| #!/bin/sh -u |
| |
| # Architecture commands for GDB, the GNU debugger. |
| # |
| # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, |
| # Boston, MA 02110-1301, USA. |
| |
| # Make certain that the script is running in an internationalized |
| # environment. |
| LANG=c ; export LANG |
| LC_ALL=c ; export LC_ALL |
| |
| |
| compare_new () |
| { |
| file=$1 |
| if test ! -r ${file} |
| then |
| echo "${file} missing? cp new-${file} ${file}" 1>&2 |
| elif diff -u ${file} new-${file} |
| then |
| echo "${file} unchanged" 1>&2 |
| else |
| echo "${file} has changed? cp new-${file} ${file}" 1>&2 |
| fi |
| } |
| |
| |
| # Format of the input table |
| read="class macro returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol" |
| |
| do_read () |
| { |
| comment="" |
| class="" |
| while read line |
| do |
| if test "${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} <<EOF |
| ${line} |
| EOF |
| IFS="${OFS}" |
| |
| if test -n "${garbage_at_eol}" |
| then |
| echo "Garbage at end-of-line in ${line}" 1>&2 |
| kill $$ |
| exit 1 |
| fi |
| |
| # .... and then going back through each field and strip out those |
| # that ended up with just that space character. |
| for r in ${read} |
| do |
| if eval test \"\${${r}}\" = \"\ \" |
| then |
| eval ${r}="" |
| fi |
| done |
| |
| FUNCTION=`echo ${function} | tr '[a-z]' '[A-Z]'` |
| if test "x${macro}" = "x=" |
| then |
| # Provide a UCASE version of function (for when there isn't MACRO) |
| macro="${FUNCTION}" |
| elif test "${macro}" = "${FUNCTION}" |
| then |
| echo "${function}: Specify = for macro field" 1>&2 |
| kill $$ |
| exit 1 |
| fi |
| |
| # Check that macro definition wasn't supplied for multi-arch |
| case "${class}" in |
| [mM] ) |
| if test "${macro}" != "" |
| then |
| echo "Error: Function ${function} multi-arch yet macro ${macro} supplied" 1>&2 |
| kill $$ |
| exit 1 |
| fi |
| esac |
| |
| case "${class}" in |
| m ) staticdefault="${predefault}" ;; |
| M ) staticdefault="0" ;; |
| * ) test "${staticdefault}" || staticdefault=0 ;; |
| esac |
| |
| case "${class}" in |
| F | V | M ) |
| case "${invalid_p}" in |
| "" ) |
| if test -n "${predefault}" |
| then |
| #invalid_p="gdbarch->${function} == ${predefault}" |
| predicate="gdbarch->${function} != ${predefault}" |
| elif class_is_variable_p |
| then |
| predicate="gdbarch->${function} != 0" |
| elif class_is_function_p |
| then |
| predicate="gdbarch->${function} != NULL" |
| fi |
| ;; |
| * ) |
| echo "Predicate function ${function} with invalid_p." 1>&2 |
| kill $$ |
| exit 1 |
| ;; |
| esac |
| esac |
| |
| # PREDEFAULT is a valid fallback definition of MEMBER when |
| # multi-arch is not enabled. This ensures that the |
| # default value, when multi-arch is the same as the |
| # default value when not multi-arch. POSTDEFAULT is |
| # always a valid definition of MEMBER as this again |
| # ensures consistency. |
| |
| if [ -n "${postdefault}" ] |
| then |
| fallbackdefault="${postdefault}" |
| elif [ -n "${predefault}" ] |
| then |
| fallbackdefault="${predefault}" |
| else |
| fallbackdefault="0" |
| fi |
| |
| #NOT YET: See gdbarch.log for basic verification of |
| # database |
| |
| break |
| fi |
| done |
| if [ -n "${class}" ] |
| then |
| true |
| else |
| false |
| fi |
| } |
| |
| |
| fallback_default_p () |
| { |
| [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \ |
| || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ] |
| } |
| |
| class_is_variable_p () |
| { |
| case "${class}" in |
| *v* | *V* ) true ;; |
| * ) false ;; |
| esac |
| } |
| |
| class_is_function_p () |
| { |
| case "${class}" in |
| *f* | *F* | *m* | *M* ) true ;; |
| * ) false ;; |
| esac |
| } |
| |
| class_is_multiarch_p () |
| { |
| case "${class}" in |
| *m* | *M* ) true ;; |
| * ) false ;; |
| esac |
| } |
| |
| class_is_predicate_p () |
| { |
| case "${class}" in |
| *F* | *V* | *M* ) true ;; |
| * ) false ;; |
| esac |
| } |
| |
| class_is_info_p () |
| { |
| case "${class}" in |
| *i* ) true ;; |
| * ) false ;; |
| esac |
| } |
| |
| |
| # dump out/verify the doco |
| for field in ${read} |
| do |
| case ${field} in |
| |
| class ) : ;; |
| |
| # # -> 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 |
| |
| macro ) : ;; |
| |
| # The name of the legacy C macro by which this method can be |
| # accessed. If empty, no macro is defined. If "=", a macro |
| # formed from the upper-case function name is used. |
| |
| 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. |
| |
| 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 ``current_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. |
| |
| print ) : ;; |
| |
| # An optional expression that convers MEMBER to a value |
| # suitable for formatting using %s. |
| |
| # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d |
| # (anything else) is used. |
| |
| garbage_at_eol ) : ;; |
| |
| # Catches stray fields. |
| |
| *) |
| echo "Bad field ${field}" |
| exit 1;; |
| esac |
| done |
| |
| |
| function_list () |
| { |
| # See below (DOCO) for description of each field |
| cat <<EOF |
| i:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::TARGET_ARCHITECTURE->printable_name |
| # |
| i:TARGET_BYTE_ORDER:int:byte_order:::BFD_ENDIAN_BIG |
| # |
| i:TARGET_OSABI:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN |
| # Number of bits in a char or unsigned char for the target machine. |
| # Just like CHAR_BIT in <limits.h> 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 |
| |
| # The ABI default bit-size and format for "float", "double", and "long |
| # double". These bit/format pairs should eventually be combined into |
| # a single object. For the moment, just initialize them as a pair. |
| |
| v:TARGET_FLOAT_BIT:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0 |
| v:TARGET_FLOAT_FORMAT:const struct floatformat *:float_format:::::default_float_format (current_gdbarch)::pformat (current_gdbarch->float_format) |
| v:TARGET_DOUBLE_BIT:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0 |
| v:TARGET_DOUBLE_FORMAT:const struct floatformat *:double_format:::::default_double_format (current_gdbarch)::pformat (current_gdbarch->double_format) |
| v:TARGET_LONG_DOUBLE_BIT:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0 |
| v:TARGET_LONG_DOUBLE_FORMAT:const struct floatformat *:long_double_format:::::default_double_format (current_gdbarch)::pformat (current_gdbarch->long_double_format) |
| |
| # 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 |
| f:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, ptid_t ptid:val, ptid:0:generic_target_write_pc::0 |
| # UNWIND_SP is a direct replacement for TARGET_READ_SP. |
| F:TARGET_READ_SP:CORE_ADDR:read_sp:void |
| # 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:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf |
| M::void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf |
| # |
| v:=: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:=:int:num_pseudo_regs:::0:0::0 |
| |
