X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdbsupport%2Fcommon-inferior.cc;h=aed88409909bf90e65953a590892dab17ac54c37;hb=f1cee837665a932d3d747597d8512cd0d3650478;hp=a7d631f3574d64aacd171eaf594a94b1625ceb45;hpb=92651b1d91a124b8c14e45adc8d007b659cc92c2;p=binutils-gdb.git

diff --git a/gdbsupport/common-inferior.cc b/gdbsupport/common-inferior.cc
index a7d631f3574..aed88409909 100644
--- a/gdbsupport/common-inferior.cc
+++ b/gdbsupport/common-inferior.cc
@@ -1,7 +1,7 @@
 /* Functions to deal with the inferior being executed on GDB or
    GDBserver.
 
-   Copyright (C) 2019-2020 Free Software Foundation, Inc.
+   Copyright (C) 2019-2021 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -27,15 +27,10 @@ bool startup_with_shell = true;
 
 /* See common-inferior.h.  */
 
-char *
-construct_inferior_arguments (int argc, char **argv)
+std::string
+construct_inferior_arguments (gdb::array_view<char * const> argv)
 {
-  char *result;
-
-  /* ARGC should always be at least 1, but we double check this
-     here.  This is also needed to silence -Werror-stringop
-     warnings.  */
-  gdb_assert (argc > 0);
+  std::string result;
 
   if (startup_with_shell)
     {
@@ -51,49 +46,38 @@ construct_inferior_arguments (int argc, char **argv)
       static const char special[] = "\"!#$&*()\\|[]{}<>?'`~^; \t\n";
       static const char quote = '\'';
 #endif
-      int i;
-      int length = 0;
-      char *out, *cp;
-
-      /* We over-compute the size.  It shouldn't matter.  */
-      for (i = 0; i < argc; ++i)
-	length += 3 * strlen (argv[i]) + 1 + 2 * (argv[i][0] == '\0');
-
-      result = (char *) xmalloc (length);
-      out = result;
-
-      for (i = 0; i < argc; ++i)
+      for (int i = 0; i < argv.size (); ++i)
 	{
 	  if (i > 0)
-	    *out++ = ' ';
+	    result += ' ';
 
 	  /* Need to handle empty arguments specially.  */
 	  if (argv[i][0] == '\0')
 	    {
-	      *out++ = quote;
-	      *out++ = quote;
+	      result += quote;
+	      result += quote;
 	    }
 	  else
 	    {
 #ifdef __MINGW32__
-	      int quoted = 0;
+	      bool quoted = false;
 
 	      if (strpbrk (argv[i], special))
 		{
-		  quoted = 1;
-		  *out++ = quote;
+		  quoted = true;
+		  result += quote;
 		}
 #endif
-	      for (cp = argv[i]; *cp; ++cp)
+	      for (char *cp = argv[i]; *cp; ++cp)
 		{
 		  if (*cp == '\n')
 		    {
 		      /* A newline cannot be quoted with a backslash (it
 			 just disappears), only by putting it inside
 			 quotes.  */
-		      *out++ = quote;
-		      *out++ = '\n';
-		      *out++ = quote;
+		      result += quote;
+		      result += '\n';
+		      result += quote;
 		    }
 		  else
 		    {
@@ -102,45 +86,38 @@ construct_inferior_arguments (int argc, char **argv)
 #else
 		      if (strchr (special, *cp) != NULL)
 #endif
-			*out++ = '\\';
-		      *out++ = *cp;
+			result += '\\';
+		      result += *cp;
 		    }
 		}
 #ifdef __MINGW32__
 	      if (quoted)
-		*out++ = quote;
+		result += quote;
 #endif
 	    }
 	}
-      *out = '\0';
     }
   else
     {
       /* In this case we can't handle arguments that contain spaces,
 	 tabs, or newlines -- see breakup_args().  */
-      int i;
-      int length = 0;
-
-      for (i = 0; i < argc; ++i)
+      for (char *arg : argv)
 	{
-	  char *cp = strchr (argv[i], ' ');
+	  char *cp = strchr (arg, ' ');
 	  if (cp == NULL)
-	    cp = strchr (argv[i], '\t');
+	    cp = strchr (arg, '\t');
 	  if (cp == NULL)
-	    cp = strchr (argv[i], '\n');
+	    cp = strchr (arg, '\n');
 	  if (cp != NULL)
 	    error (_("can't handle command-line "
 		     "argument containing whitespace"));
-	  length += strlen (argv[i]) + 1;
 	}
 
-      result = (char *) xmalloc (length);
-      result[0] = '\0';
-      for (i = 0; i < argc; ++i)
+      for (int i = 0; i < argv.size (); ++i)
 	{
 	  if (i > 0)
-	    strcat (result, " ");
-	  strcat (result, argv[i]);
+	    result += " ";
+	  result += argv[i];
 	}
     }