Commit | Line | Data |
---|---|---|
c0e8c252 | 1 | /* Dynamic architecture support for GDB, the GNU debugger. |
d7bd68ca | 2 | |
618f726f | 3 | Copyright (C) 1998-2016 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 AC |
19 | |
20 | #ifndef GDBARCH_UTILS_H | |
21 | #define GDBARCH_UTILS_H | |
22 | ||
da3331ec AC |
23 | struct gdbarch; |
24 | struct frame_info; | |
25 | struct minimal_symbol; | |
26 | struct type; | |
27 | struct gdbarch_info; | |
28 | ||
598cc9dc YQ |
29 | #define GDBARCH_BREAKPOINT_MANIPULATION(ARCH,BREAK_INSN) \ |
30 | static const gdb_byte * \ | |
31 | ARCH##_breakpoint_from_pc (struct gdbarch *gdbarch, \ | |
32 | CORE_ADDR *pcptr, \ | |
33 | int *lenptr) \ | |
34 | { \ | |
35 | *lenptr = sizeof (BREAK_INSN); \ | |
36 | return BREAK_INSN; \ | |
37 | } | |
38 | ||
39 | #define SET_GDBARCH_BREAKPOINT_MANIPULATION(ARCH) \ | |
40 | set_gdbarch_breakpoint_from_pc (gdbarch, ARCH##_breakpoint_from_pc) | |
41 | ||
237fc4c9 PA |
42 | /* An implementation of gdbarch_displaced_step_copy_insn for |
43 | processors that don't need to modify the instruction before | |
44 | single-stepping the displaced copy. | |
45 | ||
46 | Simply copy gdbarch_max_insn_length (ARCH) bytes from FROM to TO. | |
47 | The closure is an array of that many bytes containing the | |
48 | instruction's bytes, allocated with xmalloc. */ | |
49 | extern struct displaced_step_closure * | |
50 | simple_displaced_step_copy_insn (struct gdbarch *gdbarch, | |
51 | CORE_ADDR from, CORE_ADDR to, | |
52 | struct regcache *regs); | |
53 | ||
54 | /* Simple implementation of gdbarch_displaced_step_free_closure: Call | |
55 | xfree. | |
56 | This is appropriate for use with simple_displaced_step_copy_insn. */ | |
57 | extern void | |
58 | simple_displaced_step_free_closure (struct gdbarch *gdbarch, | |
59 | struct displaced_step_closure *closure); | |
60 | ||
99e40580 UW |
61 | /* Default implementation of gdbarch_displaced_hw_singlestep. */ |
62 | extern int | |
3e43a32a MS |
63 | default_displaced_step_hw_singlestep (struct gdbarch *, |
64 | struct displaced_step_closure *); | |
99e40580 | 65 | |
237fc4c9 PA |
66 | /* Possible value for gdbarch_displaced_step_location: |
67 | Place displaced instructions at the program's entry point, | |
68 | leaving space for inferior function call return breakpoints. */ | |
69 | extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch); | |
70 | ||
0e2de366 | 71 | /* The only possible cases for inner_than. */ |
3339cf8b AC |
72 | extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs); |
73 | extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs); | |
74 | ||
e2d0e7eb | 75 | /* Identity functions on a CORE_ADDR. Just return the "addr". */ |
f517ea4e | 76 | |
24568a2c | 77 | extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, CORE_ADDR addr); |
e2d0e7eb | 78 | extern gdbarch_convert_from_func_ptr_addr_ftype convert_from_func_ptr_addr_identity; |
f517ea4e | 79 | |
0e2de366 | 80 | /* No-op conversion of reg to regnum. */ |
88c72b7d | 81 | |
d3f73121 | 82 | extern int no_op_reg_to_regnum (struct gdbarch *gdbarch, int reg); |
88c72b7d | 83 | |
0e2de366 | 84 | /* Do nothing version of coff_make_msymbol_special. */ |
a2cf933a EZ |
85 | |
86 | void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym); | |
87 | ||
3e29f34a MR |
88 | /* Do nothing default implementation of gdbarch_make_symbol_special. */ |
89 | ||
90 | void default_make_symbol_special (struct symbol *sym, struct objfile *objfile); | |
91 | ||
