bfd/
[binutils.git] / bfd / sparclynx.c
blob93f9a875cabd260c40e84f066f6eb72d1787efdd
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
25 the tokens. */
26 #define MY(OP) CONCAT2 (sparclynx_aout_,OP)
27 #define TARGETNAME "a.out-sparc-lynx"
29 #include "sysdep.h"
30 #include "bfd.h"
31 #include "libbfd.h"
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"
38 #include "aout/ar.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:
56 @table @code
57 @item ARCH_SIZE
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.
67 @item TARGETNAME
68 The name put into the target vector.
69 @item
70 @end table */
72 void
73 NAME(lynx,set_arch_mach) (abfd, machtype)
74 bfd *abfd;
75 unsigned long machtype;
77 /* Determine the architecture and machine type of the object file. */
78 enum bfd_architecture arch;
79 unsigned long machine;
81 switch (machtype)
83 case M_UNKNOWN:
84 /* Some Sun3s make magic numbers without cpu types in them, so
85 we'll default to the 68000. */
86 arch = bfd_arch_m68k;
87 machine = bfd_mach_m68000;
88 break;
90 case M_68010:
91 case M_HP200:
92 arch = bfd_arch_m68k;
93 machine = bfd_mach_m68010;
94 break;
96 case M_68020:
97 case M_HP300:
98 arch = bfd_arch_m68k;
99 machine = bfd_mach_m68020;
100 break;
102 case M_SPARC:
103 arch = bfd_arch_sparc;
104 machine = 0;
105 break;
107 case M_386:
108 case M_386_DYNIX:
109 arch = bfd_arch_i386;
110 machine = 0;
111 break;
113 case M_HPUX:
114 arch = bfd_arch_m68k;
115 machine = 0;
116 break;
118 default:
119 arch = bfd_arch_obscure;
120 machine = 0;
121 break;
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. */
132 static void
133 choose_reloc_size (abfd)
134 bfd *abfd;
136 switch (bfd_get_arch (abfd))
138 case bfd_arch_sparc:
139 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
140 break;
141 default:
142 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
143 break;
147 /* Write an object file in LynxOS format.
148 Section contents have already been written. We write the
149 file header, symbols, and relocation. */
151 static bfd_boolean
152 NAME(aout,sparclynx_write_object_contents) (abfd)
153 bfd *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))
161 case bfd_arch_m68k:
162 switch (bfd_get_mach (abfd))
164 case bfd_mach_m68010:
165 N_SET_MACHTYPE (*execp, M_68010);
166 break;
167 default:
168 case bfd_mach_m68020:
169 N_SET_MACHTYPE (*execp, M_68020);
170 break;
172 break;
173 case bfd_arch_sparc:
174 N_SET_MACHTYPE (*execp, M_SPARC);
175 break;
176 case bfd_arch_i386:
177 N_SET_MACHTYPE (*execp, M_386);
178 break;
179 default:
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);
189 return TRUE;
192 #define MY_set_sizes sparclynx_set_sizes
193 static bfd_boolean sparclynx_set_sizes PARAMS ((bfd *));
195 static bfd_boolean
196 sparclynx_set_sizes (abfd)
197 bfd *abfd;
199 switch (bfd_get_arch (abfd))
201 default:
202 return FALSE;
203 case bfd_arch_sparc:
204 adata (abfd).page_size = 0x2000;
205 adata (abfd).segment_size = 0x2000;
206 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
207 return TRUE;
208 case bfd_arch_m68k:
209 adata (abfd).page_size = 0x2000;
210 adata (abfd).segment_size = 0x20000;
211 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
212 return TRUE;
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
238 #ifdef LYNX_CORE
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"