#!/bin/sh -u # Architecture commands for GDB, the GNU debugger. # Copyright 1998, 1999, 2000, 2001 Free Software Foundation, Inc. # # This file is part of GDB. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. compare_new () { file=$1 if test ! -r ${file} then echo "${file} missing? cp new-${file} ${file}" 1>&2 elif diff -c ${file} new-${file} then echo "${file} unchanged" 1>&2 else echo "${file} has changed? cp new-${file} ${file}" 1>&2 fi } # Format of the input table read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description" do_read () { comment="" class="" while read line do if test "${line}" = "" then continue elif test "${line}" = "#" -a "${comment}" = "" then continue elif expr "${line}" : "#" > /dev/null then comment="${comment} ${line}" else # The semantics of IFS varies between different SH's. Some # treat ``::' as three fields while some treat it as just too. # Work around this by eliminating ``::'' .... line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`" OFS="${IFS}" ; IFS="[:]" eval read ${read} < line disable # f -> function # hiding a function # F -> function + predicate # hiding a function + predicate to test function validity # v -> variable # hiding a variable # V -> variable + predicate # hiding a variable + predicate to test variables validity # i -> set from info # hiding something from the ``struct info'' object # m -> multi-arch function # hiding a multi-arch function (parameterised with the architecture) # M -> multi-arch function + predicate # hiding a multi-arch function + predicate to test function validity level ) : ;; # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= # LEVEL is a predicate on checking that a given method is # initialized (using INVALID_P). macro ) : ;; # The name of the MACRO that this method is to be accessed by. returntype ) : ;; # For functions, the return type; for variables, the data type function ) : ;; # For functions, the member function name; for variables, the # variable name. Member function names are always prefixed with # ``gdbarch_'' for name-space purity. formal ) : ;; # The formal argument list. It is assumed that the formal # argument list includes the actual name of each list element. # A function with no arguments shall have ``void'' as the # formal argument list. actual ) : ;; # The list of actual arguments. The arguments specified shall # match the FORMAL list given above. Functions with out # arguments leave this blank. attrib ) : ;; # Any GCC attributes that should be attached to the function # declaration. At present this field is unused. staticdefault ) : ;; # To help with the GDB startup a static gdbarch object is # created. STATICDEFAULT is the value to insert into that # static gdbarch object. Since this a static object only # simple expressions can be used. # If STATICDEFAULT is empty, zero is used. predefault ) : ;; # An initial value to assign to MEMBER of the freshly # malloc()ed gdbarch object. After initialization, the # freshly malloc()ed object is passed to the target # architecture code for further updates. # If PREDEFAULT is empty, zero is used. # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero # INVALID_P are specified, PREDEFAULT will be used as the # default for the non- multi-arch target. # A zero PREDEFAULT function will force the fallback to call # internal_error(). # Variable declarations can refer to ``gdbarch'' which will # contain the current architecture. Care should be taken. postdefault ) : ;; # A value to assign to MEMBER of the new gdbarch object should # the target architecture code fail to change the PREDEFAULT # value. # If POSTDEFAULT is empty, no post update is performed. # If both INVALID_P and POSTDEFAULT are non-empty then # INVALID_P will be used to determine if MEMBER should be # changed to POSTDEFAULT. # If a non-empty POSTDEFAULT and a zero INVALID_P are # specified, POSTDEFAULT will be used as the default for the # non- multi-arch target (regardless of the value of # PREDEFAULT). # You cannot specify both a zero INVALID_P and a POSTDEFAULT. # Variable declarations can refer to ``gdbarch'' which will # contain the current architecture. Care should be taken. invalid_p ) : ;; # A predicate equation that validates MEMBER. Non-zero is # returned if the code creating the new architecture failed to # initialize MEMBER or the initialized the member is invalid. # If POSTDEFAULT is non-empty then MEMBER will be updated to # that value. If POSTDEFAULT is empty then internal_error() # is called. # If INVALID_P is empty, a check that MEMBER is no longer # equal to PREDEFAULT is used. # The expression ``0'' disables the INVALID_P check making # PREDEFAULT a legitimate value. # See also PREDEFAULT and POSTDEFAULT. fmt ) : ;; # printf style format string that can be used to print out the # MEMBER. Sometimes "%s" is useful. For functions, this is # ignored and the function address is printed. # If FMT is empty, ``%ld'' is used. print ) : ;; # An optional equation that casts MEMBER to a value suitable # for formatting by FMT. # If PRINT is empty, ``(long)'' is used. print_p ) : ;; # An optional indicator for any predicte to wrap around the # print member code. # () -> Call a custom function to do the dump. # exp -> Wrap print up in ``if (${print_p}) ... # ``'' -> No predicate # If PRINT_P is empty, ``1'' is always used. description ) : ;; # Currently unused. *) exit 1;; esac done function_list () { # See below (DOCO) for description of each field cat <printable_name:TARGET_ARCHITECTURE != NULL # i:2:TARGET_BYTE_ORDER:int:byte_order::::BFD_ENDIAN_BIG # Number of bits in a char or unsigned char for the target