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.
This commit is contained in:
Stan Shebs
parent
10f67315f9
commit
11676adc14
@ -1,3 +1,26 @@
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Tue Jul 5 13:26:02 1994 Stan Shebs (shebs@andros.cygnus.com)
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Mach 3 support.
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* config.bfd (m88*-*-mach3*, mips*-dec-mach3*, mips*-*-mach3*):
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New targets.
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* configure.host (i[34]86-*-mach3*, ns32k-*-mach3*): Recognize
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"mach3" instead of "mach".
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(m88*-*-mach3*, mips*-dec-mach3*, mips*-*-mach3*): New hosts.
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* targets.c (m88kmach3_vec): New target vector.
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(bfd_target_vector): Add i386mach3_vec and m88kmach3_vec, but
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inside #if 0.
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* aoutx.h (some_aout_object_p) [MACH]: Recognize executables by
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checking for execute permission, instead of looking at entry
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point.
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* i386mach3.c: Update, define MACH, N_TXTOFF, N_TXTADDR,
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N_SHARED_LIB, don't include aout/*.h files, etc.
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* m88kmach3.c: New file, m88k Mach 3 target.
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* config/m88k-mach3.mt, config/mips-mach3.mt: New files, target
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makefile fragments.
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* config/i386mach3.mh, config/m88kmach3.mh, config/mipsmach3.mh:
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New files, host makefile fragments.
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* hosts/m88kmach3.h, hosts/mipsmach3.h: New files, host definitions.
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Tue Jul 5 13:56:52 1994 Ian Lance Taylor (ian@sanguine.cygnus.com)
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* elfcode.h (swap_out_syms): Get alignment of common symbol from
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21
bfd/aoutx.h
21
bfd/aoutx.h
@ -481,15 +481,12 @@ NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p)
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obj_datasec (abfd)->_raw_size = execp->a_data;
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obj_bsssec (abfd)->_raw_size = execp->a_bss;
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/* If this object is dynamically linked, we assume that both
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sections have relocs. This does no real harm, even though it may
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not be true. */
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obj_textsec (abfd)->flags =
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(execp->a_trsize != 0 || (abfd->flags & DYNAMIC) != 0
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(execp->a_trsize != 0
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? (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS | SEC_RELOC)
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: (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_HAS_CONTENTS));
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obj_datasec (abfd)->flags =
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(execp->a_drsize != 0 || (abfd->flags & DYNAMIC) != 0
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(execp->a_drsize != 0
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? (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS | SEC_RELOC)
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: (SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_HAS_CONTENTS));
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obj_bsssec (abfd)->flags = SEC_ALLOC;
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@ -553,6 +550,19 @@ NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p)
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result = (*callback_to_real_object_p)(abfd);
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#ifdef MACH
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/* Stat the file to decide whether or not it's executable.
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Many Mach programs use text at very unconventional addresses,
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including the emulator, so the standard heuristic is incorrect. */
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{
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struct stat st;
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stat (abfd->filename, &st);
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/* Are any exec 'x' bits on? */
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if (st.st_mode & 0111)
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abfd->flags |= EXEC_P;
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}
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#else /* ! MACH */
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/* Now that the segment addresses have been worked out, take a better
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guess at whether the file is executable. If the entry point
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is within the text segment, assume it is. (This makes files
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@ -564,6 +574,7 @@ NAME(aout,some_aout_object_p) (abfd, execp, callback_to_real_object_p)
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if ((execp->a_entry >= obj_textsec(abfd)->vma) &&
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(execp->a_entry < obj_textsec(abfd)->vma + obj_textsec(abfd)->_raw_size))
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abfd->flags |= EXEC_P;
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#endif /* MACH */
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if (result)
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{
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#if 0 /* These should be set correctly anyways. */
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19
bfd/hosts/m88kmach3.h
Normal file
19
bfd/hosts/m88kmach3.h
Normal file
@ -0,0 +1,19 @@
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#include "hosts/std-host.h"
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#include <machine/vmparam.h>
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#include <sys/param.h>
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#ifndef MACH
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#define MACH
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#endif
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#undef UPAGES
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#define UPAGES 3
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#define HAVE_STRERROR
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#define HOST_PAGE_SIZE NBPG
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#define HOST_SEGMENT_SIZE NBPG
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#define HOST_MACHINE_ARCH bfd_arch_m88k
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#define HOST_TEXT_START_ADDR USRTEXT
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#define HOST_STACK_END_ADDR USRSTACK
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12
bfd/hosts/mipsmach3.h
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12
bfd/hosts/mipsmach3.h
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@ -0,0 +1,12 @@
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#include "hosts/std-host.h"
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#include <machine/vmparam.h>
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#include <machine/machparam.h>
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#include <sys/param.h>
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#define HOST_PAGE_SIZE NBPG
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/* #define HOST_SEGMENT_SIZE NBPG */
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#define HOST_MACHINE_ARCH bfd_arch_mips
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#define HOST_TEXT_START_ADDR USRTEXT
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#define HOST_DATA_START_ADDR USRDATA
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#define HOST_STACK_END_ADDR USRSTACK
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41
bfd/m88kmach3.c
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41
bfd/m88kmach3.c
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@ -0,0 +1,41 @@
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/* BFD back-end for Motorola m88k a.out (Mach 3) binaries.
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Copyright (C) 1990, 1991, 1993, 1994 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 2 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#ifndef MACH
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#define MACH
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#endif
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#define PAGE_SIZE (4096*2)
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#define SEGMENT_SIZE 0x20000
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#define TEXT_START_ADDR 0
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#define BYTES_IN_WORD 4
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#define N_HEADER_IN_TEXT(x) 1 /* (N_MAGIG(x) == ZMAGIC) */
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#define N_TXTSIZE(x) ((x).a_text)
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "libaout.h"
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#define DEFAULT_ARCH bfd_arch_m88k
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#define MY(OP) CAT(m88kmach3_,OP)
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#define TARGETNAME "a.out-m88k-mach3"
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#include "aout-target.h"
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