/* BFD back-end definitions used by all NetBSD targets.
- Copyright (C) 1990, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-/* NetBSD fits its header into the start of its text segment */
-#define N_HEADER_IN_TEXT(x) 1
-#define TEXT_START_ADDR PAGE_SIZE
-
-#define N_MAGIC(ex) \
- ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : ((ex).a_info) )
-#define N_MACHTYPE(ex) \
- ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info)>>16)&0x03ff) : 0 )
-# define N_FLAGS(ex) \
- ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info)>>26)&0x3f) : 0 )
-#define N_SET_INFO(ex, mag,mid,flag) \
- ( (ex).a_info = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \
- (((mag)&0xffff)) ) )
-#define N_SET_MAGIC(exec,magic) \
- ((exec).a_info = (((exec).a_info & ~0xffff) | ((magic) & 0xffff)))
-#define N_SET_MACHTYPE(exec,machtype) \
- ((exec).a_info = \
- (((exec).a_info & ~(0x3ff<<16)) | (((machtype)&0xff) << 16)))
-#define N_SET_FLAGS(exec, flags) \
- ((exec).a_info = ((exec).a_info & 0xffff) | (flags & 0xffff))
+ Copyright (C) 1990-2020 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 "bfd.h"
#include "sysdep.h"
+#include "bfd.h"
#include "libbfd.h"
#include "libaout.h"
-#define N_GETMAGIC(ex) \
- ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : ((ex).a_info))
-#define N_GETMAGIC2(ex) \
- ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : \
- (((ex).a_info) | 0x10000) )
-
-#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ)
-#define N_TXTOFF(ex) \
- ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
- 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : EXEC_BYTES_SIZE ))
-#define N_ALIGN(ex,x) \
- (N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \
- ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x))
-#define N_DATADDR(ex) \
- (N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \
- (N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1))
-
-/* Data segment offset. */
-#define N_DATOFF(ex) \
- N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
-
/* 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)
+ 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;
+}
projects / thirdparty / binutils-gdb.git / blobdiff