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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [win32-nat.c] - Diff between revs 105 and 1765

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/* Target-vector operations for controlling win32 child processes, for GDB.
/* Target-vector operations for controlling win32 child processes, for GDB.
   Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
   Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
   Contributed by Cygnus Solutions, A Red Hat Company.
   Contributed by Cygnus Solutions, A Red Hat Company.
 
 
   This file is part of GDB.
   This file is part of GDB.
 
 
   This program is free software; you can redistribute it and/or modify
   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
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   (at your option) any later version.
 
 
   This program is distributed in the hope that it will be useful,
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without eve nthe implied warranty of
   but WITHOUT ANY WARRANTY; without eve nthe implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
   Boston, MA 02111-1307, USA.
 */
 */
 
 
/* by Steve Chamberlain, sac@cygnus.com */
/* by Steve Chamberlain, sac@cygnus.com */
 
 
/* We assume we're being built with and will be used for cygwin.  */
/* We assume we're being built with and will be used for cygwin.  */
 
 
#include "defs.h"
#include "defs.h"
#include "frame.h"              /* required by inferior.h */
#include "frame.h"              /* required by inferior.h */
#include "inferior.h"
#include "inferior.h"
#include "target.h"
#include "target.h"
#include "gdbcore.h"
#include "gdbcore.h"
#include "command.h"
#include "command.h"
#include <signal.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/types.h>
#include <fcntl.h>
#include <fcntl.h>
#include <stdlib.h>
#include <stdlib.h>
 
 
#ifdef _MSC_VER
#ifdef _MSC_VER
#include "windefs.h"
#include "windefs.h"
#else /* other WIN32 compiler */
#else /* other WIN32 compiler */
#include <windows.h>
#include <windows.h>
#include <imagehlp.h>
#include <imagehlp.h>
#endif
#endif
 
 
#include "buildsym.h"
#include "buildsym.h"
#include "symfile.h"
#include "symfile.h"
#include "objfiles.h"
#include "objfiles.h"
#include "gdb_string.h"
#include "gdb_string.h"
#include "gdbthread.h"
#include "gdbthread.h"
#include "gdbcmd.h"
#include "gdbcmd.h"
#include <sys/param.h>
#include <sys/param.h>
#include <unistd.h>
#include <unistd.h>
 
 
/* The ui's event loop. */
/* The ui's event loop. */
extern int (*ui_loop_hook) PARAMS ((int signo));
extern int (*ui_loop_hook) PARAMS ((int signo));
 
 
/* If we're not using the old Cygwin header file set, define the
/* If we're not using the old Cygwin header file set, define the
   following which never should have been in the generic Win32 API
   following which never should have been in the generic Win32 API
   headers in the first place since they were our own invention... */
   headers in the first place since they were our own invention... */
#ifndef _GNU_H_WINDOWS_H
#ifndef _GNU_H_WINDOWS_H
#define FLAG_TRACE_BIT 0x100
#define FLAG_TRACE_BIT 0x100
#define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
#define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
#endif
#endif
 
 
/* The string sent by cygwin when it processes a signal.
/* The string sent by cygwin when it processes a signal.
   FIXME: This should be in a cygwin include file. */
   FIXME: This should be in a cygwin include file. */
#define CYGWIN_SIGNAL_STRING "cygwin: signal"
#define CYGWIN_SIGNAL_STRING "cygwin: signal"
 
 
#define CHECK(x)        check (x, __FILE__,__LINE__)
#define CHECK(x)        check (x, __FILE__,__LINE__)
#define DEBUG_EXEC(x)   if (debug_exec)         printf x
#define DEBUG_EXEC(x)   if (debug_exec)         printf x
#define DEBUG_EVENTS(x) if (debug_events)       printf x
#define DEBUG_EVENTS(x) if (debug_events)       printf x
#define DEBUG_MEM(x)    if (debug_memory)       printf x
#define DEBUG_MEM(x)    if (debug_memory)       printf x
#define DEBUG_EXCEPT(x) if (debug_exceptions)   printf x
#define DEBUG_EXCEPT(x) if (debug_exceptions)   printf x
 
 
/* Forward declaration */
/* Forward declaration */
extern struct target_ops child_ops;
extern struct target_ops child_ops;
 
 
static void child_stop PARAMS ((void));
static void child_stop PARAMS ((void));
static int win32_child_thread_alive PARAMS ((int));
static int win32_child_thread_alive PARAMS ((int));
void child_kill_inferior PARAMS ((void));
void child_kill_inferior PARAMS ((void));
 
 
static int last_sig = 0; /* Set if a signal was received from the
static int last_sig = 0; /* Set if a signal was received from the
                                   debugged process */
                                   debugged process */
 
 
/* Thread information structure used to track information that is
/* Thread information structure used to track information that is
   not available in gdb's thread structure. */
   not available in gdb's thread structure. */
typedef struct thread_info_struct
typedef struct thread_info_struct
  {
  {
    struct thread_info_struct *next;
    struct thread_info_struct *next;
    DWORD id;
    DWORD id;
    HANDLE h;
    HANDLE h;
    char *name;
    char *name;
    int suspend_count;
    int suspend_count;
    CONTEXT context;
    CONTEXT context;
    STACKFRAME sf;
    STACKFRAME sf;
  } thread_info;
  } thread_info;
 
 
static thread_info thread_head = {NULL};
static thread_info thread_head = {NULL};
 
 
/* The process and thread handles for the above context. */
/* The process and thread handles for the above context. */
 
 
static DEBUG_EVENT current_event;       /* The current debug event from
static DEBUG_EVENT current_event;       /* The current debug event from
                                           WaitForDebugEvent */
                                           WaitForDebugEvent */
static HANDLE current_process_handle;   /* Currently executing process */
static HANDLE current_process_handle;   /* Currently executing process */
static thread_info *current_thread;     /* Info on currently selected thread */
static thread_info *current_thread;     /* Info on currently selected thread */
static DWORD main_thread_id;    /* Thread ID of the main thread */
static DWORD main_thread_id;    /* Thread ID of the main thread */
static int ignore_first_first_chance = 0; /* True if we should ignore the
static int ignore_first_first_chance = 0; /* True if we should ignore the
                                             first first chance exception that we get. */
                                             first first chance exception that we get. */
 
 
/* Counts of things. */
/* Counts of things. */
static int exception_count = 0;
static int exception_count = 0;
static int event_count = 0;
static int event_count = 0;
 
 
/* User options. */
/* User options. */
static int new_console = 0;
static int new_console = 0;
static int new_group = 1;
static int new_group = 1;
static int debug_exec = 0;       /* show execution */
static int debug_exec = 0;       /* show execution */
static int debug_events = 0;     /* show events from kernel */
static int debug_events = 0;     /* show events from kernel */
static int debug_memory = 0;     /* show target memory accesses */
static int debug_memory = 0;     /* show target memory accesses */
static int debug_exceptions = 0; /* show target exceptions */
static int debug_exceptions = 0; /* show target exceptions */
 
 
/* This vector maps GDB's idea of a register's number into an address
/* This vector maps GDB's idea of a register's number into an address
   in the win32 exception context vector.
   in the win32 exception context vector.
 
 
   It also contains the bit mask needed to load the register in question.
   It also contains the bit mask needed to load the register in question.
 
 
   One day we could read a reg, we could inspect the context we
   One day we could read a reg, we could inspect the context we
   already have loaded, if it doesn't have the bit set that we need,
   already have loaded, if it doesn't have the bit set that we need,
   we read that set of registers in using GetThreadContext.  If the
   we read that set of registers in using GetThreadContext.  If the
   context already contains what we need, we just unpack it. Then to
   context already contains what we need, we just unpack it. Then to
   write a register, first we have to ensure that the context contains
   write a register, first we have to ensure that the context contains
   the other regs of the group, and then we copy the info in and set
   the other regs of the group, and then we copy the info in and set
   out bit. */
   out bit. */
 
