2047 lines
56 KiB
C
2047 lines
56 KiB
C
/* Target-vector operations for controlling Windows CE child processes, for GDB.
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Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions, A Red Hat Company.
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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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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/* by Christopher Faylor (cgf@cygnus.com) */
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/* We assume we're being built with and will be used for cygwin. */
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#ifdef SHx
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#undef SH4
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#define SH4 /* Just to get all of the CONTEXT defines. */
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#endif
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#include "defs.h"
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#include "frame.h" /* required by inferior.h */
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#include "inferior.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "command.h"
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#include <signal.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <windows.h>
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#include <rapi.h>
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#include <netdb.h>
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#include <cygwin/in.h>
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#include <cygwin/socket.h>
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#include "buildsym.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "gdb_string.h"
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#include "gdbthread.h"
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#include "gdbcmd.h"
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#include <sys/param.h>
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#include "wince-stub.h"
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#include <time.h>
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#include "regcache.h"
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/* The ui's event loop. */
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extern int (*ui_loop_hook) (int signo);
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/* If we're not using the old Cygwin header file set, define the
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following which never should have been in the generic Win32 API
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headers in the first place since they were our own invention... */
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#ifndef _GNU_H_WINDOWS_H
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#define FLAG_TRACE_BIT 0x100
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#ifdef CONTEXT_FLOATING_POINT
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#define CONTEXT_DEBUGGER0 (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
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#else
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#define CONTEXT_DEBUGGER0 (CONTEXT_FULL)
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#endif
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#endif
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#ifdef SH4
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#define CONTEXT_DEBUGGER ((CONTEXT_DEBUGGER0 & ~(CONTEXT_SH4 | CONTEXT_FLOATING_POINT)) | CONTEXT_SH3)
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#else
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#define CONTEXT_DEBUGGER CONTEXT_DEBUGGER0
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#endif
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/* The string sent by cygwin when it processes a signal.
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FIXME: This should be in a cygwin include file. */
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#define CYGWIN_SIGNAL_STRING "cygwin: signal"
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#define CHECK(x) check (x, __FILE__,__LINE__)
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#define DEBUG_EXEC(x) if (debug_exec) printf x
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#define DEBUG_EVENTS(x) if (debug_events) printf x
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#define DEBUG_MEM(x) if (debug_memory) printf x
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#define DEBUG_EXCEPT(x) if (debug_exceptions) printf x
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static int connection_initialized = 0; /* True if we've initialized a RAPI session. */
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/* The directory where the stub and executable files are uploaded. */
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static const char *remote_directory = "\\gdb";
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/* The types automatic upload available. */
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static enum
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{
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UPLOAD_ALWAYS = 0,
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UPLOAD_NEWER = 1,
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UPLOAD_NEVER = 2
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}
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upload_when = UPLOAD_NEWER;
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/* Valid options for 'set remoteupload'. Note that options
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must track upload_when enum. */
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static struct opts
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{
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const char *name;
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int abbrev;
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}
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upload_options[3] =
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{
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{
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"always", 1
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}
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,
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{
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"newer", 3
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}
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,
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{
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"never", 3
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}
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};
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static char *remote_upload = NULL; /* Set by set remoteupload */
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static int remote_add_host = 0;
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/* Forward declaration */
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extern struct target_ops child_ops;
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static int win32_child_thread_alive (ptid_t);
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void child_kill_inferior (void);
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static int last_sig = 0; /* Set if a signal was received from the
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debugged process */
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/* Thread information structure used to track information that is
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not available in gdb's thread structure. */
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typedef struct thread_info_struct
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{
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struct thread_info_struct *next;
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DWORD id;
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HANDLE h;
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char *name;
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int suspend_count;
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int stepped; /* True if stepped. */
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CORE_ADDR step_pc;
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unsigned long step_prev;
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CONTEXT context;
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}
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thread_info;
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static thread_info thread_head =
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{NULL};
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static thread_info * thread_rec (DWORD id, int get_context);
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/* The process and thread handles for the above context. */
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static DEBUG_EVENT current_event; /* The current debug event from
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WaitForDebugEvent */
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static HANDLE current_process_handle; /* Currently executing process */
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static thread_info *current_thread; /* Info on currently selected thread */
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static thread_info *this_thread; /* Info on thread returned by wait_for_debug_event */
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static DWORD main_thread_id; /* Thread ID of the main thread */
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/* Counts of things. */
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static int exception_count = 0;
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static int event_count = 0;
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/* User options. */
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static int debug_exec = 0; /* show execution */
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static int debug_events = 0; /* show events from kernel */
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static int debug_memory = 0; /* show target memory accesses */
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static int debug_exceptions = 0; /* show target exceptions */
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/* An array of offset mappings into a Win32 Context structure.
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This is a one-to-one mapping which is indexed by gdb's register
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numbers. It retrieves an offset into the context structure where
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the 4 byte register is located.
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An offset value of -1 indicates that Win32 does not provide this
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register in it's CONTEXT structure. regptr will return zero for this
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register.
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This is used by the regptr function. */
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#define context_offset(x) ((int)&(((PCONTEXT)NULL)->x))
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static const int mappings[NUM_REGS + 1] =
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{
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#ifdef __i386__
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context_offset (Eax),
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context_offset (Ecx),
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context_offset (Edx),
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context_offset (Ebx),
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context_offset (Esp),
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context_offset (Ebp),
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context_offset (Esi),
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context_offset (Edi),
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context_offset (Eip),
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context_offset (EFlags),
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context_offset (SegCs),
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context_offset (SegSs),
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context_offset (SegDs),
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context_offset (SegEs),
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context_offset (SegFs),
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context_offset (SegGs),
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context_offset (FloatSave.RegisterArea[0 * 10]),
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context_offset (FloatSave.RegisterArea[1 * 10]),
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context_offset (FloatSave.RegisterArea[2 * 10]),
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context_offset (FloatSave.RegisterArea[3 * 10]),
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context_offset (FloatSave.RegisterArea[4 * 10]),
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context_offset (FloatSave.RegisterArea[5 * 10]),
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context_offset (FloatSave.RegisterArea[6 * 10]),
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context_offset (FloatSave.RegisterArea[7 * 10]),
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#elif defined(SHx)
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context_offset (R0),
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context_offset (R1),
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context_offset (R2),
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context_offset (R3),
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context_offset (R4),
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context_offset (R5),
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context_offset (R6),
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context_offset (R7),
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context_offset (R8),
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context_offset (R9),
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context_offset (R10),
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context_offset (R11),
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context_offset (R12),
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context_offset (R13),
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context_offset (R14),
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context_offset (R15),
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context_offset (Fir),
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context_offset (PR), /* Procedure Register */
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context_offset (GBR), /* Global Base Register */
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context_offset (MACH), /* Accumulate */
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context_offset (MACL), /* Multiply */
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context_offset (Psr),
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context_offset (Fpul),
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context_offset (Fpscr),
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context_offset (FRegs[0]),
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context_offset (FRegs[1]),
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context_offset (FRegs[2]),
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context_offset (FRegs[3]),
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context_offset (FRegs[4]),
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context_offset (FRegs[5]),
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context_offset (FRegs[6]),
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context_offset (FRegs[7]),
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context_offset (FRegs[8]),
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context_offset (FRegs[9]),
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context_offset (FRegs[10]),
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context_offset (FRegs[11]),
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context_offset (FRegs[12]),
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context_offset (FRegs[13]),
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context_offset (FRegs[14]),
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context_offset (FRegs[15]),
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context_offset (xFRegs[0]),
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context_offset (xFRegs[1]),
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context_offset (xFRegs[2]),
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context_offset (xFRegs[3]),
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context_offset (xFRegs[4]),
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context_offset (xFRegs[5]),
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context_offset (xFRegs[6]),
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context_offset (xFRegs[7]),
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context_offset (xFRegs[8]),
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context_offset (xFRegs[9]),
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context_offset (xFRegs[10]),
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context_offset (xFRegs[11]),
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context_offset (xFRegs[12]),
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context_offset (xFRegs[13]),
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context_offset (xFRegs[14]),
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context_offset (xFRegs[15]),
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#elif defined(MIPS)
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context_offset (IntZero),
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context_offset (IntAt),
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context_offset (IntV0),
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context_offset (IntV1),
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context_offset (IntA0),
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context_offset (IntA1),
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context_offset (IntA2),
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context_offset (IntA3),
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context_offset (IntT0),
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context_offset (IntT1),
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context_offset (IntT2),
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context_offset (IntT3),
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context_offset (IntT4),
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context_offset (IntT5),
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context_offset (IntT6),
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context_offset (IntT7),
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context_offset (IntS0),
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context_offset (IntS1),
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context_offset (IntS2),
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context_offset (IntS3),
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context_offset (IntS4),
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context_offset (IntS5),
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context_offset (IntS6),
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context_offset (IntS7),
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context_offset (IntT8),
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context_offset (IntT9),
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context_offset (IntK0),
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context_offset (IntK1),
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context_offset (IntGp),
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context_offset (IntSp),
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context_offset (IntS8),
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context_offset (IntRa),
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context_offset (Psr),
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context_offset (IntLo),
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context_offset (IntHi),
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-1, /* bad */
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-1, /* cause */
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context_offset (Fir),
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context_offset (FltF0),
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context_offset (FltF1),
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context_offset (FltF2),
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context_offset (FltF3),
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context_offset (FltF4),
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context_offset (FltF5),
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context_offset (FltF6),
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context_offset (FltF7),
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context_offset (FltF8),
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context_offset (FltF9),
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context_offset (FltF10),
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context_offset (FltF11),
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context_offset (FltF12),
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context_offset (FltF13),
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context_offset (FltF14),
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context_offset (FltF15),
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context_offset (FltF16),
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context_offset (FltF17),
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context_offset (FltF18),
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context_offset (FltF19),
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context_offset (FltF20),
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context_offset (FltF21),
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context_offset (FltF22),
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context_offset (FltF23),
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context_offset (FltF24),
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context_offset (FltF25),
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context_offset (FltF26),
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context_offset (FltF27),
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context_offset (FltF28),
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context_offset (FltF29),
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context_offset (FltF30),
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context_offset (FltF31),
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context_offset (Fsr),
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context_offset (Fir),
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-1, /* fp */
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#elif defined(ARM)
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context_offset (R0),
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context_offset (R1),
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context_offset (R2),
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context_offset (R3),
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context_offset (R4),
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context_offset (R5),
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context_offset (R6),
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context_offset (R7),
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context_offset (R8),
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context_offset (R9),
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context_offset (R10),
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context_offset (R11),
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context_offset (R12),
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context_offset (Sp),
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context_offset (Lr),
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context_offset (Pc),
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-1,
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-1,
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-1,
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-1,
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-1,
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-1,
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-1,
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-1,
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-1,
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context_offset (Psr),
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#endif
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-1
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};
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/* Return a pointer into a CONTEXT field indexed by gdb register number.
