gdb/gdbarch.sh - gdb
Functions defined
Source code
- LANG=C ; export LANG
- LC_ALL=C ; export LC_ALL
- compare_new ()
- {
- file=$1
- if test ! -r ${file}
- then
- echo "${file} missing? cp new-${file} ${file}" 1>&2
- elif diff -u ${file} new-${file}
- then
- echo "${file} unchanged" 1>&2
- else
- echo "${file} has changed? cp new-${file} ${file}" 1>&2
- fi
- }
- read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol"
- do_read ()
- {
- comment=""
- class=""
-
-
-
- while IFS='' read line
- do
- if test "${line}" = ""
- then
- continue
- elif test "${line}" = "#" -a "${comment}" = ""
- then
- continue
- elif expr "${line}" : "#" > /dev/null
- then
- comment="${comment}
- ${line}"
- else
-
-
-
- line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
- OFS="${IFS}" ; IFS="[:]"
- eval read ${read} <<EOF
- ${line}
- EOF
- IFS="${OFS}"
- if test -n "${garbage_at_eol}"
- then
- echo "Garbage at end-of-line in ${line}" 1>&2
- kill $$
- exit 1
- fi
-
-
- for r in ${read}
- do
- if eval test \"\${${r}}\" = \"\ \"
- then
- eval ${r}=""
- fi
- done
- case "${class}" in
- m ) staticdefault="${predefault}" ;;
- M ) staticdefault="0" ;;
- * ) test "${staticdefault}" || staticdefault=0 ;;
- esac
- case "${class}" in
- F | V | M )
- case "${invalid_p}" in
- "" )
- if test -n "${predefault}"
- then
-
- predicate="gdbarch->${function} != ${predefault}"
- elif class_is_variable_p
- then
- predicate="gdbarch->${function} != 0"
- elif class_is_function_p
- then
- predicate="gdbarch->${function} != NULL"
- fi
- ;;
- * )
- echo "Predicate function ${function} with invalid_p." 1>&2
- kill $$
- exit 1
- ;;
- esac
- esac
-
-
-
-
-
-
- if [ -n "${postdefault}" ]
- then
- fallbackdefault="${postdefault}"
- elif [ -n "${predefault}" ]
- then
- fallbackdefault="${predefault}"
- else
- fallbackdefault="0"
- fi
-
-
- 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
- }
- for field in ${read}
- do
- case ${field} in
- class ) : ;;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- returntype ) : ;;
-
- function ) : ;;
-
-
-
- formal ) : ;;
-
-
-
-
- actual ) : ;;
-
-
-
- staticdefault ) : ;;
-
-
-
-
-
- predefault ) : ;;
-
-
-
-
-
-
-
-
-
-
-
-
- postdefault ) : ;;
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
- invalid_p ) : ;;
-
-
-
-
-
-
-
-
-
-
-
- print ) : ;;
-
-
-
-
- garbage_at_eol ) : ;;
-
- *)
- echo "Bad field ${field}"
- exit 1;;
- esac
- done
- function_list ()
- {
-
- cat <<EOF
- i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name
- #
- i:enum bfd_endian:byte_order:::BFD_ENDIAN_BIG
- i:enum bfd_endian:byte_order_for_code:::BFD_ENDIAN_BIG
- #
- i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN
- #
- i:const struct target_desc *:target_desc:::::::host_address_to_string (gdbarch->target_desc)
- # The bit byte-order has to do just with numbering of bits in debugging symbols
- # and such. Conceptually, it's quite separate from byte/word byte order.
- v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0
- # 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: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: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: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:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
- # Alignment of a long long or unsigned long long for the target
- # machine.
- v:int:long_long_align_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0
- # The ABI default bit-size and format for "half", "float", "double", and
- # "long double". These bit/format pairs should eventually be combined
- # into a single object. For the moment, just initialize them as a pair.
- # Each format describes both the big and little endian layouts (if
- # useful).
- v:int:half_bit:::16:2*TARGET_CHAR_BIT::0
- v:const struct floatformat **:half_format:::::floatformats_ieee_half::pformat (gdbarch->half_format)
- v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0
- v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format)
- v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0
- v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format)
- v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0
- v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format)
- # For most targets, a pointer on the target and its representation as an
- # address in GDB have the same size and "look the same". For such a
- # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
- # / addr_bit will be set from it.
- #
- # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
- # also need to set gdbarch_dwarf2_addr_size, gdbarch_pointer_to_address and
- # gdbarch_address_to_pointer as well.
- #
- # ptr_bit is the size of a pointer on the target
- v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0
- # addr_bit is the size of a target address as represented in gdb
- v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch):
- #
- # dwarf2_addr_size is the target address size as used in the Dwarf debug
- # info. For .debug_frame FDEs, this is supposed to be the target address
- # size from the associated CU header, and which is equivalent to the
- # DWARF2_ADDR_SIZE as defined by the target specific GCC back-end.
- # Unfortunately there is no good way to determine this value. Therefore
- # dwarf2_addr_size simply defaults to the target pointer size.
- #
- # dwarf2_addr_size is not used for .eh_frame FDEs, which are generally
- # defined using the target's pointer size so far.
- #
- # Note that dwarf2_addr_size only needs to be redefined by a target if the
- # GCC back-end defines a DWARF2_ADDR_SIZE other than the target pointer size,
- # and if Dwarf versions < 4 need to be supported.
- v:int:dwarf2_addr_size:::sizeof (void*):0:gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT:
- #
- # One if \`char' acts like \`signed char', zero if \`unsigned char'.
- v:int:char_signed:::1:-1:1
- #
- F:CORE_ADDR:read_pc:struct regcache *regcache:regcache
- F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val
- # 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.
- m: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:enum register_status:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf
- # Read a register into a new struct value. If the register is wholly
- # or partly unavailable, this should call mark_value_bytes_unavailable
- # as appropriate. If this is defined, then pseudo_register_read will
- # never be called.
- M:struct value *:pseudo_register_read_value:struct regcache *regcache, int cookednum:regcache, cookednum
- M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf
- #
- v:int:num_regs:::0:-1
- # This macro gives the number of pseudo-registers that live in the
- # register namespace but do not get fetched or stored on the target.
- # These pseudo-registers may be aliases for other registers,
- # combinations of other registers, or they may be computed by GDB.
- v:int:num_pseudo_regs:::0:0::0
- # Assemble agent expression bytecode to collect pseudo-register REG.
- # Return -1 if something goes wrong, 0 otherwise.
- M:int:ax_pseudo_register_collect:struct agent_expr *ax, int reg:ax, reg
- # Assemble agent expression bytecode to push the value of pseudo-register
- # REG on the interpreter stack.
- # Return -1 if something goes wrong, 0 otherwise.
- M:int:ax_pseudo_register_push_stack:struct agent_expr *ax, int reg:ax, reg
- # GDB's standard (or well known) register numbers. These can map onto
- # a real register or a pseudo (computed) register or not be defined at
- # all (-1).
- # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP.
- v:int:sp_regnum:::-1:-1::0
- v:int:pc_regnum:::-1:-1::0
- v:int:ps_regnum:::-1:-1::0
- v:int:fp0_regnum:::0:-1::0
- # Convert stab register number (from \`r\' declaration) to a gdb REGNUM.
- m: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.
- m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0
- # Convert from an sdb register number to an internal gdb register number.
- m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0
- # Provide a default mapping from a DWARF2 register number to a gdb REGNUM.
- m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0
- m:const char *:register_name:int regnr:regnr::0
- # Return the type of a register specified by the architecture. Only
- # the register cache should call this function directly; others should
- # use "register_type".
- M:struct type *:register_type:int reg_nr:reg_nr
- M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame
- # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete
- # deprecated_fp_regnum.
- v:int:deprecated_fp_regnum:::-1:-1::0
- M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr
- v:int:call_dummy_location::::AT_ENTRY_POINT::0
- M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache
- m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0
- m:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args::default_print_float_info::0
- M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args
- # MAP a GDB RAW register number onto a simulator register number. See
- # also include/...-sim.h.
- m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0
- m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0
- m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0
- # Determine the address where a longjmp will land and save this address
- # in PC. Return nonzero on success.
- #
- # FRAME corresponds to the longjmp frame.
