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authorJing Yu <jingyu@google.com>2009-11-05 16:55:30 -0800
committerJing Yu <jingyu@google.com>2009-11-05 16:55:30 -0800
commit2cafa61b4b039e5ac3b876fc44a05c61d66df4d4 (patch)
tree1caaaacd28e00e283dbacd6726db52cbf2d5d909 /binutils-2.19/bfd/netbsd.h
parent8d401cf711539af5a2f78d12447341d774892618 (diff)
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check in binutils sources for prebuilt toolchains in Eclair.
Diffstat (limited to 'binutils-2.19/bfd/netbsd.h')
-rw-r--r--binutils-2.19/bfd/netbsd.h120
1 files changed, 120 insertions, 0 deletions
diff --git a/binutils-2.19/bfd/netbsd.h b/binutils-2.19/bfd/netbsd.h
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+/* BFD back-end definitions used by all NetBSD targets.
+ Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 2000, 2002,
+ 2005, 2007 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 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, write to the Free Software
+ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, 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 "sysdep.h"
+#include "bfd.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 bfd_boolean MY (write_object_contents) (bfd *);
+
+#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 bfd_boolean
+MY (write_object_contents) (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);
+ }
+
+ obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
+
+ /* 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;
+}