1#!/bin/sh -u 2 3# Architecture commands for GDB, the GNU debugger. 4# 5# Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software 6# Foundation, Inc. 7# 8# 9# This file is part of GDB. 10# 11# This program is free software; you can redistribute it and/or modify 12# it under the terms of the GNU General Public License as published by 13# the Free Software Foundation; either version 2 of the License, or 14# (at your option) any later version. 15# 16# This program is distributed in the hope that it will be useful, 17# but WITHOUT ANY WARRANTY; without even the implied warranty of 18# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19# GNU General Public License for more details. 20# 21# You should have received a copy of the GNU General Public License 22# along with this program; if not, write to the Free Software 23# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 24 25# Make certain that the script is running in an internationalized 26# environment. 27LANG=c ; export LANG 28LC_ALL=c ; export LC_ALL 29 30 31compare_new () 32{ 33 file=$1 34 if test ! -r ${file} 35 then 36 echo "${file} missing? cp new-${file} ${file}" 1>&2 37 elif diff -u ${file} new-${file} 38 then 39 echo "${file} unchanged" 1>&2 40 else 41 echo "${file} has changed? cp new-${file} ${file}" 1>&2 42 fi 43} 44 45 46# Format of the input table 47read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description" 48 49do_read () 50{ 51 comment="" 52 class="" 53 while read line 54 do 55 if test "${line}" = "" 56 then 57 continue 58 elif test "${line}" = "#" -a "${comment}" = "" 59 then 60 continue 61 elif expr "${line}" : "#" > /dev/null 62 then 63 comment="${comment} 64${line}" 65 else 66 67 # The semantics of IFS varies between different SH's. Some 68 # treat ``::' as three fields while some treat it as just too. 69 # Work around this by eliminating ``::'' .... 70 line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`" 71 72 OFS="${IFS}" ; IFS="[:]" 73 eval read ${read} <<EOF 74${line} 75EOF 76 IFS="${OFS}" 77 78 # .... and then going back through each field and strip out those 79 # that ended up with just that space character. 80 for r in ${read} 81 do 82 if eval test \"\${${r}}\" = \"\ \" 83 then 84 eval ${r}="" 85 fi 86 done 87 88 case "${level}" in 89 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;; 90 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;; 91 "" ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;; 92 * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;; 93 esac 94 95 case "${class}" in 96 m ) staticdefault="${predefault}" ;; 97 M ) staticdefault="0" ;; 98 * ) test "${staticdefault}" || staticdefault=0 ;; 99 esac 100 101 # come up with a format, use a few guesses for variables 102 case ":${class}:${fmt}:${print}:" in 103 :[vV]::: ) 104 if [ "${returntype}" = int ] 105 then 106 fmt="%d" 107 print="${macro}" 108 elif [ "${returntype}" = long ] 109 then 110 fmt="%ld" 111 print="${macro}" 112 fi 113 ;; 114 esac 115 test "${fmt}" || fmt="%ld" 116 test "${print}" || print="(long) ${macro}" 117 118 case "${class}" in 119 F | V | M ) 120 case "${invalid_p}" in 121 "" ) 122 if test -n "${predefault}" 123 then 124 #invalid_p="gdbarch->${function} == ${predefault}" 125 predicate="gdbarch->${function} != ${predefault}" 126 elif class_is_variable_p 127 then 128 predicate="gdbarch->${function} != 0" 129 elif class_is_function_p 130 then 131 predicate="gdbarch->${function} != NULL" 132 fi 133 ;; 134 * ) 135 echo "Predicate function ${function} with invalid_p." 1>&2 136 kill $$ 137 exit 1 138 ;; 139 esac 140 esac 141 142 # PREDEFAULT is a valid fallback definition of MEMBER when 143 # multi-arch is not enabled. This ensures that the 144 # default value, when multi-arch is the same as the 145 # default value when not multi-arch. POSTDEFAULT is 146 # always a valid definition of MEMBER as this again 147 # ensures consistency. 148 149 if [ -n "${postdefault}" ] 150 then 151 fallbackdefault="${postdefault}" 152 elif [ -n "${predefault}" ] 153 then 154 fallbackdefault="${predefault}" 155 else 156 fallbackdefault="0" 157 fi 158 159 #NOT YET: See gdbarch.log for basic verification of 160 # database 161 162 break 163 fi 164 done 165 if [ -n "${class}" ] 166 then 167 true 168 else 169 false 170 fi 171} 172 173 174fallback_default_p () 175{ 176 [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \ 177 || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ] 178} 179 180class_is_variable_p () 181{ 182 case "${class}" in 183 *v* | *V* ) true ;; 184 * ) false ;; 185 esac 186} 187 188class_is_function_p () 189{ 190 case "${class}" in 191 *f* | *F* | *m* | *M* ) true ;; 192 * ) false ;; 193 esac 194} 195 196class_is_multiarch_p () 197{ 198 case "${class}" in 199 *m* | *M* ) true ;; 200 * ) false ;; 201 esac 202} 203 204class_is_predicate_p () 205{ 206 case "${class}" in 207 *F* | *V* | *M* ) true ;; 208 * ) false ;; 209 esac 210} 211 212class_is_info_p () 213{ 214 case "${class}" in 215 *i* ) true ;; 216 * ) false ;; 217 esac 218} 219 220 221# dump out/verify the doco 222for field in ${read} 223do 224 case ${field} in 225 226 class ) : ;; 227 228 # # -> line disable 229 # f -> function 230 # hiding a function 231 # F -> function + predicate 232 # hiding a function + predicate to test function validity 233 # v -> variable 234 # hiding a variable 235 # V -> variable + predicate 236 # hiding a variable + predicate to test variables validity 237 # i -> set from info 238 # hiding something from the ``struct info'' object 239 # m -> multi-arch function 240 # hiding a multi-arch function (parameterised with the architecture) 241 # M -> multi-arch function + predicate 242 # hiding a multi-arch function + predicate to test function validity 243 244 level ) : ;; 245 246 # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= 247 # LEVEL is a predicate on checking that a given method is 248 # initialized (using INVALID_P). 249 250 macro ) : ;; 251 252 # The name of the MACRO that this method is to be accessed by. 253 254 returntype ) : ;; 255 256 # For functions, the return type; for variables, the data type 257 258 function ) : ;; 259 260 # For functions, the member function name; for variables, the 261 # variable name. Member function names are always prefixed with 262 # ``gdbarch_'' for name-space purity. 263 264 formal ) : ;; 265 266 # The formal argument list. It is assumed that the formal 267 # argument list includes the actual name of each list element. 268 # A function with no arguments shall have ``void'' as the 269 # formal argument list. 270 271 actual ) : ;; 272 273 # The list of actual arguments. The arguments specified shall 274 # match the FORMAL list given above. Functions with out 275 # arguments leave this blank. 276 277 attrib ) : ;; 278 279 # Any GCC attributes that should be attached to the function 280 # declaration. At present this field is unused. 281 282 staticdefault ) : ;; 283 284 # To help with the GDB startup a static gdbarch object is 285 # created. STATICDEFAULT is the value to insert into that 286 # static gdbarch object. Since this a static object only 287 # simple expressions can be used. 288 289 # If STATICDEFAULT is empty, zero is used. 290 291 predefault ) : ;; 292 293 # An initial value to assign to MEMBER of the freshly 294 # malloc()ed gdbarch object. After initialization, the 295 # freshly malloc()ed object is passed to the target 296 # architecture code for further updates. 297 298 # If PREDEFAULT is empty, zero is used. 299 300 # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero 301 # INVALID_P are specified, PREDEFAULT will be used as the 302 # default for the non- multi-arch target. 303 304 # A zero PREDEFAULT function will force the fallback to call 305 # internal_error(). 306 307 # Variable declarations can refer to ``gdbarch'' which will 308 # contain the current architecture. Care should be taken. 309 310 postdefault ) : ;; 311 312 # A value to assign to MEMBER of the new gdbarch object should 313 # the target architecture code fail to change the PREDEFAULT 314 # value. 315 316 # If POSTDEFAULT is empty, no post update is performed. 317 318 # If both INVALID_P and POSTDEFAULT are non-empty then 319 # INVALID_P will be used to determine if MEMBER should be 320 # changed to POSTDEFAULT. 321 322 # If a non-empty POSTDEFAULT and a zero INVALID_P are 323 # specified, POSTDEFAULT will be used as the default for the 324 # non- multi-arch target (regardless of the value of 325 # PREDEFAULT). 326 327 # You cannot specify both a zero INVALID_P and a POSTDEFAULT. 328 329 # Variable declarations can refer to ``current_gdbarch'' which 330 # will contain the current architecture. Care should be 331 # taken. 332 333 invalid_p ) : ;; 334 335 # A predicate equation that validates MEMBER. Non-zero is 336 # returned if the code creating the new architecture failed to 337 # initialize MEMBER or the initialized the member is invalid. 338 # If POSTDEFAULT is non-empty then MEMBER will be updated to 339 # that value. If POSTDEFAULT is empty then internal_error() 340 # is called. 341 342 # If INVALID_P is empty, a check that MEMBER is no longer 343 # equal to PREDEFAULT is used. 344 345 # The expression ``0'' disables the INVALID_P check making 346 # PREDEFAULT a legitimate value. 347 348 # See also PREDEFAULT and POSTDEFAULT. 349 350 fmt ) : ;; 351 352 # printf style format string that can be used to print out the 353 # MEMBER. Sometimes "%s" is useful. For functions, this is 354 # ignored and the function address is printed. 355 356 # If FMT is empty, ``%ld'' is used. 357 358 print ) : ;; 359 360 # An optional equation that casts MEMBER to a value suitable 361 # for formatting by FMT. 362 363 # If PRINT is empty, ``(long)'' is used. 364 365 print_p ) : ;; 366 367 # An optional indicator for any predicte to wrap around the 368 # print member code. 369 370 # () -> Call a custom function to do the dump. 371 # exp -> Wrap print up in ``if (${print_p}) ... 372 # ``'' -> No predicate 373 374 # If PRINT_P is empty, ``1'' is always used. 375 376 description ) : ;; 377 378 # Currently unused. 379 380 *) 381 echo "Bad field ${field}" 382 exit 1;; 383 esac 384done 385 386 387function_list () 388{ 389 # See below (DOCO) for description of each field 390 cat <<EOF 391i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->printable_name:TARGET_ARCHITECTURE != NULL 392# 393i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG 394# 395i:2:TARGET_OSABI:enum gdb_osabi:osabi::::GDB_OSABI_UNKNOWN 396# Number of bits in a char or unsigned char for the target machine. 