- F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc
- #
- v:int:believe_pcc_promotion:::::::
- #
- m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0
- f:int:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf, int *optimizedp, int *unavailablep:frame, regnum, type, buf, optimizedp, unavailablep:0
- f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0
- # Construct a value representing the contents of register REGNUM in
- # frame FRAME_ID, interpreted as type TYPE. The routine needs to
- # allocate and return a struct value with all value attributes
- # (but not the value contents) filled in.
- m:struct value *:value_from_register:struct type *type, int regnum, struct frame_id frame_id:type, regnum, frame_id::default_value_from_register::0
- #
- m:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0
- m:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0
- M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf
- # Return the return-value convention that will be used by FUNCTION
- # to return a value of type VALTYPE. FUNCTION may be NULL in which
- # case the return convention is computed based only on VALTYPE.
- #
- # If READBUF is not NULL, extract the return value and save it in this buffer.
- #
- # If WRITEBUF is not NULL, it contains a return value which will be
- # stored into the appropriate register. This can be used when we want
- # to force the value returned by a function (see the "return" command
- # for instance).
- M:enum return_value_convention:return_value:struct value *function, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:function, valtype, regcache, readbuf, writebuf
- # Return true if the return value of function is stored in the first hidden
- # parameter. In theory, this feature should be language-dependent, specified
- # by language and its ABI, such as C++. Unfortunately, compiler may
- # implement it to a target-dependent feature. So that we need such hook here
- # to be aware of this in GDB.
- m:int:return_in_first_hidden_param_p:struct type *type:type::default_return_in_first_hidden_param_p::0
- m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0
- M:CORE_ADDR:skip_main_prologue:CORE_ADDR ip:ip
- # On some platforms, a single function may provide multiple entry points,
- # e.g. one that is used for function-pointer calls and a different one
- # that is used for direct function calls.
- # In order to ensure that breakpoints set on the function will trigger
- # no matter via which entry point the function is entered, a platform
- # may provide the skip_entrypoint callback. It is called with IP set
- # to the main entry point of a function (as determined by the symbol table),
- # and should return the address of the innermost entry point, where the
- # actual breakpoint needs to be set. Note that skip_entrypoint is used
- # by GDB common code even when debugging optimized code, where skip_prologue
- # is not used.
- M:CORE_ADDR:skip_entrypoint:CORE_ADDR ip:ip
- f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0
- m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0:
- # Return the adjusted address and kind to use for Z0/Z1 packets.
- # KIND is usually the memory length of the breakpoint, but may have a
- # different target-specific meaning.
- m:void:remote_breakpoint_from_pc:CORE_ADDR *pcptr, int *kindptr:pcptr, kindptr:0:default_remote_breakpoint_from_pc::0
- M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr
- m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0
- m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0
- v:CORE_ADDR:decr_pc_after_break:::0:::0
- # A function can be addressed by either it's "pointer" (possibly a
- # descriptor address) or "entry point" (first executable instruction).
- # The method "convert_from_func_ptr_addr" converting the former to the
- # latter. gdbarch_deprecated_function_start_offset is being used to implement
- # a simplified subset of that functionality - the function's address
- # corresponds to the "function pointer" and the function's start
- # corresponds to the "function entry point" - and hence is redundant.
- v:CORE_ADDR:deprecated_function_start_offset:::0:::0
- # Return the remote protocol register number associated with this
- # register. Normally the identity mapping.
- m:int:remote_register_number:int regno:regno::default_remote_register_number::0
- # Fetch the target specific address used to represent a load module.
- F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile
- #
- v:CORE_ADDR:frame_args_skip:::0:::0
- M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame
- M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame
- # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
- # frame-base. Enable frame-base before frame-unwind.
- F:int:frame_num_args:struct frame_info *frame:frame
- #
- M:CORE_ADDR:frame_align:CORE_ADDR address:address
- m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0
- v:int:frame_red_zone_size
- #
- m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0
- # On some machines there are bits in addresses which are not really
- # part of the address, but are used by the kernel, the hardware, etc.
- # for special purposes. gdbarch_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).
- m:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0
- # FIXME/cagney/2001-01-18: This should be split in two. A target method that
- # indicates if the target needs software single step. An ISA method to
- # implement it.
- #
- # FIXME/cagney/2001-01-18: This should be replaced with something that inserts
- # breakpoints using the breakpoint system instead of blatting memory directly
- # (as with rs6000).
- #
- # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the
- # target can single step. If not, then implement single step using breakpoints.
- #
- # A return value of 1 means that the software_single_step breakpoints
- # were inserted; 0 means they were not.
- F:int:software_single_step:struct frame_info *frame:frame
- # Return non-zero if the processor is executing a delay slot and a
- # further single-step is needed before the instruction finishes.
- M:int:single_step_through_delay:struct frame_info *frame:frame
- # FIXME: cagney/2003-08-28: Need to find a better way of selecting the
- # disassembler. Perhaps objdump can handle it?
- f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0:
- f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0
- # If in_solib_dynsym_resolve_code() returns true, and SKIP_SOLIB_RESOLVER
- # evaluates non-zero, this is the address where the debugger will place
- # a step-resume breakpoint to get us past the dynamic linker.
- m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0
- # Some systems also have trampoline code for returning from shared libs.
- m:int:in_solib_return_trampoline:CORE_ADDR pc, const char *name:pc, name::generic_in_solib_return_trampoline::0
- # A target might have problems with watchpoints as soon as the stack
- # frame of the current function has been destroyed. This mostly happens
- # as the first action in a funtion's epilogue. in_function_epilogue_p()
- # is defined to return a non-zero value if either the given addr is one
- # instruction after the stack destroying instruction up to the trailing
- # return instruction or if we can figure out that the stack frame has
- # already been invalidated regardless of the value of addr. Targets
- # which don't suffer from that problem could just let this functionality
- # untouched.
- m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0
- # Process an ELF symbol in the minimal symbol table in a backend-specific
- # way. Normally this hook is supposed to do nothing, however if required,
- # then this hook can be used to apply tranformations to symbols that are
- # considered special in some way. For example the MIPS backend uses it
- # to interpret \`st_other' information to mark compressed code symbols so
- # that they can be treated in the appropriate manner in the processing of
- # the main symbol table and DWARF-2 records.
- F:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym
- f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0
- # Process a symbol in the main symbol table in a backend-specific way.
- # Normally this hook is supposed to do nothing, however if required,
- # then this hook can be used to apply tranformations to symbols that
- # are considered special in some way. This is currently used by the
- # MIPS backend to make sure compressed code symbols have the ISA bit
- # set. This in turn is needed for symbol values seen in GDB to match
- # the values used at the runtime by the program itself, for function
- # and label references.
- f:void:make_symbol_special:struct symbol *sym, struct objfile *objfile:sym, objfile::default_make_symbol_special::0
- # Adjust the address retrieved from a DWARF-2 record other than a line
- # entry in a backend-specific way. Normally this hook is supposed to
- # return the address passed unchanged, however if that is incorrect for
- # any reason, then this hook can be used to fix the address up in the
- # required manner. This is currently used by the MIPS backend to make
- # sure addresses in FDE, range records, etc. referring to compressed
- # code have the ISA bit set, matching line information and the symbol
- # table.
- f:CORE_ADDR:adjust_dwarf2_addr:CORE_ADDR pc:pc::default_adjust_dwarf2_addr::0
- # Adjust the address updated by a line entry in a backend-specific way.
- # Normally this hook is supposed to return the address passed unchanged,
- # however in the case of inconsistencies in these records, this hook can
- # be used to fix them up in the required manner. This is currently used
- # by the MIPS backend to make sure all line addresses in compressed code
- # are presented with the ISA bit set, which is not always the case. This
- # in turn ensures breakpoint addresses are correctly matched against the
- # stop PC.
- f:CORE_ADDR:adjust_dwarf2_line:CORE_ADDR addr, int rel:addr, rel::default_adjust_dwarf2_line::0
- v:int:cannot_step_breakpoint:::0:0::0
- v:int:have_nonsteppable_watchpoint:::0:0::0
- F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class
- M:const char *:address_class_type_flags_to_name:int type_flags:type_flags
- # Return the appropriate type_flags for the supplied address class.
- # This function should return 1 if the address class was recognized and
- # type_flags was set, zero otherwise.
- M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr
- # Is a register in a group
- m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0
- # Fetch the pointer to the ith function argument.
