1 /* BFD support for Sparc binaries under LynxOS.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000
3 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 /* This is needed to reject a NewsOS file, e.g. in
47 gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com>
48 I needed to add M_UNKNOWN to recognize a 68000 object, so this will
49 probably no longer reject a NewsOS object. <ian@cygnus.com>. */
50 #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \
51 || (mtype) == M_68010 \
52 || (mtype) == M_68020 \
53 || (mtype) == M_SPARC)
56 The file @code{aoutf1.h} contains the code for BFD's
57 a.out back end. Control over the generated back end is given by these
58 two preprocessor names:
61 This value should be either 32 or 64, depending upon the size of an
62 int in the target format. It changes the sizes of the structs which
63 perform the memory/disk mapping of structures.
65 The 64 bit backend may only be used if the host compiler supports 64
66 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}.
67 With this name defined, @emph{all} bfd operations are performed with 64bit
68 arithmetic, not just those to a 64bit target.
71 The name put into the target vector.
81 NAME(lynx,set_arch_mach) (abfd, machtype)
85 /* Determine the architecture and machine type of the object file. */
86 enum bfd_architecture arch;
92 /* Some Sun3s make magic numbers without cpu types in them, so
93 we'll default to the 68000. */
95 machine = bfd_mach_m68000;
100 arch = bfd_arch_m68k;
101 machine = bfd_mach_m68010;
106 arch = bfd_arch_m68k;
107 machine = bfd_mach_m68020;
111 arch = bfd_arch_sparc;
117 arch = bfd_arch_i386;
122 arch = bfd_arch_a29k;
127 arch = bfd_arch_m68k;
132 arch = bfd_arch_obscure;
136 bfd_set_arch_mach (abfd, arch, machine);
139 #define SET_ARCH_MACH(ABFD, EXEC) \
140 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
141 choose_reloc_size(ABFD);
143 /* Determine the size of a relocation entry, based on the architecture */
145 choose_reloc_size (abfd)
148 switch (bfd_get_arch (abfd))
152 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
155 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
160 /* Write an object file in LynxOS format.
161 Section contents have already been written. We write the
162 file header, symbols, and relocation. */
165 NAME(aout,sparclynx_write_object_contents) (abfd)
168 struct external_exec exec_bytes;
169 struct internal_exec *execp = exec_hdr (abfd);
171 /* Magic number, maestro, please! */
172 switch (bfd_get_arch (abfd))
175 switch (bfd_get_mach (abfd))
177 case bfd_mach_m68010:
178 N_SET_MACHTYPE (*execp, M_68010);
181 case bfd_mach_m68020:
182 N_SET_MACHTYPE (*execp, M_68020);
187 N_SET_MACHTYPE (*execp, M_SPARC);
190 N_SET_MACHTYPE (*execp, M_386);
193 N_SET_MACHTYPE (*execp, M_29K);
196 N_SET_MACHTYPE (*execp, M_UNKNOWN);
199 choose_reloc_size (abfd);
201 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
203 WRITE_HEADERS (abfd, execp);
208 #define MY_set_sizes sparclynx_set_sizes
210 sparclynx_set_sizes (abfd)
213 switch (bfd_get_arch (abfd))
218 adata (abfd).page_size = 0x2000;
219 adata (abfd).segment_size = 0x2000;
220 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
223 adata (abfd).page_size = 0x2000;
224 adata (abfd).segment_size = 0x20000;
225 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
230 static CONST struct aout_backend_data sparclynx_aout_backend =
232 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
233 0, /* add_dynamic_symbols */
234 0, /* add_one_symbol */
235 0, /* link_dynamic_object */
236 0, /* write_dynamic_symbol */
237 0, /* check_dynamic_reloc */
238 0 /* finish_dynamic_link */
242 #define MY_bfd_debug_info_start bfd_void
243 #define MY_bfd_debug_info_end bfd_void
244 #define MY_bfd_debug_info_accumulate \
245 (void (*) PARAMS ((bfd *, struct sec *))) bfd_void
247 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
248 #define MY_backend_data &sparclynx_aout_backend
250 #define TARGET_IS_BIG_ENDIAN_P
254 char *lynx_core_file_failing_command ();
255 int lynx_core_file_failing_signal ();
256 boolean lynx_core_file_matches_executable_p ();
257 const bfd_target *lynx_core_file_p ();
259 #define MY_core_file_failing_command lynx_core_file_failing_command
260 #define MY_core_file_failing_signal lynx_core_file_failing_signal
261 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
262 #define MY_core_file_p lynx_core_file_p
264 #endif /* LYNX_CORE */
266 #include "aout-target.h"