machine. # Just like CHAR_BIT in but describes the target machine. # v::TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: # # Number of bits in a short or unsigned short for the target machine. v::TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):2*TARGET_CHAR_BIT::0 # Number of bits in an int or unsigned int for the target machine. v::TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):4*TARGET_CHAR_BIT::0 # Number of bits in a long or unsigned long for the target machine. v::TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):4*TARGET_CHAR_BIT::0 # Number of bits in a long long or unsigned long long for the target # machine. v::TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):2*TARGET_LONG_BIT::0 # Number of bits in a float for the target machine. v::TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):4*TARGET_CHAR_BIT::0 # Number of bits in a double for the target machine. v::TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):8*TARGET_CHAR_BIT::0 # Number of bits in a long double for the target machine. v::TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):2*TARGET_DOUBLE_BIT::0 # For most targets, a pointer on the target and its representation as an # address in GDB have the same size and "look the same". For such a # target, you need only set TARGET_PTR_BIT / ptr_bit and TARGET_ADDR_BIT # / addr_bit will be set from it. # # If TARGET_PTR_BIT and TARGET_ADDR_BIT are different, you'll probably # also need to set POINTER_TO_ADDRESS and ADDRESS_TO_POINTER as well. # # ptr_bit is the size of a pointer on the target v::TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):TARGET_INT_BIT::0 # addr_bit is the size of a target address as represented in gdb v::TARGET_ADDR_BIT:int:addr_bit::::8 * sizeof (void*):0:TARGET_PTR_BIT: # Number of bits in a BFD_VMA for the target object file format. v::TARGET_BFD_VMA_BIT:int:bfd_vma_bit::::8 * sizeof (void*):TARGET_ARCHITECTURE->bits_per_address::0 # # One if \`char' acts like \`signed char', zero if \`unsigned char'. v::TARGET_CHAR_SIGNED:int:char_signed::::1:-1:1:::: # f::TARGET_READ_PC:CORE_ADDR:read_pc:ptid_t ptid:ptid::0:generic_target_read_pc::0 f::TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid::0:generic_target_write_pc::0 f::TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:generic_target_read_fp::0 f::TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:generic_target_write_fp::0 f::TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:generic_target_read_sp::0 f::TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:generic_target_write_sp::0 # Function for getting target's idea of a frame pointer. FIXME: GDB's # whole scheme for dealing with "frames" and "frame pointers" needs a # serious shakedown. f::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 # M:::void:register_read:int regnum, char *buf:regnum, buf: M:::void:register_write:int regnum, char *buf:regnum, buf: # v:2:NUM_REGS:int:num_regs::::0:-1 # This macro gives the number of pseudo-registers that live in the # register namespace but do not get fetched or stored on the target. # These pseudo-registers may be aliases for other registers, # combinations of other registers, or they may be computed by GDB. v:2:NUM_PSEUDO_REGS:int:num_pseudo_regs::::0:0::0::: v:2:SP_REGNUM:int:sp_regnum::::0:-1 v:2:FP_REGNUM:int:fp_regnum::::0:-1 v:2:PC_REGNUM:int:pc_regnum::::0:-1 v:2:FP0_REGNUM:int:fp0_regnum::::0:-1::0 v:2:NPC_REGNUM:int:npc_regnum::::0:-1::0 v:2:NNPC_REGNUM:int:nnpc_regnum::::0:-1::0 # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. f:2:STAB_REG_TO_REGNUM:int:stab_reg_to_regnum:int stab_regnr:stab_regnr:::no_op_reg_to_regnum::0 # Provide a default mapping from a ecoff register number to a gdb REGNUM. f:2:ECOFF_REG_TO_REGNUM:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr:::no_op_reg_to_regnum::0 # Provide a default mapping from a DWARF register number to a gdb REGNUM. f:2:DWARF_REG_TO_REGNUM:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr:::no_op_reg_to_regnum::0 # Convert from an sdb register number to an internal gdb register number. # This should be defined in tm.h, if REGISTER_NAMES is not set up # to map one to one onto the sdb register numbers. f:2:SDB_REG_TO_REGNUM:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr:::no_op_reg_to_regnum::0 f:2:DWARF2_REG_TO_REGNUM:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr:::no_op_reg_to_regnum::0 f:2:REGISTER_NAME:char *:register_name:int regnr:regnr:::legacy_register_name::0 v:2:REGISTER_SIZE:int:register_size::::0:-1 v:2:REGISTER_BYTES:int:register_bytes::::0:-1 f:2:REGISTER_BYTE:int:register_byte:int reg_nr:reg_nr::0:0 f:2:REGISTER_RAW_SIZE:int:register_raw_size:int reg_nr:reg_nr::generic_register_raw_size:0 v:2:MAX_REGISTER_RAW_SIZE:int:max_register_raw_size::::0:-1 f:2:REGISTER_VIRTUAL_SIZE:int:register_virtual_size:int reg_nr:reg_nr::generic_register_virtual_size:0 v:2:MAX_REGISTER_VIRTUAL_SIZE:int:max_register_virtual_size::::0:-1 f:2:REGISTER_VIRTUAL_TYPE:struct type *:register_virtual_type:int reg_nr:reg_nr::0:0 f:2:DO_REGISTERS_INFO:void:do_registers_info:int reg_nr, int fpregs:reg_nr, fpregs:::do_registers_info::0 # MAP a GDB RAW register number onto a simulator register number. See # also include/...