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https://sourceware.org/git/binutils-gdb.git
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c0154a4a21
The r_ldsomap field is specific to Solaris (part of librtld_db), and should never be accessed for Linux. glibc is planning to add a field to support multiple namespaces. But there will be no r_ldsomap when r_version is bumped to 2. Add linux_[ilp32|lp64]_fetch_link_map_offsets to set r_ldsomap_offset to -1 and use them for Linux targets. Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=28236
107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/* Target-dependent code for GNU/Linux, architecture independent.
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Copyright (C) 2009-2021 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef LINUX_TDEP_H
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#define LINUX_TDEP_H
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#include "bfd.h"
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#include "displaced-stepping.h"
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struct inferior;
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struct regcache;
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/* Enum used to define the extra fields of the siginfo type used by an
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architecture. */
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enum linux_siginfo_extra_field_values
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{
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/* Add bound fields into the segmentation fault field. */
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LINUX_SIGINFO_FIELD_ADDR_BND = 1
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};
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/* Defines a type for the values defined in linux_siginfo_extra_field_values. */
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DEF_ENUM_FLAGS_TYPE (enum linux_siginfo_extra_field_values,
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linux_siginfo_extra_fields);
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/* This function is suitable for architectures that
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extend/override the standard siginfo in a specific way. */
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struct type *linux_get_siginfo_type_with_fields (struct gdbarch *gdbarch,
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linux_siginfo_extra_fields);
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/* Return true if ADDRESS is within the boundaries of a page mapped with
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memory tagging protection. */
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bool linux_address_in_memtag_page (CORE_ADDR address);
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typedef char *(*linux_collect_thread_registers_ftype) (const struct regcache *,
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ptid_t,
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bfd *, char *, int *,
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enum gdb_signal);
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extern enum gdb_signal linux_gdb_signal_from_target (struct gdbarch *gdbarch,
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int signal);
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extern int linux_gdb_signal_to_target (struct gdbarch *gdbarch,
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enum gdb_signal signal);
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/* Default GNU/Linux implementation of `displaced_step_location', as
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defined in gdbarch.h. Determines the entry point from AT_ENTRY in
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the target auxiliary vector. */
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extern CORE_ADDR linux_displaced_step_location (struct gdbarch *gdbarch);
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/* Implementation of gdbarch_displaced_step_prepare. */
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extern displaced_step_prepare_status linux_displaced_step_prepare
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(gdbarch *arch, thread_info *thread, CORE_ADDR &displaced_pc);
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/* Implementation of gdbarch_displaced_step_finish. */
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extern displaced_step_finish_status linux_displaced_step_finish
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(gdbarch *arch, thread_info *thread, gdb_signal sig);
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/* Implementation of gdbarch_displaced_step_copy_insn_closure_by_addr. */
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extern const displaced_step_copy_insn_closure *
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linux_displaced_step_copy_insn_closure_by_addr
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(inferior *inf, CORE_ADDR addr);
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/* Implementation of gdbarch_displaced_step_restore_all_in_ptid. */
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extern void linux_displaced_step_restore_all_in_ptid (inferior *parent_inf,
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ptid_t ptid);
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extern void linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch,
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int num_disp_step_buffers);
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extern int linux_is_uclinux (void);
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/* Fetch the AT_HWCAP entry from the auxv vector for the given TARGET. On
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error, 0 is returned. */
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extern CORE_ADDR linux_get_hwcap (struct target_ops *target);
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/* Fetch the AT_HWCAP2 entry from the auxv vector for the given TARGET. On
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error, 0 is returned. */
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extern CORE_ADDR linux_get_hwcap2 (struct target_ops *target);
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/* Fetch (and possibly build) an appropriate `struct link_map_offsets'
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for ILP32 and LP64 Linux systems. */
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extern struct link_map_offsets *linux_ilp32_fetch_link_map_offsets ();
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extern struct link_map_offsets *linux_lp64_fetch_link_map_offsets ();
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#endif /* linux-tdep.h */
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