 
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
static const int mappings[] =
static const int mappings[] =
{
{
  context_offset (Eax),
  context_offset (Eax),
  context_offset (Ecx),
  context_offset (Ecx),
  context_offset (Edx),
  context_offset (Edx),
  context_offset (Ebx),
  context_offset (Ebx),
  context_offset (Esp),
  context_offset (Esp),
  context_offset (Ebp),
  context_offset (Ebp),
  context_offset (Esi),
  context_offset (Esi),
  context_offset (Edi),
  context_offset (Edi),
  context_offset (Eip),
  context_offset (Eip),
  context_offset (EFlags),
  context_offset (EFlags),
  context_offset (SegCs),
  context_offset (SegCs),
  context_offset (SegSs),
  context_offset (SegSs),
  context_offset (SegDs),
  context_offset (SegDs),
  context_offset (SegEs),
  context_offset (SegEs),
  context_offset (SegFs),
  context_offset (SegFs),
  context_offset (SegGs),
  context_offset (SegGs),
  context_offset (FloatSave.RegisterArea[0 * 10]),
  context_offset (FloatSave.RegisterArea[0 * 10]),
  context_offset (FloatSave.RegisterArea[1 * 10]),
  context_offset (FloatSave.RegisterArea[1 * 10]),
  context_offset (FloatSave.RegisterArea[2 * 10]),
  context_offset (FloatSave.RegisterArea[2 * 10]),
  context_offset (FloatSave.RegisterArea[3 * 10]),
  context_offset (FloatSave.RegisterArea[3 * 10]),
  context_offset (FloatSave.RegisterArea[4 * 10]),
  context_offset (FloatSave.RegisterArea[4 * 10]),
  context_offset (FloatSave.RegisterArea[5 * 10]),
  context_offset (FloatSave.RegisterArea[5 * 10]),
  context_offset (FloatSave.RegisterArea[6 * 10]),
  context_offset (FloatSave.RegisterArea[6 * 10]),
  context_offset (FloatSave.RegisterArea[7 * 10]),
  context_offset (FloatSave.RegisterArea[7 * 10]),
  context_offset (FloatSave.ControlWord),
  context_offset (FloatSave.ControlWord),
  context_offset (FloatSave.StatusWord),
  context_offset (FloatSave.StatusWord),
  context_offset (FloatSave.TagWord),
  context_offset (FloatSave.TagWord),
  context_offset (FloatSave.ErrorSelector),
  context_offset (FloatSave.ErrorSelector),
  context_offset (FloatSave.ErrorOffset),
  context_offset (FloatSave.ErrorOffset),
  context_offset (FloatSave.DataSelector),
  context_offset (FloatSave.DataSelector),
  context_offset (FloatSave.DataOffset),
  context_offset (FloatSave.DataOffset),
  context_offset (FloatSave.ErrorSelector)
  context_offset (FloatSave.ErrorSelector)
};
};
 
 
#undef context_offset
#undef context_offset
 
 
/* This vector maps the target's idea of an exception (extracted
/* This vector maps the target's idea of an exception (extracted
   from the DEBUG_EVENT structure) to GDB's idea. */
   from the DEBUG_EVENT structure) to GDB's idea. */
 
 
struct xlate_exception
struct xlate_exception
  {
  {
    int them;
    int them;
    enum target_signal us;
    enum target_signal us;
  };
  };
 
 
static const struct xlate_exception
static const struct xlate_exception
  xlate[] =
  xlate[] =
{
{
  {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV},
  {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV},
  {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV},
  {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV},
  {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP},
  {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP},
  {DBG_CONTROL_C, TARGET_SIGNAL_INT},
  {DBG_CONTROL_C, TARGET_SIGNAL_INT},
  {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP},
  {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP},
  {-1, -1}};
  {-1, -1}};
 
 
/* Find a thread record given a thread id.
/* Find a thread record given a thread id.
   If get_context then also retrieve the context for this
   If get_context then also retrieve the context for this
   thread. */
   thread. */
static thread_info *
static thread_info *
thread_rec (DWORD id, int get_context)
thread_rec (DWORD id, int get_context)
{
{
  thread_info *th;
  thread_info *th;
 
 
  for (th = &thread_head; (th = th->next) != NULL;)
  for (th = &thread_head; (th = th->next) != NULL;)
    if (th->id == id)
    if (th->id == id)
      {
      {
        if (!th->suspend_count && get_context)
        if (!th->suspend_count && get_context)
          {
          {
            if (get_context > 0 && id != current_event.dwThreadId)
            if (get_context > 0 && id != current_event.dwThreadId)
              th->suspend_count = SuspendThread (th->h) + 1;
              th->suspend_count = SuspendThread (th->h) + 1;
            else if (get_context < 0)
            else if (get_context < 0)
              th->suspend_count = -1;
              th->suspend_count = -1;
 
 
            th->context.ContextFlags = CONTEXT_DEBUGGER;
            th->context.ContextFlags = CONTEXT_DEBUGGER;
            GetThreadContext (th->h, &th->context);
            GetThreadContext (th->h, &th->context);
          }
          }
        return th;
        return th;
      }
      }
 
 
  return NULL;
  return NULL;
}
}
 
 
/* Add a thread to the thread list */
/* Add a thread to the thread list */
static thread_info *
static thread_info *
child_add_thread (DWORD id, HANDLE h)
child_add_thread (DWORD id, HANDLE h)
{
{
  thread_info *th;
  thread_info *th;
 
 
  if ((th = thread_rec (id, FALSE)))
  if ((th = thread_rec (id, FALSE)))
    return th;
    return th;
 
 
  th = (thread_info *) xmalloc (sizeof (*th));
  th = (thread_info *) xmalloc (sizeof (*th));
  memset (th, 0, sizeof (*th));
  memset (th, 0, sizeof (*th));
  th->id = id;
  th->id = id;
  th->h = h;
  th->h = h;
  th->next = thread_head.next;
  th->next = thread_head.next;
  thread_head.next = th;
  thread_head.next = th;
  add_thread (id);
  add_thread (id);
  return th;
  return th;
}
}
 
 
/* Clear out any old thread list and reintialize it to a
/* Clear out any old thread list and reintialize it to a
   pristine state. */
   pristine state. */
static void
static void
child_init_thread_list ()
child_init_thread_list ()
{
{
  thread_info *th = &thread_head;
  thread_info *th = &thread_head;
 
 
  DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
  DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
  init_thread_list ();
  init_thread_list ();
  while (th->next != NULL)
  while (th->next != NULL)
    {
    {
      thread_info *here = th->next;
      thread_info *here = th->next;
      th->next = here->next;
      th->next = here->next;
      (void) CloseHandle (here->h);
      (void) CloseHandle (here->h);
      free (here);
      free (here);
    }
    }
}
}
 
 
/* Delete a thread from the list of threads */
/* Delete a thread from the list of threads */
static void
static void
child_delete_thread (DWORD id)
child_delete_thread (DWORD id)
{
{
  thread_info *th;
  thread_info *th;
 
 
  if (info_verbose)
  if (info_verbose)
    printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id));
    printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id));
  delete_thread (id);
  delete_thread (id);
 
 
  for (th = &thread_head;
  for (th = &thread_head;
       th->next != NULL && th->next->id != id;
       th->next != NULL && th->next->id != id;
       th = th->next)
       th = th->next)
    continue;
    continue;
 
 
  if (th->next != NULL)
  if (th->next != NULL)
    {
    {
      thread_info *here = th->next;
      thread_info *here = th->next;
      th->next = here->next;
      th->next = here->next;
      CloseHandle (here->h);
      CloseHandle (here->h);
      free (here);
      free (here);
    }
    }
}
}
 
 
static void
static void
check (BOOL ok, const char *file, int line)
check (BOOL ok, const char *file, int line)
{
{
  if (!ok)
  if (!ok)
    printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
    printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
}
}
 
 
static void
static void
do_child_fetch_inferior_registers (int r)
do_child_fetch_inferior_registers (int r)
{
{
  char *context_offset = ((char *) &current_thread->context) + mappings[r];
  char *context_offset = ((char *) &current_thread->context) + mappings[r];
  long l;
  long l;
  if (r == FCS_REGNUM)
  if (r == FCS_REGNUM)
    {
    {
      l = *((long *)context_offset) & 0xffff;
      l = *((long *)context_offset) & 0xffff;
      supply_register (r, (char *) &l);
      supply_register (r, (char *) &l);
    }
    }
  else if (r == FOP_REGNUM)
  else if (r == FOP_REGNUM)
    {
    {
      l = (*((long *)context_offset) >> 16) & ((1 << 11) - 1);
      l = (*((long *)context_offset) >> 16) & ((1 << 11) - 1);
      supply_register (r, (char *) &l);
      supply_register (r, (char *) &l);
    }
    }
  else if (r >= 0)
  else if (r >= 0)
    supply_register (r, context_offset);
    supply_register (r, context_offset);
  else
  else
    {
    {
      for (r = 0; r < NUM_REGS; r++)
      for (r = 0; r < NUM_REGS; r++)
        do_child_fetch_inferior_registers (r);
        do_child_fetch_inferior_registers (r);
    }
    }
}
}
 
 
static void
static void
child_fetch_inferior_registers (int r)
child_fetch_inferior_registers (int r)
{
{
  current_thread = thread_rec (inferior_pid, TRUE);
  current_thread = thread_rec (inferior_pid, TRUE);
  do_child_fetch_inferior_registers (r);
  do_child_fetch_inferior_registers (r);
}
}
 
 
static void
static void
do_child_store_inferior_registers (int r)
do_child_store_inferior_registers (int r)
{
{
  if (r >= 0)
  if (r >= 0)
    read_register_gen (r, ((char *) &current_thread->context) + mappings[r]);
    read_register_gen (r, ((char *) &current_thread->context) + mappings[r]);
  else
  else
    {
    {
      for (r = 0; r < NUM_REGS; r++)
      for (r = 0; r < NUM_REGS; r++)
        do_child_store_inferior_registers (r);
        do_child_store_inferior_registers (r);
    }
    }
}
}
 