| # GDB's standard (or well known) register numbers. These can map onto |
| # a real register or a pseudo (computed) register or not be defined at |
| # all (-1). |
| # SP_REGNUM will hopefully be replaced by UNWIND_SP. |
| v:=:int:sp_regnum:::-1:-1::0 |
| v:=:int:pc_regnum:::-1:-1::0 |
| v:=:int:ps_regnum:::-1:-1::0 |
| v:=:int:fp0_regnum:::0:-1::0 |
| # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. |
| f:=: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:=: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:=: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. |
| f:=:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0 |
| f:=:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0 |
| f:=:const char *:register_name:int regnr:regnr |
| |
| # REGISTER_TYPE is a direct replacement for DEPRECATED_REGISTER_VIRTUAL_TYPE. |
| M::struct type *:register_type:int reg_nr:reg_nr |
| # If the value returned by DEPRECATED_REGISTER_BYTE agrees with the |
| # register offsets computed using just REGISTER_TYPE, this can be |
| # deleted. See: maint print registers. NOTE: cagney/2002-05-02: This |
| # function with predicate has a valid (callable) initial value. As a |
| # consequence, even when the predicate is false, the corresponding |
| # function works. This simplifies the migration process - old code, |
| # calling DEPRECATED_REGISTER_BYTE, doesn't need to be modified. |
| F:=:int:deprecated_register_byte:int reg_nr:reg_nr:generic_register_byte:generic_register_byte |
| |
| # See gdbint.texinfo, and PUSH_DUMMY_CALL. |
| M::struct frame_id:unwind_dummy_id:struct frame_info *info:info |
| # Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete |
| # DEPRECATED_FP_REGNUM. |
| v:=:int:deprecated_fp_regnum:::-1:-1::0 |
| |
| # See gdbint.texinfo. See infcall.c. |
| M::CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr |
| # DEPRECATED_REGISTER_SIZE can be deleted. |
| v:=:int:deprecated_register_size |
| v:=:int:call_dummy_location::::AT_ENTRY_POINT::0 |
| M::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 |
| |
| m::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 |
| M::void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args |
| M::void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args |
| # MAP a GDB RAW register number onto a simulator register number. See |
| # also include/...-sim.h. |
| f:=:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0 |
| F:=:int:register_bytes_ok:long nr_bytes:nr_bytes |
| f:=:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0 |
| f:=:int:cannot_store_register:int regnum:regnum::cannot_register_not::0 |
| # setjmp/longjmp support. |
| F:=:int:get_longjmp_target:CORE_ADDR *pc:pc |
| # |
| v:=:int:believe_pcc_promotion::::::: |
| # |
| f:=:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0 |
| f:=:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0 |
| f:=:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0 |
| # |
| f:=:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0 |
| f:=:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0 |
| M::CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf |
| # |
| # NOTE: kettenis/2005-09-01: Replaced by PUSH_DUMMY_CALL. |
| F:=:void:deprecated_store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp |
| |
| # It has been suggested that this, well actually its predecessor, |
| # should take the type/value of the function to be called and not the |
| # return type. This is left as an exercise for the reader. |
| |
| # NOTE: cagney/2004-06-13: The function stack.c:return_command uses |
| # the predicate with default hack to avoid calling STORE_RETURN_VALUE |
| # (via legacy_return_value), when a small struct is involved. |
| |
| M::enum return_value_convention:return_value:struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:valtype, regcache, readbuf, writebuf::legacy_return_value |
| |
| # The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE, |
| # DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and |
| # DEPRECATED_USE_STRUCT_CONVENTION have all been folded into |
| # RETURN_VALUE. |
| |
| f:=:void:extract_return_value:struct type *type, struct regcache *regcache, gdb_byte *valbuf:type, regcache, valbuf::legacy_extract_return_value::0 |
| f:=:void:store_return_value:struct type *type, struct regcache *regcache, const gdb_byte *valbuf:type, regcache, valbuf::legacy_store_return_value::0 |
| f:=:void:deprecated_extract_return_value:struct type *type, gdb_byte *regbuf, gdb_byte *valbuf:type, regbuf, valbuf |
| f:=:void:deprecated_store_return_value:struct type *type, gdb_byte *valbuf:type, valbuf |
| f:=:int:deprecated_use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::generic_use_struct_convention::0 |
| |
| # As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an |
| # ABI suitable for the implementation of a robust extract |
| # struct-convention return-value address method (the sparc saves the |
| # address in the callers frame). All the other cases so far examined, |
| # the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been |
| # erreneous - the code was incorrectly assuming that the return-value |
| # address, stored in a register, was preserved across the entire |
| # function call. |
| |
| # For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of |
| # the ABIs that are still to be analyzed - perhaps this should simply |
| # be deleted. The commented out extract_returned_value_address method |
| # is provided as a starting point for the 32-bit SPARC. It, or |
| # something like it, along with changes to both infcmd.c and stack.c |
| # will be needed for that case to work. NB: It is passed the callers |
| # frame since it is only after the callee has returned that this |
| # function is used. |
| |
| #M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame |
| F:=:CORE_ADDR:deprecated_extract_struct_value_address:struct regcache *regcache:regcache |
| |
| # |
| f:=:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0 |
| f:=:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0 |
| f:=:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0: |
| M::CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr |
| f:=:int:memory_insert_breakpoint:CORE_ADDR addr, struct bp_location *bpt:addr, bpt:0:default_memory_insert_breakpoint::0 |
| f:=:int:memory_remove_breakpoint:CORE_ADDR addr, struct bp_location *bpt:addr, bpt:0:default_memory_remove_breakpoint::0 |
| v:=:CORE_ADDR:decr_pc_after_break:::0:::0 |
| |
| # A function can be addressed by either it's "pointer" (possibly a |
| # descriptor address) or "entry point" (first executable instruction). |
| # The method "convert_from_func_ptr_addr" converting the former to the |
| # latter. DEPRECATED_FUNCTION_START_OFFSET is being used to implement |
| # a simplified subset of that functionality - the function's address |
| # corresponds to the "function pointer" and the function's start |
| # corresponds to the "function entry point" - and hence is redundant. |
