| 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 invalid_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 | |
| 31 | # # -> line disable |
| 32 | # f -> function |
| 33 | # hiding a function |
| 34 | # v -> variable |
| 35 | # hiding a variable |
| 36 | # i -> set from info |
| 37 | # hiding something from the ``struct info'' object |
| 38 | |
| 39 | level ) : ;; |
| 40 | |
| 41 | # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= |
| 42 | # LEVEL is a predicate on checking that a given method is |
| 43 | # initialized (using INVALID_P). |
| 44 | |
| 45 | macro ) : ;; |
| 46 | |
| 47 | # The name of the MACRO that this method is to be accessed by. |
| 48 | |
| 49 | returntype ) : ;; |
| 50 | |
| 51 | # For functions, the return type; for variables, the data type |
| 52 | |
| 53 | function ) : ;; |
| 54 | |
| 55 | # For functions, the member function name; for variables, the |
| 56 | # variable name. Member function names are always prefixed with |
| 57 | # ``gdbarch_'' for name-space purity. |
| 58 | |
| 59 | formal ) : ;; |
| 60 | |
| 61 | # The formal argument list. It is assumed that the formal |
| 62 | # argument list includes the actual name of each list element. |
| 63 | # A function with no arguments shall have ``void'' as the formal |
| 64 | # argument list. |
| 65 | |
| 66 | actual ) : ;; |
| 67 | |
| 68 | # The list of actual arguments. The arguments specified shall |
| 69 | # match the FORMAL list given above. Functions with out |
| 70 | # arguments leave this blank. |
| 71 | |
| 72 | attrib ) : ;; |
| 73 | |
| 74 | # Any GCC attributes that should be attached to the function |
| 75 | # declaration. At present this field is unused. |
| 76 | |
| 77 | default ) : ;; |
| 78 | |
| 79 | # To help with the GDB startup a default static gdbarch object |
| 80 | # is created. DEFAULT is the value to insert into the static |
| 81 | # gdbarch object. If empty ZERO is used. |
| 82 | |
| 83 | init ) : ;; |
| 84 | |
| 85 | # Any initial value to assign to a new gdbarch object after it |
| 86 | # as been malloc()ed. Zero is used by default. |
| 87 | |
| 88 | invalid_p ) : ;; |
| 89 | |
| 90 | # A predicate equation that validates MEMBER. Non-zero is returned |
| 91 | # if the code creating the new architecture failed to initialize |
| 92 | # the MEMBER or initialized the member to something invalid. |
| 93 | # By default, a check that the value is no longer equal to INIT |
| 94 | # is performed. The equation ``0'' disables the invalid_p check. |
| 95 | |
| 96 | fmt ) : ;; |
| 97 | |
| 98 | # printf style format string that can be used to print out the |
| 99 | # MEMBER. The default is to assume "%ld" is safe. Sometimes |
| 100 | # "%s" is useful. For functions, this is ignored and the |
| 101 | # function address is printed. |
| 102 | |
| 103 | print ) : ;; |
| 104 | |
| 105 | # An optional equation that converts the MEMBER into a value |
| 106 | # suitable for that FMT. By default it is assumed that the |
| 107 | # member's MACRO cast to long is safe. |
| 108 | |
| 109 | print_p ) : ;; |
| 110 | |
| 111 | # An optional indicator for any predicte to wrap around the |
| 112 | # print member code. |
| 113 | # # -> Wrap print up in ``#ifdef MACRO'' |
| 114 | # exp -> Wrap print up in ``if (${print_p}) ... |
| 115 | |
| 116 | description ) : ;; |
| 117 | |
| 118 | # Currently unused. |
| 119 | |
| 120 | *) exit 1;; |
| 121 | esac |
| 122 | done |
| 123 | |
| 124 | IFS=: |
| 125 | |
| 126 | function_list () |
| 127 | { |
| 128 | # See below (DOCO) for description of each field |
| 129 | cat <<EOF | |
| 130 | i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct:::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL |
| 131 | # |
| 132 | i:2:TARGET_BYTE_ORDER:int:byte_order::::BIG_ENDIAN |
| 133 | # |
| 134 | v:1:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address:0 |
| 135 | v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0 |
| 136 | #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0 |
| 137 | v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0 |
| 138 | v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0 |
| 139 | v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0 |
| 140 | v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0 |
| 141 | v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0 |
| 142 | v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0 |
| 143 | v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0 |
| 144 | # |
| 145 | f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0 |
| 146 | f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0 |
| 147 | f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0 |
| 148 | f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0 |
| 149 | f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0 |
| 150 | f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0 |
| 151 | # |
| 152 | v:2:NUM_REGS:int:num_regs::::0:-1 |
| 153 | v:2:SP_REGNUM:int:sp_regnum::::0:-1 |
| 154 | v:2:FP_REGNUM:int:fp_regnum::::0:-1 |
| 155 | v:2:PC_REGNUM:int:pc_regnum::::0:-1 |
| 156 | f:2:REGISTER_NAME:char *:register_name:int regnr:regnr::0:0 |
| 157 | v:2:REGISTER_SIZE:int:register_size::::0:-1 |
| 158 | v:2:REGISTER_BYTES:int:register_bytes::::0:-1 |
| 159 | f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0 |
| 160 | f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::0:0 |
| 161 | v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1 |
| 162 | f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::0:0 |
| 163 | v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1 |
| 164 | f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0 |
| 165 | # |
| 166 | v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 |
| 167 | v:2:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0 |
| 168 | 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: |
| 169 | v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1::0x%08lx |
| 170 | v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::0x%08lx |
| 171 | v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1 |
| 172 | v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END |
| 173 | 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 |
| 174 | v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 |
| 175 | v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:::0x%08lx |
| 176 | v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:::0x%08lx |
| 177 | v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1::0x%08lx |
| 178 | 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 |
| 179 | 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 |
| 180 | # |
| 181 | v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0:::::# |
| 182 | v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0:::::# |
| 183 | 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 |
| 184 | # |
| 185 | f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr::0:0 |
| 186 | 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 |
| 187 | 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 |
| 188 | # |
| 189 | f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 |
| 190 | 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 |
| 191 | f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-::0:0 |
| 192 | f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp::0:0 |
| 193 | f:2:POP_FRAME:void:pop_frame:void:-::0:0 |
| 194 | # |
| 195 | # I wish that these would just go away.... |
| 196 | f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x::0:0 |
| 197 | f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x::0:0 |
| 198 | f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x::0:0 |
| 199 | f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x::0:0 |
| 200 | f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x::0:0 |
| 201 | f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x::0:0 |
| 202 | # |
| 203 | f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp::0:0 |
| 204 | f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf::0:0 |
| 205 | f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf::0:0 |
| 206 | f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::0:0 |
| 207 | # |
| 208 | f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0 |
| 209 | f:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame::0:0 |
| 210 | # |
| 211 | f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 |
| 212 | f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 |
| 213 | f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:0 |
| 214 | f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint:0 |
| 215 | f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint:0 |
| 216 | v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 |
| 217 | v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1 |
| 218 | # |
