[deliverable/binutils-gdb.git] / gdb / arch-utils.h

/* Dynamic architecture support for GDB, the GNU debugger.

   Copyright (C) 1998-2021 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef ARCH_UTILS_H
#define ARCH_UTILS_H

#include "gdbarch.h"

struct frame_info;
struct minimal_symbol;
struct type;
struct gdbarch_info;
struct dwarf2_frame_state;

template <size_t bp_size, const gdb_byte *break_insn>
struct bp_manipulation
{
  static int
  kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
  {
    return bp_size;
  }

  static const gdb_byte *
  bp_from_kind (struct gdbarch *gdbarch, int kind, int *size)
  {
    *size = kind;
    return break_insn;
  }
};

template <size_t bp_size,
	  const gdb_byte *break_insn_little,
	  const gdb_byte *break_insn_big>
struct bp_manipulation_endian
{
  static int
  kind_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr)
  {
    return bp_size;
  }

  static const gdb_byte *
  bp_from_kind (struct gdbarch *gdbarch, int kind, int *size)
  {
    *size = kind;
    if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
      return break_insn_big;
    else
      return break_insn_little;
  }
};

#define BP_MANIPULATION(BREAK_INSN) \
  bp_manipulation<sizeof (BREAK_INSN), BREAK_INSN>

#define BP_MANIPULATION_ENDIAN(BREAK_INSN_LITTLE, BREAK_INSN_BIG) \
  bp_manipulation_endian<sizeof (BREAK_INSN_LITTLE),		  \
  BREAK_INSN_LITTLE, BREAK_INSN_BIG>

/* Default implementation of gdbarch_displaced_hw_singlestep.  */
extern bool default_displaced_step_hw_singlestep (struct gdbarch *);

/* Possible value for gdbarch_displaced_step_location:
   Place displaced instructions at the program's entry point,
   leaving space for inferior function call return breakpoints.  */
extern CORE_ADDR displaced_step_at_entry_point (struct gdbarch *gdbarch);

/* 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);

/* Identity functions on a CORE_ADDR.  Just return the "addr".  */

extern CORE_ADDR core_addr_identity (struct gdbarch *gdbarch, 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 (struct gdbarch *gdbarch, int reg);

/* Do nothing version of coff_make_msymbol_special.  */

void default_coff_make_msymbol_special (int val, struct minimal_symbol *msym);

/* Do nothing default implementation of gdbarch_make_symbol_special.  */

void default_make_symbol_special (struct symbol *sym, struct objfile *objfile);

/* Do nothing default implementation of gdbarch_adjust_dwarf2_addr.  */

CORE_ADDR default_adjust_dwarf2_addr (CORE_ADDR pc);

/* Do nothing default implementation of gdbarch_adjust_dwarf2_line.  */

CORE_ADDR default_adjust_dwarf2_line (CORE_ADDR addr, int rel);

/* Default DWARF vendor CFI handler.  */

bool default_execute_dwarf_cfa_vendor_op (struct gdbarch *gdbarch, gdb_byte op,
					  struct dwarf2_frame_state *fs);

/* Version of cannot_fetch_register() / cannot_store_register() that
   always fails.  */

int cannot_register_not (struct gdbarch *gdbarch, int regnum);

/* Legacy version of target_virtual_frame_pointer().  Assumes that
   there is an gdbarch_deprecated_fp_regnum and that it is the same, cooked or
   raw.  */

extern gdbarch_virtual_frame_pointer_ftype legacy_virtual_frame_pointer;

/* Default implementation of gdbarch_floatformat_for_type.  */
extern const struct floatformat **
  default_floatformat_for_type (struct gdbarch *gdbarch,
				const char *name, int len);

/* Default implementation of gdbarch_memtag_to_string.  */
extern std::string default_memtag_to_string (struct gdbarch *gdbarch,
					     struct value *tag);

/* Default implementation of gdbarch_tagged_address_p.  */
bool default_tagged_address_p (struct gdbarch *gdbarch, struct value *address);