 
/* Store a new register value into the current thread context */
/* Store a new register value into the current thread context */
static void
static void
child_store_inferior_registers (int r)
child_store_inferior_registers (int r)
{
{
  current_thread = thread_rec (inferior_pid, TRUE);
  current_thread = thread_rec (inferior_pid, TRUE);
  do_child_store_inferior_registers (r);
  do_child_store_inferior_registers (r);
}
}
 
 
#include <psapi.h>
#include <psapi.h>
static int psapi_loaded = 0;
static int psapi_loaded = 0;
static HMODULE psapi_module_handle = NULL;
static HMODULE psapi_module_handle = NULL;
static BOOL  WINAPI (*psapi_EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD)= NULL;
static BOOL  WINAPI (*psapi_EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD)= NULL;
static BOOL  WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD)= NULL;
static BOOL  WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD)= NULL;
static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD)= NULL;
static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD)= NULL;
 
 
int psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
int psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
{
{
  DWORD len;
  DWORD len;
  MODULEINFO mi;
  MODULEINFO mi;
  int i;
  int i;
  HMODULE dh_buf [ 1 ];
  HMODULE dh_buf [ 1 ];
  HMODULE* DllHandle = dh_buf;
  HMODULE* DllHandle = dh_buf;
  DWORD cbNeeded;
  DWORD cbNeeded;
  BOOL ok;
  BOOL ok;
 
 
  if (!psapi_loaded ||
  if (!psapi_loaded ||
       psapi_EnumProcessModules   == NULL ||
       psapi_EnumProcessModules   == NULL ||
       psapi_GetModuleInformation == NULL ||
       psapi_GetModuleInformation == NULL ||
       psapi_GetModuleFileNameExA == NULL)
       psapi_GetModuleFileNameExA == NULL)
    {
    {
      if (psapi_loaded)goto failed;
      if (psapi_loaded)goto failed;
      psapi_loaded = 1;
      psapi_loaded = 1;
      psapi_module_handle = LoadLibrary ("psapi.dll");
      psapi_module_handle = LoadLibrary ("psapi.dll");
      if (!psapi_module_handle)
      if (!psapi_module_handle)
        {
        {
          /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ());*/
          /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ());*/
          goto failed;
          goto failed;
        }
        }
      psapi_EnumProcessModules   = GetProcAddress (psapi_module_handle, "EnumProcessModules" );
      psapi_EnumProcessModules   = GetProcAddress (psapi_module_handle, "EnumProcessModules" );
      psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
      psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
      psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
      psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
                                                            "GetModuleFileNameExA");
                                                            "GetModuleFileNameExA");
      if (psapi_EnumProcessModules   == NULL ||
      if (psapi_EnumProcessModules   == NULL ||
           psapi_GetModuleInformation == NULL ||
           psapi_GetModuleInformation == NULL ||
           psapi_GetModuleFileNameExA == NULL)
           psapi_GetModuleFileNameExA == NULL)
        goto failed;
        goto failed;
    }
    }
 
 
  cbNeeded = 0;
  cbNeeded = 0;
  ok = (*psapi_EnumProcessModules) (current_process_handle,
  ok = (*psapi_EnumProcessModules) (current_process_handle,
                                     DllHandle,
                                     DllHandle,
                                     sizeof (HMODULE),
                                     sizeof (HMODULE),
                                     &cbNeeded);
                                     &cbNeeded);
 
 
  if (!ok || !cbNeeded)
  if (!ok || !cbNeeded)
    goto failed;
    goto failed;
 
 
  DllHandle = (HMODULE*) alloca (cbNeeded);
  DllHandle = (HMODULE*) alloca (cbNeeded);
  if (!DllHandle)
  if (!DllHandle)
    goto failed;
    goto failed;
 
 
  ok = (*psapi_EnumProcessModules) (current_process_handle,
  ok = (*psapi_EnumProcessModules) (current_process_handle,
                                     DllHandle,
                                     DllHandle,
                                     cbNeeded,
                                     cbNeeded,
                                     &cbNeeded);
                                     &cbNeeded);
  if (!ok)
  if (!ok)
    goto failed;
    goto failed;
 
 
  for (i = 0; i < cbNeeded / sizeof (HMODULE); i++)
  for (i = 0; i < cbNeeded / sizeof (HMODULE); i++)
    {
    {
      if (!(*psapi_GetModuleInformation) (current_process_handle,
      if (!(*psapi_GetModuleInformation) (current_process_handle,
                                             DllHandle [i],
                                             DllHandle [i],
                                             &mi,
                                             &mi,
                                             sizeof (mi)))
                                             sizeof (mi)))
        error ("Can't get module info");
        error ("Can't get module info");
 
 
      len = (*psapi_GetModuleFileNameExA) (current_process_handle,
      len = (*psapi_GetModuleFileNameExA) (current_process_handle,
                                            DllHandle [i],
                                            DllHandle [i],
                                            dll_name_ret,
                                            dll_name_ret,
                                            MAX_PATH);
                                            MAX_PATH);
      if (len == 0)
      if (len == 0)
        error ("Error getting dll name: %u\n", GetLastError ());
        error ("Error getting dll name: %u\n", GetLastError ());
 
 
      if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
      if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
        return 1;
        return 1;
    }
    }
 
 
failed:
failed:
  dll_name_ret[0] = '\0';
  dll_name_ret[0] = '\0';
  return 0;
  return 0;
}
}
 
 
struct safe_symbol_file_add_args
struct safe_symbol_file_add_args
{
{
  char *name;
  char *name;
  int from_tty;
  int from_tty;
  struct section_addr_info *addrs;
  struct section_addr_info *addrs;
  int mainline;
  int mainline;
  int flags;
  int flags;
  struct objfile *ret;
  struct objfile *ret;
};
};
 
 
static int
static int
safe_symbol_file_add_stub (void *argv)
safe_symbol_file_add_stub (void *argv)
{
{
#define p ((struct safe_symbol_file_add_args *)argv)
#define p ((struct safe_symbol_file_add_args *)argv)
  p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
  p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
  return !!p->ret;
  return !!p->ret;
#undef p
#undef p
}
}
 
 
static void
static void
safe_symbol_file_add_cleanup (void *gdb_stderrv)
safe_symbol_file_add_cleanup (void *gdb_stderrv)
{
{
  ui_file_delete (gdb_stderr);
  ui_file_delete (gdb_stderr);
  gdb_stderr = (struct ui_file *)gdb_stderrv;
  gdb_stderr = (struct ui_file *)gdb_stderrv;
}
}
 
 
static struct objfile *
static struct objfile *
safe_symbol_file_add (char *name, int from_tty,
safe_symbol_file_add (char *name, int from_tty,
                      struct section_addr_info *addrs,
                      struct section_addr_info *addrs,
                      int mainline, int flags)
                      int mainline, int flags)
 
 
{
{
  struct safe_symbol_file_add_args p;
  struct safe_symbol_file_add_args p;
  struct cleanup *cleanup;
  struct cleanup *cleanup;
 
 
  cleanup = make_cleanup (safe_symbol_file_add_cleanup, gdb_stderr);
  cleanup = make_cleanup (safe_symbol_file_add_cleanup, gdb_stderr);
 
 
  gdb_stderr = ui_file_new ();
  gdb_stderr = ui_file_new ();
  p.name = name;
  p.name = name;
  p.from_tty = from_tty;
  p.from_tty = from_tty;
  p.addrs = addrs;
  p.addrs = addrs;
  p.mainline = mainline;
  p.mainline = mainline;
  p.flags = flags;
  p.flags = flags;
  catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR);
  catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR);
 
 
  do_cleanups (cleanup);
  do_cleanups (cleanup);
  return p.ret;
  return p.ret;
}
}
 