| 219 | 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 |
| 220 | # |
| 221 | v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1 |
| 222 | f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi::0:0 |
| 223 | f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 |
| 224 | f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 |
| 225 | f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 |
| 226 | f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 |
| 227 | f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 |
| 228 | f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 |
| 229 | f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 |
| 230 | # |
| 231 | EOF |
| 232 | grep -v '^#' |
| 233 | } |
| 234 | |
| 235 | |
| 236 | # dump it out |
| 237 | if true |
| 238 | then |
| 239 | exec > new-gdbarch |
| 240 | function_list | while eval read $read |
| 241 | do |
| 242 | cat <<EOF |
| 243 | ${class} ${macro}(${actual}) |
| 244 | ${returntype} ${function} ($formal)${attrib} |
| 245 | level=${level} |
| 246 | default=${default} |
| 247 | init=${init} |
| 248 | invalid_p=${invalid_p} |
| 249 | fmt=${fmt} |
| 250 | print=${print} |
| 251 | print_p=${print_p} |
| 252 | description=${description} |
| 253 | EOF |
| 254 | done |
| 255 | exec 1>&2 |
| 256 | fi |
| 257 | |
| 258 | copyright () |
| 259 | { |
| 260 | cat <<EOF |
| 261 | /* Dynamic architecture support for GDB, the GNU debugger. |
| 262 | Copyright 1998-1999, Free Software Foundation, Inc. |
| 263 | |
| 264 | This file is part of GDB. |
| 265 | |
| 266 | This program is free software; you can redistribute it and/or modify |
| 267 | it under the terms of the GNU General Public License as published by |
| 268 | the Free Software Foundation; either version 2 of the License, or |
| 269 | (at your option) any later version. |
| 270 | |
| 271 | This program is distributed in the hope that it will be useful, |
| 272 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 273 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 274 | GNU General Public License for more details. |
| 275 | |
| 276 | You should have received a copy of the GNU General Public License |
| 277 | along with this program; if not, write to the Free Software |
| 278 | Foundation, Inc., 59 Temple Place - Suite 330, |
| 279 | Boston, MA 02111-1307, USA. */ |
| 280 | |
| 281 | /* *INDENT-OFF* */ /* \`\`typedef (f)();'' confuses indent */ |
| 282 | |
| 283 | /* This file was created with the aid of \`\`gdbarch.sh''. |
| 284 | |
| 285 | The bourn shell script \`\`gdbarch.sh'' creates the files |
| 286 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| 287 | against the existing \`\`gdbarch.[hc]''. Any differences found |
| 288 | being reported. |
| 289 | |
| 290 | If editing this file, please also run gdbarch.sh and merge any |
| 291 | changes into that script. Conversely, when makeing sweeping changes |
| 292 | to this file, modifying gdbarch.sh and using its output may prove |
| 293 | easier. */ |
| 294 | |
| 295 | EOF |
| 296 | } |
| 297 | |
| 298 | # |
| 299 | # The .h file |
| 300 | # |
| 301 | |
| 302 | exec > new-gdbarch.h |
| 303 | copyright |
| 304 | cat <<EOF |
| 305 | #ifndef GDBARCH_H |
| 306 | #define GDBARCH_H |
| 307 | |
| 308 | struct frame_info; |
| 309 | struct value; |
| 310 | |
| 311 | |
| 312 | #ifndef GDB_MULTI_ARCH |
| 313 | #define GDB_MULTI_ARCH 0 |
| 314 | #endif |
| 315 | |
| 316 | extern struct gdbarch *current_gdbarch; |
| 317 | |
| 318 | |
| 319 | /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH |
| 320 | macro */ |
| 321 | |
| 322 | |
| 323 | /* If any of the following are defined, the target wasn't correctly |
| 324 | converted. */ |
| 325 | |
| 326 | #if GDB_MULTI_ARCH |
| 327 | #if defined (CALL_DUMMY) |
| 328 | #error "CALL_DUMMY: replaced by CALL_DUMMY_WORDS/SIZEOF_CALL_DUMMY_WORDS" |
| 329 | #endif |
| 330 | #endif |
| 331 | |
| 332 | #if GDB_MULTI_ARCH |
| 333 | #if defined (REGISTER_NAMES) |
| 334 | #error "REGISTER_NAMES: replaced by REGISTER_NAME" |
| 335 | #endif |
| 336 | #endif |
| 337 | |
| 338 | #if GDB_MULTI_ARCH |
| 339 | #if defined (EXTRA_FRAME_INFO) |
| 340 | #error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info" |
| 341 | #endif |
| 342 | #endif |
| 343 | |
| 344 | #if GDB_MULTI_ARCH |
| 345 | #if defined (FRAME_FIND_SAVED_REGS) |
| 346 | #error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS" |
| 347 | #endif |
| 348 | #endif |
| 349 | EOF |
| 350 | |
| 351 | # function typedef's |
| 352 | echo "" |
| 353 | echo "" |
| 354 | echo "/* The following are pre-initialized by GDBARCH. */" |
| 355 | function_list | while eval read $read |
| 356 | do |
| 357 | case "${class}" in |
| 358 | "i" ) |
| 359 | echo "" |
| 360 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 361 | echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */" |
| 362 | echo "#if GDB_MULTI_ARCH" |
| 363 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 364 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 365 | echo "#endif" |
| 366 | echo "#endif" |
| 367 | ;; |
| 368 | esac |
| 369 | done |
| 370 | |
| 371 | # function typedef's |
| 372 | echo "" |
| 373 | echo "" |
| 374 | echo "/* The following are initialized by the target dependant code. */" |
| 375 | function_list | while eval read $read |
| 376 | do |
| 377 | case "${class}" in |
| 378 | "v" ) |
| 379 | echo "" |
| 380 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 381 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});" |
| 382 | echo "#if GDB_MULTI_ARCH" |
| 383 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 384 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 385 | echo "#endif" |
| 386 | echo "#endif" |
| 387 | ;; |
| 388 | "f" ) |
| 389 | echo "" |
| 390 | echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});" |
| 391 | if [ "${formal}" = "void" ] |
| 392 | then |
| 393 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| 394 | else |
| 395 | echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});" |
| 396 | fi |
| 397 | echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});" |
| 398 | echo "#if GDB_MULTI_ARCH" |
| 399 | echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| 400 | if [ "${actual}" = "" ] |
| 401 | then |
| 402 | echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| 403 | elif [ "${actual}" = "-" ] |
| 404 | then |
| 405 | echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| 406 | else |
| 407 | echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| 408 | fi |
| 409 | echo "#endif" |
| 410 | echo "#endif" |
| 411 | ;; |
| 412 | esac |
| 413 | done |
| 414 | |
| 415 | # close it off |
| 416 | cat <<EOF |
| 417 | |
| 418 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| 419 | |
| 420 | |
| 421 | /* Mechanism for co-ordinating the selection of a specific |
| 422 | architecture. |
| 423 | |
| 424 | GDB targets (*-tdep.c) can register an interest in a specific |
| 425 | architecture. Other GDB components can register a need to maintain |
| 426 | per-architecture data. |
| 427 | |
| 428 | The mechanisms below ensures that there is only a loose connection |
| 429 | between the set-architecture command and the various GDB |
| 430 | components. Each component can independantly register their need |
| 431 | to maintain architecture specific data with gdbarch. |
| 432 | |
| 433 | Pragmatics: |
| 434 | |
| 435 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| 436 | didn't scale. |
| 437 | |
| 438 | The more traditional mega-struct containing architecture specific |
| 439 | data for all the various GDB components was also considered. Since |
| 440 | GDB is built from a variable number of (fairly independant) |
| 441 | components it was determined that the global aproach was not |
| 442 | applicable. */ |
| 443 | |
| 444 | |
| 445 | /* Register a new architectural family with GDB. |
| 446 | |
| 447 | Register support for the specified ARCHITECTURE with GDB. When |
| 448 | gdbarch determines that the specified architecture has been |
| 449 | selected, the corresponding INIT function is called. |
| 450 | |
| 451 | -- |
| 452 | |
| 453 | The INIT function takes two parameters: INFO which contains the |
| 454 | information available to gdbarch about the (possibly new) |
| 455 | architecture; ARCHES which is a list of the previously created |
| 456 | \`\`struct gdbarch'' for this architecture. |
| 457 | |
| 458 | The INIT function parameter INFO shall, as far as possible, be |
| 459 | pre-initialized with information obtained from INFO.ABFD or |
| 460 | previously selected architecture (if similar). INIT shall ensure |
| 461 | that the INFO.BYTE_ORDER is non-zero. |
| 462 | |
| 463 | The INIT function shall return any of: NULL - indicating that it |
| 464 | doesn't reconize the selected architecture; an existing \`\`struct |