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Return a pointer to an address pointing to zero if there is no
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corresponding CONTEXT field for the given register number.
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*/
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static ULONG *
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regptr (LPCONTEXT c, int r)
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{
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static ULONG zero = 0;
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ULONG *p;
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if (mappings[r] < 0)
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p = &zero;
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else
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p = (ULONG *) (((char *) c) + mappings[r]);
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return p;
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}
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/******************** Beginning of stub interface ********************/
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/* Stub interface description:
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The Windows CE stub implements a crude RPC. The hand-held device
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connects to gdb using port 7000. gdb and the stub then communicate
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using packets where:
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byte 0: command id (e.g. Create Process)
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byte 1-4: DWORD
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byte 1-2: WORD
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byte 1-2: length
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byte 3-n: arbitrary memory.
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The interface is deterministic, i.e., if the stub expects a DWORD then
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the gdb server should send a DWORD.
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*/
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/* Note: In the functions below, the `huh' parameter is a string passed from the
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function containing a descriptive string concerning the current operation.
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This is used for error reporting.
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The 'what' parameter is a command id as found in wince-stub.h.
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Hopefully, the rest of the parameters are self-explanatory.
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*/
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static int s; /* communication socket */
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/* v-style interface for handling varying argyment list error messages.
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Displays the error message in a dialog box and exits when user clicks
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on OK. */
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static void
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vstub_error (LPCSTR fmt, va_list * args)
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{
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char buf[4096];
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vsprintf (buf, fmt, args);
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s = -1;
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error ("%s", buf);
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}
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/* The standard way to display an error message and exit. */
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static void
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stub_error (LPCSTR fmt,...)
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{
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va_list args;
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va_start (args, fmt);
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vstub_error (fmt, args);
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}
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/* Standard "oh well" can't communicate error. Someday this might attempt
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synchronization. */
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static void
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attempt_resync (LPCSTR huh, int s)
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{
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stub_error ("lost synchronization with target attempting %s", huh);
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}
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/* Read arbitrary stuff from a socket. */
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static int
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sockread (LPCSTR huh, int s, void *str, size_t n)
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{
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for (;;)
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{
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if (recv (s, str, n, 0) == n)
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return n;
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attempt_resync (huh, s);
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}
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}
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/* Write arbitrary stuff to a socket. */
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static int
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sockwrite (LPCSTR huh, const void *str, size_t n)
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{
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for (;;)
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{
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if (send (s, str, n, 0) == n)
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return n;
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attempt_resync (huh, s);
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}
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}
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/* Output an id/dword to the host */
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static void
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putdword (LPCSTR huh, gdb_wince_id what, DWORD n)
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{
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if (sockwrite (huh, &what, sizeof (what)) != sizeof (what))
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stub_error ("error writing record id to host for %s", huh);
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if (sockwrite (huh, &n, sizeof (n)) != sizeof (n))
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stub_error ("error writing %s to host.", huh);
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}
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/* Output an id/word to the host */
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static void
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putword (LPCSTR huh, gdb_wince_id what, WORD n)
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{
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if (sockwrite (huh, &what, sizeof (what)) != sizeof (what))
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stub_error ("error writing record id to host for %s", huh);
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if (sockwrite (huh, &n, sizeof (n)) != sizeof (n))
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stub_error ("error writing %s host.", huh);
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}
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/* Convenience define for outputting a "gdb_wince_len" type. */
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#define putlen(huh, what, n) putword((huh), (what), (gdb_wince_len) (n))
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/* Put an arbitrary block of memory to the gdb host. This comes in
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two chunks an id/dword representing the length and the stream of memory
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itself. */
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static void
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putmemory (LPCSTR huh, gdb_wince_id what, const void *mem, gdb_wince_len len)
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{
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putlen (huh, what, len);
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if (((short) len > 0) && sockwrite (huh, mem, len) != len)
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stub_error ("error writing %s to host.", huh);
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}
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/* Output the result of an operation to the host. If res != 0, sends a block of
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memory starting at mem of len bytes. If res == 0, sends -GetLastError () and
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|
avoids sending the mem. */
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|
static DWORD
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getdword (LPCSTR huh, gdb_wince_id what_this)
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|
{
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DWORD n;
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gdb_wince_id what;
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do
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if (sockread (huh, s, &what, sizeof (what)) != sizeof (what))
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|
stub_error ("error getting record type from host - %s.", huh);
|
|
while (what_this != what);
|
|
|
|
if (sockread (huh, s, &n, sizeof (n)) != sizeof (n))
|
|
stub_error ("error getting %s from host.", huh);
|
|
|
|
return n;
|
|
}
|
|
|
|
/* Get a an ID (possibly) and a WORD from the host gdb.
|
|
Don't bother with the id if the main loop has already
|
|
read it. */
|
|
static WORD
|
|
getword (LPCSTR huh, gdb_wince_id what_this)
|
|
{
|
|
WORD n;
|
|
gdb_wince_id what;
|
|
do
|
|
if (sockread (huh, s, &what, sizeof (what)) != sizeof (what))
|
|
stub_error ("error getting record type from host - %s.", huh);
|
|
while (what_this != what);
|
|
|
|
if (sockread (huh, s, &n, sizeof (n)) != sizeof (n))
|
|
stub_error ("error getting %s from host.", huh);
|
|
|
|
return n;
|
|
}
|
|
|
|
/* Handy defines for getting/putting various types of values. */
|
|
#define gethandle(huh, what) (HANDLE) getdword ((huh), (what))
|
|
#define getpvoid(huh, what) (LPVOID) getdword ((huh), (what))
|
|
#define getlen(huh, what) (gdb_wince_len) getword ((huh), (what))
|
|
#define puthandle(huh, what, h) putdword ((huh), (what), (DWORD) (h))
|
|
#define putpvoid(huh, what, p) putdword ((huh), (what), (DWORD) (p))
|
|
|
|
/* Retrieve the result of an operation from the stub. If nbytes < 0) then nbytes
|
|
is actually an error and nothing else follows. Use SetLastError to remember this.
|
|
if nbytes > 0, retrieve a block of *nbytes into buf.
