Replace malloc with xmalloc

	* argv.c (dupargv): Replace malloc with xmalloc.  Don't check
	xmalloc return.
	(buildargv): Likewise.  Also replace strdup with xstrdup.
	(expandargv): Don't check dupargv return.

From-SVN: r190767

libiberty/ChangeLog

 2011-08-28  H.J. Lu  <hongjiu.lu@intel.com>
 
+	* argv.c (dupargv): Replace malloc with xmalloc.  Don't check
+	xmalloc return.
+	(buildargv): Likewise.  Also replace strdup with xstrdup.
+	(expandargv): Don't check dupargv return.
+
+2011-08-28  H.J. Lu  <hongjiu.lu@intel.com>
+
 	PR binutils/14526
 	* argv.c (buildargv): Replace alloca with xmalloc/free.
 

libiberty/argv.c

 /* Create and destroy argument vectors (argv's)
-   Copyright (C) 1992, 2001, 2010 Free Software Foundation, Inc.
+   Copyright (C) 1992, 2001, 2010, 2012 Free Software Foundation, Inc.
    Written by Fred Fish @ Cygnus Support
 
 This file is part of the libiberty library.
@@ -72,20 +72,13 @@ dupargv (char **argv)
   
   /* the vector */
   for (argc = 0; argv[argc] != NULL; argc++);
-  copy = (char **) malloc ((argc + 1) * sizeof (char *));
-  if (copy == NULL)
-    return NULL;
-  
+  copy = (char **) xmalloc ((argc + 1) * sizeof (char *));
+
   /* the strings */
   for (argc = 0; argv[argc] != NULL; argc++)
     {
       int len = strlen (argv[argc]);
-      copy[argc] = (char *) malloc (len + 1);
-      if (copy[argc] == NULL)
-	{
-	  freeargv (copy);
-	  return NULL;
-	}
+      copy[argc] = (char *) xmalloc (len + 1);
       strcpy (copy[argc], argv[argc]);
     }
   copy[argc] = NULL;
@@ -149,7 +142,7 @@ remains unchanged.  The last element of the vector is followed by a
 @code{NULL} element.
 
 All of the memory for the pointer array and copies of the string
-is obtained from @code{malloc}.  All of the memory can be returned to the
+is obtained from @code{xmalloc}.  All of the memory can be returned to the
 system with the single function call @code{freeargv}, which takes the
 returned result of @code{buildargv}, as it's argument.
 
@@ -205,21 +198,12 @@ char **buildargv (const char *input)
 	      if (argv == NULL)
 		{
 		  maxargc = INITIAL_MAXARGC;
-		  nargv = (char **) malloc (maxargc * sizeof (char *));
+		  nargv = (char **) xmalloc (maxargc * sizeof (char *));
 		}
 	      else
 		{
 		  maxargc *= 2;
-		  nargv = (char **) realloc (argv, maxargc * sizeof (char *));
-		}
-	      if (nargv == NULL)
-		{
-		  if (argv != NULL)
-		    {
-		      freeargv (argv);
-		      argv = NULL;
-		    }
-		  break;
+		  nargv = (char **) xrealloc (argv, maxargc * sizeof (char *));
 		}
 	      argv = nargv;
 	      argv[argc] = NULL;
@@ -284,13 +268,7 @@ char **buildargv (const char *input)
 		}
 	    }
 	  *arg = EOS;
-	  argv[argc] = strdup (copybuf);
-	  if (argv[argc] == NULL)
-	    {
-	      freeargv (argv);
-	      argv = NULL;
-	      break;
-	    }
+	  argv[argc] = xstrdup (copybuf);
 	  argc++;
 	  argv[argc] = NULL;
 
@@ -457,14 +435,7 @@ expandargv (int *argcp, char ***argvp)
 	file_argv = buildargv (buffer);
       /* If *ARGVP is not already dynamically allocated, copy it.  */
       if (!argv_dynamic)
-	{
-	  *argvp = dupargv (*argvp);
-	  if (!*argvp)
-	    {
-	      fputs ("\nout of memory\n", stderr);
-	      xexit (1);
-	    }
-	}
+	*argvp = dupargv (*argvp);
       /* Count the number of arguments.  */
       file_argc = 0;
       while (file_argv[file_argc])