/* Default implementation of gdbarch_memtag_matches_p.  */
extern bool default_memtag_matches_p (struct gdbarch *gdbarch,
				       struct value *address);

/* Default implementation of gdbarch_set_memtags.  */
bool default_set_memtags (struct gdbarch *gdbarch,
			  struct value *address, size_t length,
			  const gdb::byte_vector &tags,
			  memtag_type tag_type);

/* Default implementation of gdbarch_get_memtag.  */
struct value *default_get_memtag (struct gdbarch *gdbarch,
				  struct value *address,
				  memtag_type tag_type);

extern CORE_ADDR generic_skip_trampoline_code (struct frame_info *frame,
					       CORE_ADDR pc);

extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
					      CORE_ADDR pc);

extern int generic_in_solib_return_trampoline (struct gdbarch *gdbarch,
					       CORE_ADDR pc, const char *name);

extern int generic_stack_frame_destroyed_p (struct gdbarch *gdbarch,
					    CORE_ADDR pc);

extern int default_code_of_frame_writable (struct gdbarch *gdbarch,
					   struct frame_info *frame);

/* By default, registers are not convertible.  */
extern int generic_convert_register_p (struct gdbarch *gdbarch, 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);

int default_remote_register_number (struct gdbarch *gdbarch,
				    int regno);

/* For compatibility with older architectures, returns
   (LEGACY_SIM_REGNO_IGNORE) when the register doesn't have a valid
   name.  */

extern int legacy_register_sim_regno (struct gdbarch *gdbarch, 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);

/* Similar to init, but this time fill in the blanks.  Information is
   obtained from the global "set ..." options and explicitly
   initialized INFO fields.  */
extern void gdbarch_info_fill (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);

/* Return "current" architecture.  If the target is running, this is the
   architecture of the selected frame.  Otherwise, the "current" architecture
   defaults to the target architecture.

   This function should normally be called solely by the command interpreter
   routines to determine the architecture to execute a command in.  */
extern struct gdbarch *get_current_arch (void);

extern int default_has_shared_address_space (struct gdbarch *);

extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch,
					     CORE_ADDR addr, std::string *msg);

extern const gdb_byte *default_breakpoint_from_pc (struct gdbarch *gdbarch,
						   CORE_ADDR *pcptr,
						   int *lenptr);

extern int default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch,
						       struct regcache *regcache,
						       CORE_ADDR *pcptr);

extern void default_gen_return_address (struct gdbarch *gdbarch,
					struct agent_expr *ax,
					struct axs_value *value,
					CORE_ADDR scope);

extern const char *default_auto_charset (void);
extern const char *default_auto_wide_charset (void);

extern int default_return_in_first_hidden_param_p (struct gdbarch *,
						   struct type *);

extern int default_insn_is_call (struct gdbarch *, CORE_ADDR);
extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR);
extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR);

/* Default implementation of gdbarch_program_breakpoint_here_p.  */
extern bool default_program_breakpoint_here_p (struct gdbarch *gdbarch,
					       CORE_ADDR addr);

/* Do-nothing version of vsyscall_range.  Returns false.  */

extern int default_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range);

/* Default way to advance the PC to the next instruction in order to
   skip a permanent breakpoint.  Increments the PC by the size of a
   software breakpoint instruction, as determined with
   gdbarch_breakpoint_from_pc.  This matches how the breakpoints
   module determines whether a breakpoint is permanent.  */
extern void default_skip_permanent_breakpoint (struct regcache *regcache);

/* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system
   definitions would be dependent on compilation host.  */
#define GDB_MMAP_PROT_READ	0x1	/* Page can be read.  */
#define GDB_MMAP_PROT_WRITE	0x2	/* Page can be written.  */
#define GDB_MMAP_PROT_EXEC	0x4	/* Page can be executed.  */

extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot);
extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size);
extern std::string default_gcc_target_options (struct gdbarch *gdbarch);
extern const char *default_gnu_triplet_regexp (struct gdbarch *gdbarch);
extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch);

extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch,
						struct regcache *regcache,
						CORE_ADDR addr);

extern int default_print_insn (bfd_vma memaddr, disassemble_info *info);

