98a0328732
This adds "suspend" and "resume" methods to windows_thread_info, and changes gdb and gdbserver to share this code. gdb/ChangeLog 2020-04-08 Tom Tromey <tromey@adacore.com> * windows-nat.c (thread_rec): Use windows_thread_info::suspend. (windows_continue): Use windows_continue::resume. * nat/windows-nat.h (struct windows_thread_info) <suspend, resume>: Declare new methods. * nat/windows-nat.c: New file. * configure.nat (NATDEPFILES): Add nat/windows-nat.o when needed. gdbserver/ChangeLog 2020-04-08 Tom Tromey <tromey@adacore.com> * win32-low.c (win32_require_context, suspend_one_thread): Use windows_thread_info::suspend. (continue_one_thread): Use windows_thread_info::resume. * configure.srv (srv_tgtobj): Add windows-nat.o when needed.
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/* Internal interfaces for the Windows code
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Copyright (C) 1995-2019 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 "gdbsupport/common-defs.h"
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#include "nat/windows-nat.h"
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void
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windows_thread_info::suspend ()
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{
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if (suspended != 0)
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return;
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if (SuspendThread (h) == (DWORD) -1)
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{
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DWORD err = GetLastError ();
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/* We get Access Denied (5) when trying to suspend
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threads that Windows started on behalf of the
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debuggee, usually when those threads are just
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about to exit.
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We can get Invalid Handle (6) if the main thread
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has exited. */
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if (err != ERROR_INVALID_HANDLE && err != ERROR_ACCESS_DENIED)
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warning (_("SuspendThread (tid=0x%x) failed. (winerr %u)"),
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(unsigned) tid, (unsigned) err);
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suspended = -1;
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}
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else
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suspended = 1;
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}
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void
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windows_thread_info::resume ()
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{
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if (suspended > 0)
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{
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if (ResumeThread (h) == (DWORD) -1)
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{
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DWORD err = GetLastError ();
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warning (_("warning: ResumeThread (tid=0x%x) failed. (winerr %u)"),
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(unsigned) tid, (unsigned) err);
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}
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}
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suspended = 0;
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}
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