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Share windows_thread_info between gdb and gdbserver

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This introduces a new file, nat/windows-nat.h, which holds the
definition of windows_thread_info.  This is now shared between gdb and
gdbserver.

Note that the two implementations different slightly.  gdb had a
couple of fields ("name" and "reload_context") that gdbserver did not;
while gdbserver had one field ("base_context") that gdb did not, plus
better comments.  The new file preserves all the fields, and the
comments.

gdb/ChangeLog
2020-04-08  Tom Tromey  <tromey@adacore.com>

	* windows-nat.c (struct windows_thread_info): Remove.
	* nat/windows-nat.h: New file.

gdbserver/ChangeLog
2020-04-08  Tom Tromey  <tromey@adacore.com>

	* win32-low.h (struct windows_thread_info): Remove.
This commit is contained in:
Tom Tromey 2020-04-08 14:33:35 -06:00
parent 55a1e039f9
commit ae1f888075
5 changed files with 77 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
gdb/ChangeLog
View File

@ -1,3 +1,8 @@
2020-04-08 Tom Tromey <tromey@adacore.com>
* windows-nat.c (struct windows_thread_info): Remove.
* nat/windows-nat.h: New file.
2020-04-08 Tom Tromey <tromey@adacore.com>
* windows-nat.c (struct windows_thread_info) <tid>: Rename from "id".

66
gdb/nat/windows-nat.h Normal file
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@ -0,0 +1,66 @@
/* Internal interfaces for the Windows code
Copyright (C) 1995-2020 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 NAT_WINDOWS_NAT_H
#define NAT_WINDOWS_NAT_H
#include <windows.h>
/* Thread information structure used to track extra information about
each thread. */
struct windows_thread_info
{
/* The Win32 thread identifier. */
DWORD tid;
/* The handle to the thread. */
HANDLE h;
/* Thread Information Block address. */
CORE_ADDR thread_local_base;
/* Non zero if SuspendThread was called on this thread. */
int suspended;
#ifdef _WIN32_WCE
/* The context as retrieved right after suspending the thread. */
CONTEXT base_context;
#endif
/* The context of the thread, including any manipulations. */
union
{
CONTEXT context;
#ifdef __x86_64__
WOW64_CONTEXT wow64_context;
#endif
};
/* Whether debug registers changed since we last set CONTEXT back to
the thread. */
int debug_registers_changed;
/* Nonzero if CONTEXT is invalidated and must be re-read from the
inferior thread. */
int reload_context;
/* The name of the thread, allocated by xmalloc. */
char *name;
};
#endif

20
gdb/windows-nat.c
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@ -70,6 +70,7 @@
#include "gdbsupport/gdb_tilde_expand.h"
#include "gdbsupport/pathstuff.h"
#include "gdbsupport/gdb_wait.h"
#include "nat/windows-nat.h"
#define STATUS_WX86_BREAKPOINT 0x4000001F
#define STATUS_WX86_SINGLE_STEP 0x4000001E
@ -244,25 +245,6 @@ static unsigned long cygwin_get_dr7 (void);
static enum gdb_signal last_sig = GDB_SIGNAL_0;
/* Set if a signal was received from the debugged process. */
/* Thread information structure used to track information that is
not available in gdb's thread structure. */
struct windows_thread_info
{
DWORD tid;
HANDLE h;
CORE_ADDR thread_local_base;
char *name;
int suspended;
int reload_context;
union
{
CONTEXT context;
#ifdef __x86_64__
WOW64_CONTEXT wow64_context;
#endif
};
};
static std::vector<windows_thread_info *> thread_list;
/* The process and thread handles for the above context. */

4
gdbserver/ChangeLog
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@ -1,3 +1,7 @@
2020-04-08 Tom Tromey <tromey@adacore.com>
* win32-low.h (struct windows_thread_info): Remove.
2020-04-08 Tom Tromey <tromey@adacore.com>
* win32-low.h (struct windows_thread_info): Rename from

30
gdbserver/win32-low.h
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@ -20,6 +20,7 @@
#define GDBSERVER_WIN32_LOW_H
#include <windows.h>
#include "nat/windows-nat.h"
struct target_desc;
@ -27,35 +28,6 @@ struct target_desc;
Windows ports support neither bi-arch nor multi-process. */
extern const struct target_desc *win32_tdesc;
/* Thread information structure used to track extra information about
each thread. */
struct windows_thread_info
{
/* The Win32 thread identifier. */
DWORD tid;
/* The handle to the thread. */
HANDLE h;
/* Thread Information Block address. */
CORE_ADDR thread_local_base;
/* Non zero if SuspendThread was called on this thread. */
int suspended;
#ifdef _WIN32_WCE
/* The context as retrieved right after suspending the thread. */
CONTEXT base_context;
#endif
/* The context of the thread, including any manipulations. */
CONTEXT context;
/* Whether debug registers changed since we last set CONTEXT back to
the thread. */
int debug_registers_changed;
};
struct win32_target_ops
{
/* Architecture-specific setup. */