| |
| v:=:CORE_ADDR:deprecated_function_start_offset:::0:::0 |
| |
| m::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 |
| |
| # Fetch the target specific address used to represent a load module. |
| F:=:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile |
| # |
| v:=:CORE_ADDR:frame_args_skip:::0:::0 |
| M::CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame |
| M::CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame |
| # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame |
| # frame-base. Enable frame-base before frame-unwind. |
| F:=:CORE_ADDR:deprecated_saved_pc_after_call:struct frame_info *frame:frame |
| F:=:int:frame_num_args:struct frame_info *frame:frame |
| # |
| # DEPRECATED_STACK_ALIGN has been replaced by an initial aligning call |
| # to frame_align and the requirement that methods such as |
| # push_dummy_call and frame_red_zone_size maintain correct stack/frame |
| # alignment. |
| F:=:CORE_ADDR:deprecated_stack_align:CORE_ADDR sp:sp |
| M::CORE_ADDR:frame_align:CORE_ADDR address:address |
| # DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by |
| # stabs_argument_has_addr. |
| F:=:int:deprecated_reg_struct_has_addr:int gcc_p, struct type *type:gcc_p, type |
| m::int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0 |
| v:=:int:frame_red_zone_size |
| # |
| m::CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_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:=:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0 |
| # It is not at all clear why SMASH_TEXT_ADDRESS is not folded into |
| # ADDR_BITS_REMOVE. |
| f:=:CORE_ADDR:smash_text_address: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:=:void:software_single_step:enum target_signal sig, int insert_breakpoints_p:sig, insert_breakpoints_p |
| # Return non-zero if the processor is executing a delay slot and a |
| # further single-step is needed before the instruction finishes. |
| M::int:single_step_through_delay:struct frame_info *frame:frame |
| # FIXME: cagney/2003-08-28: Need to find a better way of selecting the |
| # disassembler. Perhaps objdump can handle it? |
| f:TARGET_PRINT_INSN:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0: |
| f:=:CORE_ADDR:skip_trampoline_code:CORE_ADDR pc:pc::generic_skip_trampoline_code::0 |
| |
| |
| # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER |
| # evaluates non-zero, this is the address where the debugger will place |
| # a step-resume breakpoint to get us past the dynamic linker. |
| m::CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0 |
| # Some systems also have trampoline code for returning from shared libs. |
| f:=:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_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::char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0 |
| f:=:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0 |
| f:=:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0 |
| v:=:const char *:name_of_malloc:::"malloc":"malloc"::0:NAME_OF_MALLOC |
| v:=:int:cannot_step_breakpoint:::0:0::0 |
| v:=:int:have_nonsteppable_watchpoint:::0:0::0 |
| F:=:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class |
| M::const char *:address_class_type_flags_to_name:int type_flags:type_flags |
| M::int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr |
| # Is a register in a group |
| m::int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0 |
| # Fetch the pointer to the ith function argument. |
| F:=:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type |
| |
| # Return the appropriate register set for a core file section with |
| # name SECT_NAME and size SECT_SIZE. |
| M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size |
| |
| # Non-zero if the architecture supports target feature sets. |
| v::int:available_features_support |
| |
| # The architecture's currently associated feature set. |
| v::struct gdb_feature_set *:feature_set:::::::paddr_nz ((long) current_gdbarch->feature_set) |
| EOF |
| } |
| |
| # |
| # The .log file |
| # |
| exec > new-gdbarch.log |
| function_list | while do_read |
| do |
| cat <<EOF |
| ${class} ${returntype} ${function} ($formal) |
| EOF |
| for r in ${read} |
| do |
| eval echo \"\ \ \ \ ${r}=\${${r}}\" |
| done |
| if class_is_predicate_p && fallback_default_p |
| then |
| echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&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 ${function} must have a predefault" 1>&2 |
| kill $$ |
| exit 1 |
| fi |
| fi |
| echo "" |
| done |
| |
| exec 1>&2 |
| compare_new gdbarch.log |
| |
| |
| copyright () |
| { |
| cat <<EOF |
| /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ |
| |
| /* Dynamic architecture support for GDB, the GNU debugger. |
| |
| Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 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., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. */ |
| |
| /* This file was created with the aid of \`\`gdbarch.sh''. |
| |
| The Bourne shell script \`\`gdbarch.sh'' creates the files |
| \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them |
| against the existing \`\`gdbarch.[hc]''. Any differences found |
| being reported. |
| |
| If editing this file, please also run gdbarch.sh and merge any |
| changes into that script. Conversely, when making sweeping changes |
| to this file, modifying gdbarch.sh and using its output may prove |
| easier. */ |
| |
| EOF |
| } |
| |
| # |
| # The .h file |
| # |
| |
| exec > new-gdbarch.h |
| copyright |
| cat <<EOF |
| #ifndef GDBARCH_H |
| #define GDBARCH_H |
| |
| struct floatformat; |
| struct ui_file; |
| struct frame_info; |
| struct value; |
| struct objfile; |
| struct minimal_symbol; |
| struct regcache; |
| struct reggroup; |
| struct regset; |
| struct disassemble_info; |
| struct target_ops; |
| struct obstack; |
| struct bp_location; |
| struct gdb_feature_set; |
| |
| extern struct gdbarch *current_gdbarch; |
| 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_${function}() - not applicable - pre-initialized. */\n" |
| if test -n "${macro}" |
| then |
| printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| printf "#endif\n" |
| printf "#if !defined (${macro})\n" |
| printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" |
| printf "#endif\n" |
| fi |
| 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,$, */,' |
| fi |
| |
| if class_is_predicate_p |
| then |
| if test -n "${macro}" |
| then |
| printf "\n" |
| printf "#if defined (${macro})\n" |
| printf "/* Legacy for systems yet to multi-arch ${macro} */\n" |
| printf "#if !defined (${macro}_P)\n" |
| printf "#define ${macro}_P() (1)\n" |
| printf "#endif\n" |
| printf "#endif\n" |
| fi |
| printf "\n" |
| printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" |
| if test -n "${macro}" |
| then |
| printf "#if !defined (GDB_TM_FILE) && defined (${macro}_P)\n" |
| printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| printf "#endif\n" |
