Commit | Line | Data |
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c0e8c252 | 1 | /* Dynamic architecture support for GDB, the GNU debugger. |
d7bd68ca | 2 | |
3666a048 | 3 | Copyright (C) 1998-2021 Free Software Foundation, Inc. |
c0e8c252 AC |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 9 | the Free Software Foundation; either version 3 of the License, or |
c0e8c252 AC |
10 | (at your option) any later version. |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c0e8c252 | 19 | |
1a5c2598 TT |
20 | #ifndef ARCH_UTILS_H |
21 | #define ARCH_UTILS_H | |
c0e8c252 | 22 | |
0d12e84c TT |
23 | #include "gdbarch.h" |
24 | ||
da3331ec AC |
25 | struct frame_info; |
26 | struct minimal_symbol; | |
27 | struct type; | |
28 | struct gdbarch_info; | |
b41c5a85 | 29 | struct dwarf2_frame_state; |
da3331ec | 30 | |
04180708 YQ |
31 | template <size_t bp_size, const gdb_byte *break_insn> |
32 | struct bp_manipulation | |
33 | { | |
34 | static int | |
35 | kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) | |
36 | { | |
37 | return bp_size; | |
22f13eb8 | 38 | } |
598cc9dc | 39 | |
04180708 YQ |
40 | static const gdb_byte * |
41 | bp_from_kind (struct gdbarch *gdbarch, int kind, int *size) | |
42 | { | |
43 | *size = kind; | |
44 | return break_insn; | |
22f13eb8 | 45 | } |
04180708 YQ |
46 | }; |
47 | ||
48 | template <size_t bp_size, | |
49 | const gdb_byte *break_insn_little, | |
50 | const gdb_byte *break_insn_big> | |
51 | struct bp_manipulation_endian | |
52 | { | |
53 | static int | |
54 | kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr) | |
55 | { | |
56 | return bp_size; | |
57 | } | |
58 | ||
59 | static const gdb_byte * | |
60 | bp_from_kind (struct gdbarch *gdbarch, int kind, int *size) | |
61 | { | |
62 | *size = kind; | |
63 | if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG) | |
64 | return break_insn_big; | |
65 | else | |
66 | return break_insn_little; | |
67 | } | |
68 | }; | |
69 | ||
70 | #define BP_MANIPULATION(BREAK_INSN) \ | |
71 | bp_manipulation<sizeof (BREAK_INSN), BREAK_INSN> | |
72 | ||
73 | #define BP_MANIPULATION_ENDIAN(BREAK_INSN_LITTLE, BREAK_INSN_BIG) \ | |
74 | bp_manipulation_endian<sizeof (BREAK_INSN_LITTLE), \ | |
75 | BREAK_INSN_LITTLE, BREAK_INSN_BIG> | |
d19280ad | 76 | |
99e40580 | 77 | /* Default implementation of gdbarch_displaced_hw_singlestep. */ |
40a53766 | 78 | extern bool default_displaced_step_hw_singlestep (struct gdbarch *); |
99e40580 | 79 | |
237fc4c9 PA |
80 | /* Possible value for gdbarch_displaced_step_location: |
81 | Place displaced instructions at the program's entry point, | |
82 | leaving space for inferior function call return breakpoints. */ | |
83 | extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch); | |
84 | ||
0e2de366 | 85 | /* The only possible cases for inner_than. */ |
3339cf8b AC |
86 | extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs); |
87 | extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); | |
88 | ||
e2d0e7eb | 89 | /* Identity functions on a CORE_ADDR. Just return the "addr". */ |
f517ea4e | 90 | |
24568a2c | 91 | extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr); |
e2d0e7eb | 92 | extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; |
f517ea4e | 93 | |
0e2de366 | 94 | /* No-op conversion of reg to regnum. */ |
88c72b7d | 95 | |
d3f73121 | 96 | extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg); |
88c72b7d | 97 | |
0e2de366 | 98 | /* Do nothing version of coff_make_msymbol_special. */ |
a2cf933a EZ |
99 | |
100 | void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); | |
101 | ||
3e29f34a MR |
102 | /* Do nothing default implementation of gdbarch_make_symbol_special. */ |
103 | ||
104 | void default_make_symbol_special (struct symbol *sym, struct objfile *objfile); | |
105 | ||
106 | /* Do nothing default implementation of gdbarch_adjust_dwarf2_addr. */ | |
107 | ||
108 | CORE_ADDR default_adjust_dwarf2_addr (CORE_ADDR pc); | |
109 | ||
110 | /* Do nothing default implementation of gdbarch_adjust_dwarf2_line. */ | |
111 | ||
112 | CORE_ADDR default_adjust_dwarf2_line (CORE_ADDR addr, int rel); | |
113 | ||
b41c5a85 JW |
114 | /* Default DWARF vendor CFI handler. */ |
115 | ||
116 | bool default_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op, | |
117 | struct dwarf2_frame_state *fs); | |
118 | ||
01fb7433 | 119 | /* Version of cannot_fetch_register() / cannot_store_register() that |
0e2de366 | 120 | always fails. */ |
01fb7433 | 121 | |
64a3914f | 122 | int cannot_register_not (struct gdbarch *gdbarch, int regnum); |
01fb7433 | 123 | |
39d4ef09 | 124 | /* Legacy version of target_virtual_frame_pointer(). Assumes that |