397# Just like CHAR_BIT in <limits.h> but describes the target machine. 398# v:2:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: 399# 400# Number of bits in a short or unsigned short for the target machine. 401v:2:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0 402# Number of bits in an int or unsigned int for the target machine. 403v:2:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0 404# Number of bits in a long or unsigned long for the target machine. 405v:2:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0 406# Number of bits in a long long or unsigned long long for the target 407# machine. 408v:2:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0 409# Number of bits in a float for the target machine. 410v:2:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0 411# Number of bits in a double for the target machine. 412v:2:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0 413# Number of bits in a long double for the target machine. 414v:2:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):8*TARGET_CHAR_BIT::0 415# For most targets, a pointer on the target and its representation as an 416# address in GDB have the same size and "look the same". For such a 417# target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT 418# / addr_bit will be set from it. 419# 420# If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably 421# also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well. 422# 423# ptr_bit is the size of a pointer on the target 424v:2:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0 425# addr_bit is the size of a target address as represented in gdb 426v:2:TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT: 427# Number of bits in a BFD_VMA for the target object file format. 428v:2:TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0 429# 430# One if \`char' acts like \`signed char', zero if \`unsigned char'. 431v:2:TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1:::: 432# 433F:2:TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid 434f:2:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0 435# UNWIND_SP is a direct replacement for TARGET_READ_SP. 436F:2:TARGET_READ_SP:CORE_ADDR:read_sp:void 437# Function for getting target's idea of a frame pointer. FIXME: GDB's 438# whole scheme for dealing with "frames" and "frame pointers" needs a 439# serious shakedown. 440f:2:TARGET_VIRTUAL_FRAME_POINTER:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset::0:legacy_virtual_frame_pointer::0 441# 442M:::void:pseudo_register_read:struct regcache *regcache, int cookednum, void *buf:regcache, cookednum, buf 443M:::void:pseudo_register_write:struct regcache *regcache, int cookednum, const void *buf:regcache, cookednum, buf 444# 445v:2:NUM_REGS:int:num_regs::::0:-1 446# This macro gives the number of pseudo-registers that live in the 447# register namespace but do not get fetched or stored on the target. 448# These pseudo-registers may be aliases for other registers, 449# combinations of other registers, or they may be computed by GDB. 450v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0::: 451 452# GDB's standard (or well known) register numbers. These can map onto 453# a real register or a pseudo (computed) register or not be defined at 454# all (-1). 455# SP_REGNUM will hopefully be replaced by UNWIND_SP. 456v:2:SP_REGNUM:int:sp_regnum::::-1:-1::0 457v:2:PC_REGNUM:int:pc_regnum::::-1:-1::0 458v:2:PS_REGNUM:int:ps_regnum::::-1:-1::0 459v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0 460# Convert stab register number (from \`r\' declaration) to a gdb REGNUM. 461f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0 462# Provide a default mapping from a ecoff register number to a gdb REGNUM. 463f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0 464# Provide a default mapping from a DWARF register number to a gdb REGNUM. 465f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0 466# Convert from an sdb register number to an internal gdb register number. 467f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0 468f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0 469f::REGISTER_NAME:const char *:register_name:int regnr:regnr 470 471# REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE. 472M:2:REGISTER_TYPE:struct type *:register_type:int reg_nr:reg_nr 473# REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE. 474F:2:DEPRECATED_REGISTER_VIRTUAL_TYPE:struct type *:deprecated_register_virtual_type:int reg_nr:reg_nr 475# DEPRECATED_REGISTER_BYTES can be deleted. The value is computed 476# from REGISTER_TYPE. 477v::DEPRECATED_REGISTER_BYTES:int:deprecated_register_bytes 478# If the value returned by DEPRECATED_REGISTER_BYTE agrees with the 479# register offsets computed using just REGISTER_TYPE, this can be 480# deleted. See: maint print registers. NOTE: cagney/2002-05-02: This 481# function with predicate has a valid (callable) initial value. As a 482# consequence, even when the predicate is false, the corresponding 483# function works. This simplifies the migration process - old code, 484# calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified. 485F::DEPRECATED_REGISTER_BYTE:int:deprecated_register_byte:int reg_nr:reg_nr::generic_register_byte:generic_register_byte 486# If all registers have identical raw and virtual sizes and those 487# sizes agree with the value computed from REGISTER_TYPE, 488# DEPRECATED_REGISTER_RAW_SIZE can be deleted. See: maint print 489# registers. 490F:2:DEPRECATED_REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size 491# If all registers have identical raw and virtual sizes and those 492# sizes agree with the value computed from REGISTER_TYPE, 493# DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted. See: maint print 494# registers. 495F:2:DEPRECATED_REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size 496# DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted. It has been 497# replaced by the constant MAX_REGISTER_SIZE. 498V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size 499# DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE can be deleted. It has been 500# replaced by the constant MAX_REGISTER_SIZE. 501V:2:DEPRECATED_MAX_REGISTER_VIRTUAL_SIZE:int:deprecated_max_register_virtual_size 502 503# See gdbint.texinfo, and PUSH_DUMMY_CALL. 504M::UNWIND_DUMMY_ID:struct frame_id:unwind_dummy_id:struct frame_info *info:info 505# Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete 506# SAVE_DUMMY_FRAME_TOS. 507F:2:DEPRECATED_SAVE_DUMMY_FRAME_TOS:void:deprecated_save_dummy_frame_tos:CORE_ADDR sp:sp 508# Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete 509# DEPRECATED_FP_REGNUM. 510v:2:DEPRECATED_FP_REGNUM:int:deprecated_fp_regnum::::-1:-1::0 511# Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete 512# DEPRECATED_TARGET_READ_FP. 513F::DEPRECATED_TARGET_READ_FP:CORE_ADDR:deprecated_target_read_fp:void 514 515# See gdbint.texinfo. See infcall.c. New, all singing all dancing, 516# replacement for DEPRECATED_PUSH_ARGUMENTS. 517M::PUSH_DUMMY_CALL:CORE_ADDR:push_dummy_call:CORE_ADDR func_addr, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:func_addr, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr 518# PUSH_DUMMY_CALL is a direct replacement for DEPRECATED_PUSH_ARGUMENTS. 519F:2:DEPRECATED_PUSH_ARGUMENTS:CORE_ADDR:deprecated_push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr 520# DEPRECATED_USE_GENERIC_DUMMY_FRAMES can be deleted. Always true. 521v::DEPRECATED_USE_GENERIC_DUMMY_FRAMES:int:deprecated_use_generic_dummy_frames:::::1::0 522# Implement PUSH_RETURN_ADDRESS, and then merge in 523# DEPRECATED_PUSH_RETURN_ADDRESS. 524F:2:DEPRECATED_PUSH_RETURN_ADDRESS:CORE_ADDR:deprecated_push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp 525# Implement PUSH_DUMMY_CALL, then merge in DEPRECATED_DUMMY_WRITE_SP. 526F:2:DEPRECATED_DUMMY_WRITE_SP:void:deprecated_dummy_write_sp:CORE_ADDR val:val 527# DEPRECATED_REGISTER_SIZE can be deleted. 528v::DEPRECATED_REGISTER_SIZE:int:deprecated_register_size 529v::CALL_DUMMY_LOCATION:int:call_dummy_location:::::AT_ENTRY_POINT::0 530# DEPRECATED_CALL_DUMMY_START_OFFSET can be deleted. 531v::DEPRECATED_CALL_DUMMY_START_OFFSET:CORE_ADDR:deprecated_call_dummy_start_offset 532# DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET can be deleted. 533v::DEPRECATED_CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:deprecated_call_dummy_breakpoint_offset 534# DEPRECATED_CALL_DUMMY_LENGTH can be deleted. 535v::DEPRECATED_CALL_DUMMY_LENGTH:int:deprecated_call_dummy_length 536# DEPRECATED_CALL_DUMMY_WORDS can be deleted. 537v::DEPRECATED_CALL_DUMMY_WORDS:LONGEST *:deprecated_call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx 538# Implement PUSH_DUMMY_CALL, then delete DEPRECATED_SIZEOF_CALL_DUMMY_WORDS. 539v::DEPRECATED_SIZEOF_CALL_DUMMY_WORDS:int:deprecated_sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0 540# DEPRECATED_FIX_CALL_DUMMY can be deleted. For the SPARC, implement 541# PUSH_DUMMY_CODE and set CALL_DUMMY_LOCATION to ON_STACK. 542F::DEPRECATED_FIX_CALL_DUMMY:void:deprecated_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 543# This is a replacement for DEPRECATED_FIX_CALL_DUMMY et.al. 544M::PUSH_DUMMY_CODE:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr:sp, funaddr, using_gcc, args, nargs, value_type, real_pc, bp_addr 545# Implement PUSH_DUMMY_CALL, then delete DEPRECATED_PUSH_DUMMY_FRAME. 546F:2:DEPRECATED_PUSH_DUMMY_FRAME:void:deprecated_push_dummy_frame:void:- 547 548F:2:DEPRECATED_DO_REGISTERS_INFO:void:deprecated_do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs 549m:2:PRINT_REGISTERS_INFO:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all:::default_print_registers_info::0 550M:2:PRINT_FLOAT_INFO:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args 551M:2:PRINT_VECTOR_INFO:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args 552# MAP a GDB RAW register number onto a simulator register number. See 553# also include/...-sim.h. 554f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::legacy_register_sim_regno::0 555F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes 556f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0 557f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0 558# setjmp/longjmp support. 