|
|
*/
|
|
int
|
|
getresult (LPCSTR huh, gdb_wince_id what, LPVOID buf, gdb_wince_len * nbytes)
|
|
{
|
|
gdb_wince_len dummy;
|
|
if (nbytes == NULL)
|
|
nbytes = &dummy;
|
|
|
|
*nbytes = getlen (huh, what);
|
|
|
|
if ((short) *nbytes < 0)
|
|
{
|
|
SetLastError (-(short) *nbytes);
|
|
return 0;
|
|
}
|
|
|
|
if ((gdb_wince_len) sockread (huh, s, buf, *nbytes) != *nbytes)
|
|
stub_error ("couldn't read information from wince stub - %s", huh);
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Convert "narrow" string to "wide". Manipulates a buffer ring of 8
|
|
buffers which hold the translated string. This is an arbitrary limit
|
|
but it is approximately double the current needs of this module.
|
|
*/
|
|
LPWSTR
|
|
towide (const char *s, gdb_wince_len * out_len)
|
|
{
|
|
static int n = -1;
|
|
static LPWSTR outs[8] =
|
|
{NULL /*, NULL, etc. */ };
|
|
gdb_wince_len dummy;
|
|
|
|
if (!out_len)
|
|
out_len = &dummy;
|
|
|
|
/* First determine the length required to hold the converted string. */
|
|
*out_len = sizeof (WCHAR) * MultiByteToWideChar (CP_ACP, 0, s, -1, NULL, 0);
|
|
if (!*out_len)
|
|
return NULL; /* The conversion failed */
|
|
|
|
if (++n >= (sizeof (outs) / sizeof (outs[0])))
|
|
n = 0; /* wrap */
|
|
|
|
/* Allocate space for the converted string, reusing any previously allocated
|
|
space, if applicable. Note that if outs[n] is NULL, xrealloc will act as
|
|
a malloc (under cygwin, at least).
|
|
*/
|
|
outs[n] = (LPWSTR) xrealloc (outs[n], *out_len);
|
|
memset (outs[n], 0, *out_len);
|
|
(void) MultiByteToWideChar (CP_ACP, 0, s, -1, outs[n], *out_len);
|
|
return outs[n];
|
|
}
|
|
|
|
/******************** Emulation routines start here. ********************
|
|
|
|
The functions below are modelled after their Win32 counterparts. They are named
|
|
similarly to Win32 and take exactly the same arguments except where otherwise noted.
|
|
They communicate with the stub on the hand-held device by sending their arguments
|
|
over the socket and waiting for results from the socket.
|
|
|
|
There is one universal change. In cases where a length is expected to be returned
|
|
in a DWORD, we use a gdb_wince_len type instead. Currently this is an unsigned short
|
|
which is smaller than the standard Win32 DWORD. This is done to minimize unnecessary
|
|
traffic since the connection to Windows CE can be slow. To change this, modify the
|
|
typedef in wince-stub.h and change the putlen/getlen macros in this file and in
|
|
the stub.
|
|
*/
|
|
|
|
static int
|
|
create_process (LPSTR exec_file, LPSTR args, DWORD flags, PROCESS_INFORMATION * pi)
|
|
{
|
|
gdb_wince_len len;
|
|
LPWSTR buf;
|
|
|
|
buf = towide (exec_file, &len);
|
|
putmemory ("CreateProcess exec_file", GDB_CREATEPROCESS, buf, len);
|
|
buf = towide (args, &len);
|
|
putmemory ("CreateProcess args", GDB_CREATEPROCESS, buf, len);
|
|
putdword ("CreateProcess flags", GDB_CREATEPROCESS, flags);
|
|
return getresult ("CreateProcess result", GDB_CREATEPROCESS, pi, NULL);
|
|
}
|
|
|
|
/* Emulate TerminateProcess. Don't bother with the second argument since CE
|
|
ignores it.
|
|
*/
|
|
static int
|
|
terminate_process (HANDLE h)
|
|
{
|
|
gdb_wince_result res;
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("TerminateProcess handle", GDB_TERMINATEPROCESS, h);
|
|
return getresult ("TerminateProcess result", GDB_TERMINATEPROCESS, &res, NULL);
|
|
}
|
|
|
|
static int
|
|
wait_for_debug_event (DEBUG_EVENT * ev, DWORD ms)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
putdword ("WaitForDebugEvent ms", GDB_WAITFORDEBUGEVENT, ms);
|
|
return getresult ("WaitForDebugEvent event", GDB_WAITFORDEBUGEVENT, ev, NULL);
|
|
}
|
|
|
|
static int
|
|
get_thread_context (HANDLE h, CONTEXT * c)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("GetThreadContext handle", GDB_GETTHREADCONTEXT, h);
|
|
putdword ("GetThreadContext flags", GDB_GETTHREADCONTEXT, c->ContextFlags);
|
|
return getresult ("GetThreadContext context", GDB_GETTHREADCONTEXT, c, NULL);
|
|
}
|
|
|
|
static int
|
|
set_thread_context (HANDLE h, CONTEXT * c)
|
|
{
|
|
gdb_wince_result res;
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("SetThreadContext handle", GDB_SETTHREADCONTEXT, h);
|
|
putmemory ("SetThreadContext context", GDB_SETTHREADCONTEXT, c, sizeof (*c));
|
|
return getresult ("SetThreadContext context", GDB_SETTHREADCONTEXT, &res, NULL);
|
|
}
|
|
|
|
static int
|
|
read_process_memory (HANDLE h, LPCVOID where, LPVOID buf, gdb_wince_len len, gdb_wince_len * nbytes)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("ReadProcessMemory handle", GDB_READPROCESSMEMORY, h);
|
|
putpvoid ("ReadProcessMemory location", GDB_READPROCESSMEMORY, where);
|
|
putlen ("ReadProcessMemory size", GDB_READPROCESSMEMORY, len);
|
|
|
|
return getresult ("ReadProcessMemory buf", GDB_READPROCESSMEMORY, buf, nbytes);
|
|
}
|
|
|
|
static int
|
|
write_process_memory (HANDLE h, LPCVOID where, LPCVOID buf, gdb_wince_len len, gdb_wince_len * nbytes)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("WriteProcessMemory handle", GDB_WRITEPROCESSMEMORY, h);
|
|
putpvoid ("WriteProcessMemory location", GDB_WRITEPROCESSMEMORY, where);
|
|
putmemory ("WriteProcProcessMemory buf", GDB_WRITEPROCESSMEMORY, buf, len);
|
|
|
|
return getresult ("WriteProcessMemory result", GDB_WRITEPROCESSMEMORY, nbytes, NULL);
|
|
}
|
|
|
|
static int
|
|
remote_read_bytes (CORE_ADDR memaddr, char *myaddr, int len)
|
|
{
|
|
gdb_wince_len nbytes;
|
|
if (!read_process_memory (current_process_handle, (LPCVOID) memaddr,
|
|
(LPVOID) myaddr, len, &nbytes))
|
|
return -1;
|
|
return nbytes;
|
|
}
|
|
|
|
static int
|
|
remote_write_bytes (CORE_ADDR memaddr, char *myaddr, int len)
|
|
{
|
|
gdb_wince_len nbytes;
|
|
if (!write_process_memory (current_process_handle, (LPCVOID) memaddr,
|
|
(LPCVOID) myaddr, len, &nbytes))
|
|
return -1;
|
|
return nbytes;
|
|
}
|
|
|
|
/* This is not a standard Win32 function. It instructs the stub to return TRUE
|
|
if the thread referenced by HANDLE h is alive.
|
|
*/
|
|
static int
|
|
thread_alive (HANDLE h)
|
|
{
|
|
gdb_wince_result res;
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("ThreadAlive handle", GDB_THREADALIVE, h);
|
|
return getresult ("ThreadAlive result", GDB_THREADALIVE, &res, NULL);
|
|
}
|
|
|
|
static int
|
|
suspend_thread (HANDLE h)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("SuspendThread handle", GDB_SUSPENDTHREAD, h);
|
|
return (int) getdword ("SuspendThread result", GDB_SUSPENDTHREAD);
|
|
}
|
|
|
|
static int
|
|
resume_thread (HANDLE h)
|
|
{
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("ResumeThread handle", GDB_RESUMETHREAD, h);
|
|
return (int) getdword ("SuspendThread result", GDB_RESUMETHREAD);
|
|
}
|
|
|
|
static int
|
|
continue_debug_event (DWORD pid, DWORD tid, DWORD status)
|
|
{
|
|
gdb_wince_result res;
|
|
if (s < 0)
|
|
return 0;
|
|
putdword ("ContinueDebugEvent pid", GDB_CONTINUEDEBUGEVENT, pid);
|
|
putdword ("ContinueDebugEvent tid", GDB_CONTINUEDEBUGEVENT, tid);
|
|
putdword ("ContinueDebugEvent status", GDB_CONTINUEDEBUGEVENT, status);
|
|
return getresult ("ContinueDebugEvent result", GDB_CONTINUEDEBUGEVENT, &res, NULL);
|
|
}
|
|
|
|
static int
|
|
close_handle (HANDLE h)
|
|
{
|
|
gdb_wince_result res;
|
|
if (s < 0)
|
|
return 1;
|
|
puthandle ("CloseHandle handle", GDB_CLOSEHANDLE, h);
|
|
return (int) getresult ("CloseHandle result", GDB_CLOSEHANDLE, &res, NULL);
|
|
}
|
|
|
|
/* This is not a standard Win32 interface. This function tells the stub
|
|
to terminate.