| 465 | gdbarch'' from the ARCHES list - indicating that the new |
| 466 | architecture is just a synonym for an earlier architecture (see |
| 467 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| 468 | - that describes the selected architecture (see |
| 469 | gdbarch_alloc()). */ |
| 470 | |
| 471 | struct gdbarch_list |
| 472 | { |
| 473 | struct gdbarch *gdbarch; |
| 474 | struct gdbarch_list *next; |
| 475 | }; |
| 476 | |
| 477 | struct gdbarch_info |
| 478 | { |
| 479 | /* Use default: bfd_arch_unknown (ZERO). */ |
| 480 | enum bfd_architecture bfd_architecture; |
| 481 | |
| 482 | /* Use default: NULL (ZERO). */ |
| 483 | const struct bfd_arch_info *bfd_arch_info; |
| 484 | |
| 485 | /* Use default: 0 (ZERO). */ |
| 486 | int byte_order; |
| 487 | |
| 488 | /* Use default: NULL (ZERO). */ |
| 489 | bfd *abfd; |
| 490 | |
| 491 | /* Use default: NULL (ZERO). */ |
| 492 | struct gdbarch_tdep_info *tdep_info; |
| 493 | }; |
| 494 | |
| 495 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| 496 | |
| 497 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| 498 | |
| 499 | |
| 500 | /* Helper function. Search the list of ARCHES for a GDBARCH that |
| 501 | matches the information provided by INFO. */ |
| 502 | |
| 503 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| 504 | |
| 505 | |
| 506 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| 507 | basic initialization using values obtained from the INFO andTDEP |
| 508 | parameters. set_gdbarch_*() functions are called to complete the |
| 509 | initialization of the object. */ |
| 510 | |
| 511 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| 512 | |
| 513 | |
| 514 | /* Helper function. Force an update of the current architecture. Used |
| 515 | by legacy targets that have added their own target specific |
| 516 | architecture manipulation commands. |
| 517 | |
| 518 | The INFO parameter shall be fully initialized (\`\`memset (&INFO, |
| 519 | sizeof (info), 0)'' set relevant fields) before gdbarch_update() is |
| 520 | called. gdbarch_update() shall initialize any \`\`default'' fields |
| 521 | using information obtained from the previous architecture or |
| 522 | INFO.ABFD (if specified) before calling the corresponding |
| 523 | architectures INIT function. */ |
| 524 | |
| 525 | extern int gdbarch_update (struct gdbarch_info info); |
| 526 | |
| 527 | |
| 528 | |
| 529 | /* Register per-architecture data-pointer. |
| 530 | |
| 531 | Reserve space for a per-architecture data-pointer. An identifier |
| 532 | for the reserved data-pointer is returned. That identifer should |
| 533 | be saved in a local static. |
| 534 | |
| 535 | When a new architecture is selected, INIT() is called. When a |
| 536 | previous architecture is re-selected, the per-architecture |
| 537 | data-pointer for that previous architecture is restored (INIT() is |
| 538 | not called). |
| 539 | |
| 540 | INIT() shall return the initial value for the per-architecture |
| 541 | data-pointer for the current architecture. |
| 542 | |
| 543 | Multiple registrarants for any architecture are allowed (and |
| 544 | strongly encouraged). */ |
| 545 | |
| 546 | typedef void *(gdbarch_data_ftype) (void); |
| 547 | extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init); |
| 548 | |
| 549 | /* Return the value of the per-architecture data-pointer for the |
| 550 | current architecture. */ |
| 551 | |
| 552 | extern void *gdbarch_data (struct gdbarch_data*); |
| 553 | |
| 554 | |
| 555 | |
| 556 | /* Register per-architecture memory region. |
| 557 | |
| 558 | Provide a memory-region swap mechanism. Per-architecture memory |
| 559 | region are created. These memory regions are swapped whenever the |
| 560 | architecture is changed. For a new architecture, the memory region |
| 561 | is initialized with zero (0) and the INIT function is called. |
| 562 | |
| 563 | Memory regions are swapped / initialized in the order that they are |
| 564 | registered. NULL DATA and/or INIT values can be specified. |
| 565 | |
| 566 | New code should use register_gdbarch_data(). */ |
| 567 | |
| 568 | typedef void (gdbarch_swap_ftype) (void); |
| 569 | extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); |
| 570 | #define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) |
| 571 | |
| 572 | |
| 573 | |
| 574 | /* The target-system-dependant byte order is dynamic */ |
| 575 | |
| 576 | /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness |
| 577 | is selectable at runtime. The user can use the \`\`set endian'' |
| 578 | command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when |
| 579 | target_byte_order should be auto-detected (from the program image |
| 580 | say). */ |
| 581 | |
| 582 | #if GDB_MULTI_ARCH |
| 583 | /* Multi-arch GDB is always bi-endian. */ |
| 584 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 585 | #endif |
| 586 | |
| 587 | #ifndef TARGET_BYTE_ORDER_SELECTABLE_P |
| 588 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE |
| 589 | when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ |
| 590 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 591 | #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| 592 | #else |
| 593 | #define TARGET_BYTE_ORDER_SELECTABLE_P 0 |
| 594 | #endif |
| 595 | #endif |
| 596 | |
| 597 | extern int target_byte_order; |
| 598 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 599 | /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE |
| 600 | and expect defs.h to re-define TARGET_BYTE_ORDER. */ |
| 601 | #undef TARGET_BYTE_ORDER |
| 602 | #endif |
| 603 | #ifndef TARGET_BYTE_ORDER |
| 604 | #define TARGET_BYTE_ORDER (target_byte_order + 0) |
| 605 | #endif |
| 606 | |
| 607 | extern int target_byte_order_auto; |
| 608 | #ifndef TARGET_BYTE_ORDER_AUTO |
| 609 | #define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) |
| 610 | #endif |
| 611 | |
| 612 | |
| 613 | |
| 614 | /* The target-system-dependant BFD architecture is dynamic */ |
| 615 | |
| 616 | extern int target_architecture_auto; |
| 617 | #ifndef TARGET_ARCHITECTURE_AUTO |
| 618 | #define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) |
| 619 | #endif |
| 620 | |
| 621 | extern const struct bfd_arch_info *target_architecture; |
| 622 | #ifndef TARGET_ARCHITECTURE |
| 623 | #define TARGET_ARCHITECTURE (target_architecture + 0) |
| 624 | #endif |
| 625 | |
| 626 | /* Notify the target dependant backend of a change to the selected |
| 627 | architecture. A zero return status indicates that the target did |
| 628 | not like the change. */ |
| 629 | |
| 630 | extern int (*target_architecture_hook) (const struct bfd_arch_info *); |
| 631 | |
| 632 | |
| 633 | |
| 634 | /* The target-system-dependant disassembler is semi-dynamic */ |
| 635 | |
| 636 | #include "dis-asm.h" /* Get defs for disassemble_info */ |
| 637 | |
| 638 | extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, |
| 639 | int len, disassemble_info *info); |
| 640 | |
| 641 | extern void dis_asm_memory_error (int status, bfd_vma memaddr, |
| 642 | disassemble_info *info); |
| 643 | |
| 644 | extern void dis_asm_print_address (bfd_vma addr, |
| 645 | disassemble_info *info); |
| 646 | |
| 647 | extern int (*tm_print_insn) (bfd_vma, disassemble_info*); |
| 648 | extern disassemble_info tm_print_insn_info; |
| 649 | #ifndef TARGET_PRINT_INSN |
| 650 | #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) |
| 651 | #endif |
| 652 | #ifndef TARGET_PRINT_INSN_INFO |
| 653 | #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) |
| 654 | #endif |
| 655 | |
| 656 | |
| 657 | |
| 658 | /* Explicit test for D10V architecture. |
| 659 | USE of these macro's is *STRONGLY* discouraged. */ |
| 660 | |
| 661 | #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v) |
| 662 | #ifndef D10V_MAKE_DADDR |
| 663 | #define D10V_MAKE_DADDR(X) (internal_error ("gdbarch: D10V_MAKE_DADDR"), 0) |
| 664 | #endif |
| 665 | #ifndef D10V_MAKE_IADDR |
| 666 | #define D10V_MAKE_IADDR(X) (internal_error ("gdbarch: D10V_MAKE_IADDR"), 0) |
| 667 | #endif |
| 668 | |
| 669 | |
| 670 | /* Fallback definition of FRAMELESS_FUNCTION_INVOCATION */ |
| 671 | #ifndef FRAMELESS_FUNCTION_INVOCATION |
| 672 | #define FRAMELESS_FUNCTION_INVOCATION(FI) (0) |
| 673 | #endif |
| 674 | |
| 675 | |
| 676 | /* Fallback definition of REGISTER_CONVERTIBLE etc */ |
| 677 | extern int generic_register_convertible_not (int reg_nr); |
| 678 | #ifndef REGISTER_CONVERTIBLE |
| 679 | #define REGISTER_CONVERTIBLE(x) (0) |
| 680 | #endif |
| 681 | #ifndef REGISTER_CONVERT_TO_VIRTUAL |
| 682 | #define REGISTER_CONVERT_TO_VIRTUAL(x, y, z, a) |
| 683 | #endif |
| 684 | #ifndef REGISTER_CONVERT_TO_RAW |
| 685 | #define REGISTER_CONVERT_TO_RAW(x, y, z, a) |
| 686 | #endif |
| 687 | |
| 688 | |
| 689 | /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */ |
| 690 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS |
| 691 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0) |
| 692 | #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0) |
| 693 | #else |
| 694 | #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P |
| 695 | #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1) |
| 696 | #endif |
| 697 | #endif |
| 698 | |
| 699 | |
| 700 | /* Fallback definition for REGISTER_NAME for systems still defining |
| 701 | REGISTER_NAMES. */ |
| 702 | #ifndef REGISTER_NAME |
| 703 | extern char *gdb_register_names[]; |
| 704 | #define REGISTER_NAME(i) gdb_register_names[i] |
| 705 | #endif |
| 706 | |
| 707 | |
| 708 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 709 | byte-order, ...) using information found in the BFD */ |
| 710 | |
| 711 | extern void set_gdbarch_from_file (bfd *); |
| 712 | |
| 713 | |
| 714 | /* Explicitly set the dynamic target-system-dependant parameters based |
| 715 | on bfd_architecture and machine. */ |
| 716 | |
| 717 | extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); |
| 718 | |
| 719 | |
| 720 | /* Initialize the current architecture to the "first" one we find on |
| 721 | our list. */ |
| 722 | |
| 723 | extern void initialize_current_architecture (void); |
| 724 | |
| 725 | /* Helper function for targets that don't know how my arguments are |
| 726 | being passed */ |
| 727 | |
| 728 | extern int frame_num_args_unknown (struct frame_info *fi); |
| 729 | |
| 730 | |
| 731 | /* gdbarch trace variable */ |
| 732 | extern int gdbarch_debug; |
| 733 | |
| 734 | extern void gdbarch_dump (void); |
| 735 | |
| 736 | #endif |
| 737 | EOF |
| 738 | exec 1>&2 |
| 739 | #../move-if-change new-gdbarch.h gdbarch.h |
| 740 | if ! test -r gdbarch.h |
| 741 | then |
| 742 | echo "gdbarch.h missing? cp new-gdbarch.h gdbarch.h" 1>&2 |
| 743 | elif diff -c gdbarch.h new-gdbarch.h |
| 744 | then |
| 745 | echo "gdbarch.h unchanged" 1>&2 |
| 746 | else |
| 747 | echo "gdbarch.h has changed? cp new-gdbarch.h gdbarch.h" 1>&2 |
| 748 | fi |
| 749 | |
| 750 | |
| 751 | # |
| 752 | # C file |
| 753 | # |
| 754 | |
| 755 | exec > new-gdbarch.c |
| 756 | copyright |
| 757 | cat <<EOF |
| 758 | |
| 759 | #include "defs.h" |
| 760 | |
| 761 | #if GDB_MULTI_ARCH |
| 762 | #include "gdbcmd.h" |
| 763 | #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ |
| 764 | #else |
| 765 | /* Just include everything in sight so that the every old definition |
| 766 | of macro is visible. */ |
| 767 | #include "gdb_string.h" |
| 768 | #include <ctype.h> |
| 769 | #include "symtab.h" |
| 770 | #include "frame.h" |
| 771 | #include "inferior.h" |
| 772 | #include "breakpoint.h" |
| 773 | #include "wait.h" |
| 774 | #include "gdbcore.h" |
| 775 | #include "gdbcmd.h" |
| 776 | #include "target.h" |
| 777 | #include "gdbthread.h" |
| 778 | #include "annotate.h" |
| 779 | #include "symfile.h" /* for overlay functions */ |
| 780 | #endif |
| 781 | #include "symcat.h" |
| 782 | |
| 783 | |
| 784 | /* Static function declarations */ |
| 785 | |
| 786 | static void verify_gdbarch (struct gdbarch *gdbarch); |
| 787 | static void init_gdbarch_data (struct gdbarch *); |
| 788 | static void init_gdbarch_swap (struct gdbarch *); |
| 789 | static void swapout_gdbarch_swap (struct gdbarch *); |
| 790 | static void swapin_gdbarch_swap (struct gdbarch *); |
| 791 | |
| 792 | /* Convenience macro for allocting typesafe memory. */ |
| 793 | |
| 794 | #ifndef XMALLOC |
| 795 | #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) |
| 796 | #endif |
| 797 | |
| 798 | |
| 799 | /* Non-zero if we want to trace architecture code. */ |
| 800 | |
| 801 | #ifndef GDBARCH_DEBUG |
| 802 | #define GDBARCH_DEBUG 0 |
| 803 | #endif |
| 804 | int gdbarch_debug = GDBARCH_DEBUG; |
| 805 | |
| 806 | EOF |
| 807 | |
| 808 | # gdbarch open the gdbarch object |
| 809 | echo "" |
| 810 | echo "/* Maintain the struct gdbarch object */" |
| 811 | echo "" |
| 812 | echo "struct gdbarch" |
| 813 | echo "{" |
| 814 | echo " /* basic architectural information */" |
| 815 | function_list | while eval read $read |
| 816 | do |
| 817 | case "${class}" in |
| 818 | "i" ) echo " ${returntype} ${function};" ;; |
| 819 | esac |
| 820 | done |
| 821 | echo "" |
| 822 | echo " /* target specific vector. */" |
| 823 | echo " struct gdbarch_tdep *tdep;" |
| 824 | echo "" |
| 825 | echo " /* per-architecture data-pointers */" |
| 826 | echo " int nr_data;" |
| 827 | echo " void **data;" |
| 828 | echo "" |
| 829 | echo " /* per-architecture swap-regions */" |
| 830 | echo " struct gdbarch_swap *swap;" |
| 831 | echo "" |
| 832 | cat <<EOF |
| 833 | /* Multi-arch values. |
| 834 | |
| 835 | When extending this structure you must: |
| 836 | |
| 837 | Add the field below. |
| 838 | |
| 839 | Declare set/get functions and define the corresponding |
| 840 | macro in gdbarch.h. |
| 841 | |
| 842 | gdbarch_alloc(): If zero/NULL is not a suitable default, |
| 843 | initialize the new field. |
| 844 | |
| 845 | verify_gdbarch(): Confirm that the target updated the field |
| 846 | correctly. |
| 847 | |
| 848 | gdbarch_dump(): Add a fprintf_unfiltered call to so that the new |
| 849 | field is dumped out |
| 850 | |
| 851 | \`\`default_gdbarch()'': Append an initial value to the static |
| 852 | variable (base values on the host's c-type system). |
| 853 | |
| 854 | get_gdbarch(): Implement the set/get functions (probably using |
| 855 | the macro's as shortcuts). |
| 856 | |
| 857 | */ |
| 858 | |
| 859 | EOF |
| 860 | function_list | while eval read $read |
| 861 | do |
| 862 | case "${class}" in |
| 863 | "v" ) echo " ${returntype} ${function};" ;; |
| 864 | "f" ) echo " gdbarch_${function}_ftype *${function}${attrib};" ;; |
| 865 | esac |
| 866 | done |
| 867 | echo "};" |
| 868 | |
| 869 | # A pre-initialized vector |
| 870 | echo "" |
| 871 | echo "" |
| 872 | cat <<EOF |
| 873 | /* The default architecture uses host values (for want of a better |
| 874 | choice). */ |
| 875 | EOF |
| 876 | echo "" |
| 877 | echo "extern const struct bfd_arch_info bfd_default_arch_struct;" |
| 878 | echo "" |
| 879 | echo "struct gdbarch default_gdbarch = {" |
| 880 | echo " /* basic architecture information */" |
| 881 | function_list | while eval read $read |
| 882 | do |
| 883 | case "${class}" in |
| 884 | "i" ) echo " ${default}," ;; |
| 885 | esac |
| 886 | done |
| 887 | cat <<EOF |
| 888 | /* target specific vector */ |
| 889 | NULL, |
| 890 | /*per-architecture data-pointers and swap regions */ |
| 891 | 0, NULL, NULL, |
| 892 | /* Multi-arch values */ |
| 893 | EOF |
| 894 | function_list | while eval read $read |
| 895 | do |
| 896 | case "${class}" in |
| 897 | "f" | "v" ) echo " ${default}," ;; |
| 898 | esac |
| 899 | done |
| 900 | cat <<EOF |
| 901 | /* default_gdbarch() */ |
| 902 | }; |
| 903 | struct gdbarch *current_gdbarch = &default_gdbarch; |
| 904 | EOF |
| 905 | |
| 906 | # Create a new gdbarch struct |
| 907 | echo "" |
| 908 | echo "" |
| 909 | cat <<EOF |
| 910 | /* Create a new \`\`struct gdbarch'' based in information provided by |
| 911 | \`\`struct gdbarch_info''. */ |
| 912 | EOF |
| 913 | echo "" |
| 914 | cat <<EOF |
| 915 | struct gdbarch * |
| 916 | gdbarch_alloc (const struct gdbarch_info *info, |
| 917 | struct gdbarch_tdep *tdep) |
| 918 | { |
| 919 | struct gdbarch *gdbarch = XMALLOC (struct gdbarch); |
| 920 | memset (gdbarch, 0, sizeof (*gdbarch)); |
| 921 | |
| 922 | gdbarch->tdep = tdep; |
| 923 | EOF |
| 924 | echo "" |
| 925 | function_list | while eval read $read |
| 926 | do |
| 927 | case "${class}" in |
| 928 | "i" ) echo " gdbarch->${function} = info->${function};" |
| 929 | esac |
| 930 | done |
| 931 | echo "" |
| 932 | echo " /* Force the explicit initialization of these. */" |
| 933 | function_list | while eval read $read |
| 934 | do |
| 935 | case "${class}" in |
| 936 | "f" | "v" ) |
| 937 | if [ "${init}" != "" -a "${init}" != "0" ] |
| 938 | then |
| 939 | echo " gdbarch->${function} = ${init};" |
| 940 | fi |
| 941 | ;; |
| 942 | esac |
| 943 | done |
| 944 | cat <<EOF |
| 945 | /* gdbarch_alloc() */ |
| 946 | |
| 947 | return gdbarch; |
| 948 | } |
| 949 | EOF |
| 950 | |
| 951 | # verify a new architecture |
| 952 | echo "" |
| 953 | echo "" |
| 954 | echo "/* Ensure that all values in a GDBARCH are reasonable. */" |
| 955 | echo "" |
| 956 | cat <<EOF |
| 957 | static void |
| 958 | verify_gdbarch (struct gdbarch *gdbarch) |
| 959 | { |
| 960 | /* Only perform sanity checks on a multi-arch target. */ |
| 961 | if (GDB_MULTI_ARCH <= 0) |
| 962 | return; |
| 963 | /* fundamental */ |
| 964 | if (gdbarch->byte_order == 0) |
| 965 | internal_error ("verify_gdbarch: byte-order unset"); |
| 966 | if (gdbarch->bfd_arch_info == NULL) |
| 967 | internal_error ("verify_gdbarch: bfd_arch_info unset"); |