- F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type
- # Iterate over all supported register notes in a core file. For each
- # supported register note section, the iterator must call CB and pass
- # CB_DATA unchanged. If REGCACHE is not NULL, the iterator can limit
- # the supported register note sections based on the current register
- # values. Otherwise it should enumerate all supported register note
- # sections.
- M:void:iterate_over_regset_sections:iterate_over_regset_sections_cb *cb, void *cb_data, const struct regcache *regcache:cb, cb_data, regcache
- # Create core file notes
- M:char *:make_corefile_notes:bfd *obfd, int *note_size:obfd, note_size
- # The elfcore writer hook to use to write Linux prpsinfo notes to core
- # files. Most Linux architectures use the same prpsinfo32 or
- # prpsinfo64 layouts, and so won't need to provide this hook, as we
- # call the Linux generic routines in bfd to write prpsinfo notes by
- # default.
- F:char *:elfcore_write_linux_prpsinfo:bfd *obfd, char *note_data, int *note_size, const struct elf_internal_linux_prpsinfo *info:obfd, note_data, note_size, info
- # Find core file memory regions
- M:int:find_memory_regions:find_memory_region_ftype func, void *data:func, data
- # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
- # core file into buffer READBUF with length LEN. Return the number of bytes read
- # (zero indicates failure).
- # failed, otherwise, return the red length of READBUF.
- M:ULONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
- # Read offset OFFSET of TARGET_OBJECT_LIBRARIES_AIX formatted shared
- # libraries list from core file into buffer READBUF with length LEN.
- # Return the number of bytes read (zero indicates failure).
- M:ULONGEST:core_xfer_shared_libraries_aix:gdb_byte *readbuf, ULONGEST offset, ULONGEST len:readbuf, offset, len
- # How the core target converts a PTID from a core file to a string.
- M:char *:core_pid_to_str:ptid_t ptid:ptid
- # BFD target to use when generating a core file.
- V:const char *:gcore_bfd_target:::0:0:::pstring (gdbarch->gcore_bfd_target)
- # If the elements of C++ vtables are in-place function descriptors rather
- # than normal function pointers (which may point to code or a descriptor),
- # set this to one.
- v:int:vtable_function_descriptors:::0:0::0
- # Set if the least significant bit of the delta is used instead of the least
- # significant bit of the pfn for pointers to virtual member functions.
- v:int:vbit_in_delta:::0:0::0
- # Advance PC to next instruction in order to skip a permanent breakpoint.
- f:void:skip_permanent_breakpoint:struct regcache *regcache:regcache:default_skip_permanent_breakpoint:default_skip_permanent_breakpoint::0
- # The maximum length of an instruction on this architecture in bytes.
- V:ULONGEST:max_insn_length:::0:0
- # Copy the instruction at FROM to TO, and make any adjustments
- # necessary to single-step it at that address.
- #
- # REGS holds the state the thread's registers will have before
- # executing the copied instruction; the PC in REGS will refer to FROM,
- # not the copy at TO. The caller should update it to point at TO later.
- #
- # Return a pointer to data of the architecture's choice to be passed
- # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that
- # the instruction's effects have been completely simulated, with the
- # resulting state written back to REGS.
- #
- # For a general explanation of displaced stepping and how GDB uses it,
- # see the comments in infrun.c.
- #
- # The TO area is only guaranteed to have space for
- # gdbarch_max_insn_length (arch) bytes, so this function must not
- # write more bytes than that to that area.
- #
- # If you do not provide this function, GDB assumes that the
- # architecture does not support displaced stepping.
- #
- # If your architecture doesn't need to adjust instructions before
- # single-stepping them, consider using simple_displaced_step_copy_insn
- # here.
- M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs
- # Return true if GDB should use hardware single-stepping to execute
- # the displaced instruction identified by CLOSURE. If false,
- # GDB will simply restart execution at the displaced instruction
- # location, and it is up to the target to ensure GDB will receive
- # control again (e.g. by placing a software breakpoint instruction
- # into the displaced instruction buffer).
- #
- # The default implementation returns false on all targets that
- # provide a gdbarch_software_single_step routine, and true otherwise.
- m:int:displaced_step_hw_singlestep:struct displaced_step_closure *closure:closure::default_displaced_step_hw_singlestep::0
- # Fix up the state resulting from successfully single-stepping a
- # displaced instruction, to give the result we would have gotten from
- # stepping the instruction in its original location.
- #
- # REGS is the register state resulting from single-stepping the
- # displaced instruction.
- #
- # CLOSURE is the result from the matching call to
- # gdbarch_displaced_step_copy_insn.
- #
- # If you provide gdbarch_displaced_step_copy_insn.but not this
- # function, then GDB assumes that no fixup is needed after
- # single-stepping the instruction.
- #
- # For a general explanation of displaced stepping and how GDB uses it,
- # see the comments in infrun.c.
- M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL
- # Free a closure returned by gdbarch_displaced_step_copy_insn.
- #
- # If you provide gdbarch_displaced_step_copy_insn, you must provide
- # this function as well.
- #
- # If your architecture uses closures that don't need to be freed, then
- # you can use simple_displaced_step_free_closure here.
- #
- # For a general explanation of displaced stepping and how GDB uses it,
- # see the comments in infrun.c.
- m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn)
- # Return the address of an appropriate place to put displaced
- # instructions while we step over them. There need only be one such
- # place, since we're only stepping one thread over a breakpoint at a
- # time.
- #
- # For a general explanation of displaced stepping and how GDB uses it,
- # see the comments in infrun.c.
- m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn)
- # Relocate an instruction to execute at a different address. OLDLOC
- # is the address in the inferior memory where the instruction to
- # relocate is currently at. On input, TO points to the destination
- # where we want the instruction to be copied (and possibly adjusted)
- # to. On output, it points to one past the end of the resulting
- # instruction(s). The effect of executing the instruction at TO shall
- # be the same as if executing it at FROM. For example, call
- # instructions that implicitly push the return address on the stack
- # should be adjusted to return to the instruction after OLDLOC;
- # relative branches, and other PC-relative instructions need the
- # offset adjusted; etc.
- M:void:relocate_instruction:CORE_ADDR *to, CORE_ADDR from:to, from::NULL
- # Refresh overlay mapped state for section OSECT.
- F:void:overlay_update:struct obj_section *osect:osect
- M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd
- # Handle special encoding of static variables in stabs debug info.
- F:const char *:static_transform_name:const char *name:name
- # Set if the address in N_SO or N_FUN stabs may be zero.
- v:int:sofun_address_maybe_missing:::0:0::0
- # Parse the instruction at ADDR storing in the record execution log
- # the registers REGCACHE and memory ranges that will be affected when
- # the instruction executes, along with their current values.
- # Return -1 if something goes wrong, 0 otherwise.
- M:int:process_record:struct regcache *regcache, CORE_ADDR addr:regcache, addr
- # Save process state after a signal.
- # Return -1 if something goes wrong, 0 otherwise.
- M:int:process_record_signal:struct regcache *regcache, enum gdb_signal signal:regcache, signal
- # Signal translation: translate inferior's signal (target's) number
- # into GDB's representation. The implementation of this method must
- # be host independent. IOW, don't rely on symbols of the NAT_FILE
- # header (the nm-*.h files), the host <signal.h> header, or similar
- # headers. This is mainly used when cross-debugging core files ---
- # "Live" targets hide the translation behind the target interface
- # (target_wait, target_resume, etc.).
- M:enum gdb_signal:gdb_signal_from_target:int signo:signo
- # Signal translation: translate the GDB's internal signal number into
- # the inferior's signal (target's) representation. The implementation
- # of this method must be host independent. IOW, don't rely on symbols
- # of the NAT_FILE header (the nm-*.h files), the host <signal.h>
- # header, or similar headers.
- # Return the target signal number if found, or -1 if the GDB internal
- # signal number is invalid.
- M:int:gdb_signal_to_target:enum gdb_signal signal:signal
- # Extra signal info inspection.
- #
- # Return a type suitable to inspect extra signal information.
- M:struct type *:get_siginfo_type:void:
- # Record architecture-specific information from the symbol table.
- M:void:record_special_symbol:struct objfile *objfile, asymbol *sym:objfile, sym
- # Function for the 'catch syscall' feature.
- # Get architecture-specific system calls information from registers.
