/* Target-dependent code for GNU/Linux, architecture independent.
- Copyright (C) 2009 Free Software Foundation, Inc.
+ Copyright (C) 2009-2022 Free Software Foundation, Inc.
This file is part of GDB.
#ifndef LINUX_TDEP_H
#define LINUX_TDEP_H
-struct type *linux_get_siginfo_type (struct gdbarch *);
+#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, gdb_signal sig);
+
+/* 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 the auxv vector for the given TARGET. On
+ error, 0 is returned. */
+extern CORE_ADDR linux_get_hwcap (struct target_ops *target);
+
+/* Fetch the AT_HWCAP2 entry from the auxv vector for the given TARGET. On
+ error, 0 is returned. */
+extern CORE_ADDR linux_get_hwcap2 (struct target_ops *target);
+
+/* 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 */