| #!/usr/local/bin/bash |
| |
| # Architecture commands for GDB, the GNU debugger. |
| # Copyright 1998-1999 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. |
| |
| read="class level macro returntype function formal actual attrib default init init_p fmt print print_p description" |
| |
| # dump out/verify the doco |
| for field in ${read} |
| do |
| case ${field} in |
| |
| class ) : ;; |
| # # -> line disable |
| # f -> function |
| # hiding a function |
| # v -> variable |
| # hiding a variable |
| # i -> set from info |
| # hiding something from the ``struct info'' object |
| |
| level ) : ;; |
| |
| # See GDB_MULTI_ARCH description. Having GDB_MULTI_ARCH >= |
| # LEVEL is a predicate on checking that a given method is |
| # initialized (using INIT_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. |
| |
| default ) : ;; |
| |
| # To help with the GDB startup a default static gdbarch object |
| # is created. DEFAULT is the value to insert into that |
| # array. It defaults to ZERO. |
| |
| init ) : ;; |
| |
| # Any initial value to assign to the member after it is been |
| # MALLOCed. Defaults to zero. |
| |
| init_p ) : ;; |
| |
| # A predicate equation that tests to see if the code creating |
| # the new architecture has correctly updated this |
| # MEMBER. Default is to check that the value is no longer equal |
| # to INIT. |
| |
| fmt ) : ;; |
| |
| # printf style format string that can be used to print out the |
| # MEMBER. The default is to assume "%ld" is safe. Sometimes |
| # "%s" is useful. For functions, this is ignored and the |
| # function address is printed. |
| |
| print ) : ;; |
| |
| # An optional equation that converts the MEMBER into a value |
| # suitable for that FMT. By default it is assumed that the |
| # member's MACRO cast to long is safe. |
| |
| print_p ) : ;; |
| |
| # An optional indicator for any predicte to wrap around the |
| # print member code. |
| # # -> Wrap print up in ``#ifdef MACRO'' |
| # exp -> Wrap print up in ``if (${print_p}) ... |
| |
| description ) : ;; |
| |
| # Currently unused. |
| |
| *) exit 1;; |
| esac |
| done |
| |
| IFS=: |
| |
| 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::::BIG_ENDIAN |
| # |
| v:1:TARGET_PTR_BIT:int:ptr_bit::::8 * sizeof (void*):0 |
| #v:1:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):0 |
| v:1:TARGET_SHORT_BIT:int:short_bit::::8 * sizeof (short):0 |
| v:1:TARGET_INT_BIT:int:int_bit::::8 * sizeof (int):0 |
| v:1:TARGET_LONG_BIT:int:long_bit::::8 * sizeof (long):0 |
| v:1:TARGET_LONG_LONG_BIT:int:long_long_bit::::8 * sizeof (LONGEST):0 |
| v:1:TARGET_FLOAT_BIT:int:float_bit::::8 * sizeof (float):0 |
| v:1:TARGET_DOUBLE_BIT:int:double_bit::::8 * sizeof (double):0 |
| v:1:TARGET_LONG_DOUBLE_BIT:int:long_double_bit::::8 * sizeof (long double):0 |
| # |
| f:1:TARGET_READ_PC:CORE_ADDR:read_pc:int pid:pid::0:0 |
| f:1:TARGET_WRITE_PC:void:write_pc:CORE_ADDR val, int pid:val, pid::0:0 |
| f:1:TARGET_READ_FP:CORE_ADDR:read_fp:void:::0:0 |
| f:1:TARGET_WRITE_FP:void:write_fp:CORE_ADDR val:val::0:0 |
| f:1:TARGET_READ_SP:CORE_ADDR:read_sp:void:::0:0 |
| f:1:TARGET_WRITE_SP:void:write_sp:CORE_ADDR val:val::0:0 |
| # |
| v:2:NUM_REGS:int:num_regs::::0:-1 |
| 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 |
| f:2:REGISTER_NAME:char *:register_name:int regnr:regnr::0:0 |
| 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::0:0 |
| 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::0:0 |
| 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 |
| # |
| v:1:USE_GENERIC_DUMMY_FRAMES:int:use_generic_dummy_frames::::0:-1 |
| v:2: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::0x%08lx |
| 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:2:PC_IN_CALL_DUMMY:int:pc_in_call_dummy:CORE_ADDR pc, CORE_ADDR sp, CORE_ADDR frame_address:pc, sp, frame_address::0:0 |
| v:1:CALL_DUMMY_P:int:call_dummy_p::::0:-1 |
| v:2:CALL_DUMMY_WORDS:LONGEST *:call_dummy_words::::0:::0x%08lx |
| v:2:SIZEOF_CALL_DUMMY_WORDS:int: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::0:0 |
| # |
| v:2:BELIEVE_PCC_PROMOTION:int:believe_pcc_promotion::::0:::::# |
| v:2:BELIEVE_PCC_PROMOTION_TYPE:int:believe_pcc_promotion_type::::0:::::# |
| f:1:GET_SAVED_REGISTER:void:get_saved_register:char *raw_buffer, int *optimized, CORE_ADDR *addrp, struct frame_info *frame, int regnum, enum lval_type *lval:raw_buffer, optimized, addrp, frame, regnum, lval::generic_get_saved_register:0 |
| # |
| f:1:REGISTER_CONVERTIBLE:int:register_convertible:int nr:nr::0:0 |
| 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 |
| # |
| f:2:EXTRACT_RETURN_VALUE:void:extract_return_value:struct type *type, char *regbuf, char *valbuf:type, regbuf, valbuf::0:0 |
| f:1:PUSH_ARGUMENTS:CORE_ADDR:push_arguments:int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:nargs, args, sp, struct_return, struct_addr::0:0 |
| f:2:PUSH_DUMMY_FRAME:void:push_dummy_frame:void:-::0:0 |
| f:1:PUSH_RETURN_ADDRESS:CORE_ADDR:push_return_address:CORE_ADDR pc, CORE_ADDR sp:pc, sp::0:0 |
| f:2:POP_FRAME:void:pop_frame:void:-::0:0 |
| # |
| # I wish that these would just go away.... |
| f:2:D10V_MAKE_DADDR:CORE_ADDR:d10v_make_daddr:CORE_ADDR x:x::0:0 |
| f:2:D10V_MAKE_IADDR:CORE_ADDR:d10v_make_iaddr:CORE_ADDR x:x::0:0 |
| f:2:D10V_DADDR_P:int:d10v_daddr_p:CORE_ADDR x:x::0:0 |
| f:2:D10V_IADDR_P:int:d10v_iaddr_p:CORE_ADDR x:x::0:0 |
