Add support for netbsd386 (almost-but-not-quite 386bsd).

1 files changed, 111 insertions, 0 deletions

diff --git a/bfd/netbsd386.c b/bfd/netbsd386.c
new file mode 100644
index 0000000..207638a
--- /dev/null
+++ b/bfd/netbsd386.c
@@ -0,0 +1,111 @@
+/* BFD back-end for NetBSD/386 a.out-ish binaries.
+   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.  */
+
+#define	BYTES_IN_WORD	4
+#define	ARCH	32
+
+/* ZMAGIC files never have the header in the text.  */
+#define	N_HEADER_IN_TEXT(x)	0
+
+/* ZMAGIC files start at address 0.  This does not apply to QMAGIC.  */
+#define TEXT_START_ADDR 0
+
+#define	PAGE_SIZE	4096
+#define	SEGMENT_SIZE	PAGE_SIZE
+
+#define	DEFAULT_ARCH	bfd_arch_i386
+#define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_I386 || (mtype) == M_UNKNOWN)
+
+#define MY(OP) CAT(netbsd386_,OP)
+#define TARGETNAME "netbsd-386"
+
+#define N_MAGIC(ex) \
+    ( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : ((ex).a_info))
+#define N_MACHTYPE(ex) \
+    ( (((ex).a_info)&0xffff0000) ? ((ntohl(((ex).a_info))>>16)&0x03ff) : 0 )
+# define N_FLAGS(ex) \
+    ( (((ex).a_info)&0xffff0000) ? ((ntohl(((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))
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libaout.h"
+
+#define N_GETMAGIC2(ex) \
+    ( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : \
+    (((ex).a_info) | 0x10000) )
+
+#define N_TXTADDR(ex)	(N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : 4096)
+#define N_TXTOFF(ex) \
+	( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
+	0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? 4096 : EXEC_BYTES_SIZE ))
+#define N_ALIGN(ex,x) \
+	(N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \
+	 ((x) + 4096 - 1) & ~(4096 - 1) : (x))
+#define N_DATADDR(ex) \
+	N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
+/* Data segment offset. */
+#define	N_DATOFF(ex) \
+	N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
+
+/* #define N_BADMAG(x)	n_badmag(N_MAGIC(x)) */
+
+#define NO_SWAP_MAGIC	/* magic number already in correct endian format */
+
+#include "aout-target.h"
+
+#if 0
+int
+n_badmag(x)
+unsigned long x; {
+  union {
+    unsigned long l;
+    unsigned char c[sizeof(unsigned long)];
+  } l;
+  unsigned char temp;
+
+  printf ("x = %o, OMAGIC = %o, NMAGIC = %o, ZMAGIC = %o, QMAGIC = %o\n",
+	  x, OMAGIC, NMAGIC, ZMAGIC, QMAGIC);
+
+  l.l = x;
+  temp = l.c[0];
+  l.c[0] = l.c[3];
+  l.c[3] = temp;
+  temp = l.c[2];
+  l.c[2] = l.c[1];
+  l.c[1] = temp;
+  printf ("\tbyte-swapped(x) = %o\n", l.l);
+  
+  return (x != OMAGIC
+	  && x != NMAGIC
+	  && x != ZMAGIC
+	  && x != QMAGIC);
+}
+#endif
+