- M:LONGEST:get_syscall_number:ptid_t ptid:ptid
- # The filename of the XML syscall for this architecture.
- v:const char *:xml_syscall_file:::0:0::0:pstring (gdbarch->xml_syscall_file)
- # Information about system calls from this architecture
- v:struct syscalls_info *:syscalls_info:::0:0::0:host_address_to_string (gdbarch->syscalls_info)
- # SystemTap related fields and functions.
- # A NULL-terminated array of prefixes used to mark an integer constant
- # on the architecture's assembly.
- # For example, on x86 integer constants are written as:
- #
- # \$10 ;; integer constant 10
- #
- # in this case, this prefix would be the character \`\$\'.
- v:const char *const *:stap_integer_prefixes:::0:0::0:pstring_list (gdbarch->stap_integer_prefixes)
- # A NULL-terminated array of suffixes used to mark an integer constant
- # on the architecture's assembly.
- v:const char *const *:stap_integer_suffixes:::0:0::0:pstring_list (gdbarch->stap_integer_suffixes)
- # A NULL-terminated array of prefixes used to mark a register name on
- # the architecture's assembly.
- # For example, on x86 the register name is written as:
- #
- # \%eax ;; register eax
- #
- # in this case, this prefix would be the character \`\%\'.
- v:const char *const *:stap_register_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_prefixes)
- # A NULL-terminated array of suffixes used to mark a register name on
- # the architecture's assembly.
- v:const char *const *:stap_register_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_suffixes)
- # A NULL-terminated array of prefixes used to mark a register
- # indirection on the architecture's assembly.
- # For example, on x86 the register indirection is written as:
- #
- # \(\%eax\) ;; indirecting eax
- #
- # in this case, this prefix would be the charater \`\(\'.
- #
- # Please note that we use the indirection prefix also for register
- # displacement, e.g., \`4\(\%eax\)\' on x86.
- v:const char *const *:stap_register_indirection_prefixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_prefixes)
- # A NULL-terminated array of suffixes used to mark a register
- # indirection on the architecture's assembly.
- # For example, on x86 the register indirection is written as:
- #
- # \(\%eax\) ;; indirecting eax
- #
- # in this case, this prefix would be the charater \`\)\'.
- #
- # Please note that we use the indirection suffix also for register
- # displacement, e.g., \`4\(\%eax\)\' on x86.
- v:const char *const *:stap_register_indirection_suffixes:::0:0::0:pstring_list (gdbarch->stap_register_indirection_suffixes)
- # Prefix(es) used to name a register using GDB's nomenclature.
- #
- # For example, on PPC a register is represented by a number in the assembly
- # language (e.g., \`10\' is the 10th general-purpose register). However,
- # inside GDB this same register has an \`r\' appended to its name, so the 10th
- # register would be represented as \`r10\' internally.
- v:const char *:stap_gdb_register_prefix:::0:0::0:pstring (gdbarch->stap_gdb_register_prefix)
- # Suffix used to name a register using GDB's nomenclature.
- v:const char *:stap_gdb_register_suffix:::0:0::0:pstring (gdbarch->stap_gdb_register_suffix)
- # Check if S is a single operand.
- #
- # Single operands can be:
- # \- Literal integers, e.g. \`\$10\' on x86
- # \- Register access, e.g. \`\%eax\' on x86
- # \- Register indirection, e.g. \`\(\%eax\)\' on x86
- # \- Register displacement, e.g. \`4\(\%eax\)\' on x86
- #
- # This function should check for these patterns on the string
- # and return 1 if some were found, or zero otherwise. Please try to match
- # as much info as you can from the string, i.e., if you have to match
- # something like \`\(\%\', do not match just the \`\(\'.
- M:int:stap_is_single_operand:const char *s:s
- # Function used to handle a "special case" in the parser.
- #
- # A "special case" is considered to be an unknown token, i.e., a token
- # that the parser does not know how to parse. A good example of special
- # case would be ARM's register displacement syntax:
- #
- # [R0, #4] ;; displacing R0 by 4
- #
- # Since the parser assumes that a register displacement is of the form:
- #
- # <number> <indirection_prefix> <register_name> <indirection_suffix>
- #
- # it means that it will not be able to recognize and parse this odd syntax.
- # Therefore, we should add a special case function that will handle this token.
- #
- # This function should generate the proper expression form of the expression
- # using GDB\'s internal expression mechanism (e.g., \`write_exp_elt_opcode\'
- # and so on). It should also return 1 if the parsing was successful, or zero
- # if the token was not recognized as a special token (in this case, returning
- # zero means that the special parser is deferring the parsing to the generic
- # parser), and should advance the buffer pointer (p->arg).
- M:int:stap_parse_special_token:struct stap_parse_info *p:p
- # True if the list of shared libraries is one and only for all
- # processes, as opposed to a list of shared libraries per inferior.
- # This usually means that all processes, although may or may not share
- # an address space, will see the same set of symbols at the same
- # addresses.
- v:int:has_global_solist:::0:0::0
- # On some targets, even though each inferior has its own private
- # address space, the debug interface takes care of making breakpoints
- # visible to all address spaces automatically. For such cases,
- # this property should be set to true.
- v:int:has_global_breakpoints:::0:0::0
- # True if inferiors share an address space (e.g., uClinux).
- m:int:has_shared_address_space:void:::default_has_shared_address_space::0
- # True if a fast tracepoint can be set at an address.
- m:int:fast_tracepoint_valid_at:CORE_ADDR addr, int *isize, char **msg:addr, isize, msg::default_fast_tracepoint_valid_at::0
- # Return the "auto" target charset.
- f:const char *:auto_charset:void::default_auto_charset:default_auto_charset::0
- # Return the "auto" target wide charset.
- f:const char *:auto_wide_charset:void::default_auto_wide_charset:default_auto_wide_charset::0
- # If non-empty, this is a file extension that will be opened in place
- # of the file extension reported by the shared library list.
- #
- # This is most useful for toolchains that use a post-linker tool,
- # where the names of the files run on the target differ in extension
- # compared to the names of the files GDB should load for debug info.
- v:const char *:solib_symbols_extension:::::::pstring (gdbarch->solib_symbols_extension)
- # If true, the target OS has DOS-based file system semantics. That
- # is, absolute paths include a drive name, and the backslash is
- # considered a directory separator.
- v:int:has_dos_based_file_system:::0:0::0
- # Generate bytecodes to collect the return address in a frame.
- # Since the bytecodes run on the target, possibly with GDB not even
- # connected, the full unwinding machinery is not available, and
- # typically this function will issue bytecodes for one or more likely
- # places that the return address may be found.
- m:void:gen_return_address:struct agent_expr *ax, struct axs_value *value, CORE_ADDR scope:ax, value, scope::default_gen_return_address::0
- # Implement the "info proc" command.
- M:void:info_proc:const char *args, enum info_proc_what what:args, what
- # Implement the "info proc" command for core files. Noe that there
- # are two "info_proc"-like methods on gdbarch -- one for core files,
- # one for live targets.
- M:void:core_info_proc:const char *args, enum info_proc_what what:args, what
- # Iterate over all objfiles in the order that makes the most sense
- # for the architecture to make global symbol searches.
- #
- # CB is a callback function where OBJFILE is the objfile to be searched,
- # and CB_DATA a pointer to user-defined data (the same data that is passed
- # when calling this gdbarch method). The iteration stops if this function
- # returns nonzero.
- #
- # CB_DATA is a pointer to some user-defined data to be passed to
- # the callback.
- #
- # If not NULL, CURRENT_OBJFILE corresponds to the objfile being
- # inspected when the symbol search was requested.
- m:void:iterate_over_objfiles_in_search_order:iterate_over_objfiles_in_search_order_cb_ftype *cb, void *cb_data, struct objfile *current_objfile:cb, cb_data, current_objfile:0:default_iterate_over_objfiles_in_search_order::0
- # Ravenscar arch-dependent ops.
- v:struct ravenscar_arch_ops *:ravenscar_ops:::NULL:NULL::0:host_address_to_string (gdbarch->ravenscar_ops)
- # Return non-zero if the instruction at ADDR is a call; zero otherwise.
- m:int:insn_is_call:CORE_ADDR addr:addr::default_insn_is_call::0
- # Return non-zero if the instruction at ADDR is a return; zero otherwise.