559F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc 560# NOTE: cagney/2002-11-24: This function with predicate has a valid 561# (callable) initial value. As a consequence, even when the predicate 562# is false, the corresponding function works. This simplifies the 563# migration process - old code, calling DEPRECATED_PC_IN_CALL_DUMMY(), 564# doesn't need to be modified. 565F::DEPRECATED_PC_IN_CALL_DUMMY:int:deprecated_pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::generic_pc_in_call_dummy:generic_pc_in_call_dummy 566F:2:DEPRECATED_INIT_FRAME_PC_FIRST:CORE_ADDR:deprecated_init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev 567F:2:DEPRECATED_INIT_FRAME_PC:CORE_ADDR:deprecated_init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev 568# 569v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::::: 570v::BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::::: 571F:2:DEPRECATED_GET_SAVED_REGISTER:void:deprecated_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 572# 573# For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al. 574# For raw <-> cooked register conversions, replaced by pseudo registers. 575F::DEPRECATED_REGISTER_CONVERTIBLE:int:deprecated_register_convertible:int nr:nr 576# For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al. 577# For raw <-> cooked register conversions, replaced by pseudo registers. 578f:2:DEPRECATED_REGISTER_CONVERT_TO_VIRTUAL:void:deprecated_register_convert_to_virtual:int regnum, struct type *type, char *from, char *to:regnum, type, from, to:::0::0 579# For register <-> value conversions, replaced by CONVERT_REGISTER_P et.al. 580# For raw <-> cooked register conversions, replaced by pseudo registers. 581f:2:DEPRECATED_REGISTER_CONVERT_TO_RAW:void:deprecated_register_convert_to_raw:struct type *type, int regnum, const char *from, char *to:type, regnum, from, to:::0::0 582# 583f:1:CONVERT_REGISTER_P:int:convert_register_p:int regnum, struct type *type:regnum, type::0:legacy_convert_register_p::0 584f:1:REGISTER_TO_VALUE:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, void *buf:frame, regnum, type, buf::0:legacy_register_to_value::0 585f:1:VALUE_TO_REGISTER:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const void *buf:frame, regnum, type, buf::0:legacy_value_to_register::0 586# 587f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, const void *buf:type, buf:::unsigned_pointer_to_address::0 588f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0 589F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf 590# 591F:2:DEPRECATED_POP_FRAME:void:deprecated_pop_frame:void:- 592# NOTE: cagney/2003-03-24: Replaced by PUSH_ARGUMENTS. 593F:2:DEPRECATED_STORE_STRUCT_RETURN:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp 594 595# It has been suggested that this, well actually its predecessor, 596# should take the type/value of the function to be called and not the 597# return type. This is left as an exercise for the reader. 598 599M:::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, void *readbuf, const void *writebuf:valtype, regcache, readbuf, writebuf 600 601# The deprecated methods RETURN_VALUE_ON_STACK, EXTRACT_RETURN_VALUE, 602# STORE_RETURN_VALUE and USE_STRUCT_CONVENTION have all been folded 603# into RETURN_VALUE. 604 605f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0 606f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, struct regcache *regcache, void *valbuf:type, regcache, valbuf:::legacy_extract_return_value::0 607f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, struct regcache *regcache, const void *valbuf:type, regcache, valbuf:::legacy_store_return_value::0 608f:2:DEPRECATED_EXTRACT_RETURN_VALUE:void:deprecated_extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf 609f:2:DEPRECATED_STORE_RETURN_VALUE:void:deprecated_store_return_value:struct type *type, char *valbuf:type, valbuf 610f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0 611 612# As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an 613# ABI suitable for the implementation of a robust extract 614# struct-convention return-value address method (the sparc saves the 615# address in the callers frame). All the other cases so far examined, 616# the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been 617# erreneous - the code was incorrectly assuming that the return-value 618# address, stored in a register, was preserved across the entire 619# function call. 620 621# For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of 622# the ABIs that are still to be analyzed - perhaps this should simply 623# be deleted. The commented out extract_returned_value_address method 624# is provided as a starting point for the 32-bit SPARC. It, or 625# something like it, along with changes to both infcmd.c and stack.c 626# will be needed for that case to work. NB: It is passed the callers 627# frame since it is only after the callee has returned that this 628# function is used. 629 630#M:::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame 631F:2:DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache 632 633F:2:DEPRECATED_FRAME_INIT_SAVED_REGS:void:deprecated_frame_init_saved_regs:struct frame_info *frame:frame 634F:2:DEPRECATED_INIT_EXTRA_FRAME_INFO:void:deprecated_init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame 635# 636f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 637f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 638f::BREAKPOINT_FROM_PC:const unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::0: 639M:2:ADJUST_BREAKPOINT_ADDRESS:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr 640f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0 641f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0 642v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:::0 643v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:::0 644# 645m::REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:struct regcache *regcache, CORE_ADDR gdb_addr, int gdb_len, CORE_ADDR *rem_addr, int *rem_len:regcache, gdb_addr, gdb_len, rem_addr, rem_len:::generic_remote_translate_xfer_address::0 646# 647v::FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:::0 648# DEPRECATED_FRAMELESS_FUNCTION_INVOCATION is not needed. The new 649# frame code works regardless of the type of frame - frameless, 650# stackless, or normal. 651F::DEPRECATED_FRAMELESS_FUNCTION_INVOCATION:int:deprecated_frameless_function_invocation:struct frame_info *fi:fi 652F:2:DEPRECATED_FRAME_CHAIN:CORE_ADDR:deprecated_frame_chain:struct frame_info *frame:frame 653F:2:DEPRECATED_FRAME_CHAIN_VALID:int:deprecated_frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe 654# DEPRECATED_FRAME_SAVED_PC has been replaced by UNWIND_PC. Please 655# note, per UNWIND_PC's doco, that while the two have similar 656# interfaces they have very different underlying implementations. 657F:2:DEPRECATED_FRAME_SAVED_PC:CORE_ADDR:deprecated_frame_saved_pc:struct frame_info *fi:fi 658M::UNWIND_PC:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame 659M::UNWIND_SP:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame 660# DEPRECATED_FRAME_ARGS_ADDRESS as been replaced by the per-frame 661# frame-base. Enable frame-base before frame-unwind. 662F::DEPRECATED_FRAME_ARGS_ADDRESS:CORE_ADDR:deprecated_frame_args_address:struct frame_info *fi:fi::get_frame_base:get_frame_base 663# DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame 664# frame-base. Enable frame-base before frame-unwind. 665F::DEPRECATED_FRAME_LOCALS_ADDRESS:CORE_ADDR:deprecated_frame_locals_address:struct frame_info *fi:fi::get_frame_base:get_frame_base 666F::DEPRECATED_SAVED_PC_AFTER_CALL:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame 667F:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame 668# 669# DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call 670# to frame_align and the requirement that methods such as 671# push_dummy_call and frame_red_zone_size maintain correct stack/frame 672# alignment. 673F:2:DEPRECATED_STACK_ALIGN:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp 674M:::CORE_ADDR:frame_align:CORE_ADDR address:address 675# DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by 676# stabs_argument_has_addr. 677F:2:DEPRECATED_REG_STRUCT_HAS_ADDR:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type 678m:::int:stabs_argument_has_addr:struct type *type:type:::default_stabs_argument_has_addr::0 679v::FRAME_RED_ZONE_SIZE:int:frame_red_zone_size 680v:2:PARM_BOUNDARY:int:parm_boundary 681# 682v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (current_gdbarch)::%s:(TARGET_FLOAT_FORMAT)->name 683v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_DOUBLE_FORMAT)->name 684v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::default_double_format (current_gdbarch)::%s:(TARGET_LONG_DOUBLE_FORMAT)->name 685m:::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ:::convert_from_func_ptr_addr_identity::0 686# On some machines there are bits in addresses which are not really 687# part of the address, but are used by the kernel, the hardware, etc. 688# for special purposes. ADDR_BITS_REMOVE takes out any such bits so 689# we get a "real" address such as one would find in a symbol table. 690# This is used only for addresses of instructions, and even then I'm 691# not sure it's used in all contexts. It exists to deal with there 692# being a few stray bits in the PC which would mislead us, not as some 693# sort of generic thing to handle alignment or segmentation (it's 694# possible it should be in TARGET_READ_PC instead). 695f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0 696# It is not at all clear why SMASH_TEXT_ADDRESS is not folded into 697# ADDR_BITS_REMOVE. 698f:2:SMASH_TEXT_ADDRESS:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr:::core_addr_identity::0 699# FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if 700# the target needs software single step. An ISA method to implement it. 701# 702# FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints 703# using the breakpoint system instead of blatting memory directly (as with rs6000). 704# 705# FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can 706# single step. If not, then implement single step using breakpoints. 