1 /* Dynamic architecture support for GDB, the GNU debugger.
3 Copyright (C) 1998, 1999, 2000, 2002, 2003, 2004, 2007
4 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
21 #ifndef GDBARCH_UTILS_H
22 #define GDBARCH_UTILS_H
26 struct minimal_symbol
;
30 /* gdbarch trace variable */
31 extern int gdbarch_debug
;
33 /* The only possible cases for inner_than. */
34 extern int core_addr_lessthan (CORE_ADDR lhs
, CORE_ADDR rhs
);
35 extern int core_addr_greaterthan (CORE_ADDR lhs
, CORE_ADDR rhs
);
37 /* Identity functions on a CORE_ADDR. Just return the "addr". */
39 extern CORE_ADDR
core_addr_identity (CORE_ADDR addr
);
40 extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity
;
42 /* No-op conversion of reg to regnum. */
44 extern int no_op_reg_to_regnum (int reg
);
46 /* Do nothing version of elf_make_msymbol_special. */
48 void default_elf_make_msymbol_special (asymbol
*sym
, struct minimal_symbol
*msym
);
50 /* Do nothing version of coff_make_msymbol_special. */
52 void default_coff_make_msymbol_special (int val
, struct minimal_symbol
*msym
);
54 /* Version of cannot_fetch_register() / cannot_store_register() that
57 int cannot_register_not (int regnum
);
59 /* Legacy version of target_virtual_frame_pointer(). Assumes that
60 there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
63 extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer
;
65 extern CORE_ADDR
generic_skip_trampoline_code (struct frame_info
*frame
,
68 extern CORE_ADDR
generic_skip_solib_resolver (struct gdbarch
*gdbarch
,
71 extern int generic_in_solib_return_trampoline (CORE_ADDR pc
, char *name
);
73 extern int generic_in_function_epilogue_p (struct gdbarch
*gdbarch
, CORE_ADDR pc
);
75 /* By default, registers are not convertible. */
76 extern int generic_convert_register_p (int regnum
, struct type
*type
);
78 extern int default_stabs_argument_has_addr (struct gdbarch
*gdbarch
,
81 extern int generic_instruction_nullified (struct gdbarch
*gdbarch
,
82 struct regcache
*regcache
);
84 int default_remote_register_number (struct gdbarch
*gdbarch
,
87 /* For compatibility with older architectures, returns
88 (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
91 extern int legacy_register_sim_regno (int regnum
);
93 /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte
94 order was explicitly selected. */
95 extern enum bfd_endian
selected_byte_order (void);
97 /* Return the selected architecture's name, or NULL if no architecture
98 was explicitly selected. */
99 extern const char *selected_architecture_name (void);
101 /* Initialize a ``struct info''. Can't use memset(0) since some
102 default values are not zero. "fill" takes all available
103 information and fills in any unspecified fields. */
105 extern void gdbarch_info_init (struct gdbarch_info
*info
);
107 /* Similar to init, but this time fill in the blanks. Information is
108 obtained from the global "set ..." options and explicitly
109 initialized INFO fields. */
110 extern void gdbarch_info_fill (struct gdbarch_info
*info
);
112 /* Return the architecture for ABFD. If no suitable architecture
113 could be find, return NULL. */
115 extern struct gdbarch
*gdbarch_from_bfd (bfd
*abfd
);