| printf "#if !defined (${macro}_P)\n" |
| printf "#define ${macro}_P() (gdbarch_${function}_p (current_gdbarch))\n" |
| printf "#endif\n" |
| fi |
| fi |
| if class_is_variable_p |
| then |
| printf "\n" |
| printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" |
| printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" |
| if test -n "${macro}" |
| then |
| printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| printf "#endif\n" |
| printf "#if !defined (${macro})\n" |
| printf "#define ${macro} (gdbarch_${function} (current_gdbarch))\n" |
| printf "#endif\n" |
| fi |
| fi |
| if class_is_function_p |
| then |
| 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 test -n "${macro}" |
| then |
| printf "#if !defined (GDB_TM_FILE) && defined (${macro})\n" |
| printf "#error \"Non multi-arch definition of ${macro}\"\n" |
| printf "#endif\n" |
| if [ "x${actual}" = "x" ] |
| then |
| d="#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| elif [ "x${actual}" = "x-" ] |
| then |
| d="#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| else |
| d="#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| fi |
| printf "#if !defined (${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" |
| fi |
| fi |
| done |
| |
| # close it off |
| cat <<EOF |
| |
| extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); |
| |
| extern struct obstack *gdbarch_obstack (struct gdbarch *gdbarch); |
| |
| /* Mechanism for co-ordinating the selection of a specific |
| architecture. |
| |
| GDB targets (*-tdep.c) can register an interest in a specific |
| architecture. Other GDB components can register a need to maintain |
| per-architecture data. |
| |
| The mechanisms below ensures that there is only a loose connection |
| between the set-architecture command and the various GDB |
| components. Each component can independently register their need |
| to maintain architecture specific data with gdbarch. |
| |
| Pragmatics: |
| |
| Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It |
| didn't scale. |
| |
| The more traditional mega-struct containing architecture specific |
| data for all the various GDB components was also considered. Since |
| GDB is built from a variable number of (fairly independent) |
| components it was determined that the global aproach was not |
| applicable. */ |
| |
| |
| /* Register a new architectural family with GDB. |
| |
| Register support for the specified ARCHITECTURE with GDB. When |
| gdbarch determines that the specified architecture has been |
| selected, the corresponding INIT function is called. |
| |
| -- |
| |
| The INIT function takes two parameters: INFO which contains the |
| information available to gdbarch about the (possibly new) |
| architecture; ARCHES which is a list of the previously created |
| \`\`struct gdbarch'' for this architecture. |
| |
| The INFO parameter is, as far as possible, be pre-initialized with |
| information obtained from INFO.ABFD or the previously selected |
| architecture. |
| |
| The ARCHES parameter is a linked list (sorted most recently used) |
| of all the previously created architures for this architecture |
| family. The (possibly NULL) ARCHES->gdbarch can used to access |
| values from the previously selected architecture for this |
| architecture family. The global \`\`current_gdbarch'' shall not be |
| used. |
| |
| The INIT function shall return any of: NULL - indicating that it |
| doesn't recognize the selected architecture; an existing \`\`struct |
| gdbarch'' from the ARCHES list - indicating that the new |
| architecture is just a synonym for an earlier architecture (see |
| gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' |
| - that describes the selected architecture (see gdbarch_alloc()). |
| |
| The DUMP_TDEP function shall print out all target specific values. |
| Care should be taken to ensure that the function works in both the |
| multi-arch and non- multi-arch cases. */ |
| |
| struct gdbarch_list |
| { |
| struct gdbarch *gdbarch; |
| struct gdbarch_list *next; |
| }; |
| |
| struct gdbarch_info |
| { |
| /* Use default: NULL (ZERO). */ |
| const struct bfd_arch_info *bfd_arch_info; |
| |
| /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ |
| int byte_order; |
| |
| /* Use default: NULL (ZERO). */ |
| bfd *abfd; |
| |
| /* Use default: NULL (ZERO). */ |
| struct gdbarch_tdep_info *tdep_info; |
| |
| /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ |
| enum gdb_osabi osabi; |
| |
| /* Use default: NULL. */ |
| struct gdb_feature_set *feature_set; |
| }; |
| |
| typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); |
| typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); |
| |
| /* DEPRECATED - use gdbarch_register() */ |
| extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| |
| extern void gdbarch_register (enum bfd_architecture architecture, |
| gdbarch_init_ftype *, |
| gdbarch_dump_tdep_ftype *); |
| |
| |
| /* Return a freshly allocated, NULL terminated, array of the valid |
| architecture names. Since architectures are registered during the |
| _initialize phase this function only returns useful information |
| once initialization has been completed. */ |
| |
| extern const char **gdbarch_printable_names (void); |
| |
| |
| /* Helper function. Search the list of ARCHES for a GDBARCH that |
| matches the information provided by INFO. */ |
| |
| extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); |
| |
| |
| /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform |
| basic initialization using values obtained from the INFO and TDEP |
| parameters. set_gdbarch_*() functions are called to complete the |
| initialization of the object. */ |
| |
| extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); |
| |
| |
| /* Helper function. Free a partially-constructed \`\`struct gdbarch''. |
| It is assumed that the caller freeds the \`\`struct |
| gdbarch_tdep''. */ |
| |
| extern void gdbarch_free (struct gdbarch *); |
| |
| |
| /* Helper function. Allocate memory from the \`\`struct gdbarch'' |
| obstack. The memory is freed when the corresponding architecture |
| is also freed. */ |
| |
| extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); |
| #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) |
| #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) |
| |
| |
| /* Helper function. Force an update of the current architecture. |
| |
| The actual architecture selected is determined by INFO, \`\`(gdb) set |
| architecture'' et.al., the existing architecture and BFD's default |
| architecture. INFO should be initialized to zero and then selected |
| fields should be updated. |
| |
| Returns non-zero if the update succeeds */ |
| |
| extern int gdbarch_update_p (struct gdbarch_info info); |
| |
| |
| /* Helper function. Find an architecture matching info. |
| |
| INFO should be initialized using gdbarch_info_init, relevant fields |
| set, and then finished using gdbarch_info_fill. |
| |