| f:2:D10V_CONVERT_DADDR_TO_RAW:CORE_ADDR:d10v_convert_daddr_to_raw:CORE_ADDR x:x::0:0 |
| f:2:D10V_CONVERT_IADDR_TO_RAW:CORE_ADDR:d10v_convert_iaddr_to_raw:CORE_ADDR x:x::0:0 |
| # |
| f:2:STORE_STRUCT_RETURN:void:store_struct_return:CORE_ADDR addr, CORE_ADDR sp:addr, sp::0:0 |
| f:2:STORE_RETURN_VALUE:void:store_return_value:struct type *type, char *valbuf:type, valbuf::0:0 |
| f:2:EXTRACT_STRUCT_VALUE_ADDRESS:CORE_ADDR:extract_struct_value_address:char *regbuf:regbuf::0:0 |
| f:2:USE_STRUCT_CONVENTION:int:use_struct_convention:int gcc_p, struct type *value_type:gcc_p, value_type::0:0 |
| # |
| 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::0:0 |
| # |
| f:2:SKIP_PROLOGUE:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip::0:0 |
| 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::0:0 |
| v:2:DECR_PC_AFTER_BREAK:CORE_ADDR:decr_pc_after_break::::0:-1 |
| 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::0:0 |
| # |
| 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::0:0 |
| f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0 |
| f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0 |
| f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0 |
| f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0 |
| f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0 |
| f:2:SAVED_PC_AFTER_CALL:CORE_ADDR:saved_pc_after_call:struct frame_info *frame:frame::0:0 |
| f:2:FRAME_NUM_ARGS:int:frame_num_args:struct frame_info *frame:frame::0:0 |
| # |
| EOF |
| grep -v '^#' |
| } |
| |
| |
| # dump it out |
| if true |
| then |
| exec > new-gdbarch |
| function_list | while eval read $read |
| do |
| cat <<EOF |
| ${class} ${macro}(${actual}) |
| ${returntype} ${function} ($formal)${attrib} |
| level=${level} |
| default=${default} |
| init=${init} |
| init_p=${init_p} |
| fmt=${fmt} |
| print=${print} |
| print_p=${print_p} |
| description=${description} |
| EOF |
| done |
| exec 1>&2 |
| fi |
| |
| copyright () |
| { |
| cat <<EOF |
| /* Dynamic architecture support for GDB, the GNU debugger. |
| Copyright 1998-1999, 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. */ |
| |
| /* *INDENT-OFF* */ /* \`\`typedef (f)();'' confuses indent */ |
| |
| /* This file was created with the aid of \`\`gdbarch.sh''. |
| |
| The bourn 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 makeing 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 frame_info; |
| struct value; |
| |
| |
| #ifndef GDB_MULTI_ARCH |
| #define GDB_MULTI_ARCH 0 |
| #endif |
| |
| extern struct gdbarch *current_gdbarch; |
| |
| |
| /* See gdb/doc/gdbint.texi for a discussion of the GDB_MULTI_ARCH |
| macro */ |
| |
| |
| /* If any of the following are defined, the target wasn't correctly |
| converted. */ |
| |
| #if GDB_MULTI_ARCH |
| #if defined (CALL_DUMMY) |
| #error "CALL_DUMMY: replaced by CALL_DUMMY_WORDS/SIZEOF_CALL_DUMMY_WORDS" |
| #endif |
| #endif |
| |
| #if GDB_MULTI_ARCH |
| #if defined (REGISTER_NAMES) |
| #error "REGISTER_NAMES: replaced by REGISTER_NAME" |
| #endif |
| #endif |
| |
| #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 |
| EOF |
| |
| # function typedef's |
| echo "" |
| echo "" |
| echo "/* The following are pre-initialized by GDBARCH. */" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "i" ) |
| echo "" |
| echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| echo "/* set_gdbarch_${function}() - not applicable - pre-initialized. */" |
| echo "#if GDB_MULTI_ARCH" |
| echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| echo "#endif" |
| echo "#endif" |
| ;; |
| esac |
| done |
| |
| # function typedef's |
| echo "" |
| echo "" |
| echo "/* The following are initialized by the target dependant code. */" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "v" ) |
| echo "" |
| echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});" |
| echo "#if GDB_MULTI_ARCH" |
| echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| echo "#endif" |
| echo "#endif" |
| ;; |
| "f" ) |
| echo "" |
| echo "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});" |
| if [ "${formal}" = "void" ] |
| then |
| echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);" |
| else |
| echo "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});" |
| fi |
| echo "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});" |
| echo "#if GDB_MULTI_ARCH" |
| echo "#if (GDB_MULTI_ARCH > 1) || !defined (${macro})" |
| if [ "${actual}" = "" ] |
| then |
| echo "#define ${macro}() (gdbarch_${function} (current_gdbarch))" |
| elif [ "${actual}" = "-" ] |
| then |
| echo "#define ${macro} (gdbarch_${function} (current_gdbarch))" |
| else |
| echo "#define ${macro}(${actual}) (gdbarch_${function} (current_gdbarch, ${actual}))" |
| fi |
| echo "#endif" |
| echo "#endif" |
| ;; |
| esac |
| 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 independantly 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 independant) |
| 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). INIT shall ensure |
| that the INFO.BYTE_ORDER is non-zero. |
| |
| The INIT function shall return any of: NULL - indicating that it |
| doesn't reconize 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()). */ |
| |
| struct gdbarch_list |
| { |
| struct gdbarch *gdbarch; |
| struct gdbarch_list *next; |
| }; |
| |
| struct gdbarch_info |
| { |
| /* Use default: bfd_arch_unknown (ZERO). */ |
| enum bfd_architecture bfd_architecture; |
| |
