1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3 2001, 2002, 2003, 2005 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
21 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
22 remove whitespace added here, and thus will fail to concatenate
24 #define MY(OP) CONCAT2 (sparclynx_aout_,OP)
25 #define TARGETNAME "a.out-sparc-lynx"
31 #include "aout/sun4.h"
32 #include "libaout.h" /* BFD a.out internal data structures */
34 #include "aout/aout64.h"
35 #include "aout/stab_gnu.h"
38 void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long));
39 static void choose_reloc_size PARAMS ((bfd *));
40 static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *));
42 /* This is needed to reject a NewsOS file, e.g. in
43 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
44 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
45 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
46 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
47 || (mtype) == M_68010 \
48 || (mtype) == M_68020 \
49 || (mtype) == M_SPARC)
51 /* The file @code{aoutf1.h} contains the code for BFD's
52 a.out back end. Control over the generated back end is given by these
53 two preprocessor names:
56 This value should be either 32 or 64, depending upon the size of an
57 int in the target format. It changes the sizes of the structs which
58 perform the memory/disk mapping of structures.
60 The 64 bit backend may only be used if the host compiler supports 64
61 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
62 With this name defined, @emph{all} bfd operations are performed with 64bit
63 arithmetic, not just those to a 64bit target.
66 The name put into the target vector.
71 NAME(lynx,set_arch_mach) (abfd, machtype)
73 unsigned long machtype;
75 /* Determine the architecture and machine type of the object file. */
76 enum bfd_architecture arch;
77 unsigned long machine;
82 /* Some Sun3s make magic numbers without cpu types in them, so
83 we'll default to the 68000. */
85 machine = bfd_mach_m68000;
91 machine = bfd_mach_m68010;
97 machine = bfd_mach_m68020;
101 arch = bfd_arch_sparc;
107 arch = bfd_arch_i386;
112 arch = bfd_arch_a29k;
117 arch = bfd_arch_m68k;
122 arch = bfd_arch_obscure;
126 bfd_set_arch_mach (abfd, arch, machine);
129 #define SET_ARCH_MACH(ABFD, EXEC) \
130 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
131 choose_reloc_size(ABFD);
133 /* Determine the size of a relocation entry, based on the architecture. */
136 choose_reloc_size (abfd)
139 switch (bfd_get_arch (abfd))
143 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
146 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
151 /* Write an object file in LynxOS format.
152 Section contents have already been written. We write the
153 file header, symbols, and relocation. */
156 NAME(aout,sparclynx_write_object_contents) (abfd)
159 struct external_exec exec_bytes;
160 struct internal_exec *execp = exec_hdr (abfd);
162 /* Magic number, maestro, please! */
163 switch (bfd_get_arch (abfd))
166 switch (bfd_get_mach (abfd))
168 case bfd_mach_m68010:
169 N_SET_MACHTYPE (*execp, M_68010);
172 case bfd_mach_m68020:
173 N_SET_MACHTYPE (*execp, M_68020);
178 N_SET_MACHTYPE (*execp, M_SPARC);
181 N_SET_MACHTYPE (*execp, M_386);
184 N_SET_MACHTYPE (*execp, M_29K);
187 N_SET_MACHTYPE (*execp, M_UNKNOWN);
190 choose_reloc_size (abfd);
192 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
194 WRITE_HEADERS (abfd, execp);
199 #define MY_set_sizes sparclynx_set_sizes
200 static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
203 sparclynx_set_sizes (abfd)
206 switch (bfd_get_arch (abfd))
211 adata (abfd).page_size = 0x2000;
212 adata (abfd).segment_size = 0x2000;
213 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
216 adata (abfd).page_size = 0x2000;
217 adata (abfd).segment_size = 0x20000;
218 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
223 static const struct aout_backend_data sparclynx_aout_backend =
225 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
226 0, /* add_dynamic_symbols */
227 0, /* add_one_symbol */
228 0, /* link_dynamic_object */
229 0, /* write_dynamic_symbol */
230 0, /* check_dynamic_reloc */
231 0 /* finish_dynamic_link */
235 #define MY_bfd_debug_info_start bfd_void
236 #define MY_bfd_debug_info_end bfd_void
237 #define MY_bfd_debug_info_accumulate \
238 (void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void
240 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
241 #define MY_backend_data &sparclynx_aout_backend
243 #define TARGET_IS_BIG_ENDIAN_P
247 char * lynx_core_file_failing_command ();
248 int lynx_core_file_failing_signal ();
249 bfd_boolean lynx_core_file_matches_executable_p ();
250 const bfd_target * lynx_core_file_p ();
252 #define MY_core_file_failing_command lynx_core_file_failing_command
253 #define MY_core_file_failing_signal lynx_core_file_failing_signal
254 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
255 #define MY_core_file_p lynx_core_file_p
257 #endif /* LYNX_CORE */
259 #include "aout-target.h"