| Returns the corresponding architecture, or NULL if no matching |
| architecture was found. "current_gdbarch" is not updated. */ |
| |
| extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); |
| |
| |
| /* Helper function. Set the global "current_gdbarch" to "gdbarch". |
| |
| FIXME: kettenis/20031124: Of the functions that follow, only |
| gdbarch_from_bfd is supposed to survive. The others will |
| dissappear since in the future GDB will (hopefully) be truly |
| multi-arch. However, for now we're still stuck with the concept of |
| a single active architecture. */ |
| |
| extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch); |
| |
| |
| /* Register per-architecture data-pointer. |
| |
| Reserve space for a per-architecture data-pointer. An identifier |
| for the reserved data-pointer is returned. That identifer should |
| be saved in a local static variable. |
| |
| Memory for the per-architecture data shall be allocated using |
| gdbarch_obstack_zalloc. That memory will be deleted when the |
| corresponding architecture object is deleted. |
| |
| When a previously created architecture is re-selected, the |
| per-architecture data-pointer for that previous architecture is |
| restored. INIT() is not re-called. |
| |
| Multiple registrarants for any architecture are allowed (and |
| strongly encouraged). */ |
| |
| struct gdbarch_data; |
| |
| typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); |
| extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); |
| typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); |
| extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); |
| extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| struct gdbarch_data *data, |
| void *pointer); |
| |
| extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); |
| |
| |
| |
| /* Register per-architecture memory region. |
| |
| Provide a memory-region swap mechanism. Per-architecture memory |
| region are created. These memory regions are swapped whenever the |
| architecture is changed. For a new architecture, the memory region |
| is initialized with zero (0) and the INIT function is called. |
| |
| Memory regions are swapped / initialized in the order that they are |
| registered. NULL DATA and/or INIT values can be specified. |
| |
| New code should use gdbarch_data_register_*(). */ |
| |
| typedef void (gdbarch_swap_ftype) (void); |
| extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); |
| #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) |
| |
| |
| |
| /* Set the dynamic target-system-dependent parameters (architecture, |
| byte-order, ...) using information found in the BFD */ |
| |
| extern void set_gdbarch_from_file (bfd *); |
| |
| |
| /* Initialize the current architecture to the "first" one we find on |
| our list. */ |
| |
| extern void initialize_current_architecture (void); |
| |
| /* gdbarch trace variable */ |
| extern int gdbarch_debug; |
| |
| extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); |
| |
| #endif |
| EOF |
| exec 1>&2 |
| #../move-if-change new-gdbarch.h gdbarch.h |
| compare_new gdbarch.h |
| |
| |
| # |
| # C file |
| # |
| |
| exec > new-gdbarch.c |
| copyright |
| cat <<EOF |
| |
| #include "defs.h" |
| #include "arch-utils.h" |
| |
| #include "gdbcmd.h" |
| #include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ |
| #include "symcat.h" |
| #include "available.h" |
| |
| #include "floatformat.h" |
| |
| #include "gdb_assert.h" |
| #include "gdb_string.h" |
| #include "gdb-events.h" |
| #include "reggroups.h" |
| #include "osabi.h" |
| #include "gdb_obstack.h" |
| |
| /* Static function declarations */ |
| |
| static void alloc_gdbarch_data (struct gdbarch *); |
| |
| /* Non-zero if we want to trace architecture code. */ |
| |
| #ifndef GDBARCH_DEBUG |
| #define GDBARCH_DEBUG 0 |
| #endif |
| int gdbarch_debug = GDBARCH_DEBUG; |
| static void |
| show_gdbarch_debug (struct ui_file *file, int from_tty, |
| struct cmd_list_element *c, const char *value) |
| { |
| fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value); |
| } |
| |
| static const char * |
| pformat (const struct floatformat *format) |
| { |
| if (format == NULL) |
| return "(null)"; |
| else |
| return format->name; |
| } |
| |
| EOF |
| |
| # gdbarch open the gdbarch object |
| printf "\n" |
| printf "/* Maintain the struct gdbarch object */\n" |
| printf "\n" |
| printf "struct gdbarch\n" |
| printf "{\n" |
| printf " /* Has this architecture been fully initialized? */\n" |
| printf " int initialized_p;\n" |
| printf "\n" |
| printf " /* An obstack bound to the lifetime of the architecture. */\n" |
| printf " struct obstack *obstack;\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 <<EOF |
| /* Multi-arch values. |
| |
| When extending this structure you must: |
| |
| Add the field below. |
| |
| Declare set/get functions and define the corresponding |
| macro in gdbarch.h. |
| |
| gdbarch_alloc(): If zero/NULL is not a suitable default, |
| initialize the new field. |
| |
| verify_gdbarch(): Confirm that the target updated the field |
| correctly. |
| |
| gdbarch_dump(): Add a fprintf_unfiltered call so that the new |
| field is dumped out |
| |
| \`\`startup_gdbarch()'': Append an initial value to the static |
| variable (base values on the host's c-type system). |
| |
| get_gdbarch(): Implement the set/get functions (probably using |
| the macro's as shortcuts). |
| |
| */ |
| |
| EOF |
| function_list | while do_read |
| do |
| if class_is_variable_p |
| then |
| printf " ${returntype} ${function};\n" |
| elif class_is_function_p |
| then |
| printf " gdbarch_${function}_ftype *${function};\n" |
| fi |
| done |
| printf "};\n" |
| |
| # A pre-initialized vector |
| printf "\n" |
| printf "\n" |
| cat <<EOF |
| /* The default architecture uses host values (for want of a better |
| choice). */ |
| EOF |
| printf "\n" |
| printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n" |
| printf "\n" |
| printf "struct gdbarch startup_gdbarch =\n" |
| printf "{\n" |
| printf " 1, /* Always initialized. */\n" |
| printf " NULL, /* The obstack. */\n" |
| printf " /* basic architecture information */\n" |
| function_list | while do_read |
| do |
| if class_is_info_p |
| then |
| printf " ${staticdefault}, /* ${function} */\n" |
| fi |
| done |
| cat <<EOF |
| /* target specific vector and its dump routine */ |
| NULL, NULL, |
| /*per-architecture data-pointers and swap regions */ |
| 0, NULL, NULL, |
| /* Multi-arch values */ |
| EOF |
| function_list | while do_read |
| do |
| if class_is_function_p || class_is_variable_p |
| then |
| printf " ${staticdefault}, /* ${function} */\n" |
| fi |
| done |
| cat <<EOF |
| /* startup_gdbarch() */ |
| }; |
| |
| struct gdbarch *current_gdbarch = &startup_gdbarch; |
| EOF |
| |
| # Create a new gdbarch struct |
| cat <<EOF |
| |
| /* Create a new \`\`struct gdbarch'' based on information provided by |
| \`\`struct gdbarch_info''. */ |
| EOF |
| printf "\n" |
| cat <<EOF |