| /* Use default: NULL (ZERO). */ |
| const struct bfd_arch_info *bfd_arch_info; |
| |
| /* Use default: 0 (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); |
| |
| extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); |
| |
| |
| /* 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. Force an update of the current architecture. Used |
| by legacy targets that have added their own target specific |
| architecture manipulation commands. |
| |
| The INFO parameter shall be fully initialized (\`\`memset (&INFO, |
| sizeof (info), 0)'' set relevant fields) before gdbarch_update() is |
| called. gdbarch_update() shall initialize any \`\`default'' fields |
| using information obtained from the previous architecture or |
| INFO.ABFD (if specified) before calling the corresponding |
| architectures INIT function. */ |
| |
| extern int gdbarch_update (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. |
| |
| When a new architecture is selected, INIT() is called. When a |
| previous architecture is re-selected, the per-architecture |
| data-pointer for that previous architecture is restored (INIT() is |
| not called). |
| |
| INIT() shall return the initial value for the per-architecture |
| data-pointer for the current architecture. |
| |
| Multiple registrarants for any architecture are allowed (and |
| strongly encouraged). */ |
| |
| typedef void *(gdbarch_data_ftype) (void); |
| extern struct gdbarch_data *register_gdbarch_data (gdbarch_data_ftype *init); |
| |
| /* Return the value of the per-architecture data-pointer for the |
| current architecture. */ |
| |
| 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); |
| |
| |
| |
| /* The target-system-dependant byte order is dynamic */ |
| |
| /* TARGET_BYTE_ORDER_SELECTABLE_P determines if the target endianness |
| is selectable at runtime. The user can use the \`\`set endian'' |
| command to change it. TARGET_BYTE_ORDER_AUTO is nonzero when |
| target_byte_order should be auto-detected (from the program image |
| say). */ |
| |
| #if GDB_MULTI_ARCH |
| /* Multi-arch GDB is always bi-endian. */ |
| #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| #endif |
| |
| #ifndef TARGET_BYTE_ORDER_SELECTABLE_P |
| /* compat - Catch old targets that define TARGET_BYTE_ORDER_SLECTABLE |
| when they should have defined TARGET_BYTE_ORDER_SELECTABLE_P 1 */ |
| #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| #define TARGET_BYTE_ORDER_SELECTABLE_P 1 |
| #else |
| #define TARGET_BYTE_ORDER_SELECTABLE_P 0 |
| #endif |
| #endif |
| |
| extern int target_byte_order; |
| #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| /* compat - Catch old targets that define TARGET_BYTE_ORDER_SELECTABLE |
| and expect defs.h to re-define TARGET_BYTE_ORDER. */ |
| #undef TARGET_BYTE_ORDER |
| #endif |
| #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-dependant 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 |
| |
| /* Notify the target dependant backend of a change to the selected |
| architecture. A zero return status indicates that the target did |
| not like the change. */ |
| |
| extern int (*target_architecture_hook) (const struct bfd_arch_info *); |
| |
| |
| |
| /* The target-system-dependant disassembler is semi-dynamic */ |
| |
| #include "dis-asm.h" /* Get defs for disassemble_info */ |
| |
| extern int dis_asm_read_memory (bfd_vma memaddr, bfd_byte *myaddr, |
| 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 |
| #define TARGET_PRINT_INSN(vma, info) (*tm_print_insn) (vma, info) |
| #endif |
| #ifndef TARGET_PRINT_INSN_INFO |
| #define TARGET_PRINT_INSN_INFO (&tm_print_insn_info) |
| #endif |
| |
| |
| |
| /* Explicit test for D10V architecture. |
| USE of these macro's is *STRONGLY* discouraged. */ |
| |
| #define GDB_TARGET_IS_D10V (TARGET_ARCHITECTURE->arch == bfd_arch_d10v) |
| #ifndef D10V_MAKE_DADDR |
| #define D10V_MAKE_DADDR(X) (internal_error ("gdbarch: D10V_MAKE_DADDR"), 0) |
| #endif |
| #ifndef D10V_MAKE_IADDR |
| #define D10V_MAKE_IADDR(X) (internal_error ("gdbarch: D10V_MAKE_IADDR"), 0) |
| #endif |
| |
| |
| /* Fallback definition of FRAMELESS_FUNCTION_INVOCATION */ |
| #ifndef FRAMELESS_FUNCTION_INVOCATION |
| #define FRAMELESS_FUNCTION_INVOCATION(FI) (0) |
| #endif |
| |
| |
| /* Fallback definition of REGISTER_CONVERTIBLE etc */ |
| extern int generic_register_convertible_not (int reg_nr); |
| #ifndef REGISTER_CONVERTIBLE |
| #define REGISTER_CONVERTIBLE(x) (0) |
| #endif |
| #ifndef REGISTER_CONVERT_TO_VIRTUAL |
| #define REGISTER_CONVERT_TO_VIRTUAL(x, y, z, a) |
| #endif |
| #ifndef REGISTER_CONVERT_TO_RAW |
| #define REGISTER_CONVERT_TO_RAW(x, y, z, a) |
| #endif |
| |
| |
| /* Fallback definition for EXTRACT_STRUCT_VALUE_ADDRESS */ |
| #ifndef EXTRACT_STRUCT_VALUE_ADDRESS |
| #define EXTRACT_STRUCT_VALUE_ADDRESS_P (0) |
| #define EXTRACT_STRUCT_VALUE_ADDRESS(X) (internal_error ("gdbarch: EXTRACT_STRUCT_VALUE_ADDRESS"), 0) |
| #else |
| #ifndef EXTRACT_STRUCT_VALUE_ADDRESS_P |
| #define EXTRACT_STRUCT_VALUE_ADDRESS_P (1) |
| #endif |
| #endif |
| |
| |
| /* Fallback definition for REGISTER_NAME for systems still defining |
| REGISTER_NAMES. */ |
| #ifndef REGISTER_NAME |
| extern char *gdb_register_names[]; |
| #define REGISTER_NAME(i) gdb_register_names[i] |
| #endif |
| |
| |
| /* Set the dynamic target-system-dependant parameters (architecture, |
| byte-order, ...) using information found in the BFD */ |
| |
