+Tue Jul 5 13:26:02 1994 Stan Shebs (shebs@andros.cygnus.com)
+
+ Mach 3 support.
+ * config.bfd (m88*-*-mach3*, mips*-dec-mach3*, mips*-*-mach3*):
+ New targets.
+ * configure.host (i[34]86-*-mach3*, ns32k-*-mach3*): Recognize
+ "mach3" instead of "mach".
+ (m88*-*-mach3*, mips*-dec-mach3*, mips*-*-mach3*): New hosts.
+ * targets.c (m88kmach3_vec): New target vector.
+ (bfd_target_vector): Add i386mach3_vec and m88kmach3_vec, but
+ inside #if 0.
+ * aoutx.h (some_aout_object_p) [MACH]: Recognize executables by
+ checking for execute permission, instead of looking at entry
+ point.
+ * i386mach3.c: Update, define MACH, N_TXTOFF, N_TXTADDR,
+ N_SHARED_LIB, don't include aout/*.h files, etc.
+ * m88kmach3.c: New file, m88k Mach 3 target.
+ * config/m88k-mach3.mt, config/mips-mach3.mt: New files, target
+ makefile fragments.
+ * config/i386mach3.mh, config/m88kmach3.mh, config/mipsmach3.mh:
+ New files, host makefile fragments.
+ * hosts/m88kmach3.h, hosts/mipsmach3.h: New files, host definitions.
+
Tue Jul 5 13:56:52 1994 Ian Lance Taylor (ian@sanguine.cygnus.com)
* elfcode.h (swap_out_syms): Get alignment of common symbol from
obj_datasec (abfd)->_raw_size = execp->a_data;
obj_bsssec (abfd)->_raw_size = execp->a_bss;
- /* If this object is dynamically linked, we assume that both
- sections have relocs. This does no real harm, even though it may
- not be true. */
obj_textsec (abfd)->flags =
- (execp->a_trsize != 0 || (abfd->flags & DYNAMIC) != 0
+ (execp->a_trsize != 0
? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
: (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
obj_datasec (abfd)->flags =
- (execp->a_drsize != 0 || (abfd->flags & DYNAMIC) != 0
+ (execp->a_drsize != 0
? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
: (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
obj_bsssec (abfd)->flags = SEC_ALLOC;
result = (*callback_to_real_object_p)(abfd);
+#ifdef MACH
+ /* Stat the file to decide whether or not it's executable.
+ Many Mach programs use text at very unconventional addresses,
+ including the emulator, so the standard heuristic is incorrect. */
+ {
+ struct stat st;
+
+ stat (abfd->filename, &st);
+ /* Are any exec 'x' bits on? */
+ if (st.st_mode & 0111)
+ abfd->flags |= EXEC_P;
+ }
+#else /* ! MACH */
/* Now that the segment addresses have been worked out, take a better
guess at whether the file is executable. If the entry point
is within the text segment, assume it is. (This makes files
if ((execp->a_entry >= obj_textsec(abfd)->vma) &&
(execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size))
abfd->flags |= EXEC_P;
+#endif /* MACH */
if (result)
{
#if 0 /* These should be set correctly anyways. */
--- /dev/null
+#include "hosts/std-host.h"
+
+#include <machine/vmparam.h>
+#include <sys/param.h>
+
+#ifndef MACH
+#define MACH
+#endif
+
+#undef UPAGES
+#define UPAGES 3
+
+#define HAVE_STRERROR
+
+#define HOST_PAGE_SIZE NBPG
+#define HOST_SEGMENT_SIZE NBPG
+#define HOST_MACHINE_ARCH bfd_arch_m88k
+#define HOST_TEXT_START_ADDR USRTEXT
+#define HOST_STACK_END_ADDR USRSTACK
--- /dev/null
+#include "hosts/std-host.h"
+
+#include <machine/vmparam.h>
+#include <machine/machparam.h>
+#include <sys/param.h>
+
+#define HOST_PAGE_SIZE NBPG
+/* #define HOST_SEGMENT_SIZE NBPG */
+#define HOST_MACHINE_ARCH bfd_arch_mips
+#define HOST_TEXT_START_ADDR USRTEXT
+#define HOST_DATA_START_ADDR USRDATA
+#define HOST_STACK_END_ADDR USRSTACK
--- /dev/null
+/* BFD back-end for Motorola m88k a.out (Mach 3) binaries.
+ Copyright (C) 1990, 1991, 1993, 1994 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. */
+
+#ifndef MACH
+#define MACH
+#endif
+
+#define PAGE_SIZE (4096*2)
+#define SEGMENT_SIZE 0x20000
+#define TEXT_START_ADDR 0
+#define BYTES_IN_WORD 4
+#define N_HEADER_IN_TEXT(x) 1 /* (N_MAGIG(x) == ZMAGIC) */
+
+#define N_TXTSIZE(x) ((x).a_text)
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libaout.h"
+
+#define DEFAULT_ARCH bfd_arch_m88k
+#define MY(OP) CAT(m88kmach3_,OP)
+#define TARGETNAME "a.out-m88k-mach3"
+
+#include "aout-target.h"
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