 
/* Wait for child to do something.  Return pid of child, or -1 in case
/* Wait for child to do something.  Return pid of child, or -1 in case
   of error; store status through argument pointer OURSTATUS.  */
   of error; store status through argument pointer OURSTATUS.  */
 
 
static int
static int
handle_load_dll (PTR dummy)
handle_load_dll (PTR dummy)
{
{
  LOAD_DLL_DEBUG_INFO *event = &current_event.u.LoadDll;
  LOAD_DLL_DEBUG_INFO *event = &current_event.u.LoadDll;
  DWORD dll_name_ptr;
  DWORD dll_name_ptr;
  DWORD done;
  DWORD done;
  char dll_buf[MAX_PATH + 1];
  char dll_buf[MAX_PATH + 1];
  char *p, *dll_name = NULL;
  char *p, *dll_name = NULL;
  struct objfile *objfile;
  struct objfile *objfile;
  MEMORY_BASIC_INFORMATION minfo;
  MEMORY_BASIC_INFORMATION minfo;
  struct section_addr_info section_addrs;
  struct section_addr_info section_addrs;
 
 
  memset (&section_addrs, 0, sizeof (section_addrs));
  memset (&section_addrs, 0, sizeof (section_addrs));
  dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
  dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
 
 
  if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
  if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
    dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0';
    dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0';
 
 
  dll_name = dll_buf;
  dll_name = dll_buf;
 
 
  /* Attempt to read the name of the dll that was detected.
  /* Attempt to read the name of the dll that was detected.
     This is documented to work only when actively debugging
     This is documented to work only when actively debugging
     a program.  It will not work for attached processes. */
     a program.  It will not work for attached processes. */
  if (dll_name == NULL || *dll_name == '\0')
  if (dll_name == NULL || *dll_name == '\0')
    {
    {
      int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
      int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
      int len = 0;
      int len = 0;
      char b[2];
      char b[2];
 
 
      ReadProcessMemory (current_process_handle,
      ReadProcessMemory (current_process_handle,
                         (LPCVOID) event->lpImageName,
                         (LPCVOID) event->lpImageName,
                         (char *) &dll_name_ptr,
                         (char *) &dll_name_ptr,
                         sizeof (dll_name_ptr), &done);
                         sizeof (dll_name_ptr), &done);
 
 
      /* See if we could read the address of a string, and that the
      /* See if we could read the address of a string, and that the
         address isn't null. */
         address isn't null. */
 
 
      if (done != sizeof (dll_name_ptr) || !dll_name_ptr)
      if (done != sizeof (dll_name_ptr) || !dll_name_ptr)
        return 1;
        return 1;
 
 
      do
      do
        {
        {
          ReadProcessMemory (current_process_handle,
          ReadProcessMemory (current_process_handle,
                             (LPCVOID) (dll_name_ptr + len * size),
                             (LPCVOID) (dll_name_ptr + len * size),
                             &b,
                             &b,
                             size,
                             size,
                             &done);
                             &done);
          len++;
          len++;
        }
        }
      while ((b[0] != 0 || b[size - 1] != 0) && done == size);
      while ((b[0] != 0 || b[size - 1] != 0) && done == size);
 
 
      dll_name = alloca (len);
      dll_name = alloca (len);
 
 
      if (event->fUnicode)
      if (event->fUnicode)
        {
        {
          WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR));
          WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR));
          ReadProcessMemory (current_process_handle,
          ReadProcessMemory (current_process_handle,
                             (LPCVOID) dll_name_ptr,
                             (LPCVOID) dll_name_ptr,
                             unicode_dll_name,
                             unicode_dll_name,
                             len * sizeof (WCHAR),
                             len * sizeof (WCHAR),
                             &done);
                             &done);
 
 
          WideCharToMultiByte (CP_ACP, 0,
          WideCharToMultiByte (CP_ACP, 0,
                               unicode_dll_name, len,
                               unicode_dll_name, len,
                               dll_name, len, 0, 0);
                               dll_name, len, 0, 0);
        }
        }
      else
      else
        {
        {
          ReadProcessMemory (current_process_handle,
          ReadProcessMemory (current_process_handle,
                             (LPCVOID) dll_name_ptr,
                             (LPCVOID) dll_name_ptr,
                             dll_name,
                             dll_name,
                             len,
                             len,
                             &done);
                             &done);
        }
        }
    }
    }
 
 
  if (!dll_name)
  if (!dll_name)
    return 1;
    return 1;
 
 
  while ((p = strchr (dll_name, '\\')))
  while ((p = strchr (dll_name, '\\')))
    *p = '/';
    *p = '/';
 
 
  /* The symbols in a dll are offset by 0x1000, which is the
  /* The symbols in a dll are offset by 0x1000, which is the
     the offset from 0 of the first byte in an image - because
     the offset from 0 of the first byte in an image - because
     of the file header and the section alignment. */
     of the file header and the section alignment. */
 
 
  section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000;
  section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000;
  safe_symbol_file_add (dll_name, 0, &section_addrs, 0, OBJF_SHARED);
  safe_symbol_file_add (dll_name, 0, &section_addrs, 0, OBJF_SHARED);
  printf_unfiltered ("%x:%s\n", event->lpBaseOfDll, dll_name);
  printf_unfiltered ("%x:%s\n", event->lpBaseOfDll, dll_name);
 
 
  return 1;
  return 1;
}
}
 
 
/* Handle DEBUG_STRING output from child process.
/* Handle DEBUG_STRING output from child process.
   Cygwin prepends its messages with a "cygwin:".  Interpret this as
   Cygwin prepends its messages with a "cygwin:".  Interpret this as
   a Cygwin signal.  Otherwise just print the string as a warning. */
   a Cygwin signal.  Otherwise just print the string as a warning. */
static int
static int
handle_output_debug_string (struct target_waitstatus *ourstatus)
handle_output_debug_string (struct target_waitstatus *ourstatus)
{
{
  char *s;
  char *s;
  int gotasig = FALSE;
  int gotasig = FALSE;
 
 
  if (!target_read_string
  if (!target_read_string
    ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0)
    ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0)
      || !s || !*s)
      || !s || !*s)
    return gotasig;
    return gotasig;
 
 
  if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
  if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
    {
    {
      if (strncmp (s, "cYg", 3) != 0)
      if (strncmp (s, "cYg", 3) != 0)
        warning (s);
        warning (s);
    }
    }
  else
  else
    {
    {
      char *p;
      char *p;
      int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
      int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
      gotasig = target_signal_from_host (sig);
      gotasig = target_signal_from_host (sig);
      ourstatus->value.sig = gotasig;
      ourstatus->value.sig = gotasig;
      if (gotasig)
      if (gotasig)
        ourstatus->kind = TARGET_WAITKIND_STOPPED;
        ourstatus->kind = TARGET_WAITKIND_STOPPED;
    }
    }
 
 
  free (s);
  free (s);
  return gotasig;
  return gotasig;
}
}
 
 
static int
static int
handle_exception (struct target_waitstatus *ourstatus)
handle_exception (struct target_waitstatus *ourstatus)
{
{
  int i;
  int i;
  int done = 0;
  int done = 0;
  thread_info *th;
  thread_info *th;
  int fc = ignore_first_first_chance;
  int fc = ignore_first_first_chance;
 
 
  ourstatus->kind = TARGET_WAITKIND_STOPPED;
  ourstatus->kind = TARGET_WAITKIND_STOPPED;
 
 
  ignore_first_first_chance = 0;
  ignore_first_first_chance = 0;
 
 
  /* Record the context of the current thread */
  /* Record the context of the current thread */
  th = thread_rec (current_event.dwThreadId, -1);
  th = thread_rec (current_event.dwThreadId, -1);
 
 
  last_sig = 0;
  last_sig = 0;
 
 
  switch (current_event.u.Exception.ExceptionRecord.ExceptionCode)
  switch (current_event.u.Exception.ExceptionRecord.ExceptionCode)
    {
    {
    case EXCEPTION_ACCESS_VIOLATION:
    case EXCEPTION_ACCESS_VIOLATION:
      DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      last_sig = SIGSEGV;
      last_sig = SIGSEGV;
      break;
      break;
    case STATUS_FLOAT_UNDERFLOW:
    case STATUS_FLOAT_UNDERFLOW:
    case STATUS_FLOAT_DIVIDE_BY_ZERO:
    case STATUS_FLOAT_DIVIDE_BY_ZERO:
    case STATUS_FLOAT_OVERFLOW:
    case STATUS_FLOAT_OVERFLOW:
    case STATUS_INTEGER_DIVIDE_BY_ZERO:
    case STATUS_INTEGER_DIVIDE_BY_ZERO:
      DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_STACK_OVERFLOW:
    case STATUS_STACK_OVERFLOW:
      DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      break;
      break;
    case EXCEPTION_BREAKPOINT:
    case EXCEPTION_BREAKPOINT:
      if (fc && current_event.u.Exception.dwFirstChance &&
      if (fc && current_event.u.Exception.dwFirstChance &&
          ((DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress & 0xc0000000))
          ((DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress & 0xc0000000))
        {
        {
          last_sig = -1;
          last_sig = -1;
          return 0;
          return 0;
        }
        }
      DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
      break;
    case DBG_CONTROL_C:
    case DBG_CONTROL_C:
      DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      last_sig = SIGINT;        /* FIXME - should check pass state */
      last_sig = SIGINT;        /* FIXME - should check pass state */
      break;
      break;
    case EXCEPTION_SINGLE_STEP:
    case EXCEPTION_SINGLE_STEP:
      DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
      break;
    case EXCEPTION_ILLEGAL_INSTRUCTION:
    case EXCEPTION_ILLEGAL_INSTRUCTION:
      DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08x\n",
      DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08x\n",
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
               current_event.u.Exception.ExceptionRecord.ExceptionAddress));
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      last_sig = SIGILL;
      last_sig = SIGILL;
      break;
      break;
    default:
    default:
      printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
      printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
                    current_event.u.Exception.ExceptionRecord.ExceptionCode,
                    current_event.u.Exception.ExceptionRecord.ExceptionCode,
                current_event.u.Exception.ExceptionRecord.ExceptionAddress);
                current_event.u.Exception.ExceptionRecord.ExceptionAddress);
      ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
      ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
      break;
      break;
    }
    }
  exception_count++;
  exception_count++;
  return 1;
  return 1;
}
}
 