| extern void set_gdbarch_from_file (bfd *); |
| |
| |
| /* Explicitly set the dynamic target-system-dependant parameters based |
| on bfd_architecture and machine. */ |
| |
| extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); |
| |
| |
| /* Helper function for targets that don't know how my arguments are |
| being passed */ |
| |
| extern int frame_num_args_unknown (struct frame_info *fi); |
| |
| |
| /* gdbarch trace variable */ |
| extern int gdbarch_debug; |
| |
| extern void gdbarch_dump (void); |
| |
| #endif |
| EOF |
| exec 1>&2 |
| #../move-if-change new-gdbarch.h gdbarch.h |
| if ! test -r gdbarch.h |
| then |
| echo "gdbarch.h missing? cp new-gdbarch.h gdbarch.h" 1>&2 |
| elif diff -c gdbarch.h new-gdbarch.h |
| then |
| echo "gdbarch.h unchanged" 1>&2 |
| else |
| echo "gdbarch.h has changed? cp new-gdbarch.h gdbarch.h" 1>&2 |
| fi |
| |
| |
| # |
| # C file |
| # |
| |
| exec > new-gdbarch.c |
| copyright |
| cat <<EOF |
| |
| #include "defs.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 "wait.h" |
| #include "gdbcore.h" |
| #include "gdbcmd.h" |
| #include "target.h" |
| #include "gdbthread.h" |
| #include "annotate.h" |
| #include "symfile.h" /* for overlay functions */ |
| #endif |
| #include "symcat.h" |
| |
| |
| /* Static function declarations */ |
| |
| static void verify_gdbarch (struct gdbarch *gdbarch); |
| static void init_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 |
| echo "" |
| echo "/* Maintain the struct gdbarch object */" |
| echo "" |
| echo "struct gdbarch" |
| echo "{" |
| echo " /* basic architectural information */" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "i" ) echo " ${returntype} ${function};" ;; |
| esac |
| done |
| echo "" |
| echo " /* target specific vector. */" |
| echo " struct gdbarch_tdep *tdep;" |
| echo "" |
| echo " /* per-architecture data-pointers */" |
| echo " int nr_data;" |
| echo " void **data;" |
| echo "" |
| echo " /* per-architecture swap-regions */" |
| echo " struct gdbarch_swap *swap;" |
| echo "" |
| 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 to so that the new |
| field is dumped out |
| |
| \`\`default_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 eval read $read |
| do |
| case "${class}" in |
| "v" ) echo " ${returntype} ${function};" ;; |
| "f" ) echo " gdbarch_${function}_ftype *${function}${attrib};" ;; |
| esac |
| done |
| echo "};" |
| |
| # A pre-initialized vector |
| echo "" |
| echo "" |
| cat <<EOF |
| /* The default architecture uses host values (for want of a better |
| choice). */ |
| EOF |
| echo "" |
| echo "extern const struct bfd_arch_info bfd_default_arch_struct;" |
| echo "" |
| echo "struct gdbarch default_gdbarch = {" |
| echo " /* basic architecture information */" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "i" ) echo " ${default}," ;; |
| esac |
| done |
| cat <<EOF |
| /* target specific vector */ |
| NULL, |
| /*per-architecture data-pointers and swap regions */ |
| 0, NULL, NULL, |
| /* Multi-arch values */ |
| EOF |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "f" | "v" ) echo " ${default}," ;; |
| esac |
| done |
| cat <<EOF |
| /* default_gdbarch() */ |
| }; |
| struct gdbarch *current_gdbarch = &default_gdbarch; |
| EOF |
| |
| # Create a new gdbarch struct |
| echo "" |
| echo "" |
| cat <<EOF |
| /* Create a new \`\`struct gdbarch'' based in information provided by |
| \`\`struct gdbarch_info''. */ |
| EOF |
| echo "" |
| cat <<EOF |
| struct gdbarch * |
| gdbarch_alloc (const struct gdbarch_info *info, |
| struct gdbarch_tdep *tdep) |
| { |
| struct gdbarch *gdbarch = XMALLOC (struct gdbarch); |
| memset (gdbarch, 0, sizeof (*gdbarch)); |
| |
| gdbarch->tdep = tdep; |
| EOF |
| echo "" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "i" ) echo " gdbarch->${function} = info->${function};" |
| esac |
| done |
| echo "" |
| echo " /* Force the explicit initialization of these. */" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "f" | "v" ) |
| if [ "${init}" != "" -a "${init}" != "0" ] |
| then |
| echo " gdbarch->${function} = ${init};" |
| fi |
| ;; |
| esac |
| done |
| cat <<EOF |
| /* gdbarch_alloc() */ |
| |
| return gdbarch; |
| } |
| EOF |
| |
| # verify a new architecture |
| echo "" |
| echo "" |
| echo "/* Ensure that all values in a GDBARCH are reasonable. */" |
| echo "" |
| cat <<EOF |
| static void |
| verify_gdbarch (struct gdbarch *gdbarch) |
| { |
| /* Only perform sanity checks on a multi-arch target. */ |
| if (GDB_MULTI_ARCH <= 0) |
| return; |
| /* fundamental */ |
| if (gdbarch->byte_order == 0) |
| internal_error ("verify_gdbarch: byte-order unset"); |
| if (gdbarch->bfd_arch_info == NULL) |
| internal_error ("verify_gdbarch: bfd_arch_info unset"); |
| /* Check those that need to be defined for the given multi-arch level. */ |
| EOF |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "f" | "v" ) |
| if [ "${init_p}" ] |
| then |
| echo " if ((GDB_MULTI_ARCH >= ${level})" |
| echo " && (${init_p}))" |
| echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| elif [ "${init}" ] |
| then |
| echo " if ((GDB_MULTI_ARCH >= ${level})" |
| echo " && (gdbarch->${function} == ${init}))" |
| echo " internal_error (\"gdbarch: verify_gdbarch: ${function} invalid\");" |
| fi |
| ;; |
| esac |
| done |
| cat <<EOF |
| } |
| EOF |
| |
| # dump the structure |
| echo "" |
| echo "" |
| echo "/* Print out the details of the current architecture. */" |
