gdb/linux-tdep.h

   1 /* Target-dependent code for GNU/Linux, architecture independent.
   2
   3    Copyright (C) 2009-2019 Free Software Foundation, Inc.
   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
  23 #include "bfd.h"
  24
  25 struct regcache;
  26
  27 /* Enum used to define the extra fields of the siginfo type used by an
  28    architecture.  */
  29 enum 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.  */
  36 DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values,
  37                      linux_siginfo_extra_fields);
  38
  39 /* This function is suitable for architectures that
  40    extend/override the standard siginfo in a specific way.  */
  41 struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
  42                                                  linux_siginfo_extra_fields);
  43
  44 typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
  45                                                        ptid_t,
  46                                                        bfd *, char *, int *,
  47                                                        enum gdb_signal);
  48
  49 extern enum gdb_signal linux_gdb_signal_from_target (struct gdbarch *gdbarch,
  50                                                      int signal);
  51
  52 extern int linux_gdb_signal_to_target (struct gdbarch *gdbarch,
  53                                        enum gdb_signal signal);
  54
  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.  */
  58 extern CORE_ADDR linux_displaced_step_location (struct gdbarch *gdbarch);
  59
  60 extern void linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch);
  61
  62 extern int linux_is_uclinux (void);
  63
  64 /* Fetch the AT_HWCAP entry from the auxv vector for the given TARGET.  On
  65    error, 0 is returned.  */
  66 extern 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.  */
  70 extern CORE_ADDR linux_get_hwcap2 (struct target_ops *target);
  71
  72 #endif /* linux-tdep.h */