064f5156 | 125 | there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or |
0ba6dca9 | 126 | raw. */ |
39d4ef09 AC |
127 | |
128 | extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; | |
129 | ||
9b790ce7 UW |
130 | /* Default implementation of gdbarch_floatformat_for_type. */ |
131 | extern const struct floatformat ** | |
132 | default_floatformat_for_type (struct gdbarch *gdbarch, | |
133 | const char *name, int len); | |
134 | ||
c193949e LM |
135 | /* Default implementation of gdbarch_memtag_to_string. */ |
136 | extern std::string default_memtag_to_string (struct gdbarch *gdbarch, | |
137 | struct value *tag); | |
138 | ||
139 | /* Default implementation of gdbarch_tagged_address_p. */ | |
140 | bool default_tagged_address_p (struct gdbarch *gdbarch, struct value *address); | |
141 | ||
142 | /* Default implementation of gdbarch_memtag_matches_p. */ | |
143 | extern bool default_memtag_matches_p (struct gdbarch *gdbarch, | |
144 | struct value *address); | |
145 | ||
146 | /* Default implementation of gdbarch_set_memtags. */ | |
147 | bool default_set_memtags (struct gdbarch *gdbarch, | |
148 | struct value *address, size_t length, | |
149 | const gdb::byte_vector &tags, | |
150 | memtag_type tag_type); | |
151 | ||
152 | /* Default implementation of gdbarch_get_memtag. */ | |
153 | struct value *default_get_memtag (struct gdbarch *gdbarch, | |
154 | struct value *address, | |
155 | memtag_type tag_type); | |
156 | ||
52f729a7 UW |
157 | extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame, |
158 | CORE_ADDR pc); | |
bdcd319a | 159 | |
4c8c40e6 MK |
160 | extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, |
161 | CORE_ADDR pc); | |
dea0c52f | 162 | |
e17a4113 | 163 | extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch, |
2c02bd72 | 164 | CORE_ADDR pc, const char *name); |
d50355b6 | 165 | |
c9cf6e20 MG |
166 | extern int generic_stack_frame_destroyed_p (struct gdbarch *gdbarch, |
167 | CORE_ADDR pc); | |
c12260ac | 168 | |
7eb89530 YQ |
169 | extern int default_code_of_frame_writable (struct gdbarch *gdbarch, |
170 | struct frame_info *frame); | |
171 | ||
a1f4a1b6 | 172 | /* By default, registers are not convertible. */ |
76a8ddb9 UW |
173 | extern int generic_convert_register_p (struct gdbarch *gdbarch, int regnum, |
174 | struct type *type); | |
13d01224 | 175 | |
192cb3d4 MK |
176 | extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, |
177 | struct type *type); | |
178 | ||
3ca64954 RC |
179 | extern int generic_instruction_nullified (struct gdbarch *gdbarch, |
180 | struct regcache *regcache); | |
181 | ||
123dc839 DJ |
182 | int default_remote_register_number (struct gdbarch *gdbarch, |
183 | int regno); | |
184 | ||
4182591f AC |
185 | /* For compatibility with older architectures, returns |
186 | (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid | |
187 | name. */ | |
188 | ||
e7faf938 | 189 | extern int legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum); |
4182591f | 190 | |
b6d373df DJ |
191 | /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte |
192 | order was explicitly selected. */ | |
193 | extern enum bfd_endian selected_byte_order (void); | |
194 | ||
a8cf2722 AC |
195 | /* Return the selected architecture's name, or NULL if no architecture |
196 | was explicitly selected. */ | |
197 | extern const char *selected_architecture_name (void); | |
198 | ||
fb6ecb0f | 199 | /* Initialize a ``struct info''. Can't use memset(0) since some |
a8cf2722 AC |
200 | default values are not zero. "fill" takes all available |
201 | information and fills in any unspecified fields. */ | |
202 | ||
fb6ecb0f AC |
203 | extern void gdbarch_info_init (struct gdbarch_info *info); |
204 | ||
100bcc3f | 205 | /* Similar to init, but this time fill in the blanks. Information is |
7a107747 DJ |
206 | obtained from the global "set ..." options and explicitly |
207 | initialized INFO fields. */ | |
208 | extern void gdbarch_info_fill (struct gdbarch_info *info); | |
bf922ad9 | 209 | |
2b026650 MK |
210 | /* Return the architecture for ABFD. If no suitable architecture |
211 | could be find, return NULL. */ | |
212 | ||
213 | extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); | |
214 | ||
e17c207e UW |
215 | /* Return "current" architecture. If the target is running, this is the |
216 | architecture of the selected frame. Otherwise, the "current" architecture | |
217 | defaults to the target architecture. | |
218 | ||
219 | This function should normally be called solely by the command interpreter | |
220 | routines to determine the architecture to execute a command in. */ | |