| struct gdbarch * |
| gdbarch_alloc (const struct gdbarch_info *info, |
| struct gdbarch_tdep *tdep) |
| { |
| /* NOTE: The new architecture variable is named \`\`current_gdbarch'' |
| so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to |
| the current local architecture and not the previous global |
| architecture. This ensures that the new architectures initial |
| values are not influenced by the previous architecture. Once |
| everything is parameterised with gdbarch, this will go away. */ |
| struct gdbarch *current_gdbarch; |
| |
| /* Create an obstack for allocating all the per-architecture memory, |
| then use that to allocate the architecture vector. */ |
| struct obstack *obstack = XMALLOC (struct obstack); |
| obstack_init (obstack); |
| current_gdbarch = obstack_alloc (obstack, sizeof (*current_gdbarch)); |
| memset (current_gdbarch, 0, sizeof (*current_gdbarch)); |
| current_gdbarch->obstack = obstack; |
| |
| alloc_gdbarch_data (current_gdbarch); |
| |
| current_gdbarch->tdep = tdep; |
| EOF |
| printf "\n" |
| function_list | while do_read |
| do |
| if class_is_info_p |
| then |
| printf " current_gdbarch->${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 <<EOF |
| /* gdbarch_alloc() */ |
| |
| return current_gdbarch; |
| } |
| EOF |
| |
| # Free a gdbarch struct. |
| printf "\n" |
| printf "\n" |
| cat <<EOF |
| /* Allocate extra space using the per-architecture obstack. */ |
| |
| void * |
| gdbarch_obstack_zalloc (struct gdbarch *arch, long size) |
| { |
| void *data = obstack_alloc (arch->obstack, size); |
| memset (data, 0, size); |
| return data; |
| } |
| |
| |
| /* Free a gdbarch struct. This should never happen in normal |
| operation --- once you've created a gdbarch, you keep it around. |
| However, if an architecture's init function encounters an error |
| building the structure, it may need to clean up a partially |
| constructed gdbarch. */ |
| |
| void |
| gdbarch_free (struct gdbarch *arch) |
| { |
| struct obstack *obstack; |
| gdb_assert (arch != NULL); |
| gdb_assert (!arch->initialized_p); |
| obstack = arch->obstack; |
| obstack_free (obstack, 0); /* Includes the ARCH. */ |
| xfree (obstack); |
| } |
| EOF |
| |
| # verify a new architecture |
| cat <<EOF |
| |
| |
| /* Ensure that all values in a GDBARCH are reasonable. */ |
| |
| /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it |
| just happens to match the global variable \`\`current_gdbarch''. That |
| way macros refering to that variable get the local and not the global |
| version - ulgh. Once everything is parameterised with gdbarch, this |
| will go away. */ |
| |
| static void |
| verify_gdbarch (struct gdbarch *current_gdbarch) |
| { |
| struct ui_file *log; |
| struct cleanup *cleanups; |
| long dummy; |
| char *buf; |
| log = mem_fileopen (); |
| cleanups = make_cleanup_ui_file_delete (log); |
| /* fundamental */ |
| if (current_gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) |
| fprintf_unfiltered (log, "\n\tbyte-order"); |
| if (current_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 " current_gdbarch->${function} = ${postdefault};\n" |
| elif [ -n "${predefault}" -a -n "${postdefault}" ] |
| then |
| printf " if (current_gdbarch->${function} == ${predefault})\n" |
| printf " current_gdbarch->${function} = ${postdefault};\n" |
| elif [ -n "${postdefault}" ] |
| then |
| printf " if (current_gdbarch->${function} == 0)\n" |
| printf " current_gdbarch->${function} = ${postdefault};\n" |
| elif [ -n "${invalid_p}" ] |
| then |
| printf " if (${invalid_p})\n" |
| printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| elif [ -n "${predefault}" ] |
| then |
| printf " if (current_gdbarch->${function} == ${predefault})\n" |
| printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" |
| fi |
| fi |
| done |
| cat <<EOF |
| buf = ui_file_xstrdup (log, &dummy); |
| make_cleanup (xfree, buf); |
| if (strlen (buf) > 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 <<EOF |
| /* Print out the details of the current architecture. */ |
| |
| /* NOTE/WARNING: The parameter is called \`\`current_gdbarch'' so that it |
| just happens to match the global variable \`\`current_gdbarch''. That |
| way macros refering to that variable get the local and not the global |
| version - ulgh. Once everything is parameterised with gdbarch, this |
| will go away. */ |
| |
| void |
| gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file) |
| { |
| const char *gdb_xm_file = "<not-defined>"; |
| const char *gdb_nm_file = "<not-defined>"; |
| const char *gdb_tm_file = "<not-defined>"; |
| #if defined (GDB_XM_FILE) |
| gdb_xm_file = GDB_XM_FILE; |
| #endif |
| fprintf_unfiltered (file, |
| "gdbarch_dump: GDB_XM_FILE = %s\\n", |
| gdb_xm_file); |
| #if defined (GDB_NM_FILE) |
| gdb_nm_file = GDB_NM_FILE; |
| #endif |
| fprintf_unfiltered (file, |
| "gdbarch_dump: GDB_NM_FILE = %s\\n", |
| gdb_nm_file); |
| #if defined (GDB_TM_FILE) |
| gdb_tm_file = GDB_TM_FILE; |
| #endif |
| fprintf_unfiltered (file, |
| "gdbarch_dump: GDB_TM_FILE = %s\\n", |
| gdb_tm_file); |
| EOF |
| function_list | sort -t: -k 4 | while do_read |
| do |
| # First the predicate |
| if class_is_predicate_p |
| then |
| if test -n "${macro}" |
| then |
| printf "#ifdef ${macro}_P\n" |
| printf " fprintf_unfiltered (file,\n" |
| printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" |
| printf " \"${macro}_P()\",\n" |
| printf " XSTRING (${macro}_P ()));\n" |
| printf "#endif\n" |
| fi |
| printf " fprintf_unfiltered (file,\n" |
| printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" |
| printf " gdbarch_${function}_p (current_gdbarch));\n" |
| fi |
| # Print the macro definition. |
| if test -n "${macro}" |
| then |
| printf "#ifdef ${macro}\n" |
| if class_is_function_p |
| then |
| printf " fprintf_unfiltered (file,\n" |
| printf " \"gdbarch_dump: %%s # %%s\\\\n\",\n" |
| printf " \"${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 |
| printf "#endif\n" |
| fi |
| # Print the corresponding value. |
| if class_is_function_p |
| then |
| printf " fprintf_unfiltered (file,\n" |
| printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n" |
| printf " (long) current_gdbarch->${function});\n" |
| else |
| # It is a variable |
| case "${print}:${returntype}" in |
| :CORE_ADDR ) |
| fmt="0x%s" |
| print="paddr_nz (current_gdbarch->${function})" |
| ;; |
| :* ) |
| fmt="%s" |
| print="paddr_d (current_gdbarch->${function})" |
| ;; |
| * ) |
| fmt="%s" |
| ;; |
| esac |
| printf " fprintf_unfiltered (file,\n" |
| printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}" |
| printf " ${print});\n" |
| fi |
| done |
| cat <<EOF |
| if (current_gdbarch->dump_tdep != NULL) |
| current_gdbarch->dump_tdep (current_gdbarch, file); |
| } |
| EOF |
| |
| |
| # GET/SET |
| printf "\n" |
| cat <<EOF |
| struct gdbarch_tdep * |
| gdbarch_tdep (struct gdbarch *gdbarch) |
| { |
| if (gdbarch_debug >= 2) |
| fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); |