 
/* Resume all artificially suspended threads if we are continuing
/* Resume all artificially suspended threads if we are continuing
   execution */
   execution */
static BOOL
static BOOL
child_continue (DWORD continue_status, int id)
child_continue (DWORD continue_status, int id)
{
{
  int i;
  int i;
  thread_info *th;
  thread_info *th;
  BOOL res;
  BOOL res;
 
 
  DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
  DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
                 current_event.dwProcessId, current_event.dwThreadId));
                 current_event.dwProcessId, current_event.dwThreadId));
  res = ContinueDebugEvent (current_event.dwProcessId,
  res = ContinueDebugEvent (current_event.dwProcessId,
                            current_event.dwThreadId,
                            current_event.dwThreadId,
                            continue_status);
                            continue_status);
  continue_status = 0;
  continue_status = 0;
  if (res)
  if (res)
    for (th = &thread_head; (th = th->next) != NULL;)
    for (th = &thread_head; (th = th->next) != NULL;)
      if (((id == -1) || (id == th->id)) && th->suspend_count)
      if (((id == -1) || (id == th->id)) && th->suspend_count)
        {
        {
          for (i = 0; i < th->suspend_count; i++)
          for (i = 0; i < th->suspend_count; i++)
            (void) ResumeThread (th->h);
            (void) ResumeThread (th->h);
          th->suspend_count = 0;
          th->suspend_count = 0;
        }
        }
 
 
  return res;
  return res;
}
}
 
 
/* Get the next event from the child.  Return 1 if the event requires
/* Get the next event from the child.  Return 1 if the event requires
   handling by WFI (or whatever).
   handling by WFI (or whatever).
 */
 */
static int
static int
get_child_debug_event (int pid, struct target_waitstatus *ourstatus,
get_child_debug_event (int pid, struct target_waitstatus *ourstatus,
                       DWORD target_event_code, int *retval)
                       DWORD target_event_code, int *retval)
{
{
  int breakout = 0;
  int breakout = 0;
  BOOL debug_event;
  BOOL debug_event;
  DWORD continue_status, event_code;
  DWORD continue_status, event_code;
  thread_info *th = NULL;
  thread_info *th = NULL;
  static thread_info dummy_thread_info;
  static thread_info dummy_thread_info;
 
 
  if (!(debug_event = WaitForDebugEvent (&current_event, 1000)))
  if (!(debug_event = WaitForDebugEvent (&current_event, 1000)))
    {
    {
      *retval = 0;
      *retval = 0;
      goto out;
      goto out;
    }
    }
 
 
  event_count++;
  event_count++;
  continue_status = DBG_CONTINUE;
  continue_status = DBG_CONTINUE;
  *retval = 0;
  *retval = 0;
 
 
  event_code = current_event.dwDebugEventCode;
  event_code = current_event.dwDebugEventCode;
  breakout = event_code == target_event_code;
  breakout = event_code == target_event_code;
 
 
  switch (event_code)
  switch (event_code)
    {
    {
    case CREATE_THREAD_DEBUG_EVENT:
    case CREATE_THREAD_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "CREATE_THREAD_DEBUG_EVENT"));
                     "CREATE_THREAD_DEBUG_EVENT"));
      /* Record the existence of this thread */
      /* Record the existence of this thread */
      th = child_add_thread (current_event.dwThreadId,
      th = child_add_thread (current_event.dwThreadId,
                             current_event.u.CreateThread.hThread);
                             current_event.u.CreateThread.hThread);
      if (info_verbose)
      if (info_verbose)
        printf_unfiltered ("[New %s]\n",
        printf_unfiltered ("[New %s]\n",
                           target_pid_to_str (current_event.dwThreadId));
                           target_pid_to_str (current_event.dwThreadId));
      break;
      break;
 
 
    case EXIT_THREAD_DEBUG_EVENT:
    case EXIT_THREAD_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "EXIT_THREAD_DEBUG_EVENT"));
                     "EXIT_THREAD_DEBUG_EVENT"));
      child_delete_thread (current_event.dwThreadId);
      child_delete_thread (current_event.dwThreadId);
      th = &dummy_thread_info;
      th = &dummy_thread_info;
      break;
      break;
 
 
    case CREATE_PROCESS_DEBUG_EVENT:
    case CREATE_PROCESS_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "CREATE_PROCESS_DEBUG_EVENT"));
                     "CREATE_PROCESS_DEBUG_EVENT"));
      current_process_handle = current_event.u.CreateProcessInfo.hProcess;
      current_process_handle = current_event.u.CreateProcessInfo.hProcess;
 
 
      main_thread_id = inferior_pid = current_event.dwThreadId;
      main_thread_id = inferior_pid = current_event.dwThreadId;
      /* Add the main thread */
      /* Add the main thread */
      th = child_add_thread (inferior_pid,
      th = child_add_thread (inferior_pid,
                             current_event.u.CreateProcessInfo.hThread);
                             current_event.u.CreateProcessInfo.hThread);
      break;
      break;
 
 
    case EXIT_PROCESS_DEBUG_EVENT:
    case EXIT_PROCESS_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "EXIT_PROCESS_DEBUG_EVENT"));
                     "EXIT_PROCESS_DEBUG_EVENT"));
      ourstatus->kind = TARGET_WAITKIND_EXITED;
      ourstatus->kind = TARGET_WAITKIND_EXITED;
      ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
      ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
      CloseHandle (current_process_handle);
      CloseHandle (current_process_handle);
      *retval = current_event.dwProcessId;
      *retval = current_event.dwProcessId;
      breakout = 1;
      breakout = 1;
      break;
      break;
 
 
    case LOAD_DLL_DEBUG_EVENT:
    case LOAD_DLL_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "LOAD_DLL_DEBUG_EVENT"));
                     "LOAD_DLL_DEBUG_EVENT"));
      catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL);
      catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL);
      registers_changed ();     /* mark all regs invalid */
      registers_changed ();     /* mark all regs invalid */
      break;
      break;
 
 
    case UNLOAD_DLL_DEBUG_EVENT:
    case UNLOAD_DLL_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "UNLOAD_DLL_DEBUG_EVENT"));
                     "UNLOAD_DLL_DEBUG_EVENT"));
      break;                    /* FIXME: don't know what to do here */
      break;                    /* FIXME: don't know what to do here */
 
 
    case EXCEPTION_DEBUG_EVENT:
    case EXCEPTION_DEBUG_EVENT:
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "EXCEPTION_DEBUG_EVENT"));
                     "EXCEPTION_DEBUG_EVENT"));
      if (handle_exception (ourstatus))
      if (handle_exception (ourstatus))
        *retval = current_event.dwThreadId;
        *retval = current_event.dwThreadId;
      else
      else
        {
        {
          if (last_sig >= 0)
          if (last_sig >= 0)
            continue_status = DBG_EXCEPTION_NOT_HANDLED;
            continue_status = DBG_EXCEPTION_NOT_HANDLED;
          breakout = 0;
          breakout = 0;
        }
        }
      break;
      break;
 
 
    case OUTPUT_DEBUG_STRING_EVENT:     /* message from the kernel */
    case OUTPUT_DEBUG_STRING_EVENT:     /* message from the kernel */
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
      DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwProcessId,
                     (unsigned) current_event.dwThreadId,
                     (unsigned) current_event.dwThreadId,
                     "OUTPUT_DEBUG_STRING_EVENT"));
                     "OUTPUT_DEBUG_STRING_EVENT"));
      handle_output_debug_string ( ourstatus);
      handle_output_debug_string ( ourstatus);
      break;
      break;
    default:
    default:
      printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
      printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
                         current_event.dwProcessId,
                         current_event.dwProcessId,
                         current_event.dwThreadId);
                         current_event.dwThreadId);
      printf_unfiltered ("                 unknown event code %d\n",
      printf_unfiltered ("                 unknown event code %d\n",
                         current_event.dwDebugEventCode);
                         current_event.dwDebugEventCode);
      break;
      break;
    }
    }
 
 
  if (breakout)
  if (breakout)
    current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE);
    current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE);
  else
  else
    CHECK (child_continue (continue_status, -1));
    CHECK (child_continue (continue_status, -1));
 
 
out:
out:
  return breakout;
  return breakout;
}
}
 
 
/* Wait for interesting events to occur in the target process. */
/* Wait for interesting events to occur in the target process. */
static int
static int
child_wait (int pid, struct target_waitstatus *ourstatus)
child_wait (int pid, struct target_waitstatus *ourstatus)
{
{
  DWORD event_code;
  DWORD event_code;
  int retval;
  int retval;
 
