use xstrdup and friends more

gas/ChangeLog:

2016-04-03  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

	* config/obj-elf.c (obj_elf_vendor_attribute): Use xstrdup.
	* config/tc-ppc.c (ppc_frob_file_before_adjust): Likewise.
	(ppc_znop): Likewise.
	(ppc_pe_section): Likewise.
	(ppc_frob_symbol): Likewise.
	* config/tc-tic30.c (tic30_operand): Likewise.
	* config/tc-tic4x.c (tic4x_sect): Likewise.
	(tic4x_usect): Likewise.

4 files changed, 9 insertions, 25 deletions

diff --git a/gas/config/obj-elf.c b/gas/config/obj-elf.c
index 1d07d4b..68290e2 100644
--- a/gas/config/obj-elf.c
+++ b/gas/config/obj-elf.c
@@ -1609,9 +1609,7 @@ obj_elf_vendor_attribute (int vendor)
       if (i == 0)
 	goto bad;
 
-      name = xmalloc (i + 1);
-      memcpy (name, s, i);
-      name[i] = '\0';
+      name = xstrndup (s, i);
 
 #ifndef CONVERT_SYMBOLIC_ATTRIBUTE
 #define CONVERT_SYMBOLIC_ATTRIBUTE(a) -1
diff --git a/gas/config/tc-ppc.c b/gas/config/tc-ppc.c
index cf4f96e..23a84a7 100644
--- a/gas/config/tc-ppc.c
+++ b/gas/config/tc-ppc.c
@@ -2390,7 +2390,6 @@ ppc_frob_file_before_adjust (void)
       const char *name;
       char *dotname;
       symbolS *dotsym;
-      size_t len;
 
       name = S_GET_NAME (symp);
       if (name[0] == '.')
@@ -2400,10 +2399,7 @@ ppc_frob_file_before_adjust (void)
 	  || S_IS_DEFINED (symp))
 	continue;
 
-      len = strlen (name) + 1;
-      dotname = xmalloc (len + 1);
-      dotname[0] = '.';
-      memcpy (dotname + 1, name, len);
+      dotname = concat (".", name, (char *) NULL);
       dotsym = symbol_find_noref (dotname, 1);
       free (dotname);
       if (dotsym != NULL && (symbol_used_p (dotsym)
@@ -5195,8 +5191,7 @@ ppc_znop (int ignore ATTRIBUTE_UNUSED)
   /* Strip out the symbol name.  */
   c = get_symbol_name (&symbol_name);
 
-  name = xmalloc (input_line_pointer - symbol_name + 1);
-  strcpy (name, symbol_name);
+  name = xstrdup (symbol_name);
 
   sym = symbol_find_or_make (name);
 
@@ -5370,8 +5365,7 @@ ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
 
   c = get_symbol_name (&section_name);
 
-  name = xmalloc (input_line_pointer - section_name + 1);
-  strcpy (name, section_name);
+  name = xstrdup (section_name);
 
   *input_line_pointer = c;
 
@@ -5768,9 +5762,7 @@ ppc_frob_symbol (symbolS *sym)
 	  char *snew;
 
 	  len = s - name;
-	  snew = xmalloc (len + 1);
-	  memcpy (snew, name, len);
-	  snew[len] = '\0';
+	  snew = xstrndup (name, len);
 
 	  S_SET_NAME (sym, snew);
 	}
diff --git a/gas/config/tc-tic30.c b/gas/config/tc-tic30.c
index 71c6249..10653ed 100644
--- a/gas/config/tc-tic30.c
+++ b/gas/config/tc-tic30.c
@@ -604,9 +604,7 @@ tic30_operand (char *token)
 	      segT retval;
 
 	      debug ("Probably a label: %s\n", token);
-	      current_op->immediate.label = malloc (strlen (token) + 1);
-	      strcpy (current_op->immediate.label, token);
-	      current_op->immediate.label[strlen (token)] = '\0';
+	      current_op->immediate.label = xstrdup (token);
 	      save_input_line_pointer = input_line_pointer;
 	      input_line_pointer = token;
 
@@ -634,9 +632,7 @@ tic30_operand (char *token)
 	      for (count = 0; count < strlen (token); count++)
 		if (*(token + count) == '.')
 		  current_op->immediate.decimal_found = 1;
-	      current_op->immediate.label = malloc (strlen (token) + 1);
-	      strcpy (current_op->immediate.label, token);
-	      current_op->immediate.label[strlen (token)] = '\0';
+	      current_op->immediate.label = xstrdup (token);
 	      current_op->immediate.f_number = (float) atof (token);
 	      current_op->immediate.s_number = (int) atoi (token);
 	      current_op->immediate.u_number = (unsigned int) atoi (token);
diff --git a/gas/config/tc-tic4x.c b/gas/config/tc-tic4x.c
index c44201d..ba0aa38 100644
--- a/gas/config/tc-tic4x.c
+++ b/gas/config/tc-tic4x.c
@@ -964,8 +964,7 @@ tic4x_sect (int x ATTRIBUTE_UNUSED)
   if (c == '"')
     c = * ++ input_line_pointer;
   input_line_pointer++;		/* Skip null symbol terminator.  */
-  name = xmalloc (input_line_pointer - section_name + 1);
-  strcpy (name, section_name);
+  name = xstrdup (section_name);
 
   /* TI C from version 5.0 allows a section name to contain a
      subsection name as well. The subsection name is separated by a
@@ -1075,8 +1074,7 @@ tic4x_usect (int x ATTRIBUTE_UNUSED)
   if (c == '"')
     c = * ++ input_line_pointer;
   input_line_pointer++;		/* Skip null symbol terminator.  */
-  name = xmalloc (input_line_pointer - section_name + 1);
-  strcpy (name, section_name);
+  name = xstrdup (section_name);
 
   if (c == ',')
     input_line_pointer =