| 968 | /* Check those that need to be defined for the given multi-arch level. */ |
| 969 | EOF |
| 970 | function_list | while eval read $read |
| 971 | do |
| 972 | case "${class}" in |
| 973 | "f" | "v" ) |
| 974 | if [ "${invalid_p}" ] |
| 975 | then |
| 976 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 977 | echo " && (${invalid_p}))" |
| 978 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 979 | elif [ "${init}" ] |
| 980 | then |
| 981 | echo " if ((GDB_MULTI_ARCH >= ${level})" |
| 982 | echo " && (gdbarch->${function} == ${init}))" |
| 983 | echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| 984 | fi |
| 985 | ;; |
| 986 | esac |
| 987 | done |
| 988 | cat <<EOF |
| 989 | } |
| 990 | EOF |
| 991 | |
| 992 | # dump the structure |
| 993 | echo "" |
| 994 | echo "" |
| 995 | echo "/* Print out the details of the current architecture. */" |
| 996 | echo "" |
| 997 | cat <<EOF |
| 998 | void |
| 999 | gdbarch_dump (void) |
| 1000 | { |
| 1001 | EOF |
| 1002 | function_list | while eval read $read |
| 1003 | do |
| 1004 | case "${class}" in |
| 1005 | "f" ) |
| 1006 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1007 | echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\"," |
| 1008 | echo " (long) current_gdbarch->${function}" |
| 1009 | echo " /*${macro} ()*/);" |
| 1010 | ;; |
| 1011 | * ) |
| 1012 | test "${fmt}" || fmt="%ld" |
| 1013 | test "${print}" || print="(long) ${macro}" |
| 1014 | if [ "${print_p}" = "#" ] |
| 1015 | then |
| 1016 | echo "#ifdef ${macro}" |
| 1017 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1018 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1019 | echo " ${print});" |
| 1020 | echo "#endif" |
| 1021 | elif [ "${print_p}" ] |
| 1022 | then |
| 1023 | echo " if (${print_p})" |
| 1024 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1025 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1026 | echo " ${print});" |
| 1027 | else |
| 1028 | echo " fprintf_unfiltered (gdb_stdlog," |
| 1029 | echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| 1030 | echo " ${print});" |
| 1031 | fi |
| 1032 | ;; |
| 1033 | esac |
| 1034 | done |
| 1035 | echo "}" |
| 1036 | |
| 1037 | |
| 1038 | # GET/SET |
| 1039 | echo "" |
| 1040 | cat <<EOF |
| 1041 | struct gdbarch_tdep * |
| 1042 | gdbarch_tdep (struct gdbarch *gdbarch) |
| 1043 | { |
| 1044 | if (gdbarch_debug >= 2) |
| 1045 | /* FIXME: gdb_std??? */ |
| 1046 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n"); |
| 1047 | return gdbarch->tdep; |
| 1048 | } |
| 1049 | EOF |
| 1050 | echo "" |
| 1051 | function_list | while eval read $read |
| 1052 | do |
| 1053 | case "${class}" in |
| 1054 | "f" ) |
| 1055 | echo "" |
| 1056 | echo "${returntype}" |
| 1057 | if [ "${formal}" = "void" ] |
| 1058 | then |
| 1059 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1060 | else |
| 1061 | echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})" |
| 1062 | fi |
| 1063 | echo "{" |
| 1064 | echo " if (gdbarch->${function} == 0)" |
| 1065 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1066 | echo " if (gdbarch_debug >= 2)" |
| 1067 | echo " /* FIXME: gdb_std??? */" |
| 1068 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1069 | test "${actual}" = "-" && actual="" |
| 1070 | if [ "${returntype}" = "void" ] |
| 1071 | then |
| 1072 | echo " gdbarch->${function} (${actual});" |
| 1073 | else |
| 1074 | echo " return gdbarch->${function} (${actual});" |
| 1075 | fi |
| 1076 | echo "}" |
| 1077 | echo "" |
| 1078 | echo "void" |
| 1079 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1080 | echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})" |
| 1081 | echo "{" |
| 1082 | echo " gdbarch->${function} = ${function};" |
| 1083 | echo "}" |
| 1084 | ;; |
| 1085 | "v" ) |
| 1086 | echo "" |
| 1087 | echo "${returntype}" |
| 1088 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1089 | echo "{" |
| 1090 | if [ "${invalid_p}" ] |
| 1091 | then |
| 1092 | echo " if (${invalid_p})" |
| 1093 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1094 | elif [ "${init}" ] |
| 1095 | then |
| 1096 | echo " if (gdbarch->${function} == ${init})" |
| 1097 | echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| 1098 | fi |
| 1099 | echo " if (gdbarch_debug >= 2)" |
| 1100 | echo " /* FIXME: gdb_std??? */" |
| 1101 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1102 | echo " return gdbarch->${function};" |
| 1103 | echo "}" |
| 1104 | echo "" |
| 1105 | echo "void" |
| 1106 | echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| 1107 | echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})" |
| 1108 | echo "{" |
| 1109 | echo " gdbarch->${function} = ${function};" |
| 1110 | echo "}" |
| 1111 | ;; |
| 1112 | "i" ) |
| 1113 | echo "" |
| 1114 | echo "${returntype}" |
| 1115 | echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| 1116 | echo "{" |
| 1117 | echo " if (gdbarch_debug >= 2)" |
| 1118 | echo " /* FIXME: gdb_std??? */" |
| 1119 | echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| 1120 | echo " return gdbarch->${function};" |
| 1121 | echo "}" |
| 1122 | ;; |
| 1123 | esac |
| 1124 | done |
| 1125 | |
| 1126 | # All the trailing guff |
| 1127 | cat <<EOF |
| 1128 | |
| 1129 | |
| 1130 | /* Keep a registrary of per-architecture data-pointers required by GDB |
| 1131 | modules. */ |
| 1132 | |
| 1133 | struct gdbarch_data |
| 1134 | { |
| 1135 | int index; |
| 1136 | }; |
| 1137 | |
| 1138 | struct gdbarch_data_registration |
| 1139 | { |
| 1140 | gdbarch_data_ftype *init; |
| 1141 | struct gdbarch_data *data; |
| 1142 | struct gdbarch_data_registration *next; |
| 1143 | }; |
| 1144 | |
| 1145 | struct gdbarch_data_registrary |
| 1146 | { |
| 1147 | int nr; |
| 1148 | struct gdbarch_data_registration *registrations; |
| 1149 | }; |
| 1150 | |
| 1151 | struct gdbarch_data_registrary gdbarch_data_registrary = |
| 1152 | { |
| 1153 | 0, NULL, |
| 1154 | }; |
| 1155 | |
| 1156 | struct gdbarch_data * |
| 1157 | register_gdbarch_data (gdbarch_data_ftype *init) |
| 1158 | { |
| 1159 | struct gdbarch_data_registration **curr; |
| 1160 | for (curr = &gdbarch_data_registrary.registrations; |
| 1161 | (*curr) != NULL; |
| 1162 | curr = &(*curr)->next); |
| 1163 | (*curr) = XMALLOC (struct gdbarch_data_registration); |
| 1164 | (*curr)->next = NULL; |
| 1165 | (*curr)->init = init; |
| 1166 | (*curr)->data = XMALLOC (struct gdbarch_data); |
| 1167 | (*curr)->data->index = gdbarch_data_registrary.nr++; |
| 1168 | return (*curr)->data; |
| 1169 | } |
| 1170 | |
| 1171 | |
| 1172 | /* Walk through all the registered users initializing each in turn. */ |
| 1173 | |
| 1174 | static void |
| 1175 | init_gdbarch_data (struct gdbarch *gdbarch) |
| 1176 | { |
| 1177 | struct gdbarch_data_registration *rego; |
| 1178 | gdbarch->nr_data = gdbarch_data_registrary.nr + 1; |
| 1179 | gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data); |
| 1180 | for (rego = gdbarch_data_registrary.registrations; |
| 1181 | rego != NULL; |
| 1182 | rego = rego->next) |
| 1183 | { |
| 1184 | if (rego->data->index < gdbarch->nr_data) |
| 1185 | gdbarch->data[rego->data->index] = rego->init (); |
| 1186 | } |
| 1187 | } |
| 1188 | |
| 1189 | |
| 1190 | /* Return the current value of the specified per-architecture |
| 1191 | data-pointer. */ |
| 1192 | |
| 1193 | void * |
| 1194 | gdbarch_data (data) |
| 1195 | struct gdbarch_data *data; |
| 1196 | { |
| 1197 | if (data->index >= current_gdbarch->nr_data) |
| 1198 | internal_error ("gdbarch_data: request for non-existant data."); |
| 1199 | return current_gdbarch->data[data->index]; |
| 1200 | } |
| 1201 | |
| 1202 | |
| 1203 | |
| 1204 | /* Keep a registrary of swaped data required by GDB modules. */ |
| 1205 | |
| 1206 | struct gdbarch_swap |
| 1207 | { |
| 1208 | void *swap; |
| 1209 | struct gdbarch_swap_registration *source; |
| 1210 | struct gdbarch_swap *next; |
| 1211 | }; |
| 1212 | |
| 1213 | struct gdbarch_swap_registration |
| 1214 | { |
| 1215 | void *data; |
| 1216 | unsigned long sizeof_data; |
| 1217 | gdbarch_swap_ftype *init; |
| 1218 | struct gdbarch_swap_registration *next; |
| 1219 | }; |
| 1220 | |
| 1221 | struct gdbarch_swap_registrary |
| 1222 | { |
| 1223 | int nr; |
| 1224 | struct gdbarch_swap_registration *registrations; |
| 1225 | }; |
| 1226 | |
| 1227 | struct gdbarch_swap_registrary gdbarch_swap_registrary = |
| 1228 | { |
| 1229 | 0, NULL, |
| 1230 | }; |
| 1231 | |
| 1232 | void |
| 1233 | register_gdbarch_swap (void *data, |
| 1234 | unsigned long sizeof_data, |
| 1235 | gdbarch_swap_ftype *init) |
| 1236 | { |
| 1237 | struct gdbarch_swap_registration **rego; |
| 1238 | for (rego = &gdbarch_swap_registrary.registrations; |
| 1239 | (*rego) != NULL; |
| 1240 | rego = &(*rego)->next); |