 
  /* We loop when we get a non-standard exception rather than return
  /* We loop when we get a non-standard exception rather than return
     with a SPURIOUS because resume can try and step or modify things,
     with a SPURIOUS because resume can try and step or modify things,
     which needs a current_thread->h.  But some of these exceptions mark
     which needs a current_thread->h.  But some of these exceptions mark
     the birth or death of threads, which mean that the current thread
     the birth or death of threads, which mean that the current thread
     isn't necessarily what you think it is. */
     isn't necessarily what you think it is. */
 
 
  while (1)
  while (1)
    if (get_child_debug_event (pid, ourstatus, EXCEPTION_DEBUG_EVENT, &retval))
    if (get_child_debug_event (pid, ourstatus, EXCEPTION_DEBUG_EVENT, &retval))
      return retval;
      return retval;
    else
    else
      {
      {
        int detach = 0;
        int detach = 0;
 
 
        if (ui_loop_hook != NULL)
        if (ui_loop_hook != NULL)
          detach = ui_loop_hook (0);
          detach = ui_loop_hook (0);
 
 
        if (detach)
        if (detach)
          child_kill_inferior ();
          child_kill_inferior ();
      }
      }
}
}
 
 
/* Attach to process PID, then initialize for debugging it.  */
/* Attach to process PID, then initialize for debugging it.  */
 
 
static void
static void
child_attach (args, from_tty)
child_attach (args, from_tty)
     char *args;
     char *args;
     int from_tty;
     int from_tty;
{
{
  BOOL ok;
  BOOL ok;
 
 
  if (!args)
  if (!args)
    error_no_arg ("process-id to attach");
    error_no_arg ("process-id to attach");
 
 
  current_event.dwProcessId = strtoul (args, 0, 0);
  current_event.dwProcessId = strtoul (args, 0, 0);
 
 
  ok = DebugActiveProcess (current_event.dwProcessId);
  ok = DebugActiveProcess (current_event.dwProcessId);
 
 
  if (!ok)
  if (!ok)
    error ("Can't attach to process.");
    error ("Can't attach to process.");
 
 
  exception_count = 0;
  exception_count = 0;
  event_count = 0;
  event_count = 0;
 
 
  if (from_tty)
  if (from_tty)
    {
    {
      char *exec_file = (char *) get_exec_file (0);
      char *exec_file = (char *) get_exec_file (0);
 
 
      if (exec_file)
      if (exec_file)
        printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
        printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
                           target_pid_to_str (current_event.dwProcessId));
                           target_pid_to_str (current_event.dwProcessId));
      else
      else
        printf_unfiltered ("Attaching to %s\n",
        printf_unfiltered ("Attaching to %s\n",
                           target_pid_to_str (current_event.dwProcessId));
                           target_pid_to_str (current_event.dwProcessId));
 
 
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
    }
    }
 
 
  push_target (&child_ops);
  push_target (&child_ops);
}
}
 
 
static void
static void
child_detach (args, from_tty)
child_detach (args, from_tty)
     char *args;
     char *args;
     int from_tty;
     int from_tty;
{
{
  if (from_tty)
  if (from_tty)
    {
    {
      char *exec_file = get_exec_file (0);
      char *exec_file = get_exec_file (0);
      if (exec_file == 0)
      if (exec_file == 0)
        exec_file = "";
        exec_file = "";
      printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
      printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
                         target_pid_to_str (inferior_pid));
                         target_pid_to_str (inferior_pid));
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
    }
    }
  inferior_pid = 0;
  inferior_pid = 0;
  unpush_target (&child_ops);
  unpush_target (&child_ops);
}
}
 
 
/* Print status information about what we're accessing.  */
/* Print status information about what we're accessing.  */
 
 
static void
static void
child_files_info (ignore)
child_files_info (ignore)
     struct target_ops *ignore;
     struct target_ops *ignore;
{
{
  printf_unfiltered ("\tUsing the running image of %s %s.\n",
  printf_unfiltered ("\tUsing the running image of %s %s.\n",
      attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
      attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
}
}
 
 
/* ARGSUSED */
/* ARGSUSED */
static void
static void
child_open (arg, from_tty)
child_open (arg, from_tty)
     char *arg;
     char *arg;
     int from_tty;
     int from_tty;
{
{
  error ("Use the \"run\" command to start a Unix child process.");
  error ("Use the \"run\" command to start a Unix child process.");
}
}
 
 
/* Start an inferior win32 child process and sets inferior_pid to its pid.
/* Start an inferior win32 child process and sets inferior_pid to its pid.
   EXEC_FILE is the file to run.
   EXEC_FILE is the file to run.
   ALLARGS is a string containing the arguments to the program.
   ALLARGS is a string containing the arguments to the program.
   ENV is the environment vector to pass.  Errors reported with error().  */
   ENV is the environment vector to pass.  Errors reported with error().  */
 
 
static void
static void
child_create_inferior (exec_file, allargs, env)
child_create_inferior (exec_file, allargs, env)
     char *exec_file;
     char *exec_file;
     char *allargs;
     char *allargs;
     char **env;
     char **env;
{
{
  char real_path[MAXPATHLEN];
  char real_path[MAXPATHLEN];
  char *winenv;
  char *winenv;
  char *temp;
  char *temp;
  int envlen;
  int envlen;
  int i;
  int i;
  STARTUPINFO si;
  STARTUPINFO si;
  PROCESS_INFORMATION pi;
  PROCESS_INFORMATION pi;
  struct target_waitstatus dummy;
  struct target_waitstatus dummy;
  BOOL ret;
  BOOL ret;
  DWORD flags;
  DWORD flags;
  char *args;
  char *args;
  DWORD event_code;
  DWORD event_code;
 
 
  if (!exec_file)
  if (!exec_file)
    {
    {
      error ("No executable specified, use `target exec'.\n");
      error ("No executable specified, use `target exec'.\n");
    }
    }
 
 
  memset (&si, 0, sizeof (si));
  memset (&si, 0, sizeof (si));
  si.cb = sizeof (si);
  si.cb = sizeof (si);
 
 
  cygwin32_conv_to_win32_path (exec_file, real_path);
  cygwin32_conv_to_win32_path (exec_file, real_path);
 
 
  flags = DEBUG_ONLY_THIS_PROCESS;
  flags = DEBUG_ONLY_THIS_PROCESS;
 
 
  if (new_group)
  if (new_group)
    flags |= CREATE_NEW_PROCESS_GROUP;
    flags |= CREATE_NEW_PROCESS_GROUP;
 
 
  if (new_console)
  if (new_console)
    flags |= CREATE_NEW_CONSOLE;
    flags |= CREATE_NEW_CONSOLE;
 
 
  args = alloca (strlen (real_path) + strlen (allargs) + 2);
  args = alloca (strlen (real_path) + strlen (allargs) + 2);
 
 
  strcpy (args, real_path);
  strcpy (args, real_path);
 
 
  strcat (args, " ");
  strcat (args, " ");
  strcat (args, allargs);
  strcat (args, allargs);
 
 
  /* Prepare the environment vars for CreateProcess.  */
  /* Prepare the environment vars for CreateProcess.  */
  {
  {
    /* This code use to assume all env vars were file names and would
    /* This code use to assume all env vars were file names and would
       translate them all to win32 style.  That obviously doesn't work in the
       translate them all to win32 style.  That obviously doesn't work in the
       general case.  The current rule is that we only translate PATH.
       general case.  The current rule is that we only translate PATH.
       We need to handle PATH because we're about to call CreateProcess and
       We need to handle PATH because we're about to call CreateProcess and
       it uses PATH to find DLL's.  Fortunately PATH has a well-defined value
       it uses PATH to find DLL's.  Fortunately PATH has a well-defined value
       in both posix and win32 environments.  cygwin.dll will change it back
       in both posix and win32 environments.  cygwin.dll will change it back
       to posix style if necessary.  */
       to posix style if necessary.  */
 
 
    static const char *conv_path_names[] =
    static const char *conv_path_names[] =
    {
    {
      "PATH=",
      "PATH=",
      0
      0
    };
    };
 
