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- /* BFD support for Sparc binaries under LynxOS.
- Copyright (C) 1990, 1991, 1992, 1993 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 ARCH 32
-
- #if 0
- #define BYTES_IN_WORD 4
- #define N_SHARED_LIB(x) 0
-
- #define TEXT_START_ADDR 0
- #define PAGE_SIZE 4096
- #define SEGMENT_SIZE PAGE_SIZE
- #define DEFAULT_ARCH bfd_arch_sparc
-
- #endif
-
- #define MY(OP) CAT(sparclynx_aout_,OP)
- #define TARGETNAME "a.out-sparc-lynx"
-
- #include "bfd.h"
- #include "sysdep.h"
- #include "libbfd.h"
-
- #include "aout/sun4.h"
- #include "libaout.h" /* BFD a.out internal data structures */
-
- #include "aout/aout64.h"
- #include "aout/stab_gnu.h"
- #include "aout/ar.h"
-
- /* This is needed to reject a NewsOS file, e.g. in
- gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
- I needed to add M_UNKNOWN to recognize a 68000 object, so this will
- probably no longer reject a NewsOS object. <ian@cygnus.com>. */
- #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
- || (mtype) == M_68010 \
- || (mtype) == M_68020 \
- || (mtype) == M_SPARC)
-
- /*
- The file @code{aoutf1.h} contains the code for BFD's
- a.out back end. Control over the generated back end is given by these
- two preprocessor names:
- @table @code
- @item ARCH_SIZE
- This value should be either 32 or 64, depending upon the size of an
- int in the target format. It changes the sizes of the structs which
- perform the memory/disk mapping of structures.
-
- The 64 bit backend may only be used if the host compiler supports 64
- ints (eg long long with gcc), by defining the name @code{HOST_64_BIT} in @code{bfd.h}.
- With this name defined, @emph{all} bfd operations are performed with 64bit
- arithmetic, not just those to a 64bit target.
-
- @item TARGETNAME
- The name put into the target vector.
- @item
- @end table
-
- */
-
- /*SUPPRESS558*/
- /*SUPPRESS529*/
-
- void
- DEFUN(NAME(lynxos,set_arch_mach), (abfd, machtype),
- bfd *abfd AND int machtype)
- {
- /* Determine the architecture and machine type of the object file. */
- enum bfd_architecture arch;
- long machine;
- switch (machtype) {
-
- case M_UNKNOWN:
- /* Some Sun3s make magic numbers without cpu types in them, so
- we'll default to the 68000. */
- arch = bfd_arch_m68k;
- machine = 68000;
- break;
-
- case M_68010:
- case M_HP200:
- arch = bfd_arch_m68k;
- machine = 68010;
- break;
-
- case M_68020:
- case M_HP300:
- arch = bfd_arch_m68k;
- machine = 68020;
- break;
-
- case M_SPARC:
- arch = bfd_arch_sparc;
- machine = 0;
- break;
-
- case M_386:
- case M_386_DYNIX:
- arch = bfd_arch_i386;
- machine = 0;
- break;
-
- case M_29K:
- arch = bfd_arch_a29k;
- machine = 0;
- break;
-
- case M_HPUX:
- arch = bfd_arch_m68k;
- machine = 0;
- break;
-
- default:
- arch = bfd_arch_obscure;
- machine = 0;
- break;
- }
- bfd_set_arch_mach(abfd, arch, machine);
- }
-
- #define SET_ARCH_MACH(ABFD, EXEC) \
- NAME(lynxos,set_arch_mach)(ABFD, N_MACHTYPE (EXEC)); \
- choose_reloc_size(ABFD);
-
- /* Determine the size of a relocation entry, based on the architecture */
- static void
- DEFUN(choose_reloc_size,(abfd),
- bfd *abfd)
- {
- switch (bfd_get_arch(abfd)) {
- case bfd_arch_sparc:
- case bfd_arch_a29k:
- obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
- break;
- default:
- obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
- break;
- }
- }
-
- /* Write an object file in Lynxos format.
- Section contents have already been written. We write the
- file header, symbols, and relocation. */
-
- static boolean
- DEFUN(NAME(aout,sparclynx_write_object_contents),
- (abfd),
- bfd *abfd)
- {
- struct external_exec exec_bytes;
- struct internal_exec *execp = exec_hdr (abfd);
-
- /* Magic number, maestro, please! */
- switch (bfd_get_arch(abfd)) {
- case bfd_arch_m68k:
- switch (bfd_get_mach(abfd)) {
- case 68010:
- N_SET_MACHTYPE(*execp, M_68010);
- break;
- default:
- case 68020:
- N_SET_MACHTYPE(*execp, M_68020);
- break;
- }
- break;
- case bfd_arch_sparc:
- N_SET_MACHTYPE(*execp, M_SPARC);
- break;
- case bfd_arch_i386:
- N_SET_MACHTYPE(*execp, M_386);
- break;
- case bfd_arch_a29k:
- N_SET_MACHTYPE(*execp, M_29K);
- break;
- default:
- N_SET_MACHTYPE(*execp, M_UNKNOWN);
- }
-
- choose_reloc_size(abfd);
-
- #if 0
- /* Some tools want this to be 0, some tools want this to be one.
- Today, it seems that 0 is the most important setting (PR1927) */
- N_SET_FLAGS (*execp, 0x0);
- #else
-
- /* Fri Jun 11 14:23:31 PDT 1993
- FIXME
- Today's optimal setting is 1. This is a pain, since it
- reopens 1927. This should be readdressed by creating a new
- target for each each supported, giving perhaps sun3/m68k
- and sun4/sparc a.out formats.
- */
- N_SET_FLAGS (*execp, 1);
- #endif
-
- WRITE_HEADERS(abfd, execp);
-
- return true;
- }
-
- #define MY_set_sizes sparclynx_set_sizes
- static boolean
- DEFUN (sparclynx_set_sizes, (abfd),
- bfd *abfd)
- {
- switch (bfd_get_arch (abfd))
- {
- default:
- return false;
- case bfd_arch_sparc:
- adata(abfd).page_size = 0x2000;
- adata(abfd).segment_size = 0x2000;
- adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
- return true;
- case bfd_arch_m68k:
- adata(abfd).page_size = 0x2000;
- adata(abfd).segment_size = 0x20000;
- adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
- return true;
- }
- }
-
- static CONST struct aout_backend_data sparclynx_aout_backend = {
- 0, 1, 0, sparclynx_set_sizes, 0,
- };
-
-
- #define MY_bfd_debug_info_start bfd_void
- #define MY_bfd_debug_info_end bfd_void
- #define MY_bfd_debug_info_accumulate \
- (void (*) PARAMS ((bfd *, struct sec *))) bfd_void
-
- #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
- #define MY_backend_data &sparclynx_aout_backend
-
- #define TARGET_IS_BIG_ENDIAN_P
-
- #include "aout-target.h"
-