- m:int:insn_is_ret:CORE_ADDR addr:addr::default_insn_is_ret::0
- # Return non-zero if the instruction at ADDR is a jump; zero otherwise.
- m:int:insn_is_jump:CORE_ADDR addr:addr::default_insn_is_jump::0
- # Read one auxv entry from *READPTR, not reading locations >= ENDPTR.
- # Return 0 if *READPTR is already at the end of the buffer.
- # Return -1 if there is insufficient buffer for a whole entry.
- # Return 1 if an entry was read into *TYPEP and *VALP.
- M:int:auxv_parse:gdb_byte **readptr, gdb_byte *endptr, CORE_ADDR *typep, CORE_ADDR *valp:readptr, endptr, typep, valp
- # Find the address range of the current inferior's vsyscall/vDSO, and
- # write it to *RANGE. If the vsyscall's length can't be determined, a
- # range with zero length is returned. Returns true if the vsyscall is
- # found, false otherwise.
- m:int:vsyscall_range:struct mem_range *range:range::default_vsyscall_range::0
- # Allocate SIZE bytes of PROT protected page aligned memory in inferior.
- # PROT has GDB_MMAP_PROT_* bitmask format.
- # Throw an error if it is not possible. Returned address is always valid.
- f:CORE_ADDR:infcall_mmap:CORE_ADDR size, unsigned prot:size, prot::default_infcall_mmap::0
- # Return string (caller has to use xfree for it) with options for GCC
- # to produce code for this target, typically "-m64", "-m32" or "-m31".
- # These options are put before CU's DW_AT_producer compilation options so that
- # they can override it. Method may also return NULL.
- m:char *:gcc_target_options:void:::default_gcc_target_options::0
- # Return a regular expression that matches names used by this
- # architecture in GNU configury triplets. The result is statically
- # allocated and must not be freed. The default implementation simply
- # returns the BFD architecture name, which is correct in nearly every
- # case.
- m:const char *:gnu_triplet_regexp:void:::default_gnu_triplet_regexp::0
- EOF
- }
- exec > new-gdbarch.log
- function_list | while do_read
- do
- cat <<EOF
- ${class} ${returntype} ${function} ($formal)
- EOF
- for r in ${read}
- do
- eval echo \"\ \ \ \ ${r}=\${${r}}\"
- done
- if class_is_predicate_p && fallback_default_p
- then
- echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2
- kill $$
- exit 1
- fi
- if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ]
- then
- echo "Error: postdefault is useless when invalid_p=0" 1>&2
- kill $$
- exit 1
- fi
- if class_is_multiarch_p
- then
- if class_is_predicate_p ; then :
- elif test "x${predefault}" = "x"
- then
- echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2
- kill $$
- exit 1
- fi
- fi
- echo ""
- done
- exec 1>&2
- compare_new gdbarch.log
- copyright ()
- {
- cat <<EOF
- /* *INDENT-OFF* */ /* THIS FILE IS GENERATED -*- buffer-read-only: t -*- */
- /* vi:set ro: */
- /* Dynamic architecture support for GDB, the GNU debugger.
- Copyright (C) 1998-2015 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 3 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, see <http://www.gnu.org/licenses/>. */
- /* 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
- }
- exec > new-gdbarch.h
- copyright
- cat <<EOF
- #ifndef GDBARCH_H
- #define GDBARCH_H
- #include "frame.h"
- struct floatformat;
- struct ui_file;
- struct value;
- struct objfile;
- struct obj_section;
- struct minimal_symbol;
- struct regcache;
- struct reggroup;
- struct regset;
- struct disassemble_info;
- struct target_ops;
- struct obstack;
- struct bp_target_info;
- struct target_desc;
- struct objfile;
- struct symbol;
- struct displaced_step_closure;
- struct core_regset_section;
- struct syscall;
- struct agent_expr;
- struct axs_value;
- struct stap_parse_info;
- struct ravenscar_arch_ops;
- struct elf_internal_linux_prpsinfo;
- struct mem_range;
- struct syscalls_info;
- /* The architecture associated with the inferior through the
- connection to the target.
- The architecture vector provides some information that is really a
- property of the inferior, accessed through a particular target:
- ptrace operations; the layout of certain RSP packets; the solib_ops
- vector; etc. To differentiate architecture accesses to
- per-inferior/target properties from
- per-thread/per-frame/per-objfile properties, accesses to
- per-inferior/target properties should be made through this
- gdbarch. */
- /* This is a convenience wrapper for 'current_inferior ()->gdbarch'. */
- extern struct gdbarch *target_gdbarch (void);
- /* Callback type for the 'iterate_over_objfiles_in_search_order'
- gdbarch method. */
- typedef int (iterate_over_objfiles_in_search_order_cb_ftype)
- (struct objfile *objfile, void *cb_data);
- typedef void (iterate_over_regset_sections_cb)
- (const char *sect_name, int size, const struct regset *regset,
- const char *human_name, void *cb_data);
- EOF
- 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_${function}() - not applicable - pre-initialized. */\n"
- fi
- done
- printf "\n"
- printf "\n"
- printf "/* The following are initialized by the target dependent code. */\n"
- function_list | while do_read
- do
- if [ -n "${comment}" ]
- then
- echo "${comment}" | sed \
- -e '2 s,#,/*,' \
- -e '3,$ s,#, ,' \
- -e '$ s,$, */,'
- fi
- if class_is_predicate_p
- then
- printf "\n"
- printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n"
- fi
- if class_is_variable_p
- then
- printf "\n"
- printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
- printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n"
- fi
- if class_is_function_p
- then
- printf "\n"
- if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p
- then
- printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n"
- elif class_is_multiarch_p
- then
- printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n"
- else
- printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n"
- fi
- if [ "x${formal}" = "xvoid" ]
- then
- printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n"
- else
- printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n"
- fi
- printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n"
- fi
- done
- cat <<EOF
- /* Definition for an unknown syscall, used basically in error-cases. */
- #define UNKNOWN_SYSCALL (-1)
- 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 INFO parameter is, as far as possible, be pre-initialized with
- information obtained from INFO.ABFD or the global defaults.
- The ARCHES parameter is a linked list (sorted most recently used)
- of all the previously created architures for this architecture
- family. The (possibly NULL) ARCHES->gdbarch can used to access
- values from the previously selected architecture for this
- architecture family.
- The 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). */
- enum bfd_endian byte_order;
- enum bfd_endian byte_order_for_code;
- /* Use default: NULL (ZERO). */
- bfd *abfd;
- /* Use default: NULL (ZERO). */
- struct gdbarch_tdep_info *tdep_info;
- /* Use default: GDB_OSABI_UNINITIALIZED (-1). */
- enum gdb_osabi osabi;
- /* Use default: NULL (ZERO). */
- const struct target_desc *target_desc;
- };
- typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
- typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
- /* DEPRECATED - use gdbarch_register() */
- extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
- extern void gdbarch_register (enum bfd_architecture architecture,
- gdbarch_init_ftype *,
- gdbarch_dump_tdep_ftype *);
- /* Return a freshly allocated, NULL terminated, array of the valid
- architecture names. Since architectures are registered during the
- _initialize phase this function only returns useful information
- once initialization has been completed. */
- extern const char **gdbarch_printable_names (void);
- /* Helper function. Search the list of ARCHES for a GDBARCH that
- matches the information provided by INFO. */
- extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
- /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform
- basic initialization using values obtained from the INFO and TDEP
- parameters. set_gdbarch_*() functions are called to complete the
- initialization of the object. */
- extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
- /* Helper function. Free a partially-constructed \`\`struct gdbarch''.
- It is assumed that the caller freeds the \`\`struct
- gdbarch_tdep''. */
- extern void gdbarch_free (struct gdbarch *);
- /* Helper function. Allocate memory from the \`\`struct gdbarch''
- obstack. The memory is freed when the corresponding architecture
- is also freed. */
- extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
- #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
- #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
- /* Helper function. Force an update of the current architecture.
- The actual architecture selected is determined by INFO, \`\`(gdb) set
- architecture'' et.al., the existing architecture and BFD's default
- architecture. INFO should be initialized to zero and then selected
- fields should be updated.
- Returns non-zero if the update succeeds. */
- extern int gdbarch_update_p (struct gdbarch_info info);
- /* Helper function. Find an architecture matching info.
