| 1 | #!/usr/local/bin/bash |
| 2 | |
| 3 | # Architecture commands for GDB, the GNU debugger. |
| 4 | # Copyright 1998-1999 Free Software Foundation, Inc. |
| 5 | # |
| 6 | # This file is part of GDB. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program; if not, write to the Free Software |
| 20 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 21 | |
| 22 | read="class level macro returntype function formal actual attrib default init init_p fmt print print_p description" |
| 23 | |
| 24 | # dump out/verify the doco |
| 25 | for field in ${read} |
| 26 | do |
| 27 | case ${field} in |
| 28 | |
| 29 | class ) : ;; |
| 30 | # # -> line disable |
| 31 | # f -> function |
| 32 | # hiding a function |
| 33 | # v -> variable |
| 34 | # hiding a variable |
| 35 | # i -> set from info |
| 36 | # hiding something from the ``struct info'' object |
| 37 | |
| 38 | level ) : ;; |
| 39 | |
| 40 | # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= |
| 41 | # LEVEL is a predicate on checking that a given method is |
| 42 | # initialized (using INIT_P). |
| 43 | |
| 44 | macro ) : ;; |
| 45 | |
| 46 | # The name of the MACRO that this method is to be accessed by. |
| 47 | |
| 48 | returntype ) : ;; |
| 49 | |
| 50 | # For functions, the return type; for variables, the data type |
| 51 | |
| 52 | function ) : ;; |
| 53 | |
| 54 | # For functions, the member function name; for variables, the |
| 55 | # variable name. Member function names are always prefixed with |
| 56 | # ``gdbarch_'' for name-space purity. |
| 57 | |
| 58 | formal ) : ;; |
| 59 | |
| 60 | # The formal argument list. It is assumed that the formal |
| 61 | # argument list includes the actual name of each list element. |
| 62 | # A function with no arguments shall have ``void'' as the formal |
| 63 | # argument list. |
| 64 | |
| 65 | actual ) : ;; |
| 66 | |
| 67 | # The list of actual arguments. The arguments specified shall |
| 68 | # match the FORMAL list given above. Functions with out |
| 69 | # arguments leave this blank. |
| 70 | |
| 71 | attrib ) : ;; |
| 72 | |
| 73 | # Any GCC attributes that should be attached to the function |
| 74 | # declaration. At present this field is unused. |
| 75 | |
| 76 | default ) : ;; |
| 77 | |
| 78 | # To help with the GDB startup a default static gdbarch object |
| 79 | # is created. DEFAULT is the value to insert into that |
| 80 | # array. It defaults to ZERO. |
| 81 | |
| 82 | init ) : ;; |
| 83 | |
| 84 | # Any initial value to assign to the member after it is been |
| 85 | # MALLOCed. Defaults to zero. |
| 86 | |
| 87 | init_p ) : ;; |
| 88 | |
| 89 | # A predicate equation that tests to see if the code creating |
| 90 | # the new architecture has correctly updated this |
| 91 | # MEMBER. Default is to check that the value is no longer equal |
| 92 | # to INIT. |
| 93 | |
| 94 | fmt ) : ;; |
| 95 | |
| 96 | # printf style format string that can be used to print out the |
| 97 | # MEMBER. The default is to assume "%ld" is safe. Sometimes |
| 98 | # "%s" is useful. For functions, this is ignored and the |
| 99 | # function address is printed. |
| 100 | |
| 101 | print ) : ;; |
| 102 | |
| 103 | # An optional equation that converts the MEMBER into a value |
| 104 | # suitable for that FMT. By default it is assumed that the |
| 105 | # member's MACRO cast to long is safe. |
| 106 | |
| 107 | print_p ) : ;; |
| 108 | |
| 109 | # An optional indicator for any predicte to wrap around the |
| 110 | # print member code. |
| 111 | # # -> Wrap print up in ``#ifdef MACRO'' |
| 112 | # exp -> Wrap print up in ``if (${print_p}) ... |
| 113 | |
| 114 | description ) : ;; |
| 115 | |
| 116 | # Currently unused. |
| 117 | |
| 118 | *) exit 1;; |
| 119 | esac |
| 120 | done |
| 121 | |
| 122 | IFS=: |
| 123 | |
| 124 | function_list () |
| 125 | { |
| 126 | # See below (DOCO) for description of each field |
| 127 | cat <<EOF | |
| 128 | i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct:::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL |
| 129 | # |
| 130 | i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN |
| 131 | # |
| 132 | v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0 |
| 133 | #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0 |
| 134 | v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0 |
| 135 | v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0 |
| 136 | v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0 |
| 137 | v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0 |
| 138 | v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0 |
| 139 | v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0 |
| 140 | v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0 |
| 141 | # |
| 142 | f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0 |
| 143 | f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0 |
| 144 | f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0 |
| 145 | f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0 |
| 146 | f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0 |
| 147 | f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0 |
| 148 | # |
| 149 | v:2:NUM_REGS:int:num_regs::::0:-1 |
| 150 | v:2:SP_REGNUM:int:sp_regnum::::0:-1 |
| 151 | v:2:FP_REGNUM:int:fp_regnum::::0:-1 |
| 152 | v:2:PC_REGNUM:int:pc_regnum::::0:-1 |
| 153 | f:2:REGISTER_NAME:char *:register_name:int regnr:regnr::0:0 |
| 154 | v:2:REGISTER_SIZE:int:register_size::::0:-1 |
| 155 | v:2:REGISTER_BYTES:int:register_bytes::::0:-1 |
| 156 | f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0 |
| 157 | f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0 |
| 158 | v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1 |
| 159 | f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0 |
| 160 | v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1 |
| 161 | f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0 |
| 162 | # |
| 163 | v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 |
| 164 | v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0 |
| 165 | f:2:CALL_DUMMY_ADDRESS:CORE_ADDR:call_dummy_address:void:::0:0:gdbarch->call_dummy_location == AT_ENTRY_POINT && gdbarch->call_dummy_address == 0: |
| 166 | v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1::0x%08lx |
| 167 | v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::0x%08lx |
| 168 | v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1 |
| 169 | v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END |
| 170 | f:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0 |
| 171 | v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 |
| 172 | v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:::0x%08lx |
| 173 | v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:::0x%08lx |
| 174 | v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1::0x%08lx |
| 175 | v:2:CALL_DUMMY_STACK_ADJUST:int:call_dummy_stack_adjust::::0::gdbarch->call_dummy_stack_adjust_p && gdbarch->call_dummy_stack_adjust == 0:0x%08lx::CALL_DUMMY_STACK_ADJUST_P |
| 176 | f:2:FIX_CALL_DUMMY:void:fix_call_dummy:char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs, struct value **args, struct type *type, int gcc_p:dummy, pc, fun, nargs, args, type, gcc_p::0:0 |
| 177 | # |
| 178 | v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0:::::# |
| 179 | v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0:::::# |
| 180 | f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0 |
| 181 | # |
| 182 | f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr::0:0 |
| 183 | f:2:REGISTER_CONVERT_TO_VIRTUAL:void:register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to::0:0 |
| 184 | f:2:REGISTER_CONVERT_TO_RAW:void:register_convert_to_raw:struct type *type, int regnum, char *from, char *to:type, regnum, from, to::0:0 |
| 185 | # |
| 186 | f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 |
| 187 | f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0 |
| 188 | f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-::0:0 |
| 189 | f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp::0:0 |
| 190 | f:2:POP_FRAME:void:pop_frame:void:-::0:0 |
| 191 | # |
| 192 | # I wish that these would just go away.... |
| 193 | f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x::0:0 |
| 194 | f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x::0:0 |
| 195 | f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x::0:0 |
| 196 | f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x::0:0 |
| 197 | f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x::0:0 |
| 198 | f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x::0:0 |
| 199 | # |
| 200 | f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp::0:0 |
| 201 | f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf::0:0 |