|
|
*/
|
|
static void
|
|
stop_stub (void)
|
|
{
|
|
if (s < 0)
|
|
return;
|
|
(void) putdword ("Stopping gdb stub", GDB_STOPSTUB, 0);
|
|
s = -1;
|
|
}
|
|
|
|
/******************** End of emulation routines. ********************/
|
|
/******************** End of stub interface ********************/
|
|
|
|
#define check_for_step(a, x) (x)
|
|
|
|
#ifdef MIPS
|
|
static void
|
|
undoSStep (thread_info * th)
|
|
{
|
|
if (th->stepped)
|
|
{
|
|
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
th->stepped = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
wince_software_single_step (enum target_signal ignore,
|
|
int insert_breakpoints_p)
|
|
{
|
|
unsigned long pc;
|
|
thread_info *th = current_thread; /* Info on currently selected thread */
|
|
CORE_ADDR mips_next_pc (CORE_ADDR pc);
|
|
|
|
if (!insert_breakpoints_p)
|
|
{
|
|
undoSStep (th);
|
|
return;
|
|
}
|
|
|
|
th->stepped = 1;
|
|
pc = read_register (PC_REGNUM);
|
|
th->step_pc = mips_next_pc (pc);
|
|
th->step_prev = 0;
|
|
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
return;
|
|
}
|
|
#elif SHx
|
|
/* Hitachi SH architecture instruction encoding masks */
|
|
|
|
#define COND_BR_MASK 0xff00
|
|
#define UCOND_DBR_MASK 0xe000
|
|
#define UCOND_RBR_MASK 0xf0df
|
|
#define TRAPA_MASK 0xff00
|
|
|
|
#define COND_DISP 0x00ff
|
|
#define UCOND_DISP 0x0fff
|
|
#define UCOND_REG 0x0f00
|
|
|
|
/* Hitachi SH instruction opcodes */
|
|
|
|
#define BF_INSTR 0x8b00
|
|
#define BT_INSTR 0x8900
|
|
#define BRA_INSTR 0xa000
|
|
#define BSR_INSTR 0xb000
|
|
#define JMP_INSTR 0x402b
|
|
#define JSR_INSTR 0x400b
|
|
#define RTS_INSTR 0x000b
|
|
#define RTE_INSTR 0x002b
|
|
#define TRAPA_INSTR 0xc300
|
|
#define SSTEP_INSTR 0xc3ff
|
|
|
|
|
|
#define T_BIT_MASK 0x0001
|
|
|
|
static CORE_ADDR
|
|
sh_get_next_pc (CONTEXT *c)
|
|
{
|
|
short *instrMem;
|
|
int displacement;
|
|
int reg;
|
|
unsigned short opcode;
|
|
|
|
instrMem = (short *) c->Fir;
|
|
|
|
opcode = read_memory_integer ((CORE_ADDR) c->Fir, sizeof (opcode));
|
|
|
|
if ((opcode & COND_BR_MASK) == BT_INSTR)
|
|
{
|
|
if (c->Psr & T_BIT_MASK)
|
|
{
|
|
displacement = (opcode & COND_DISP) << 1;
|
|
if (displacement & 0x80)
|
|
displacement |= 0xffffff00;
|
|
/*
|
|
* Remember PC points to second instr.
|
|
* after PC of branch ... so add 4
|
|
*/
|
|
instrMem = (short *) (c->Fir + displacement + 4);
|
|
}
|
|
else
|
|
instrMem += 1;
|
|
}
|
|
else if ((opcode & COND_BR_MASK) == BF_INSTR)
|
|
{
|
|
if (c->Psr & T_BIT_MASK)
|
|
instrMem += 1;
|
|
else
|
|
{
|
|
displacement = (opcode & COND_DISP) << 1;
|
|
if (displacement & 0x80)
|
|
displacement |= 0xffffff00;
|
|
/*
|
|
* Remember PC points to second instr.
|
|
* after PC of branch ... so add 4
|
|
*/
|
|
instrMem = (short *) (c->Fir + displacement + 4);
|
|
}
|
|
}
|
|
else if ((opcode & UCOND_DBR_MASK) == BRA_INSTR)
|
|
{
|
|
displacement = (opcode & UCOND_DISP) << 1;
|
|
if (displacement & 0x0800)
|
|
displacement |= 0xfffff000;
|
|
|
|
/*
|
|
* Remember PC points to second instr.
|
|
* after PC of branch ... so add 4
|
|
*/
|
|
instrMem = (short *) (c->Fir + displacement + 4);
|
|
}
|
|
else if ((opcode & UCOND_RBR_MASK) == JSR_INSTR)
|
|
{
|
|
reg = (char) ((opcode & UCOND_REG) >> 8);
|
|
|
|
instrMem = (short *) *regptr (c, reg);
|
|
}
|
|
else if (opcode == RTS_INSTR)
|
|
instrMem = (short *) c->PR;
|
|
else if (opcode == RTE_INSTR)
|
|
instrMem = (short *) *regptr (c, 15);
|
|
else if ((opcode & TRAPA_MASK) == TRAPA_INSTR)
|
|
instrMem = (short *) ((opcode & ~TRAPA_MASK) << 2);
|
|
else
|
|
instrMem += 1;
|
|
|
|
return (CORE_ADDR) instrMem;
|
|
}
|
|
/* Single step (in a painstaking fashion) by inspecting the current
|
|
instruction and setting a breakpoint on the "next" instruction
|
|
which would be executed. This code hails from sh-stub.c.
|
|
*/
|
|
static void
|
|
undoSStep (thread_info * th)
|
|
{
|
|
if (th->stepped)
|
|
{
|
|
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
th->stepped = 0;
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Single step (in a painstaking fashion) by inspecting the current
|
|
instruction and setting a breakpoint on the "next" instruction
|
|
which would be executed. This code hails from sh-stub.c.
|
|
*/
|
|
void
|
|
wince_software_single_step (enum target_signal ignore,
|
|
int insert_breakpoints_p)
|
|
{
|
|
thread_info *th = current_thread; /* Info on currently selected thread */
|
|
|
|
if (!insert_breakpoints_p)
|
|
{
|
|
undoSStep (th);
|
|
return;
|
|
}
|
|
|
|
th->stepped = 1;
|
|
th->step_pc = sh_get_next_pc (&th->context);
|
|
th->step_prev = 0;
|
|
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
return;
|
|
}
|
|
#elif defined (ARM)
|
|
#undef check_for_step
|
|
|
|
static enum target_signal
|
|
check_for_step (DEBUG_EVENT *ev, enum target_signal x)
|
|
{
|
|
thread_info *th = thread_rec (ev->dwThreadId, 1);
|
|
|
|
if (th->stepped &&
|
|
th->step_pc == (CORE_ADDR) ev->u.Exception.ExceptionRecord.ExceptionAddress)
|
|
return TARGET_SIGNAL_TRAP;
|
|
else
|
|
return x;
|
|
}
|
|
|
|
/* Single step (in a painstaking fashion) by inspecting the current
|
|
instruction and setting a breakpoint on the "next" instruction
|
|
which would be executed. This code hails from sh-stub.c.
|
|
*/
|
|
static void
|
|
undoSStep (thread_info * th)
|
|
{
|
|
if (th->stepped)
|
|
{
|
|
memory_remove_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
th->stepped = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
wince_software_single_step (enum target_signal ignore,
|
|
int insert_breakpoints_p)
|
|
{
|
|
unsigned long pc;
|
|
thread_info *th = current_thread; /* Info on currently selected thread */
|
|
CORE_ADDR mips_next_pc (CORE_ADDR pc);
|
|
|
|
if (!insert_breakpoints_p)
|
|
{
|
|
undoSStep (th);
|
|
return;
|
|
}
|
|
|
|
th->stepped = 1;
|
|
pc = read_register (PC_REGNUM);
|
|
th->step_pc = arm_get_next_pc (pc);
|
|
th->step_prev = 0;
|
|
memory_insert_breakpoint (th->step_pc, (void *) &th->step_prev);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
/* Find a thread record given a thread id.
