1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3 2001 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
22 #define BYTES_IN_WORD 4
23 #define N_SHARED_LIB(x) 0
25 #define TEXT_START_ADDR 0
26 #define TARGET_PAGE_SIZE 4096
27 #define SEGMENT_SIZE TARGET_PAGE_SIZE
28 #define DEFAULT_ARCH bfd_arch_sparc
32 #define MY(OP) CAT (sparclynx_aout_,OP)
33 #define TARGETNAME "a.out-sparc-lynx"
39 #include "aout/sun4.h"
40 #include "libaout.h" /* BFD a.out internal data structures */
42 #include "aout/aout64.h"
43 #include "aout/stab_gnu.h"
46 void NAME (lynx
,set_arch_mach
) PARAMS ((bfd
*, unsigned long));
47 static void choose_reloc_size
PARAMS ((bfd
*));
48 static boolean
NAME (aout
,sparclynx_write_object_contents
) PARAMS ((bfd
*));
50 /* This is needed to reject a NewsOS file, e.g. in
51 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
52 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
53 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
54 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
55 || (mtype) == M_68010 \
56 || (mtype) == M_68020 \
57 || (mtype) == M_SPARC)
59 /* The file @code{aoutf1.h} contains the code for BFD's
60 a.out back end. Control over the generated back end is given by these
61 two preprocessor names:
64 This value should be either 32 or 64, depending upon the size of an
65 int in the target format. It changes the sizes of the structs which
66 perform the memory/disk mapping of structures.
68 The 64 bit backend may only be used if the host compiler supports 64
69 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
70 With this name defined, @emph{all} bfd operations are performed with 64bit
71 arithmetic, not just those to a 64bit target.
74 The name put into the target vector.
79 NAME(lynx
,set_arch_mach
) (abfd
, machtype
)
81 unsigned long machtype
;
83 /* Determine the architecture and machine type of the object file. */
84 enum bfd_architecture arch
;
85 unsigned long machine
;
90 /* Some Sun3s make magic numbers without cpu types in them, so
91 we'll default to the 68000. */
93 machine
= bfd_mach_m68000
;
99 machine
= bfd_mach_m68010
;
104 arch
= bfd_arch_m68k
;
105 machine
= bfd_mach_m68020
;
109 arch
= bfd_arch_sparc
;
115 arch
= bfd_arch_i386
;
120 arch
= bfd_arch_a29k
;
125 arch
= bfd_arch_m68k
;
130 arch
= bfd_arch_obscure
;
134 bfd_set_arch_mach (abfd
, arch
, machine
);
137 #define SET_ARCH_MACH(ABFD, EXEC) \
138 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
139 choose_reloc_size(ABFD);
141 /* Determine the size of a relocation entry, based on the architecture. */
144 choose_reloc_size (abfd
)
147 switch (bfd_get_arch (abfd
))
151 obj_reloc_entry_size (abfd
) = RELOC_EXT_SIZE
;
154 obj_reloc_entry_size (abfd
) = RELOC_STD_SIZE
;
159 /* Write an object file in LynxOS format.
160 Section contents have already been written. We write the
161 file header, symbols, and relocation. */
164 NAME(aout
,sparclynx_write_object_contents
) (abfd
)
167 struct external_exec exec_bytes
;
168 struct internal_exec
*execp
= exec_hdr (abfd
);
170 /* Magic number, maestro, please! */
171 switch (bfd_get_arch (abfd
))
174 switch (bfd_get_mach (abfd
))
176 case bfd_mach_m68010
:
177 N_SET_MACHTYPE (*execp
, M_68010
);
180 case bfd_mach_m68020
:
181 N_SET_MACHTYPE (*execp
, M_68020
);
186 N_SET_MACHTYPE (*execp
, M_SPARC
);
189 N_SET_MACHTYPE (*execp
, M_386
);
192 N_SET_MACHTYPE (*execp
, M_29K
);
195 N_SET_MACHTYPE (*execp
, M_UNKNOWN
);
198 choose_reloc_size (abfd
);
200 N_SET_FLAGS (*execp
, aout_backend_info (abfd
)->exec_hdr_flags
);
202 WRITE_HEADERS (abfd
, execp
);
207 #define MY_set_sizes sparclynx_set_sizes
208 static boolean sparclynx_set_sizes
PARAMS ((bfd
*));
211 sparclynx_set_sizes (abfd
)
214 switch (bfd_get_arch (abfd
))
219 adata (abfd
).page_size
= 0x2000;
220 adata (abfd
).segment_size
= 0x2000;
221 adata (abfd
).exec_bytes_size
= EXEC_BYTES_SIZE
;
224 adata (abfd
).page_size
= 0x2000;
225 adata (abfd
).segment_size
= 0x20000;
226 adata (abfd
).exec_bytes_size
= EXEC_BYTES_SIZE
;
231 static const struct aout_backend_data sparclynx_aout_backend
=
233 0, 1, 0, 1, 0, sparclynx_set_sizes
, 0,
234 0, /* add_dynamic_symbols */
235 0, /* add_one_symbol */
236 0, /* link_dynamic_object */
237 0, /* write_dynamic_symbol */
238 0, /* check_dynamic_reloc */
239 0 /* finish_dynamic_link */
243 #define MY_bfd_debug_info_start bfd_void
244 #define MY_bfd_debug_info_end bfd_void
245 #define MY_bfd_debug_info_accumulate \
246 (void (*) PARAMS ((bfd *, struct sec *))) bfd_void
248 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
249 #define MY_backend_data &sparclynx_aout_backend
251 #define TARGET_IS_BIG_ENDIAN_P
255 char * lynx_core_file_failing_command ();
256 int lynx_core_file_failing_signal ();
257 boolean
lynx_core_file_matches_executable_p ();
258 const bfd_target
* lynx_core_file_p ();
260 #define MY_core_file_failing_command lynx_core_file_failing_command
261 #define MY_core_file_failing_signal lynx_core_file_failing_signal
262 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
263 #define MY_core_file_p lynx_core_file_p
265 #endif /* LYNX_CORE */
267 #include "aout-target.h"