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Diffstat (limited to 'contrib/gdb/gdb/gdbarch.sh')
| -rwxr-xr-x | contrib/gdb/gdb/gdbarch.sh | 2240 |
1 files changed, 2240 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/gdbarch.sh b/contrib/gdb/gdb/gdbarch.sh new file mode 100755 index 0000000..310d3c4 --- /dev/null +++ b/contrib/gdb/gdb/gdbarch.sh @@ -0,0 +1,2240 @@ +#!/bin/sh -u + +# Architecture commands for GDB, the GNU debugger. +# Copyright 1998, 1999, 2000, 2001, 2002 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 -u ${file} new-${file} + then + echo "${file} unchanged" 1>&2 + else + echo "${file} has changed? cp new-${file} ${file}" 1>&2 + fi +} + + +# Format of the input table +read="class level macro returntype function formal actual attrib staticdefault predefault postdefault invalid_p fmt print print_p description" + +do_read () +{ + comment="" + class="" + while read line + do + if test "${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 ${read} <<EOF +${line} +EOF + IFS="${OFS}" + + # .... 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 ${r}="" + fi + done + + case "${level}" in + 1 ) gt_level=">= GDB_MULTI_ARCH_PARTIAL" ;; + 2 ) gt_level="> GDB_MULTI_ARCH_PARTIAL" ;; + "" ) ;; + * ) error "Error: bad level for ${function}" 1>&2 ; kill $$ ; exit 1 ;; + esac + + case "${class}" in + m ) staticdefault="${predefault}" ;; + M ) staticdefault="0" ;; + * ) test "${staticdefault}" || staticdefault=0 ;; + esac + # NOT YET: Breaks BELIEVE_PCC_PROMOTION and confuses non- + # multi-arch defaults. + # test "${predefault}" || predefault=0 + + # come up with a format, use a few guesses for variables + case ":${class}:${fmt}:${print}:" in + :[vV]::: ) + if [ "${returntype}" = int ] + then + fmt="%d" + print="${macro}" + elif [ "${returntype}" = long ] + then + fmt="%ld" + print="${macro}" + fi + ;; + esac + test "${fmt}" || fmt="%ld" + test "${print}" || print="(long) ${macro}" + + case "${invalid_p}" in + 0 ) valid_p=1 ;; + "" ) + if [ -n "${predefault}" ] + then + #invalid_p="gdbarch->${function} == ${predefault}" + valid_p="gdbarch->${function} != ${predefault}" + else + #invalid_p="gdbarch->${function} == 0" + valid_p="gdbarch->${function} != 0" + fi + ;; + * ) valid_p="!(${invalid_p})" + 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 + + 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. + + *) + echo "Bad field ${field}" + exit 1;; + esac +done + + +function_list () +{ + # See below (DOCO) for description of each field + cat <<EOF +i:2:TARGET_ARCHITECTURE:const struct bfd_arch_info *:bfd_arch_info::::&bfd_default_arch_struct::::%s:TARGET_ARCHITECTURE->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 <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 +# 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):8*TARGET_CHAR_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 +f:2:PRINT_FLOAT_INFO:void:print_float_info:void::::default_print_float_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 +# setjmp/longjmp support. +F:2:GET_LONGJMP_TARGET:int:get_longjmp_target:CORE_ADDR *pc:pc::0:0 +# +# Non multi-arch DUMMY_FRAMES are a mess (multi-arch ones are not that +# much better but at least they are vaguely consistent). The headers +# and body contain convoluted #if/#else sequences for determine how +# things should be compiled. Instead of trying to mimic that +# behaviour here (and hence entrench it further) gdbarch simply +# reqires that these methods be set up from the word go. This also +# avoids any potential problems with moving beyond multi-arch partial. +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 +# GET_SAVED_REGISTER is like DUMMY_FRAMES. It is at level one as the +# old code has strange #ifdef interaction. So far no one has found +# that default_get_saved_register() is the default they are after. +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:2: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:2: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:::default_push_arguments::0 +f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-:::0 +F:2: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 +# Define a default FRAME_CHAIN_VALID, in