Commit | Line | Data |
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c0e8c252 | 1 | /* Dynamic architecture support for GDB, the GNU debugger. |
d7bd68ca | 2 | |
e2d0e7eb AC |
3 | Copyright 1998, 1999, 2000, 2002, 2003 Free Software Foundation, |
4 | Inc. | |
c0e8c252 AC |
5 | |
6 | This file is part of GDB. | |
7 | ||
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 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #ifndef GDBARCH_UTILS_H | |
24 | #define GDBARCH_UTILS_H | |
25 | ||
da3331ec AC |
26 | struct gdbarch; |
27 | struct frame_info; | |
28 | struct minimal_symbol; | |
29 | struct type; | |
30 | struct gdbarch_info; | |
31 | ||
c0e8c252 AC |
32 | /* gdbarch trace variable */ |
33 | extern int gdbarch_debug; | |
34 | ||
35 | /* Fallback for register convertible. */ | |
781a750d | 36 | extern gdbarch_deprecated_register_convertible_ftype deprecated_register_convertible_not; |
c0e8c252 | 37 | |
049ee0e4 AC |
38 | /* Implementation of extract return value that grubs around in the |
39 | register cache. */ | |
40 | extern gdbarch_extract_return_value_ftype legacy_extract_return_value; | |
41 | ||
ebba8386 AC |
42 | /* Implementation of store return value that grubs the register cache. */ |
43 | extern gdbarch_store_return_value_ftype legacy_store_return_value; | |
44 | ||
1fd35568 JB |
45 | /* To return any structure or union type by value, store it at the |
46 | address passed as an invisible first argument to the function. */ | |
47 | extern gdbarch_use_struct_convention_ftype always_use_struct_convention; | |
48 | ||
c0e8c252 AC |
49 | /* Frameless functions not identifable. */ |
50 | extern gdbarch_frameless_function_invocation_ftype generic_frameless_function_invocation_not; | |
51 | ||
71a9f22e JB |
52 | /* Only structures, unions, and arrays are returned using the struct |
53 | convention. Note that arrays are never passed by value in the C | |
54 | language family, so that case is irrelevant for C. */ | |
55 | extern gdbarch_return_value_on_stack_ftype generic_return_value_on_stack_not; | |
56 | ||
c0e8c252 AC |
57 | /* Backward compatible call_dummy_words. */ |
58 | extern LONGEST legacy_call_dummy_words[]; | |
59 | extern int legacy_sizeof_call_dummy_words; | |
60 | ||
61 | /* Typical remote_translate_xfer_address */ | |
62 | extern gdbarch_remote_translate_xfer_address_ftype generic_remote_translate_xfer_address; | |
63 | ||
dad41f9a AC |
64 | /* Generic implementation of prologue_frameless_p. Just calls |
65 | SKIP_PROLOG and checks the return value to see if it actually | |
66 | changed. */ | |
67 | extern gdbarch_prologue_frameless_p_ftype generic_prologue_frameless_p; | |
68 | ||
3339cf8b AC |
69 | /* The only possible cases for inner_than. */ |
70 | extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs); | |
71 | extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); | |
72 | ||
f0d4cc9e AC |
73 | /* Floating point values. */ |
74 | extern const struct floatformat *default_float_format (struct gdbarch *gdbarch); | |
75 | extern const struct floatformat *default_double_format (struct gdbarch *gdbarch); | |
76 | ||
e2d0e7eb | 77 | /* Identity functions on a CORE_ADDR. Just return the "addr". */ |
f517ea4e | 78 | |
875e1767 | 79 | extern CORE_ADDR core_addr_identity (CORE_ADDR addr); |
e2d0e7eb | 80 | extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; |
f517ea4e | 81 | |
88c72b7d AC |
82 | /* No-op conversion of reg to regnum. */ |
83 | ||
84 | extern int no_op_reg_to_regnum (int reg); | |
85 | ||
7824d2f2 | 86 | /* Versions of init_frame_pc(). Do nothing; do the default. */ |
10312cc4 | 87 | |
0968aa8c | 88 | extern CORE_ADDR deprecated_init_frame_pc_default (int fromleaf, struct frame_info *prev); |
7824d2f2 | 89 | |
a2cf933a EZ |
90 | /* Do nothing version of elf_make_msymbol_special. */ |
91 | ||
92 | void default_elf_make_msymbol_special (asymbol *sym, struct minimal_symbol *msym); | |
93 | ||
94 | /* Do nothing version of coff_make_msymbol_special. */ | |
95 | ||
96 | void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); | |
97 | ||
