Add support for the readnever concept

[deliverable/binutils-gdb.git] / gdb / main.c

diff --git a/gdb/main.c b/gdb/main.c
index 61168faf500f1f9600978a6f342ba69779eab03d..8f04da107a02e592bca887f431d3576002475b4a 100644 (file)
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -402,6 +402,19 @@ symbol_file_add_main_adapter (const char *arg, int from_tty)
   symbol_file_add_main (arg, add_flags);
 }
 
+/* Perform validation of the '--readnow' and '--readnever' flags.  */
+
+static void
+validate_readnow_readnever ()
+{
+  if (readnever_symbol_files && readnow_symbol_files)
+    {
+      error (_("%s: '--readnow' and '--readnever' cannot be "
+              "specified simultaneously"),
+            gdb_program_name);
+    }
+}
+
 /* Type of this option.  */
 enum cmdarg_kind
 {
@@ -579,14 +592,17 @@ captured_main_1 (struct captured_main_args *context)
       OPT_NOWINDOWS,
       OPT_WINDOWS,
       OPT_IX,
-      OPT_IEX
+      OPT_IEX,
+      OPT_READNOW,
+      OPT_READNEVER
     };
     static struct option long_options[] =
     {
       {"tui", no_argument, 0, OPT_TUI},
       {"dbx", no_argument, &dbx_commands, 1},
-      {"readnow", no_argument, &readnow_symbol_files, 1},
-      {"r", no_argument, &readnow_symbol_files, 1},
+      {"readnow", no_argument, NULL, OPT_READNOW},
+      {"readnever", no_argument, NULL, OPT_READNEVER},
+      {"r", no_argument, NULL, OPT_READNOW},
       {"quiet", no_argument, &quiet, 1},
       {"q", no_argument, &quiet, 1},
       {"silent", no_argument, &quiet, 1},
@@ -809,6 +825,20 @@ captured_main_1 (struct captured_main_args *context)
            }
            break;
 
+         case OPT_READNOW:
+           {
+             readnow_symbol_files = 1;
+             validate_readnow_readnever ();
+           }
+           break;
+
+         case OPT_READNEVER:
+           {
+             readnever_symbol_files = 1;
+             validate_readnow_readnever ();
+           }
+           break;
+
          case '?':
            error (_("Use `%s --help' for a complete list of options."),
                   gdb_program_name);
@@ -1183,6 +1213,7 @@ Selection of debuggee and its files:\n\n\
   --se=FILE          Use FILE as symbol file and executable file.\n\
   --symbols=SYMFILE  Read symbols from SYMFILE.\n\
   --readnow          Fully read symbol files on first access.\n\
+  --readnever        Do not read symbol files.\n\
   --write            Set writing into executable and core files.\n\n\
 "), stream);
   fputs_unfiltered (_("\