707F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p 708# FIXME: cagney/2003-08-28: Need to find a better way of selecting the 709# disassembler. Perhaphs objdump can handle it? 710f::TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info:::0: 711f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0 712 713 714# If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER 715# evaluates non-zero, this is the address where the debugger will place 716# a step-resume breakpoint to get us past the dynamic linker. 717m:2:SKIP_SOLIB_RESOLVER:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc:::generic_skip_solib_resolver::0 718# For SVR4 shared libraries, each call goes through a small piece of 719# trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates 720# to nonzero if we are currently stopped in one of these. 721f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0 722 723# Some systems also have trampoline code for returning from shared libs. 724f:2:IN_SOLIB_RETURN_TRAMPOLINE:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_return_trampoline::0 725 726# Sigtramp is a routine that the kernel calls (which then calls the 727# signal handler). On most machines it is a library routine that is 728# linked into the executable. 729# 730# This macro, given a program counter value and the name of the 731# function in which that PC resides (which can be null if the name is 732# not known), returns nonzero if the PC and name show that we are in 733# sigtramp. 734# 735# On most machines just see if the name is sigtramp (and if we have 736# no name, assume we are not in sigtramp). 737# 738# FIXME: cagney/2002-04-21: The function find_pc_partial_function 739# calls find_pc_sect_partial_function() which calls PC_IN_SIGTRAMP. 740# This means PC_IN_SIGTRAMP function can't be implemented by doing its 741# own local NAME lookup. 742# 743# FIXME: cagney/2002-04-21: PC_IN_SIGTRAMP is something of a mess. 744# Some code also depends on SIGTRAMP_START and SIGTRAMP_END but other 745# does not. 746f:2:PC_IN_SIGTRAMP:int:pc_in_sigtramp:CORE_ADDR pc, char *name:pc, name:::legacy_pc_in_sigtramp::0 747F:2:SIGTRAMP_START:CORE_ADDR:sigtramp_start:CORE_ADDR pc:pc 748F:2:SIGTRAMP_END:CORE_ADDR:sigtramp_end:CORE_ADDR pc:pc 749# A target might have problems with watchpoints as soon as the stack 750# frame of the current function has been destroyed. This mostly happens 751# as the first action in a funtion's epilogue. in_function_epilogue_p() 752# is defined to return a non-zero value if either the given addr is one 753# instruction after the stack destroying instruction up to the trailing 754# return instruction or if we can figure out that the stack frame has 755# already been invalidated regardless of the value of addr. Targets 756# which don't suffer from that problem could just let this functionality 757# untouched. 758m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0 759# Given a vector of command-line arguments, return a newly allocated 760# string which, when passed to the create_inferior function, will be 761# parsed (on Unix systems, by the shell) to yield the same vector. 762# This function should call error() if the argument vector is not 763# representable for this target or if this target does not support 764# command-line arguments. 765# ARGC is the number of elements in the vector. 766# ARGV is an array of strings, one per argument. 767m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0 768f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0 769f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0 770v:2:NAME_OF_MALLOC:const char *:name_of_malloc::::"malloc":"malloc"::0:%s:NAME_OF_MALLOC 771v:2:CANNOT_STEP_BREAKPOINT:int:cannot_step_breakpoint::::0:0::0 772v:2:HAVE_NONSTEPPABLE_WATCHPOINT:int:have_nonsteppable_watchpoint::::0:0::0 773F:2:ADDRESS_CLASS_TYPE_FLAGS:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class 774M:2:ADDRESS_CLASS_TYPE_FLAGS_TO_NAME:const char *:address_class_type_flags_to_name:int type_flags:type_flags 775M:2:ADDRESS_CLASS_NAME_TO_TYPE_FLAGS:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr 776# Is a register in a group 777m:::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup:::default_register_reggroup_p::0 778# Fetch the pointer to the ith function argument. 779F::FETCH_POINTER_ARGUMENT:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type 780 781# Return the appropriate register set for a core file section with 782# name SECT_NAME and size SECT_SIZE. 783M:::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size 784EOF 785} 786 787# 788# The .log file 789# 790exec > new-gdbarch.log 791function_list | while do_read 792do 793 cat <<EOF 794${class} ${macro}(${actual}) 795 ${returntype} ${function} ($formal)${attrib} 796EOF 797 for r in ${read} 798 do 799 eval echo \"\ \ \ \ ${r}=\${${r}}\" 800 done 801 if class_is_predicate_p && fallback_default_p 802 then 803 echo "Error: predicate function ${macro} can not have a non- multi-arch default" 1>&2 804 kill $$ 805 exit 1 806 fi 807 if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] 808 then 809 echo "Error: postdefault is useless when invalid_p=0" 1>&2 810 kill $$ 811 exit 1 812 fi 813 if class_is_multiarch_p 814 then 815 if class_is_predicate_p ; then : 816 elif test "x${predefault}" = "x" 817 then 818 echo "Error: pure multi-arch function must have a predefault" 1>&2 819 kill $$ 820 exit 1 821 fi 822 fi 823 echo "" 824done 825 826exec 1>&2 827compare_new gdbarch.log 828 829 830copyright () 831{ 832cat <<EOF 833/* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ 834 835/* Dynamic architecture support for GDB, the GNU debugger. 836 837 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free 838 Software Foundation, Inc. 839 840 This file is part of GDB. 841 842 This program is free software; you can redistribute it and/or modify 843 it under the terms of the GNU General Public License as published by 844 the Free Software Foundation; either version 2 of the License, or 845 (at your option) any later version. 846 847 This program is distributed in the hope that it will be useful, 848 but WITHOUT ANY WARRANTY; without even the implied warranty of 849 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 850 GNU General Public License for more details. 851 852 You should have received a copy of the GNU General Public License 853 along with this program; if not, write to the Free Software 854 Foundation, Inc., 59 Temple Place - Suite 330, 855 Boston, MA 02111-1307, USA. */ 856 857/* This file was created with the aid of \`\`gdbarch.sh''. 858 859 The Bourne shell script \`\`gdbarch.sh'' creates the files 860 \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them 861 against the existing \`\`gdbarch.[hc]''. Any differences found 862 being reported. 863 864 If editing this file, please also run gdbarch.sh and merge any 865 changes into that script. Conversely, when making sweeping changes 866 to this file, modifying gdbarch.sh and using its output may prove 867 easier. */ 868 869EOF 870} 871 872# 873# The .h file 874# 875 876exec > new-gdbarch.h 877copyright 878cat <<EOF 879#ifndef GDBARCH_H 880#define GDBARCH_H 881 882struct floatformat; 883struct ui_file; 884struct frame_info; 885struct value; 886struct objfile; 887struct minimal_symbol; 888struct regcache; 889struct reggroup; 890struct regset; 891struct disassemble_info; 892struct target_ops; 893 894extern struct gdbarch *current_gdbarch; 895 896 897/* If any of the following are defined, the target wasn't correctly 898 converted. */ 899 900#if (GDB_MULTI_ARCH >= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE) 901#error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file." 902#endif 903EOF 904 905# function typedef's 906printf "\n" 907printf "\n" 908printf "/* The following are pre-initialized by GDBARCH. */\n" 909function_list | while do_read 910do 911 if class_is_info_p 912 then 913 printf "\n" 914 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" 915 printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" 916 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n" 917 printf "#error \"Non multi-arch definition of ${macro}\"\n" 918 printf "#endif\n" 919 printf "#if !defined (${macro})\n" 920 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" 921 printf "#endif\n" 922 fi 923done 924 925# function typedef's 926printf "\n" 927printf "\n" 928printf "/* The following are initialized by the target dependent code. */\n" 929function_list | while do_read 930do 931 if [ -n "${comment}" ] 932 then 933 echo "${comment}" | sed \ 934 -e '2 s,#,/*,' \ 935 -e '3,$ s,#, ,' \ 936 -e '$ s,$, */,' 937 fi 938 if class_is_multiarch_p 939 then 940 if class_is_predicate_p 941 then 942 printf "\n" 943 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" 944 fi 945 else 946 if class_is_predicate_p 947 then 948 printf "\n" 949 printf "#if defined (${macro})\n" 950 printf "/* Legacy for systems yet to multi-arch ${macro} */\n" 951 #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n" 952 printf "#if !defined (${macro}_P)\n" 953 printf "#define ${macro}_P() (1)\n" 954 printf "#endif\n" 955 printf "#endif\n" 956 printf "\n" 957 printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" 958 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro}_P)\n" 959 printf "#error \"Non multi-arch definition of ${macro}\"\n" 960 printf "#endif\n" 961 printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${macro}_P)\n" 962 printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n" 963 printf "#endif\n" 964 fi 965 fi 966 if class_is_variable_p 967 then 968 printf "\n" 969 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" 970 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" 971 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n" 972 printf "#error \"Non multi-arch definition of ${macro}\"\n" 973 printf "#endif\n" 974 printf "#if !defined (${macro})\n" 975 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" 976 printf "#endif\n" 977 fi 978 if class_is_function_p 979 then 980 printf "\n" 981 if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p 982 then 983 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" 984 elif class_is_multiarch_p 985 then 986 printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" 987 else 988 printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" 989 fi 990 if [ "x${formal}" = "xvoid" ] 991 then 992 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" 993 else 994 printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" 995 fi 996 printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" 997 if class_is_multiarch_p ; then : 998 else 999 printf "#if (GDB_MULTI_ARCH ${gt_level}) && defined (${macro})\n" 1000 printf "#error \"Non multi-arch definition of ${macro}\"\n" 1001 printf "#endif\n" 1002 if [ "x${actual}" = "x" ] 1003 then 1004 d="#define ${macro}() (gdbarch_${function} (current_gdbarch))" 1005 elif [ "x${actual}" = "x-" ] 1006 then 1007 d="#define ${macro} (gdbarch_${function} (current_gdbarch))" 1008 else 1009 d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" 1010 fi 1011 printf "#if !defined (${macro})\n" 1012 if [ "x${actual}" = "x" ] 1013 then 1014 printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n" 1015 elif [ "x${actual}" = "x-" ] 1016 then 1017 printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" 1018 else 1019 printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n" 1020 fi 1021 printf "#endif\n" 1022 fi 1023 fi 1024done 1025 1026# close it off 1027cat <<EOF 1028 1029extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); 1030 1031 1032/* Mechanism for co-ordinating the selection of a specific 1033 architecture. 