1 /* BFD support for Sparc binaries under LynxOS. 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1997, 1998, 2000 3 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 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. 11 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. 16 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. */ 20 21 #if 0 22 #define BYTES_IN_WORD 4 23 #define N_SHARED_LIB(x) 0 24 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 29 30 #endif 31 32 #define MY(OP) CAT(sparclynx_aout_,OP) 33 #define TARGETNAME "a.out-sparc-lynx" 34 35 #include "bfd.h" 36 #include "sysdep.h" 37 #include "libbfd.h" 38 39 #include "aout/sun4.h" 40 #include "libaout.h" /* BFD a.out internal data structures */ 41 42 #include "aout/aout64.h" 43 #include "aout/stab_gnu.h" 44 #include "aout/ar.h" 45 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) 54 55 /* 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: 59 @table @code 60 @item ARCH_SIZE 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. 64 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. 69 70 @item TARGETNAME 71 The name put into the target vector. 72 @item 73 @end table 74 75 */ 76 77 /*SUPPRESS558*/ 78 /*SUPPRESS529*/ 79 80 void 81 NAME(lynx,set_arch_mach) (abfd, machtype) 82 bfd *abfd; 83 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 91 case M_UNKNOWN: 92 /* Some Sun3s make magic numbers without cpu types in them, so 93 we'll default to the 68000. */ 94 arch = bfd_arch_m68k; 95 machine = bfd_mach_m68000; 96 break; 97 98 case M_68010: 99 case M_HP200: 100 arch = bfd_arch_m68k; 101 machine = bfd_mach_m68010; 102 break; 103 104 case M_68020: 105 case M_HP300: 106 arch = bfd_arch_m68k; 107 machine = bfd_mach_m68020; 108 break; 109 110 case M_SPARC: 111 arch = bfd_arch_sparc; 112 machine = 0; 113 break; 114 115 case M_386: 116 case M_386_DYNIX: 117 arch = bfd_arch_i386; 118 machine = 0; 119 break; 120 121 case M_29K: 122 arch = bfd_arch_a29k; 123 machine = 0; 124 break; 125 126 case M_HPUX: 127 arch = bfd_arch_m68k; 128 machine = 0; 129 break; 130 131 default: 132 arch = bfd_arch_obscure; 133 machine = 0; 134 break; 135 } 136 bfd_set_arch_mach (abfd, arch, machine); 137 } 138 139 #define SET_ARCH_MACH(ABFD, EXEC) \ 140 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXEC)); \ 141 choose_reloc_size(ABFD); 142 143 /* Determine the size of a relocation entry, based on the architecture */ 144 static void 145 choose_reloc_size (abfd) 146 bfd *abfd; 147 { 148 switch (bfd_get_arch (abfd)) 149 { 150 case bfd_arch_sparc: 151 case bfd_arch_a29k: 152 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; 153 break; 154 default: 155 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; 156 break; 157 } 158 } 159 160 /* Write an object file in LynxOS format. 161 Section contents have already been written. We write the 162 file header, symbols, and relocation. */ 163 164 static boolean 165 NAME(aout,sparclynx_write_object_contents) (abfd) 166 bfd *abfd; 167 { 168 struct external_exec exec_bytes; 169 struct internal_exec *execp = exec_hdr (abfd); 170 171 /* Magic number, maestro, please! */ 172 switch (bfd_get_arch (abfd)) 173 { 174 case bfd_arch_m68k: 175 switch (bfd_get_mach (abfd)) 176 { 177 case bfd_mach_m68010: 178 N_SET_MACHTYPE (*execp, M_68010); 179 break; 180 default: 181 case bfd_mach_m68020: 182 N_SET_MACHTYPE (*execp, M_68020); 183 break; 184 } 185 break; 186 case bfd_arch_sparc: 187 N_SET_MACHTYPE (*execp, M_SPARC); 188 break; 189 case bfd_arch_i386: 190 N_SET_MACHTYPE (*execp, M_386); 191 break; 192 case bfd_arch_a29k: 193 N_SET_MACHTYPE (*execp, M_29K); 194 break; 195 default: 196 N_SET_MACHTYPE (*execp, M_UNKNOWN); 197 } 198 199 choose_reloc_size (abfd); 200 201 N_SET_FLAGS (*execp, aout_backend_info (abfd)->exec_hdr_flags); 202 203 WRITE_HEADERS (abfd, execp); 204 205 return true; 206 } 207 208 #define MY_set_sizes sparclynx_set_sizes 209 static boolean 210 sparclynx_set_sizes (abfd) 211 bfd *abfd; 212 { 213 switch (bfd_get_arch (abfd)) 214 { 215 default: 216 return false; 217 case bfd_arch_sparc: 218 adata (abfd).page_size = 0x2000; 219 adata (abfd).segment_size = 0x2000; 220 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 221 return true; 222 case bfd_arch_m68k: 223 adata (abfd).page_size = 0x2000; 224 adata (abfd).segment_size = 0x20000; 225 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 226 return true; 227 } 228 } 229 230 static CONST struct aout_backend_data sparclynx_aout_backend = 231 { 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 */ 239 }; 240 241 242 #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 246 247 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents) 248 #define MY_backend_data &sparclynx_aout_backend 249 250 #define TARGET_IS_BIG_ENDIAN_P 251 252 #ifdef LYNX_CORE 253 254 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 (); 258 259 #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 263 264 #endif /* LYNX_CORE */ 265 266 #include "aout-target.h" 267