1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000,
3 2001, 2002, 2003, 2005, 2007 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 3 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,
20 MA 02110-1301, USA. */
23 /* Do not "beautify" the CONCAT* macro args. Traditional C will not
24 remove whitespace added here, and thus will fail to concatenate
26 #define MY(OP) CONCAT2 (sparclynx_aout_,OP)
27 #define TARGETNAME "a.out-sparc-lynx"
33 #include "aout/sun4.h"
34 #include "libaout.h" /* BFD a.out internal data structures */
36 #include "aout/aout64.h"
37 #include "aout/stab_gnu.h"
40 void NAME (lynx,set_arch_mach) PARAMS ((bfd *, unsigned long));
41 static void choose_reloc_size PARAMS ((bfd *));
42 static bfd_boolean NAME (aout,sparclynx_write_object_contents) PARAMS ((bfd *));
44 /* This is needed to reject a NewsOS file, e.g. in
45 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
46 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
47 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
48 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
49 || (mtype) == M_68010 \
50 || (mtype) == M_68020 \
51 || (mtype) == M_SPARC)
53 /* The file @code{aoutf1.h} contains the code for BFD's
54 a.out back end. Control over the generated back end is given by these
55 two preprocessor names:
58 This value should be either 32 or 64, depending upon the size of an
59 int in the target format. It changes the sizes of the structs which
60 perform the memory/disk mapping of structures.
62 The 64 bit backend may only be used if the host compiler supports 64
63 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
64 With this name defined, @emph{all} bfd operations are performed with 64bit
65 arithmetic, not just those to a 64bit target.
68 The name put into the target vector.
73 NAME(lynx,set_arch_mach) (abfd, machtype)
75 unsigned long machtype;
77 /* Determine the architecture and machine type of the object file. */
78 enum bfd_architecture arch;
79 unsigned long machine;
84 /* Some Sun3s make magic numbers without cpu types in them, so
85 we'll default to the 68000. */
87 machine = bfd_mach_m68000;
93 machine = bfd_mach_m68010;
99 machine = bfd_mach_m68020;
103 arch = bfd_arch_sparc;
109 arch = bfd_arch_i386;
114 arch = bfd_arch_m68k;
119 arch = bfd_arch_obscure;
123 bfd_set_arch_mach (abfd, arch, machine);
126 #define SET_ARCH_MACH(ABFD, EXEC) \
127 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
128 choose_reloc_size(ABFD);
130 /* Determine the size of a relocation entry, based on the architecture. */
133 choose_reloc_size (abfd)
136 switch (bfd_get_arch (abfd))
139 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
142 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
147 /* Write an object file in LynxOS format.
148 Section contents have already been written. We write the
149 file header, symbols, and relocation. */
152 NAME(aout,sparclynx_write_object_contents) (abfd)
155 struct external_exec exec_bytes;
156 struct internal_exec *execp = exec_hdr (abfd);
158 /* Magic number, maestro, please! */
159 switch (bfd_get_arch (abfd))
162 switch (bfd_get_mach (abfd))
164 case bfd_mach_m68010:
165 N_SET_MACHTYPE (*execp, M_68010);
168 case bfd_mach_m68020:
169 N_SET_MACHTYPE (*execp, M_68020);
174 N_SET_MACHTYPE (*execp, M_SPARC);
177 N_SET_MACHTYPE (*execp, M_386);
180 N_SET_MACHTYPE (*execp, M_UNKNOWN);
183 choose_reloc_size (abfd);
185 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
187 WRITE_HEADERS (abfd, execp);
192 #define MY_set_sizes sparclynx_set_sizes
193 static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
196 sparclynx_set_sizes (abfd)
199 switch (bfd_get_arch (abfd))
204 adata (abfd).page_size = 0x2000;
205 adata (abfd).segment_size = 0x2000;
206 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
209 adata (abfd).page_size = 0x2000;
210 adata (abfd).segment_size = 0x20000;
211 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
216 static const struct aout_backend_data sparclynx_aout_backend =
218 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
219 0, /* add_dynamic_symbols */
220 0, /* add_one_symbol */
221 0, /* link_dynamic_object */
222 0, /* write_dynamic_symbol */
223 0, /* check_dynamic_reloc */
224 0 /* finish_dynamic_link */
228 #define MY_bfd_debug_info_start bfd_void
229 #define MY_bfd_debug_info_end bfd_void
230 #define MY_bfd_debug_info_accumulate \
231 (void (*) PARAMS ((bfd *, struct bfd_section *))) bfd_void
233 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
234 #define MY_backend_data &sparclynx_aout_backend
236 #define TARGET_IS_BIG_ENDIAN_P
240 char * lynx_core_file_failing_command ();
241 int lynx_core_file_failing_signal ();
242 bfd_boolean lynx_core_file_matches_executable_p ();
243 const bfd_target * lynx_core_file_p ();
245 #define MY_core_file_failing_command lynx_core_file_failing_command
246 #define MY_core_file_failing_signal lynx_core_file_failing_signal
247 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
248 #define MY_core_file_p lynx_core_file_p
250 #endif /* LYNX_CORE */
252 #include "aout-target.h"