1 /* BFD support for Sparc binaries under LynxOS. 2 Copyright (C) 1990-2016 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 3 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., 51 Franklin Street - Fifth Floor, Boston, 19 MA 02110-1301, USA. */ 20 21 22 /* Do not "beautify" the CONCAT* macro args. Traditional C will not 23 remove whitespace added here, and thus will fail to concatenate 24 the tokens. */ 25 #define MY(OP) CONCAT2 (sparc_aout_lynx_,OP) 26 #define TARGETNAME "a.out-sparc-lynx" 27 28 #include "sysdep.h" 29 #include "bfd.h" 30 #include "libbfd.h" 31 32 #include "aout/sun4.h" 33 #include "libaout.h" /* BFD a.out internal data structures */ 34 35 #include "aout/aout64.h" 36 #include "aout/stab_gnu.h" 37 #include "aout/ar.h" 38 39 void NAME (lynx,set_arch_mach) (bfd *, unsigned long); 40 static void choose_reloc_size (bfd *); 41 static bfd_boolean NAME (aout,sparclynx_write_object_contents) (bfd *); 42 43 /* This is needed to reject a NewsOS file, e.g. in 44 gdb/testsuite/gdb.t10/crossload.exp. <kingdon (at) cygnus.com> 45 I needed to add M_UNKNOWN to recognize a 68000 object, so this will 46 probably no longer reject a NewsOS object. <ian (at) cygnus.com>. */ 47 #define MACHTYPE_OK(mtype) ( (mtype) == M_UNKNOWN \ 48 || (mtype) == M_68010 \ 49 || (mtype) == M_68020 \ 50 || (mtype) == M_SPARC) 51 52 /* The file @code{aoutf1.h} contains the code for BFD's 53 a.out back end. Control over the generated back end is given by these 54 two preprocessor names: 55 @table @code 56 @item ARCH_SIZE 57 This value should be either 32 or 64, depending upon the size of an 58 int in the target format. It changes the sizes of the structs which 59 perform the memory/disk mapping of structures. 60 61 The 64 bit backend may only be used if the host compiler supports 64 62 ints (eg long long with gcc), by defining the name @code{BFD_HOST_64_BIT} in @code{bfd.h}. 63 With this name defined, @emph{all} bfd operations are performed with 64bit 64 arithmetic, not just those to a 64bit target. 65 66 @item TARGETNAME 67 The name put into the target vector. 68 @item 69 @end table */ 70 71 void 72 NAME(lynx,set_arch_mach) (bfd *abfd, unsigned long machtype) 73 { 74 /* Determine the architecture and machine type of the object file. */ 75 enum bfd_architecture arch; 76 unsigned long machine; 77 78 switch (machtype) 79 { 80 case M_UNKNOWN: 81 /* Some Sun3s make magic numbers without cpu types in them, so 82 we'll default to the 68000. */ 83 arch = bfd_arch_m68k; 84 machine = bfd_mach_m68000; 85 break; 86 87 case M_68010: 88 case M_HP200: 89 arch = bfd_arch_m68k; 90 machine = bfd_mach_m68010; 91 break; 92 93 case M_68020: 94 case M_HP300: 95 arch = bfd_arch_m68k; 96 machine = bfd_mach_m68020; 97 break; 98 99 case M_SPARC: 100 arch = bfd_arch_sparc; 101 machine = 0; 102 break; 103 104 case M_386: 105 case M_386_DYNIX: 106 arch = bfd_arch_i386; 107 machine = 0; 108 break; 109 110 case M_HPUX: 111 arch = bfd_arch_m68k; 112 machine = 0; 113 break; 114 115 default: 116 arch = bfd_arch_obscure; 117 machine = 0; 118 break; 119 } 120 bfd_set_arch_mach (abfd, arch, machine); 121 } 122 123 #define SET_ARCH_MACH(ABFD, EXECP) \ 124 NAME(lynx,set_arch_mach) (ABFD, N_MACHTYPE (EXECP)); \ 125 choose_reloc_size(ABFD); 126 127 /* Determine the size of a relocation entry, based on the architecture. */ 128 129 static void 130 choose_reloc_size (bfd *abfd) 131 { 132 switch (bfd_get_arch (abfd)) 133 { 134 case bfd_arch_sparc: 135 obj_reloc_entry_size (abfd) = RELOC_EXT_SIZE; 136 break; 137 default: 138 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; 139 break; 140 } 141 } 142 143 /* Write an object file in LynxOS format. 144 Section contents have already been written. We write the 145 file header, symbols, and relocation. */ 146 147 static bfd_boolean 148 NAME(aout,sparclynx_write_object_contents) (bfd *abfd) 149 { 150 struct external_exec exec_bytes; 151 struct internal_exec *execp = exec_hdr (abfd); 152 153 /* Magic number, maestro, please! */ 154 switch (bfd_get_arch (abfd)) 155 { 156 case bfd_arch_m68k: 157 switch (bfd_get_mach (abfd)) 158 { 159 case bfd_mach_m68010: 160 N_SET_MACHTYPE (execp, M_68010); 161 break; 162 default: 163 case bfd_mach_m68020: 164 N_SET_MACHTYPE (execp, M_68020); 165 break; 166 } 167 break; 168 case bfd_arch_sparc: 169 N_SET_MACHTYPE (execp, M_SPARC); 170 break; 171 case bfd_arch_i386: 172 N_SET_MACHTYPE (execp, M_386); 173 break; 174 default: 175 N_SET_MACHTYPE (execp, M_UNKNOWN); 176 } 177 178 choose_reloc_size (abfd); 179 180 N_SET_FLAGS (execp, aout_backend_info (abfd)->exec_hdr_flags); 181 182 WRITE_HEADERS (abfd, execp); 183 184 return TRUE; 185 } 186 187 #define MY_set_sizes sparclynx_set_sizes 188 static bfd_boolean sparclynx_set_sizes (bfd *); 189 190 static bfd_boolean 191 sparclynx_set_sizes (bfd *abfd) 192 { 193 switch (bfd_get_arch (abfd)) 194 { 195 default: 196 return FALSE; 197 case bfd_arch_sparc: 198 adata (abfd).page_size = 0x2000; 199 adata (abfd).segment_size = 0x2000; 200 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 201 return TRUE; 202 case bfd_arch_m68k: 203 adata (abfd).page_size = 0x2000; 204 adata (abfd).segment_size = 0x20000; 205 adata (abfd).exec_bytes_size = EXEC_BYTES_SIZE; 206 return TRUE; 207 } 208 } 209 210 static const struct aout_backend_data sparclynx_aout_backend = 211 { 212 0, 1, 0, 1, 0, sparclynx_set_sizes, 0, 213 0, /* add_dynamic_symbols */ 214 0, /* add_one_symbol */ 215 0, /* link_dynamic_object */ 216 0, /* write_dynamic_symbol */ 217 0, /* check_dynamic_reloc */ 218 0 /* finish_dynamic_link */ 219 }; 220 221 223 #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 227 228 #define MY_write_object_contents NAME(aout,sparclynx_write_object_contents) 229 #define MY_backend_data &sparclynx_aout_backend 230 231 #define TARGET_IS_BIG_ENDIAN_P 232 233 #ifdef LYNX_CORE 234 235 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 (); 239 240 #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 244 245 #endif /* LYNX_CORE */ 246 247 #include "aout-target.h" 248