| 202 | f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf::0:0 |
| 203 | f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::0:0 |
| 204 | # |
| 205 | f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0 |
| 206 | f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame::0:0 |
| 207 | # |
| 208 | f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 |
| 209 | f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 |
| 210 | f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:0 |
| 211 | f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint:0 |
| 212 | f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint:0 |
| 213 | v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 |
| 214 | v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1 |
| 215 | # |
| 216 | f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:gdb_addr, gdb_len, rem_addr, rem_len::0:0 |
| 217 | # |
| 218 | v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1 |
| 219 | f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi::0:0 |
| 220 | f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 |
| 221 | f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 |
| 222 | f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 |
| 223 | f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 |
| 224 | f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 |
| 225 | f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 |
| 226 | f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 |
| 227 | # |
| 228 | EOF |
| 229 | grep -v '^#' |
| 230 | } |
| 231 | |
| 232 | |
| 233 | # dump it out |
| 234 | if true |
| 235 | then |
| 236 | exec > new-gdbarch |
| 237 | function_list | while eval read $read |
| 238 | do |
| 239 | cat <<EOF |
| 240 | ${class} ${macro}(${actual}) |
| 241 | ${returntype} ${function} ($formal)${attrib} |
| 242 | level=${level} |
| 243 | default=${default} |
| 244 | init=${init} |
| 245 | init_p=${init_p} |
| 246 | fmt=${fmt} |
| 247 | print=${print} |
| 248 | print_p=${print_p} |
| 249 | description=${description} |
| 250 | EOF |
| 251 | done |
| 252 | exec 1>&2 |
| 253 | fi |
| 254 | |
| 255 | copyright () |
| 256 | { |
| 257 | cat <<EOF |
| 258 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 259 | Copyright 1998-1999, Free Software Foundation, Inc. |
| 260 | |
| 261 | This file is part of GDB. |
| 262 | |
| 263 | This program is free software; you can redistribute it and/or modify |
| 264 | it under the terms of the GNU General Public License as published by |
| 265 | the Free Software Foundation; either version 2 of the License, or |
| 266 | (at your option) any later version. |
| 267 | |
| 268 | This program is distributed in the hope that it will be useful, |
| 269 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 270 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 271 | GNU General Public License for more details. |
| 272 | |
| 273 | You should have received a copy of the GNU General Public License |
| 274 | along with this program; if not, write to the Free Software |
| 275 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 276 | Boston, MA 02111-1307, USA. */ |
| 277 | |
| 278 | /* *INDENT-OFF* */ /* \`\`typedef (f)();'' confuses indent */ |
| 279 | |
| 280 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 281 | |
| 282 | The bourn shell script \`\`gdbarch.sh'' creates the files |
| 283 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 284 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 285 | being reported. |
| 286 | |
| 287 | If editing this file, please also run gdbarch.sh and merge any |
| 288 | changes into that script. Conversely, when makeing sweeping changes |
| 289 | to this file, modifying gdbarch.sh and using its output may prove |
| 290 | easier. */ |
| 291 | |
| 292 | EOF |
| 293 | } |
| 294 | |
| 295 | # |
| 296 | # The .h file |
| 297 | # |
| 298 | |
| 299 | exec > new-gdbarch.h |
| 300 | copyright |
| 301 | cat <<EOF |
| 302 | #ifndef GDBARCH_H |
| 303 | #define GDBARCH_H |
| 304 | |
| 305 | struct frame_info; |
| 306 | struct value; |
| 307 | |
| 308 | |
| 309 | #ifndef GDB_MULTI_ARCH |
| 310 | #define GDB_MULTI_ARCH 0 |
| 311 | #endif |
| 312 | |
| 313 | extern struct gdbarch *current_gdbarch; |
| 314 | |
| 315 | |
| 316 | /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH |
| 317 | macro */ |
| 318 | |
| 319 | |
| 320 | /* If any of the following are defined, the target wasn't correctly |
| 321 | converted. */ |
| 322 | |
| 323 | #if GDB_MULTI_ARCH |
| 324 | #if defined (CALL_DUMMY) |
| 325 | #error "CALL_DUMMY: replaced by CALL_DUMMY_WORDS/SIZEOF_CALL_DUMMY_WORDS" |
| 326 | #endif |
| 327 | #endif |
| 328 | |
| 329 | #if GDB_MULTI_ARCH |
| 330 | #if defined (REGISTER_NAMES) |
| 331 | #error "REGISTER_NAMES: replaced by REGISTER_NAME" |
| 332 | #endif |
| 333 | #endif |
| 334 | |
| 335 | #if GDB_MULTI_ARCH |
| 336 | #if defined (EXTRA_FRAME_INFO) |
| 337 | #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info" |
| 338 | #endif |
| 339 | #endif |
| 340 | |
| 341 | #if GDB_MULTI_ARCH |
| 342 | #if defined (FRAME_FIND_SAVED_REGS) |
| 343 | #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS" |
| 344 | #endif |
| 345 | #endif |
| 346 | EOF |
| 347 | |
| 348 | # function typedef's |
| 349 | echo "" |
| 350 | echo "" |
| 351 | echo "/* The following are pre-initialized by GDBARCH. */" |
| 352 | function_list | while eval read $read |
| 353 | do |
| 354 | case "${class}" in |
| 355 | "i" ) |
| 356 | echo "" |
| 357 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 358 | echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */" |
| 359 | echo "#if GDB_MULTI_ARCH" |
| 360 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 361 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 362 | echo "#endif" |
| 363 | echo "#endif" |
| 364 | ;; |
| 365 | esac |
| 366 | done |
| 367 | |
| 368 | # function typedef's |
| 369 | echo "" |
| 370 | echo "" |
| 371 | echo "/* The following are initialized by the target dependant code. */" |
| 372 | function_list | while eval read $read |
| 373 | do |
| 374 | case "${class}" in |
| 375 | "v" ) |
| 376 | echo "" |
| 377 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 378 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});" |
| 379 | echo "#if GDB_MULTI_ARCH" |
| 380 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 381 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 382 | echo "#endif" |
| 383 | echo "#endif" |
| 384 | ;; |
| 385 | "f" ) |
| 386 | echo "" |
| 387 | echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});" |
| 388 | if [ "${formal}" = "void" ] |
| 389 | then |
| 390 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 391 | else |
| 392 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});" |
| 393 | fi |
| 394 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});" |
| 395 | echo "#if GDB_MULTI_ARCH" |
| 396 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 397 | if [ "${actual}" = "" ] |
| 398 | then |
| 399 | echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| 400 | elif [ "${actual}" = "-" ] |
| 401 | then |
| 402 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 403 | else |
| 404 | echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| 405 | fi |
| 406 | echo "#endif" |
| 407 | echo "#endif" |
| 408 | ;; |
| 409 | esac |
| 410 | done |
| 411 | |
| 412 | # close it off |
| 413 | cat <<EOF |
| 414 | |
| 415 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 416 | |
| 417 | |
| 418 | /* Mechanism for co-ordinating the selection of a specific |
| 419 | architecture. |
| 420 | |
| 421 | GDB targets (*-tdep.c) can register an interest in a specific |
| 422 | architecture. Other GDB components can register a need to maintain |
| 423 | per-architecture data. |
| 424 | |
| 425 | The mechanisms below ensures that there is only a loose connection |
| 426 | between the set-architecture command and the various GDB |
| 427 | components. Each component can independantly register their need |
| 428 | to maintain architecture specific data with gdbarch. |
| 429 | |
| 430 | Pragmatics: |
| 431 | |
| 432 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 433 | didn't scale. |
| 434 | |
| 435 | The more traditional mega-struct containing architecture specific |
| 436 | data for all the various GDB components was also considered. Since |
| 437 | GDB is built from a variable number of (fairly independant) |
| 438 | components it was determined that the global aproach was not |
| 439 | applicable. */ |
| 440 | |
| 441 | |
| 442 | /* Register a new architectural family with GDB. |
| 443 | |
| 444 | Register support for the specified ARCHITECTURE with GDB. When |
