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[binutils-gdb.git] / gdb / linux-tdep.h
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1 /* Target-dependent code for GNU/Linux, architecture independent.
3 Copyright (C) 2009-2022 Free Software Foundation, Inc.
5 This file is part of GDB.
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
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 #ifndef LINUX_TDEP_H
21 #define LINUX_TDEP_H
23 #include "bfd.h"
24 #include "displaced-stepping.h"
26 struct inferior;
27 struct regcache;
29 /* Enum used to define the extra fields of the siginfo type used by an
30 architecture. */
31 enum linux_siginfo_extra_field_values
33 /* Add bound fields into the segmentation fault field. */
34 LINUX_SIGINFO_FIELD_ADDR_BND = 1
37 /* Defines a type for the values defined in linux_siginfo_extra_field_values. */
38 DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values,
39 linux_siginfo_extra_fields);
41 /* This function is suitable for architectures that
42 extend/override the standard siginfo in a specific way. */
43 struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
44 linux_siginfo_extra_fields);
46 /* Return true if ADDRESS is within the boundaries of a page mapped with
47 memory tagging protection. */
48 bool linux_address_in_memtag_page (CORE_ADDR address);
50 typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
51 ptid_t,
52 bfd *, char *, int *,
53 enum gdb_signal);
55 extern enum gdb_signal linux_gdb_signal_from_target (struct gdbarch *gdbarch,
56 int signal);
58 extern int linux_gdb_signal_to_target (struct gdbarch *gdbarch,
59 enum gdb_signal signal);
61 /* Default GNU/Linux implementation of `displaced_step_location', as
62 defined in gdbarch.h. Determines the entry point from AT_ENTRY in
63 the target auxiliary vector. */
64 extern CORE_ADDR linux_displaced_step_location (struct gdbarch *gdbarch);
67 /* Implementation of gdbarch_displaced_step_prepare. */
69 extern displaced_step_prepare_status linux_displaced_step_prepare
70 (gdbarch *arch, thread_info *thread, CORE_ADDR &displaced_pc);
72 /* Implementation of gdbarch_displaced_step_finish. */
74 extern displaced_step_finish_status linux_displaced_step_finish
75 (gdbarch *arch, thread_info *thread, gdb_signal sig);
77 /* Implementation of gdbarch_displaced_step_copy_insn_closure_by_addr. */
79 extern const displaced_step_copy_insn_closure *
80 linux_displaced_step_copy_insn_closure_by_addr
81 (inferior *inf, CORE_ADDR addr);
83 /* Implementation of gdbarch_displaced_step_restore_all_in_ptid. */
85 extern void linux_displaced_step_restore_all_in_ptid (inferior *parent_inf,
86 ptid_t ptid);
88 extern void linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch,
89 int num_disp_step_buffers);
91 extern int linux_is_uclinux (void);
93 /* Fetch the AT_HWCAP entry from the auxv vector for the given TARGET. On
94 error, 0 is returned. */
95 extern CORE_ADDR linux_get_hwcap (struct target_ops *target);
97 /* Fetch the AT_HWCAP2 entry from the auxv vector for the given TARGET. On
98 error, 0 is returned. */
99 extern CORE_ADDR linux_get_hwcap2 (struct target_ops *target);
101 /* Fetch (and possibly build) an appropriate `struct link_map_offsets'
102 for ILP32 and LP64 Linux systems. */
103 extern struct link_map_offsets *linux_ilp32_fetch_link_map_offsets ();
104 extern struct link_map_offsets *linux_lp64_fetch_link_map_offsets ();
106 #endif /* linux-tdep.h */