| echo "" |
| cat <<EOF |
| void |
| gdbarch_dump (void) |
| { |
| EOF |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "f" ) |
| echo " fprintf_unfiltered (gdb_stdlog," |
| echo " \"gdbarch_update: ${macro} = 0x%08lx\\n\"," |
| echo " (long) current_gdbarch->${function}" |
| echo " /*${macro} ()*/);" |
| ;; |
| * ) |
| test "${fmt}" || fmt="%ld" |
| test "${print}" || print="(long) ${macro}" |
| if [ "${print_p}" = "#" ] |
| then |
| echo "#ifdef ${macro}" |
| echo " fprintf_unfiltered (gdb_stdlog," |
| echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| echo " ${print});" |
| echo "#endif" |
| elif [ "${print_p}" ] |
| then |
| echo " if (${print_p})" |
| echo " fprintf_unfiltered (gdb_stdlog," |
| echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| echo " ${print});" |
| else |
| echo " fprintf_unfiltered (gdb_stdlog," |
| echo " \"gdbarch_update: ${macro} = ${fmt}\\n\"," |
| echo " ${print});" |
| fi |
| ;; |
| esac |
| done |
| echo "}" |
| |
| |
| # GET/SET |
| echo "" |
| cat <<EOF |
| struct gdbarch_tdep * |
| gdbarch_tdep (struct gdbarch *gdbarch) |
| { |
| if (gdbarch_debug >= 2) |
| /* FIXME: gdb_std??? */ |
| fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\n"); |
| return gdbarch->tdep; |
| } |
| EOF |
| echo "" |
| function_list | while eval read $read |
| do |
| case "${class}" in |
| "f" ) |
| echo "" |
| echo "${returntype}" |
| if [ "${formal}" = "void" ] |
| then |
| echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| else |
| echo "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})" |
| fi |
| echo "{" |
| echo " if (gdbarch->${function} == 0)" |
| echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| echo " if (gdbarch_debug >= 2)" |
| echo " /* FIXME: gdb_std??? */" |
| echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| test "${actual}" = "-" && actual="" |
| if [ "${returntype}" = "void" ] |
| then |
| echo " gdbarch->${function} (${actual});" |
| else |
| echo " return gdbarch->${function} (${actual});" |
| fi |
| echo "}" |
| echo "" |
| echo "void" |
| echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| echo " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})" |
| echo "{" |
| echo " gdbarch->${function} = ${function};" |
| echo "}" |
| ;; |
| "v" ) |
| echo "" |
| echo "${returntype}" |
| echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| echo "{" |
| if [ "${init_p}" ] |
| then |
| echo " if (${init_p})" |
| echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| elif [ "${init}" ] |
| then |
| echo " if (gdbarch->${function} == ${init})" |
| echo " internal_error (\"gdbarch: gdbarch_${function} invalid\");" |
| fi |
| echo " if (gdbarch_debug >= 2)" |
| echo " /* FIXME: gdb_std??? */" |
| echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| echo " return gdbarch->${function};" |
| echo "}" |
| echo "" |
| echo "void" |
| echo "set_gdbarch_${function} (struct gdbarch *gdbarch," |
| echo " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})" |
| echo "{" |
| echo " gdbarch->${function} = ${function};" |
| echo "}" |
| ;; |
| "i" ) |
| echo "" |
| echo "${returntype}" |
| echo "gdbarch_${function} (struct gdbarch *gdbarch)" |
| echo "{" |
| echo " if (gdbarch_debug >= 2)" |
| echo " /* FIXME: gdb_std??? */" |
| echo " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\n\");" |
| echo " return gdbarch->${function};" |
| echo "}" |
| ;; |
| esac |
| done |
| |
| # All the trailing guff |
| cat <<EOF |
| |
| |
| /* Keep a registrary of per-architecture data-pointers required by GDB |
| modules. */ |
| |
| struct gdbarch_data |
| { |
| int index; |
| }; |
| |
| struct gdbarch_data_registration |
| { |
| gdbarch_data_ftype *init; |
| struct gdbarch_data *data; |
| struct gdbarch_data_registration *next; |
| }; |
| |
| struct gdbarch_data_registrary |
| { |
| int nr; |
| struct gdbarch_data_registration *registrations; |
| }; |
| |
| struct gdbarch_data_registrary gdbarch_data_registrary = |
| { |
| 0, NULL, |
| }; |
| |
| struct gdbarch_data * |
| register_gdbarch_data (gdbarch_data_ftype *init) |
| { |
| struct gdbarch_data_registration **curr; |
| for (curr = &gdbarch_data_registrary.registrations; |
| (*curr) != NULL; |
| curr = &(*curr)->next); |
| (*curr) = XMALLOC (struct gdbarch_data_registration); |
| (*curr)->next = NULL; |
| (*curr)->init = init; |
| (*curr)->data = XMALLOC (struct gdbarch_data); |
| (*curr)->data->index = gdbarch_data_registrary.nr++; |
| 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; |
| gdbarch->nr_data = gdbarch_data_registrary.nr + 1; |
| gdbarch->data = xmalloc (sizeof (void*) * gdbarch->nr_data); |
| for (rego = gdbarch_data_registrary.registrations; |
| rego != NULL; |
| rego = rego->next) |
| { |
| if (rego->data->index < gdbarch->nr_data) |
| gdbarch->data[rego->data->index] = rego->init (); |
| } |
| } |
| |
| |
| /* Return the current value of the specified per-architecture |
| data-pointer. */ |
| |
| void * |
| gdbarch_data (data) |
| struct gdbarch_data *data; |
| { |
| if (data->index >= current_gdbarch->nr_data) |
| internal_error ("gdbarch_data: request for non-existant data."); |
| return current_gdbarch->data[data->index]; |
| } |
| |
| |
| |
| /* Keep a registrary of swaped 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_registrary |
| { |
| int nr; |
| struct gdbarch_swap_registration *registrations; |
| }; |
| |