| 445 | gdbarch determines that the specified architecture has been |
| 446 | selected, the corresponding INIT function is called. |
| 447 | |
| 448 | -- |
| 449 | |
| 450 | The INIT function takes two parameters: INFO which contains the |
| 451 | information available to gdbarch about the (possibly new) |
| 452 | architecture; ARCHES which is a list of the previously created |
| 453 | \`\`struct gdbarch'' for this architecture. |
| 454 | |
| 455 | The INIT function parameter INFO shall, as far as possible, be |
| 456 | pre-initialized with information obtained from INFO.ABFD or |
| 457 | previously selected architecture (if similar). INIT shall ensure |
| 458 | that the INFO.BYTE_ORDER is non-zero. |
| 459 | |
| 460 | The INIT function shall return any of: NULL - indicating that it |
| 461 | doesn't reconize the selected architecture; an existing \`\`struct |
| 462 | gdbarch'' from the ARCHES list - indicating that the new |
| 463 | architecture is just a synonym for an earlier architecture (see |
| 464 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 465 | - that describes the selected architecture (see |
| 466 | gdbarch_alloc()). */ |
| 467 | |
| 468 | struct gdbarch_list |
| 469 | { |
| 470 | struct gdbarch *gdbarch; |
| 471 | struct gdbarch_list *next; |
| 472 | }; |
| 473 | |
| 474 | struct gdbarch_info |
| 475 | { |
| 476 | /* Use default: bfd_arch_unknown (ZERO). */ |
| 477 | enum bfd_architecture bfd_architecture; |
| 478 | |
| 479 | /* Use default: NULL (ZERO). */ |
| 480 | const struct bfd_arch_info *bfd_arch_info; |
| 481 | |
| 482 | /* Use default: 0 (ZERO). */ |
| 483 | int byte_order; |
| 484 | |
| 485 | /* Use default: NULL (ZERO). */ |
| 486 | bfd *abfd; |
| 487 | |
| 488 | /* Use default: NULL (ZERO). */ |
| 489 | struct gdbarch_tdep_info *tdep_info; |
| 490 | }; |
| 491 | |
| 492 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 493 | |
| 494 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 495 | |
| 496 | |
| 497 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 498 | matches the information provided by INFO. */ |
| 499 | |
| 500 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 501 | |
| 502 | |
| 503 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 504 | basic initialization using values obtained from the INFO andTDEP |
| 505 | parameters. set_gdbarch_*() functions are called to complete the |
| 506 | initialization of the object. */ |
| 507 | |
| 508 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 509 | |
| 510 | |
| 511 | /* Helper function. Force an update of the current architecture. Used |
| 512 | by legacy targets that have added their own target specific |
| 513 | architecture manipulation commands. |
| 514 | |
| 515 | The INFO parameter shall be fully initialized (\`\`memset (&INFO, |
| 516 | sizeof (info), 0)'' set relevant fields) before gdbarch_update() is |
| 517 | called. gdbarch_update() shall initialize any \`\`default'' fields |
| 518 | using information obtained from the previous architecture or |
| 519 | INFO.ABFD (if specified) before calling the corresponding |
| 520 | architectures INIT function. */ |
| 521 | |
| 522 | extern int gdbarch_update (struct gdbarch_info info); |
| 523 | |
| 524 | |
| 525 | |
| 526 | /* Register per-architecture data-pointer. |
| 527 | |
| 528 | Reserve space for a per-architecture data-pointer. An identifier |
| 529 | for the reserved data-pointer is returned. That identifer should |
| 530 | be saved in a local static. |
| 531 | |
| 532 | When a new architecture is selected, INIT() is called. When a |
| 533 | previous architecture is re-selected, the per-architecture |
| 534 | data-pointer for that previous architecture is restored (INIT() is |
| 535 | not called). |
| 536 | |
| 537 | INIT() shall return the initial value for the per-architecture |
| 538 | data-pointer for the current architecture. |
| 539 | |
| 540 | Multiple registrarants for any architecture are allowed (and |
| 541 | strongly encouraged). */ |
| 542 | |
| 543 | typedef void *(gdbarch_data_ftype) (void); |
| 544 | extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init); |
| 545 | |
| 546 | /* Return the value of the per-architecture data-pointer for the |
| 547 | current architecture. */ |
| 548 | |
| 549 | extern void *gdbarch_data (struct gdbarch_data*); |
| 550 | |
| 551 | |
| 552 | |
| 553 | /* Register per-architecture memory region. |
| 554 | |
| 555 | Provide a memory-region swap mechanism. Per-architecture memory |
| 556 | region are created. These memory regions are swapped whenever the |
| 557 | architecture is changed. For a new architecture, the memory region |
| 558 | is initialized with zero (0) and the INIT function is called. |
| 559 | |
| 560 | Memory regions are swapped / initialized in the order that they are |
| 561 | registered. NULL DATA and/or INIT values can be specified. |
| 562 | |
| 563 | New code should use register_gdbarch_data(). */ |
| 564 | |
| 565 | typedef void (gdbarch_swap_ftype) (void); |
| 566 | extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); |
| 567 | |
| 568 | |
| 569 | |
| 570 | /* The target-system-dependant byte order is dynamic */ |
| 571 | |
| 572 | /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness |
| 573 | is selectable at runtime. The user can use the \`\`set endian'' |
| 574 | command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when |
| 575 | target_byte_order should be auto-detected (from the program image |
| 576 | say). */ |
| 577 | |
| 578 | #if GDB_MULTI_ARCH |
| 579 | /* Multi-arch GDB is always bi-endian. */ |
| 580 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 581 | #endif |
| 582 | |
| 583 | #ifndef TARGET_BYTE_ORDER_SELECTABLE_P |
| 584 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE |
| 585 | when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ |
| 586 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 587 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 588 | #else |
| 589 | #define TARGET_BYTE_ORDER_SELECTABLE_P 0 |
| 590 | #endif |
| 591 | #endif |
| 592 | |
| 593 | extern int target_byte_order; |
| 594 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 595 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE |
| 596 | and expect defs.h to re-define TARGET_BYTE_ORDER. */ |
| 597 | #undef TARGET_BYTE_ORDER |
| 598 | #endif |
| 599 | #ifndef TARGET_BYTE_ORDER |
| 600 | #define TARGET_BYTE_ORDER (target_byte_order + 0) |
| 601 | #endif |
| 602 | |
| 603 | extern int target_byte_order_auto; |
| 604 | #ifndef TARGET_BYTE_ORDER_AUTO |
| 605 | #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) |
| 606 | #endif |
| 607 | |
| 608 | |
| 609 | |
| 610 | /* The target-system-dependant BFD architecture is dynamic */ |
| 611 | |
| 612 | extern int target_architecture_auto; |
| 613 | #ifndef TARGET_ARCHITECTURE_AUTO |
| 614 | #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) |
| 615 | #endif |
| 616 | |
| 617 | extern const struct bfd_arch_info *target_architecture; |
| 618 | #ifndef TARGET_ARCHITECTURE |
| 619 | #define TARGET_ARCHITECTURE (target_architecture + 0) |
| 620 | #endif |
| 621 | |
| 622 | /* Notify the target dependant backend of a change to the selected |
| 623 | architecture. A zero return status indicates that the target did |
| 624 | not like the change. */ |
| 625 | |
| 626 | extern int (*target_architecture_hook) (const struct bfd_arch_info *); |
| 627 | |
| 628 | |
| 629 | |
| 630 | /* The target-system-dependant disassembler is semi-dynamic */ |
| 631 | |
| 632 | #include "dis-asm.h" /* Get defs for disassemble_info */ |
| 633 | |
| 634 | extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, |
| 635 | int len, disassemble_info *info); |
| 636 | |
| 637 | extern void dis_asm_memory_error (int status, bfd_vma memaddr, |
| 638 | disassemble_info *info); |
| 639 | |
| 640 | extern void dis_asm_print_address (bfd_vma addr, |
| 641 | disassemble_info *info); |
| 642 | |
| 643 | extern int (*tm_print_insn) (bfd_vma, disassemble_info*); |
| 644 | extern disassemble_info tm_print_insn_info; |
| 645 | #ifndef TARGET_PRINT_INSN |
| 646 | #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) |
| 647 | #endif |
| 648 | #ifndef TARGET_PRINT_INSN_INFO |
| 649 | #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) |
| 650 | #endif |
| 651 | |
| 652 | |
| 653 | |
| 654 | /* Explicit test for D10V architecture. |
| 655 | USE of these macro's is *STRONGLY* discouraged. */ |
| 656 | |
| 657 | #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v) |
| 658 | #ifndef D10V_MAKE_DADDR |
| 659 | #define D10V_MAKE_DADDR(X) (internal_error ("gdbarch: D10V_MAKE_DADDR"), 0) |
| 660 | #endif |
| 661 | #ifndef D10V_MAKE_IADDR |
| 662 | #define D10V_MAKE_IADDR(X) (internal_error ("gdbarch: D10V_MAKE_IADDR"), 0) |