221 | extern struct gdbarch *get_current_arch (void); | |
222 | ||
6c95b8df PA |
223 | extern int default_has_shared_address_space (struct gdbarch *); |
224 | ||
7a697b8d | 225 | extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, |
281d762b | 226 | CORE_ADDR addr, std::string *msg); |
7a697b8d | 227 | |
22f13eb8 YQ |
228 | extern const gdb_byte *default_breakpoint_from_pc (struct gdbarch *gdbarch, |
229 | CORE_ADDR *pcptr, | |
230 | int *lenptr); | |
231 | ||
833b7ab5 YQ |
232 | extern int default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch, |
233 | struct regcache *regcache, | |
234 | CORE_ADDR *pcptr); | |
235 | ||
6710bf39 SS |
236 | extern void default_gen_return_address (struct gdbarch *gdbarch, |
237 | struct agent_expr *ax, | |
238 | struct axs_value *value, | |
239 | CORE_ADDR scope); | |
240 | ||
f870a310 TT |
241 | extern const char *default_auto_charset (void); |
242 | extern const char *default_auto_wide_charset (void); | |
243 | ||
18648a37 YQ |
244 | extern int default_return_in_first_hidden_param_p (struct gdbarch *, |
245 | struct type *); | |
c2170eef MM |
246 | |
247 | extern int default_insn_is_call (struct gdbarch *, CORE_ADDR); | |
248 | extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR); | |
249 | extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR); | |
3437254d | 250 | |
5133a315 LM |
251 | /* Default implementation of gdbarch_program_breakpoint_here_p. */ |
252 | extern bool default_program_breakpoint_here_p (struct gdbarch *gdbarch, | |
253 | CORE_ADDR addr); | |
254 | ||
3437254d PA |
255 | /* Do-nothing version of vsyscall_range. Returns false. */ |
256 | ||
257 | extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); | |
ae9bb220 PA |
258 | |
259 | /* Default way to advance the PC to the next instruction in order to | |
260 | skip a permanent breakpoint. Increments the PC by the size of a | |
261 | software breakpoint instruction, as determined with | |
262 | gdbarch_breakpoint_from_pc. This matches how the breakpoints | |
263 | module determines whether a breakpoint is permanent. */ | |
264 | extern void default_skip_permanent_breakpoint (struct regcache *regcache); | |
265 | ||
f208eee0 JK |
266 | /* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system |
267 | definitions would be dependent on compilation host. */ | |
268 | #define GDB_MMAP_PROT_READ 0x1 /* Page can be read. */ | |
269 | #define GDB_MMAP_PROT_WRITE 0x2 /* Page can be written. */ | |
270 | #define GDB_MMAP_PROT_EXEC 0x4 /* Page can be executed. */ | |
271 | ||
272 | extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot); | |
7f361056 | 273 | extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size); |
953cff56 | 274 | extern std::string default_gcc_target_options (struct gdbarch *gdbarch); |
ac04f72b | 275 | extern const char *default_gnu_triplet_regexp (struct gdbarch *gdbarch); |
3374165f | 276 | extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch); |
f208eee0 | 277 | |
5f034a78 MK |
278 | extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch, |
279 | struct regcache *regcache, | |
280 | CORE_ADDR addr); | |
281 | ||
39503f82 YQ |
282 | extern int default_print_insn (bfd_vma memaddr, disassemble_info *info); |
283 | ||
46a62268 YQ |
284 | /* Wrapper to gdbarch_skip_prologue, but doesn't throw exception. Catch |
285 | exception thrown from gdbarch_skip_prologue, and return PC. */ | |
286 | ||
287 | extern CORE_ADDR gdbarch_skip_prologue_noexcept (gdbarch *gdbarch, | |
288 | CORE_ADDR pc) noexcept; | |
289 | ||
1d509aa6 MM |
290 | /* Default implementation of gdbarch_in_indirect_branch_thunk that returns |
291 | false. */ | |
292 | extern bool default_in_indirect_branch_thunk (gdbarch *gdbarch, | |
293 | CORE_ADDR pc); | |
294 | ||
2b4424c3 TT |
295 | /* Default implementation of gdbarch type_align method. */ |
296 | extern ULONGEST default_type_align (struct gdbarch *gdbarch, | |
297 | struct type *type); | |
298 | ||
aa7ca1bb AH |
299 | /* Default implementation of gdbarch get_pc_address_flags method. */ |
300 | extern std::string default_get_pc_address_flags (frame_info *frame, | |
301 | CORE_ADDR pc); | |
302 | ||
7e183d27 KB |
303 | /* Default implementation of gdbarch read_core_file_mappings method. */ |
304 | extern void default_read_core_file_mappings (struct gdbarch *gdbarch, | |
305 | struct bfd *cbfd, | |
306 | gdb::function_view<void (ULONGEST count)> | |
307 | pre_loop_cb, | |
308 | gdb::function_view<void (int num, | |
309 | ULONGEST start, | |
310 | ULONGEST end, | |
311 | ULONGEST file_ofs, | |
70125a45 | 312 | const char *filename)> |
7e183d27 | 313 | loop_cb); |
1a5c2598 | 314 | #endif /* ARCH_UTILS_H */ |