 
    /* CreateProcess takes the environment list as a null terminated set of
    /* CreateProcess takes the environment list as a null terminated set of
       strings (i.e. two nulls terminate the list).  */
       strings (i.e. two nulls terminate the list).  */
 
 
    /* Get total size for env strings.  */
    /* Get total size for env strings.  */
    for (envlen = 0, i = 0; env[i] && *env[i]; i++)
    for (envlen = 0, i = 0; env[i] && *env[i]; i++)
      {
      {
        int j, len;
        int j, len;
 
 
        for (j = 0; conv_path_names[j]; j++)
        for (j = 0; conv_path_names[j]; j++)
          {
          {
            len = strlen (conv_path_names[j]);
            len = strlen (conv_path_names[j]);
            if (strncmp (conv_path_names[j], env[i], len) == 0)
            if (strncmp (conv_path_names[j], env[i], len) == 0)
              {
              {
                if (cygwin32_posix_path_list_p (env[i] + len))
                if (cygwin32_posix_path_list_p (env[i] + len))
                  envlen += len
                  envlen += len
                    + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len);
                    + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len);
                else
                else
                  envlen += strlen (env[i]) + 1;
                  envlen += strlen (env[i]) + 1;
                break;
                break;
              }
              }
          }
          }
        if (conv_path_names[j] == NULL)
        if (conv_path_names[j] == NULL)
          envlen += strlen (env[i]) + 1;
          envlen += strlen (env[i]) + 1;
      }
      }
 
 
    winenv = alloca (envlen + 1);
    winenv = alloca (envlen + 1);
 
 
    /* Copy env strings into new buffer.  */
    /* Copy env strings into new buffer.  */
    for (temp = winenv, i = 0; env[i] && *env[i]; i++)
    for (temp = winenv, i = 0; env[i] && *env[i]; i++)
      {
      {
        int j, len;
        int j, len;
 
 
        for (j = 0; conv_path_names[j]; j++)
        for (j = 0; conv_path_names[j]; j++)
          {
          {
            len = strlen (conv_path_names[j]);
            len = strlen (conv_path_names[j]);
            if (strncmp (conv_path_names[j], env[i], len) == 0)
            if (strncmp (conv_path_names[j], env[i], len) == 0)
              {
              {
                if (cygwin32_posix_path_list_p (env[i] + len))
                if (cygwin32_posix_path_list_p (env[i] + len))
                  {
                  {
                    memcpy (temp, env[i], len);
                    memcpy (temp, env[i], len);
                    cygwin32_posix_to_win32_path_list (env[i] + len, temp + len);
                    cygwin32_posix_to_win32_path_list (env[i] + len, temp + len);
                  }
                  }
                else
                else
                  strcpy (temp, env[i]);
                  strcpy (temp, env[i]);
                break;
                break;
              }
              }
          }
          }
        if (conv_path_names[j] == NULL)
        if (conv_path_names[j] == NULL)
          strcpy (temp, env[i]);
          strcpy (temp, env[i]);
 
 
        temp += strlen (temp) + 1;
        temp += strlen (temp) + 1;
      }
      }
 
 
    /* Final nil string to terminate new env.  */
    /* Final nil string to terminate new env.  */
    *temp = 0;
    *temp = 0;
  }
  }
 
 
  ret = CreateProcess (0,
  ret = CreateProcess (0,
                       args,    /* command line */
                       args,    /* command line */
                       NULL,    /* Security */
                       NULL,    /* Security */
                       NULL,    /* thread */
                       NULL,    /* thread */
                       TRUE,    /* inherit handles */
                       TRUE,    /* inherit handles */
                       flags,   /* start flags */
                       flags,   /* start flags */
                       winenv,
                       winenv,
                       NULL,    /* current directory */
                       NULL,    /* current directory */
                       &si,
                       &si,
                       &pi);
                       &pi);
  if (!ret)
  if (!ret)
    error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
    error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
 
 
  exception_count = 0;
  exception_count = 0;
  event_count = 0;
  event_count = 0;
 
 
  current_process_handle = pi.hProcess;
  current_process_handle = pi.hProcess;
  current_event.dwProcessId = pi.dwProcessId;
  current_event.dwProcessId = pi.dwProcessId;
  memset (&current_event, 0, sizeof (current_event));
  memset (&current_event, 0, sizeof (current_event));
  inferior_pid = current_event.dwThreadId = pi.dwThreadId;
  inferior_pid = current_event.dwThreadId = pi.dwThreadId;
  push_target (&child_ops);
  push_target (&child_ops);
  child_init_thread_list ();
  child_init_thread_list ();
  init_wait_for_inferior ();
  init_wait_for_inferior ();
  clear_proceed_status ();
  clear_proceed_status ();
  target_terminal_init ();
  target_terminal_init ();
  target_terminal_inferior ();
  target_terminal_inferior ();
 
 
  ignore_first_first_chance = 1;
  ignore_first_first_chance = 1;
 
 
  /* Run until process and threads are loaded */
  /* Run until process and threads are loaded */
  while (!get_child_debug_event (inferior_pid, &dummy,
  while (!get_child_debug_event (inferior_pid, &dummy,
                                 CREATE_PROCESS_DEBUG_EVENT, &ret))
                                 CREATE_PROCESS_DEBUG_EVENT, &ret))
    continue;
    continue;
 
 
  /* child_continue (DBG_CONTINUE, -1);*/
  /* child_continue (DBG_CONTINUE, -1);*/
  proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
  proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
}
}
 
 
static void
static void
child_mourn_inferior ()
child_mourn_inferior ()
{
{
  (void) child_continue (DBG_CONTINUE, -1);
  (void) child_continue (DBG_CONTINUE, -1);
  unpush_target (&child_ops);
  unpush_target (&child_ops);
  generic_mourn_inferior ();
  generic_mourn_inferior ();
}
}
 
 
/* Send a SIGINT to the process group.  This acts just like the user typed a
/* Send a SIGINT to the process group.  This acts just like the user typed a
   ^C on the controlling terminal. */
   ^C on the controlling terminal. */
 
 
static void
static void
child_stop ()
child_stop ()
{
{
  DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
  DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
  CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
  CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
  registers_changed ();         /* refresh register state */
  registers_changed ();         /* refresh register state */
}
}
 
 
int
int
child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
                   int write, struct target_ops *target)
                   int write, struct target_ops *target)
{
{
  DWORD done;
  DWORD done;
  if (write)
  if (write)
    {
    {
      DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n",
      DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n",
                  len, memaddr));
                  len, memaddr));
      WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our,
      WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our,
                          len, &done);
                          len, &done);
      FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len);
      FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len);
    }
    }
  else
  else
    {
    {
      DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n",
      DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n",
                  len, memaddr));
                  len, memaddr));
      ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len,
      ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len,
                         &done);
                         &done);
    }
    }
  return done;
  return done;
}
}
 
 
void
void
child_kill_inferior (void)
child_kill_inferior (void)
{
{
  CHECK (TerminateProcess (current_process_handle, 0));
  CHECK (TerminateProcess (current_process_handle, 0));
 
 
  for (;;)
  for (;;)
    {
    {
      if (!child_continue (DBG_CONTINUE, -1))
      if (!child_continue (DBG_CONTINUE, -1))
        break;
        break;
      if (!WaitForDebugEvent (&current_event, INFINITE))
      if (!WaitForDebugEvent (&current_event, INFINITE))
        break;
        break;
      if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
      if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
        break;
        break;
    }
    }
 
 
  CHECK (CloseHandle (current_process_handle));
  CHECK (CloseHandle (current_process_handle));
 
 
  /* this may fail in an attached process so don't check. */
  /* this may fail in an attached process so don't check. */
  (void) CloseHandle (current_thread->h);
  (void) CloseHandle (current_thread->h);
  target_mourn_inferior ();     /* or just child_mourn_inferior? */
  target_mourn_inferior ();     /* or just child_mourn_inferior? */
}
}
 
 
void
void
child_resume (int pid, int step, enum target_signal sig)
child_resume (int pid, int step, enum target_signal sig)
{
{
  thread_info *th;
  thread_info *th;
  DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
  DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
                          DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
                          DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
 
 
  last_sig = 0;
  last_sig = 0;
 
 
  DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
  DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
               pid, step, sig));
               pid, step, sig));
 
