): Change noerror to flags.
	(print_source_lines): Change noerror to flags.


---
 gdb/source.c |   16 ++++++++--------
 gdb/symtab.h |   11 ++++++++++-
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/gdb/source.c b/gdb/source.c
index 0ff0782..d4616be 100644
--- a/gdb/source.c
+++ b/gdb/source.c
@@ -1245,10 +1245,9 @@ identify_source_line (struct symtab *s, int line, int mid_statement,
 /* Print source lines from the file of symtab S,
    starting with line number LINE and stopping before line number STOPLINE.  */
 
-static void print_source_lines_base (struct symtab *s, int line, int stopline,
-				     int noerror);
 static void
-print_source_lines_base (struct symtab *s, int line, int stopline, int noerror)
+print_source_lines_base (struct symtab *s, int line, int stopline,
+			 enum print_source_lines_flags flags)
 {
   int c;
   int desc;
@@ -1276,13 +1275,13 @@ print_source_lines_base (struct symtab *s, int line, int stopline, int noerror)
       else
 	{
 	  desc = last_source_error;
-	  noerror = 1;
+	  flags |= PRINT_SOURCE_LINES_NOERROR;
 	}
     }
   else
     {
       desc = last_source_error;
-      noerror = 1;
+	  flags |= PRINT_SOURCE_LINES_NOERROR;
       noprint = 1;
     }
 
@@ -1290,7 +1289,7 @@ print_source_lines_base (struct symtab *s, int line, int stopline, int noerror)
     {
       last_source_error = desc;
 
-      if (!noerror)
+      if (!(flags & PRINT_SOURCE_LINES_NOERROR))
 	{
 	  char *name = alloca (strlen (s->filename) + 100);
 	  sprintf (name, "%d\t%s", line, s->filename);
@@ -1376,9 +1375,10 @@ print_source_lines_base (struct symtab *s, int line, int stopline, int noerror)
    window otherwise it is simply printed.  */
 
 void
-print_source_lines (struct symtab *s, int line, int stopline, int noerror)
+print_source_lines (struct symtab *s, int line, int stopline,
+		    enum print_source_lines_flags flags)
 {
-  print_source_lines_base (s, line, stopline, noerror);
+  print_source_lines_base (s, line, stopline, flags);
 }
 \f
 /* Print info on range of pc's in a specified line.  */
diff --git a/gdb/symtab.h b/gdb/symtab.h
index 76120a3..750da2a 100644
--- a/gdb/symtab.h
+++ b/gdb/symtab.h
@@ -1141,7 +1141,16 @@ extern void clear_solib (void);
 
 extern int identify_source_line (struct symtab *, int, int, CORE_ADDR);
 
-extern void print_source_lines (struct symtab *, int, int, int);
+/* Flags passed as 4th argument to print_source_lines.  */
+
+enum print_source_lines_flags
+  {
+    /* Do not print an error message.  */
+    PRINT_SOURCE_LINES_NOERROR = (1 << 0)
+  };
+
+extern void print_source_lines (struct symtab *, int, int,
+				enum print_source_lines_flags);
 
 extern void forget_cached_source_info_for_objfile (struct objfile *);
 extern void forget_cached_source_info (void);
-- 
1.7.1