/* Wrapper to gdbarch_skip_prologue, but doesn't throw exception.  Catch
   exception thrown from gdbarch_skip_prologue, and return PC.  */

extern CORE_ADDR gdbarch_skip_prologue_noexcept (gdbarch *gdbarch,
						 CORE_ADDR pc) noexcept;

/* Default implementation of gdbarch_in_indirect_branch_thunk that returns
   false.  */
extern bool default_in_indirect_branch_thunk (gdbarch *gdbarch,
					      CORE_ADDR pc);

/* Default implementation of gdbarch type_align method.  */
extern ULONGEST default_type_align (struct gdbarch *gdbarch,
				    struct type *type);

/* Default implementation of gdbarch get_pc_address_flags method.  */
extern std::string default_get_pc_address_flags (frame_info *frame,
						 CORE_ADDR pc);

/* Default implementation of gdbarch read_core_file_mappings method.  */
extern void default_read_core_file_mappings (struct gdbarch *gdbarch,
					     struct bfd *cbfd,
					     gdb::function_view<void (ULONGEST count)>
					       pre_loop_cb,
					     gdb::function_view<void (int num,
								      ULONGEST start,
								      ULONGEST end,
								      ULONGEST file_ofs,
								      const char *filename)>
					       loop_cb);
#endif /* ARCH_UTILS_H */
Commit	Line	Data
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
1a5c2598 TT	21	#define ARCH_UTILS_H
c0e8c252	22
0d12e84c TT	23	#include "gdbarch.h"
0d12e84c TT	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,
52f729a7 UW	158	CORE_ADDR pc);
bdcd319a	159
4c8c40e6 MK	160	extern CORE_ADDR generic_skip_solib_resolver (struct gdbarch *gdbarch,
4c8c40e6 MK	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,
c9cf6e20 MG	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,
76a8ddb9 UW	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
100bcc3f	199	/* Similar to init, but this time fill in the blanks. Information is
7a107747 DJ	200	obtained from the global "set ..." options and explicitly
	201	initialized INFO fields. */
	202	extern void gdbarch_info_fill (struct gdbarch_info *info);
bf922ad9	203
2b026650 MK	204	/* Return the architecture for ABFD. If no suitable architecture
	205	could be find, return NULL. */
	206
	207	extern struct gdbarch gdbarch_from_bfd (bfd abfd);
	208
e17c207e UW	209	/* Return "current" architecture. If the target is running, this is the
	210	architecture of the selected frame. Otherwise, the "current" architecture
	211	defaults to the target architecture.
	212
	213	This function should normally be called solely by the command interpreter
	214	routines to determine the architecture to execute a command in. */
	215	extern struct gdbarch *get_current_arch (void);
	216
6c95b8df PA	217	extern int default_has_shared_address_space (struct gdbarch *);
6c95b8df PA	218
7a697b8d	219	extern int default_fast_tracepoint_valid_at (struct gdbarch *gdbarch,
281d762b	220	CORE_ADDR addr, std::string *msg);
7a697b8d	221
22f13eb8 YQ	222	extern const gdb_byte default_breakpoint_from_pc (struct gdbarch gdbarch,
	223	CORE_ADDR *pcptr,
	224	int *lenptr);
	225
833b7ab5 YQ	226	extern int default_breakpoint_kind_from_current_state (struct gdbarch *gdbarch,
	227	struct regcache *regcache,
	228	CORE_ADDR *pcptr);
	229
6710bf39 SS	230	extern void default_gen_return_address (struct gdbarch *gdbarch,
	231	struct agent_expr *ax,
	232	struct axs_value *value,
	233	CORE_ADDR scope);
	234
f870a310 TT	235	extern const char *default_auto_charset (void);
	236	extern const char *default_auto_wide_charset (void);