1034 1035 GDB targets (*-tdep.c) can register an interest in a specific 1036 architecture. Other GDB components can register a need to maintain 1037 per-architecture data. 1038 1039 The mechanisms below ensures that there is only a loose connection 1040 between the set-architecture command and the various GDB 1041 components. Each component can independently register their need 1042 to maintain architecture specific data with gdbarch. 1043 1044 Pragmatics: 1045 1046 Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It 1047 didn't scale. 1048 1049 The more traditional mega-struct containing architecture specific 1050 data for all the various GDB components was also considered. Since 1051 GDB is built from a variable number of (fairly independent) 1052 components it was determined that the global aproach was not 1053 applicable. */ 1054 1055 1056/* Register a new architectural family with GDB. 1057 1058 Register support for the specified ARCHITECTURE with GDB. When 1059 gdbarch determines that the specified architecture has been 1060 selected, the corresponding INIT function is called. 1061 1062 -- 1063 1064 The INIT function takes two parameters: INFO which contains the 1065 information available to gdbarch about the (possibly new) 1066 architecture; ARCHES which is a list of the previously created 1067 \`\`struct gdbarch'' for this architecture. 1068 1069 The INFO parameter is, as far as possible, be pre-initialized with 1070 information obtained from INFO.ABFD or the previously selected 1071 architecture. 1072 1073 The ARCHES parameter is a linked list (sorted most recently used) 1074 of all the previously created architures for this architecture 1075 family. The (possibly NULL) ARCHES->gdbarch can used to access 1076 values from the previously selected architecture for this 1077 architecture family. The global \`\`current_gdbarch'' shall not be 1078 used. 1079 1080 The INIT function shall return any of: NULL - indicating that it 1081 doesn't recognize the selected architecture; an existing \`\`struct 1082 gdbarch'' from the ARCHES list - indicating that the new 1083 architecture is just a synonym for an earlier architecture (see 1084 gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' 1085 - that describes the selected architecture (see gdbarch_alloc()). 1086 1087 The DUMP_TDEP function shall print out all target specific values. 1088 Care should be taken to ensure that the function works in both the 1089 multi-arch and non- multi-arch cases. */ 1090 1091struct gdbarch_list 1092{ 1093 struct gdbarch *gdbarch; 1094 struct gdbarch_list *next; 1095}; 1096 1097struct gdbarch_info 1098{ 1099 /* Use default: NULL (ZERO). */ 1100 const struct bfd_arch_info *bfd_arch_info; 1101 1102 /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ 1103 int byte_order; 1104 1105 /* Use default: NULL (ZERO). */ 1106 bfd *abfd; 1107 1108 /* Use default: NULL (ZERO). */ 1109 struct gdbarch_tdep_info *tdep_info; 1110 1111 /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ 1112 enum gdb_osabi osabi; 1113}; 1114 1115typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); 1116typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); 1117 1118/* DEPRECATED - use gdbarch_register() */ 1119extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); 1120 1121extern void gdbarch_register (enum bfd_architecture architecture, 1122 gdbarch_init_ftype *, 1123 gdbarch_dump_tdep_ftype *); 1124 1125 1126/* Return a freshly allocated, NULL terminated, array of the valid 1127 architecture names. Since architectures are registered during the 1128 _initialize phase this function only returns useful information 1129 once initialization has been completed. */ 1130 1131extern const char **gdbarch_printable_names (void); 1132 1133 1134/* Helper function. Search the list of ARCHES for a GDBARCH that 1135 matches the information provided by INFO. */ 1136 1137extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); 1138 1139 1140/* Helper function. Create a preliminary \`\`struct gdbarch''. Perform 1141 basic initialization using values obtained from the INFO andTDEP 1142 parameters. set_gdbarch_*() functions are called to complete the 1143 initialization of the object. */ 1144 1145extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); 1146 1147 1148/* Helper function. Free a partially-constructed \`\`struct gdbarch''. 1149 It is assumed that the caller freeds the \`\`struct 1150 gdbarch_tdep''. */ 1151 1152extern void gdbarch_free (struct gdbarch *); 1153 1154 1155/* Helper function. Allocate memory from the \`\`struct gdbarch'' 1156 obstack. The memory is freed when the corresponding architecture 1157 is also freed. */ 1158 1159extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); 1160#define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) 1161#define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) 1162 1163 1164/* Helper function. Force an update of the current architecture. 1165 1166 The actual architecture selected is determined by INFO, \`\`(gdb) set 1167 architecture'' et.al., the existing architecture and BFD's default 1168 architecture. INFO should be initialized to zero and then selected 1169 fields should be updated. 1170 1171 Returns non-zero if the update succeeds */ 1172 1173extern int gdbarch_update_p (struct gdbarch_info info); 1174 1175 1176/* Helper function. Find an architecture matching info. 1177 1178 INFO should be initialized using gdbarch_info_init, relevant fields 1179 set, and then finished using gdbarch_info_fill. 1180 1181 Returns the corresponding architecture, or NULL if no matching 1182 architecture was found. "current_gdbarch" is not updated. */ 1183 1184extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); 1185 1186 1187/* Helper function. Set the global "current_gdbarch" to "gdbarch". 1188 1189 FIXME: kettenis/20031124: Of the functions that follow, only 1190 gdbarch_from_bfd is supposed to survive. The others will 1191 dissappear since in the future GDB will (hopefully) be truly 1192 multi-arch. However, for now we're still stuck with the concept of 1193 a single active architecture. */ 1194 1195extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch); 1196 1197 1198/* Register per-architecture data-pointer. 1199 1200 Reserve space for a per-architecture data-pointer. An identifier 1201 for the reserved data-pointer is returned. That identifer should 1202 be saved in a local static variable. 1203 1204 The per-architecture data-pointer is either initialized explicitly 1205 (set_gdbarch_data()) or implicitly (by INIT() via a call to 1206 gdbarch_data()). 1207 1208 Memory for the per-architecture data shall be allocated using 1209 gdbarch_obstack_zalloc. That memory will be deleted when the 1210 corresponding architecture object is deleted. 1211 1212 When a previously created architecture is re-selected, the 1213 per-architecture data-pointer for that previous architecture is 1214 restored. INIT() is not re-called. 1215 1216 Multiple registrarants for any architecture are allowed (and 1217 strongly encouraged). */ 1218 1219struct gdbarch_data; 1220 1221typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch); 1222extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init); 1223extern void set_gdbarch_data (struct gdbarch *gdbarch, 1224 struct gdbarch_data *data, 1225 void *pointer); 1226 1227extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); 1228 1229 1230 1231/* Register per-architecture memory region. 1232 1233 Provide a memory-region swap mechanism. Per-architecture memory 1234 region are created. These memory regions are swapped whenever the 1235 architecture is changed. For a new architecture, the memory region 1236 is initialized with zero (0) and the INIT function is called. 1237 1238 Memory regions are swapped / initialized in the order that they are 1239 registered. NULL DATA and/or INIT values can be specified. 