| 1 | /* BFD support for Sparc binaries under LynxOS. |
| 2 | Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of BFD, the Binary File Descriptor library. |
| 5 | |
| 6 | This program is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2 of the License, or |
| 9 | (at your option) any later version. |
| 10 | |
| 11 | This program is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with this program; if not, write to the Free Software |
| 18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 19 | |
| 20 | #define ARCH 32 |
| 21 | |
| 22 | #if 0 |
| 23 | #define BYTES_IN_WORD 4 |
| 24 | #define N_SHARED_LIB(x) 0 |
| 25 | |
| 26 | #define TEXT_START_ADDR 0 |
| 27 | #define PAGE_SIZE 4096 |
| 28 | #define SEGMENT_SIZE PAGE_SIZE |
| 29 | #define DEFAULT_ARCH bfd_arch_sparc |
| 30 | |
| 31 | #endif |
| 32 | |
| 33 | #define MY(OP) CAT(sparclynx_aout_,OP) |
| 34 | #define TARGETNAME "a.out-sparc-lynx" |
| 35 | |
| 36 | #include "bfd.h" |
| 37 | #include "sysdep.h" |
| 38 | #include "libbfd.h" |
| 39 | |
| 40 | #include "aout/sun4.h" |
| 41 | #include "libaout.h" /* BFD a.out internal data structures */ |
| 42 | |
| 43 | #include "aout/aout64.h" |
| 44 | #include "aout/stab_gnu.h" |
| 45 | #include "aout/ar.h" |
| 46 | |
| 47 | /* This is needed to reject a NewsOS file, e.g. in |
| 48 | gdb/testsuite/gdb.t10/crossload.exp. <kingdon@cygnus.com> |
| 49 | I needed to add M_UNKNOWN to recognize a 68000 object, so this will |
| 50 | probably no longer reject a NewsOS object. <ian@cygnus.com>. */ |
| 51 | #define MACHTYPE_OK(mtype) ((mtype) == M_UNKNOWN \ |
| 52 | || (mtype) == M_68010 \ |
| 53 | || (mtype) == M_68020 \ |
| 54 | || (mtype) == M_SPARC) |
| 55 | |
| 56 | /* |
| 57 | The file @code{aoutf1.h} contains the code for BFD's |
| 58 | a.out back end. Control over the generated back end is given by these |
| 59 | two preprocessor names: |
| 60 | @table @code |
| 61 | @item ARCH_SIZE |
| 62 | This value should be either 32 or 64, depending upon the size of an |
| 63 | int in the target format. It changes the sizes of the structs which |
| 64 | perform the memory/disk mapping of structures. |
| 65 | |
| 66 | The 64 bit backend may only be used if the host compiler supports 64 |
| 67 | ints (eg long long with gcc), by defining the name @code{HOST_64_BIT} in @code{bfd.h}. |
| 68 | With this name defined, @emph{all} bfd operations are performed with 64bit |
| 69 | arithmetic, not just those to a 64bit target. |
| 70 | |
| 71 | @item TARGETNAME |
| 72 | The name put into the target vector. |
| 73 | @item |
| 74 | @end table |
| 75 | |
| 76 | */ |
| 77 | |
| 78 | /*SUPPRESS558*/ |
| 79 | /*SUPPRESS529*/ |
| 80 | |
| 81 | void |
| 82 | DEFUN(NAME(lynxos,set_arch_mach), (abfd, machtype), |
| 83 | bfd *abfd AND int machtype) |
| 84 | { |
| 85 | /* Determine the architecture and machine type of the object file. */ |
| 86 | enum bfd_architecture arch; |
| 87 | long machine; |
| 88 | switch (machtype) { |
| 89 | |
| 90 | case M_UNKNOWN: |
| 91 | /* Some Sun3s make magic numbers without cpu types in them, so |
| 92 | we'll default to the 68000. */ |
| 93 | arch = bfd_arch_m68k; |
| 94 | machine = 68000; |
| 95 | break; |
| 96 | |
| 97 | case M_68010: |
| 98 | case M_HP200: |
| 99 | arch = bfd_arch_m68k; |
| 100 | machine = 68010; |
| 101 | break; |
| 102 | |
| 103 | case M_68020: |
| 104 | case M_HP300: |
| 105 | arch = bfd_arch_m68k; |
| 106 | machine = 68020; |
| 107 | break; |
| 108 | |
| 109 | case M_SPARC: |
| 110 | arch = bfd_arch_sparc; |
| 111 | machine = 0; |
| 112 | break; |
| 113 | |
| 114 | case M_386: |
| 115 | case M_386_DYNIX: |
| 116 | arch = bfd_arch_i386; |
| 117 | machine = 0; |
| 118 | break; |
| 119 | |
| 120 | case M_29K: |
| 121 | arch = bfd_arch_a29k; |
| 122 | machine = 0; |
| 123 | break; |
| 124 | |
| 125 | case M_HPUX: |
| 126 | arch = bfd_arch_m68k; |
| 127 | machine = 0; |
| 128 | break; |
| 129 | |
| 130 | default: |
| 131 | arch = bfd_arch_obscure; |
| 132 | machine = 0; |
| 133 | break; |
| 134 | } |
| 135 | bfd_set_arch_mach(abfd, arch, machine); |
| 136 | } |
| 137 | |
| 138 | #define SET_ARCH_MACH(ABFD, EXEC) \ |
| 139 | NAME(lynxos,set_arch_mach)(ABFD, N_MACHTYPE (EXEC)); \ |
| 140 | choose_reloc_size(ABFD); |
| 141 | |