| 1241 | (*rego) = XMALLOC (struct gdbarch_swap_registration); |
| 1242 | (*rego)->next = NULL; |
| 1243 | (*rego)->init = init; |
| 1244 | (*rego)->data = data; |
| 1245 | (*rego)->sizeof_data = sizeof_data; |
| 1246 | } |
| 1247 | |
| 1248 | |
| 1249 | static void |
| 1250 | init_gdbarch_swap (struct gdbarch *gdbarch) |
| 1251 | { |
| 1252 | struct gdbarch_swap_registration *rego; |
| 1253 | struct gdbarch_swap **curr = &gdbarch->swap; |
| 1254 | for (rego = gdbarch_swap_registrary.registrations; |
| 1255 | rego != NULL; |
| 1256 | rego = rego->next) |
| 1257 | { |
| 1258 | if (rego->data != NULL) |
| 1259 | { |
| 1260 | (*curr) = XMALLOC (struct gdbarch_swap); |
| 1261 | (*curr)->source = rego; |
| 1262 | (*curr)->swap = xmalloc (rego->sizeof_data); |
| 1263 | (*curr)->next = NULL; |
| 1264 | memset (rego->data, 0, rego->sizeof_data); |
| 1265 | curr = &(*curr)->next; |
| 1266 | } |
| 1267 | if (rego->init != NULL) |
| 1268 | rego->init (); |
| 1269 | } |
| 1270 | } |
| 1271 | |
| 1272 | static void |
| 1273 | swapout_gdbarch_swap (struct gdbarch *gdbarch) |
| 1274 | { |
| 1275 | struct gdbarch_swap *curr; |
| 1276 | for (curr = gdbarch->swap; |
| 1277 | curr != NULL; |
| 1278 | curr = curr->next) |
| 1279 | memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); |
| 1280 | } |
| 1281 | |
| 1282 | static void |
| 1283 | swapin_gdbarch_swap (struct gdbarch *gdbarch) |
| 1284 | { |
| 1285 | struct gdbarch_swap *curr; |
| 1286 | for (curr = gdbarch->swap; |
| 1287 | curr != NULL; |
| 1288 | curr = curr->next) |
| 1289 | memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); |
| 1290 | } |
| 1291 | |
| 1292 | |
| 1293 | /* Keep a registrary of the architectures known by GDB. */ |
| 1294 | |
| 1295 | struct gdbarch_init_registration |
| 1296 | { |
| 1297 | enum bfd_architecture bfd_architecture; |
| 1298 | gdbarch_init_ftype *init; |
| 1299 | struct gdbarch_list *arches; |
| 1300 | struct gdbarch_init_registration *next; |
| 1301 | }; |
| 1302 | |
| 1303 | static struct gdbarch_init_registration *gdbarch_init_registrary = NULL; |
| 1304 | |
| 1305 | void |
| 1306 | register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| 1307 | gdbarch_init_ftype *init) |
| 1308 | { |
| 1309 | struct gdbarch_init_registration **curr; |
| 1310 | const struct bfd_arch_info *bfd_arch_info; |
| 1311 | /* Check that BFD reconizes this architecture */ |
| 1312 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| 1313 | if (bfd_arch_info == NULL) |
| 1314 | { |
| 1315 | internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); |
| 1316 | } |
| 1317 | /* Check that we haven't seen this architecture before */ |
| 1318 | for (curr = &gdbarch_init_registrary; |
| 1319 | (*curr) != NULL; |
| 1320 | curr = &(*curr)->next) |
| 1321 | { |
| 1322 | if (bfd_architecture == (*curr)->bfd_architecture) |
| 1323 | internal_error ("gdbarch: Duplicate registraration of architecture (%s)", |
| 1324 | bfd_arch_info->printable_name); |
| 1325 | } |
| 1326 | /* log it */ |
| 1327 | if (gdbarch_debug) |
| 1328 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", |
| 1329 | bfd_arch_info->printable_name, |
| 1330 | (long) init); |
| 1331 | /* Append it */ |
| 1332 | (*curr) = XMALLOC (struct gdbarch_init_registration); |
| 1333 | (*curr)->bfd_architecture = bfd_architecture; |
| 1334 | (*curr)->init = init; |
| 1335 | (*curr)->arches = NULL; |
| 1336 | (*curr)->next = NULL; |
| 1337 | } |
| 1338 | |
| 1339 | |
| 1340 | |
| 1341 | /* Look for an architecture using gdbarch_info. Base search on only |
| 1342 | BFD_ARCH_INFO and BYTE_ORDER. */ |
| 1343 | |
| 1344 | struct gdbarch_list * |
| 1345 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, |
| 1346 | const struct gdbarch_info *info) |
| 1347 | { |
| 1348 | for (; arches != NULL; arches = arches->next) |
| 1349 | { |
| 1350 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) |
| 1351 | continue; |
| 1352 | if (info->byte_order != arches->gdbarch->byte_order) |
| 1353 | continue; |
| 1354 | return arches; |
| 1355 | } |
| 1356 | return NULL; |
| 1357 | } |
| 1358 | |
| 1359 | |
| 1360 | /* Update the current architecture. Return ZERO if the update request |
| 1361 | failed. */ |
| 1362 | |
| 1363 | int |
| 1364 | gdbarch_update (struct gdbarch_info info) |
| 1365 | { |
| 1366 | struct gdbarch *new_gdbarch; |
| 1367 | struct gdbarch_list **list; |
| 1368 | struct gdbarch_init_registration *rego; |
| 1369 | |
| 1370 | /* Fill in any missing bits. Most important is the bfd_architecture |
| 1371 | which is used to select the target architecture. */ |
| 1372 | if (info.bfd_architecture == bfd_arch_unknown) |
| 1373 | { |
| 1374 | if (info.bfd_arch_info != NULL) |
| 1375 | info.bfd_architecture = info.bfd_arch_info->arch; |
| 1376 | else if (info.abfd != NULL) |
| 1377 | info.bfd_architecture = bfd_get_arch (info.abfd); |
| 1378 | /* FIXME - should query BFD for its default architecture. */ |
| 1379 | else |
| 1380 | info.bfd_architecture = current_gdbarch->bfd_arch_info->arch; |
| 1381 | } |
| 1382 | if (info.bfd_arch_info == NULL) |
| 1383 | { |
| 1384 | if (target_architecture_auto && info.abfd != NULL) |
| 1385 | info.bfd_arch_info = bfd_get_arch_info (info.abfd); |
| 1386 | else |
| 1387 | info.bfd_arch_info = current_gdbarch->bfd_arch_info; |
| 1388 | } |
| 1389 | if (info.byte_order == 0) |
| 1390 | { |
| 1391 | if (target_byte_order_auto && info.abfd != NULL) |
| 1392 | info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN |
| 1393 | : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN |
| 1394 | : 0); |
| 1395 | else |
| 1396 | info.byte_order = current_gdbarch->byte_order; |
| 1397 | /* FIXME - should query BFD for its default byte-order. */ |
| 1398 | } |
| 1399 | /* A default for abfd? */ |
| 1400 | |
| 1401 | /* Find the target that knows about this architecture. */ |
| 1402 | for (rego = gdbarch_init_registrary; |
| 1403 | rego != NULL && rego->bfd_architecture != info.bfd_architecture; |
| 1404 | rego = rego->next); |
| 1405 | if (rego == NULL) |
| 1406 | { |
| 1407 | if (gdbarch_debug) |
| 1408 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n"); |
| 1409 | return 0; |
| 1410 | } |
| 1411 | |
| 1412 | if (gdbarch_debug) |
| 1413 | { |
| 1414 | fprintf_unfiltered (gdb_stdlog, |
| 1415 | "gdbarch_update: info.bfd_architecture %d (%s)\n", |
| 1416 | info.bfd_architecture, |
| 1417 | bfd_lookup_arch (info.bfd_architecture, 0)->printable_name); |
| 1418 | fprintf_unfiltered (gdb_stdlog, |
| 1419 | "gdbarch_update: info.bfd_arch_info %s\n", |
| 1420 | (info.bfd_arch_info != NULL |
| 1421 | ? info.bfd_arch_info->printable_name |
| 1422 | : "(null)")); |
| 1423 | fprintf_unfiltered (gdb_stdlog, |
| 1424 | "gdbarch_update: info.byte_order %d (%s)\n", |
| 1425 | info.byte_order, |
| 1426 | (info.byte_order == BIG_ENDIAN ? "big" |
| 1427 | : info.byte_order == LITTLE_ENDIAN ? "little" |
| 1428 | : "default")); |
| 1429 | fprintf_unfiltered (gdb_stdlog, |
| 1430 | "gdbarch_update: info.abfd 0x%lx\n", |
| 1431 | (long) info.abfd); |
| 1432 | fprintf_unfiltered (gdb_stdlog, |
| 1433 | "gdbarch_update: info.tdep_info 0x%lx\n", |
| 1434 | (long) info.tdep_info); |
| 1435 | } |
| 1436 | |
| 1437 | /* Ask the target for a replacement architecture. */ |
| 1438 | new_gdbarch = rego->init (info, rego->arches); |
| 1439 | |
| 1440 | /* Did the target like it? No. Reject the change. */ |
| 1441 | if (new_gdbarch == NULL) |
| 1442 | { |
| 1443 | if (gdbarch_debug) |
| 1444 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\n"); |
| 1445 | return 0; |
| 1446 | } |
| 1447 | |
| 1448 | /* Did the architecture change? No. Do nothing. */ |
| 1449 | if (current_gdbarch == new_gdbarch) |
| 1450 | { |
| 1451 | if (gdbarch_debug) |
| 1452 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\n", |
| 1453 | (long) new_gdbarch, |
| 1454 | new_gdbarch->bfd_arch_info->printable_name); |
| 1455 | return 1; |
| 1456 | } |
| 1457 | |
| 1458 | /* Swap all data belonging to the old target out */ |
| 1459 | swapout_gdbarch_swap (current_gdbarch); |
| 1460 | |
| 1461 | /* Is this a pre-existing architecture? Yes. Swap it in. */ |
| 1462 | for (list = ®o->arches; |
| 1463 | (*list) != NULL; |
| 1464 | list = &(*list)->next) |
| 1465 | { |
| 1466 | if ((*list)->gdbarch == new_gdbarch) |
| 1467 | { |
| 1468 | if (gdbarch_debug) |
| 1469 | fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\n", |
| 1470 | (long) new_gdbarch, |
| 1471 | new_gdbarch->bfd_arch_info->printable_name); |
| 1472 | current_gdbarch = new_gdbarch; |
| 1473 | swapin_gdbarch_swap (new_gdbarch); |
| 1474 | return 1; |
| 1475 | } |
| 1476 | } |
| 1477 | |
| 1478 | /* Append this new architecture to this targets list. */ |
| 1479 | (*list) = XMALLOC (struct gdbarch_list); |
| 1480 | (*list)->next = NULL; |
| 1481 | (*list)->gdbarch = new_gdbarch; |
| 1482 | |
