| /* BFD back-end definitions used by all NetBSD targets. |
| Copyright (C) 1990-2024 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(execp) \ |
| ((enum machine_type) (((execp)->a_info >> 16) & 0x03ff)) |
| #define N_FLAGS(execp) \ |
| (((execp)->a_info >> 26) & 0x3f) |
| |
| #define N_SET_INFO(execp, magic, type, flags) \ |
| ((execp)->a_info = ((magic) & 0xffff) \ |
| | (((int) (type) & 0x3ff) << 16) \ |
| | (((flags) & 0x3f) << 24)) |
| #define N_SET_MACHTYPE(execp, machtype) \ |
| ((execp)->a_info = \ |
| ((execp)->a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16)) |
| #define N_SET_FLAGS(execp, flags) \ |
| ((execp)->a_info = \ |
| ((execp)->a_info & 0x03ffffff) | ((flags & 0x3fu) << 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 bool 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 bool |
| 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) |
| NAME (aout, adjust_sizes_and_vmas) (abfd); |
| |
| 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 endiannesses? */ |
| execp->a_info |
| = (execp->a_info & 0xffu) << 24 | (execp->a_info & 0xff00) << 8 |
| | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24; |
| #endif |
| |
| WRITE_HEADERS (abfd, execp); |
| |
| return true; |
| } |