01fb7433 AC |
98 | /* Version of cannot_fetch_register() / cannot_store_register() that |
99 | always fails. */ | |
100 | ||
101 | int cannot_register_not (int regnum); | |
102 | ||
39d4ef09 | 103 | /* Legacy version of target_virtual_frame_pointer(). Assumes that |
0ba6dca9 AC |
104 | there is an DEPRECATED_FP_REGNUM and that it is the same, cooked or |
105 | raw. */ | |
39d4ef09 AC |
106 | |
107 | extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; | |
108 | ||
bdcd319a CV |
109 | extern CORE_ADDR generic_skip_trampoline_code (CORE_ADDR pc); |
110 | ||
4c8c40e6 MK |
111 | extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, |
112 | CORE_ADDR pc); | |
dea0c52f | 113 | |
68e9cc94 CV |
114 | extern int generic_in_solib_call_trampoline (CORE_ADDR pc, char *name); |
115 | ||
d50355b6 MS |
116 | extern int generic_in_solib_return_trampoline (CORE_ADDR pc, char *name); |
117 | ||
c12260ac CV |
118 | extern int generic_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc); |
119 | ||
b2e75d78 AC |
120 | /* Assume that the world is sane, a registers raw and virtual size |
121 | both match its type. */ | |
46cd78fb | 122 | |
b2e75d78 | 123 | extern int generic_register_size (int regnum); |
ce29138a | 124 | |
a7e3c2ad AC |
125 | /* Assume that the world is sane, the registers are all adjacent. */ |
126 | extern int generic_register_byte (int regnum); | |
127 | ||
d7bd68ca AC |
128 | /* Prop up old targets that use various IN_SIGTRAMP() macros. */ |
129 | extern int legacy_pc_in_sigtramp (CORE_ADDR pc, char *name); | |
130 | ||
13d01224 AC |
131 | /* The orginal register_convert*() functions were overloaded. They |
132 | were used to both: convert between virtual and raw register formats | |
133 | (something that is discouraged); and to convert a register to the | |
134 | type of a corresponding variable. These legacy functions preserve | |
135 | that overloaded behavour in existing targets. */ | |
ff2e87ac AC |
136 | extern int legacy_convert_register_p (int regnum, struct type *type); |
137 | extern void legacy_register_to_value (struct frame_info *frame, int regnum, | |
138 | struct type *type, void *to); | |
139 | extern void legacy_value_to_register (struct frame_info *frame, int regnum, | |
140 | struct type *type, const void *from); | |
13d01224 | 141 | |
192cb3d4 MK |
142 | extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, |
143 | struct type *type); | |
144 | ||
4182591f AC |
145 | /* For compatibility with older architectures, returns |
146 | (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid | |
147 | name. */ | |
148 | ||
149 | extern int legacy_register_sim_regno (int regnum); | |
150 | ||
a8cf2722 AC |
151 | /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte |
152 | order was explicitly selected. */ | |
153 | extern enum bfd_endian selected_byte_order (void); | |
154 | ||
155 | /* Return the selected architecture's name, or NULL if no architecture | |
156 | was explicitly selected. */ | |
157 | extern const char *selected_architecture_name (void); | |
158 | ||
fb6ecb0f | 159 | /* Initialize a ``struct info''. Can't use memset(0) since some |
a8cf2722 AC |
160 | default values are not zero. "fill" takes all available |
161 | information and fills in any unspecified fields. */ | |
162 | ||
fb6ecb0f | 163 | extern void gdbarch_info_init (struct gdbarch_info *info); |
a8cf2722 AC |
164 | extern void gdbarch_info_fill (struct gdbarch *gdbarch, |
165 | struct gdbarch_info *info); | |
fb6ecb0f | 166 | |
100bcc3f | 167 | /* Similar to init, but this time fill in the blanks. Information is |
bf922ad9 AC |
168 | obtained from the specified architecture, global "set ..." options, |
169 | and explicitly initialized INFO fields. */ | |
170 | extern void gdbarch_info_fill (struct gdbarch *gdbarch, | |
171 | struct gdbarch_info *info); | |
172 | ||
2b026650 MK |
173 | /* Return the architecture for ABFD. If no suitable architecture |
174 | could be find, return NULL. */ | |
175 | ||
176 | extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); | |
177 | ||
c0e8c252 | 178 | #endif |