| 663 | #endif |
| 664 | |
| 665 | |
| 666 | /* Fallback definition of FRAMELESS_FUNCTION_INVOCATION */ |
| 667 | #ifndef FRAMELESS_FUNCTION_INVOCATION |
| 668 | #define FRAMELESS_FUNCTION_INVOCATION(FI) (0) |
| 669 | #endif |
| 670 | |
| 671 | |
| 672 | /* Fallback definition of REGISTER_CONVERTIBLE etc */ |
| 673 | extern int generic_register_convertible_not (int reg_nr); |
| 674 | #ifndef REGISTER_CONVERTIBLE |
| 675 | #define REGISTER_CONVERTIBLE(x) (0) |
| 676 | #endif |
| 677 | #ifndef REGISTER_CONVERT_TO_VIRTUAL |
| 678 | #define REGISTER_CONVERT_TO_VIRTUAL(x, y, z, a) |
| 679 | #endif |
| 680 | #ifndef REGISTER_CONVERT_TO_RAW |
| 681 | #define REGISTER_CONVERT_TO_RAW(x, y, z, a) |
| 682 | #endif |
| 683 | |
| 684 | |
| 685 | /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */ |
| 686 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS |
| 687 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0) |
| 688 | #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0) |
| 689 | #else |
| 690 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P |
| 691 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1) |
| 692 | #endif |
| 693 | #endif |
| 694 | |
| 695 | |
| 696 | /* Fallback definition for REGISTER_NAME for systems still defining |
| 697 | REGISTER_NAMES. */ |
| 698 | #ifndef REGISTER_NAME |
| 699 | extern char *gdb_register_names[]; |
| 700 | #define REGISTER_NAME(i) gdb_register_names[i] |
| 701 | #endif |
| 702 | |
| 703 | |
| 704 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 705 | byte-order, ...) using information found in the BFD */ |
| 706 | |
| 707 | extern void set_gdbarch_from_file (bfd *); |
| 708 | |
| 709 | |
| 710 | /* Explicitly set the dynamic target-system-dependant parameters based |
| 711 | on bfd_architecture and machine. */ |
| 712 | |
| 713 | extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); |
| 714 | |
| 715 | |
| 716 | /* Helper function for targets that don't know how my arguments are |
| 717 | being passed */ |
| 718 | |
| 719 | extern int frame_num_args_unknown (struct frame_info *fi); |
| 720 | |
| 721 | |
| 722 | /* gdbarch trace variable */ |
| 723 | extern int gdbarch_debug; |
| 724 | |
| 725 | extern void gdbarch_dump (void); |
| 726 | |
| 727 | #endif |
| 728 | EOF |
| 729 | exec 1>&2 |
| 730 | #../move-if-change new-gdbarch.h gdbarch.h |
| 731 | if ! test -r gdbarch.h |
| 732 | then |
| 733 | echo "gdbarch.h missing? cp new-gdbarch.h gdbarch.h" 1>&2 |
| 734 | elif diff -c gdbarch.h new-gdbarch.h |
| 735 | then |
| 736 | echo "gdbarch.h unchanged" 1>&2 |
| 737 | else |
| 738 | echo "gdbarch.h has changed? cp new-gdbarch.h gdbarch.h" 1>&2 |
| 739 | fi |
| 740 | |
| 741 | |
| 742 | # |
| 743 | # C file |
| 744 | # |
| 745 | |
| 746 | exec > new-gdbarch.c |
| 747 | copyright |
| 748 | cat <<EOF |
| 749 | |
| 750 | #include "defs.h" |
| 751 | |
| 752 | #if GDB_MULTI_ARCH |
| 753 | #include "gdbcmd.h" |
| 754 | #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ |
| 755 | #else |
| 756 | /* Just include everything in sight so that the every old definition |
| 757 | of macro is visible. */ |
| 758 | #include "gdb_string.h" |
| 759 | #include <ctype.h> |
| 760 | #include "symtab.h" |
| 761 | #include "frame.h" |
| 762 | #include "inferior.h" |
| 763 | #include "breakpoint.h" |
| 764 | #include "wait.h" |
| 765 | #include "gdbcore.h" |
| 766 | #include "gdbcmd.h" |
| 767 | #include "target.h" |
| 768 | #include "gdbthread.h" |
| 769 | #include "annotate.h" |
| 770 | #include "symfile.h" /* for overlay functions */ |
| 771 | #endif |
| 772 | #include "symcat.h" |
| 773 | |
| 774 | |
| 775 | /* Static function declarations */ |
| 776 | |
| 777 | static void verify_gdbarch (struct gdbarch *gdbarch); |
| 778 | static void init_gdbarch_data (struct gdbarch *); |
| 779 | static void init_gdbarch_swap (struct gdbarch *); |
| 780 | static void swapout_gdbarch_swap (struct gdbarch *); |
| 781 | static void swapin_gdbarch_swap (struct gdbarch *); |
| 782 | |
| 783 | /* Convenience macro for allocting typesafe memory. */ |
| 784 | |
| 785 | #ifndef XMALLOC |
| 786 | #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) |
| 787 | #endif |
| 788 | |
| 789 | |
| 790 | /* Non-zero if we want to trace architecture code. */ |
| 791 | |
| 792 | #ifndef GDBARCH_DEBUG |
| 793 | #define GDBARCH_DEBUG 0 |
| 794 | #endif |
| 795 | int gdbarch_debug = GDBARCH_DEBUG; |
| 796 | |
| 797 | EOF |
| 798 | |
| 799 | # gdbarch open the gdbarch object |
| 800 | echo "" |
| 801 | echo "/* Maintain the struct gdbarch object */" |
| 802 | echo "" |
| 803 | echo "struct gdbarch" |
| 804 | echo "{" |
| 805 | echo " /* basic architectural information */" |
| 806 | function_list | while eval read $read |
| 807 | do |
| 808 | case "${class}" in |
| 809 | "i" ) echo " ${returntype} ${function};" ;; |
| 810 | esac |
| 811 | done |
| 812 | echo "" |
| 813 | echo " /* target specific vector. */" |
| 814 | echo " struct gdbarch_tdep *tdep;" |
| 815 | echo "" |
| 816 | echo " /* per-architecture data-pointers */" |
| 817 | echo " int nr_data;" |
| 818 | echo " void **data;" |
| 819 | echo "" |
| 820 | echo " /* per-architecture swap-regions */" |
| 821 | echo " struct gdbarch_swap *swap;" |
| 822 | echo "" |
| 823 | cat <<EOF |
| 824 | /* Multi-arch values. |
| 825 | |
| 826 | When extending this structure you must: |
| 827 | |
| 828 | Add the field below. |
| 829 | |
| 830 | Declare set/get functions and define the corresponding |
| 831 | macro in gdbarch.h. |
| 832 | |
| 833 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 834 | initialize the new field. |
| 835 | |
| 836 | verify_gdbarch(): Confirm that the target updated the field |
| 837 | correctly. |
| 838 | |
| 839 | gdbarch_dump(): Add a fprintf_unfiltered call to so that the new |
| 840 | field is dumped out |
| 841 | |
| 842 | \`\`default_gdbarch()'': Append an initial value to the static |
| 843 | variable (base values on the host's c-type system). |
| 844 | |
| 845 | get_gdbarch(): Implement the set/get functions (probably using |
| 846 | the macro's as shortcuts). |
| 847 | |
| 848 | */ |
| 849 | |
| 850 | EOF |
| 851 | function_list | while eval read $read |
| 852 | do |
| 853 | case "${class}" in |
| 854 | "v" ) echo " ${returntype} ${function};" ;; |
| 855 | "f" ) echo " gdbarch_${function}_ftype *${function}${attrib};" ;; |
| 856 | esac |
| 857 | done |
| 858 | echo "};" |
| 859 | |
| 860 | # A pre-initialized vector |
| 861 | echo "" |
| 862 | echo "" |
| 863 | cat <<EOF |
| 864 | /* The default architecture uses host values (for want of a better |
| 865 | choice). */ |
| 866 | EOF |
| 867 | echo "" |
| 868 | echo "extern const struct bfd_arch_info bfd_default_arch_struct;" |
| 869 | echo "" |
| 870 | echo "struct gdbarch default_gdbarch = {" |
| 871 | echo " /* basic architecture information */" |
| 872 | function_list | while eval read $read |
| 873 | do |
| 874 | case "${class}" in |
| 875 | "i" ) echo " ${default}," ;; |
| 876 | esac |
| 877 | done |
| 878 | cat <<EOF |
| 879 | /* target specific vector */ |
| 880 | NULL, |
| 881 | /*per-architecture data-pointers and swap regions */ |
| 882 | 0, NULL, NULL, |
| 883 | /* Multi-arch values */ |
| 884 | EOF |
| 885 | function_list | while eval read $read |
| 886 | do |
| 887 | case "${class}" in |
| 888 | "f" | "v" ) echo " ${default}," ;; |
| 889 | esac |
| 890 | done |
| 891 | cat <<EOF |
| 892 | /* default_gdbarch() */ |
| 893 | }; |
| 894 | struct gdbarch *current_gdbarch = &default_gdbarch; |
| 895 | EOF |
| 896 | |
| 897 | # Create a new gdbarch struct |
| 898 | echo "" |
| 899 | echo "" |
| 900 | cat <<EOF |
| 901 | /* Create a new \`\`struct gdbarch'' based in information provided by |
| 902 | \`\`struct gdbarch_info''. */ |
| 903 | EOF |
| 904 | echo "" |
| 905 | cat <<EOF |
| 906 | struct gdbarch * |
| 907 | gdbarch_alloc (const struct gdbarch_info *info, |
| 908 | struct gdbarch_tdep *tdep) |
| 909 | { |
| 910 | struct gdbarch *gdbarch = XMALLOC (struct gdbarch); |
| 911 | memset (gdbarch, 0, sizeof (*gdbarch)); |
| 912 | |
| 913 | gdbarch->tdep = tdep; |
| 914 | EOF |
| 915 | echo "" |
| 916 | function_list | while eval read $read |
| 917 | do |
| 918 | case "${class}" in |
| 919 | "i" ) echo " gdbarch->${function} = info->${function};" |
| 920 | esac |
| 921 | done |
| 922 | echo "" |
| 923 | echo " /* Force the explicit initialization of these. */" |
| 924 | function_list | while eval read $read |
| 925 | do |
| 926 | case "${class}" in |
| 927 | "f" | "v" ) |
| 928 | if [ "${init}" != "" -a "${init}" != "0" ] |
| 929 | then |
| 930 | echo " gdbarch->${function} = ${init};" |
| 931 | fi |
| 932 | ;; |
| 933 | esac |
| 934 | done |
| 935 | cat <<EOF |
