X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=gdb%2Farch-utils.h;h=6045ac0acc1b4eabb4dd6b53b89e762e2d78ea4d;hb=e8a38df5d8d2502c3d3b3cd4054019d8d5748a90;hp=3452fc81350615c1cf4d9663dcd7bf2755b5853c;hpb=97f46953947f21e2b8f1cac99546b7d6b51a84cc;p=deliverable%2Fbinutils-gdb.git diff --git a/gdb/arch-utils.h b/gdb/arch-utils.h index 3452fc8135..6045ac0acc 100644 --- a/gdb/arch-utils.h +++ b/gdb/arch-utils.h @@ -1,6 +1,7 @@ /* Dynamic architecture support for GDB, the GNU debugger. - Copyright 1998, 1999, 2000, 2002 Free Software Foundation, Inc. + Copyright 1998, 1999, 2000, 2002, 2003, 2004 Free Software + Foundation, Inc. This file is part of GDB. @@ -22,22 +23,23 @@ #ifndef GDBARCH_UTILS_H #define GDBARCH_UTILS_H +struct gdbarch; +struct frame_info; +struct minimal_symbol; +struct type; +struct gdbarch_info; + /* gdbarch trace variable */ extern int gdbarch_debug; -/* Fallback for register convertible. */ -extern gdbarch_register_convertible_ftype generic_register_convertible_not; - -extern CORE_ADDR generic_cannot_extract_struct_value_address (char *dummy); - -/* Helper function for targets that don't know how my arguments are - being passed */ -extern gdbarch_frame_num_args_ftype frame_num_args_unknown; - -/* Implementation of breakpoint from PC using any of the deprecated - macros BREAKPOINT, LITTLE_BREAKPOINT, BIG_BREAPOINT. For legacy - targets that don't yet implement their own breakpoint_from_pc(). */ -extern gdbarch_breakpoint_from_pc_ftype legacy_breakpoint_from_pc; +/* An implementation of return_value that props up architectures still + using USE_STRUCT_RETURN, EXTRACT_RETURN_VALUE and + STORE_RETURN_VALUE. See also the hacks in "stack.c". */ +enum return_value_convention legacy_return_value (struct gdbarch *gdbarch, + struct type *valtype, + struct regcache *regcache, + void *readbuf, + const void *writebuf); /* Implementation of extract return value that grubs around in the register cache. */ @@ -46,32 +48,13 @@ extern gdbarch_extract_return_value_ftype legacy_extract_return_value; /* Implementation of store return value that grubs the register cache. */ extern gdbarch_store_return_value_ftype legacy_store_return_value; -/* Frameless functions not identifable. */ -extern gdbarch_frameless_function_invocation_ftype generic_frameless_function_invocation_not; - -/* Only structures, unions, and arrays are returned using the struct - convention. Note that arrays are never passed by value in the C - language family, so that case is irrelevant for C. */ -extern gdbarch_return_value_on_stack_ftype generic_return_value_on_stack_not; - -/* Map onto old REGISTER_NAMES. */ -extern const char *legacy_register_name (int i); - -/* Accessor for old global function pointer for disassembly. */ -extern int legacy_print_insn (bfd_vma vma, disassemble_info *info); - -/* Backward compatible call_dummy_words. */ -extern LONGEST legacy_call_dummy_words[]; -extern int legacy_sizeof_call_dummy_words; +/* To return any structure or union type by value, store it at the + address passed as an invisible first argument to the function. */ +extern gdbarch_deprecated_use_struct_convention_ftype always_use_struct_convention; /* Typical remote_translate_xfer_address */ extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address; -/* Generic implementation of prologue_frameless_p. Just calls - SKIP_PROLOG and checks the return value to see if it actually - changed. */ -extern gdbarch_prologue_frameless_p_ftype generic_prologue_frameless_p; - /* The only possible cases for inner_than. */ extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs); extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); @@ -80,47 +63,15 @@ extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); extern const struct floatformat *default_float_format (struct gdbarch *gdbarch); extern const struct floatformat *default_double_format (struct gdbarch *gdbarch); -/* Helper function for targets that don't know how my arguments are - being passed */ -extern int frame_num_args_unknown (struct frame_info *fi); - - -/* The following DEPRECATED interfaces are for pre- multi-arch legacy - targets. */ - -/* DEPRECATED pre- multi-arch interface. Explicitly set the dynamic - target-system-dependent parameters based on bfd_architecture and - machine. This function is