| struct gdbarch_swap_registrary gdbarch_swap_registrary = |
| { |
| 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_registrary.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_registrary.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 registrary of the architectures known by GDB. */ |
| |
| struct gdbarch_init_registration |
| { |
| enum bfd_architecture bfd_architecture; |
| gdbarch_init_ftype *init; |
| struct gdbarch_list *arches; |
| struct gdbarch_init_registration *next; |
| }; |
| |
| static struct gdbarch_init_registration *gdbarch_init_registrary = NULL; |
| |
| void |
| register_gdbarch_init (enum bfd_architecture bfd_architecture, |
| gdbarch_init_ftype *init) |
| { |
| struct gdbarch_init_registration **curr; |
| const struct bfd_arch_info *bfd_arch_info; |
| /* Check that BFD reconizes this architecture */ |
| bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); |
| if (bfd_arch_info == NULL) |
| { |
| internal_error ("gdbarch: Attempt to register unknown architecture (%d)", bfd_architecture); |
| } |
| /* Check that we haven't seen this architecture before */ |
| for (curr = &gdbarch_init_registrary; |
| (*curr) != NULL; |
| curr = &(*curr)->next) |
| { |
| if (bfd_architecture == (*curr)->bfd_architecture) |
| internal_error ("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_init_registration); |
| (*curr)->bfd_architecture = bfd_architecture; |
| (*curr)->init = init; |
| (*curr)->arches = NULL; |
| (*curr)->next = 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 (struct gdbarch_info info) |
| { |
| struct gdbarch *new_gdbarch; |
| struct gdbarch_list **list; |
| struct gdbarch_init_registration *rego; |
| |
| /* Fill in any missing bits. Most important is the bfd_architecture |
| which is used to select the target architecture. */ |
| if (info.bfd_architecture == bfd_arch_unknown) |
| { |
| if (info.bfd_arch_info != NULL) |
| info.bfd_architecture = info.bfd_arch_info->arch; |
| else if (info.abfd != NULL) |
| info.bfd_architecture = bfd_get_arch (info.abfd); |
| /* FIXME - should query BFD for its default architecture. */ |
| else |
| info.bfd_architecture = current_gdbarch->bfd_arch_info->arch; |
| } |
| if (info.bfd_arch_info == NULL) |
| { |
| if (target_architecture_auto && info.abfd != NULL) |
| info.bfd_arch_info = bfd_get_arch_info (info.abfd); |
| else |
| info.bfd_arch_info = current_gdbarch->bfd_arch_info; |
| } |
| if (info.byte_order == 0) |
| { |
| if (target_byte_order_auto && info.abfd != NULL) |
| info.byte_order = (bfd_big_endian (info.abfd) ? BIG_ENDIAN |
| : bfd_little_endian (info.abfd) ? LITTLE_ENDIAN |
| : 0); |
| else |
| info.byte_order = current_gdbarch->byte_order; |
| /* FIXME - should query BFD for its default byte-order. */ |
| } |
| /* A default for abfd? */ |
| |
| /* Find the target that knows about this architecture. */ |
| for (rego = gdbarch_init_registrary; |
| rego != NULL && rego->bfd_architecture != info.bfd_architecture; |
| rego = rego->next); |
| if (rego == NULL) |
| { |
| if (gdbarch_debug) |
| fprintf_unfiltered (gdb_stdlog, "gdbarch_update: No matching architecture\n"); |
| return 0; |
| } |
| |
| if (gdbarch_debug) |
| { |
| fprintf_unfiltered (gdb_stdlog, |
| "gdbarch_update: info.bfd_architecture %d (%s)\n", |
| info.bfd_architecture, |
| bfd_lookup_arch (info.bfd_architecture, 0)->printable_name); |
| 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 == BIG_ENDIAN ? "big" |
| : info.byte_order == LITTLE_ENDIAN ? "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); |
| } |
| |
| /* 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); |
| 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); |
| gdbarch_dump (); |
| } |
| |
| /* Check that the newly installed architecture is valid. */ |
| 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); |
| |
| return 1; |
| } |
| |
| |
| |
| /* Functions to manipulate the endianness of the target. */ |
| |
| #ifdef TARGET_BYTE_ORDER_SELECTABLE |
| /* compat - Catch old targets that expect a selectable byte-order to |
| default to BIG_ENDIAN */ |
| #ifndef TARGET_BYTE_ORDER_DEFAULT |
| #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN |
| #endif |
| #endif |
| #if !TARGET_BYTE_ORDER_SELECTABLE_P |
| #ifndef TARGET_BYTE_ORDER_DEFAULT |
| /* compat - Catch old non byte-order selectable targets that do not |
| define TARGET_BYTE_ORDER_DEFAULT and instead expect |
| TARGET_BYTE_ORDER to be used as the default. For targets that |
| defined neither TARGET_BYTE_ORDER nor TARGET_BYTE_ORDER_DEFAULT the |
| below will get a strange compiler warning. */ |
| #define TARGET_BYTE_ORDER_DEFAULT TARGET_BYTE_ORDER |
| #endif |
| #endif |
| #ifndef TARGET_BYTE_ORDER_DEFAULT |
| #define TARGET_BYTE_ORDER_DEFAULT BIG_ENDIAN /* arbitrary */ |
| #endif |
| int target_byte_order = TARGET_BYTE_ORDER_DEFAULT; |
| int target_byte_order_auto = 1; |
| |
| /* Chain containing the \"set endian\" commands. */ |
| static struct cmd_list_element *endianlist = NULL; |
| |
| /* Called by \`\`show endian''. */ |
| static void |
| show_endian (char *args, int from_tty) |
| { |
| char *msg = |
| (TARGET_BYTE_ORDER_AUTO |
| ? "The target endianness is set automatically (currently %s endian)\n" |
| : "The target is assumed to be %s endian\n"); |
| printf_unfiltered (msg, (TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little")); |
| } |
| |
| /* Called if the user enters \`\`set endian'' without an argument. */ |