-sim.h. f:2:REGISTER_SIM_REGNO:int:register_sim_regno:int reg_nr:reg_nr:::default_register_sim_regno::0 F:2:REGISTER_BYTES_OK:int:register_bytes_ok:long nr_bytes:nr_bytes::0:0 f:2:CANNOT_FETCH_REGISTER:int:cannot_fetch_register:int regnum:regnum:::cannot_register_not::0 f:2:CANNOT_STORE_REGISTER:int:cannot_store_register:int regnum:regnum:::cannot_register_not::0 # v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 v:1:CALL_DUMMY_LOCATION:int:call_dummy_location::::0:0 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 v:2:CALL_DUMMY_START_OFFSET:CORE_ADDR:call_dummy_start_offset::::0:-1:::0x%08lx v:2:CALL_DUMMY_BREAKPOINT_OFFSET:CORE_ADDR:call_dummy_breakpoint_offset::::0:-1::gdbarch->call_dummy_breakpoint_offset_p && gdbarch->call_dummy_breakpoint_offset == -1:0x%08lx::CALL_DUMMY_BREAKPOINT_OFFSET_P v:1:CALL_DUMMY_BREAKPOINT_OFFSET_P:int:call_dummy_breakpoint_offset_p::::0:-1 v:2:CALL_DUMMY_LENGTH:int:call_dummy_length::::0:-1:::::CALL_DUMMY_LOCATION == BEFORE_TEXT_END || CALL_DUMMY_LOCATION == AFTER_TEXT_END f:1: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 v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:legacy_call_dummy_words::0:0x%08lx v:2:SIZEOF_CALL_DUMMY_WORDS:int:sizeof_call_dummy_words::::0:legacy_sizeof_call_dummy_words::0:0x%08lx v:1:CALL_DUMMY_STACK_ADJUST_P:int:call_dummy_stack_adjust_p::::0:-1:::0x%08lx 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 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 f:2:INIT_FRAME_PC_FIRST:void:init_frame_pc_first:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_noop::0 f:2:INIT_FRAME_PC:void:init_frame_pc:int fromleaf, struct frame_info *prev:fromleaf, prev:::init_frame_pc_default::0 # v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::::: v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::::: f:2:COERCE_FLOAT_TO_DOUBLE:int:coerce_float_to_double:struct type *formal, struct type *actual:formal, actual:::default_coerce_float_to_double::0 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 # f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr:::generic_register_convertible_not::0 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 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 # This function is called when the value of a pseudo-register needs to # be updated. Typically it will be defined on a per-architecture # basis. F:2:FETCH_PSEUDO_REGISTER:void:fetch_pseudo_register:int regnum:regnum: # This function is called when the value of a pseudo-register needs to # be set or stored. Typically it will be defined on a # per-architecture basis. F:2:STORE_PSEUDO_REGISTER:void:store_pseudo_register:int regnum:regnum: # f:2:POINTER_TO_ADDRESS:CORE_ADDR:pointer_to_address:struct type *type, void *buf:type, buf:::unsigned_pointer_to_address::0 f:2:ADDRESS_TO_POINTER:void:address_to_pointer:struct type *type, void *buf, CORE_ADDR addr:type, buf, addr:::unsigned_address_to_pointer::0 F:2:INTEGER_TO_ADDRESS:CORE_ADDR:integer_to_address:struct type *type, void *buf:type, buf # f:2:RETURN_VALUE_ON_STACK:int:return_value_on_stack:struct type *type:type:::generic_return_value_on_stack_not::0 f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 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 f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0 F:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp:::0 f:2:POP_FRAME:void:pop_frame:void:-:::0 # f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp:::0 f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf:::0 F:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf:::0 f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type:::generic_use_struct_convention::0 # f:2:FRAME_INIT_SAVED_REGS:void:frame_init_saved_regs:struct frame_info *frame:frame::0:0 F:2:INIT_EXTRA_FRAME_INFO:void:init_extra_frame_info:int fromleaf, struct frame_info *frame:fromleaf, frame:::0 # f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 f:2:PROLOGUE_FRAMELESS_P:int:prologue_frameless_p:CORE_ADDR ip:ip::0:generic_prologue_frameless_p::0 f:2:INNER_THAN:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs::0:0 f:2:BREAKPOINT_FROM_PC:unsigned char *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr:::legacy_breakpoint_from_pc::0 f:2:MEMORY_INSERT_BREAKPOINT:int:memory_insert_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_insert_breakpoint::0 f:2:MEMORY_REMOVE_BREAKPOINT:int:memory_remove_breakpoint:CORE_ADDR addr, char *contents_cache:addr, contents_cache::0:default_memory_remove_breakpoint::0 v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 f::PREPARE_TO_PROCEED:int:prepare_to_proceed:int select_it:select_it::0:default_prepare_to_proceed::0 v:2:FUNCTION_START_OFFSET:CORE_ADDR:function_start_offset::::0:-1 # 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:::generic_remote_translate_xfer_address::0 # v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 # F:2:STACK_ALIGN:CORE_ADDR:stack_align:CORE_ADDR sp:sp::0:0 v:1:EXTRA_STACK_ALIGNMENT_NEEDED:int:extra_stack_alignment_needed::::0:1::0::: F:2:REG_STRUCT_HAS_ADDR:int:reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type::0:0 F:2:SAVE_DUMMY_FRAME_TOS:void:save_dummy_frame_tos:CORE_ADDR sp:sp::0:0 v:2:PARM_BOUNDARY:int:parm_boundary # v:2:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format::::::default_float_format (gdbarch) v:2:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format::::::default_double_format (gdbarch) v:2:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format::::::&floatformat_unknown f:2:CONVERT_FROM_FUNC_PTR_ADDR:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr:addr:::core_addr_identity::0 # On some machines there are bits in addresses which are not really # part of the address, but are used by the kernel, the hardware, etc. # for special purposes. ADDR_BITS_REMOVE takes out any such bits so # we get a "real" address such as one would find in a symbol table. # This is used only for addresses of instructions, and even then I'm # not sure it's used in all contexts. It exists