| return gdbarch->tdep; |
| } |
| |
| struct obstack * |
| gdbarch_obstack (struct gdbarch *gdbarch) |
| { |
| if (gdbarch_debug >= 2) |
| fprintf_unfiltered (gdb_stdlog, "gdbarch_obstack called\\n"); |
| return gdbarch->obstack; |
| } |
| EOF |
| printf "\n" |
| function_list | while do_read |
| do |
| if class_is_predicate_p |
| then |
| printf "\n" |
| printf "int\n" |
| printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" |
| printf "{\n" |
| printf " gdb_assert (gdbarch != NULL);\n" |
| printf " return ${predicate};\n" |
| printf "}\n" |
| fi |
| if class_is_function_p |
| then |
| printf "\n" |
| printf "${returntype}\n" |
| if [ "x${formal}" = "xvoid" ] |
| then |
| printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" |
| else |
| printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" |
| fi |
| printf "{\n" |
| printf " gdb_assert (gdbarch != NULL);\n" |
| printf " gdb_assert (gdbarch->${function} != NULL);\n" |
| if class_is_predicate_p && test -n "${predefault}" |
| then |
| # Allow a call to a function with a predicate. |
| printf " /* Do not check predicate: ${predicate}, allow call. */\n" |
| fi |
| printf " if (gdbarch_debug >= 2)\n" |
| printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${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_${function} (struct gdbarch *gdbarch)\n" |
| printf "{\n" |
| printf " gdb_assert (gdbarch != NULL);\n" |
| if [ "x${invalid_p}" = "x0" ] |
| then |
| printf " /* Skip verify of ${function}, invalid_p == 0 */\n" |
| elif [ -n "${invalid_p}" ] |
| then |
| printf " /* Check variable is valid. */\n" |
| printf " gdb_assert (!(${invalid_p}));\n" |
| elif [ -n "${predefault}" ] |
| then |
| printf " /* Check variable changed from pre-default. */\n" |
| printf " gdb_assert (gdbarch->${function} != ${predefault});\n" |
| fi |
| printf " if (gdbarch_debug >= 2)\n" |
| printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${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_${function} (struct gdbarch *gdbarch)\n" |
| printf "{\n" |
| printf " gdb_assert (gdbarch != NULL);\n" |
| printf " if (gdbarch_debug >= 2)\n" |
| printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" |
| printf " return gdbarch->${function};\n" |
| printf "}\n" |
| fi |
| done |
| |
| # All the trailing guff |
| cat <<EOF |
| |
| |
| /* Keep a registry of per-architecture data-pointers required by GDB |
| modules. */ |
| |
| struct gdbarch_data |
| { |
| unsigned index; |
| int init_p; |
| gdbarch_data_pre_init_ftype *pre_init; |
| gdbarch_data_post_init_ftype *post_init; |
| }; |
| |
| struct gdbarch_data_registration |
| { |
| struct gdbarch_data *data; |
| struct gdbarch_data_registration *next; |
| }; |
| |
| struct gdbarch_data_registry |
| { |
| unsigned nr; |
| struct gdbarch_data_registration *registrations; |
| }; |
| |
| struct gdbarch_data_registry gdbarch_data_registry = |
| { |
| 0, NULL, |
| }; |
| |
| static struct gdbarch_data * |
| gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init, |
| gdbarch_data_post_init_ftype *post_init) |
| { |
| struct gdbarch_data_registration **curr; |
| /* Append the new registraration. */ |
| for (curr = &gdbarch_data_registry.registrations; |
| (*curr) != NULL; |
| curr = &(*curr)->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->pre_init = pre_init; |
| (*curr)->data->post_init = post_init; |
| (*curr)->data->init_p = 1; |
| return (*curr)->data; |
| } |
| |
| struct gdbarch_data * |
| gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init) |
| { |
| return gdbarch_data_register (pre_init, NULL); |
| } |
| |
| struct gdbarch_data * |
| gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init) |
| { |
| return gdbarch_data_register (NULL, post_init); |
| } |
| |
| /* 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 = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); |
| } |
| |
| /* Initialize the current value of the specified per-architecture |
| data-pointer. */ |
| |
| void |
| deprecated_set_gdbarch_data (struct gdbarch *gdbarch, |
| struct gdbarch_data *data, |
| void *pointer) |
| { |
| gdb_assert (data->index < gdbarch->nr_data); |
| gdb_assert (gdbarch->data[data->index] == NULL); |
| gdb_assert (data->pre_init == NULL); |
| gdbarch->data[data->index] = pointer; |
| } |
| |
| /* Return the current value of the specified per-architecture |
| data-pointer. */ |
| |
| void * |
| gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) |
| { |
| gdb_assert (data->index < gdbarch->nr_data); |
| if (gdbarch->data[data->index] == NULL) |
| { |
| /* The data-pointer isn't initialized, call init() to get a |
| value. */ |
| if (data->pre_init != NULL) |
| /* Mid architecture creation: pass just the obstack, and not |
| the entire architecture, as that way it isn't possible for |
| pre-init code to refer to undefined architecture |
| fields. */ |
| gdbarch->data[data->index] = data->pre_init (gdbarch->obstack); |
| else if (gdbarch->initialized_p |
| && data->post_init != NULL) |
| /* Post architecture creation: pass the entire architecture |
| (as all fields are valid), but be careful to also detect |
| recursive references. */ |
| { |
| gdb_assert (data->init_p); |
| data->init_p = 0; |
| gdbarch->data[data->index] = data->post_init (gdbarch); |
| data->init_p = 1; |
| } |
| else |
| /* The architecture initialization hasn't completed - punt - |
| hope that the caller knows what they are doing. Once |
| deprecated_set_gdbarch_data has been initialized, this can be |
| changed to an internal error. */ |
| return NULL; |
| gdb_assert (gdbarch->data[data->index] != NULL); |
| } |
| return 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 |
| deprecated_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 |
| current_gdbarch_swap_init_hack (void) |
| { |
| struct gdbarch_swap_registration *rego; |
| struct gdbarch_swap **curr = ¤t_gdbarch->swap; |
| for (rego = gdbarch_swap_registry.registrations; |
| rego != NULL; |
| rego = rego->next) |
| { |
| if (rego->data != NULL) |
| { |
| (*curr) = GDBARCH_OBSTACK_ZALLOC (current_gdbarch, |
| struct gdbarch_swap); |
| (*curr)->source = rego; |
| (*curr)->swap = gdbarch_obstack_zalloc (current_gdbarch, |
| rego->sizeof_data); |
| (*curr)->next = NULL; |
| curr = &(*curr)->next; |
| } |
| if (rego->init != NULL) |
| rego->init (); |
| } |
| } |
| |
| static struct gdbarch * |
| current_gdbarch_swap_out_hack (void) |
| { |
| struct gdbarch *old_gdbarch = current_gdbarch; |
| struct gdbarch_swap *curr; |
| |
| gdb_assert (old_gdbarch != NULL); |
| for (curr = old_gdbarch->swap; |
| curr != NULL; |
| curr = curr->next) |
| { |
| memcpy (curr->swap, curr->source->data, curr->source->sizeof_data); |
| memset (curr->source->data, 0, curr->source->sizeof_data); |
| } |
| current_gdbarch = NULL; |
| return old_gdbarch; |
| } |
| |
| static void |
| current_gdbarch_swap_in_hack (void *argument) |
| { |
| struct gdbarch *new_gdbarch = argument; |
| struct gdbarch_swap *curr; |
| |