 
  /* Get context for currently selected thread */
  /* Get context for currently selected thread */
  th = thread_rec (current_event.dwThreadId, FALSE);
  th = thread_rec (current_event.dwThreadId, FALSE);
  if (step)
  if (step)
    {
    {
#ifdef i386
#ifdef i386
      /* Single step by setting t bit */
      /* Single step by setting t bit */
      child_fetch_inferior_registers (PS_REGNUM);
      child_fetch_inferior_registers (PS_REGNUM);
      th->context.EFlags |= FLAG_TRACE_BIT;
      th->context.EFlags |= FLAG_TRACE_BIT;
#endif
#endif
    }
    }
 
 
  if (th->context.ContextFlags)
  if (th->context.ContextFlags)
    {
    {
      CHECK (SetThreadContext (th->h, &th->context));
      CHECK (SetThreadContext (th->h, &th->context));
      th->context.ContextFlags = 0;
      th->context.ContextFlags = 0;
    }
    }
 
 
  /* Allow continuing with the same signal that interrupted us.
  /* Allow continuing with the same signal that interrupted us.
     Otherwise complain. */
     Otherwise complain. */
 
 
  child_continue (continue_status, pid);
  child_continue (continue_status, pid);
}
}
 
 
static void
static void
child_prepare_to_store ()
child_prepare_to_store ()
{
{
  /* Do nothing, since we can store individual regs */
  /* Do nothing, since we can store individual regs */
}
}
 
 
static int
static int
child_can_run ()
child_can_run ()
{
{
  return 1;
  return 1;
}
}
 
 
static void
static void
child_close ()
child_close ()
{
{
  DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid));
  DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid));
}
}
 
 
struct target_ops child_ops;
struct target_ops child_ops;
 
 
static void
static void
init_child_ops (void)
init_child_ops (void)
{
{
  child_ops.to_shortname = "child";
  child_ops.to_shortname = "child";
  child_ops.to_longname = "Win32 child process";
  child_ops.to_longname = "Win32 child process";
  child_ops.to_doc = "Win32 child process (started by the \"run\" command).";
  child_ops.to_doc = "Win32 child process (started by the \"run\" command).";
  child_ops.to_open = child_open;
  child_ops.to_open = child_open;
  child_ops.to_close = child_close;
  child_ops.to_close = child_close;
  child_ops.to_attach = child_attach;
  child_ops.to_attach = child_attach;
  child_ops.to_detach = child_detach;
  child_ops.to_detach = child_detach;
  child_ops.to_resume = child_resume;
  child_ops.to_resume = child_resume;
  child_ops.to_wait = child_wait;
  child_ops.to_wait = child_wait;
  child_ops.to_fetch_registers = child_fetch_inferior_registers;
  child_ops.to_fetch_registers = child_fetch_inferior_registers;
  child_ops.to_store_registers = child_store_inferior_registers;
  child_ops.to_store_registers = child_store_inferior_registers;
  child_ops.to_prepare_to_store = child_prepare_to_store;
  child_ops.to_prepare_to_store = child_prepare_to_store;
  child_ops.to_xfer_memory = child_xfer_memory;
  child_ops.to_xfer_memory = child_xfer_memory;
  child_ops.to_files_info = child_files_info;
  child_ops.to_files_info = child_files_info;
  child_ops.to_insert_breakpoint = memory_insert_breakpoint;
  child_ops.to_insert_breakpoint = memory_insert_breakpoint;
  child_ops.to_remove_breakpoint = memory_remove_breakpoint;
  child_ops.to_remove_breakpoint = memory_remove_breakpoint;
  child_ops.to_terminal_init = terminal_init_inferior;
  child_ops.to_terminal_init = terminal_init_inferior;
  child_ops.to_terminal_inferior = terminal_inferior;
  child_ops.to_terminal_inferior = terminal_inferior;
  child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
  child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
  child_ops.to_terminal_ours = terminal_ours;
  child_ops.to_terminal_ours = terminal_ours;
  child_ops.to_terminal_info = child_terminal_info;
  child_ops.to_terminal_info = child_terminal_info;
  child_ops.to_kill = child_kill_inferior;
  child_ops.to_kill = child_kill_inferior;
  child_ops.to_load = 0;
  child_ops.to_load = 0;
  child_ops.to_lookup_symbol = 0;
  child_ops.to_lookup_symbol = 0;
  child_ops.to_create_inferior = child_create_inferior;
  child_ops.to_create_inferior = child_create_inferior;
  child_ops.to_mourn_inferior = child_mourn_inferior;
  child_ops.to_mourn_inferior = child_mourn_inferior;
  child_ops.to_can_run = child_can_run;
  child_ops.to_can_run = child_can_run;
  child_ops.to_notice_signals = 0;
  child_ops.to_notice_signals = 0;
  child_ops.to_thread_alive = win32_child_thread_alive;
  child_ops.to_thread_alive = win32_child_thread_alive;
  child_ops.to_pid_to_str = cygwin_pid_to_str;
  child_ops.to_pid_to_str = cygwin_pid_to_str;
  child_ops.to_stop = child_stop;
  child_ops.to_stop = child_stop;
  child_ops.to_stratum = process_stratum;
  child_ops.to_stratum = process_stratum;
  child_ops.DONT_USE = 0;
  child_ops.DONT_USE = 0;
  child_ops.to_has_all_memory = 1;
  child_ops.to_has_all_memory = 1;
  child_ops.to_has_memory = 1;
  child_ops.to_has_memory = 1;
  child_ops.to_has_stack = 1;
  child_ops.to_has_stack = 1;
  child_ops.to_has_registers = 1;
  child_ops.to_has_registers = 1;
  child_ops.to_has_execution = 1;
  child_ops.to_has_execution = 1;
  child_ops.to_sections = 0;
  child_ops.to_sections = 0;
  child_ops.to_sections_end = 0;
  child_ops.to_sections_end = 0;
  child_ops.to_magic = OPS_MAGIC;
  child_ops.to_magic = OPS_MAGIC;
}
}
 
 
void
void
_initialize_inftarg ()
_initialize_inftarg ()
{
{
  init_child_ops ();
  init_child_ops ();
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("new-console", class_support, var_boolean,
    (add_set_cmd ("new-console", class_support, var_boolean,
                  (char *) &new_console,
                  (char *) &new_console,
                  "Set creation of new console when creating child process.",
                  "Set creation of new console when creating child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("new-group", class_support, var_boolean,
    (add_set_cmd ("new-group", class_support, var_boolean,
                  (char *) &new_group,
                  (char *) &new_group,
                  "Set creation of new group when creating child process.",
                  "Set creation of new group when creating child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("debugexec", class_support, var_boolean,
    (add_set_cmd ("debugexec", class_support, var_boolean,
                  (char *) &debug_exec,
                  (char *) &debug_exec,
                  "Set whether to display execution in child process.",
                  "Set whether to display execution in child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("debugevents", class_support, var_boolean,
    (add_set_cmd ("debugevents", class_support, var_boolean,
                  (char *) &debug_events,
                  (char *) &debug_events,
                  "Set whether to display kernel events in child process.",
                  "Set whether to display kernel events in child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("debugmemory", class_support, var_boolean,
    (add_set_cmd ("debugmemory", class_support, var_boolean,
                  (char *) &debug_memory,
                  (char *) &debug_memory,
                  "Set whether to display memory accesses in child process.",
                  "Set whether to display memory accesses in child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_show_from_set
  add_show_from_set
    (add_set_cmd ("debugexceptions", class_support, var_boolean,
    (add_set_cmd ("debugexceptions", class_support, var_boolean,
                  (char *) &debug_exceptions,
                  (char *) &debug_exceptions,
               "Set whether to display kernel exceptions in child process.",
               "Set whether to display kernel exceptions in child process.",
                  &setlist),
                  &setlist),
     &showlist);
     &showlist);
 
 
  add_target (&child_ops);
  add_target (&child_ops);
}
}
 
 
/* Determine if the thread referenced by "pid" is alive
/* Determine if the thread referenced by "pid" is alive
   by "polling" it.  If WaitForSingleObject returns WAIT_OBJECT_0
   by "polling" it.  If WaitForSingleObject returns WAIT_OBJECT_0
   it means that the pid has died.  Otherwise it is assumed to be alive. */
   it means that the pid has died.  Otherwise it is assumed to be alive. */
static int
static int
win32_child_thread_alive (int pid)
win32_child_thread_alive (int pid)
{
{
  return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
  return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
    FALSE : TRUE;
    FALSE : TRUE;
}
}
 
 
/* Convert pid to printable format. */
/* Convert pid to printable format. */
char *
char *
cygwin_pid_to_str (int pid)
cygwin_pid_to_str (int pid)
{
{
  static char buf[80];
  static char buf[80];
  if (pid == current_event.dwProcessId)
  if (pid == current_event.dwProcessId)
    sprintf (buf, "process %d", pid);
    sprintf (buf, "process %d", pid);
  else
  else
    sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
    sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
  return buf;
  return buf;
}
}
 
 

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