92 | /* Do nothing default implementation of gdbarch_adjust_dwarf2_addr. */ | |
93 | ||
94 | CORE_ADDR default_adjust_dwarf2_addr (CORE_ADDR pc); | |
95 | ||
96 | /* Do nothing default implementation of gdbarch_adjust_dwarf2_line. */ | |
97 | ||
98 | CORE_ADDR default_adjust_dwarf2_line (CORE_ADDR addr, int rel); | |
99 | ||
01fb7433 | 100 | /* Version of cannot_fetch_register() / cannot_store_register() that |
0e2de366 | 101 | always fails. */ |
01fb7433 | 102 | |
64a3914f | 103 | int cannot_register_not (struct gdbarch *gdbarch, int regnum); |
01fb7433 | 104 | |
39d4ef09 | 105 | /* Legacy version of target_virtual_frame_pointer(). Assumes that |
064f5156 | 106 | there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or |
0ba6dca9 | 107 | raw. */ |
39d4ef09 AC |
108 | |
109 | extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer; | |
110 | ||
9b790ce7 UW |
111 | /* Default implementation of gdbarch_floatformat_for_type. */ |
112 | extern const struct floatformat ** | |
113 | default_floatformat_for_type (struct gdbarch *gdbarch, | |
114 | const char *name, int len); | |
115 | ||
52f729a7 UW |
116 | extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame, |
117 | CORE_ADDR pc); | |
bdcd319a | 118 | |
4c8c40e6 MK |
119 | extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch, |
120 | CORE_ADDR pc); | |
dea0c52f | 121 | |
e17a4113 | 122 | extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch, |
2c02bd72 | 123 | CORE_ADDR pc, const char *name); |
d50355b6 | 124 | |
c9cf6e20 MG |
125 | extern int generic_stack_frame_destroyed_p (struct gdbarch *gdbarch, |
126 | CORE_ADDR pc); | |
c12260ac | 127 | |
7eb89530 YQ |
128 | extern int default_code_of_frame_writable (struct gdbarch *gdbarch, |
129 | struct frame_info *frame); | |
130 | ||
a1f4a1b6 | 131 | /* By default, registers are not convertible. */ |
76a8ddb9 UW |
132 | extern int generic_convert_register_p (struct gdbarch *gdbarch, int regnum, |
133 | struct type *type); | |
13d01224 | 134 | |
192cb3d4 MK |
135 | extern int default_stabs_argument_has_addr (struct gdbarch *gdbarch, |
136 | struct type *type); | |
137 | ||
3ca64954 RC |
138 | extern int generic_instruction_nullified (struct gdbarch *gdbarch, |
139 | struct regcache *regcache); | |
140 | ||
123dc839 DJ |
141 | int default_remote_register_number (struct gdbarch *gdbarch, |
142 | int regno); | |
143 | ||
4182591f AC |
144 | /* For compatibility with older architectures, returns |
145 | (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid | |
146 | name. */ | |
147 | ||
e7faf938 | 148 | extern int legacy_register_sim_regno (struct gdbarch *gdbarch, int regnum); |
4182591f | 149 | |
b6d373df DJ |
150 | /* Return the selected byte order, or BFD_ENDIAN_UNKNOWN if no byte |
151 | order was explicitly selected. */ | |
152 | extern enum bfd_endian selected_byte_order (void); | |
153 | ||
a8cf2722 AC |
154 | /* Return the selected architecture's name, or NULL if no architecture |
155 | was explicitly selected. */ | |
156 | extern const char *selected_architecture_name (void); | |
157 | ||
fb6ecb0f | 158 | /* Initialize a ``struct info''. Can't use memset(0) since some |
a8cf2722 AC |
159 | default values are not zero. "fill" takes all available |
160 | information and fills in any unspecified fields. */ | |
161 | ||
fb6ecb0f AC |
162 | extern void gdbarch_info_init (struct gdbarch_info *info); |
163 | ||
100bcc3f | 164 | /* Similar to init, but this time fill in the blanks. Information is |
7a107747 DJ |