|
|
If get_context then also retrieve the context for this
|
|
thread. */
|
|
static thread_info *
|
|
thread_rec (DWORD id, int get_context)
|
|
{
|
|
thread_info *th;
|
|
|
|
for (th = &thread_head; (th = th->next) != NULL;)
|
|
if (th->id == id)
|
|
{
|
|
if (!th->suspend_count && get_context)
|
|
{
|
|
if (get_context > 0 && th != this_thread)
|
|
th->suspend_count = suspend_thread (th->h) + 1;
|
|
else if (get_context < 0)
|
|
th->suspend_count = -1;
|
|
|
|
th->context.ContextFlags = CONTEXT_DEBUGGER;
|
|
get_thread_context (th->h, &th->context);
|
|
}
|
|
return th;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* Add a thread to the thread list */
|
|
static thread_info *
|
|
child_add_thread (DWORD id, HANDLE h)
|
|
{
|
|
thread_info *th;
|
|
|
|
if ((th = thread_rec (id, FALSE)))
|
|
return th;
|
|
|
|
th = (thread_info *) xmalloc (sizeof (*th));
|
|
memset (th, 0, sizeof (*th));
|
|
th->id = id;
|
|
th->h = h;
|
|
th->next = thread_head.next;
|
|
thread_head.next = th;
|
|
add_thread (id);
|
|
return th;
|
|
}
|
|
|
|
/* Clear out any old thread list and reintialize it to a
|
|
pristine state. */
|
|
static void
|
|
child_init_thread_list (void)
|
|
{
|
|
thread_info *th = &thread_head;
|
|
|
|
DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
|
|
init_thread_list ();
|
|
while (th->next != NULL)
|
|
{
|
|
thread_info *here = th->next;
|
|
th->next = here->next;
|
|
(void) close_handle (here->h);
|
|
xfree (here);
|
|
}
|
|
}
|
|
|
|
/* Delete a thread from the list of threads */
|
|
static void
|
|
child_delete_thread (DWORD id)
|
|
{
|
|
thread_info *th;
|
|
|
|
if (info_verbose)
|
|
printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id));
|
|
delete_thread (id);
|
|
|
|
for (th = &thread_head;
|
|
th->next != NULL && th->next->id != id;
|
|
th = th->next)
|
|
continue;
|
|
|
|
if (th->next != NULL)
|
|
{
|
|
thread_info *here = th->next;
|
|
th->next = here->next;
|
|
close_handle (here->h);
|
|
xfree (here);
|
|
}
|
|
}
|
|
|
|
static void
|
|
check (BOOL ok, const char *file, int line)
|
|
{
|
|
if (!ok)
|
|
printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
|
|
}
|
|
|
|
static void
|
|
do_child_fetch_inferior_registers (int r)
|
|
{
|
|
if (r >= 0)
|
|
{
|
|
supply_register (r, (char *) regptr (¤t_thread->context, r));
|
|
}
|
|
else
|
|
{
|
|
for (r = 0; r < NUM_REGS; r++)
|
|
do_child_fetch_inferior_registers (r);
|
|
}
|
|
}
|
|
|
|
static void
|
|
child_fetch_inferior_registers (int r)
|
|
{
|
|
current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
|
|
do_child_fetch_inferior_registers (r);
|
|
}
|
|
|
|
static void
|
|
do_child_store_inferior_registers (int r)
|
|
{
|
|
if (r >= 0)
|
|
deprecated_read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]);
|
|
else
|
|
{
|
|
for (r = 0; r < NUM_REGS; r++)
|
|
do_child_store_inferior_registers (r);
|
|
}
|
|
}
|
|
|
|
/* Store a new register value into the current thread context */
|
|
static void
|
|
child_store_inferior_registers (int r)
|
|
{
|
|
current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
|
|
do_child_store_inferior_registers (r);
|
|
}
|
|
|
|
/* Wait for child to do something. Return pid of child, or -1 in case
|
|
of error; store status through argument pointer OURSTATUS. */
|
|
|
|
static int
|
|
handle_load_dll (void *dummy)
|
|
{
|
|
LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
|
|
char dll_buf[MAX_PATH + 1];
|
|
char *p, *bufp, *imgp, *dll_name, *dll_basename;
|
|
int len;
|
|
|
|
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
|
|
if (!event->lpImageName)
|
|
return 1;
|
|
|
|
len = 0;
|
|
for (bufp = dll_buf, imgp = event->lpImageName;
|
|
bufp < dll_buf + sizeof (dll_buf);
|
|
bufp += 16, imgp += 16)
|
|
{
|
|
gdb_wince_len nbytes = 0;
|
|
(void) read_process_memory (current_process_handle,
|
|
imgp, bufp, 16, &nbytes);
|
|
|
|
if (!nbytes && bufp == dll_buf)
|
|
return 1; /* couldn't read it */
|
|
for (p = bufp; p < bufp + nbytes; p++)
|
|
{
|
|
len++;
|
|
if (*p == '\0')
|
|
goto out;
|
|
if (event->fUnicode)
|
|
p++;
|
|
}
|
|
if (!nbytes)
|
|
break;
|
|
}
|
|
|
|
out:
|
|
if (!len)
|
|
return 1;
|
|
#if 0
|
|
dll_buf[len] = '\0';
|
|
#endif
|
|
dll_name = alloca (len);
|
|
|
|
if (!dll_name)
|
|
return 1;
|
|
|
|
if (!event->fUnicode)
|
|
memcpy (dll_name, dll_buf, len);
|
|
else
|
|
WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) dll_buf, len,
|
|
dll_name, len, 0, 0);
|
|
|
|
while ((p = strchr (dll_name, '\\')))
|
|
*p = '/';
|
|
|
|
/* FIXME!! It would be nice to define one symbol which pointed to the
|
|
front of the dll if we can't find any symbols. */
|
|
|
|
if (!(dll_basename = strrchr (dll_name, '/')))
|
|
dll_basename = dll_name;
|
|
else
|
|
dll_basename++;
|
|
|
|
/* The symbols in a dll are offset by 0x1000, which is the
|
|
the offset from 0 of the first byte in an image - because
|
|
of the file header and the section alignment.
|
|
|
|
FIXME: Is this the real reason that we need the 0x1000 ? */
|
|
|
|
printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name);
|
|
printf_unfiltered ("\n");
|
|
|
|
return 1;
|
|
}
|
|
|
|
/* Handle DEBUG_STRING output from child process. */
|
|
static void
|
|
handle_output_debug_string (struct target_waitstatus *ourstatus)
|
|
{
|
|
char p[256];
|
|
char s[255];
|
|
char *q;
|
|
gdb_wince_len nbytes_read;
|
|
gdb_wince_len nbytes = current_event.u.DebugString.nDebugStringLength;
|
|
|
|
if (nbytes > 255)
|
|
nbytes = 255;
|
|
|
|
memset (p, 0, sizeof (p));
|
|
if (!read_process_memory (current_process_handle,
|
|
current_event.u.DebugString.lpDebugStringData,
|
|
&p, nbytes, &nbytes_read)
|
|
|| !*p)
|
|
return;
|
|
|
|
memset (s, 0, sizeof (s));
|
|
WideCharToMultiByte (CP_ACP, 0, (LPCWSTR) p, (int) nbytes_read, s,
|
|
sizeof (s) - 1, NULL, NULL);
|
|
q = strchr (s, '\n');
|
|
if (q != NULL)
|
|
{
|
|
*q = '\0';
|
|
if (*--q = '\r')
|
|
*q = '\0';
|
|
}
|
|
|
|
warning (s);
|
|
|
|
return;
|
|
}
|
|
|
|
/* Handle target exceptions. */
|
|
static int
|
|
handle_exception (struct target_waitstatus *ourstatus)
|
|
{
|
|
#if 0
|
|
if (current_event.u.Exception.dwFirstChance)
|
|
return 0;
|
|
#endif
|
|
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
|
|
|
switch (current_event.u.Exception.ExceptionRecord.ExceptionCode)
|
|
{
|
|
case EXCEPTION_ACCESS_VIOLATION:
|
|
DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
|
|
(unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
|
|
break;
|
|
case STATUS_STACK_OVERFLOW:
|
|
DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
|
|
(unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
|
|
break;
|
|
case EXCEPTION_BREAKPOINT:
|
|
DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
|
|
(unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
|
break;
|
|
case DBG_CONTROL_C:
|
|
DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
|
|
(unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = TARGET_SIGNAL_INT;
|
|
/* User typed CTRL-C. Continue with this status */
|
|
last_sig = SIGINT; /* FIXME - should check pass state */
|
|
break;
|
|
case EXCEPTION_SINGLE_STEP:
|
|
DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
|
|
(unsigned) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
|
break;
|
|
case EXCEPTION_ILLEGAL_INSTRUCTION:
|
|
DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08x\n",
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
ourstatus->value.sig = check_for_step (¤t_event, TARGET_SIGNAL_ILL);
|
|
break;
|
|
default:
|
|
/* This may be a structured exception handling exception. In
|
|
that case, we want to let the program try to handle it, and
|
|
only break if we see the exception a second time. */
|
|
|
|
printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
|
|
current_event.u.Exception.ExceptionRecord.ExceptionCode,
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress);
|
|
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
|
|
break;
|
|
}
|
|
exception_count++;
|
|
return 1;
|
|
}
|
|
|
|
/* Resume all artificially suspended threads if we are continuing
|
|
execution */
|
|
static BOOL
|
|
child_continue (DWORD continue_status, int id)
|
|
{
|
|
int i;
|
|
thread_info *th;
|
|
BOOL res;
|
|
|
|
DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
|
|
(unsigned) current_event.dwProcessId, (unsigned) current_event.dwThreadId));
|
|
res = continue_debug_event (current_event.dwProcessId,
|
|
current_event.dwThreadId,
|
|
continue_status);
|
|
if (res)
|
|
for (th = &thread_head; (th = th->next) != NULL;)
|
|
if (((id == -1) || (id == th->id)) && th->suspend_count)
|
|
{
|
|
for (i = 0; i < th->suspend_count; i++)
|
|
(void) resume_thread (th->h);
|
|
th->suspend_count = 0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Get the next event from the child. Return 1 if the event requires
|
|
handling by WFI (or whatever).