| 936 | /* gdbarch_alloc() */ |
| 937 | |
| 938 | return gdbarch; |
| 939 | } |
| 940 | EOF |
| 941 | |
| 942 | # verify a new architecture |
| 943 | echo "" |
| 944 | echo "" |
| 945 | echo "/* Ensure that all values in a GDBARCH are reasonable. */" |
| 946 | echo "" |
| 947 | cat <<EOF |
| 948 | static void |
| 949 | verify_gdbarch (struct gdbarch *gdbarch) |
| 950 | { |
| 951 | /* Only perform sanity checks on a multi-arch target. */ |
| 952 | if (GDB_MULTI_ARCH <= 0) |
| 953 | return; |
| 954 | /* fundamental */ |
| 955 | if (gdbarch->byte_order == 0) |
| 956 | internal_error ("verify_gdbarch: byte-order unset"); |
| 957 | if (gdbarch->bfd_arch_info == NULL) |
| 958 | internal_error ("verify_gdbarch: bfd_arch_info unset"); |
| 959 | /* Check those that need to be defined for the given multi-arch level. */ |
| 960 | EOF |
| 961 | function_list | while eval read $read |
| 962 | do |
| 963 | case "${class}" in |
| 964 | "f" | "v" ) |
| 965 | if [ "${init_p}" ] |
| 966 | then |
| 967 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 968 | echo " && (${init_p}))" |
| 969 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 970 | elif [ "${init}" ] |
| 971 | then |
| 972 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 973 | echo " && (gdbarch->${function} == ${init}))" |
| 974 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 975 | fi |
| 976 | ;; |
| 977 | esac |
| 978 | done |
| 979 | cat <<EOF |
| 980 | } |
| 981 | EOF |
| 982 | |
| 983 | # dump the structure |
| 984 | echo "" |
| 985 | echo "" |
| 986 | echo "/* Print out the details of the current architecture. */" |
| 987 | echo "" |
| 988 | cat <<EOF |
| 989 | void |
| 990 | gdbarch_dump (void) |
| 991 | { |
| 992 | EOF |
| 993 | function_list | while eval read $read |
| 994 | do |
| 995 | case "${class}" in |
| 996 | "f" ) |
| 997 | echo " fprintf_unfiltered (gdb_stdlog," |
| 998 | echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\"," |
| 999 | echo " (long) current_gdbarch->${function}" |
| 1000 | echo " /*${macro} ()*/);" |
| 1001 | ;; |
| 1002 | * ) |
| 1003 | test "${fmt}" || fmt="%ld" |
| 1004 | test "${print}" || print="(long) ${macro}" |
| 1005 | if [ "${print_p}" = "#" ] |
| 1006 | then |
| 1007 | echo "#ifdef ${macro}" |
| 1008 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1009 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1010 | echo " ${print});" |
| 1011 | echo "#endif" |
| 1012 | elif [ "${print_p}" ] |
| 1013 | then |
| 1014 | echo " if (${print_p})" |
| 1015 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1016 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1017 | echo " ${print});" |
| 1018 | else |
| 1019 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1020 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1021 | echo " ${print});" |
| 1022 | fi |
| 1023 | ;; |
| 1024 | esac |
| 1025 | done |
| 1026 | echo "}" |
| 1027 | |
| 1028 | |
| 1029 | # GET/SET |
| 1030 | echo "" |
| 1031 | cat <<EOF |
| 1032 | struct gdbarch_tdep * |
| 1033 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 1034 | { |
| 1035 | if (gdbarch_debug >= 2) |
| 1036 | /* FIXME: gdb_std??? */ |
| 1037 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n"); |
| 1038 | return gdbarch->tdep; |
| 1039 | } |
| 1040 | EOF |
| 1041 | echo "" |
| 1042 | function_list | while eval read $read |
| 1043 | do |
| 1044 | case "${class}" in |
| 1045 | "f" ) |
| 1046 | echo "" |
| 1047 | echo "${returntype}" |
| 1048 | if [ "${formal}" = "void" ] |
| 1049 | then |
| 1050 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1051 | else |
| 1052 | echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})" |
| 1053 | fi |
| 1054 | echo "{" |
| 1055 | echo " if (gdbarch->${function} == 0)" |
| 1056 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1057 | echo " if (gdbarch_debug >= 2)" |
| 1058 | echo " /* FIXME: gdb_std??? */" |
| 1059 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1060 | test "${actual}" = "-" && actual="" |
| 1061 | if [ "${returntype}" = "void" ] |
| 1062 | then |
| 1063 | echo " gdbarch->${function} (${actual});" |
| 1064 | else |
| 1065 | echo " return gdbarch->${function} (${actual});" |
| 1066 | fi |
| 1067 | echo "}" |
| 1068 | echo "" |
| 1069 | echo "void" |
| 1070 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1071 | echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})" |
| 1072 | echo "{" |
| 1073 | echo " gdbarch->${function} = ${function};" |
| 1074 | echo "}" |
| 1075 | ;; |
| 1076 | "v" ) |
| 1077 | echo "" |
| 1078 | echo "${returntype}" |
| 1079 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1080 | echo "{" |
| 1081 | if [ "${init_p}" ] |
| 1082 | then |
| 1083 | echo " if (${init_p})" |
| 1084 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1085 | elif [ "${init}" ] |
| 1086 | then |
| 1087 | echo " if (gdbarch->${function} == ${init})" |
| 1088 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1089 | fi |
| 1090 | echo " if (gdbarch_debug >= 2)" |
| 1091 | echo " /* FIXME: gdb_std??? */" |
| 1092 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1093 | echo " return gdbarch->${function};" |
| 1094 | echo "}" |
| 1095 | echo "" |
| 1096 | echo "void" |
| 1097 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1098 | echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})" |
| 1099 | echo "{" |
| 1100 | echo " gdbarch->${function} = ${function};" |
| 1101 | echo "}" |
| 1102 | ;; |
| 1103 | "i" ) |
| 1104 | echo "" |
| 1105 | echo "${returntype}" |
| 1106 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1107 | echo "{" |
| 1108 | echo " if (gdbarch_debug >= 2)" |
| 1109 | echo " /* FIXME: gdb_std??? */" |
| 1110 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1111 | echo " return gdbarch->${function};" |
| 1112 | echo "}" |
| 1113 | ;; |
| 1114 | esac |
| 1115 | done |
| 1116 | |
| 1117 | # All the trailing guff |
| 1118 | cat <<EOF |
| 1119 | |
| 1120 | |
| 1121 | /* Keep a registrary of per-architecture data-pointers required by GDB |
| 1122 | modules. */ |
| 1123 | |
| 1124 | struct gdbarch_data |
| 1125 | { |
| 1126 | int index; |
| 1127 | }; |
| 1128 | |
| 1129 | struct gdbarch_data_registration |
| 1130 | { |
| 1131 | gdbarch_data_ftype *init; |
| 1132 | struct gdbarch_data *data; |
| 1133 | struct gdbarch_data_registration *next; |
| 1134 | }; |
| 1135 | |
| 1136 | struct gdbarch_data_registrary |
| 1137 | { |
| 1138 | int nr; |
| 1139 | struct gdbarch_data_registration *registrations; |
| 1140 | }; |
| 1141 | |
| 1142 | struct gdbarch_data_registrary gdbarch_data_registrary = |
| 1143 | { |
| 1144 | 0, NULL, |
| 1145 | }; |
| 1146 | |
| 1147 | struct gdbarch_data * |
| 1148 | register_gdbarch_data (gdbarch_data_ftype *init) |
| 1149 | { |
| 1150 | struct gdbarch_data_registration **curr; |
| 1151 | for (curr = &gdbarch_data_registrary.registrations; |
| 1152 | (*curr) != NULL; |
| 1153 | curr = &(*curr)->next); |
| 1154 | (*curr) = XMALLOC (struct gdbarch_data_registration); |
| 1155 | (*curr)->next = NULL; |
| 1156 | (*curr)->init = init; |
| 1157 | (*curr)->data = XMALLOC (struct gdbarch_data); |
| 1158 | (*curr)->data->index = gdbarch_data_registrary.nr++; |
| 1159 | return (*curr)->data; |
| 1160 | } |
| 1161 | |
| 1162 | |
| 1163 | /* Walk through all the registered users initializing each in turn. */ |
| 1164 | |
| 1165 | static void |
| 1166 | init_gdbarch_data (struct gdbarch *gdbarch) |
| 1167 | { |
| 1168 | struct gdbarch_data_registration *rego; |
| 1169 | gdbarch->nr_data = gdbarch_data_registrary.nr + 1; |
| 1170 | gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data); |
| 1171 | for (rego = gdbarch_data_registrary.registrations; |
| 1172 | rego != NULL; |
| 1173 | rego = rego->next) |
| 1174 | { |
| 1175 | if (rego->data->index < gdbarch->nr_data) |
| 1176 | gdbarch->data[rego->data->index] = rego->init (); |
| 1177 | } |
| 1178 | } |
| 1179 | |
| 1180 | |
| 1181 | /* Return the current value of the specified per-architecture |
| 1182 | data-pointer. */ |
| 1183 | |
| 1184 | void * |
| 1185 | gdbarch_data (data) |
| 1186 | struct gdbarch_data *data; |
| 1187 | { |
| 1188 | if (data->index >= current_gdbarch->nr_data) |
| 1189 | internal_error ("gdbarch_data: request for non-existant data."); |
| 1190 | return current_gdbarch->data[data->index]; |
| 1191 | } |
| 1192 | |
| 1193 | |
| 1194 | |
| 1195 | /* Keep a registrary of swaped data required by GDB modules. */ |
| 1196 | |
| 1197 | struct gdbarch_swap |
| 1198 | { |
| 1199 | void *swap; |
| 1200 | struct gdbarch_swap_registration *source; |
| 1201 | struct gdbarch_swap *next; |
| 1202 | }; |
| 1203 | |
| 1204 | struct gdbarch_swap_registration |
| 1205 | { |
| 1206 | void *data; |
| 1207 | unsigned long sizeof_data; |