	237
18648a37 YQ	238	extern int default_return_in_first_hidden_param_p (struct gdbarch *,
18648a37 YQ	239	struct type *);
c2170eef MM	240
	241	extern int default_insn_is_call (struct gdbarch *, CORE_ADDR);
	242	extern int default_insn_is_ret (struct gdbarch *, CORE_ADDR);
	243	extern int default_insn_is_jump (struct gdbarch *, CORE_ADDR);
3437254d	244
5133a315 LM	245	/* Default implementation of gdbarch_program_breakpoint_here_p. */
	246	extern bool default_program_breakpoint_here_p (struct gdbarch *gdbarch,
	247	CORE_ADDR addr);
	248
3437254d PA	249	/* Do-nothing version of vsyscall_range. Returns false. */
	250
	251	extern int default_vsyscall_range (struct gdbarch gdbarch, struct mem_range range);
ae9bb220 PA	252
	253	/* Default way to advance the PC to the next instruction in order to
	254	skip a permanent breakpoint. Increments the PC by the size of a
	255	software breakpoint instruction, as determined with
	256	gdbarch_breakpoint_from_pc. This matches how the breakpoints
	257	module determines whether a breakpoint is permanent. */
	258	extern void default_skip_permanent_breakpoint (struct regcache *regcache);
	259
f208eee0 JK	260	/* Symbols for gdbarch_infcall_mmap; their Linux PROT_* system
	261	definitions would be dependent on compilation host. */
	262	#define GDB_MMAP_PROT_READ 0x1 /* Page can be read. */
	263	#define GDB_MMAP_PROT_WRITE 0x2 /* Page can be written. */
	264	#define GDB_MMAP_PROT_EXEC 0x4 /* Page can be executed. */
	265
	266	extern CORE_ADDR default_infcall_mmap (CORE_ADDR size, unsigned prot);
7f361056	267	extern void default_infcall_munmap (CORE_ADDR addr, CORE_ADDR size);
953cff56	268	extern std::string default_gcc_target_options (struct gdbarch *gdbarch);
ac04f72b	269	extern const char default_gnu_triplet_regexp (struct gdbarch gdbarch);
3374165f	270	extern int default_addressable_memory_unit_size (struct gdbarch *gdbarch);
f208eee0	271
5f034a78 MK	272	extern void default_guess_tracepoint_registers (struct gdbarch *gdbarch,
	273	struct regcache *regcache,
	274	CORE_ADDR addr);
	275
39503f82 YQ	276	extern int default_print_insn (bfd_vma memaddr, disassemble_info *info);
39503f82 YQ	277
46a62268 YQ	278	/* Wrapper to gdbarch_skip_prologue, but doesn't throw exception. Catch
	279	exception thrown from gdbarch_skip_prologue, and return PC. */
	280
	281	extern CORE_ADDR gdbarch_skip_prologue_noexcept (gdbarch *gdbarch,
	282	CORE_ADDR pc) noexcept;
	283
1d509aa6 MM	284	/* Default implementation of gdbarch_in_indirect_branch_thunk that returns
	285	false. */
	286	extern bool default_in_indirect_branch_thunk (gdbarch *gdbarch,
	287	CORE_ADDR pc);
	288
2b4424c3 TT	289	/* Default implementation of gdbarch type_align method. */
	290	extern ULONGEST default_type_align (struct gdbarch *gdbarch,
	291	struct type *type);
	292
aa7ca1bb AH	293	/* Default implementation of gdbarch get_pc_address_flags method. */
	294	extern std::string default_get_pc_address_flags (frame_info *frame,
	295	CORE_ADDR pc);
	296
7e183d27 KB	297	/* Default implementation of gdbarch read_core_file_mappings method. */
	298	extern void default_read_core_file_mappings (struct gdbarch *gdbarch,
	299	struct bfd *cbfd,
	300	gdb::function_view<void (ULONGEST count)>
	301	pre_loop_cb,
	302	gdb::function_view<void (int num,
	303	ULONGEST start,
	304	ULONGEST end,
	305	ULONGEST file_ofs,
70125a45	306	const char *filename)>
7e183d27	307	loop_cb);
1a5c2598	308	#endif /* ARCH_UTILS_H */