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/* Native-dependent code for GNU/Linux x86 (i386 and x86-64).
Copyright (C) 1999-2021 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <>. */
#ifndef X86_LINUX_NAT_H
#define X86_LINUX_NAT_H 1
#include "gdb_proc_service.h" /* For ps_err_e. */
#include "linux-nat.h"
#include "x86-nat.h"
#include "nat/x86-linux.h"
struct x86_linux_nat_target : public x86_nat_target<linux_nat_target>
virtual ~x86_linux_nat_target () override = 0;
/* Override the GNU/Linux inferior startup hook. */
void post_startup_inferior (ptid_t) override;
/* Add the description reader. */
const struct target_desc *read_description () override;
struct btrace_target_info *enable_btrace (ptid_t ptid,
const struct btrace_config *conf) override;
void disable_btrace (struct btrace_target_info *tinfo) override;
void teardown_btrace (struct btrace_target_info *tinfo) override;
enum btrace_error read_btrace (struct btrace_data *data,
struct btrace_target_info *btinfo,
enum btrace_read_type type) override;
const struct btrace_config *btrace_conf (const struct btrace_target_info *) override;
/* These two are rewired to low_ versions. linux-nat.c queries
stopped-by-watchpoint info as soon as an lwp stops (via the low_
methods) and caches the result, to be returned via the normal
non-low methods. */
bool stopped_by_watchpoint () override
{ return linux_nat_target::stopped_by_watchpoint (); }
bool stopped_data_address (CORE_ADDR *addr_p) override
{ return linux_nat_target::stopped_data_address (addr_p); }
bool low_stopped_by_watchpoint () override
{ return x86_nat_target::stopped_by_watchpoint (); }
bool low_stopped_data_address (CORE_ADDR *addr_p) override
{ return x86_nat_target::stopped_data_address (addr_p); }
void low_new_fork (struct lwp_info *parent, pid_t child_pid) override;
void low_forget_process (pid_t pid) override
{ x86_forget_process (pid); }
void low_prepare_to_resume (struct lwp_info *lwp) override
{ x86_linux_prepare_to_resume (lwp); }
void low_new_thread (struct lwp_info *lwp) override
{ x86_linux_new_thread (lwp); }
void low_delete_thread (struct arch_lwp_info *lwp) override
{ x86_linux_delete_thread (lwp); }
/* Helper for ps_get_thread_area. Sets BASE_ADDR to a pointer to
the thread local storage (or its descriptor) and returns PS_OK
on success. Returns PS_ERR on failure. */
extern ps_err_e x86_linux_get_thread_area (pid_t pid, void *addr,
unsigned int *base_addr);