|
|
*/
|
|
static int
|
|
get_child_debug_event (int pid, struct target_waitstatus *ourstatus,
|
|
DWORD target_event_code, int *retval)
|
|
{
|
|
int breakout = 0;
|
|
BOOL debug_event;
|
|
DWORD continue_status, event_code;
|
|
thread_info *th = NULL;
|
|
static thread_info dummy_thread_info;
|
|
|
|
if (!(debug_event = wait_for_debug_event (¤t_event, 1000)))
|
|
{
|
|
*retval = 0;
|
|
goto out;
|
|
}
|
|
|
|
event_count++;
|
|
continue_status = DBG_CONTINUE;
|
|
*retval = 0;
|
|
|
|
event_code = current_event.dwDebugEventCode;
|
|
breakout = event_code == target_event_code;
|
|
|
|
switch (event_code)
|
|
{
|
|
case CREATE_THREAD_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"CREATE_THREAD_DEBUG_EVENT"));
|
|
/* Record the existence of this thread */
|
|
th = child_add_thread (current_event.dwThreadId,
|
|
current_event.u.CreateThread.hThread);
|
|
if (info_verbose)
|
|
printf_unfiltered ("[New %s]\n",
|
|
target_pid_to_str (current_event.dwThreadId));
|
|
break;
|
|
|
|
case EXIT_THREAD_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"EXIT_THREAD_DEBUG_EVENT"));
|
|
child_delete_thread (current_event.dwThreadId);
|
|
th = &dummy_thread_info;
|
|
break;
|
|
|
|
case CREATE_PROCESS_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"CREATE_PROCESS_DEBUG_EVENT"));
|
|
current_process_handle = current_event.u.CreateProcessInfo.hProcess;
|
|
|
|
main_thread_id = current_event.dwThreadId;
|
|
inferior_ptid = pid_to_ptid (main_thread_id);
|
|
/* Add the main thread */
|
|
th = child_add_thread (PIDGET (inferior_ptid),
|
|
current_event.u.CreateProcessInfo.hThread);
|
|
break;
|
|
|
|
case EXIT_PROCESS_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"EXIT_PROCESS_DEBUG_EVENT"));
|
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
|
ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
|
|
close_handle (current_process_handle);
|
|
*retval = current_event.dwProcessId;
|
|
breakout = 1;
|
|
break;
|
|
|
|
case LOAD_DLL_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"LOAD_DLL_DEBUG_EVENT"));
|
|
catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL);
|
|
registers_changed (); /* mark all regs invalid */
|
|
break;
|
|
|
|
case UNLOAD_DLL_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"UNLOAD_DLL_DEBUG_EVENT"));
|
|
break; /* FIXME: don't know what to do here */
|
|
|
|
case EXCEPTION_DEBUG_EVENT:
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"EXCEPTION_DEBUG_EVENT"));
|
|
if (handle_exception (ourstatus))
|
|
*retval = current_event.dwThreadId;
|
|
else
|
|
{
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
|
breakout = 0;
|
|
}
|
|
break;
|
|
|
|
case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
(unsigned) current_event.dwProcessId,
|
|
(unsigned) current_event.dwThreadId,
|
|
"OUTPUT_DEBUG_STRING_EVENT"));
|
|
handle_output_debug_string ( ourstatus);
|
|
break;
|
|
default:
|
|
printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
|
|
current_event.dwProcessId,
|
|
current_event.dwThreadId);
|
|
printf_unfiltered (" unknown event code %d\n",
|
|
current_event.dwDebugEventCode);
|
|
break;
|
|
}
|
|
|
|
if (breakout)
|
|
this_thread = current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE);
|
|
else
|
|
CHECK (child_continue (continue_status, -1));
|
|
|
|
out:
|
|
return breakout;
|
|
}
|
|
|
|
/* Wait for interesting events to occur in the target process. */
|
|
static ptid_t
|
|
child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
|
|
{
|
|
DWORD event_code;
|
|
int retval;
|
|
int pid = PIDGET (ptid);
|
|
|
|
/* We loop when we get a non-standard exception rather than return
|
|
with a SPURIOUS because resume can try and step or modify things,
|
|
which needs a current_thread->h. But some of these exceptions mark
|
|
the birth or death of threads, which mean that the current thread
|
|
isn't necessarily what you think it is. */
|
|
|
|
while (1)
|
|
if (get_child_debug_event (pid, ourstatus, EXCEPTION_DEBUG_EVENT, &retval))
|
|
return pid_to_ptid (retval);
|
|
else
|
|
{
|
|
int detach = 0;
|
|
|
|
if (ui_loop_hook != NULL)
|
|
detach = ui_loop_hook (0);
|
|
|
|
if (detach)
|
|
child_kill_inferior ();
|
|
}
|
|
}
|
|
|
|
/* Print status information about what we're accessing. */
|
|
|
|
static void
|
|
child_files_info (struct target_ops *ignore)
|
|
{
|
|
printf_unfiltered ("\tUsing the running image of child %s.\n",
|
|
target_pid_to_str (inferior_ptid));
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
static void
|
|
child_open (char *arg, int from_tty)
|
|
{
|
|
error ("Use the \"run\" command to start a child process.");
|
|
}
|
|
|
|
#define FACTOR (0x19db1ded53ea710LL)
|
|
#define NSPERSEC 10000000
|
|
|
|
/* Convert a Win32 time to "UNIX" format. */
|
|
long
|
|
to_time_t (FILETIME * ptr)
|
|
{
|
|
/* A file time is the number of 100ns since jan 1 1601
|
|
stuffed into two long words.
