gdb: add target_ops::supports_displaced_step
[deliverable/binutils-gdb.git] / gdb / linux-tdep.h
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1/* Target-dependent code for GNU/Linux, architecture independent.
2
b811d2c2 3 Copyright (C) 2009-2020 Free Software Foundation, Inc.
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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
9 the Free Software Foundation; either version 3 of the License, or
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
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19
20#ifndef LINUX_TDEP_H
21#define LINUX_TDEP_H
22
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23#include "bfd.h"
24
25struct regcache;
26
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27/* Enum used to define the extra fields of the siginfo type used by an
28 architecture. */
29enum linux_siginfo_extra_field_values
30{
31 /* Add bound fields into the segmentation fault field. */
32 LINUX_SIGINFO_FIELD_ADDR_BND = 1
33};
34
35/* Defines a type for the values defined in linux_siginfo_extra_field_values. */
36DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values,
37 linux_siginfo_extra_fields);
38
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39/* This function is suitable for architectures that
40 extend/override the standard siginfo in a specific way. */
41struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
42 linux_siginfo_extra_fields);
43
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44typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
45 ptid_t,
46 bfd *, char *, int *,
2ea28649 47 enum gdb_signal);
6432734d 48
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49extern enum gdb_signal linux_gdb_signal_from_target (struct gdbarch *gdbarch,
50 int signal);
51
52extern int linux_gdb_signal_to_target (struct gdbarch *gdbarch,
53 enum gdb_signal signal);
54
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55/* Default GNU/Linux implementation of `displaced_step_location', as
56 defined in gdbarch.h. Determines the entry point from AT_ENTRY in
57 the target auxiliary vector. */
58extern CORE_ADDR linux_displaced_step_location (struct gdbarch *gdbarch);
59
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60extern void linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch);
61
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62extern int linux_is_uclinux (void);
63
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64/* Fetch the AT_HWCAP entry from the auxv vector for the given TARGET. On
65 error, 0 is returned. */
66extern CORE_ADDR linux_get_hwcap (struct target_ops *target);
67
68/* Fetch the AT_HWCAP2 entry from the auxv vector for the given TARGET. On
69 error, 0 is returned. */
70extern CORE_ADDR linux_get_hwcap2 (struct target_ops *target);
71
4aa995e1 72#endif /* linux-tdep.h */
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