- INFO should be initialized using gdbarch_info_init, relevant fields
- set, and then finished using gdbarch_info_fill.
- Returns the corresponding architecture, or NULL if no matching
- architecture was found. */
- extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
- /* Helper function. Set the target gdbarch to "gdbarch". */
- extern void set_target_gdbarch (struct gdbarch *gdbarch);
- /* Register per-architecture data-pointer.
- Reserve space for a per-architecture data-pointer. An identifier
- for the reserved data-pointer is returned. That identifer should
- be saved in a local static variable.
- Memory for the per-architecture data shall be allocated using
- gdbarch_obstack_zalloc. That memory will be deleted when the
- corresponding architecture object is deleted.
- When a previously created architecture is re-selected, the
- per-architecture data-pointer for that previous architecture is
- restored. INIT() is not re-called.
- Multiple registrarants for any architecture are allowed (and
- strongly encouraged). */
- struct gdbarch_data;
- typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
- extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
- typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
- extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
- extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
- struct gdbarch_data *data,
- void *pointer);
- extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
- /* Set the dynamic target-system-dependent parameters (architecture,
- byte-order, ...) using information found in the BFD. */
- extern void set_gdbarch_from_file (bfd *);
- /* Initialize the current architecture to the "first" one we find on
- our list. */
- extern void initialize_current_architecture (void);
- /* gdbarch trace variable */
- extern unsigned int gdbarch_debug;
- extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
- #endif
- EOF
- exec 1>&2
- compare_new gdbarch.h
- exec > new-gdbarch.c
- copyright
- cat <<EOF
- #include "defs.h"
- #include "arch-utils.h"
- #include "gdbcmd.h"
- #include "inferior.h"
- #include "symcat.h"
- #include "floatformat.h"
- #include "reggroups.h"
- #include "osabi.h"
- #include "gdb_obstack.h"
- #include "observer.h"
- #include "regcache.h"
- #include "objfiles.h"
- /* Static function declarations */
- static void alloc_gdbarch_data (struct gdbarch *);
- /* Non-zero if we want to trace architecture code. */
- #ifndef GDBARCH_DEBUG
- #define GDBARCH_DEBUG 0
- #endif
- unsigned int gdbarch_debug = GDBARCH_DEBUG;
- static void
- show_gdbarch_debug (struct ui_file *file, int from_tty,
- struct cmd_list_element *c, const char *value)
- {
- fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value);
- }
- static const char *
- pformat (const struct floatformat **format)
- {
- if (format == NULL)
- return "(null)";
- else
- /* Just print out one of them - this is only for diagnostics. */
- return format[0]->name;
- }
- static const char *
- pstring (const char *string)
- {
- if (string == NULL)
- return "(null)";
- return string;
- }
- /* Helper function to print a list of strings, represented as "const
- char *const *". The list is printed comma-separated. */
- static char *
- pstring_list (const char *const *list)
- {
- static char ret[100];
- const char *const *p;
- size_t offset = 0;
- if (list == NULL)
- return "(null)";
- ret[0] = '\0';
- for (p = list; *p != NULL && offset < sizeof (ret); ++p)
- {
- size_t s = xsnprintf (ret + offset, sizeof (ret) - offset, "%s, ", *p);
- offset += 2 + s;
- }
- if (offset > 0)
- {
- gdb_assert (offset - 2 < sizeof (ret));
- ret[offset - 2] = '\0';
- }
- return ret;
- }
- EOF
- printf "\n"
- printf "/* Maintain the struct gdbarch object. */\n"
- printf "\n"
- printf "struct gdbarch\n"
- printf "{\n"
- printf " /* Has this architecture been fully initialized? */\n"
- printf " int initialized_p;\n"
- printf "\n"
- printf " /* An obstack bound to the lifetime of the architecture. */\n"
- printf " struct obstack *obstack;\n"
- printf "\n"
- printf " /* basic architectural information. */\n"
- function_list | while do_read
- do
- if class_is_info_p
- then
- printf " ${returntype} ${function};\n"
- fi
- done
- printf "\n"
- printf " /* target specific vector. */\n"
- printf " struct gdbarch_tdep *tdep;\n"
- printf " gdbarch_dump_tdep_ftype *dump_tdep;\n"
- printf "\n"
- printf " /* per-architecture data-pointers. */\n"
- printf " unsigned nr_data;\n"
- printf " void **data;\n"
- printf "\n"
- 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
- get_gdbarch(): Implement the set/get functions (probably using
- the macro's as shortcuts).
- */
- EOF
- function_list | while do_read
- do
- if class_is_variable_p
- then
- printf " ${returntype} ${function};\n"
- elif class_is_function_p
- then
- printf " gdbarch_${function}_ftype *${function};\n"
- fi
- done
- printf "};\n"
- cat <<EOF
- /* Create a new \`\`struct gdbarch'' based on information provided by
- \`\`struct gdbarch_info''. */
- EOF
- printf "\n"
- cat <<EOF
- struct gdbarch *
- gdbarch_alloc (const struct gdbarch_info *info,
- struct gdbarch_tdep *tdep)
- {
- struct gdbarch *gdbarch;
- /* Create an obstack for allocating all the per-architecture memory,
- then use that to allocate the architecture vector. */
- struct obstack *obstack = XNEW (struct obstack);
- obstack_init (obstack);
- gdbarch = obstack_alloc (obstack, sizeof (*gdbarch));
- memset (gdbarch, 0, sizeof (*gdbarch));
- gdbarch->obstack = obstack;
- alloc_gdbarch_data (gdbarch);
- gdbarch->tdep = tdep;
- EOF
- printf "\n"
- function_list | while do_read
- do
- if class_is_info_p
- then
- printf " gdbarch->${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${predefault}" != "x0" ]
- then
- printf " gdbarch->${function} = ${predefault};\n"
- fi
- fi
- done
- cat <<EOF
- /* gdbarch_alloc() */
- return gdbarch;
- }
- EOF
- printf "\n"
- printf "\n"
- cat <<EOF
- /* Allocate extra space using the per-architecture obstack. */
- void *
- gdbarch_obstack_zalloc (struct gdbarch *arch, long size)
- {
- void *data = obstack_alloc (arch->obstack, size);
- memset (data, 0, size);
- return data;
- }
- /* Free a gdbarch struct. This should never happen in normal
- operation --- once you've created a gdbarch, you keep it around.
