gdb: new function to wrap up executing command line scripts/commands

Small refactor to wrap up executing the scripts and commands passed
using the -x, -ex, -ix, -iex command line flags.

There should be no user visible changes after this commit.

gdb/ChangeLog:

	* main.c (execute_cmdargs): New function.
	(captured_main_1): Make use of execute_cmdargs.

2 files changed, 27 insertions, 32 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 18b7fb0..4356fa7 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,10 @@
 2020-11-02  Andrew Burgess  <andrew.burgess@embecosm.com>
 
+	* main.c (execute_cmdargs): New function.
+	(captured_main_1): Make use of execute_cmdargs.
+
+2020-11-02  Andrew Burgess  <andrew.burgess@embecosm.com>
+
 	* NEWS: Mention changes to config file search path.
 	* main.c
 
diff --git a/gdb/main.c b/gdb/main.c
index 6232ea3..d3a6637 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -515,6 +515,26 @@ struct cmdarg
   char *string;
 };
 
+/* From CMDARG_VEC execute command files (matching FILE_TYPE) or commands
+   (matching CMD_TYPE).  Update the value in *RET if and scripts or
+   commands are executed.  */
+
+static void
+execute_cmdargs (const std::vector<struct cmdarg> *cmdarg_vec,
+		 cmdarg_kind file_type, cmdarg_kind cmd_type,
+		 int *ret)
+{
+  for (const auto &cmdarg_p : *cmdarg_vec)
+    {
+      if (cmdarg_p.type == file_type)
+	*ret = catch_command_errors (source_script, cmdarg_p.string,
+				     !batch_flag);
+      else if (cmdarg_p.type == cmd_type)
+	*ret = catch_command_errors (execute_command, cmdarg_p.string,
+				     !batch_flag);
+    }
+}
+
 static void
 captured_main_1 (struct captured_main_args *context)
 {
@@ -1069,22 +1089,7 @@ captured_main_1 (struct captured_main_args *context)
     ret = catch_command_errors (source_script, home_gdbinit.c_str (), 0);
 
   /* Process '-ix' and '-iex' options early.  */
-  for (i = 0; i < cmdarg_vec.size (); i++)
-    {
-      const struct cmdarg &cmdarg_p = cmdarg_vec[i];
-
-      switch (cmdarg_p.type)
-	{
-	case CMDARG_INIT_FILE:
-	  ret = catch_command_errors (source_script, cmdarg_p.string,
-				      !batch_flag);
-	  break;
-	case CMDARG_INIT_COMMAND:
-	  ret = catch_command_errors (execute_command, cmdarg_p.string,
-				      !batch_flag);
-	  break;
-	}
-    }
+  execute_cmdargs (&cmdarg_vec, CMDARG_INIT_FILE, CMDARG_INIT_COMMAND, &ret);
 
   /* Now perform all the actions indicated by the arguments.  */
   if (cdarg != NULL)
@@ -1195,22 +1200,7 @@ captured_main_1 (struct captured_main_args *context)
     load_auto_scripts_for_objfile (objfile);
 
   /* Process '-x' and '-ex' options.  */
-  for (i = 0; i < cmdarg_vec.size (); i++)
-    {
-      const struct cmdarg &cmdarg_p = cmdarg_vec[i];
-
-      switch (cmdarg_p.type)
-	{
-	case CMDARG_FILE:
-	  ret = catch_command_errors (source_script, cmdarg_p.string,
-				      !batch_flag);
-	  break;
-	case CMDARG_COMMAND:
-	  ret = catch_command_errors (execute_command, cmdarg_p.string,
-				      !batch_flag);
-	  break;
-	}
-    }
+  execute_cmdargs (&cmdarg_vec, CMDARG_FILE, CMDARG_COMMAND, &ret);
 
   /* Read in the old history after all the command files have been
      read.  */