| 1483 | /* Switch to this new architecture. Dump it out. */ |
| 1484 | current_gdbarch = new_gdbarch; |
| 1485 | if (gdbarch_debug) |
| 1486 | { |
| 1487 | fprintf_unfiltered (gdb_stdlog, |
| 1488 | "gdbarch_update: New architecture 0x%08lx (%s) selected\n", |
| 1489 | (long) new_gdbarch, |
| 1490 | new_gdbarch->bfd_arch_info->printable_name); |
| 1491 | gdbarch_dump (); |
| 1492 | } |
| 1493 | |
| 1494 | /* Check that the newly installed architecture is valid. */ |
| 1495 | verify_gdbarch (new_gdbarch); |
| 1496 | |
| 1497 | /* Initialize the per-architecture memory (swap) areas. |
| 1498 | CURRENT_GDBARCH must be update before these modules are |
| 1499 | called. */ |
| 1500 | init_gdbarch_swap (new_gdbarch); |
| 1501 | |
| 1502 | /* Initialize the per-architecture data-pointer of all parties that |
| 1503 | registered an interest in this architecture. CURRENT_GDBARCH |
| 1504 | must be updated before these modules are called. */ |
| 1505 | init_gdbarch_data (new_gdbarch); |
| 1506 | |
| 1507 | return 1; |
| 1508 | } |
| 1509 | |
| 1510 | |
| 1511 | |
| 1512 | /* Functions to manipulate the endianness of the target. */ |
| 1513 | |
| 1514 | #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| 1515 | /* compat - Catch old targets that expect a selectable byte-order to |
| 1516 | default to BIG_ENDIAN */ |
| 1517 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1518 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN |
| 1519 | #endif |
| 1520 | #endif |
| 1521 | #if !TARGET_BYTE_ORDER_SELECTABLE_P |
| 1522 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1523 | /* compat - Catch old non byte-order selectable targets that do not |
| 1524 | define TARGET_BYTE_ORDER_DEFAULT and instead expect |
| 1525 | TARGET_BYTE_ORDER to be used as the default. For targets that |
| 1526 | defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the |
| 1527 | below will get a strange compiler warning. */ |
| 1528 | #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER |
| 1529 | #endif |
| 1530 | #endif |
| 1531 | #ifndef TARGET_BYTE_ORDER_DEFAULT |
| 1532 | #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */ |
| 1533 | #endif |
| 1534 | int target_byte_order = TARGET_BYTE_ORDER_DEFAULT; |
| 1535 | int target_byte_order_auto = 1; |
| 1536 | |
| 1537 | /* Chain containing the \"set endian\" commands. */ |
| 1538 | static struct cmd_list_element *endianlist = NULL; |
| 1539 | |
| 1540 | /* Called by \`\`show endian''. */ |
| 1541 | static void |
| 1542 | show_endian (char *args, int from_tty) |
| 1543 | { |
| 1544 | char *msg = |
| 1545 | (TARGET_BYTE_ORDER_AUTO |
| 1546 | ? "The target endianness is set automatically (currently %s endian)\n" |
| 1547 | : "The target is assumed to be %s endian\n"); |
| 1548 | printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little")); |
| 1549 | } |
| 1550 | |
| 1551 | /* Called if the user enters \`\`set endian'' without an argument. */ |
| 1552 | static void |
| 1553 | set_endian (char *args, int from_tty) |
| 1554 | { |
| 1555 | printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n"); |
| 1556 | show_endian (args, from_tty); |
| 1557 | } |
| 1558 | |
| 1559 | /* Called by \`\`set endian big''. */ |
| 1560 | static void |
| 1561 | set_endian_big (char *args, int from_tty) |
| 1562 | { |
| 1563 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1564 | { |
| 1565 | target_byte_order = BIG_ENDIAN; |
| 1566 | target_byte_order_auto = 0; |
| 1567 | if (GDB_MULTI_ARCH) |
| 1568 | { |
| 1569 | struct gdbarch_info info; |
| 1570 | memset (&info, 0, sizeof info); |
| 1571 | info.byte_order = BIG_ENDIAN; |
| 1572 | gdbarch_update (info); |
| 1573 | } |
| 1574 | } |
| 1575 | else |
| 1576 | { |
| 1577 | printf_unfiltered ("Byte order is not selectable."); |
| 1578 | show_endian (args, from_tty); |
| 1579 | } |
| 1580 | } |
| 1581 | |
| 1582 | /* Called by \`\`set endian little''. */ |
| 1583 | static void |
| 1584 | set_endian_little (char *args, int from_tty) |
| 1585 | { |
| 1586 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1587 | { |
| 1588 | target_byte_order = LITTLE_ENDIAN; |
| 1589 | target_byte_order_auto = 0; |
| 1590 | if (GDB_MULTI_ARCH) |
| 1591 | { |
| 1592 | struct gdbarch_info info; |
| 1593 | memset (&info, 0, sizeof info); |
| 1594 | info.byte_order = LITTLE_ENDIAN; |
| 1595 | gdbarch_update (info); |
| 1596 | } |
| 1597 | } |
| 1598 | else |
| 1599 | { |
| 1600 | printf_unfiltered ("Byte order is not selectable."); |
| 1601 | show_endian (args, from_tty); |
| 1602 | } |
| 1603 | } |
| 1604 | |
| 1605 | /* Called by \`\`set endian auto''. */ |
| 1606 | static void |
| 1607 | set_endian_auto (char *args, int from_tty) |
| 1608 | { |
| 1609 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1610 | { |
| 1611 | target_byte_order_auto = 1; |
| 1612 | } |
| 1613 | else |
| 1614 | { |
| 1615 | printf_unfiltered ("Byte order is not selectable."); |
| 1616 | show_endian (args, from_tty); |
| 1617 | } |
| 1618 | } |
| 1619 | |
| 1620 | /* Set the endianness from a BFD. */ |
| 1621 | static void |
| 1622 | set_endian_from_file (bfd *abfd) |
| 1623 | { |
| 1624 | if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| 1625 | { |
| 1626 | int want; |
| 1627 | |
| 1628 | if (bfd_big_endian (abfd)) |
| 1629 | want = BIG_ENDIAN; |
| 1630 | else |
| 1631 | want = LITTLE_ENDIAN; |
| 1632 | if (TARGET_BYTE_ORDER_AUTO) |
| 1633 | target_byte_order = want; |
| 1634 | else if (TARGET_BYTE_ORDER != want) |
| 1635 | warning ("%s endian file does not match %s endian target.", |
| 1636 | want == BIG_ENDIAN ? "big" : "little", |
| 1637 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1638 | } |
| 1639 | else |
| 1640 | { |
| 1641 | if (bfd_big_endian (abfd) |
| 1642 | ? TARGET_BYTE_ORDER != BIG_ENDIAN |
| 1643 | : TARGET_BYTE_ORDER == BIG_ENDIAN) |
| 1644 | warning ("%s endian file does not match %s endian target.", |
| 1645 | bfd_big_endian (abfd) ? "big" : "little", |
| 1646 | TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| 1647 | } |
| 1648 | } |
| 1649 | |
| 1650 | |
| 1651 | |
| 1652 | /* Functions to manipulate the architecture of the target */ |
| 1653 | |
| 1654 | enum set_arch { set_arch_auto, set_arch_manual }; |
| 1655 | |
| 1656 | int target_architecture_auto = 1; |
| 1657 | extern const struct bfd_arch_info bfd_default_arch_struct; |
| 1658 | const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct; |
| 1659 | int (*target_architecture_hook) (const struct bfd_arch_info *ap); |
| 1660 | |
| 1661 | static void show_endian (char *, int); |
| 1662 | static void set_endian (char *, int); |
| 1663 | static void set_endian_big (char *, int); |
| 1664 | static void set_endian_little (char *, int); |
| 1665 | static void set_endian_auto (char *, int); |
| 1666 | static void set_endian_from_file (bfd *); |
| 1667 | static int arch_ok (const struct bfd_arch_info *arch); |
| 1668 | static void set_arch (const struct bfd_arch_info *arch, enum set_arch type); |
| 1669 | static void show_architecture (char *, int); |
| 1670 | static void set_architecture (char *, int); |
| 1671 | static void info_architecture (char *, int); |
| 1672 | static void set_architecture_from_file (bfd *); |
| 1673 | |
| 1674 | /* Do the real work of changing the current architecture */ |
| 1675 | |
| 1676 | static int |
| 1677 | arch_ok (const struct bfd_arch_info *arch) |
| 1678 | { |
| 1679 | /* Should be performing the more basic check that the binary is |
| 1680 | compatible with GDB. */ |
| 1681 | /* Check with the target that the architecture is valid. */ |
| 1682 | return (target_architecture_hook == NULL |
| 1683 | || target_architecture_hook (arch)); |
| 1684 | } |
| 1685 | |
| 1686 | static void |
| 1687 | set_arch (const struct bfd_arch_info *arch, |
| 1688 | enum set_arch type) |
| 1689 | { |
| 1690 | switch (type) |
| 1691 | { |
| 1692 | case set_arch_auto: |
| 1693 | if (!arch_ok (arch)) |
| 1694 | warning ("Target may not support %s architecture", |
| 1695 | arch->printable_name); |
| 1696 | target_architecture = arch; |
| 1697 | break; |
| 1698 | case set_arch_manual: |
| 1699 | if (!arch_ok (arch)) |
| 1700 | { |
| 1701 | printf_unfiltered ("Target does not support \`%s' architecture.\n", |
| 1702 | arch->printable_name); |
| 1703 | } |
| 1704 | else |
| 1705 | { |
| 1706 | target_architecture_auto = 0; |
| 1707 | target_architecture = arch; |
| 1708 | } |
| 1709 | break; |
| 1710 | } |
| 1711 | if (gdbarch_debug) |
| 1712 | gdbarch_dump (); |
| 1713 | } |
| 1714 | |
| 1715 | /* Called if the user enters \`\`show architecture'' without an argument. */ |
| 1716 | static void |
| 1717 | show_architecture (char *args, int from_tty) |
| 1718 | { |
| 1719 | const char *arch; |
| 1720 | arch = TARGET_ARCHITECTURE->printable_name; |
| 1721 | if (target_architecture_auto) |