| 1208 | gdbarch_swap_ftype *init; |
| 1209 | struct gdbarch_swap_registration *next; |
| 1210 | }; |
| 1211 | |
| 1212 | struct gdbarch_swap_registrary |
| 1213 | { |
| 1214 | int nr; |
| 1215 | struct gdbarch_swap_registration *registrations; |
| 1216 | }; |
| 1217 | |
| 1218 | struct gdbarch_swap_registrary gdbarch_swap_registrary = |
| 1219 | { |
| 1220 | 0, NULL, |
| 1221 | }; |
| 1222 | |
| 1223 | void |
| 1224 | register_gdbarch_swap (void *data, |
| 1225 | unsigned long sizeof_data, |
| 1226 | gdbarch_swap_ftype *init) |
| 1227 | { |
| 1228 | struct gdbarch_swap_registration **rego; |
| 1229 | for (rego = &gdbarch_swap_registrary.registrations; |
| 1230 | (*rego) != NULL; |
| 1231 | rego = &(*rego)->next); |
| 1232 | (*rego) = XMALLOC (struct gdbarch_swap_registration); |
| 1233 | (*rego)->next = NULL; |
| 1234 | (*rego)->init = init; |
| 1235 | (*rego)->data = data; |
| 1236 | (*rego)->sizeof_data = sizeof_data; |
| 1237 | } |
| 1238 | |
| 1239 | |
| 1240 | static void |
| 1241 | init_gdbarch_swap (struct gdbarch *gdbarch) |
| 1242 | { |
| 1243 | struct gdbarch_swap_registration *rego; |
| 1244 | struct gdbarch_swap **curr = &gdbarch->swap; |
| 1245 | for (rego = gdbarch_swap_registrary.registrations; |
| 1246 | rego != NULL; |
| 1247 | rego = rego->next) |
| 1248 | { |
| 1249 | if (rego->data != NULL) |
| 1250 | { |
| 1251 | (*curr) = XMALLOC (struct gdbarch_swap); |
| 1252 | (*curr)->source = rego; |
| 1253 | (*curr)->swap = xmalloc (rego->sizeof_data); |
| 1254 | (*curr)->next = NULL; |
| 1255 | memset (rego->data, 0, rego->sizeof_data); |
| 1256 | curr = &(*curr)->next; |
| 1257 | } |
| 1258 | if (rego->init != NULL) |
| 1259 | rego->init (); |
| 1260 | } |
| 1261 | } |
| 1262 | |
| 1263 | static void |
| 1264 | swapout_gdbarch_swap (struct gdbarch *gdbarch) |
| 1265 | { |
| 1266 | struct gdbarch_swap *curr; |
| 1267 | for (curr = gdbarch->swap; |
| 1268 | curr != NULL; |
| 1269 | curr = curr->next) |
| 1270 | memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); |
| 1271 | } |
| 1272 | |
| 1273 | static void |
| 1274 | swapin_gdbarch_swap (struct gdbarch *gdbarch) |
| 1275 | { |
| 1276 | struct gdbarch_swap *curr; |
| 1277 | for (curr = gdbarch->swap; |
| 1278 | curr != NULL; |
| 1279 | curr = curr->next) |
| 1280 | memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); |
| 1281 | } |
| 1282 | |
| 1283 | |
| 1284 | /* Keep a registrary of the architectures known by GDB. */ |
| 1285 | |
| 1286 | struct gdbarch_init_registration |
| 1287 | { |
| 1288 | enum bfd_architecture bfd_architecture; |
| 1289 | gdbarch_init_ftype *init; |
| 1290 | struct gdbarch_list *arches; |
| 1291 | struct gdbarch_init_registration *next; |
| 1292 | }; |
| 1293 | |
| 1294 | static struct gdbarch_init_registration *gdbarch_init_registrary = NULL; |
| 1295 | |
| 1296 | void |
| 1297 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 1298 | gdbarch_init_ftype *init) |
| 1299 | { |
| 1300 | struct gdbarch_init_registration **curr; |
| 1301 | const struct bfd_arch_info *bfd_arch_info; |
| 1302 | /* Check that BFD reconizes this architecture */ |
| 1303 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 1304 | if (bfd_arch_info == NULL) |
| 1305 | { |
| 1306 | internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); |
| 1307 | } |
| 1308 | /* Check that we haven't seen this architecture before */ |
| 1309 | for (curr = &gdbarch_init_registrary; |
| 1310 | (*curr) != NULL; |
| 1311 | curr = &(*curr)->next) |
| 1312 | { |
| 1313 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 1314 | internal_error ("gdbarch: Duplicate registraration of architecture (%s)", |
| 1315 | bfd_arch_info->printable_name); |
| 1316 | } |
| 1317 | /* log it */ |
| 1318 | if (gdbarch_debug) |
| 1319 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", |
| 1320 | bfd_arch_info->printable_name, |
| 1321 | (long) init); |
| 1322 | /* Append it */ |
| 1323 | (*curr) = XMALLOC (struct gdbarch_init_registration); |
| 1324 | (*curr)->bfd_architecture = bfd_architecture; |
| 1325 | (*curr)->init = init; |
| 1326 | (*curr)->arches = NULL; |
| 1327 | (*curr)->next = NULL; |
| 1328 | } |
| 1329 | |
| 1330 | |
| 1331 | |
| 1332 | /* Look for an architecture using gdbarch_info. Base search on only |
| 1333 | BFD_ARCH_INFO and BYTE_ORDER. */ |
| 1334 | |
| 1335 | struct gdbarch_list * |
| 1336 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 1337 | const struct gdbarch_info *info) |
| 1338 | { |
| 1339 | for (; arches != NULL; arches = arches->next) |
| 1340 | { |
| 1341 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 1342 | continue; |
| 1343 | if (info->byte_order != arches->gdbarch->byte_order) |
| 1344 | continue; |
| 1345 | return arches; |
| 1346 | } |
| 1347 | return NULL; |
| 1348 | } |
| 1349 | |
| 1350 | |
| 1351 | /* Update the current architecture. Return ZERO if the update request |
| 1352 | failed. */ |
| 1353 | |
| 1354 | int |
| 1355 | gdbarch_update (struct gdbarch_info info) |
| 1356 | { |
| 1357 | struct gdbarch *new_gdbarch; |
| 1358 | struct gdbarch_list **list; |
| 1359 | struct gdbarch_init_registration *rego; |
| 1360 | |
| 1361 | /* Fill in any missing bits. Most important is the bfd_architecture |
| 1362 | which is used to select the target architecture. */ |
| 1363 | if (info.bfd_architecture == bfd_arch_unknown) |
| 1364 | { |
| 1365 | if (info.bfd_arch_info != NULL) |
| 1366 | info.bfd_architecture = info.bfd_arch_info->arch; |
| 1367 | else if (info.abfd != NULL) |
| 1368 | info.bfd_architecture = bfd_get_arch (info.abfd); |
| 1369 | /* FIXME - should query BFD for its default architecture. */ |
| 1370 | else |
| 1371 | info.bfd_architecture = current_gdbarch->bfd_arch_info->arch; |
| 1372 | } |
| 1373 | if (info.bfd_arch_info == NULL) |
| 1374 | { |
| 1375 | if (target_architecture_auto && info.abfd != NULL) |
| 1376 | info.bfd_arch_info = bfd_get_arch_info (info.abfd); |
| 1377 | else |
| 1378 | info.bfd_arch_info = current_gdbarch->bfd_arch_info; |
| 1379 | } |
| 1380 | if (info.byte_order == 0) |
| 1381 | { |
| 1382 | if (target_byte_order_auto && info.abfd != NULL) |
| 1383 | info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN |
| 1384 | : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN |
| 1385 | : 0); |
| 1386 | else |
| 1387 | info.byte_order = current_gdbarch->byte_order; |
| 1388 | /* FIXME - should query BFD for its default byte-order. */ |
| 1389 | } |
| 1390 | /* A default for abfd? */ |
| 1391 | |
| 1392 | /* Find the target that knows about this architecture. */ |
| 1393 | for (rego = gdbarch_init_registrary; |
| 1394 | rego != NULL && rego->bfd_architecture != info.bfd_architecture; |
| 1395 | rego = rego->next); |
| 1396 | if (rego == NULL) |
| 1397 | { |
| 1398 | if (gdbarch_debug) |
| 1399 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n"); |
| 1400 | return 0; |
| 1401 | } |
| 1402 | |
| 1403 | if (gdbarch_debug) |
| 1404 | { |
| 1405 | fprintf_unfiltered (gdb_stdlog, |
| 1406 | "gdbarch_update: info.bfd_architecture %d (%s)\n", |
| 1407 | info.bfd_architecture, |
| 1408 | bfd_lookup_arch (info.bfd_architecture, 0)->printable_name); |
| 1409 | fprintf_unfiltered (gdb_stdlog, |
| 1410 | "gdbarch_update: info.bfd_arch_info %s\n", |
| 1411 | (info.bfd_arch_info != NULL |
| 1412 | ? info.bfd_arch_info->printable_name |
| 1413 | : "(null)")); |
| 1414 | fprintf_unfiltered (gdb_stdlog, |
| 1415 | "gdbarch_update: info.byte_order %d (%s)\n", |
| 1416 | info.byte_order, |
| 1417 | (info.byte_order == BIG_ENDIAN ? "big" |
| 1418 | : info.byte_order == LITTLE_ENDIAN ? "little" |
| 1419 | : "default")); |
| 1420 | fprintf_unfiltered (gdb_stdlog, |
| 1421 | "gdbarch_update: info.abfd 0x%lx\n", |
| 1422 | (long) info.abfd); |
| 1423 | fprintf_unfiltered (gdb_stdlog, |
| 1424 | "gdbarch_update: info.tdep_info 0x%lx\n", |
| 1425 | (long) info.tdep_info); |
| 1426 | } |
| 1427 | |
| 1428 | /* Ask the target for a replacement architecture. */ |
| 1429 | new_gdbarch = rego->init (info, rego->arches); |
| 1430 | |
| 1431 | /* Did the target like it? No. Reject the change. */ |
| 1432 | if (new_gdbarch == NULL) |
| 1433 | { |
| 1434 | if (gdbarch_debug) |
| 1435 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\n"); |
| 1436 | return 0; |
| 1437 | } |
| 1438 | |
| 1439 | /* Did the architecture change? No. Do nothing. */ |
| 1440 | if (current_gdbarch == new_gdbarch) |
| 1441 | { |
| 1442 | if (gdbarch_debug) |
| 1443 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n", |
| 1444 | (long) new_gdbarch, |
| 1445 | new_gdbarch->bfd_arch_info->printable_name); |
| 1446 | return 1; |
| 1447 | } |
| 1448 | |
| 1449 | /* Swap all data belonging to the old target out */ |
| 1450 | swapout_gdbarch_swap (current_gdbarch); |
| 1451 | |
