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Diffstat (limited to 'binutils-2.19/bfd/netbsd.h')
-rw-r--r-- | binutils-2.19/bfd/netbsd.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/binutils-2.19/bfd/netbsd.h b/binutils-2.19/bfd/netbsd.h new file mode 100644 index 0000000..a117249 --- /dev/null +++ b/binutils-2.19/bfd/netbsd.h @@ -0,0 +1,120 @@ +/* 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; +} |