165 | obtained from the global "set ..." options and explicitly |
166 | initialized INFO fields. */ | |
167 | extern void gdbarch_info_fill (struct gdbarch_info *info); | |
bf922ad9 | 168 | |
2b026650 MK |
169 | /* Return the architecture for ABFD. If no suitable architecture |
170 | could be find, return NULL. */ | |
171 | ||
172 | extern struct gdbarch *gdbarch_from_bfd (bfd *abfd); | |
173 | ||
e17c207e UW |
174 | /* Return "current" architecture. If the target is running, this is the |
175 | architecture of the selected frame. Otherwise, the "current" architecture | |
176 | defaults to the target architecture. | |
177 | ||
178 | This function should normally be called solely by the command interpreter | |
179 | routines to determine the architecture to execute a command in. */ | |
180 | extern struct gdbarch *get_current_arch (void); | |
181 | ||
6c95b8df PA |
182 | extern int default_has_shared_address_space (struct gdbarch *); |
183 | ||
7a697b8d | 184 | extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch, |
6b940e6a | 185 | CORE_ADDR addr, char **msg); |
7a697b8d | 186 | |
a1dcb23a DJ |
187 | extern void default_remote_breakpoint_from_pc (struct gdbarch *, |
188 | CORE_ADDR *pcptr, int *kindptr); | |
189 | ||
6710bf39 SS |
190 | extern void default_gen_return_address (struct gdbarch *gdbarch, |
191 | struct agent_expr *ax, | |
192 | struct axs_value *value, | |
193 | CORE_ADDR scope); | |
194 | ||
f870a310 TT |
195 | extern const char *default_auto_charset (void); |
196 | extern const char *default_auto_wide_charset (void); | |
197 | ||
18648a37 YQ |
198 | extern int default_return_in_first_hidden_param_p (struct gdbarch *, |
199 | struct type *); | |
c2170eef MM |
200 | |
201 | extern int default_insn_is_call (struct gdbarch *, CORE_ADDR); | |
202 | extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR); | |
203 | extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR); | |
3437254d PA |
204 | |
205 | /* Do-nothing version of vsyscall_range. Returns false. */ | |
206 | ||
207 | extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range); | |
ae9bb220 PA |
208 | |
209 | /* Default way to advance the PC to the next instruction in order to | |
210 | skip a permanent breakpoint. Increments the PC by the size of a | |
211 | software breakpoint instruction, as determined with | |
212 | gdbarch_breakpoint_from_pc. This matches how the breakpoints | |
213 | module determines whether a breakpoint is permanent. */ | |
214 | extern void default_skip_permanent_breakpoint (struct regcache *regcache); | |
215 | ||
f208eee0 JK |
216 | /* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system |
217 | definitions would be dependent on compilation host. */ | |
218 | #define GDB_MMAP_PROT_READ 0x1 /* Page can be read. */ | |
219 | #define GDB_MMAP_PROT_WRITE 0x2 /* Page can be written. */ | |
220 | #define GDB_MMAP_PROT_EXEC 0x4 /* Page can be executed. */ | |
221 | ||
222 | extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot); | |
7f361056 | 223 | extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size); |
f208eee0 | 224 | extern char *default_gcc_target_options (struct gdbarch *gdbarch); |
ac04f72b | 225 | extern const char *default_gnu_triplet_regexp (struct gdbarch *gdbarch); |
3374165f | 226 | extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch); |
f208eee0 | 227 | |
5f034a78 MK |
228 | extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch, |
229 | struct regcache *regcache, | |
230 | CORE_ADDR addr); | |
231 | ||
c0e8c252 | 232 | #endif |