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/* Target-dependent code for GNU/Linux, architecture independent.
Copyright (C) 2009-2024 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 LINUX_TDEP_H
#define LINUX_TDEP_H
#include "bfd.h"
#include "displaced-stepping.h"
struct inferior;
struct regcache;
/* Enum used to define the extra fields of the siginfo type used by an
architecture. */
enum linux_siginfo_extra_field_values
{
/* Add bound fields into the segmentation fault field. */
LINUX_SIGINFO_FIELD_ADDR_BND = 1
};
/* Defines a type for the values defined in linux_siginfo_extra_field_values. */
DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values,
linux_siginfo_extra_fields);
/* This function is suitable for architectures that
extend/override the standard siginfo in a specific way. */
struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
linux_siginfo_extra_fields);
/* Return true if ADDRESS is within the boundaries of a page mapped with
memory tagging protection. */
bool linux_address_in_memtag_page (CORE_ADDR address);
typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
ptid_t,
bfd *, char *, int *,
enum gdb_signal);
extern enum gdb_signal linux_gdb_signal_from_target (struct gdbarch *gdbarch,
int signal);
extern int linux_gdb_signal_to_target (struct gdbarch *gdbarch,
enum gdb_signal signal);
/* Default GNU/Linux implementation of `displaced_step_location', as
defined in gdbarch.h. Determines the entry point from AT_ENTRY in
the target auxiliary vector. */
extern CORE_ADDR linux_displaced_step_location (struct gdbarch *gdbarch);
/* Implementation of gdbarch_displaced_step_prepare. */
extern displaced_step_prepare_status linux_displaced_step_prepare
(gdbarch *arch, thread_info *thread, CORE_ADDR &displaced_pc);
/* Implementation of gdbarch_displaced_step_finish. */
extern displaced_step_finish_status linux_displaced_step_finish
(gdbarch *arch, thread_info *thread, const target_waitstatus &status);
/* Implementation of gdbarch_displaced_step_copy_insn_closure_by_addr. */
extern const displaced_step_copy_insn_closure *
linux_displaced_step_copy_insn_closure_by_addr
(inferior *inf, CORE_ADDR addr);
/* Implementation of gdbarch_displaced_step_restore_all_in_ptid. */
extern void linux_displaced_step_restore_all_in_ptid (inferior *parent_inf,
ptid_t ptid);
extern void linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch,
int num_disp_step_buffers);
extern int linux_is_uclinux (void);
/* Fetch the AT_HWCAP entry from auxv data AUXV. Use TARGET and GDBARCH to
parse auxv entries.
On error, 0 is returned. */
extern CORE_ADDR linux_get_hwcap (const std::optional<gdb::byte_vector> &auxv,
struct target_ops *target, gdbarch *gdbarch);
/* Same as the above, but obtain all the inputs from the current inferior. */
extern CORE_ADDR linux_get_hwcap ();
/* Fetch the AT_HWCAP2 entry from auxv data AUXV. Use TARGET and GDBARCH to
parse auxv entries.
On error, 0 is returned. */
extern CORE_ADDR linux_get_hwcap2 (const std::optional<gdb::byte_vector> &auxv,
struct target_ops *target, gdbarch *gdbarch);
/* Same as the above, but obtain all the inputs from the current inferior. */
extern CORE_ADDR linux_get_hwcap2 ();
/* Fetch (and possibly build) an appropriate `struct link_map_offsets'
for ILP32 and LP64 Linux systems. */
extern struct link_map_offsets *linux_ilp32_fetch_link_map_offsets ();
extern struct link_map_offsets *linux_lp64_fetch_link_map_offsets ();
#endif /* linux-tdep.h */
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