19990502 sourceware importbinu_ss_19990502

1 files changed, 122 insertions, 0 deletions

diff --git a/bfd/netbsd.h b/bfd/netbsd.h
new file mode 100644
index 0000000..a5482f0
--- /dev/null
+++ b/bfd/netbsd.h
@@ -0,0 +1,122 @@
+/* BFD back-end definitions used by all NetBSD targets.
+   Copyright (C) 1990, 91, 92, 94, 95, 96, 97, 1998
+   Free Software Foundation, Inc.
+
+This file is part of BFD, the Binary File Descriptor library.
+
+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 2 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, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+USA.  */
+
+/* Check for our machine type (part of magic number). */
+#ifndef MACHTYPE_OK
+#define MACHTYPE_OK(m) ((m) == DEFAULT_MID || (m) == M_UNKNOWN)
+#endif
+
+/* This is the normal load address for executables. */
+#define TEXT_START_ADDR		TARGET_PAGE_SIZE
+
+/* NetBSD ZMAGIC has its header in the text segment.  */
+#define N_HEADER_IN_TEXT(x)	1
+
+/* Determine if this is a shared library using the flags. */
+#define N_SHARED_LIB(x) 	(N_DYNAMIC(x))
+
+/* We have 6 bits of flags and 10 bits of machine ID.  */
+#define N_MACHTYPE(exec) \
+	((enum machine_type)(((exec).a_info >> 16) & 0x03ff))
+#define N_FLAGS(exec) \
+	(((exec).a_info >> 26) & 0x3f)
+
+#define N_SET_INFO(exec, magic, type, flags) \
+	((exec).a_info = ((magic) & 0xffff) \
+	 | (((int)(type) & 0x3ff) << 16) \
+	 | (((flags) & 0x3f) << 24))
+#define N_SET_MACHTYPE(exec, machtype) \
+	((exec).a_info = \
+         ((exec).a_info & 0xfb00ffff) | ((((int)(machtype))&0x3ff) << 16))
+#define N_SET_FLAGS(exec, flags) \
+	((exec).a_info = \
+	 ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26))
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libaout.h"
+
+/* On NetBSD, the magic number is always in ntohl's "network" (big-endian)
+   format.  */
+#define SWAP_MAGIC(ext) bfd_getb32 (ext)
+
+/* On NetBSD, the entry point may be taken to be the start of the text
+   section.  */
+#define MY_entry_is_text_address 1
+
+#define MY_write_object_contents MY(write_object_contents)
+static boolean MY(write_object_contents) PARAMS ((bfd *abfd));
+#define MY_text_includes_header 1
+
+#include "aout-target.h"
+
+/* Write an object file.
+   Section contents have already been written.  We write the
+   file header, symbols, and relocation.  */
+
+static boolean
+MY(write_object_contents) (abfd)
+     bfd *abfd;
+{
+  struct external_exec exec_bytes;
+  struct internal_exec *execp = exec_hdr (abfd);
+
+  /* We must make certain that the magic number has been set.  This
+     will normally have been done by set_section_contents, but only if
+     there actually are some section contents.  */
+  if (! abfd->output_has_begun)
+    {
+      bfd_size_type text_size;
+      file_ptr text_end;
+
+      NAME(aout,adjust_sizes_and_vmas) (abfd, &text_size, &text_end);
+    }
+
+#if CHOOSE_RELOC_SIZE
+  CHOOSE_RELOC_SIZE(abfd);
+#else
+  obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+#endif
+
+  /* Magic number, maestro, please!  */
+  switch (bfd_get_arch(abfd)) {
+  case DEFAULT_ARCH:
+    N_SET_MACHTYPE(*execp, DEFAULT_MID);
+    break;
+  default:
+    N_SET_MACHTYPE(*execp, M_UNKNOWN);
+    break;
+  }
+
+  /* The NetBSD magic number is always big-endian */
+#ifndef TARGET_IS_BIG_ENDIAN_P
+  /* XXX aren't there any macro to change byteorder of a word independent of
+     the host's or target's endianesses?  */
+  execp->a_info
+    = (execp->a_info & 0xff) << 24 | (execp->a_info & 0xff00) << 8
+      | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24;
+#endif
+
+  WRITE_HEADERS(abfd, execp);
+
+  return true;
+}