the form that is suitable for +# most targets. If FRAME_CHAIN_VALID returns zero it means that the +# given frame is the outermost one and has no caller. +# +# XXXX - both default and alternate frame_chain_valid functions are +# deprecated. New code should use dummy frames and one of the generic +# functions. +f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::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:2: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::::::default_double_format (gdbarch) +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 +# It is not at all clear why SMASH_TEXT_ADDRESS is not folded into +# ADDR_BITS_REMOVE. +f:2:SMASH_TEXT_ADDRESS: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: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 +f:2:ELF_MAKE_MSYMBOL_SPECIAL:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym:::default_elf_make_msymbol_special::0 +f:2:COFF_MAKE_MSYMBOL_SPECIAL:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym:::default_coff_make_msymbol_special::0 +EOF +} + +# +# The .log file +# +exec > new-gdbarch.log +function_list | while do_read +do + cat <<EOF +${class} ${macro}(${actual}) + ${returntype} ${function} ($formal)${attrib} +EOF + for r in ${read} + do + eval echo \"\ \ \ \ ${r}=\${${r}}\" + done +# #fallbackdefault=${fallbackdefault} +# #valid_p=${valid_p} +#EOF + if class_is_predicate_p && fallback_default_p + then + echo "Error: predicate function ${macro} 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 $$ + exit 1 + fi + if class_is_multiarch_p + then + if class_is_predicate_p ; then : + elif test "x${predefault}" = "x" + then + echo "Error: pure multi-arch function must have a predefault" 1>&2 + kill $$ + 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 1998, 1999, 2000, 2001, 2002 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. */ + +/* 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 + +#include "dis-asm.h" /* Get defs for disassemble_info, which unfortunately is a typedef. */ +#if !GDB_MULTI_ARCH +#include "value.h" /* For default_coerce_float_to_double which is referenced by a macro. */ +#endif + +struct frame_info; +struct value; +struct objfile; +struct minimal_symbol; + +extern struct gdbarch *current_gdbarch; + + +/* If any of the following are defined, the target wasn't correctly + converted. */ + +#if GDB_MULTI_ARCH +#if defined (EXTRA_FRAME_INFO) +#error "EXTRA_FRAME_INFO: replaced by struct frame_extra_info" +#endif +#endif + +#if GDB_MULTI_ARCH +#if defined (FRAME_FIND_SAVED_REGS) +#error "FRAME_FIND_SAVED_REGS: replaced by FRAME_INIT_SAVED_REGS" +#endif +#endif + +#if (GDB_MULTI_ARCH >= 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 ${gt_level}) && defined (${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 ${gt_level}) || !defined (${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 ${gt_level}) && defined (${macro}_P)\n" + printf "#error \"Non multi-arch definition of ${macro}\"\n" + printf "#endif\n" + printf "#if (GDB_MULTI_ARCH ${gt_level}) || !defined (${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 ${gt_level}) && defined (${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 ${gt_level}) || !defined (${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 ${gt_level}) && defined (${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 ${gt_level}) || !defined (${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 <<EOF + +extern struct gdbarch_tdep *gdbarch_tdep (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 INIT function parameter INFO shall, as far as possible, be + pre-initialized with information obtained from INFO.ABFD or + previously selected architecture (if similar). + + 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; +}; + +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 andTDEP + 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. 