merge from gcc
[gdb/gnu.git] / bfd / sparclynx.c
blobc8a6aa066347f4005b0c7cd10f679ef6f26ff433
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, 2012 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) (bfd *, unsigned long);
41 static void choose_reloc_size (bfd *);
42 static bfd_boolean NAME (aout,sparclynx_write_object_contents) (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) (bfd *abfd, unsigned long machtype)
75 /* Determine the architecture and machine type of the object file. */
76 enum bfd_architecture arch;
77 unsigned long machine;
79 switch (machtype)
81 case M_UNKNOWN:
82 /* Some Sun3s make magic numbers without cpu types in them, so
83 we'll default to the 68000. */
84 arch = bfd_arch_m68k;
85 machine = bfd_mach_m68000;
86 break;
88 case M_68010:
89 case M_HP200:
90 arch = bfd_arch_m68k;
91 machine = bfd_mach_m68010;
92 break;
94 case M_68020:
95 case M_HP300:
96 arch = bfd_arch_m68k;
97 machine = bfd_mach_m68020;
98 break;
100 case M_SPARC:
101 arch = bfd_arch_sparc;
102 machine = 0;
103 break;
105 case M_386:
106 case M_386_DYNIX:
107 arch = bfd_arch_i386;
108 machine = 0;
109 break;
111 case M_HPUX:
112 arch = bfd_arch_m68k;
113 machine = 0;
114 break;
116 default:
117 arch = bfd_arch_obscure;
118 machine = 0;
119 break;
121 bfd_set_arch_mach (abfd, arch, machine);
124 #define SET_ARCH_MACH(ABFD, EXEC) \
125 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \
126 choose_reloc_size(ABFD);
128 /* Determine the size of a relocation entry, based on the architecture. */
130 static void
131 choose_reloc_size (bfd *abfd)
133 switch (bfd_get_arch (abfd))
135 case bfd_arch_sparc:
136 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE;
137 break;
138 default:
139 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
140 break;
144 /* Write an object file in LynxOS format.
145 Section contents have already been written. We write the
146 file header, symbols, and relocation. */
148 static bfd_boolean
149 NAME(aout,sparclynx_write_object_contents) (bfd *abfd)
151 struct external_exec exec_bytes;
152 struct internal_exec *execp = exec_hdr (abfd);
154 /* Magic number, maestro, please! */
155 switch (bfd_get_arch (abfd))
157 case bfd_arch_m68k:
158 switch (bfd_get_mach (abfd))
160 case bfd_mach_m68010:
161 N_SET_MACHTYPE (*execp, M_68010);
162 break;
163 default:
164 case bfd_mach_m68020:
165 N_SET_MACHTYPE (*execp, M_68020);
166 break;
168 break;
169 case bfd_arch_sparc:
170 N_SET_MACHTYPE (*execp, M_SPARC);
171 break;
172 case bfd_arch_i386:
173 N_SET_MACHTYPE (*execp, M_386);
174 break;
175 default:
176 N_SET_MACHTYPE (*execp, M_UNKNOWN);
179 choose_reloc_size (abfd);
181 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags);
183 WRITE_HEADERS (abfd, execp);
185 return TRUE;
188 #define MY_set_sizes sparclynx_set_sizes
189 static bfd_boolean sparclynx_set_sizes (bfd *);
191 static bfd_boolean
192 sparclynx_set_sizes (bfd *abfd)
194 switch (bfd_get_arch (abfd))
196 default:
197 return FALSE;
198 case bfd_arch_sparc:
199 adata (abfd).page_size = 0x2000;
200 adata (abfd).segment_size = 0x2000;
201 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
202 return TRUE;
203 case bfd_arch_m68k:
204 adata (abfd).page_size = 0x2000;
205 adata (abfd).segment_size = 0x20000;
206 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE;
207 return TRUE;
211 static const struct aout_backend_data sparclynx_aout_backend =
213 0, 1, 0, 1, 0, sparclynx_set_sizes, 0,
214 0, /* add_dynamic_symbols */
215 0, /* add_one_symbol */
216 0, /* link_dynamic_object */
217 0, /* write_dynamic_symbol */
218 0, /* check_dynamic_reloc */
219 0 /* finish_dynamic_link */
223 #define MY_bfd_debug_info_start bfd_void
224 #define MY_bfd_debug_info_end bfd_void
225 #define MY_bfd_debug_info_accumulate \
226 (void (*) (bfd *, struct bfd_section *)) bfd_void
228 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents)
229 #define MY_backend_data &sparclynx_aout_backend
231 #define TARGET_IS_BIG_ENDIAN_P
233 #ifdef LYNX_CORE
235 char * lynx_core_file_failing_command ();
236 int lynx_core_file_failing_signal ();
237 bfd_boolean lynx_core_file_matches_executable_p ();
238 const bfd_target * lynx_core_file_p ();
240 #define MY_core_file_failing_command lynx_core_file_failing_command
241 #define MY_core_file_failing_signal lynx_core_file_failing_signal
242 #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p
243 #define MY_core_file_p lynx_core_file_p
245 #endif /* LYNX_CORE */
247 #include "aout-target.h"