mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2025-03-01 13:26:47 +08:00
9848bf8375
Note that this uses the CPUID instruction to determine the total size of the XSAVE register set. If there is a way to fetch the register set size using ptrace that would probably be better. Approved-By: Simon Marchi <simon.marchi@efficios.com>
96 lines
3.3 KiB
C++
96 lines
3.3 KiB
C++
/* Native-dependent code for GNU/Linux x86 (i386 and x86-64).
|
||
|
||
Copyright (C) 1999-2023 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
|
||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
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 <http://www.gnu.org/licenses/>. */
|
||
|
||
#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 "gdbsupport/x86-xstate.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;
|
||
|
||
/* Add the description reader. */
|
||
const struct target_desc *read_description () override;
|
||
|
||
struct btrace_target_info *enable_btrace (thread_info *tp,
|
||
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;
|
||
|
||
x86_xsave_layout fetch_x86_xsave_layout () override
|
||
{ return m_xsave_layout; }
|
||
|
||
/* 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); }
|
||
|
||
protected:
|
||
/* Override the GNU/Linux inferior startup hook. */
|
||
void post_startup_inferior (ptid_t) override;
|
||
|
||
private:
|
||
x86_xsave_layout m_xsave_layout;
|
||
};
|
||
|
||
|
||
|
||
/* 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);
|
||
|
||
#endif
|