|
|
A time_t is the number of seconds since jan 1 1970. */
|
|
|
|
long rem;
|
|
long long x = ((long long) ptr->dwHighDateTime << 32) + ((unsigned) ptr->dwLowDateTime);
|
|
x -= FACTOR; /* number of 100ns between 1601 and 1970 */
|
|
rem = x % ((long long) NSPERSEC);
|
|
rem += (NSPERSEC / 2);
|
|
x /= (long long) NSPERSEC; /* number of 100ns in a second */
|
|
x += (long long) (rem / NSPERSEC);
|
|
return x;
|
|
}
|
|
|
|
/* Upload a file to the remote device depending on the user's
|
|
'set remoteupload' specification. */
|
|
char *
|
|
upload_to_device (const char *to, const char *from)
|
|
{
|
|
HANDLE h;
|
|
const char *dir = remote_directory ?: "\\gdb";
|
|
int len;
|
|
static char *remotefile = NULL;
|
|
LPWSTR wstr;
|
|
char *p;
|
|
DWORD err;
|
|
const char *in_to = to;
|
|
FILETIME crtime, actime, wrtime;
|
|
time_t utime;
|
|
struct stat st;
|
|
int fd;
|
|
|
|
/* Look for a path separator and only use trailing part. */
|
|
while ((p = strpbrk (to, "/\\")) != NULL)
|
|
to = p + 1;
|
|
|
|
if (!*to)
|
|
error ("no filename found to upload - %s.", in_to);
|
|
|
|
len = strlen (dir) + strlen (to) + 2;
|
|
remotefile = (char *) xrealloc (remotefile, len);
|
|
strcpy (remotefile, dir);
|
|
strcat (remotefile, "\\");
|
|
strcat (remotefile, to);
|
|
|
|
if (upload_when == UPLOAD_NEVER)
|
|
return remotefile; /* Don't bother uploading. */
|
|
|
|
/* Open the source. */
|
|
if ((fd = openp (getenv ("PATH"), TRUE, (char *) from, O_RDONLY, 0, NULL)) < 0)
|
|
error ("couldn't open %s", from);
|
|
|
|
/* Get the time for later comparison. */
|
|
if (fstat (fd, &st))
|
|
st.st_mtime = (time_t) - 1;
|
|
|
|
/* Always attempt to create the directory on the remote system. */
|
|
wstr = towide (dir, NULL);
|
|
(void) CeCreateDirectory (wstr, NULL);
|
|
|
|
/* Attempt to open the remote file, creating it if it doesn't exist. */
|
|
wstr = towide (remotefile, NULL);
|
|
h = CeCreateFile (wstr, GENERIC_READ | GENERIC_WRITE, 0, NULL,
|
|
OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
|
|
|
|
/* Some kind of problem? */
|
|
err = CeGetLastError ();
|
|
if (h == NULL || h == INVALID_HANDLE_VALUE)
|
|
error ("error opening file \"%s\". Windows error %d.",
|
|
remotefile, err);
|
|
|
|
CeGetFileTime (h, &crtime, &actime, &wrtime);
|
|
utime = to_time_t (&wrtime);
|
|
#if 0
|
|
if (utime < st.st_mtime)
|
|
{
|
|
char buf[80];
|
|
strcpy (buf, ctime(&utime));
|
|
printf ("%s < %s\n", buf, ctime(&st.st_mtime));
|
|
}
|
|
#endif
|
|
/* See if we need to upload the file. */
|
|
if (upload_when == UPLOAD_ALWAYS ||
|
|
err != ERROR_ALREADY_EXISTS ||
|
|
!CeGetFileTime (h, &crtime, &actime, &wrtime) ||
|
|
to_time_t (&wrtime) < st.st_mtime)
|
|
{
|
|
DWORD nbytes;
|
|
char buf[4096];
|
|
int n;
|
|
|
|
/* Upload the file. */
|
|
while ((n = read (fd, buf, sizeof (buf))) > 0)
|
|
if (!CeWriteFile (h, buf, (DWORD) n, &nbytes, NULL))
|
|
error ("error writing to remote device - %d.",
|
|
CeGetLastError ());
|
|
}
|
|
|
|
close (fd);
|
|
if (!CeCloseHandle (h))
|
|
error ("error closing remote file - %d.", CeGetLastError ());
|
|
|
|
return remotefile;
|
|
}
|
|
|
|
/* Initialize the connection to the remote device. */
|
|
static void
|
|
wince_initialize (void)
|
|
{
|
|
int tmp;
|
|
char args[256];
|
|
char *hostname;
|
|
struct sockaddr_in sin;
|
|
char *stub_file_name;
|
|
int s0;
|
|
PROCESS_INFORMATION pi;
|
|
|
|
if (!connection_initialized)
|
|
switch (CeRapiInit ())
|
|
{
|
|
case 0:
|
|
connection_initialized = 1;
|
|
break;
|
|
default:
|
|
CeRapiUninit ();
|
|
error ("Can't initialize connection to remote device.\n");
|
|
break;
|
|
}
|
|
|
|
/* Upload the stub to the handheld device. */
|
|
stub_file_name = upload_to_device ("wince-stub.exe", WINCE_STUB);
|
|
strcpy (args, stub_file_name);
|
|
|
|
if (remote_add_host)
|
|
{
|
|
strcat (args, " ");
|
|
hostname = strchr (args, '\0');
|
|
if (gethostname (hostname, sizeof (args) - strlen (args)))
|
|
error ("couldn't get hostname of this system.");
|
|
}
|
|
|
|
/* Get a socket. */
|
|
if ((s0 = socket (AF_INET, SOCK_STREAM, 0)) < 0)
|
|
stub_error ("Couldn't connect to host system.");
|
|
|
|
/* Allow rapid reuse of the port. */
|
|
tmp = 1;
|
|
(void) setsockopt (s0, SOL_SOCKET, SO_REUSEADDR, (char *) &tmp, sizeof (tmp));
|
|
|
|
|
|
/* Set up the information for connecting to the host gdb process. */
|
|
memset (&sin, 0, sizeof (sin));
|
|
sin.sin_family = AF_INET;
|
|
sin.sin_port = htons (7000); /* FIXME: This should be configurable */
|
|
|
|
if (bind (s0, (struct sockaddr *) &sin, sizeof (sin)))
|
|
error ("couldn't bind socket");
|
|
|
|
if (listen (s0, 1))
|
|
error ("Couldn't open socket for listening.\n");
|
|
|
|
/* Start up the stub on the remote device. */
|
|
if (!CeCreateProcess (towide (stub_file_name, NULL), towide (args, NULL),
|
|
NULL, NULL, 0, 0, NULL, NULL, NULL, &pi))
|
|
error ("Unable to start remote stub '%s'. Windows CE error %d.",
|
|
stub_file_name, CeGetLastError ());
|
|
|
|
/* Wait for a connection */
|
|
|
|
if ((s = accept (s0, NULL, NULL)) < 0)
|
|
error ("couldn't set up server for connection.");
|
|
|
|
close (s0);
|
|
}
|
|
|
|
/* Start an inferior win32 child process and sets inferior_ptid to its pid.
|
|
EXEC_FILE is the file to run.
|
|
ALLARGS is a string containing the arguments to the program.
|
|
ENV is the environment vector to pass. Errors reported with error(). */
|
|
static void
|
|
child_create_inferior (char *exec_file, char *args, char **env)
|
|
{
|
|
PROCESS_INFORMATION pi;
|
|
struct target_waitstatus dummy;
|
|
int ret;
|
|
DWORD flags, event_code;
|
|
char *exec_and_args;
|
|
|
|
if (!exec_file)
|
|
error ("No executable specified, use `target exec'.\n");
|
|
|
|
flags = DEBUG_PROCESS;
|
|
|
|
wince_initialize (); /* Make sure we've got a connection. */
|
|
|
|
exec_file = upload_to_device (exec_file, exec_file);
|
|
|
|
while (*args == ' ')
|
|
args++;
|
|
|
|
/* Allocate space for "command<sp>args" */
|
|
if (*args == '\0')
|
|
{
|
|
exec_and_args = alloca (strlen (exec_file) + 1);
|
|
strcpy (exec_and_args, exec_file);
|
|
}
|
|
else
|
|
{
|
|
exec_and_args = alloca (strlen (exec_file + strlen (args) + 2));
|
|
sprintf (exec_and_args, "%s %s", exec_file, args);
|
|
}
|
|
|
|
memset (&pi, 0, sizeof (pi));
|
|
/* Execute the process */
|
|
if (!create_process (exec_file, exec_and_args, flags, &pi))
|
|
error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
|
|
|
|
exception_count = 0;
|
|
event_count = 0;
|
|
|
|
current_process_handle = pi.hProcess;
|
|
current_event.dwProcessId = pi.dwProcessId;
|
|
memset (¤t_event, 0, sizeof (current_event));
|
|
current_event.dwThreadId = pi.dwThreadId;
|
|
inferior_ptid = pid_to_ptid (current_event.dwThreadId);
|
|
push_target (&child_ops);
|
|
child_init_thread_list ();
|
|
child_add_thread (pi.dwThreadId, pi.hThread);
|
|
init_wait_for_inferior ();
|
|
clear_proceed_status ();
|
|
target_terminal_init ();
|
|
target_terminal_inferior ();
|
|
|
|
/* Run until process and threads are loaded */
|
|
while (!get_child_debug_event (PIDGET (inferior_ptid), &dummy,
|
|
CREATE_PROCESS_DEBUG_EVENT, &ret))
|
|
continue;
|
|
|
|
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0);
|
|
}
|
|
|
|
/* Chile has gone bye-bye. */
|
|
static void
|
|
child_mourn_inferior (void)
|
|
{
|
|
(void) child_continue (DBG_CONTINUE, -1);
|
|
unpush_target (&child_ops);
|
|
stop_stub ();
|
|
CeRapiUninit ();
|
|
connection_initialized = 0;
|
|
generic_mourn_inferior ();
|
|
}
|
|
|
|
/* Move memory from child to/from gdb. */
|
|
int
|
|
child_xfer_memory (CORE_ADDR memaddr, char *our, int len, int write,
|
|
struct mem_attrib *attrib,
|
|
struct target_ops *target)
|
|
{
|
|
if (len <= 0)
|
|
return 0;
|
|
|
|
if (write)
|
|
res = remote_write_bytes (memaddr, our, len);
|
|
else
|
|
res = remote_read_bytes (memaddr, our, len);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* Terminate the process and wait for child to tell us it has completed. */
|
|
void
|
|
child_kill_inferior (void)
|
|
{
|
|
CHECK (terminate_process (current_process_handle));
|
|
|
|
for (;;)
|
|
{
|
|
if (!child_continue (DBG_CONTINUE, -1))
|
|
break;
|
|
if (!wait_for_debug_event (¤t_event, INFINITE))
|
|
break;
|
|
if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
|
|
break;
|
|
}
|
|
|
|
CHECK (close_handle (current_process_handle));
|
|
close_handle (current_thread->h);
|
|
target_mourn_inferior (); /* or just child_mourn_inferior? */
|
|
}
|
|
|
|
/* Resume the child after an exception. */
|
|
void
|
|
child_resume (ptid_t ptid, int step, enum target_signal sig)
|
|
{
|
|
thread_info *th;
|
|
DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
|
|
DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
|
|
int pid = PIDGET (ptid);
|
|
|
|
DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
|
|
pid, step, sig));
|
|
|
|
/* Get context for currently selected thread */
|
|
th = thread_rec (current_event.dwThreadId, FALSE);
|
|
|
|
if (th->context.ContextFlags)
|
|
{
|
|
CHECK (set_thread_context (th->h, &th->context));
|
|
th->context.ContextFlags = 0;
|
|
}
|
|
|
|
/* Allow continuing with the same signal that interrupted us.