to deal with there # being a few stray bits in the PC which would mislead us, not as some # sort of generic thing to handle alignment or segmentation (it's # possible it should be in TARGET_READ_PC instead). f:2:ADDR_BITS_REMOVE:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr:::core_addr_identity::0 # FIXME/cagney/2001-01-18: This should be split in two. A target method that indicates if # the target needs software single step. An ISA method to implement it. # # FIXME/cagney/2001-01-18: This should be replaced with something that inserts breakpoints # using the breakpoint system instead of blatting memory directly (as with rs6000). # # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the target can # single step. If not, then implement single step using breakpoints. F:2:SOFTWARE_SINGLE_STEP:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p::0:0 f:2:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, disassemble_info *info:vma, info:::legacy_print_insn::0 f:2:SKIP_TRAMPOLINE_CODE:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc:::generic_skip_trampoline_code::0 # For SVR4 shared libraries, each call goes through a small piece of # trampoline code in the ".plt" section. IN_SOLIB_CALL_TRAMPOLINE evaluates # to nonzero if we are current stopped in one of these. f:2:IN_SOLIB_CALL_TRAMPOLINE:int:in_solib_call_trampoline:CORE_ADDR pc, char *name:pc, name:::generic_in_solib_call_trampoline::0 # A target might have problems with watchpoints as soon as the stack # frame of the current function has been destroyed. This mostly happens # as the first action in a funtion's epilogue. in_function_epilogue_p() # is defined to return a non-zero value if either the given addr is one # instruction after the stack destroying instruction up to the trailing # return instruction or if we can figure out that the stack frame has # already been invalidated regardless of the value of addr. Targets # which don't suffer from that problem could just let this functionality # untouched. m:::int:in_function_epilogue_p:CORE_ADDR addr:addr::0:generic_in_function_epilogue_p::0 # Given a vector of command-line arguments, return a newly allocated # string which, when passed to the create_inferior function, will be # parsed (on Unix systems, by the shell) to yield the same vector. # This function should call error() if the argument vector is not # representable for this target or if this target does not support # command-line arguments. # ARGC is the number of elements in the vector. # ARGV is an array of strings, one per argument. m::CONSTRUCT_INFERIOR_ARGUMENTS:char *:construct_inferior_arguments:int argc, char **argv:argc, argv:::construct_inferior_arguments::0 F:2:DWARF2_BUILD_FRAME_INFO:void:dwarf2_build_frame_info:struct objfile *objfile:objfile:::0 EOF } # # The .log file # exec > new-gdbarch.log function_list | while do_read do cat <&2 kill $$ exit 1 fi if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] then echo "Error: postdefault is useless when invalid_p=0" 1>&2 kill $$ exit 1 fi if class_is_multiarch_p then if class_is_predicate_p ; then : elif test "x${predefault}" = "x" then echo "Error: pure multi-arch function must have a predefault" 1>&2 kill $$ exit 1 fi fi echo "" done exec 1>&2 compare_new gdbarch.log copyright () { cat < new-gdbarch.h copyright cat <= GDB_MULTI_ARCH_PURE) && defined (GDB_TM_FILE) #error "GDB_TM_FILE: Pure multi-arch targets do not have a tm.h file." #endif EOF # function typedef's printf "\n" printf "\n" printf "/* The following are pre-initialized by GDBARCH. */\n" function_list | while do_read do if class_is_info_p then printf "\n" printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n" printf "#error \"Non multi-arch definition of ${macro}\"\n" printf "#endif\n" printf "#if GDB_MULTI_ARCH\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n" printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" printf "#endif\n" printf "#endif\n" fi done # function typedef's printf "\n" printf "\n" printf "/* The following are initialized by the target dependent code. */\n" function_list | while do_read do if [ -n "${comment}" ] then echo "${comment}" | sed \ -e '2 s,#,/*,' \ -e '3,$ s,#, ,' \ -e '$ s,$, */,' fi if class_is_multiarch_p then if class_is_predicate_p then printf "\n" printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" fi else if class_is_predicate_p then printf "\n" printf "#if defined (${macro})\n" printf "/* Legacy for systems yet to multi-arch ${macro} */\n" #printf "#if (GDB_MULTI_ARCH <= GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n" printf "#if !defined (${macro}_P)\n" printf "#define ${macro}_P() (1)\n" printf "#endif\n" printf "#endif\n" printf "\n" printf "/* Default predicate for non- multi-arch targets. */\n" printf "#if (!GDB_MULTI_ARCH) && !defined (${macro}_P)\n" printf "#define ${macro}_P() (0)\n" printf "#endif\n" printf "\n" printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro}_P)\n" printf "#error \"Non multi-arch definition of ${macro}\"\n" printf "#endif\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro}_P)\n" printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n" printf "#endif\n" fi fi if class_is_variable_p then if fallback_default_p || class_is_predicate_p then printf "\n" printf "/* Default (value) for non- multi-arch platforms. */\n" printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n" echo "#define ${macro} (${fallbackdefault})" \ | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g' printf "#endif\n" fi printf "\n" printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n" printf "#error \"Non multi-arch definition of ${macro}\"\n" printf "#endif\n" printf "#if GDB_MULTI_ARCH\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n" printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" printf "#endif\n" printf "#endif\n" fi if class_is_function_p then if class_is_multiarch_p ; then : elif fallback_default_p || class_is_predicate_p then printf "\n" printf "/* Default (function) for non- multi-arch platforms. */\n" printf "#if (!GDB_MULTI_ARCH) && !defined (${macro})\n" if [ "x${fallbackdefault}" = "x0" ] then printf "#define ${macro}(${actual}) (internal_error (__FILE__, __LINE__, \"${macro}\"), 0)\n" else # FIXME: Should be passing current_gdbarch through! echo "#define ${macro}(${actual}) (${fallbackdefault} (${actual}))" \ | sed -e 's/\([^a-z_]\)\(gdbarch[^a-z_]\)/\1current_\2/g' fi printf "#endif\n" fi printf "\n" if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p then printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" elif class_is_multiarch_p then printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" else printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" fi if [ "x${formal}" = "xvoid" ] then printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" else printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" fi printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" if class_is_multiarch_p ; then : else printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (${macro})\n" printf "#error \"Non multi-arch definition of ${macro}\"\n" printf "#endif\n" printf "#if GDB_MULTI_ARCH\n" printf "#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (${macro})\n" if [ "x${actual}" = "x" ] then printf "#define ${macro}() (gdbarch_${function} (current_gdbarch))\n" elif [ "x${actual}" = "x-" ] then printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" else printf "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))\n" fi printf "#endif\n" printf "#endif\n" fi fi done # close it off cat <&2 #../move-if-change new-gdbarch.h gdbarch.h compare_new gdbarch.h # # C file # exec > new-gdbarch.c copyright cat < #include "symtab.h" #include "frame.h" #include "inferior.h" #include "breakpoint.h" #include "gdb_wait.h" #include "gdbcore.h" #include "gdbcmd.h" #include "target.h" #include "gdbthread.h" #include "annotate.h" #include "symfile.h" /* for overlay functions */ #include "value.h" /* For old tm.h/nm.h macros. */ #endif #include "symcat.h" #include "floatformat.h" #include "gdb_assert.h" #include "gdb-events.h" /* Static function declarations */ static void verify_gdbarch (struct gdbarch *gdbarch); static void alloc_gdbarch_data (struct gdbarch *); static void init_gdbarch_data (struct gdbarch *); static void free_gdbarch_data (struct gdbarch *); static void init_gdbarch_swap (struct gdbarch *); static void swapout_gdbarch_swap (struct gdbarch *); static void swapin_gdbarch_swap (struct gdbarch *); /* Convenience macro for allocting typesafe memory. */ #ifndef XMALLOC #define XMALLOC(TYPE) (TYPE*) xmalloc (sizeof (TYPE)) #endif /* Non-zero if we want to trace architecture code. */ #ifndef GDBARCH_DEBUG #define GDBARCH_DEBUG 0 #endif int gdbarch_debug = GDBARCH_DEBUG; EOF # gdbarch open the gdbarch object printf "\n" printf "/* Maintain the struct gdbarch object */\n" printf "\n" printf "struct gdbarch\n" printf "{\n" printf " /* basic architectural information */\n" function_list | while do_read do if class_is_info_p then printf " ${returntype} ${function};\n" fi done printf "\n" printf " /* target specific vector. */\n" printf " struct gdbarch_tdep *tdep;\n" printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" printf "\n" printf " /* per-architecture data-pointers */\n" printf " unsigned nr_data;\n" printf " void **data;\n" printf "\n" printf " /* per-architecture swap-regions */\n" printf " struct gdbarch_swap *swap;\n" printf "\n" cat <tdep = tdep; EOF printf "\n" function_list | while do_read do if class_is_info_p then printf " current_gdbarch->${function} = info->${function};\n" fi done printf "\n" printf " /* Force the explicit initialization of these. */\n" function_list | while do_read do if class_is_function_p || class_is_variable_p then if [ -n "${predefault}" -a "x${predefault}" != "x0" ] then printf " current_gdbarch->${function} = ${predefault};\n" fi fi done cat <byte_order == BFD_ENDIAN_UNKNOWN) fprintf_unfiltered (log, "\n\tbyte-order"); if (gdbarch->bfd_arch_info == NULL) fprintf_unfiltered (log, "\n\tbfd_arch_info"); /* Check those that need to be defined for the given multi-arch level. */ EOF function_list | while do_read do if class_is_function_p || class_is_variable_p then if [ "x${invalid_p}" = "x0" ] then printf " /* Skip verify of ${function}, invalid_p == 0 */\n" elif class_is_predicate_p then printf " /* Skip verify of ${function}, has predicate */\n" # FIXME: See do_read for potential simplification elif [ -n "${invalid_p}" -a -n "${postdefault}" ] then printf " if (${invalid_p})\n" printf " gdbarch->${function} = ${postdefault};\n" elif [ -n "${predefault}" -a -n "${postdefault}" ] then printf " if (gdbarch->${function} == ${predefault})\n" printf " gdbarch->${function} = ${postdefault};\n" elif [ -n "${postdefault}" ] then printf " if (gdbarch->${function} == 0)\n" printf " gdbarch->${function} = ${postdefault};\n" elif [ -n "${invalid_p}" ] then printf " if ((GDB_MULTI_ARCH >= ${level})\n" printf " && (${invalid_p}))\n" printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" elif [ -n "${predefault}" ] then printf " if ((GDB_MULTI_ARCH >= ${level})\n" printf " && (gdbarch->${function} == ${predefault}))\n" printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" fi fi done cat < 0) internal_error (__FILE__, __LINE__, "verify_gdbarch: the following are invalid ...