| 1722 | printf_filtered ("The target architecture is set automatically (currently %s)\n", arch); |
| 1723 | else |
| 1724 | printf_filtered ("The target architecture is assumed to be %s\n", arch); |
| 1725 | } |
| 1726 | |
| 1727 | /* Called if the user enters \`\`set architecture'' with or without an |
| 1728 | argument. */ |
| 1729 | static void |
| 1730 | set_architecture (char *args, int from_tty) |
| 1731 | { |
| 1732 | if (args == NULL) |
| 1733 | { |
| 1734 | printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n"); |
| 1735 | } |
| 1736 | else if (strcmp (args, "auto") == 0) |
| 1737 | { |
| 1738 | target_architecture_auto = 1; |
| 1739 | } |
| 1740 | else if (GDB_MULTI_ARCH) |
| 1741 | { |
| 1742 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1743 | if (arch == NULL) |
| 1744 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1745 | else |
| 1746 | { |
| 1747 | struct gdbarch_info info; |
| 1748 | memset (&info, 0, sizeof info); |
| 1749 | info.bfd_arch_info = arch; |
| 1750 | if (gdbarch_update (info)) |
| 1751 | target_architecture_auto = 0; |
| 1752 | else |
| 1753 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1754 | } |
| 1755 | } |
| 1756 | else |
| 1757 | { |
| 1758 | const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| 1759 | if (arch != NULL) |
| 1760 | set_arch (arch, set_arch_manual); |
| 1761 | else |
| 1762 | printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | /* Called if the user enters \`\`info architecture'' without an argument. */ |
| 1767 | static void |
| 1768 | info_architecture (char *args, int from_tty) |
| 1769 | { |
| 1770 | enum bfd_architecture a; |
| 1771 | if (GDB_MULTI_ARCH) |
| 1772 | { |
| 1773 | if (gdbarch_init_registrary != NULL) |
| 1774 | { |
| 1775 | struct gdbarch_init_registration *rego; |
| 1776 | printf_filtered ("Available architectures are:\n"); |
| 1777 | for (rego = gdbarch_init_registrary; |
| 1778 | rego != NULL; |
| 1779 | rego = rego->next) |
| 1780 | { |
| 1781 | const struct bfd_arch_info *ap; |
| 1782 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 1783 | if (ap != NULL) |
| 1784 | { |
| 1785 | do |
| 1786 | { |
| 1787 | printf_filtered (" %s", ap->printable_name); |
| 1788 | ap = ap->next; |
| 1789 | } |
| 1790 | while (ap != NULL); |
| 1791 | printf_filtered ("\n"); |
| 1792 | } |
| 1793 | } |
| 1794 | } |
| 1795 | else |
| 1796 | { |
| 1797 | printf_filtered ("There are no available architectures.\n"); |
| 1798 | } |
| 1799 | return; |
| 1800 | } |
| 1801 | printf_filtered ("Available architectures are:\n"); |
| 1802 | for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++) |
| 1803 | { |
| 1804 | const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0); |
| 1805 | if (ap != NULL) |
| 1806 | { |
| 1807 | do |
| 1808 | { |
| 1809 | printf_filtered (" %s", ap->printable_name); |
| 1810 | ap = ap->next; |
| 1811 | } |
| 1812 | while (ap != NULL); |
| 1813 | printf_filtered ("\n"); |
| 1814 | } |
| 1815 | } |
| 1816 | } |
| 1817 | |
| 1818 | /* Set the architecture from arch/machine */ |
| 1819 | void |
| 1820 | set_architecture_from_arch_mach (arch, mach) |
| 1821 | enum bfd_architecture arch; |
| 1822 | unsigned long mach; |
| 1823 | { |
| 1824 | const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach); |
| 1825 | if (wanted != NULL) |
| 1826 | set_arch (wanted, set_arch_manual); |
| 1827 | else |
| 1828 | internal_error ("gdbarch: hardwired architecture/machine not reconized"); |
| 1829 | } |
| 1830 | |
| 1831 | /* Set the architecture from a BFD */ |
| 1832 | static void |
| 1833 | set_architecture_from_file (bfd *abfd) |
| 1834 | { |
| 1835 | const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd); |
| 1836 | if (target_architecture_auto) |
| 1837 | { |
| 1838 | set_arch (wanted, set_arch_auto); |
| 1839 | } |
| 1840 | else if (wanted != target_architecture) |
| 1841 | { |
| 1842 | warning ("%s architecture file may be incompatible with %s target.", |
| 1843 | wanted->printable_name, |
| 1844 | target_architecture->printable_name); |
| 1845 | } |
| 1846 | } |
| 1847 | |
| 1848 | |
| 1849 | /* Misc helper functions for targets. */ |
| 1850 | |
| 1851 | int |
| 1852 | frame_num_args_unknown (fi) |
| 1853 | struct frame_info *fi; |
| 1854 | { |
| 1855 | return -1; |
| 1856 | } |
| 1857 | |
| 1858 | |
| 1859 | int |
| 1860 | generic_register_convertible_not (num) |
| 1861 | int num; |
| 1862 | { |
| 1863 | return 0; |
| 1864 | } |
| 1865 | |
| 1866 | /* Disassembler */ |
| 1867 | |
| 1868 | /* Pointer to the target-dependent disassembly function. */ |
| 1869 | int (*tm_print_insn) (bfd_vma, disassemble_info *); |
| 1870 | disassemble_info tm_print_insn_info; |
| 1871 | |
| 1872 | |
| 1873 | |
| 1874 | /* Set the dynamic target-system-dependant parameters (architecture, |
| 1875 | byte-order) using information found in the BFD */ |
| 1876 | |
| 1877 | void |
| 1878 | set_gdbarch_from_file (abfd) |
| 1879 | bfd *abfd; |
| 1880 | { |
| 1881 | if (GDB_MULTI_ARCH) |
| 1882 | { |
| 1883 | struct gdbarch_info info; |
| 1884 | memset (&info, 0, sizeof info); |
| 1885 | info.abfd = abfd; |
| 1886 | gdbarch_update (info); |
| 1887 | return; |
| 1888 | } |
| 1889 | set_architecture_from_file (abfd); |
| 1890 | set_endian_from_file (abfd); |
| 1891 | } |
| 1892 | |
| 1893 | |
| 1894 | #if defined (CALL_DUMMY) |
| 1895 | /* FIXME - this should go away */ |
| 1896 | LONGEST call_dummy_words[] = CALL_DUMMY; |
| 1897 | int sizeof_call_dummy_words = sizeof (call_dummy_words); |
| 1898 | #endif |
| 1899 | |
| 1900 | |
| 1901 | /* Initialize the current architecture. */ |
| 1902 | void |
| 1903 | initialize_current_architecture () |
| 1904 | { |
| 1905 | if (GDB_MULTI_ARCH) |
| 1906 | { |
| 1907 | struct gdbarch_init_registration *rego; |
| 1908 | const struct bfd_arch_info *chosen = NULL; |
| 1909 | for (rego = gdbarch_init_registrary; rego != NULL; rego = rego->next) |
| 1910 | { |
| 1911 | const struct bfd_arch_info *ap |
| 1912 | = bfd_lookup_arch (rego->bfd_architecture, 0); |
| 1913 | |
| 1914 | /* Choose the first architecture alphabetically. */ |
| 1915 | if (chosen == NULL |
| 1916 | || strcmp (ap->printable_name, chosen->printable_name) < 0) |
| 1917 | chosen = ap; |
| 1918 | } |
| 1919 | |
| 1920 | if (chosen != NULL) |
| 1921 | { |
| 1922 | struct gdbarch_info info; |
| 1923 | memset (&info, 0, sizeof info); |
| 1924 | info.bfd_arch_info = chosen; |
| 1925 | gdbarch_update (info); |
| 1926 | } |
| 1927 | } |
| 1928 | } |
| 1929 | |
| 1930 | extern void _initialize_gdbarch (void); |
| 1931 | void |
| 1932 | _initialize_gdbarch () |
| 1933 | { |
| 1934 | add_prefix_cmd ("endian", class_support, set_endian, |
| 1935 | "Set endianness of target.", |
| 1936 | &endianlist, "set endian ", 0, &setlist); |
| 1937 | add_cmd ("big", class_support, set_endian_big, |
| 1938 | "Set target as being big endian.", &endianlist); |
| 1939 | add_cmd ("little", class_support, set_endian_little, |
| 1940 | "Set target as being little endian.", &endianlist); |
| 1941 | add_cmd ("auto", class_support, set_endian_auto, |
| 1942 | "Select target endianness automatically.", &endianlist); |
| 1943 | add_cmd ("endian", class_support, show_endian, |
| 1944 | "Show endianness of target.", &showlist); |
| 1945 | |
| 1946 | add_cmd ("architecture", class_support, set_architecture, |
| 1947 | "Set architecture of target.", &setlist); |
| 1948 | add_alias_cmd ("processor", "architecture", class_support, 1, &setlist); |
| 1949 | add_cmd ("architecture", class_support, show_architecture, |
| 1950 | "Show architecture of target.", &showlist); |
| 1951 | add_cmd ("architecture", class_support, info_architecture, |
| 1952 | "List supported target architectures", &infolist); |
| 1953 | |
| 1954 | INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered); |
| 1955 | tm_print_insn_info.flavour = bfd_target_unknown_flavour; |
| 1956 | tm_print_insn_info.read_memory_func = dis_asm_read_memory; |
| 1957 | tm_print_insn_info.memory_error_func = dis_asm_memory_error; |
| 1958 | tm_print_insn_info.print_address_func = dis_asm_print_address; |
| 1959 | |
| 1960 | add_show_from_set (add_set_cmd ("archdebug", |
| 1961 | class_maintenance, |
| 1962 | var_zinteger, |
| 1963 | (char *)&gdbarch_debug, |
| 1964 | "Set architecture debugging.\n\\ |
| 1965 | When non-zero, architecture debugging is enabled.", &setlist), |
| 1966 | &showlist); |
| 1967 | } |
| 1968 | EOF |
| 1969 | |
| 1970 | # close things off |
| 1971 | exec 1>&2 |
| 1972 | #../move-if-change new-gdbarch.c gdbarch.c |
| 1973 | if ! test -r gdbarch.c |
| 1974 | then |
| 1975 | echo "gdbarch.c missing? cp new-gdbarch.c gdbarch.c" 1>&2 |
| 1976 | elif diff -c gdbarch.c new-gdbarch.c |
| 1977 | then |
| 1978 | echo "gdbarch.c unchanged" 1>&2 |
| 1979 | else |
| 1980 | echo "gdbarch.c has changed? cp new-gdbarch.c gdbarch.c" 1>&2 |
| 1981 | fi |