ld relro

[platform/upstream/binutils.git] / ld / lexsup.c

diff --git a/ld/lexsup.c b/ld/lexsup.c
index 52b4fdb..082a328 100644 (file)
--- a/ld/lexsup.c
+++ b/ld/lexsup.c
@@ -379,6 +379,8 @@ static const struct ld_option ld_options[] =
     EXACTLY_TWO_DASHES },
   { {"print-output-format", no_argument, NULL, OPTION_PRINT_OUTPUT_FORMAT},
     '\0', NULL, N_("Print default output format"), TWO_DASHES },
+  { {"print-sysroot", no_argument, NULL, OPTION_PRINT_SYSROOT},
+    '\0', NULL, N_("Print current sysroot"), TWO_DASHES },
   { {"qmagic", no_argument, NULL, OPTION_IGNORE},
     '\0', NULL, N_("Ignored for Linux compatibility"), ONE_DASH },
   { {"reduce-memory-overheads", no_argument, NULL,
@@ -505,6 +507,12 @@ static const struct ld_option ld_options[] =
     OPTION_IGNORE_UNRESOLVED_SYMBOL},
     '\0', N_("SYMBOL"),
     N_("Unresolved SYMBOL will not cause an error or warning"), TWO_DASHES },
+  { {"push-state", no_argument, NULL, OPTION_PUSH_STATE},
+    '\0', NULL, N_("Push state of flags governing input file handling"),
+    TWO_DASHES },
+  { {"pop-state", no_argument, NULL, OPTION_POP_STATE},
+    '\0', NULL, N_("Pop state of flags governing input file handling"),
+    TWO_DASHES },
 };
 
 #define OPTION_COUNT ARRAY_SIZE (ld_options)
@@ -617,6 +625,9 @@ parse_args (unsigned argc, char **argv)
        }
     }
 
+  optarg = "relro";
+  ldemul_handle_option ('z');
+
   last_optind = -1;
   while (1)
     {
@@ -954,6 +965,11 @@ parse_args (unsigned argc, char **argv)
        case OPTION_OFORMAT:
          lang_add_output_format (optarg, NULL, NULL, 0);
          break;
+       case OPTION_PRINT_SYSROOT:
+         if (*ld_sysroot)
+           puts (ld_sysroot);
+         xexit (0);
+         break;
        case OPTION_PRINT_OUTPUT_FORMAT:
          command_line.print_output_format = TRUE;
          break;
@@ -1444,6 +1460,23 @@ parse_args (unsigned argc, char **argv)
               einfo (_("%P%X: --hash-size needs a numeric argument\n"));
           }
           break;
+
+       case OPTION_PUSH_STATE:
+         input_flags.pushed = xmemdup (&input_flags,
+                                       sizeof (input_flags),
+                                       sizeof (input_flags));
+         break;
+
+       case OPTION_POP_STATE:
+         if (input_flags.pushed == NULL)
+           einfo (_("%P%F: no state pushed before popping\n"));
+         else
+           {
+             struct lang_input_statement_flags *oldp = input_flags.pushed;
+             memcpy (&input_flags, oldp, sizeof (input_flags));
+             free (oldp);
+           }
+         break;
        }
     }