%s", buf); do_cleanups (cleanups); } EOF # dump the structure printf "\n" printf "\n" cat <${function});\n" continue fi # Print the macro definition. printf "#ifdef ${macro}\n" if [ "x${returntype}" = "xvoid" ] then printf "#if GDB_MULTI_ARCH\n" printf " /* Macro might contain \`[{}]' when not multi-arch */\n" fi if class_is_function_p then printf " fprintf_unfiltered (file,\n" printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" printf " \"${macro}(${actual})\",\n" printf " XSTRING (${macro} (${actual})));\n" else printf " fprintf_unfiltered (file,\n" printf " \"gdbarch_dump: ${macro} # %%s\\\\n\",\n" printf " XSTRING (${macro}));\n" fi # Print the architecture vector value if [ "x${returntype}" = "xvoid" ] then printf "#endif\n" fi if [ "x${print_p}" = "x()" ] then printf " gdbarch_dump_${function} (current_gdbarch);\n" elif [ "x${print_p}" = "x0" ] then printf " /* skip print of ${macro}, print_p == 0. */\n" elif [ -n "${print_p}" ] then printf " if (${print_p})\n" printf " fprintf_unfiltered (file,\n" printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}" printf " ${print});\n" elif class_is_function_p then printf " if (GDB_MULTI_ARCH)\n" printf " fprintf_unfiltered (file,\n" printf " \"gdbarch_dump: ${macro} = 0x%%08lx\\\\n\",\n" printf " (long) current_gdbarch->${function}\n" printf " /*${macro} ()*/);\n" else printf " fprintf_unfiltered (file,\n" printf " \"gdbarch_dump: ${macro} = %s\\\\n\",\n" "${fmt}" printf " ${print});\n" fi printf "#endif\n" done cat <dump_tdep != NULL) current_gdbarch->dump_tdep (current_gdbarch, file); } EOF # GET/SET printf "\n" cat <= 2) fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); return gdbarch->tdep; } EOF printf "\n" function_list | while do_read do if class_is_predicate_p then printf "\n" printf "int\n" printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" printf "{\n" if [ -n "${valid_p}" ] then printf " return ${valid_p};\n" else printf "#error \"gdbarch_${function}_p: not defined\"\n" fi printf "}\n" fi if class_is_function_p then printf "\n" printf "${returntype}\n" if [ "x${formal}" = "xvoid" ] then printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" else printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" fi printf "{\n" printf " if (gdbarch->${function} == 0)\n" printf " internal_error (__FILE__, __LINE__,\n" printf " \"gdbarch: gdbarch_${function} invalid\");\n" printf " if (gdbarch_debug >= 2)\n" printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] then if class_is_multiarch_p then params="gdbarch" else params="" fi else if class_is_multiarch_p then params="gdbarch, ${actual}" else params="${actual}" fi fi if [ "x${returntype}" = "xvoid" ] then printf " gdbarch->${function} (${params});\n" else printf " return gdbarch->${function} (${params});\n" fi printf "}\n" printf "\n" printf "void\n" printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" printf "{\n" printf " gdbarch->${function} = ${function};\n" printf "}\n" elif class_is_variable_p then printf "\n" printf "${returntype}\n" printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" printf "{\n" if [ "x${invalid_p}" = "x0" ] then printf " /* Skip verify of ${function}, invalid_p == 0 */\n" elif [ -n "${invalid_p}" ] then printf " if (${invalid_p})\n" printf " internal_error (__FILE__, __LINE__,\n" printf " \"gdbarch: gdbarch_${function} invalid\");\n" elif [ -n "${predefault}" ] then printf " if (gdbarch->${function} == ${predefault})\n" printf " internal_error (__FILE__, __LINE__,\n" printf " \"gdbarch: gdbarch_${function} invalid\");\n" fi printf " if (gdbarch_debug >= 2)\n" printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" printf " return gdbarch->${function};\n" printf "}\n" printf "\n" printf "void\n" printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" printf "{\n" printf " gdbarch->${function} = ${function};\n" printf "}\n" elif class_is_info_p then printf "\n" printf "${returntype}\n" printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" printf "{\n" printf " if (gdbarch_debug >= 2)\n" printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" printf " return gdbarch->${function};\n" printf "}\n" fi done # All the trailing guff cat <next); (*curr) = XMALLOC (struct gdbarch_data_registration); (*curr)->next = NULL; (*curr)->data = XMALLOC (struct gdbarch_data); (*curr)->data->index = gdbarch_data_registry.nr++; (*curr)->data->init = init; (*curr)->data->free = free; return (*curr)->data; } /* Walk through all the registered users initializing each in turn. */ static void init_gdbarch_data (struct gdbarch *gdbarch) { struct gdbarch_data_registration *rego; for (rego = gdbarch_data_registry.registrations; rego != NULL; rego = rego->next) { struct gdbarch_data *data = rego->data; gdb_assert (data->index < gdbarch->nr_data); if (data->init != NULL) { void *pointer = data->init (gdbarch); set_gdbarch_data (gdbarch, data, pointer); } } } /* Create/delete the gdbarch data vector. */ static void alloc_gdbarch_data (struct gdbarch *gdbarch) { gdb_assert (gdbarch->data == NULL); gdbarch->nr_data = gdbarch_data_registry.nr; gdbarch->data = xcalloc (gdbarch->nr_data, sizeof (void*)); } static void free_gdbarch_data (struct gdbarch *gdbarch) { struct gdbarch_data_registration *rego; gdb_assert (gdbarch->data != NULL); for (rego = gdbarch_data_registry.registrations; rego != NULL; rego = rego->next) { struct gdbarch_data *data = rego->data; gdb_assert (data->index < gdbarch->nr_data); if (data->free != NULL && gdbarch->data[data->index] != NULL) { data->free (gdbarch, gdbarch->data[data->index]); gdbarch->data[data->index] = NULL; } } xfree (gdbarch->data); gdbarch->data = NULL; } /* Initialize the current value of thee specified per-architecture data-pointer. */ void set_gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data, void *pointer) { gdb_assert (data->index < gdbarch->nr_data); if (data->free != NULL && gdbarch->data[data->index] != NULL) data->free (gdbarch, gdbarch->data[data->index]); gdbarch->data[data->index] = pointer; } /* Return the current value of the specified per-architecture data-pointer. */ void * gdbarch_data (struct gdbarch_data *data) { gdb_assert (data->index < current_gdbarch->nr_data); return current_gdbarch->data[data->index]; } /* Keep a registry of swapped data required by GDB modules. */ struct gdbarch_swap { void *swap; struct gdbarch_swap_registration *source; struct gdbarch_swap *next; }; struct gdbarch_swap_registration { void *data; unsigned long sizeof_data; gdbarch_swap_ftype *init; struct gdbarch_swap_registration *next; }; struct gdbarch_swap_registry { int nr; struct gdbarch_swap_registration *registrations; }; struct gdbarch_swap_registry gdbarch_swap_registry = { 0, NULL, }; void register_gdbarch_swap (void *data, unsigned long sizeof_data, gdbarch_swap_ftype *init) { struct gdbarch_swap_registration **rego; for (rego = &gdbarch_swap_registry.registrations; (*rego) != NULL; rego = &(*rego)->next); (*rego) = XMALLOC (struct gdbarch_swap_registration); (*rego)->next = NULL; (*rego)->init = init; (*rego)->data = data; (*rego)->sizeof_data = sizeof_data; } static void init_gdbarch_swap (struct gdbarch *gdbarch) { struct gdbarch_swap_registration *rego; struct gdbarch_swap **curr = &gdbarch->swap; for (rego = gdbarch_swap_registry.registrations; rego != NULL; rego = rego->next) { if (rego->data != NULL) { (*curr) = XMALLOC (struct gdbarch_swap); (*curr)->source = rego; (*curr)->swap = xmalloc (rego->sizeof_data); (*curr)->next = NULL; memset (rego->data, 0, rego->sizeof_data); curr = &(*curr)->next; } if (rego->init != NULL) rego->init (); } } static void swapout_gdbarch_swap (struct gdbarch *gdbarch) { struct gdbarch_swap *curr; for (curr = gdbarch->swap; curr != NULL; curr = curr->next) memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); } static void swapin_gdbarch_swap (struct gdbarch *gdbarch) { struct gdbarch_swap *curr; for (curr = gdbarch->swap; curr != NULL; curr = curr->next) memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); } /* Keep a registry of the architectures known by GDB. */ struct gdbarch_registration { enum bfd_architecture bfd_architecture; gdbarch_init_ftype *init; gdbarch_dump_tdep_ftype *dump_tdep; struct gdbarch_list *arches; struct gdbarch_registration *next; }; static struct gdbarch_registration *gdbarch_registry = NULL; static void append_name (const char ***buf, int *nr, const char *name) { *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1)); (*buf)[*nr] = name; *nr += 1; } const char ** gdbarch_printable_names (void) { if (GDB_MULTI_ARCH) { /* Accumulate a list of names based on the registed list of architectures. */ enum bfd_architecture a; int nr_arches = 0; const char **arches = NULL; struct gdbarch_registration *rego; for (rego = gdbarch_registry; rego != NULL; rego = rego->next) { const struct bfd_arch_info *ap; ap = bfd_lookup_arch (rego->bfd_architecture, 0); if (ap == NULL) internal_error (__FILE__, __LINE__, "gdbarch_architecture_names: multi-arch unknown"); do { append_name (&arches, &nr_arches, ap->printable_name); ap = ap->next; } while (ap != NULL); } append_name (&arches, &nr_arches, NULL); return arches; } else /* Just return all the architectures that BFD knows. Assume that the legacy architecture framework supports them. */ return bfd_arch_list (); } void gdbarch_register (enum bfd_architecture bfd_architecture, gdbarch_init_ftype *init, gdbarch_dump_tdep_ftype *dump_tdep) { struct gdbarch_registration **curr; const struct bfd_arch_info *bfd_arch_info; /* Check that BFD recognizes this architecture */ bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); if (bfd_arch_info == NULL) { internal_error (__FILE__, __LINE__, "gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); } /* Check that we haven't seen this architecture before */ for (curr = &gdbarch_registry; (*curr) != NULL; curr = &(*curr)->next) { if (bfd_architecture == (*curr)->bfd_architecture) internal_error (__FILE__, __LINE__, "gdbarch: Duplicate registraration of architecture (%s)", bfd_arch_info->printable_name); } /* log it */ if (gdbarch_debug) fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", bfd_arch_info->printable_name, (long) init); /* Append it */ (*curr) = XMALLOC (struct gdbarch_registration); (*curr)->bfd_architecture = bfd_architecture; (*curr)->init = init; (*curr)->dump_tdep = dump_tdep; (*curr)->arches = NULL; (*curr)->next = NULL; /* When non- multi-arch, install whatever target dump routine we've been provided - hopefully that routine has been written correctly and works regardless of multi-arch. */ if (!GDB_MULTI_ARCH && dump_tdep != NULL && startup_gdbarch.dump_tdep == NULL) startup_gdbarch.dump_tdep = dump_tdep; } void register_gdbarch_init (enum bfd_architecture bfd_architecture, gdbarch_init_ftype *init) { gdbarch_register (bfd_architecture, init, NULL); } /* Look for an architecture using gdbarch_info. Base search on only BFD_ARCH_INFO and BYTE_ORDER. */ struct gdbarch_list * gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info) { for (; arches != NULL; arches = arches->next) { if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) continue; if (info->byte_order != arches->gdbarch->byte_order) continue; return