1240 1241 New code should use register_gdbarch_data(). */ 1242 1243typedef void (gdbarch_swap_ftype) (void); 1244extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); 1245#define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) 1246 1247 1248 1249/* Set the dynamic target-system-dependent parameters (architecture, 1250 byte-order, ...) using information found in the BFD */ 1251 1252extern void set_gdbarch_from_file (bfd *); 1253 1254 1255/* Initialize the current architecture to the "first" one we find on 1256 our list. */ 1257 1258extern void initialize_current_architecture (void); 1259 1260/* gdbarch trace variable */ 1261extern int gdbarch_debug; 1262 1263extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); 1264 1265#endif 1266EOF 1267exec 1>&2 1268#../move-if-change new-gdbarch.h gdbarch.h 1269compare_new gdbarch.h 1270 1271 1272# 1273# C file 1274# 1275 1276exec > new-gdbarch.c 1277copyright 1278cat <<EOF 1279 1280#include "defs.h" 1281#include "arch-utils.h" 1282 1283#include "gdbcmd.h" 1284#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ 1285#include "symcat.h" 1286 1287#include "floatformat.h" 1288 1289#include "gdb_assert.h" 1290#include "gdb_string.h" 1291#include "gdb-events.h" 1292#include "reggroups.h" 1293#include "osabi.h" 1294#include "gdb_obstack.h" 1295 1296/* Static function declarations */ 1297 1298static void alloc_gdbarch_data (struct gdbarch *); 1299 1300/* Non-zero if we want to trace architecture code. */ 1301 1302#ifndef GDBARCH_DEBUG 1303#define GDBARCH_DEBUG 0 1304#endif 1305int gdbarch_debug = GDBARCH_DEBUG; 1306 1307EOF 1308 1309# gdbarch open the gdbarch object 1310printf "\n" 1311printf "/* Maintain the struct gdbarch object */\n" 1312printf "\n" 1313printf "struct gdbarch\n" 1314printf "{\n" 1315printf " /* Has this architecture been fully initialized? */\n" 1316printf " int initialized_p;\n" 1317printf "\n" 1318printf " /* An obstack bound to the lifetime of the architecture. */\n" 1319printf " struct obstack *obstack;\n" 1320printf "\n" 1321printf " /* basic architectural information */\n" 1322function_list | while do_read 1323do 1324 if class_is_info_p 1325 then 1326 printf " ${returntype} ${function};\n" 1327 fi 1328done 1329printf "\n" 1330printf " /* target specific vector. */\n" 1331printf " struct gdbarch_tdep *tdep;\n" 1332printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" 1333printf "\n" 1334printf " /* per-architecture data-pointers */\n" 1335printf " unsigned nr_data;\n" 1336printf " void **data;\n" 1337printf "\n" 1338printf " /* per-architecture swap-regions */\n" 1339printf " struct gdbarch_swap *swap;\n" 1340printf "\n" 1341cat <<EOF 1342 /* Multi-arch values. 1343 1344 When extending this structure you must: 1345 1346 Add the field below. 1347 1348 Declare set/get functions and define the corresponding 1349 macro in gdbarch.h. 1350 1351 gdbarch_alloc(): If zero/NULL is not a suitable default, 1352 initialize the new field. 1353 1354 verify_gdbarch(): Confirm that the target updated the field 1355 correctly. 1356 1357 gdbarch_dump(): Add a fprintf_unfiltered call so that the new 1358 field is dumped out 1359 1360 \`\`startup_gdbarch()'': Append an initial value to the static 1361 variable (base values on the host's c-type system). 1362 1363 get_gdbarch(): Implement the set/get functions (probably using 1364 the macro's as shortcuts). 1365 1366 */ 1367 1368EOF 1369function_list | while do_read 1370do 1371 if class_is_variable_p 1372 then 1373 printf " ${returntype} ${function};\n" 1374 elif class_is_function_p 1375 then 1376 printf " gdbarch_${function}_ftype *${function}${attrib};\n" 1377 fi 1378done 1379printf "};\n" 1380 1381# A pre-initialized vector 1382printf "\n" 1383printf "\n" 1384cat <<EOF 1385/* The default architecture uses host values (for want of a better 1386 choice). */ 1387EOF 1388printf "\n" 1389printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n" 1390printf "\n" 1391printf "struct gdbarch startup_gdbarch =\n" 1392printf "{\n" 1393printf " 1, /* Always initialized. */\n" 1394printf " NULL, /* The obstack. */\n" 1395printf " /* basic architecture information */\n" 1396function_list | while do_read 1397do 1398 if class_is_info_p 1399 then 1400 printf " ${staticdefault}, /* ${function} */\n" 1401 fi 1402done 1403cat <<EOF 1404 /* target specific vector and its dump routine */ 1405 NULL, NULL, 1406 /*per-architecture data-pointers and swap regions */ 1407 0, NULL, NULL, 1408 /* Multi-arch values */ 1409EOF 1410function_list | while do_read 1411do 1412 if class_is_function_p || class_is_variable_p 1413 then 1414 printf " ${staticdefault}, /* ${function} */\n" 1415 fi 1416done 1417cat <<EOF 1418 /* startup_gdbarch() */ 1419}; 1420 1421struct gdbarch *current_gdbarch = &startup_gdbarch; 1422EOF 1423 1424# Create a new gdbarch struct 1425cat <<EOF 1426 1427/* Create a new \`\`struct gdbarch'' based on information provided by 1428 \`\`struct gdbarch_info''. */ 1429EOF 1430printf "\n" 1431cat <<EOF 1432struct gdbarch * 1433gdbarch_alloc (const struct gdbarch_info *info, 1434 struct gdbarch_tdep *tdep) 1435{ 1436 /* NOTE: The new architecture variable is named \`\`current_gdbarch'' 1437 so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to 1438 the current local architecture and not the previous global 1439 architecture. This ensures that the new architectures initial 1440 values are not influenced by the previous architecture. Once 1441 everything is parameterised with gdbarch, this will go away. */ 1442 struct gdbarch *current_gdbarch; 1443 1444 /* Create an obstack for allocating all the per-architecture memory, 1445 then use that to allocate the architecture vector. */ 1446 struct obstack *obstack = XMALLOC (struct obstack); 1447 obstack_init (obstack); 1448 current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch)); 1449 memset (current_gdbarch, 0, sizeof (*current_gdbarch)); 1450 current_gdbarch->obstack = obstack; 1451 1452 alloc_gdbarch_data (current_gdbarch); 1453 1454 current_gdbarch->tdep = tdep; 1455EOF 1456printf "\n" 1457function_list | while do_read 1458do 1459 if class_is_info_p 1460 then 1461 printf " current_gdbarch->${function} = info->${function};\n" 1462 fi 1463done 1464printf "\n" 1465printf " /* Force the explicit initialization of these. */\n" 1466function_list | while do_read 1467do 1468 if class_is_function_p || class_is_variable_p 1469 then 1470 if [ -n "${predefault}" -a "x${predefault}" != "x0" ] 1471 then 1472 printf " current_gdbarch->${function} = ${predefault};\n" 1473 fi 1474 fi 1475done 1476cat <<EOF 1477 /* gdbarch_alloc() */ 1478 1479 return current_gdbarch; 1480} 1481EOF 1482 1483# Free a gdbarch struct. 1484printf "\n" 1485printf "\n" 1486cat <<EOF 1487/* Allocate extra space using the per-architecture obstack. */ 1488 1489void * 1490gdbarch_obstack_zalloc (struct gdbarch *arch, long size) 1491{ 1492 void *data = obstack_alloc (arch->obstack, size); 1493 memset (data, 0, size); 1494 return data; 1495} 1496 1497 1498/* Free a gdbarch struct. This should never happen in normal 1499 operation --- once you've created a gdbarch, you keep it around. 1500 However, if an architecture's init function encounters an error 1501 building the structure, it may need to clean up a partially 1502 constructed gdbarch. */ 1503 1504void 1505gdbarch_free (struct gdbarch *arch) 1506{ 1507 struct obstack *obstack; 1508 gdb_assert (arch != NULL); 1509 gdb_assert (!arch->initialized_p); 1510 obstack = arch->obstack; 1511 obstack_free (obstack, 0); /* Includes the ARCH. */ 1512 xfree (obstack); 1513} 1514EOF 1515 1516# verify a new architecture 1517cat <<EOF 1518 1519 1520/* Ensure that all values in a GDBARCH are reasonable. */ 1521 1522/* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it 1523 just happens to match the global variable \`\`current_gdbarch''. That 1524 way macros refering to that variable get the local and not the global 1525 version - ulgh. Once everything is parameterised with gdbarch, this 1526 will go away. */ 1527 1528static void 1529verify_gdbarch (struct gdbarch *current_gdbarch) 1530{ 1531 struct ui_file *log; 1532 struct cleanup *cleanups; 1533 long dummy; 1534 char *buf; 1535 log = mem_fileopen (); 1536 cleanups = make_cleanup_ui_file_delete (log); 1537 /* fundamental */ 1538 if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) 1539 fprintf_unfiltered (log, "\n\tbyte-order"); 1540 if (current_gdbarch->bfd_arch_info == NULL) 1541 fprintf_unfiltered (log, "\n\tbfd_arch_info"); 1542 /* Check those that need to be defined for the given multi-arch level. */ 1543EOF 1544function_list | while do_read 1545do 1546 if class_is_function_p || class_is_variable_p 1547 then 1548 if [ "x${invalid_p}" = "x0" ] 1549 then 1550 printf " /* Skip verify of ${function}, invalid_p == 0 */\n" 1551 elif class_is_predicate_p 1552 then 1553 printf " /* Skip verify of ${function}, has predicate */\n" 1554 # FIXME: See do_read for potential simplification 1555 elif [ -n "${invalid_p}" -a -n "${postdefault}" ] 1556 then 1557 printf " if (${invalid_p})\n" 1558 printf " current_gdbarch->${function} = ${postdefault};\n" 1559 elif [ -n "${predefault}" -a -n "${postdefault}" ] 1560 then 1561 printf " if (current_gdbarch->${function} == ${predefault})\n" 1562 printf " current_gdbarch->${function} = ${postdefault};\n" 1563 elif [ -n "${postdefault}" ] 1564 then 1565 printf " if (current_gdbarch->${function} == 0)\n" 1566 printf " current_gdbarch->${function} = ${postdefault};\n" 1567 elif [ -n "${invalid_p}" ] 1568 then 1569 printf " if ((GDB_MULTI_ARCH ${gt_level})\n" 1570 printf " && (${invalid_p}))\n" 1571 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" 1572 elif [ -n "${predefault}" ] 1573 then 1574 printf " if ((GDB_MULTI_ARCH ${gt_level})\n" 1575 printf " && (current_gdbarch->${function} == ${predefault}))\n" 1576 printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" 1577 fi 1578 fi 1579done 1580cat <<EOF 1581 buf = ui_file_xstrdup (log, &dummy); 1582 make_cleanup (xfree, buf); 1583 if (strlen (buf) > 0) 1584 internal_error (__FILE__, __LINE__, 1585 "verify_gdbarch: the following are invalid ...%s", 1586 buf); 1587 do_cleanups (cleanups); 1588} 1589EOF 1590 1591# dump the structure 1592printf "\n" 1593printf "\n" 1594cat <<EOF 1595/* Print out the details of the current architecture. */ 1596 1597/* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it 1598 just happens to match the global variable \`\`current_gdbarch''. That 1599 way macros refering to that variable get the local and not the global 1600 version - ulgh. Once everything is parameterised with gdbarch, this 1601 will go away. */ 1602 1603void 1604gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file) 1605{ 1606 fprintf_unfiltered (file, 1607 "gdbarch_dump: GDB_MULTI_ARCH = %d\\n", 1608 GDB_MULTI_ARCH); 1609EOF 1610function_list | sort -t: -k 3 | while do_read 1611do 1612 # First the predicate 1613 if class_is_predicate_p 1614 then 1615 if class_is_multiarch_p 1616 then 1617 printf " fprintf_unfiltered (file,\n" 1618 printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" 1619 printf " gdbarch_${function}_p (current_gdbarch));\n" 1620 else 1621 printf "#ifdef ${macro}_P\n" 1622 printf " fprintf_unfiltered (file,\n" 1623 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" 1624 printf " \"${macro}_P()\",\n" 1625 printf " XSTRING (${macro}_P ()));\n" 1626 printf " fprintf_unfiltered (file,\n" 1627 printf " \"gdbarch_dump: ${macro}_P() = %%d\\\\n\",\n" 1628 printf " ${macro}_P ());\n" 1629 printf "#endif\n" 1630 fi 1631 fi 1632 # multiarch functions don't have macros. 