|
|
Otherwise complain. */
|
|
if (sig && sig != last_sig)
|
|
fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig);
|
|
|
|
last_sig = 0;
|
|
child_continue (continue_status, pid);
|
|
}
|
|
|
|
static void
|
|
child_prepare_to_store (void)
|
|
{
|
|
/* Do nothing, since we can store individual regs */
|
|
}
|
|
|
|
static int
|
|
child_can_run (void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
child_close (void)
|
|
{
|
|
DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n",
|
|
PIDGET (inferior_ptid)));
|
|
}
|
|
|
|
/* Explicitly upload file to remotedir */
|
|
|
|
static void
|
|
child_load (char *file, int from_tty)
|
|
{
|
|
upload_to_device (file, file);
|
|
}
|
|
|
|
struct target_ops child_ops;
|
|
|
|
static void
|
|
init_child_ops (void)
|
|
{
|
|
memset (&child_ops, 0, sizeof (child_ops));
|
|
child_ops.to_shortname = (char *) "child";
|
|
child_ops.to_longname = (char *) "Windows CE process";
|
|
child_ops.to_doc = (char *) "Windows CE process (started by the \"run\" command).";
|
|
child_ops.to_open = child_open;
|
|
child_ops.to_close = child_close;
|
|
child_ops.to_resume = child_resume;
|
|
child_ops.to_wait = child_wait;
|
|
child_ops.to_fetch_registers = child_fetch_inferior_registers;
|
|
child_ops.to_store_registers = child_store_inferior_registers;
|
|
child_ops.to_prepare_to_store = child_prepare_to_store;
|
|
child_ops.to_xfer_memory = child_xfer_memory;
|
|
child_ops.to_files_info = child_files_info;
|
|
child_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
|
child_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
|
child_ops.to_terminal_init = terminal_init_inferior;
|
|
child_ops.to_terminal_inferior = terminal_inferior;
|
|
child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
|
child_ops.to_terminal_ours = terminal_ours;
|
|
child_ops.to_terminal_save_ours = terminal_save_ours;
|
|
child_ops.to_terminal_info = child_terminal_info;
|
|
child_ops.to_kill = child_kill_inferior;
|
|
child_ops.to_load = child_load;
|
|
child_ops.to_create_inferior = child_create_inferior;
|
|
child_ops.to_mourn_inferior = child_mourn_inferior;
|
|
child_ops.to_can_run = child_can_run;
|
|
child_ops.to_thread_alive = win32_child_thread_alive;
|
|
child_ops.to_stratum = process_stratum;
|
|
child_ops.to_has_all_memory = 1;
|
|
child_ops.to_has_memory = 1;
|
|
child_ops.to_has_stack = 1;
|
|
child_ops.to_has_registers = 1;
|
|
child_ops.to_has_execution = 1;
|
|
child_ops.to_magic = OPS_MAGIC;
|
|
}
|
|
|
|
|
|
/* Handle 'set remoteupload' parameter. */
|
|
|
|
#define replace_upload(what) \
|
|
upload_when = what; \
|
|
remote_upload = xrealloc (remote_upload, strlen (upload_options[upload_when].name) + 1); \
|
|
strcpy (remote_upload, upload_options[upload_when].name);
|
|
|
|
static void
|
|
set_upload_type (char *ignore, int from_tty)
|
|
{
|
|
int i, len;
|
|
char *bad_option;
|
|
|
|
if (!remote_upload || !remote_upload[0])
|
|
{
|
|
replace_upload (UPLOAD_NEWER);
|
|
if (from_tty)
|
|
printf_unfiltered ("Upload upload_options are: always, newer, never.\n");
|
|
return;
|
|
}
|
|
|
|
len = strlen (remote_upload);
|
|
for (i = 0; i < (sizeof (upload_options) / sizeof (upload_options[0])); i++)
|
|
if (len >= upload_options[i].abbrev &&
|
|
strncasecmp (remote_upload, upload_options[i].name, len) == 0)
|
|
{
|
|
replace_upload (i);
|
|
return;
|
|
}
|
|
|
|
bad_option = remote_upload;
|
|
replace_upload (UPLOAD_NEWER);
|
|
error ("Unknown upload type: %s.", bad_option);
|
|
}
|
|
|
|
void
|
|
_initialize_wince (void)
|
|
{
|
|
struct cmd_list_element *set;
|
|
init_child_ops ();
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "remotedirectory", no_class,
|
|
var_string_noescape, (char *) &remote_directory,
|
|
(char *) "Set directory for remote upload.\n",
|
|
&setlist),
|
|
&showlist);
|
|
remote_directory = xstrdup (remote_directory);
|
|
|
|
set = add_set_cmd ((char *) "remoteupload", no_class,
|
|
var_string_noescape, (char *) &remote_upload,
|
|
(char *) "Set how to upload executables to remote device.\n",
|
|
&setlist);
|
|
add_show_from_set (set, &showlist);
|
|
set_cmd_cfunc (set, set_upload_type);
|
|
set_upload_type (NULL, 0);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "debugexec", class_support, var_boolean,
|
|
(char *) &debug_exec,
|
|
(char *) "Set whether to display execution in child process.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "remoteaddhost", class_support, var_boolean,
|
|
(char *) &remote_add_host,
|
|
(char *) "Set whether to add this host to remote stub arguments for\n
|
|
debugging over a network.", &setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "debugevents", class_support, var_boolean,
|
|
(char *) &debug_events,
|
|
(char *) "Set whether to display kernel events in child process.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "debugmemory", class_support, var_boolean,
|
|
(char *) &debug_memory,
|
|
(char *) "Set whether to display memory accesses in child process.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_show_from_set
|
|
(add_set_cmd ((char *) "debugexceptions", class_support, var_boolean,
|
|
(char *) &debug_exceptions,
|
|
(char *) "Set whether to display kernel exceptions in child process.",
|
|
&setlist),
|
|
&showlist);
|
|
|
|
add_target (&child_ops);
|
|
}
|
|
|
|
/* Determine if the thread referenced by "pid" is alive
|
|
by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0
|
|
it means that the pid has died. Otherwise it is assumed to be alive. */
|
|
static int
|
|
win32_child_thread_alive (ptid_t ptid)
|
|
{
|
|
int pid = PIDGET (ptid);
|
|
return thread_alive (thread_rec (pid, FALSE)->h);
|
|
}
|
|
|
|
/* Convert pid to printable format. */
|
|
char *
|
|
cygwin_pid_to_str (int pid)
|
|
{
|
|
static char buf[80];
|
|
if (pid == current_event.dwProcessId)
|
|
sprintf (buf, "process %d", pid);
|
|
else
|
|
sprintf (buf, "thread %d.0x%x", (unsigned) current_event.dwProcessId, pid);
|
|
return buf;
|
|
}
|