arches; } return NULL; } /* Update the current architecture. Return ZERO if the update request failed. */ int gdbarch_update_p (struct gdbarch_info info) { struct gdbarch *new_gdbarch; struct gdbarch_list **list; struct gdbarch_registration *rego; /* Fill in missing parts of the INFO struct using a number of sources: \`\`set ...''; INFOabfd supplied; existing target. */ /* \`\`(gdb) set architecture ...'' */ if (info.bfd_arch_info == NULL && !TARGET_ARCHITECTURE_AUTO) info.bfd_arch_info = TARGET_ARCHITECTURE; if (info.bfd_arch_info == NULL && info.abfd != NULL && bfd_get_arch (info.abfd) != bfd_arch_unknown && bfd_get_arch (info.abfd) != bfd_arch_obscure) info.bfd_arch_info = bfd_get_arch_info (info.abfd); if (info.bfd_arch_info == NULL) info.bfd_arch_info = TARGET_ARCHITECTURE; /* \`\`(gdb) set byte-order ...'' */ if (info.byte_order == BFD_ENDIAN_UNKNOWN && !TARGET_BYTE_ORDER_AUTO) info.byte_order = TARGET_BYTE_ORDER; /* From the INFO struct. */ if (info.byte_order == BFD_ENDIAN_UNKNOWN && info.abfd != NULL) info.byte_order = (bfd_big_endian (info.abfd) ? BFD_ENDIAN_BIG : bfd_little_endian (info.abfd) ? BFD_ENDIAN_LITTLE : BFD_ENDIAN_UNKNOWN); /* From the current target. */ if (info.byte_order == BFD_ENDIAN_UNKNOWN) info.byte_order = TARGET_BYTE_ORDER; /* Must have found some sort of architecture. */ gdb_assert (info.bfd_arch_info != NULL); if (gdbarch_debug) { fprintf_unfiltered (gdb_stdlog, "gdbarch_update: info.bfd_arch_info %s\n", (info.bfd_arch_info != NULL ? info.bfd_arch_info->printable_name : "(null)")); fprintf_unfiltered (gdb_stdlog, "gdbarch_update: info.byte_order %d (%s)\n", info.byte_order, (info.byte_order == BFD_ENDIAN_BIG ? "big" : info.byte_order == BFD_ENDIAN_LITTLE ? "little" : "default")); fprintf_unfiltered (gdb_stdlog, "gdbarch_update: info.abfd 0x%lx\n", (long) info.abfd); fprintf_unfiltered (gdb_stdlog, "gdbarch_update: info.tdep_info 0x%lx\n", (long) info.tdep_info); } /* Find the target that knows about this architecture. */ for (rego = gdbarch_registry; rego != NULL; rego = rego->next) if (rego->bfd_architecture == info.bfd_arch_info->arch) break; if (rego == NULL) { if (gdbarch_debug) fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\\n"); return 0; } /* Ask the target for a replacement architecture. */ new_gdbarch = rego->init (info, rego->arches); /* Did the target like it? No. Reject the change. */ if (new_gdbarch == NULL) { if (gdbarch_debug) fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Target rejected architecture\\n"); return 0; } /* Did the architecture change? No. Do nothing. */ if (current_gdbarch == new_gdbarch) { if (gdbarch_debug) fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Architecture 0x%08lx (%s) unchanged\\n", (long) new_gdbarch, new_gdbarch->bfd_arch_info->printable_name); return 1; } /* Swap all data belonging to the old target out */ swapout_gdbarch_swap (current_gdbarch); /* Is this a pre-existing architecture? Yes. Swap it in. */ for (list = ®o->arches; (*list) != NULL; list = &(*list)->next) { if ((*list)->gdbarch == new_gdbarch) { if (gdbarch_debug) fprintf_unfiltered (gdb_stdlog, "gdbarch_update: Previous architecture 0x%08lx (%s) selected\\n", (long) new_gdbarch, new_gdbarch->bfd_arch_info->printable_name); current_gdbarch = new_gdbarch; swapin_gdbarch_swap (new_gdbarch); architecture_changed_event (); return 1; } } /* Append this new architecture to this targets list. */ (*list) = XMALLOC (struct gdbarch_list); (*list)->next = NULL; (*list)->gdbarch = new_gdbarch; /* Switch to this new architecture. Dump it out. */ current_gdbarch = new_gdbarch; if (gdbarch_debug) { fprintf_unfiltered (gdb_stdlog, "gdbarch_update: New architecture 0x%08lx (%s) selected\\n", (long) new_gdbarch, new_gdbarch->bfd_arch_info->printable_name); } /* Check that the newly installed architecture is valid. Plug in any post init values. */ new_gdbarch->dump_tdep = rego->dump_tdep; verify_gdbarch (new_gdbarch); /* Initialize the per-architecture memory (swap) areas. CURRENT_GDBARCH must be update before these modules are called. */ init_gdbarch_swap (new_gdbarch); /* Initialize the per-architecture data-pointer of all parties that registered an interest in this architecture. CURRENT_GDBARCH must be updated before these modules are called. */ init_gdbarch_data (new_gdbarch); architecture_changed_event (); if (gdbarch_debug) gdbarch_dump (current_gdbarch, gdb_stdlog); return 1; } /* Disassembler */ /* Pointer to the target-dependent disassembly function. */ int (*tm_print_insn) (bfd_vma, disassemble_info *); disassemble_info tm_print_insn_info; extern void _initialize_gdbarch (void); void _initialize_gdbarch (void) { struct cmd_list_element *c; INIT_DISASSEMBLE_INFO_NO_ARCH (tm_print_insn_info, gdb_stdout, (fprintf_ftype)fprintf_filtered); tm_print_insn_info.flavour = bfd_target_unknown_flavour; tm_print_insn_info.read_memory_func = dis_asm_read_memory; tm_print_insn_info.memory_error_func = dis_asm_memory_error; tm_print_insn_info.print_address_func = dis_asm_print_address; add_show_from_set (add_set_cmd ("arch", class_maintenance, var_zinteger, (char *)&gdbarch_debug, "Set architecture debugging.\\n\\ When non-zero, architecture debugging is enabled.", &setdebuglist), &showdebuglist); c = add_set_cmd ("archdebug", class_maintenance, var_zinteger, (char *)&gdbarch_debug, "Set architecture debugging.\\n\\ When non-zero, architecture debugging is enabled.", &setlist); deprecate_cmd (c, "set debug arch"); deprecate_cmd (add_show_from_set (c, &showlist), "show debug arch"); } EOF # close things off exec 1>&2 #../move-if-change new-gdbarch.c gdbarch.c compare_new gdbarch.c