| gdb_assert (current_gdbarch == NULL); |
| for (curr = new_gdbarch->swap; |
| curr != NULL; |
| curr = curr->next) |
| memcpy (curr->source->data, curr->swap, curr->source->sizeof_data); |
| current_gdbarch = new_gdbarch; |
| } |
| |
| |
| /* 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) |
| { |
| /* 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; |
| } |
| |
| |
| 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; |
| } |
| |
| 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. */ |
| |
| 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; |
| if (info->osabi != arches->gdbarch->osabi) |
| continue; |
| |
| if (info->feature_set && !arches->gdbarch->feature_set) |
| continue; |
| if (!info->feature_set && arches->gdbarch->feature_set) |
| continue; |
| if (info->feature_set |
| && !features_same_p (info->feature_set, arches->gdbarch->feature_set)) |
| continue; |
| |
| return arches; |
| } |
| return NULL; |
| } |
| |
| |
| /* Find an architecture that matches the specified INFO. Create a new |
| architecture if needed. Return that new architecture. Assumes |
| that there is no current architecture. */ |
| |
| static struct gdbarch * |
| find_arch_by_info (struct gdbarch *old_gdbarch, struct gdbarch_info info) |
| { |
| struct gdbarch *new_gdbarch; |
| struct gdbarch_registration *rego; |
| |
| /* The existing architecture has been swapped out - all this code |
| works from a clean slate. */ |
| gdb_assert (current_gdbarch == NULL); |
| |
| /* Fill in missing parts of the INFO struct using a number of |
| sources: "set ..."; INFOabfd supplied; and the existing |
| architecture. */ |
| gdbarch_info_fill (old_gdbarch, &info); |
| |
| /* Must have found some sort of architecture. */ |
| gdb_assert (info.bfd_arch_info != NULL); |
| |
| if (gdbarch_debug) |
| { |
| fprintf_unfiltered (gdb_stdlog, |
| "find_arch_by_info: info.bfd_arch_info %s\n", |
| (info.bfd_arch_info != NULL |
| ? info.bfd_arch_info->printable_name |
| : "(null)")); |
| fprintf_unfiltered (gdb_stdlog, |
| "find_arch_by_info: 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, |
| "find_arch_by_info: info.osabi %d (%s)\n", |
| info.osabi, gdbarch_osabi_name (info.osabi)); |
| fprintf_unfiltered (gdb_stdlog, |
| "find_arch_by_info: info.abfd 0x%lx\n", |
| (long) info.abfd); |
| fprintf_unfiltered (gdb_stdlog, |
| "find_arch_by_info: info.tdep_info 0x%lx\n", |
| (long) info.tdep_info); |
| } |
| |
| /* Find the tdep code 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, "find_arch_by_info: " |
| "No matching architecture\n"); |
| return 0; |
| } |
| |
| /* Ask the tdep code for an architecture that matches "info". */ |
| new_gdbarch = rego->init (info, rego->arches); |
| |
| /* Did the tdep code like it? No. Reject the change and revert to |
| the old architecture. */ |
| if (new_gdbarch == NULL) |
| { |
| if (gdbarch_debug) |
| fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| "Target rejected architecture\n"); |
| return NULL; |
| } |
| |
| /* Is this a pre-existing architecture (as determined by already |
| being initialized)? Move it to the front of the architecture |
| list (keeping the list sorted Most Recently Used). */ |
| if (new_gdbarch->initialized_p) |
| { |
| struct gdbarch_list **list; |
| struct gdbarch_list *this; |
| if (gdbarch_debug) |
| fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| "Previous architecture 0x%08lx (%s) selected\n", |
| (long) new_gdbarch, |
| new_gdbarch->bfd_arch_info->printable_name); |
| /* Find the existing arch in the list. */ |
| for (list = ®o->arches; |
| (*list) != NULL && (*list)->gdbarch != new_gdbarch; |
| list = &(*list)->next); |
| /* It had better be in the list of architectures. */ |
| gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); |
| /* Unlink THIS. */ |
| this = (*list); |
| (*list) = this->next; |
| /* Insert THIS at the front. */ |
| this->next = rego->arches; |
| rego->arches = this; |
| /* Return it. */ |
| return new_gdbarch; |
| } |
| |
| /* It's a new architecture. */ |
| if (gdbarch_debug) |
| fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " |
| "New architecture 0x%08lx (%s) selected\n", |
| (long) new_gdbarch, |
| new_gdbarch->bfd_arch_info->printable_name); |
| |
| /* Insert the new architecture into the front of the architecture |
| list (keep the list sorted Most Recently Used). */ |
| { |
| struct gdbarch_list *this = XMALLOC (struct gdbarch_list); |
| this->next = rego->arches; |
| this->gdbarch = new_gdbarch; |
| rego->arches = this; |
| } |
| |
| /* 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); |
| new_gdbarch->initialized_p = 1; |
| |
| /* Initialize any per-architecture swap areas. This phase requires |
| a valid global CURRENT_GDBARCH. Set it momentarially, and then |
| swap the entire architecture out. */ |
| current_gdbarch = new_gdbarch; |
| current_gdbarch_swap_init_hack (); |
| current_gdbarch_swap_out_hack (); |
| |
| if (gdbarch_debug) |
| gdbarch_dump (new_gdbarch, gdb_stdlog); |
| |
| return new_gdbarch; |
| } |
| |
| struct gdbarch * |
| gdbarch_find_by_info (struct gdbarch_info info) |
| { |
| /* Save the previously selected architecture, setting the global to |
| NULL. This stops things like gdbarch->init() trying to use the |
| previous architecture's configuration. The previous architecture |
| may not even be of the same architecture family. The most recent |
| architecture of the same family is found at the head of the |
| rego->arches list. */ |
| struct gdbarch *old_gdbarch = current_gdbarch_swap_out_hack (); |
| struct cleanup *back_to; |
| |
| /* Make sure we restore current_gdbarch on our way out if an error |
| occurs. */ |
| back_to = make_cleanup (current_gdbarch_swap_in_hack, old_gdbarch); |
| |
| /* Find the specified architecture. */ |
| struct gdbarch *new_gdbarch = find_arch_by_info (old_gdbarch, info); |
| |
| /* Restore the existing architecture. */ |
| gdb_assert (current_gdbarch == NULL); |
| do_cleanups (back_to); |
| |
| return new_gdbarch; |
| } |
| |
| /* Make the specified architecture current, swapping the existing one |
| out. */ |
| |
| void |
| deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch) |
| { |
| gdb_assert (new_gdbarch != NULL); |
| gdb_assert (current_gdbarch != NULL); |
| gdb_assert (new_gdbarch->initialized_p); |
| current_gdbarch_swap_out_hack (); |
| current_gdbarch_swap_in_hack (new_gdbarch); |
| architecture_changed_event (); |
| flush_cached_frames (); |
| } |
| |
| extern void _initialize_gdbarch (void); |
| |
| void |
| _initialize_gdbarch (void) |
| { |
| struct cmd_list_element *c; |
| |
| add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\ |
| Set architecture debugging."), _("\\ |
| Show architecture debugging."), _("\\ |
| When non-zero, architecture debugging is enabled."), |
| NULL, |
| show_gdbarch_debug, |
| &setdebuglist, &showdebuglist); |
| } |
| EOF |
| |
| # close things off |
| exec 1>&2 |
| #../move-if-change new-gdbarch.c gdbarch.c |
| compare_new gdbarch.c |