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); + + + +/* 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. + + The per-architecture data-pointer can be initialized in one of two + ways: The value can be set explicitly using a call to + set_gdbarch_data(); the value can be set implicitly using the value + returned by a non-NULL INIT() callback. INIT(), when non-NULL is + called after the basic architecture vector has been created. + + When a previously created architecture is re-selected, the + per-architecture data-pointer for that previous architecture is + restored. INIT() is not called. + + During initialization, multiple assignments of the data-pointer are + allowed, non-NULL values are deleted by calling FREE(). If the + architecture is deleted using gdbarch_free() all non-NULL data + pointers are also deleted using FREE(). + + Multiple registrarants for any architecture are allowed (and + strongly encouraged). */ + +struct gdbarch_data; + +typedef void *(gdbarch_data_init_ftype) (struct gdbarch *gdbarch); +typedef void (gdbarch_data_free_ftype) (struct gdbarch *gdbarch, + void *pointer); +extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_init_ftype *init, + gdbarch_data_free_ftype *free); +extern void set_gdbarch_data (struct gdbarch *gdbarch, + struct gdbarch_data *data, + void *pointer); + +extern void *gdbarch_data (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 register_gdbarch_data(). */ + +typedef void (gdbarch_swap_ftype) (void); +extern void register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init); +#define REGISTER_GDBARCH_SWAP(VAR) register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL) + + + +/* The target-system-dependent byte order is dynamic */ + +extern int target_byte_order; +#ifndef TARGET_BYTE_ORDER +#define TARGET_BYTE_ORDER (target_byte_order + 0) +#endif + +extern int target_byte_order_auto; +#ifndef TARGET_BYTE_ORDER_AUTO +#define TARGET_BYTE_ORDER_AUTO (target_byte_order_auto + 0) +#endif + + + +/* The target-system-dependent BFD architecture is dynamic */ + +extern int target_architecture_auto; +#ifndef TARGET_ARCHITECTURE_AUTO +#define TARGET_ARCHITECTURE_AUTO (target_architecture_auto + 0) +#endif + +extern const struct bfd_arch_info *target_architecture; +#ifndef TARGET_ARCHITECTURE +#define TARGET_ARCHITECTURE (target_architecture + 0) +#endif + + +/* The target-system-dependent disassembler is semi-dynamic */ + +extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, + unsigned int len, disassemble_info *info); + +extern void dis_asm_memory_error (int status, bfd_vma memaddr, + disassemble_info *info); + +extern void dis_asm_print_address (bfd_vma addr, + disassemble_info *info); + +extern int (*tm_print_insn) (bfd_vma, disassemble_info*); +extern disassemble_info tm_print_insn_info; +#ifndef TARGET_PRINT_INSN_INFO +#define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) +#endif + + + +/* 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); + +/* For non-multiarched targets, do any initialization of the default + gdbarch object necessary after the _initialize_MODULE functions + have run. */ +extern void initialize_non_multiarch (); + +/* 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" + +#if GDB_MULTI_ARCH +#include "gdbcmd.h" +#include "inferior.h" /* enum CALL_DUMMY_LOCATION et.al. */ +#else +/* Just include everything in sight so that the every old definition + of macro is visible. */ +#include "gdb_string.h" +#include <ctype.h> +#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 <<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 *${function}${attrib};\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 " /* basic architecture information */\n" +function_list | while do_read +do + if class_is_info_p + then + printf " ${staticdefault},\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 " ${staticdefault},\n" + fi +done +cat <<EOF + /* startup_gdbarch() */ +}; + +struct gdbarch *current_gdbarch = &startup_gdbarch; + +/* Do any initialization needed for a non-multiarch configuration + after the _initialize_MODULE functions have been run. */ +void +initialize_non_multiarch () +{ + alloc_gdbarch_data (&startup_gdbarch); + init_gdbarch_data (&startup_gdbarch); +} +EOF + +# Create a new gdbarch struct +printf "\n" +printf "\n" +cat <<EOF +/* Create a new \`\`struct gdbarch'' based on information provided by + \`\`struct gdbarch_info''. */ +EOF +printf "\n" +cat <<EOF +struct gdbarch * +gdbarch_alloc (const struct gdbarch_info *info, + struct gdbarch_tdep *tdep) +{ + /* NOTE: The new architecture variable is named \`\`current_gdbarch'' + so that macros such as TARGET_DOUBLE_BIT, when expanded, refer to + the current local architecture and not the previous global + architecture. This ensures that the new architectures initial + values are not influenced by the previous architecture. Once + everything is parameterised with gdbarch, this will go away. */ + struct gdbarch *current_gdbarch = XMALLOC (struct gdbarch); + memset (current_gdbarch, 0, sizeof (*current_gdbarch)); + + alloc_gdbarch_data (current_gdbarch); + + current_gdbarch->tdep = tdep; +EOF +printf "\n" +function_list | while do_read +do + if class_is_info_p + then + printf " current_gdbarch->${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} = ${predefault};\n" + fi + fi +done +cat <<EOF + /* gdbarch_alloc() */ + + return current_gdbarch; +} +EOF + +# Free a gdbarch struct. +printf "\n" +printf "\n" +cat <<EOF +/* Free a gdbarch struct. This should never happen in normal + operation --- once you've created a gdbarch, you keep it around. + However, if an architecture's init function encounters an error + building the structure, it may need to clean up a partially + constructed gdbarch. */ + +void +gdbarch_free (struct gdbarch *arch) +{ + gdb_assert (arch != NULL); + free_gdbarch_data (arch); + xfree (arch); +} +EOF + +# verify a new architecture +printf "\n" +printf "\n" +printf "/* Ensure that all values in a GDBARCH are reasonable. */\n" +printf "\n" +cat <<EOF +static void +verify_gdbarch (struct gdbarch *gdbarch) +{ + struct ui_file *log; + struct cleanup *cleanups; + long dummy; + char *buf; + /* Only perform sanity checks on a multi-arch target. */ + if (!GDB_MULTI_ARCH) + return; + log = mem_fileopen (); + cleanups = make_cleanup_ui_file_delete (log); + /* fundamental */ + if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) + fprintf_unfiltered (log, "\n\tbyte-order"); + if (gdbarch->bfd_arch_info == NULL) + fprintf_unfiltered (log, "\n\tbfd_arch_info"); + /* Check those that need to be defined for the given multi-arch level. */ +EOF +function_list | while do_read +do + if class_is_function_p || class_is_variable_p + then + if [ "x${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 ${gt_level})\n" + printf " && (${invalid_p}))\n" + printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" + elif [ -n "${predefault}" ] + then + printf " if ((GDB_MULTI_ARCH ${gt_level})\n" + printf " && (gdbarch->${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 *gdbarch, struct ui_file *file) +{ + fprintf_unfiltered (file, + "gdbarch_dump: GDB_MULTI_ARCH = %d\\n", + GDB_MULTI_ARCH); +EOF +function_list | sort -t: +2 | while do_read +do + # multiarch functions don't have macros. + if class_is_multiarch_p + then + printf " if (GDB_MULTI_ARCH)\n" + printf " fprintf_unfiltered (file,\n" + printf " \"gdbarch_dump: ${function} = 0x%%08lx\\\\n\",\n" + printf " (long) current_gdbarch->${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 " ${print});\n" + fi + printf "#endif\n" +done +cat <<EOF + if (current_gdbarch->dump_tdep != NULL) + current_gdbarch->dump_tdep (current_gdbarch, file); +} +EOF + + +# GET/SET +printf "\n" +cat <<EOF +struct gdbarch_tdep * +gdbarch_tdep (struct gdbarch *gdbarch) +{ + if (gdbarch_debug >= 2) + fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); + return gdbarch->tdep; +} +EOF +printf "\n" +function_list | while do_read +do + if class_is_predicate_p + then + printf "\n" + printf "int\n" + printf "gdbarch_${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 <<EOF + + +/* Keep a registry of per-architecture data-pointers required by GDB + modules. */ + +struct gdbarch_data +{ + unsigned index; + gdbarch_data_init_ftype *init; + gdbarch_data_free_ftype *free; +}; + +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, +}; + +struct gdbarch_data * +register_gdbarch_data (gdbarch_data_init_ftype *init, + gdbarch_data_free_ftype *free) +{ + struct gdbarch_data_registration **curr; + 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->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 |
