mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
280 lines
9.7 KiB
C++
280 lines
9.7 KiB
C++
/* Dynamic architecture support for GDB, the GNU debugger.
|
|
|
|
Copyright (C) 1998-2020 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 int
|
|
default_displaced_step_hw_singlestep (struct gdbarch *,
|
|
struct displaced_step_closure *);
|
|
|
|
/* 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);
|
|
|
|
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);
|
|
|
|
/* Initialize a ``struct info''. Can't use memset(0) since some
|
|
default values are not zero. "fill" takes all available
|
|
information and fills in any unspecified fields. */
|
|
|
|
extern void gdbarch_info_init (struct gdbarch_info *info);
|
|
|
|
/* 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);
|
|
|
|
/* 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);
|
|
|
|
#endif /* ARCH_UTILS_H */
|