[PATCH 2/6] listing.c: misc constification of strings

[tbsaunde+binutils at tbsaunde dot org]

From: Trevor Saunders <tbsaunde@tbsaunde.org>

gas/ChangeLog:

2016-02-16  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

	* listing.c (print_source): Make type of p const char *.
				    (print_line): Make type of string const
	char *.
	  (buffer_line): Return const char *.
			 (title): Make type const char *.
				  (subtitle): Likewise.
	(listing_listing): Make type of p const char *.
---
 gas/listing.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/gas/listing.c b/gas/listing.c
index eeb349a..5898c0e 100644
--- a/gas/listing.c
+++ b/gas/listing.c
@@ -223,7 +223,8 @@ static file_info_type *file_info (const char *);
 static void new_frag (void);
 static void listing_page (list_info_type *);
 static unsigned int calc_hex (list_info_type *);
-static void print_lines (list_info_type *, unsigned int, char *, unsigned int);
+static void print_lines (list_info_type *, unsigned int, const char *,
+			 unsigned int);
 static void list_symbol_table (void);
 static int debugging_pseudo (list_info_type *, const char *);
 static void listing_listing (char *);
@@ -472,7 +473,7 @@ listing_prev_line (void)
    truncated to size.  It appends a fake line to the end of each input
    file to make using the returned buffer simpler.  */
 
-static char *
+static const char *
 buffer_line (file_info_type *file, char *line, unsigned int size)
 {
   unsigned int count = 0;
@@ -698,8 +699,8 @@ static const char *fn;
 
 static unsigned int eject;	/* Eject pending */
 static unsigned int page;	/* Current page number */
-static char *title;		/* Current title */
-static char *subtitle;		/* Current subtitle */
+static const char *title;		/* Current title */
+static const char *subtitle;		/* Current subtitle */
 static unsigned int on_page;	/* Number of lines printed on current page */
 
 static void
@@ -832,7 +833,7 @@ calc_hex (list_info_type *list)
 
 static void
 print_lines (list_info_type *list, unsigned int lineno,
-	     char *string, unsigned int address)
+	     const char *string, unsigned int address)
 {
   unsigned int idx;
   unsigned int nchars;
@@ -1095,7 +1096,7 @@ print_source (file_info_type *  current_file,
       while (current_file->linenum < list->hll_line
 	     && !current_file->at_end)
 	{
-	  char *p;
+	  const char *p;
 
 	  cache = cached_lines + next_free_line;
 	  cache->file = current_file;
@@ -1202,7 +1203,7 @@ listing_listing (char *name ATTRIBUTE_UNUSED)
   list_info_type *list = head;
   file_info_type *current_hll_file = (file_info_type *) NULL;
   char *buffer;
-  char *p;
+  const char *p;
   int show_listing = 1;
   unsigned int width;
 
-- 
2.7.0