| 1452 | /* Is this a pre-existing architecture? Yes. Swap it in. */ |
| 1453 | for (list = ®o->arches; |
| 1454 | (*list) != NULL; |
| 1455 | list = &(*list)->next) |
| 1456 | { |
| 1457 | if ((*list)->gdbarch == new_gdbarch) |
| 1458 | { |
| 1459 | if (gdbarch_debug) |
| 1460 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n", |
| 1461 | (long) new_gdbarch, |
| 1462 | new_gdbarch->bfd_arch_info->printable_name); |
| 1463 | current_gdbarch = new_gdbarch; |
| 1464 | swapin_gdbarch_swap (new_gdbarch); |
| 1465 | return 1; |
| 1466 | } |
| 1467 | } |
| 1468 | |
| 1469 | /* Append this new architecture to this targets list. */ |
| 1470 | (*list) = XMALLOC (struct gdbarch_list); |
| 1471 | (*list)->next = NULL; |
| 1472 | (*list)->gdbarch = new_gdbarch; |
| 1473 | |
| 1474 | /* Switch to this new architecture. Dump it out. */ |
| 1475 | current_gdbarch = new_gdbarch; |
| 1476 | if (gdbarch_debug) |
| 1477 | { |
| 1478 | fprintf_unfiltered (gdb_stdlog, |
| 1479 | "gdbarch_update: New architecture 0x%08lx (%s) selected\n", |
| 1480 | (long) new_gdbarch, |
| 1481 | new_gdbarch->bfd_arch_info->printable_name); |
| 1482 | gdbarch_dump (); |
| 1483 | } |
| 1484 | |
| 1485 | /* Check that the newly installed architecture is valid. */ |
| 1486 | verify_gdbarch (new_gdbarch); |
| 1487 | |
| 1488 | /* Initialize the per-architecture memory (swap) areas. |
| 1489 | CURRENT_GDBARCH must be update before these modules are |
| 1490 | called. */ |
| 1491 | init_gdbarch_swap (new_gdbarch); |
| 1492 | |
| 1493 | /* Initialize the per-architecture data-pointer of all parties that |
| 1494 | registered an interest in this architecture. CURRENT_GDBARCH |
| 1495 | must be updated before these modules are called. */ |
| 1496 | init_gdbarch_data (new_gdbarch); |
| 1497 | |
| 1498 | return 1; |
| 1499 | } |
| 1500 | |
| 1501 | |
| 1502 | |
| 1503 | /* Functions to manipulate the endianness of the target. */ |
| 1504 | |
| 1505 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 1506 | /* compat - Catch old targets that expect a selectable byte-order to |
| 1507 | default to BIG_ENDIAN */ |
| 1508 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1509 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN |
| 1510 | #endif |
| 1511 | #endif |
| 1512 | #if !TARGET_BYTE_ORDER_SELECTABLE_P |
| 1513 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1514 | /* compat - Catch old non byte-order selectable targets that do not |
| 1515 | define TARGET_BYTE_ORDER_DEFAULT and instead expect |
| 1516 | TARGET_BYTE_ORDER to be used as the default. For targets that |
| 1517 | defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the |
| 1518 | below will get a strange compiler warning. */ |
| 1519 | #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER |
| 1520 | #endif |
| 1521 | #endif |
| 1522 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1523 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */ |
| 1524 | #endif |
| 1525 | int target_byte_order = TARGET_BYTE_ORDER_DEFAULT; |
| 1526 | int target_byte_order_auto = 1; |
| 1527 | |
| 1528 | /* Chain containing the \"set endian\" commands. */ |
| 1529 | static struct cmd_list_element *endianlist = NULL; |
| 1530 | |
| 1531 | /* Called by \`\`show endian''. */ |
| 1532 | static void |
| 1533 | show_endian (char *args, int from_tty) |
| 1534 | { |
| 1535 | char *msg = |
| 1536 | (TARGET_BYTE_ORDER_AUTO |
| 1537 | ? "The target endianness is set automatically (currently %s endian)\n" |
| 1538 | : "The target is assumed to be %s endian\n"); |
| 1539 | printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little")); |
| 1540 | } |
| 1541 | |
| 1542 | /* Called if the user enters \`\`set endian'' without an argument. */ |
| 1543 | static void |
| 1544 | set_endian (char *args, int from_tty) |
| 1545 | { |
| 1546 | printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n"); |
| 1547 | show_endian (args, from_tty); |
| 1548 | } |
| 1549 | |
| 1550 | /* Called by \`\`set endian big''. */ |
| 1551 | static void |
| 1552 | set_endian_big (char *args, int from_tty) |
| 1553 | { |
| 1554 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1555 | { |
| 1556 | target_byte_order = BIG_ENDIAN; |
| 1557 | target_byte_order_auto = 0; |
| 1558 | if (GDB_MULTI_ARCH) |
| 1559 | { |
| 1560 | struct gdbarch_info info; |
| 1561 | memset (&info, 0, sizeof info); |
| 1562 | info.byte_order = BIG_ENDIAN; |
| 1563 | gdbarch_update (info); |
| 1564 | } |
| 1565 | } |
| 1566 | else |
| 1567 | { |
| 1568 | printf_unfiltered ("Byte order is not selectable."); |
| 1569 | show_endian (args, from_tty); |
| 1570 | } |
| 1571 | } |
| 1572 | |
| 1573 | /* Called by \`\`set endian little''. */ |
| 1574 | static void |
| 1575 | set_endian_little (char *args, int from_tty) |
| 1576 | { |
| 1577 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1578 | { |
| 1579 | target_byte_order = LITTLE_ENDIAN; |
| 1580 | target_byte_order_auto = 0; |
| 1581 | if (GDB_MULTI_ARCH) |
| 1582 | { |
| 1583 | struct gdbarch_info info; |
| 1584 | memset (&info, 0, sizeof info); |
| 1585 | info.byte_order = LITTLE_ENDIAN; |
| 1586 | gdbarch_update (info); |
| 1587 | } |
| 1588 | } |
| 1589 | else |
| 1590 | { |
| 1591 | printf_unfiltered ("Byte order is not selectable."); |
| 1592 | show_endian (args, from_tty); |
| 1593 | } |
| 1594 | } |
| 1595 | |
| 1596 | /* Called by \`\`set endian auto''. */ |
| 1597 | static void |
| 1598 | set_endian_auto (char *args, int from_tty) |
| 1599 | { |
| 1600 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1601 | { |
| 1602 | target_byte_order_auto = 1; |
| 1603 | } |
| 1604 | else |
| 1605 | { |
| 1606 | printf_unfiltered ("Byte order is not selectable."); |
| 1607 | show_endian (args, from_tty); |
| 1608 | } |
| 1609 | } |
| 1610 | |
| 1611 | /* Set the endianness from a BFD. */ |
| 1612 | static void |
| 1613 | set_endian_from_file (bfd *abfd) |
| 1614 | { |
| 1615 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1616 | { |
| 1617 | int want; |
| 1618 | |
| 1619 | if (bfd_big_endian (abfd)) |
| 1620 | want = BIG_ENDIAN; |
| 1621 | else |
| 1622 | want = LITTLE_ENDIAN; |
| 1623 | if (TARGET_BYTE_ORDER_AUTO) |
| 1624 | target_byte_order = want; |
| 1625 | else if (TARGET_BYTE_ORDER != want) |
| 1626 | warning ("%s endian file does not match %s endian target.", |
| 1627 | want == BIG_ENDIAN ? "big" : "little", |
| 1628 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1629 | } |
| 1630 | else |
| 1631 | { |
| 1632 | if (bfd_big_endian (abfd) |
| 1633 | ? TARGET_BYTE_ORDER != BIG_ENDIAN |
| 1634 | : TARGET_BYTE_ORDER == BIG_ENDIAN) |
| 1635 | warning ("%s endian file does not match %s endian target.", |
| 1636 | bfd_big_endian (abfd) ? "big" : "little", |
| 1637 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1638 | } |
| 1639 | } |
| 1640 | |
| 1641 | |
| 1642 | |
| 1643 | /* Functions to manipulate the architecture of the target */ |
| 1644 | |
| 1645 | enum set_arch { set_arch_auto, set_arch_manual }; |
| 1646 | |
| 1647 | int target_architecture_auto = 1; |
| 1648 | extern const struct bfd_arch_info bfd_default_arch_struct; |
| 1649 | const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct; |
| 1650 | int (*target_architecture_hook) (const struct bfd_arch_info *ap); |
| 1651 | |
| 1652 | static void show_endian (char *, int); |
| 1653 | static void set_endian (char *, int); |
| 1654 | static void set_endian_big (char *, int); |
| 1655 | static void set_endian_little (char *, int); |
| 1656 | static void set_endian_auto (char *, int); |
| 1657 | static void set_endian_from_file (bfd *); |
| 1658 | static int arch_ok (const struct bfd_arch_info *arch); |
| 1659 | static void set_arch (const struct bfd_arch_info *arch, enum set_arch type); |
| 1660 | static void show_architecture (char *, int); |
| 1661 | static void set_architecture (char *, int); |
| 1662 | static void info_architecture (char *, int); |
| 1663 | static void set_architecture_from_file (bfd *); |
| 1664 | |
| 1665 | /* Do the real work of changing the current architecture */ |
| 1666 | |
| 1667 | static int |
| 1668 | arch_ok (const struct bfd_arch_info *arch) |
| 1669 | { |
| 1670 | /* Should be performing the more basic check that the binary is |
| 1671 | compatible with GDB. */ |
| 1672 | /* Check with the target that the architecture is valid. */ |
| 1673 | return (target_architecture_hook == NULL |
| 1674 | || target_architecture_hook (arch)); |
| 1675 | } |
| 1676 | |
| 1677 | static void |
| 1678 | set_arch (const struct bfd_arch_info *arch, |
| 1679 | enum set_arch type) |
| 1680 | { |
| 1681 | switch (type) |
| 1682 | { |
| 1683 | case set_arch_auto: |
| 1684 | if (!arch_ok (arch)) |
| 1685 | warning ("Target may not support %s architecture", |
