Add const to various variables in the gas sources.

* symbols.c (decode_local_label_name): Make type a const char *.
	* 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 *.
	* messages.c (as_internal_value_out_of_range): Make type of prefix
	const char *.
	* stabs.c (s_stab_generic): make type of stab_secname, stabstr_secname
	and string const char *.
	* read.c (_bfd_rel): Make type of name const char *.
	* app.c (out_string): Change type to const char *.
       	(struct app_save::out_string): Likewise.

gas/ChangeLog

@@ -1,3 +1,20 @@
+016-02-19  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>
+
+	* symbols.c (decode_local_label_name): Make type a const char *.
+	* 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 *.
+	* messages.c (as_internal_value_out_of_range): Make type of prefix
+	const char *.
+	* stabs.c (s_stab_generic): make type of stab_secname, stabstr_secname
+	and string const char *.
+	* read.c (_bfd_rel): Make type of name const char *.
+	* app.c (out_string): Change type to const char *.
+       	(struct app_save::out_string): Likewise.
+
 2016-02-18  Dan Gisselquist  <dgisselq@verizon.net>
 	    Nick Clifton  <nickc@redhat.com>
 

gas/app.c

@@ -211,7 +211,7 @@ do_scrub_begin (int m68k_mri ATTRIBUTE_UNUSED)
 /* Saved state of the scrubber.  */
 static int state;
 static int old_state;
-static char *out_string;
+static const char *out_string;
 static char out_buf[20];
 static int add_newlines;
 static char *saved_input;
@@ -229,7 +229,7 @@ struct app_save
 {
   int          state;
   int          old_state;
-  char *       out_string;
+  const char * out_string;
   char         out_buf[sizeof (out_buf)];
   int          add_newlines;
   char *       saved_input;

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;
@@ -695,12 +696,11 @@ rebuffer_line (file_info_type *  file,
 }
 
 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 unsigned int on_page;	/* Number of lines printed on current page */
+static unsigned int eject;	/* Eject pending.  */
+static unsigned int page;	/* Current page number.  */
+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
 listing_page (list_info_type *list)
@@ -832,7 +832,7 @@ 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 +1095,7 @@ 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 +1202,7 @@ 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;
 

gas/messages.c

@@ -342,13 +342,13 @@ sprint_value (char *buf, valueT val)
 #define HEX_MIN_THRESHOLD	-(HEX_MAX_THRESHOLD)
 
 static void
-as_internal_value_out_of_range (char *    prefix,
-				offsetT   val,
-				offsetT   min,
-				offsetT   max,
-				char *    file,
-				unsigned  line,
-				int       bad)
+as_internal_value_out_of_range (const char *  prefix,
+				offsetT       val,
+				offsetT       min,
+				offsetT       max,
+				char *        file,
+				unsigned      line,
+				int           bad)
 {
   const char * err;
 

gas/read.c

@@ -4050,10 +4050,11 @@ s_reloc (int ignore ATTRIBUTE_UNUSED)
   char *r_name;
   int c;
   struct reloc_list *reloc;
-  struct _bfd_rel { char *name; bfd_reloc_code_real_type code; };
-  static struct _bfd_rel bfd_relocs[] = {
+  struct _bfd_rel { const char * name; bfd_reloc_code_real_type code; };
+  static struct _bfd_rel bfd_relocs[] =
+  {
     { "NONE", BFD_RELOC_NONE },
-    { "8", BFD_RELOC_8 },
+    { "8",  BFD_RELOC_8 },
     { "16", BFD_RELOC_16 },
     { "32", BFD_RELOC_32 },
     { "64", BFD_RELOC_64 }

gas/stabs.c

@@ -34,7 +34,7 @@
 
 int outputting_stabs_line_debug = 0;
 
-static void s_stab_generic (int, char *, char *);
+static void s_stab_generic (int, const char *, const char *);
 static void generate_asm_file (int, char *);
 
 /* Allow backends to override the names used for the stab sections.  */
@@ -176,7 +176,9 @@ aout_process_stab (what, string, type, other, desc)
    kinds of stab sections.  */
 
 static void
-s_stab_generic (int what, char *stab_secname, char *stabstr_secname)
+s_stab_generic (int          what,
+		const char * stab_secname,
+	       	const char * stabstr_secname)
 {
   long longint;
   char *string, *saved_string_obstack_end;

gas/symbols.c

@@ -1888,7 +1888,7 @@ decode_local_label_name (char *s)
   char *symbol_decode;
   int label_number;
   int instance_number;
-  char *type;
+  const char *type;
   const char *message_format;
   int lindex = 0;