Merge mainline into newreloc. For now without boot tests

grub-core/loader/aout.c

@@ -0,0 +1,60 @@
+/*
+ *  Copyright (C) 2008 Free Software Foundation, Inc.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/file.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/aout.h>
+
+int
+grub_aout_get_type (union grub_aout_header *header)
+{
+  int magic;
+
+  magic = AOUT_GETMAGIC (header->aout32);
+  if ((magic == AOUT32_OMAGIC) || (magic == AOUT32_NMAGIC) ||
+      (magic == AOUT32_ZMAGIC) || (magic == AOUT32_QMAGIC))
+    return AOUT_TYPE_AOUT32;
+  else if ((magic == AOUT64_OMAGIC) || (magic == AOUT64_NMAGIC) ||
+	   (magic == AOUT64_ZMAGIC))
+    return AOUT_TYPE_AOUT64;
+  else
+    return AOUT_TYPE_NONE;
+}
+
+grub_err_t
+grub_aout_load (grub_file_t file, int offset,
+                void *load_addr,
+		int load_size, grub_size_t bss_size)
+{
+  if ((grub_file_seek (file, offset)) == (grub_off_t) - 1)
+    return grub_errno;
+
+  if (!load_size)
+    load_size = file->size - offset;
+
+  grub_file_read (file, load_addr, load_size);
+
+  if (grub_errno)
+    return grub_errno;
+
+  if (bss_size)
+    grub_memset ((char *) load_addr + load_size, 0, bss_size);
+
+  return GRUB_ERR_NONE;
+}