1633 if class_is_multiarch_p 1634 then 1635 printf " fprintf_unfiltered (file,\n" 1636 printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n" 1637 printf " (long) current_gdbarch->${function});\n" 1638 continue 1639 fi 1640 # Print the macro definition. 1641 printf "#ifdef ${macro}\n" 1642 if class_is_function_p 1643 then 1644 printf " fprintf_unfiltered (file,\n" 1645 printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" 1646 printf " \"${macro}(${actual})\",\n" 1647 printf " XSTRING (${macro} (${actual})));\n" 1648 else 1649 printf " fprintf_unfiltered (file,\n" 1650 printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n" 1651 printf " XSTRING (${macro}));\n" 1652 fi 1653 if [ "x${print_p}" = "x()" ] 1654 then 1655 printf " gdbarch_dump_${function} (current_gdbarch);\n" 1656 elif [ "x${print_p}" = "x0" ] 1657 then 1658 printf " /* skip print of ${macro}, print_p == 0. */\n" 1659 elif [ -n "${print_p}" ] 1660 then 1661 printf " if (${print_p})\n" 1662 printf " fprintf_unfiltered (file,\n" 1663 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}" 1664 printf " ${print});\n" 1665 elif class_is_function_p 1666 then 1667 printf " fprintf_unfiltered (file,\n" 1668 printf " \"gdbarch_dump: ${macro} = <0x%%08lx>\\\\n\",\n" 1669 printf " (long) current_gdbarch->${function}\n" 1670 printf " /*${macro} ()*/);\n" 1671 else 1672 printf " fprintf_unfiltered (file,\n" 1673 printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}" 1674 printf " ${print});\n" 1675 fi 1676 printf "#endif\n" 1677done 1678cat <<EOF 1679 if (current_gdbarch->dump_tdep != NULL) 1680 current_gdbarch->dump_tdep (current_gdbarch, file); 1681} 1682EOF 1683 1684 1685# GET/SET 1686printf "\n" 1687cat <<EOF 1688struct gdbarch_tdep * 1689gdbarch_tdep (struct gdbarch *gdbarch) 1690{ 1691 if (gdbarch_debug >= 2) 1692 fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); 1693 return gdbarch->tdep; 1694} 1695EOF 1696printf "\n" 1697function_list | while do_read 1698do 1699 if class_is_predicate_p 1700 then 1701 printf "\n" 1702 printf "int\n" 1703 printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" 1704 printf "{\n" 1705 printf " gdb_assert (gdbarch != NULL);\n" 1706 printf " return ${predicate};\n" 1707 printf "}\n" 1708 fi 1709 if class_is_function_p 1710 then 1711 printf "\n" 1712 printf "${returntype}\n" 1713 if [ "x${formal}" = "xvoid" ] 1714 then 1715 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" 1716 else 1717 printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" 1718 fi 1719 printf "{\n" 1720 printf " gdb_assert (gdbarch != NULL);\n" 1721 printf " gdb_assert (gdbarch->${function} != NULL);\n" 1722 if class_is_predicate_p && test -n "${predefault}" 1723 then 1724 # Allow a call to a function with a predicate. 1725 printf " /* Do not check predicate: ${predicate}, allow call. */\n" 1726 fi 1727 printf " if (gdbarch_debug >= 2)\n" 1728 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" 1729 if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] 1730 then 1731 if class_is_multiarch_p 1732 then 1733 params="gdbarch" 1734 else 1735 params="" 1736 fi 1737 else 1738 if class_is_multiarch_p 1739 then 1740 params="gdbarch, ${actual}" 1741 else 1742 params="${actual}" 1743 fi 1744 fi 1745 if [ "x${returntype}" = "xvoid" ] 1746 then 1747 printf " gdbarch->${function} (${params});\n" 1748 else 1749 printf " return gdbarch->${function} (${params});\n" 1750 fi 1751 printf "}\n" 1752 printf "\n" 1753 printf "void\n" 1754 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" 1755 printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" 1756 printf "{\n" 1757 printf " gdbarch->${function} = ${function};\n" 1758 printf "}\n" 1759 elif class_is_variable_p 1760 then 1761 printf "\n" 1762 printf "${returntype}\n" 1763 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" 1764 printf "{\n" 1765 printf " gdb_assert (gdbarch != NULL);\n" 1766 if [ "x${invalid_p}" = "x0" ] 1767 then 1768 printf " /* Skip verify of ${function}, invalid_p == 0 */\n" 1769 elif [ -n "${invalid_p}" ] 1770 then 1771 printf " /* Check variable is valid. */\n" 1772 printf " gdb_assert (!(${invalid_p}));\n" 1773 elif [ -n "${predefault}" ] 1774 then 1775 printf " /* Check variable changed from pre-default. */\n" 1776 printf " gdb_assert (gdbarch->${function} != ${predefault});\n" 1777 fi 1778 printf " if (gdbarch_debug >= 2)\n" 1779 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" 1780 printf " return gdbarch->${function};\n" 1781 printf "}\n" 1782 printf "\n" 1783 printf "void\n" 1784 printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" 1785 printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" 1786 printf "{\n" 1787 printf " gdbarch->${function} = ${function};\n" 1788 printf "}\n" 1789 elif class_is_info_p 1790 then 1791 printf "\n" 1792 printf "${returntype}\n" 1793 printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" 1794 printf "{\n" 1795 printf " gdb_assert (gdbarch != NULL);\n" 1796 printf " if (gdbarch_debug >= 2)\n" 1797 printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" 1798 printf " return gdbarch->${function};\n" 1799 printf "}\n" 1800 fi 1801done 1802 1803# All the trailing guff 1804cat <<EOF 1805 1806 1807/* Keep a registry of per-architecture data-pointers required by GDB 1808 modules. */ 1809 1810struct gdbarch_data 1811{ 1812 unsigned index; 1813 int init_p; 1814 gdbarch_data_init_ftype *init; 1815}; 1816 1817struct gdbarch_data_registration 1818{ 1819 struct gdbarch_data *data; 1820 struct gdbarch_data_registration *next; 1821}; 1822 1823struct gdbarch_data_registry 1824{ 1825 unsigned nr; 1826 struct gdbarch_data_registration *registrations; 1827}; 1828 1829struct gdbarch_data_registry gdbarch_data_registry = 1830{ 1831 0, NULL, 1832}; 1833 1834struct gdbarch_data * 1835register_gdbarch_data (gdbarch_data_init_ftype *init) 1836{ 1837 struct gdbarch_data_registration **curr; 1838 /* Append the new registraration. */ 1839 for (curr = &gdbarch_data_registry.registrations; 1840 (*curr) != NULL; 1841 curr = &(*curr)->next); 1842 (*curr) = XMALLOC (struct gdbarch_data_registration); 1843 (*curr)->next = NULL; 1844 (*curr)->data = XMALLOC (struct gdbarch_data); 1845 (*curr)->data->index = gdbarch_data_registry.nr++; 1846 (*curr)->data->init = init; 1847 (*curr)->data->init_p = 1; 1848 return (*curr)->data; 1849} 1850 1851 1852/* Create/delete the gdbarch data vector. */ 1853 1854static void 1855alloc_gdbarch_data (struct gdbarch *gdbarch) 1856{ 1857 gdb_assert (gdbarch->data == NULL); 1858 gdbarch->nr_data = gdbarch_data_registry.nr; 1859 gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); 1860} 1861 1862/* Initialize the current value of the specified per-architecture 1863 data-pointer. */ 1864 1865void 1866set_gdbarch_data (struct gdbarch *gdbarch, 1867 struct gdbarch_data *data, 1868 void *pointer) 1869{ 1870 gdb_assert (data->index < gdbarch->nr_data); 1871 gdb_assert (gdbarch->data[data->index] == NULL); 1872 gdbarch->data[data->index] = pointer; 1873} 1874 1875/* Return the current value of the specified per-architecture 1876 data-pointer. */ 1877 1878void * 1879gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) 1880{ 1881 gdb_assert (data->index < gdbarch->nr_data); 1882 /* The data-pointer isn't initialized, call init() to get a value but 1883 only if the architecture initializaiton has completed. Otherwise 1884 punt - hope that the caller knows what they are doing. */ 1885 if (gdbarch->data[data->index] == NULL 1886 && gdbarch->initialized_p) 1887 { 1888 /* Be careful to detect an initialization cycle. */ 1889 gdb_assert (data->init_p); 1890 data->init_p = 0; 1891 gdb_assert (data->init != NULL); 1892 gdbarch->data[data->index] = data->init (gdbarch); 1893 data->init_p = 1; 1894 gdb_assert (gdbarch->data[data->index] != NULL); 1895 } 1896 return gdbarch->data[data->index]; 1897} 1898 1899 1900 1901/* Keep a registry of swapped data required by GDB modules. */ 1902 1903struct gdbarch_swap 1904{ 1905 void *swap; 1906 struct gdbarch_swap_registration *source; 1907 struct gdbarch_swap *next; 1908}; 1909 1910struct gdbarch_swap_registration 1911{ 1912 void *data; 1913 unsigned long sizeof_data; 1914 gdbarch_swap_ftype *init; 1915 struct gdbarch_swap_registration *next; 1916}; 1917 1918struct gdbarch_swap_registry 1919{ 1920 int nr; 1921 struct gdbarch_swap_registration *registrations; 1922}; 1923 1924struct gdbarch_swap_registry gdbarch_swap_registry = 1925{ 1926 0, NULL, 1927}; 1928 1929void 1930deprecated_register_gdbarch_swap (void *data, 1931 unsigned long sizeof_data, 1932 gdbarch_swap_ftype *init) 1933{ 1934 struct gdbarch_swap_registration **rego; 1935 for (rego = &gdbarch_swap_registry.registrations; 1936 (*rego) != NULL; 1937 rego = &(*rego)->next); 1938 (*rego) = XMALLOC (struct gdbarch_swap_registration); 1939 (*rego)->next = NULL; 1940 (*rego)->init = init; 1941 (*rego)->data = data; 1942 (*rego)->sizeof_data = sizeof_data; 1943} 1944 1945static void 1946current_gdbarch_swap_init_hack (void) 1947{ 1948 struct gdbarch_swap_registration *rego; 1949 struct gdbarch_swap **curr = ¤t_gdbarch->swap; 1950 for (rego = gdbarch_swap_registry.registrations; 1951 rego != NULL; 1952 rego = rego->next) 1953 { 1954 if (rego->data != NULL) 1955 { 1956 (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch, 1957 struct gdbarch_swap); 1958 (*curr)->source = rego; 1959 (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch, 1960 rego->sizeof_data); 1961 (*curr)->next = NULL; 1962 curr = &(*curr)->next; 1963 } 1964 if (rego->init != NULL) 1965 rego->init (); 1966 } 1967} 1968 1969static struct gdbarch * 1970current_gdbarch_swap_out_hack (void) 1971{ 1972 struct gdbarch *old_gdbarch = current_gdbarch; 1973 struct gdbarch_swap *curr; 1974 1975 gdb_assert (old_gdbarch != NULL); 1976 for (curr = old_gdbarch->swap; 1977 curr != NULL; 1978 curr = curr->next) 1979 { 1980 memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); 1981 memset (curr->source->data, 0, curr->source->sizeof_data); 1982 } 1983 current_gdbarch = NULL; 1984 return old_gdbarch; 1985} 1986 1987static void 1988current_gdbarch_swap_in_hack (struct gdbarch *new_gdbarch) 1989{ 1990 struct gdbarch_swap *curr; 1991 1992 gdb_assert (current_gdbarch == NULL); 1993 for (curr = new_gdbarch->swap; 