| 142 | /* Determine the size of a relocation entry, based on the architecture */ |
| 143 | static void |
| 144 | DEFUN(choose_reloc_size,(abfd), |
| 145 | bfd *abfd) |
| 146 | { |
| 147 | switch (bfd_get_arch(abfd)) { |
| 148 | case bfd_arch_sparc: |
| 149 | case bfd_arch_a29k: |
| 150 | obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; |
| 151 | break; |
| 152 | default: |
| 153 | obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; |
| 154 | break; |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | /* Write an object file in Lynxos format. |
| 159 | Section contents have already been written. We write the |
| 160 | file header, symbols, and relocation. */ |
| 161 | |
| 162 | static boolean |
| 163 | DEFUN(NAME(aout,sparclynx_write_object_contents), |
| 164 | (abfd), |
| 165 | bfd *abfd) |
| 166 | { |
| 167 | struct external_exec exec_bytes; |
| 168 | struct internal_exec *execp = exec_hdr (abfd); |
| 169 | |
| 170 | /* Magic number, maestro, please! */ |
| 171 | switch (bfd_get_arch(abfd)) { |
| 172 | case bfd_arch_m68k: |
| 173 | switch (bfd_get_mach(abfd)) { |
| 174 | case 68010: |
| 175 | N_SET_MACHTYPE(*execp, M_68010); |
| 176 | break; |
| 177 | default: |
| 178 | case 68020: |
| 179 | N_SET_MACHTYPE(*execp, M_68020); |
| 180 | break; |
| 181 | } |
| 182 | break; |
| 183 | case bfd_arch_sparc: |
| 184 | N_SET_MACHTYPE(*execp, M_SPARC); |
| 185 | break; |
| 186 | case bfd_arch_i386: |
| 187 | N_SET_MACHTYPE(*execp, M_386); |
| 188 | break; |
| 189 | case bfd_arch_a29k: |
| 190 | N_SET_MACHTYPE(*execp, M_29K); |
| 191 | break; |
| 192 | default: |
| 193 | N_SET_MACHTYPE(*execp, M_UNKNOWN); |
| 194 | } |
| 195 | |
| 196 | choose_reloc_size(abfd); |
| 197 | |
| 198 | #if 0 |
| 199 | /* Some tools want this to be 0, some tools want this to be one. |
| 200 | Today, it seems that 0 is the most important setting (PR1927) */ |
| 201 | N_SET_FLAGS (*execp, 0x0); |
| 202 | #else |
| 203 | |
| 204 | /* Fri Jun 11 14:23:31 PDT 1993 |
| 205 | FIXME |
| 206 | Today's optimal setting is 1. This is a pain, since it |
| 207 | reopens 1927. This should be readdressed by creating a new |
| 208 | target for each each supported, giving perhaps sun3/m68k |
| 209 | and sun4/sparc a.out formats. |
| 210 | */ |
| 211 | N_SET_FLAGS (*execp, 1); |
| 212 | #endif |
| 213 | |
| 214 | WRITE_HEADERS(abfd, execp); |
| 215 | |
| 216 | return true; |
| 217 | } |
| 218 | |
| 219 | #define MY_set_sizes sparclynx_set_sizes |
| 220 | static boolean |
| 221 | DEFUN (sparclynx_set_sizes, (abfd), |
| 222 | bfd *abfd) |
| 223 | { |
| 224 | switch (bfd_get_arch (abfd)) |
| 225 | { |
| 226 | default: |
| 227 | return false; |
| 228 | case bfd_arch_sparc: |
| 229 | adata(abfd).page_size = 0x2000; |
| 230 | adata(abfd).segment_size = 0x2000; |
| 231 | adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE; |
| 232 | return true; |
| 233 | case bfd_arch_m68k: |
| 234 | adata(abfd).page_size = 0x2000; |
| 235 | adata(abfd).segment_size = 0x20000; |
| 236 | adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE; |
| 237 | return true; |
| 238 | } |
| 239 | } |
| 240 | |
| 241 | static CONST struct aout_backend_data sparclynx_aout_backend = { |
| 242 | 0, 1, 0, sparclynx_set_sizes, 0, |
| 243 | }; |
| 244 | \f |
| 245 | |
| 246 | #define MY_bfd_debug_info_start bfd_void |
| 247 | #define MY_bfd_debug_info_end bfd_void |
| 248 | #define MY_bfd_debug_info_accumulate \ |
| 249 | (void (*) PARAMS ((bfd *, struct sec *))) bfd_void |
| 250 | |
| 251 | #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents) |
| 252 | #define MY_backend_data &sparclynx_aout_backend |
| 253 | |
| 254 | #define TARGET_IS_BIG_ENDIAN_P |
| 255 | |
| 256 | #ifdef HOST_LYNX |
| 257 | |
| 258 | char *lynx_core_file_failing_command(); |
| 259 | int lynx_core_file_failing_signal(); |
| 260 | boolean lynx_core_file_matches_executable_p(); |
| 261 | bfd_target *lynx_core_file_p(); |
| 262 | |
| 263 | #define MY_core_file_failing_command lynx_core_file_failing_command |
| 264 | #define MY_core_file_failing_signal lynx_core_file_failing_signal |
| 265 | #define MY_core_file_matches_executable_p lynx_core_file_matches_executable_p |
| 266 | #define MY_core_file_p lynx_core_file_p |
| 267 | |
| 268 | #endif /* HOST_LYNX */ |
| 269 | |
| 270 | #include "aout-target.h" |