| static void |
| set_endian (char *args, int from_tty) |
| { |
| printf_unfiltered ("\"set endian\" must be followed by \"auto\", \"big\" or \"little\".\n"); |
| show_endian (args, from_tty); |
| } |
| |
| /* Called by \`\`set endian big''. */ |
| static void |
| set_endian_big (char *args, int from_tty) |
| { |
| if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| { |
| target_byte_order = BIG_ENDIAN; |
| target_byte_order_auto = 0; |
| if (GDB_MULTI_ARCH) |
| { |
| struct gdbarch_info info; |
| memset (&info, 0, sizeof info); |
| info.byte_order = BIG_ENDIAN; |
| gdbarch_update (info); |
| } |
| } |
| else |
| { |
| printf_unfiltered ("Byte order is not selectable."); |
| show_endian (args, from_tty); |
| } |
| } |
| |
| /* Called by \`\`set endian little''. */ |
| static void |
| set_endian_little (char *args, int from_tty) |
| { |
| if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| { |
| target_byte_order = LITTLE_ENDIAN; |
| target_byte_order_auto = 0; |
| if (GDB_MULTI_ARCH) |
| { |
| struct gdbarch_info info; |
| memset (&info, 0, sizeof info); |
| info.byte_order = LITTLE_ENDIAN; |
| gdbarch_update (info); |
| } |
| } |
| else |
| { |
| printf_unfiltered ("Byte order is not selectable."); |
| show_endian (args, from_tty); |
| } |
| } |
| |
| /* Called by \`\`set endian auto''. */ |
| static void |
| set_endian_auto (char *args, int from_tty) |
| { |
| if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| { |
| target_byte_order_auto = 1; |
| } |
| else |
| { |
| printf_unfiltered ("Byte order is not selectable."); |
| show_endian (args, from_tty); |
| } |
| } |
| |
| /* Set the endianness from a BFD. */ |
| static void |
| set_endian_from_file (bfd *abfd) |
| { |
| if (TARGET_BYTE_ORDER_SELECTABLE_P) |
| { |
| int want; |
| |
| if (bfd_big_endian (abfd)) |
| want = BIG_ENDIAN; |
| else |
| want = LITTLE_ENDIAN; |
| if (TARGET_BYTE_ORDER_AUTO) |
| target_byte_order = want; |
| else if (TARGET_BYTE_ORDER != want) |
| warning ("%s endian file does not match %s endian target.", |
| want == BIG_ENDIAN ? "big" : "little", |
| TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| } |
| else |
| { |
| if (bfd_big_endian (abfd) |
| ? TARGET_BYTE_ORDER != BIG_ENDIAN |
| : TARGET_BYTE_ORDER == BIG_ENDIAN) |
| warning ("%s endian file does not match %s endian target.", |
| bfd_big_endian (abfd) ? "big" : "little", |
| TARGET_BYTE_ORDER == BIG_ENDIAN ? "big" : "little"); |
| } |
| } |
| |
| |
| |
| /* Functions to manipulate the architecture of the target */ |
| |
| enum set_arch { set_arch_auto, set_arch_manual }; |
| |
| int target_architecture_auto = 1; |
| extern const struct bfd_arch_info bfd_default_arch_struct; |
| const struct bfd_arch_info *target_architecture = &bfd_default_arch_struct; |
| int (*target_architecture_hook) (const struct bfd_arch_info *ap); |
| |
| static void show_endian (char *, int); |
| static void set_endian (char *, int); |
| static void set_endian_big (char *, int); |
| static void set_endian_little (char *, int); |
| static void set_endian_auto (char *, int); |
| static void set_endian_from_file (bfd *); |
| static int arch_ok (const struct bfd_arch_info *arch); |
| static void set_arch (const struct bfd_arch_info *arch, enum set_arch type); |
| static void show_architecture (char *, int); |
| static void set_architecture (char *, int); |
| static void info_architecture (char *, int); |
| static void set_architecture_from_file (bfd *); |
| |
| /* Do the real work of changing the current architecture */ |
| |
| static int |
| arch_ok (const struct bfd_arch_info *arch) |
| { |
| /* Should be performing the more basic check that the binary is |
| compatible with GDB. */ |
| /* Check with the target that the architecture is valid. */ |
| return (target_architecture_hook == NULL |
| || target_architecture_hook (arch)); |
| } |
| |
| static void |
| set_arch (const struct bfd_arch_info *arch, |
| enum set_arch type) |
| { |
| switch (type) |
| { |
| case set_arch_auto: |
| if (!arch_ok (arch)) |
| warning ("Target may not support %s architecture", |
| arch->printable_name); |
| target_architecture = arch; |
| break; |
| case set_arch_manual: |
| if (!arch_ok (arch)) |
| { |
| printf_unfiltered ("Target does not support \`%s' architecture.\n", |
| arch->printable_name); |
| } |
| else |
| { |
| target_architecture_auto = 0; |
| target_architecture = arch; |
| } |
| break; |
| } |
| if (gdbarch_debug) |
| gdbarch_dump (); |
| } |
| |
| /* Called if the user enters \`\`show architecture'' without an argument. */ |
| static void |
| show_architecture (char *args, int from_tty) |
| { |
| const char *arch; |
| arch = TARGET_ARCHITECTURE->printable_name; |
| if (target_architecture_auto) |
| printf_filtered ("The target architecture is set automatically (currently %s)\n", arch); |
| else |
| printf_filtered ("The target architecture is assumed to be %s\n", arch); |
| } |
| |
| /* Called if the user enters \`\`set architecture'' with or without an |
| argument. */ |
| static void |
| set_architecture (char *args, int from_tty) |
| { |
| if (args == NULL) |
| { |
| printf_unfiltered ("\"set architecture\" must be followed by \"auto\" or an architecture name.\n"); |
| } |
| else if (strcmp (args, "auto") == 0) |
| { |
| target_architecture_auto = 1; |
| } |
| else if (GDB_MULTI_ARCH) |
| { |
| const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| if (arch == NULL) |
| printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| else |
| { |
| struct gdbarch_info info; |
| memset (&info, 0, sizeof info); |
| info.bfd_arch_info = arch; |
| if (gdbarch_update (info)) |
| target_architecture_auto = 0; |
| else |
| printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| } |
| } |
| else |
| { |
| const struct bfd_arch_info *arch = bfd_scan_arch (args); |
| if (arch != NULL) |
| set_arch (arch, set_arch_manual); |
| else |
| printf_unfiltered ("Architecture \`%s' not reconized.\n", args); |
| } |
| } |
| |
| /* Called if the user enters \`\`info architecture'' without an argument. */ |
| static void |
| info_architecture (char *args, int from_tty) |
| { |
| enum bfd_architecture a; |
| if (GDB_MULTI_ARCH) |
| { |
| if (gdbarch_init_registrary != NULL) |
| { |
| struct gdbarch_init_registration *rego; |
| printf_filtered ("Available architectures are:\n"); |
| for (rego = gdbarch_init_registrary; |
| rego != NULL; |
| rego = rego->next) |
| { |
| const struct bfd_arch_info *ap; |
| ap = bfd_lookup_arch (rego->bfd_architecture, 0); |
| if (ap != NULL) |
| { |
| do |
| { |
| printf_filtered (" %s", ap->printable_name); |
| ap = ap->next; |
| } |
| while (ap != NULL); |
| printf_filtered ("\n"); |
| } |
| } |
| } |
| else |
| { |
| printf_filtered ("There are no available architectures.\n"); |
| } |
| return; |
| } |
| printf_filtered ("Available architectures are:\n"); |
| for (a = bfd_arch_obscure + 1; a < bfd_arch_last; a++) |
| { |
| const struct bfd_arch_info *ap = bfd_lookup_arch (a, 0); |
| if (ap != NULL) |
| { |
| do |
| { |
| printf_filtered (" %s", ap->printable_name); |
| ap = ap->next; |
| } |
| while (ap != NULL); |
| printf_filtered ("\n"); |
| } |
| } |
| } |
| |
| /* Set the architecture from arch/machine */ |
| void |
| set_architecture_from_arch_mach (arch, mach) |
| enum bfd_architecture arch; |
| unsigned long mach; |
| { |
| const struct bfd_arch_info *wanted = bfd_lookup_arch (arch, mach); |
| if (wanted != NULL) |
| set_arch (wanted, set_arch_manual); |
| else |
| internal_error ("gdbarch: hardwired architecture/machine not reconized"); |
| } |
| |
| /* Set the architecture from a BFD */ |
| static void |
| set_architecture_from_file (bfd *abfd) |
| { |
| const struct bfd_arch_info *wanted = bfd_get_arch_info (abfd); |
| if (target_architecture_auto) |
| { |
| set_arch (wanted, set_arch_auto); |
| } |
| else if (wanted != target_architecture) |
| { |
| warning ("%s architecture file may be incompatible with %s target.", |
| wanted->printable_name, |
| target_architecture->printable_name); |
| } |
| } |
| |
| |
| /* Misc helper functions for targets. */ |
| |
| int |
| frame_num_args_unknown (fi) |
| struct frame_info *fi; |
| { |
| return -1; |
| } |
| |
| |
| int |
| generic_register_convertible_not (num) |
| int num; |
| { |
| return 0; |
| } |
| |
| /* Disassembler */ |
| |
| /* Pointer to the target-dependent disassembly function. */ |
| int (*tm_print_insn) (bfd_vma, disassemble_info *); |
| disassemble_info tm_print_insn_info; |
| |
| |
| |
| /* Set the dynamic target-system-dependant parameters (architecture, |
| byte-order) using information found in the BFD */ |
| |
| void |
| set_gdbarch_from_file (abfd) |
| bfd *abfd; |
| { |
| if (GDB_MULTI_ARCH) |
| { |
| struct gdbarch_info info; |
| memset (&info, 0, sizeof info); |
| info.abfd = abfd; |
| gdbarch_update (info); |
| return; |
| } |
| set_architecture_from_file (abfd); |
| set_endian_from_file (abfd); |
| } |
| |
| |
| #if defined (CALL_DUMMY) |
| /* FIXME - this should go away */ |
| LONGEST call_dummy_words[] = CALL_DUMMY; |
| int sizeof_call_dummy_words = sizeof (call_dummy_words); |
| #endif |
| |
| |
| extern void _initialize_gdbarch (void); |
| void |
| _initialize_gdbarch () |
| { |
| add_prefix_cmd ("endian", class_support, set_endian, |
| "Set endianness of target.", |
| &endianlist, "set endian ", 0, &setlist); |
| add_cmd ("big", class_support, set_endian_big, |
| "Set target as being big endian.", &endianlist); |
| add_cmd ("little", class_support, set_endian_little, |
| "Set target as being little endian.", &endianlist); |
| add_cmd ("auto", class_support, set_endian_auto, |
| "Select target endianness automatically.", &endianlist); |
| add_cmd ("endian", class_support, show_endian, |
| "Show endianness of target.", &showlist); |
| |
| add_cmd ("architecture", class_support, set_architecture, |
| "Set architecture of target.", &setlist); |
| add_alias_cmd ("processor", "architecture", class_support, 1, &setlist); |
| add_cmd ("architecture", class_support, show_architecture, |
| "Show architecture of target.", &showlist); |
| add_cmd ("architecture", class_support, info_architecture, |
| "List supported target architectures", &infolist); |
| |
| 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 ("archdebug", |
| class_maintenance, |
| var_zinteger, |
| (char *)&gdbarch_debug, |
| "Set architecture debugging.\n\\ |
| When non-zero, architecture debugging is enabled.", &setlist), |
| &showlist); |
| } |
| EOF |
| |
| # close things off |
| exec 1>&2 |
| #../move-if-change new-gdbarch.c gdbarch.c |
| if ! test -r gdbarch.c |
| then |
| echo "gdbarch.c missing? cp new-gdbarch.c gdbarch.c" 1>&2 |
| elif diff -c gdbarch.c new-gdbarch.c |
| then |
| echo "gdbarch.c unchanged" 1>&2 |
| else |
| echo "gdbarch.c has changed? cp new-gdbarch.c gdbarch.c" 1>&2 |
| fi |