- However, if an architecture's init function encounters an error
- building the structure, it may need to clean up a partially
- constructed gdbarch. */
- void
- gdbarch_free (struct gdbarch *arch)
- {
- struct obstack *obstack;
- gdb_assert (arch != NULL);
- gdb_assert (!arch->initialized_p);
- obstack = arch->obstack;
- obstack_free (obstack, 0); /* Includes the ARCH. */
- xfree (obstack);
- }
- EOF
- cat <<EOF
- /* Ensure that all values in a GDBARCH are reasonable. */
- static void
- verify_gdbarch (struct gdbarch *gdbarch)
- {
- struct ui_file *log;
- struct cleanup *cleanups;
- long length;
- char *buf;
- log = mem_fileopen ();
- cleanups = make_cleanup_ui_file_delete (log);
- /* fundamental */
- if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN)
- fprintf_unfiltered (log, "\n\tbyte-order");
- if (gdbarch->bfd_arch_info == NULL)
- fprintf_unfiltered (log, "\n\tbfd_arch_info");
- /* Check those that need to be defined for the given multi-arch level. */
- EOF
- function_list | while do_read
- do
- if class_is_function_p || class_is_variable_p
- then
- if [ "x${invalid_p}" = "x0" ]
- then
- printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
- elif class_is_predicate_p
- then
- printf " /* Skip verify of ${function}, has predicate. */\n"
- FIXME
- elif [ -n "${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 (${invalid_p})\n"
- printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
- elif [ -n "${predefault}" ]
- then
- printf " if (gdbarch->${function} == ${predefault})\n"
- printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n"
- fi
- fi
- done
- cat <<EOF
- buf = ui_file_xstrdup (log, &length);
- make_cleanup (xfree, buf);
- if (length > 0)
- internal_error (__FILE__, __LINE__,
- _("verify_gdbarch: the following are invalid ...%s"),
- buf);
- do_cleanups (cleanups);
- }
- EOF
- printf "\n"
- printf "\n"
- cat <<EOF
- /* Print out the details of the current architecture. */
- void
- gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
- {
- const char *gdb_nm_file = "<not-defined>";
- #if defined (GDB_NM_FILE)
- gdb_nm_file = GDB_NM_FILE;
- #endif
- fprintf_unfiltered (file,
- "gdbarch_dump: GDB_NM_FILE = %s\\n",
- gdb_nm_file);
- EOF
- function_list | sort -t: -k 3 | while do_read
- do
-
- if class_is_predicate_p
- then
- printf " fprintf_unfiltered (file,\n"
- printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n"
- printf " gdbarch_${function}_p (gdbarch));\n"
- fi
-
- if class_is_function_p
- then
- printf " fprintf_unfiltered (file,\n"
- printf " \"gdbarch_dump: ${function} = <%%s>\\\\n\",\n"
- printf " host_address_to_string (gdbarch->${function}));\n"
- else
-
- case "${print}:${returntype}" in
- :CORE_ADDR )
- fmt="%s"
- print="core_addr_to_string_nz (gdbarch->${function})"
- ;;
- :* )
- fmt="%s"
- print="plongest (gdbarch->${function})"
- ;;
- * )
- fmt="%s"
- ;;
- esac
- printf " fprintf_unfiltered (file,\n"
- printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}"
- printf " ${print});\n"
- fi
- done
- cat <<EOF
- if (gdbarch->dump_tdep != NULL)
- gdbarch->dump_tdep (gdbarch, file);
- }
- EOF
- printf "\n"
- cat <<EOF
- struct gdbarch_tdep *
- gdbarch_tdep (struct gdbarch *gdbarch)
- {
- if (gdbarch_debug >= 2)
- fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n");
- return gdbarch->tdep;
- }
- EOF
- printf "\n"
- function_list | while do_read
- do
- if class_is_predicate_p
- then
- printf "\n"
- printf "int\n"
- printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n"
- printf "{\n"
- printf " gdb_assert (gdbarch != NULL);\n"
- printf " return ${predicate};\n"
- printf "}\n"
- fi
- if class_is_function_p
- then
- printf "\n"
- printf "${returntype}\n"
- if [ "x${formal}" = "xvoid" ]
- then
- printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
- else
- printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n"
- fi
- printf "{\n"
- printf " gdb_assert (gdbarch != NULL);\n"
- printf " gdb_assert (gdbarch->${function} != NULL);\n"
- if class_is_predicate_p && test -n "${predefault}"
- then
-
- printf " /* Do not check predicate: ${predicate}, allow call. */\n"
- fi
- printf " if (gdbarch_debug >= 2)\n"
- printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
- if [ "x${actual}" = "x-" -o "x${actual}" = "x" ]
- then
- if class_is_multiarch_p
- then
- params="gdbarch"
- else
- params=""
- fi
- else
- if class_is_multiarch_p
- then
- params="gdbarch, ${actual}"
- else
- params="${actual}"
- fi
- fi
- if [ "x${returntype}" = "xvoid" ]
- then
- printf " gdbarch->${function} (${params});\n"
- else
- printf " return gdbarch->${function} (${params});\n"
- fi
- printf "}\n"
- printf "\n"
- printf "void\n"
- printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
- printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n"
- printf "{\n"
- printf " gdbarch->${function} = ${function};\n"
- printf "}\n"
- elif class_is_variable_p
- then
- printf "\n"
- printf "${returntype}\n"
- printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
- printf "{\n"
- printf " gdb_assert (gdbarch != NULL);\n"
- if [ "x${invalid_p}" = "x0" ]
- then
- printf " /* Skip verify of ${function}, invalid_p == 0 */\n"
- elif [ -n "${invalid_p}" ]
- then
- printf " /* Check variable is valid. */\n"
- printf " gdb_assert (!(${invalid_p}));\n"
- elif [ -n "${predefault}" ]
- then
- printf " /* Check variable changed from pre-default. */\n"
- printf " gdb_assert (gdbarch->${function} != ${predefault});\n"
- fi
- printf " if (gdbarch_debug >= 2)\n"
- printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
- printf " return gdbarch->${function};\n"
- printf "}\n"
- printf "\n"
- printf "void\n"
- printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n"
- printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n"
- printf "{\n"
- printf " gdbarch->${function} = ${function};\n"
- printf "}\n"
- elif class_is_info_p
- then
- printf "\n"
- printf "${returntype}\n"
- printf "gdbarch_${function} (struct gdbarch *gdbarch)\n"
- printf "{\n"
- printf " gdb_assert (gdbarch != NULL);\n"
- printf " if (gdbarch_debug >= 2)\n"
- printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n"
- printf " return gdbarch->${function};\n"
- printf "}\n"
- fi
- done
- cat <<EOF
- /* Keep a registry of per-architecture data-pointers required by GDB
- modules. */
- struct gdbarch_data
- {
- unsigned index;
- int init_p;
- gdbarch_data_pre_init_ftype *pre_init;
- gdbarch_data_post_init_ftype *post_init;
- };
- struct gdbarch_data_registration
- {
- struct gdbarch_data *data;
- struct gdbarch_data_registration *next;
- };
- struct gdbarch_data_registry
- {
- unsigned nr;
- struct gdbarch_data_registration *registrations;
- };
- struct gdbarch_data_registry gdbarch_data_registry =
- {
- 0, NULL,
- };
- static struct gdbarch_data *
- gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init,
- gdbarch_data_post_init_ftype *post_init)
- {
- struct gdbarch_data_registration **curr;
- /* Append the new registration. */
- for (curr = &gdbarch_data_registry.registrations;
- (*curr) != NULL;
- curr = &(*curr)->next);
- (*curr) = XNEW (struct gdbarch_data_registration);
- (*curr)->next = NULL;
- (*curr)->data = XNEW (struct gdbarch_data);
- (*curr)->data->index = gdbarch_data_registry.nr++;
- (*curr)->data->pre_init = pre_init;
- (*curr)->data->post_init = post_init;
- (*curr)->data->init_p = 1;
- return (*curr)->data;
- }
- struct gdbarch_data *
- gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init)
- {
- return gdbarch_data_register (pre_init, NULL);
- }
- struct gdbarch_data *
- gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init)
- {
- return gdbarch_data_register (NULL, post_init);
- }
- /* Create/delete the gdbarch data vector. */
- static void
- alloc_gdbarch_data (struct gdbarch *gdbarch)
- {
- gdb_assert (gdbarch->data == NULL);
- gdbarch->nr_data = gdbarch_data_registry.nr;
- gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *);
- }
- /* Initialize the current value of the specified per-architecture
- data-pointer. */
- void
- deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
- struct gdbarch_data *data,
- void *pointer)
- {
- gdb_assert (data->index < gdbarch->nr_data);
- gdb_assert (gdbarch->data[data->index] == NULL);
- gdb_assert (data->pre_init == NULL);
- gdbarch->data[data->index] = pointer;
- }
- /* Return the current value of the specified per-architecture
- data-pointer. */
- void *
- gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data)
- {
- gdb_assert (data->index < gdbarch->nr_data);
- if (gdbarch->data[data->index] == NULL)
- {
- /* The data-pointer isn't initialized, call init() to get a
- value. */