1994 curr != NULL; 1995 curr = curr->next) 1996 memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); 1997 current_gdbarch = new_gdbarch; 1998} 1999 2000 2001/* Keep a registry of the architectures known by GDB. */ 2002 2003struct gdbarch_registration 2004{ 2005 enum bfd_architecture bfd_architecture; 2006 gdbarch_init_ftype *init; 2007 gdbarch_dump_tdep_ftype *dump_tdep; 2008 struct gdbarch_list *arches; 2009 struct gdbarch_registration *next; 2010}; 2011 2012static struct gdbarch_registration *gdbarch_registry = NULL; 2013 2014static void 2015append_name (const char ***buf, int *nr, const char *name) 2016{ 2017 *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1)); 2018 (*buf)[*nr] = name; 2019 *nr += 1; 2020} 2021 2022const char ** 2023gdbarch_printable_names (void) 2024{ 2025 /* Accumulate a list of names based on the registed list of 2026 architectures. */ 2027 enum bfd_architecture a; 2028 int nr_arches = 0; 2029 const char **arches = NULL; 2030 struct gdbarch_registration *rego; 2031 for (rego = gdbarch_registry; 2032 rego != NULL; 2033 rego = rego->next) 2034 { 2035 const struct bfd_arch_info *ap; 2036 ap = bfd_lookup_arch (rego->bfd_architecture, 0); 2037 if (ap == NULL) 2038 internal_error (__FILE__, __LINE__, 2039 "gdbarch_architecture_names: multi-arch unknown"); 2040 do 2041 { 2042 append_name (&arches, &nr_arches, ap->printable_name); 2043 ap = ap->next; 2044 } 2045 while (ap != NULL); 2046 } 2047 append_name (&arches, &nr_arches, NULL); 2048 return arches; 2049} 2050 2051 2052void 2053gdbarch_register (enum bfd_architecture bfd_architecture, 2054 gdbarch_init_ftype *init, 2055 gdbarch_dump_tdep_ftype *dump_tdep) 2056{ 2057 struct gdbarch_registration **curr; 2058 const struct bfd_arch_info *bfd_arch_info; 2059 /* Check that BFD recognizes this architecture */ 2060 bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); 2061 if (bfd_arch_info == NULL) 2062 { 2063 internal_error (__FILE__, __LINE__, 2064 "gdbarch: Attempt to register unknown architecture (%d)", 2065 bfd_architecture); 2066 } 2067 /* Check that we haven't seen this architecture before */ 2068 for (curr = &gdbarch_registry; 2069 (*curr) != NULL; 2070 curr = &(*curr)->next) 2071 { 2072 if (bfd_architecture == (*curr)->bfd_architecture) 2073 internal_error (__FILE__, __LINE__, 2074 "gdbarch: Duplicate registraration of architecture (%s)", 2075 bfd_arch_info->printable_name); 2076 } 2077 /* log it */ 2078 if (gdbarch_debug) 2079 fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", 2080 bfd_arch_info->printable_name, 2081 (long) init); 2082 /* Append it */ 2083 (*curr) = XMALLOC (struct gdbarch_registration); 2084 (*curr)->bfd_architecture = bfd_architecture; 2085 (*curr)->init = init; 2086 (*curr)->dump_tdep = dump_tdep; 2087 (*curr)->arches = NULL; 2088 (*curr)->next = NULL; 2089} 2090 2091void 2092register_gdbarch_init (enum bfd_architecture bfd_architecture, 2093 gdbarch_init_ftype *init) 2094{ 2095 gdbarch_register (bfd_architecture, init, NULL); 2096} 2097 2098 2099/* Look for an architecture using gdbarch_info. Base search on only 2100 BFD_ARCH_INFO and BYTE_ORDER. */ 2101 2102struct gdbarch_list * 2103gdbarch_list_lookup_by_info (struct gdbarch_list *arches, 2104 const struct gdbarch_info *info) 2105{ 2106 for (; arches != NULL; arches = arches->next) 2107 { 2108 if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) 2109 continue; 2110 if (info->byte_order != arches->gdbarch->byte_order) 2111 continue; 2112 if (info->osabi != arches->gdbarch->osabi) 2113 continue; 2114 return arches; 2115 } 2116 return NULL; 2117} 2118 2119 2120/* Find an architecture that matches the specified INFO. Create a new 2121 architecture if needed. Return that new architecture. Assumes 2122 that there is no current architecture. */ 2123 2124static struct gdbarch * 2125find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info) 2126{ 2127 struct gdbarch *new_gdbarch; 2128 struct gdbarch_registration *rego; 2129 2130 /* The existing architecture has been swapped out - all this code 2131 works from a clean slate. */ 2132 gdb_assert (current_gdbarch == NULL); 2133 2134 /* Fill in missing parts of the INFO struct using a number of 2135 sources: "set ..."; INFOabfd supplied; and the existing 2136 architecture. */ 2137 gdbarch_info_fill (old_gdbarch, &info); 2138 2139 /* Must have found some sort of architecture. */ 2140 gdb_assert (info.bfd_arch_info != NULL); 2141 2142 if (gdbarch_debug) 2143 { 2144 fprintf_unfiltered (gdb_stdlog, 2145 "find_arch_by_info: info.bfd_arch_info %s\n", 2146 (info.bfd_arch_info != NULL 2147 ? info.bfd_arch_info->printable_name 2148 : "(null)")); 2149 fprintf_unfiltered (gdb_stdlog, 2150 "find_arch_by_info: info.byte_order %d (%s)\n", 2151 info.byte_order, 2152 (info.byte_order == BFD_ENDIAN_BIG ? "big" 2153 : info.byte_order == BFD_ENDIAN_LITTLE ? "little" 2154 : "default")); 2155 fprintf_unfiltered (gdb_stdlog, 2156 "find_arch_by_info: info.osabi %d (%s)\n", 2157 info.osabi, gdbarch_osabi_name (info.osabi)); 2158 fprintf_unfiltered (gdb_stdlog, 2159 "find_arch_by_info: info.abfd 0x%lx\n", 2160 (long) info.abfd); 2161 fprintf_unfiltered (gdb_stdlog, 2162 "find_arch_by_info: info.tdep_info 0x%lx\n", 2163 (long) info.tdep_info); 2164 } 2165 2166 /* Find the tdep code that knows about this architecture. */ 2167 for (rego = gdbarch_registry; 2168 rego != NULL; 2169 rego = rego->next) 2170 if (rego->bfd_architecture == info.bfd_arch_info->arch) 2171 break; 2172 if (rego == NULL) 2173 { 2174 if (gdbarch_debug) 2175 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " 2176 "No matching architecture\n"); 2177 return 0; 2178 } 2179 2180 /* Ask the tdep code for an architecture that matches "info". */ 2181 new_gdbarch = rego->init (info, rego->arches); 2182 2183 /* Did the tdep code like it? No. Reject the change and revert to 2184 the old architecture. */ 2185 if (new_gdbarch == NULL) 2186 { 2187 if (gdbarch_debug) 2188 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " 2189 "Target rejected architecture\n"); 2190 return NULL; 2191 } 2192 2193 /* Is this a pre-existing architecture (as determined by already 2194 being initialized)? Move it to the front of the architecture 2195 list (keeping the list sorted Most Recently Used). */ 2196 if (new_gdbarch->initialized_p) 2197 { 2198 struct gdbarch_list **list; 2199 struct gdbarch_list *this; 2200 if (gdbarch_debug) 2201 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " 2202 "Previous architecture 0x%08lx (%s) selected\n", 2203 (long) new_gdbarch, 2204 new_gdbarch->bfd_arch_info->printable_name); 2205 /* Find the existing arch in the list. */ 2206 for (list = ®o->arches; 2207 (*list) != NULL && (*list)->gdbarch != new_gdbarch; 2208 list = &(*list)->next); 2209 /* It had better be in the list of architectures. */ 2210 gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); 2211 /* Unlink THIS. */ 2212 this = (*list); 2213 (*list) = this->next; 2214 /* Insert THIS at the front. */ 2215 this->next = rego->arches; 2216 rego->arches = this; 2217 /* Return it. */ 2218 return new_gdbarch; 2219 } 2220 2221 /* It's a new architecture. */ 2222 if (gdbarch_debug) 2223 fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " 2224 "New architecture 0x%08lx (%s) selected\n", 2225 (long) new_gdbarch, 2226 new_gdbarch->bfd_arch_info->printable_name); 2227 2228 /* Insert the new architecture into the front of the architecture 2229 list (keep the list sorted Most Recently Used). */ 2230 { 2231 struct gdbarch_list *this = XMALLOC (struct gdbarch_list); 2232 this->next = rego->arches; 2233 this->gdbarch = new_gdbarch; 2234 rego->arches = this; 2235 } 2236 2237 /* Check that the newly installed architecture is valid. Plug in 2238 any post init values. */ 2239 new_gdbarch->dump_tdep = rego->dump_tdep; 2240 verify_gdbarch (new_gdbarch); 2241 new_gdbarch->initialized_p = 1; 2242 2243 /* Initialize any per-architecture swap areas. This phase requires 2244 a valid global CURRENT_GDBARCH. Set it momentarially, and then 2245 swap the entire architecture out. */ 2246 current_gdbarch = new_gdbarch; 2247 current_gdbarch_swap_init_hack (); 2248 current_gdbarch_swap_out_hack (); 2249 2250 if (gdbarch_debug) 2251 gdbarch_dump (new_gdbarch, gdb_stdlog); 2252 2253 return new_gdbarch; 2254} 2255 2256struct gdbarch * 2257gdbarch_find_by_info (struct gdbarch_info info) 2258{ 2259 /* Save the previously selected architecture, setting the global to 2260 NULL. This stops things like gdbarch->init() trying to use the 2261 previous architecture's configuration. The previous architecture 2262 may not even be of the same architecture family. The most recent 2263 architecture of the same family is found at the head of the 2264 rego->arches list. */ 2265 struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack (); 2266 2267 /* Find the specified architecture. */ 2268 struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info); 2269 2270 /* Restore the existing architecture. */ 2271 gdb_assert (current_gdbarch == NULL); 2272 current_gdbarch_swap_in_hack (old_gdbarch); 2273 2274 return new_gdbarch; 2275} 2276 2277/* Make the specified architecture current, swapping the existing one 2278 out. */ 2279 2280void 2281deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch) 2282{ 2283 gdb_assert (new_gdbarch != NULL); 2284 gdb_assert (current_gdbarch != NULL); 2285 gdb_assert (new_gdbarch->initialized_p); 2286 current_gdbarch_swap_out_hack (); 2287 current_gdbarch_swap_in_hack (new_gdbarch); 2288 architecture_changed_event (); 2289} 2290 2291extern void _initialize_gdbarch (void); 2292 2293void 2294_initialize_gdbarch (void) 2295{ 2296 struct cmd_list_element *c; 2297 2298 add_show_from_set (add_set_cmd ("arch", 2299 class_maintenance, 2300 var_zinteger, 2301 (char *)&gdbarch_debug, 2302 "Set architecture debugging.\\n\\ 2303When non-zero, architecture debugging is enabled.", &setdebuglist), 2304 &showdebuglist); 2305 c = add_set_cmd ("archdebug", 2306 class_maintenance, 2307 var_zinteger, 2308 (char *)&gdbarch_debug, 2309 "Set architecture debugging.\\n\\ 2310When non-zero, architecture debugging is enabled.", &setlist); 2311 2312 deprecate_cmd (c, "set debug arch"); 2313 deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch"); 2314} 2315EOF 2316 2317# close things off 2318exec 1>&2 2319#../move-if-change new-gdbarch.c gdbarch.c 2320compare_new gdbarch.c 2321