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119 lines
3.7 KiB
119 lines
3.7 KiB
/* BFD back-end definitions used by all NetBSD targets. |
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Copyright (C) 1990-2014 Free Software Foundation, Inc. |
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This file is part of BFD, the Binary File Descriptor library. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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MA 02110-1301, USA. */ |
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/* Check for our machine type (part of magic number). */ |
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#ifndef MACHTYPE_OK |
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#define MACHTYPE_OK(m) ((m) == DEFAULT_MID || (m) == M_UNKNOWN) |
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#endif |
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/* This is the normal load address for executables. */ |
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#define TEXT_START_ADDR TARGET_PAGE_SIZE |
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/* NetBSD ZMAGIC has its header in the text segment. */ |
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#define N_HEADER_IN_TEXT(x) 1 |
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/* Determine if this is a shared library using the flags. */ |
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#define N_SHARED_LIB(x) (N_DYNAMIC (x)) |
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/* We have 6 bits of flags and 10 bits of machine ID. */ |
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#define N_MACHTYPE(exec) \ |
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((enum machine_type) (((exec).a_info >> 16) & 0x03ff)) |
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#define N_FLAGS(exec) \ |
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(((exec).a_info >> 26) & 0x3f) |
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#define N_SET_INFO(exec, magic, type, flags) \ |
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((exec).a_info = ((magic) & 0xffff) \ |
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| (((int) (type) & 0x3ff) << 16) \ |
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| (((flags) & 0x3f) << 24)) |
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#define N_SET_MACHTYPE(exec, machtype) \ |
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((exec).a_info = \ |
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((exec).a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16)) |
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#define N_SET_FLAGS(exec, flags) \ |
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((exec).a_info = \ |
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((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26)) |
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#include "sysdep.h" |
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#include "bfd.h" |
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#include "libbfd.h" |
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#include "libaout.h" |
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/* On NetBSD, the magic number is always in ntohl's "network" (big-endian) |
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format. */ |
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#define SWAP_MAGIC(ext) bfd_getb32 (ext) |
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/* On NetBSD, the entry point may be taken to be the start of the text |
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section. */ |
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#define MY_entry_is_text_address 1 |
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#define MY_write_object_contents MY (write_object_contents) |
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static bfd_boolean MY (write_object_contents) (bfd *); |
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#define MY_text_includes_header 1 |
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#include "aout-target.h" |
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/* Write an object file. |
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Section contents have already been written. We write the |
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file header, symbols, and relocation. */ |
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static bfd_boolean |
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MY (write_object_contents) (bfd *abfd) |
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{ |
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struct external_exec exec_bytes; |
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struct internal_exec *execp = exec_hdr (abfd); |
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/* We must make certain that the magic number has been set. This |
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will normally have been done by set_section_contents, but only if |
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there actually are some section contents. */ |
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if (! abfd->output_has_begun) |
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{ |
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bfd_size_type text_size; |
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file_ptr text_end; |
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NAME (aout, adjust_sizes_and_vmas) (abfd, & text_size, & text_end); |
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} |
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obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; |
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/* Magic number, maestro, please! */ |
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switch (bfd_get_arch(abfd)) |
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{ |
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case DEFAULT_ARCH: |
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N_SET_MACHTYPE(*execp, DEFAULT_MID); |
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break; |
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default: |
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N_SET_MACHTYPE(*execp, M_UNKNOWN); |
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break; |
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} |
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/* The NetBSD magic number is always big-endian. */ |
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#ifndef TARGET_IS_BIG_ENDIAN_P |
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/* XXX aren't there any macro to change byteorder of a word independent of |
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the host's or target's endiannesses? */ |
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execp->a_info |
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= (execp->a_info & 0xff) << 24 | (execp->a_info & 0xff00) << 8 |
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| (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24; |
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#endif |
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WRITE_HEADERS (abfd, execp); |
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return TRUE; |
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}
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