mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* Native-dependent code for FreeBSD x86.
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Copyright (C) 2022-2024 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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#include "defs.h"
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#include "x86-fbsd-nat.h"
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#ifdef PT_GETXSTATE_INFO
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#include "nat/x86-xstate.h"
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#endif
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/* Implement the virtual fbsd_nat_target::low_new_fork method. */
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void
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x86_fbsd_nat_target::low_new_fork (ptid_t parent, pid_t child)
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{
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struct x86_debug_reg_state *parent_state, *child_state;
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/* If there is no parent state, no watchpoints nor breakpoints have
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been set, so there is nothing to do. */
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parent_state = x86_lookup_debug_reg_state (parent.pid ());
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if (parent_state == nullptr)
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return;
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/* The kernel clears debug registers in the new child process after
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fork, but GDB core assumes the child inherits the watchpoints/hw
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breakpoints of the parent, and will remove them all from the
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forked off process. Copy the debug registers mirrors into the
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new process so that all breakpoints and watchpoints can be
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removed together. */
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child_state = x86_debug_reg_state (child);
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*child_state = *parent_state;
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}
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#ifdef PT_GETXSTATE_INFO
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void
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x86_fbsd_nat_target::probe_xsave_layout (pid_t pid)
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{
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if (m_xsave_probed)
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return;
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m_xsave_probed = true;
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if (ptrace (PT_GETXSTATE_INFO, pid, (PTRACE_TYPE_ARG3) &m_xsave_info,
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sizeof (m_xsave_info)) != 0)
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return;
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if (m_xsave_info.xsave_len != 0)
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m_xsave_layout = x86_fetch_xsave_layout (m_xsave_info.xsave_mask,
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m_xsave_info.xsave_len);
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}
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#endif
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