| 1686 | arch->printable_name); |
| 1687 | target_architecture = arch; |
| 1688 | break; |
| 1689 | case set_arch_manual: |
| 1690 | if (!arch_ok (arch)) |
| 1691 | { |
| 1692 | printf_unfiltered ("Target does not support \`%s' architecture.\n", |
| 1693 | arch->printable_name); |
| 1694 | } |
| 1695 | else |
| 1696 | { |
| 1697 | target_architecture_auto = 0; |
| 1698 | target_architecture = arch; |
| 1699 | } |
| 1700 | break; |
| 1701 | } |
| 1702 | if (gdbarch_debug) |
| 1703 | gdbarch_dump (); |
| 1704 | } |
| 1705 | |
| 1706 | /* Called if the user enters \`\`show architecture'' without an argument. */ |
| 1707 | static void |
| 1708 | show_architecture (char *args, int from_tty) |
| 1709 | { |
| 1710 | const char *arch; |
| 1711 | arch = TARGET_ARCHITECTURE->printable_name; |
| 1712 | if (target_architecture_auto) |
| 1713 | printf_filtered ("The target architecture is set automatically (currently %s)\n", arch); |
| 1714 | else |
| 1715 | printf_filtered ("The target architecture is assumed to be %s\n", arch); |
| 1716 | } |
| 1717 | |
| 1718 | /* Called if the user enters \`\`set architecture'' with or without an |
| 1719 | argument. */ |
| 1720 | static void |
| 1721 | set_architecture (char *args, int from_tty) |
| 1722 | { |
| 1723 | if (args == NULL) |
| 1724 | { |
| 1725 | printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n"); |
| 1726 | } |
| 1727 | else if (strcmp (args, "auto") == 0) |
| 1728 | { |
| 1729 | target_architecture_auto = 1; |
| 1730 | } |
| 1731 | else if (GDB_MULTI_ARCH) |
| 1732 | { |
| 1733 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1734 | if (arch == NULL) |
| 1735 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1736 | else |
| 1737 | { |
| 1738 | struct gdbarch_info info; |
| 1739 | memset (&info, 0, sizeof info); |
| 1740 | info.bfd_arch_info = arch; |
| 1741 | if (gdbarch_update (info)) |
| 1742 | target_architecture_auto = 0; |
| 1743 | else |
| 1744 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1745 | } |
| 1746 | } |
| 1747 | else |
| 1748 | { |
| 1749 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1750 | if (arch != NULL) |
| 1751 | set_arch (arch, set_arch_manual); |
| 1752 | else |
| 1753 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1754 | } |
| 1755 | } |
| 1756 | |
| 1757 | /* Called if the user enters \`\`info architecture'' without an argument. */ |
| 1758 | static void |
| 1759 | info_architecture (char *args, int from_tty) |
| 1760 | { |
| 1761 | enum bfd_architecture a; |
| 1762 | if (GDB_MULTI_ARCH) |
| 1763 | { |
| 1764 | if (gdbarch_init_registrary != NULL) |
| 1765 | { |
| 1766 | struct gdbarch_init_registration *rego; |
| 1767 | printf_filtered ("Available architectures are:\n"); |
| 1768 | for (rego = gdbarch_init_registrary; |
| 1769 | rego != NULL; |
| 1770 | rego = rego->next) |
| 1771 | { |
| 1772 | const struct bfd_arch_info *ap; |
| 1773 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 1774 | if (ap != NULL) |
| 1775 | { |
| 1776 | do |
| 1777 | { |
| 1778 | printf_filtered (" %s", ap->printable_name); |
| 1779 | ap = ap->next; |
| 1780 | } |
| 1781 | while (ap != NULL); |
| 1782 | printf_filtered ("\n"); |
| 1783 | } |
| 1784 | } |
| 1785 | } |
| 1786 | else |
| 1787 | { |
| 1788 | printf_filtered ("There are no available architectures.\n"); |
| 1789 | } |
| 1790 | return; |
| 1791 | } |
| 1792 | printf_filtered ("Available architectures are:\n"); |
| 1793 | for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++) |
| 1794 | { |
| 1795 | const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0); |
| 1796 | if (ap != NULL) |
| 1797 | { |
| 1798 | do |
| 1799 | { |
| 1800 | printf_filtered (" %s", ap->printable_name); |
| 1801 | ap = ap->next; |
| 1802 | } |
| 1803 | while (ap != NULL); |
| 1804 | printf_filtered ("\n"); |
| 1805 | } |
| 1806 | } |
| 1807 | } |
| 1808 | |
| 1809 | /* Set the architecture from arch/machine */ |
| 1810 | void |
| 1811 | set_architecture_from_arch_mach (arch, mach) |
| 1812 | enum bfd_architecture arch; |
| 1813 | unsigned long mach; |
| 1814 | { |
| 1815 | const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach); |
| 1816 | if (wanted != NULL) |
| 1817 | set_arch (wanted, set_arch_manual); |
| 1818 | else |
| 1819 | internal_error ("gdbarch: hardwired architecture/machine not reconized"); |
| 1820 | } |
| 1821 | |
| 1822 | /* Set the architecture from a BFD */ |
| 1823 | static void |
| 1824 | set_architecture_from_file (bfd *abfd) |
| 1825 | { |
| 1826 | const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd); |
| 1827 | if (target_architecture_auto) |
| 1828 | { |
| 1829 | set_arch (wanted, set_arch_auto); |
| 1830 | } |
| 1831 | else if (wanted != target_architecture) |
| 1832 | { |
| 1833 | warning ("%s architecture file may be incompatible with %s target.", |
| 1834 | wanted->printable_name, |
| 1835 | target_architecture->printable_name); |
| 1836 | } |
| 1837 | } |
| 1838 | |
| 1839 | |
| 1840 | /* Misc helper functions for targets. */ |
| 1841 | |
| 1842 | int |
| 1843 | frame_num_args_unknown (fi) |
| 1844 | struct frame_info *fi; |
| 1845 | { |
| 1846 | return -1; |
| 1847 | } |
| 1848 | |
| 1849 | |
| 1850 | int |
| 1851 | generic_register_convertible_not (num) |
| 1852 | int num; |
| 1853 | { |
| 1854 | return 0; |
| 1855 | } |
| 1856 | |
| 1857 | /* Disassembler */ |
| 1858 | |
| 1859 | /* Pointer to the target-dependent disassembly function. */ |
| 1860 | int (*tm_print_insn) (bfd_vma, disassemble_info *); |
| 1861 | disassemble_info tm_print_insn_info; |
| 1862 | |
| 1863 | |
| 1864 | |
| 1865 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 1866 | byte-order) using information found in the BFD */ |
| 1867 | |
| 1868 | void |
| 1869 | set_gdbarch_from_file (abfd) |
| 1870 | bfd *abfd; |
| 1871 | { |
| 1872 | if (GDB_MULTI_ARCH) |
| 1873 | { |
| 1874 | struct gdbarch_info info; |
| 1875 | memset (&info, 0, sizeof info); |
| 1876 | info.abfd = abfd; |
| 1877 | gdbarch_update (info); |
| 1878 | return; |
| 1879 | } |
| 1880 | set_architecture_from_file (abfd); |
| 1881 | set_endian_from_file (abfd); |
| 1882 | } |
| 1883 | |
| 1884 | |
| 1885 | #if defined (CALL_DUMMY) |
| 1886 | /* FIXME - this should go away */ |
| 1887 | LONGEST call_dummy_words[] = CALL_DUMMY; |
| 1888 | int sizeof_call_dummy_words = sizeof (call_dummy_words); |
| 1889 | #endif |
| 1890 | |
| 1891 | |
| 1892 | extern void _initialize_gdbarch (void); |
| 1893 | void |
| 1894 | _initialize_gdbarch () |
| 1895 | { |
| 1896 | add_prefix_cmd ("endian", class_support, set_endian, |
| 1897 | "Set endianness of target.", |
| 1898 | &endianlist, "set endian ", 0, &setlist); |
| 1899 | add_cmd ("big", class_support, set_endian_big, |
| 1900 | "Set target as being big endian.", &endianlist); |
| 1901 | add_cmd ("little", class_support, set_endian_little, |
| 1902 | "Set target as being little endian.", &endianlist); |
| 1903 | add_cmd ("auto", class_support, set_endian_auto, |
| 1904 | "Select target endianness automatically.", &endianlist); |
| 1905 | add_cmd ("endian", class_support, show_endian, |
| 1906 | "Show endianness of target.", &showlist); |
| 1907 | |
| 1908 | add_cmd ("architecture", class_support, set_architecture, |
| 1909 | "Set architecture of target.", &setlist); |
| 1910 | add_alias_cmd ("processor", "architecture", class_support, 1, &setlist); |
| 1911 | add_cmd ("architecture", class_support, show_architecture, |
| 1912 | "Show architecture of target.", &showlist); |
| 1913 | add_cmd ("architecture", class_support, info_architecture, |
| 1914 | "List supported target architectures", &infolist); |
| 1915 | |
| 1916 | INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered); |
| 1917 | tm_print_insn_info.flavour = bfd_target_unknown_flavour; |
| 1918 | tm_print_insn_info.read_memory_func = dis_asm_read_memory; |
| 1919 | tm_print_insn_info.memory_error_func = dis_asm_memory_error; |
| 1920 | tm_print_insn_info.print_address_func = dis_asm_print_address; |
| 1921 | |
| 1922 | add_show_from_set (add_set_cmd ("archdebug", |
| 1923 | class_maintenance, |
| 1924 | var_zinteger, |
| 1925 | (char *)&gdbarch_debug, |
| 1926 | "Set architecture debugging.\n\\ |
| 1927 | When non-zero, architecture debugging is enabled.", &setlist), |
| 1928 | &showlist); |
| 1929 | } |
| 1930 | EOF |
| 1931 | |
| 1932 | # close things off |
| 1933 | exec 1>&2 |
| 1934 | #../move-if-change new-gdbarch.c gdbarch.c |
| 1935 | if ! test -r gdbarch.c |
| 1936 | then |
| 1937 | echo "gdbarch.c missing? cp new-gdbarch.c gdbarch.c" 1>&2 |
| 1938 | elif diff -c gdbarch.c new-gdbarch.c |
| 1939 | then |
| 1940 | echo "gdbarch.c unchanged" 1>&2 |
| 1941 | else |
| 1942 | echo "gdbarch.c has changed? cp new-gdbarch.c gdbarch.c" 1>&2 |
| 1943 | fi |