deprecated, use - set_gdbarch_from_arch_machine(). */ - -extern void set_architecture_from_arch_mach (enum bfd_architecture, unsigned long); - -/* DEPRECATED pre- multi-arch interface. Notify the target dependent - 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 *); - -/* Identity function on a CORE_ADDR. Just returns its parameter. */ +/* Identity functions on a CORE_ADDR. Just return the "addr". */ extern CORE_ADDR core_addr_identity (CORE_ADDR addr); +extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; /* No-op conversion of reg to regnum. */ extern int no_op_reg_to_regnum (int reg); -/* Default prepare_to_procced. */ - -extern int default_prepare_to_proceed (int select_it); - -extern int generic_prepare_to_proceed (int select_it); - -/* Versions of init_frame_pc(). Do nothing; do the default. */ - -extern CORE_ADDR init_frame_pc_noop (int fromleaf, struct frame_info *prev); - -extern CORE_ADDR init_frame_pc_default (int fromleaf, struct frame_info *prev); - /* Do nothing version of elf_make_msymbol_special. */ void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym); @@ -135,13 +86,15 @@ void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); int cannot_register_not (int regnum); /* Legacy version of target_virtual_frame_pointer(). Assumes that - there is an FP_REGNUM and that it is the same, cooked or raw. */ + there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or + raw. */ extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc); -extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name); +extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, + CORE_ADDR pc); extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name); @@ -155,17 +108,17 @@ extern int generic_register_size (int regnum); /* Assume that the world is sane, the registers are all adjacent. */ extern int generic_register_byte (int regnum); -/* Prop up old targets that use various IN_SIGTRAMP() macros. */ +/* Prop up old targets that use various sigtramp macros. */ extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name); -/* The orginal register_convert*() functions were overloaded. They - were used to both: convert between virtual and raw register formats - (something that is discouraged); and to convert a register to the - type of a corresponding variable. These legacy functions preserve - that overloaded behavour in existing targets. */ -extern int legacy_convert_register_p (int regnum); -extern void legacy_register_to_value (int regnum, struct type *type, char *from, char *to); -extern void legacy_value_to_register (struct type *type, int regnum, char *from, char *to); +/* By default, registers are not convertible. */ +extern int generic_convert_register_p (int regnum, struct type *type); + +extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, + struct type *type); + +extern int generic_instruction_nullified (struct gdbarch *gdbarch, + struct regcache *regcache); /* For compatibility with older architectures, returns (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid @@ -173,8 +126,31 @@ extern void legacy_value_to_register (struct type *type, int regnum, char *from, extern int legacy_register_sim_regno (int regnum); +/* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte + order was explicitly selected. */ +extern enum bfd_endian selected_byte_order (void); + +/* Return the selected architecture's name, or NULL if no architecture + was explicitly selected. */ +extern const char *selected_architecture_name (void); + /* Initialize a ``struct info''. Can't use memset(0) since some - default values are not zero. */ + default values are not zero. "fill" takes all available + information and fills in any unspecified fields. */ + extern void gdbarch_info_init (struct gdbarch_info *info); +extern void gdbarch_info_fill (struct gdbarch *gdbarch, + struct gdbarch_info *info); + +/* Similar to init, but this time fill in the blanks. Information is + obtained from the specified architecture, global "set ..." options, + and explicitly initialized INFO fields. */ +extern void gdbarch_info_fill (struct gdbarch *gdbarch, + struct gdbarch_info *info); + +/* Return the architecture for ABFD. If no suitable architecture + could be find, return NULL. */ + +extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); #endif