- if (data->pre_init != NULL)
- /* Mid architecture creation: pass just the obstack, and not
- the entire architecture, as that way it isn't possible for
- pre-init code to refer to undefined architecture
- fields. */
- gdbarch->data[data->index] = data->pre_init (gdbarch->obstack);
- else if (gdbarch->initialized_p
- && data->post_init != NULL)
- /* Post architecture creation: pass the entire architecture
- (as all fields are valid), but be careful to also detect
- recursive references. */
- {
- gdb_assert (data->init_p);
- data->init_p = 0;
- gdbarch->data[data->index] = data->post_init (gdbarch);
- data->init_p = 1;
- }
- else
- /* The architecture initialization hasn't completed - punt -
- hope that the caller knows what they are doing. Once
- deprecated_set_gdbarch_data has been initialized, this can be
- changed to an internal error. */
- return NULL;
- gdb_assert (gdbarch->data[data->index] != NULL);
- }
- return gdbarch->data[data->index];
- }
- /* Keep a registry of the architectures known by GDB. */
- struct gdbarch_registration
- {
- enum bfd_architecture bfd_architecture;
- gdbarch_init_ftype *init;
- gdbarch_dump_tdep_ftype *dump_tdep;
- struct gdbarch_list *arches;
- struct gdbarch_registration *next;
- };
- static struct gdbarch_registration *gdbarch_registry = NULL;
- static void
- append_name (const char ***buf, int *nr, const char *name)
- {
- *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1));
- (*buf)[*nr] = name;
- *nr += 1;
- }
- const char **
- gdbarch_printable_names (void)
- {
- /* Accumulate a list of names based on the registed list of
- architectures. */
- int nr_arches = 0;
- const char **arches = NULL;
- struct gdbarch_registration *rego;
- for (rego = gdbarch_registry;
- rego != NULL;
- rego = rego->next)
- {
- const struct bfd_arch_info *ap;
- ap = bfd_lookup_arch (rego->bfd_architecture, 0);
- if (ap == NULL)
- internal_error (__FILE__, __LINE__,
- _("gdbarch_architecture_names: multi-arch unknown"));
- do
- {
- append_name (&arches, &nr_arches, ap->printable_name);
- ap = ap->next;
- }
- while (ap != NULL);
- }
- append_name (&arches, &nr_arches, NULL);
- return arches;
- }
- void
- gdbarch_register (enum bfd_architecture bfd_architecture,
- gdbarch_init_ftype *init,
- gdbarch_dump_tdep_ftype *dump_tdep)
- {
- struct gdbarch_registration **curr;
- const struct bfd_arch_info *bfd_arch_info;
- /* Check that BFD recognizes this architecture */
- bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0);
- if (bfd_arch_info == NULL)
- {
- internal_error (__FILE__, __LINE__,
- _("gdbarch: Attempt to register "
- "unknown architecture (%d)"),
- bfd_architecture);
- }
- /* Check that we haven't seen this architecture before. */
- for (curr = &gdbarch_registry;
- (*curr) != NULL;
- curr = &(*curr)->next)
- {
- if (bfd_architecture == (*curr)->bfd_architecture)
- internal_error (__FILE__, __LINE__,
- _("gdbarch: Duplicate registration "
- "of architecture (%s)"),
- bfd_arch_info->printable_name);
- }
- /* log it */
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, %s)\n",
- bfd_arch_info->printable_name,
- host_address_to_string (init));
- /* Append it */
- (*curr) = XNEW (struct gdbarch_registration);
- (*curr)->bfd_architecture = bfd_architecture;
- (*curr)->init = init;
- (*curr)->dump_tdep = dump_tdep;
- (*curr)->arches = NULL;
- (*curr)->next = NULL;
- }
- void
- register_gdbarch_init (enum bfd_architecture bfd_architecture,
- gdbarch_init_ftype *init)
- {
- gdbarch_register (bfd_architecture, init, NULL);
- }
- /* Look for an architecture using gdbarch_info. */
- struct gdbarch_list *
- gdbarch_list_lookup_by_info (struct gdbarch_list *arches,
- const struct gdbarch_info *info)
- {
- for (; arches != NULL; arches = arches->next)
- {
- if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info)
- continue;
- if (info->byte_order != arches->gdbarch->byte_order)
- continue;
- if (info->osabi != arches->gdbarch->osabi)
- continue;
- if (info->target_desc != arches->gdbarch->target_desc)
- continue;
- return arches;
- }
- return NULL;
- }
- /* Find an architecture that matches the specified INFO. Create a new
- architecture if needed. Return that new architecture. */
- struct gdbarch *
- gdbarch_find_by_info (struct gdbarch_info info)
- {
- struct gdbarch *new_gdbarch;
- struct gdbarch_registration *rego;
- /* Fill in missing parts of the INFO struct using a number of
- sources: "set ..."; INFOabfd supplied; and the global
- defaults. */
- gdbarch_info_fill (&info);
- /* Must have found some sort of architecture. */
- gdb_assert (info.bfd_arch_info != NULL);
- if (gdbarch_debug)
- {
- fprintf_unfiltered (gdb_stdlog,
- "gdbarch_find_by_info: info.bfd_arch_info %s\n",
- (info.bfd_arch_info != NULL
- ? info.bfd_arch_info->printable_name
- : "(null)"));
- fprintf_unfiltered (gdb_stdlog,
- "gdbarch_find_by_info: info.byte_order %d (%s)\n",
- info.byte_order,
- (info.byte_order == BFD_ENDIAN_BIG ? "big"
- : info.byte_order == BFD_ENDIAN_LITTLE ? "little"
- : "default"));
- fprintf_unfiltered (gdb_stdlog,
- "gdbarch_find_by_info: info.osabi %d (%s)\n",
- info.osabi, gdbarch_osabi_name (info.osabi));
- fprintf_unfiltered (gdb_stdlog,
- "gdbarch_find_by_info: info.abfd %s\n",
- host_address_to_string (info.abfd));
- fprintf_unfiltered (gdb_stdlog,
- "gdbarch_find_by_info: info.tdep_info %s\n",
- host_address_to_string (info.tdep_info));
- }
- /* Find the tdep code that knows about this architecture. */
- for (rego = gdbarch_registry;
- rego != NULL;
- rego = rego->next)
- if (rego->bfd_architecture == info.bfd_arch_info->arch)
- break;
- if (rego == NULL)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
- "No matching architecture\n");
- return 0;
- }
- /* Ask the tdep code for an architecture that matches "info". */
- new_gdbarch = rego->init (info, rego->arches);
- /* Did the tdep code like it? No. Reject the change and revert to
- the old architecture. */
- if (new_gdbarch == NULL)
- {
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
- "Target rejected architecture\n");
- return NULL;
- }
- /* Is this a pre-existing architecture (as determined by already
- being initialized)? Move it to the front of the architecture
- list (keeping the list sorted Most Recently Used). */
- if (new_gdbarch->initialized_p)
- {
- struct gdbarch_list **list;
- struct gdbarch_list *this;
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
- "Previous architecture %s (%s) selected\n",
- host_address_to_string (new_gdbarch),
- new_gdbarch->bfd_arch_info->printable_name);
- /* Find the existing arch in the list. */
- for (list = ®o->arches;
- (*list) != NULL && (*list)->gdbarch != new_gdbarch;
- list = &(*list)->next);
- /* It had better be in the list of architectures. */
- gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch);
- /* Unlink THIS. */
- this = (*list);
- (*list) = this->next;
- /* Insert THIS at the front. */
- this->next = rego->arches;
- rego->arches = this;
- /* Return it. */
- return new_gdbarch;
- }
- /* It's a new architecture. */
- if (gdbarch_debug)
- fprintf_unfiltered (gdb_stdlog, "gdbarch_find_by_info: "
- "New architecture %s (%s) selected\n",
- host_address_to_string (new_gdbarch),
- new_gdbarch->bfd_arch_info->printable_name);
- /* Insert the new architecture into the front of the architecture
- list (keep the list sorted Most Recently Used). */
- {
- struct gdbarch_list *this = XNEW (struct gdbarch_list);
- this->next = rego->arches;
- this->gdbarch = new_gdbarch;
- rego->arches = this;
- }
- /* Check that the newly installed architecture is valid. Plug in
- any post init values. */
- new_gdbarch->dump_tdep = rego->dump_tdep;
- verify_gdbarch (new_gdbarch);
- new_gdbarch->initialized_p = 1;
- if (gdbarch_debug)
- gdbarch_dump (new_gdbarch, gdb_stdlog);
- return new_gdbarch;
- }
- /* Make the specified architecture current. */
- void
- set_target_gdbarch (struct gdbarch *new_gdbarch)
- {
- gdb_assert (new_gdbarch != NULL);
- gdb_assert (new_gdbarch->initialized_p);
- current_inferior ()->gdbarch = new_gdbarch;
- observer_notify_architecture_changed (new_gdbarch);
- registers_changed ();
- }
- /* Return the current inferior's arch. */
- struct gdbarch *
- target_gdbarch (void)
- {
- return current_inferior ()->gdbarch;
- }
- extern void _initialize_gdbarch (void);
- void
- _initialize_gdbarch (void)
- {
- add_setshow_zuinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\
- Set architecture debugging."), _("\\
- Show architecture debugging."), _("\\
- When non-zero, architecture debugging is enabled."),
- NULL,
- show_gdbarch_debug,
- &setdebuglist, &showdebuglist);
- }
- EOF
- exec 1>&2
- compare_new gdbarch.c