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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, 2001, 2002 Free
   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free
   Software Foundation, Inc.
   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.  */
 
 
/* Originally by Steve Chamberlain, sac@cygnus.com */
/* Originally 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 "tm.h"                 /* required for SSE registers */
#include "tm.h"                 /* required for SSE registers */
#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 "completer.h"
#include "completer.h"
#include "regcache.h"
#include "regcache.h"
#include "top.h"
#include "top.h"
#include "i386-tdep.h"
#include "i386-tdep.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>
#include <windows.h>
#include <windows.h>
#include <imagehlp.h>
#include <imagehlp.h>
#include <sys/cygwin.h>
#include <sys/cygwin.h>
 
 
#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) (int signo);
extern int (*ui_loop_hook) (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
enum
enum
  {
  {
    FLAG_TRACE_BIT = 0x100,
    FLAG_TRACE_BIT = 0x100,
    CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
    CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
  };
  };
#endif
#endif
#include <sys/procfs.h>
#include <sys/procfs.h>
#include <psapi.h>
#include <psapi.h>
 
 
#ifdef HAVE_SSE_REGS
#ifdef HAVE_SSE_REGS
#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
        | CONTEXT_EXTENDED_REGISTERS
        | CONTEXT_EXTENDED_REGISTERS
#else
#else
#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS
#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS
#endif
#endif
 
 
static unsigned dr[8];
static unsigned dr[8];
static int debug_registers_changed = 0;
static int debug_registers_changed = 0;
static int debug_registers_used = 0;
static int debug_registers_used = 0;
 
 
/* 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_unfiltered x
#define DEBUG_EXEC(x)   if (debug_exec)         printf_unfiltered x
#define DEBUG_EVENTS(x) if (debug_events)       printf_unfiltered x
#define DEBUG_EVENTS(x) if (debug_events)       printf_unfiltered x
#define DEBUG_MEM(x)    if (debug_memory)       printf_unfiltered x
#define DEBUG_MEM(x)    if (debug_memory)       printf_unfiltered x
#define DEBUG_EXCEPT(x) if (debug_exceptions)   printf_unfiltered x
#define DEBUG_EXCEPT(x) if (debug_exceptions)   printf_unfiltered x
 
 
/* Forward declaration */
/* Forward declaration */
extern struct target_ops child_ops;
extern struct target_ops child_ops;
 
 
static void child_stop (void);
static void child_stop (void);
static int win32_child_thread_alive (ptid_t);
static int win32_child_thread_alive (ptid_t);
void child_kill_inferior (void);
void child_kill_inferior (void);
 
 
static enum target_signal last_sig = TARGET_SIGNAL_0;
static enum target_signal last_sig = TARGET_SIGNAL_0;
/* Set if a signal was received from the debugged process */
/* Set if a signal was received from the 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;
static thread_info thread_head;
 
 
/* 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 pid_t cygwin_pid;                /* pid of cygwin process */
static pid_t cygwin_pid;                /* pid of cygwin process */
 
 
/* 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;
static int saw_create;
static int saw_create;
 
 
/* 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 */
static int useshell = 0;         /* use shell for subprocesses */
static int useshell = 0;         /* use shell for subprocesses */
 
 
/* 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)
#ifdef HAVE_SSE_REGS
#ifdef HAVE_SSE_REGS
  /* XMM0-7 */ ,
  /* XMM0-7 */ ,
  context_offset (ExtendedRegisters[10*16]),
  context_offset (ExtendedRegisters[10*16]),
  context_offset (ExtendedRegisters[11*16]),
  context_offset (ExtendedRegisters[11*16]),
  context_offset (ExtendedRegisters[12*16]),
  context_offset (ExtendedRegisters[12*16]),
  context_offset (ExtendedRegisters[13*16]),
  context_offset (ExtendedRegisters[13*16]),
  context_offset (ExtendedRegisters[14*16]),
  context_offset (ExtendedRegisters[14*16]),
  context_offset (ExtendedRegisters[15*16]),
  context_offset (ExtendedRegisters[15*16]),
  context_offset (ExtendedRegisters[16*16]),
  context_offset (ExtendedRegisters[16*16]),
  context_offset (ExtendedRegisters[17*16]),
  context_offset (ExtendedRegisters[17*16]),
  /* MXCSR */
  /* MXCSR */
  context_offset (ExtendedRegisters[24])
  context_offset (ExtendedRegisters[24])
#endif
#endif
};
};
 
 
#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},
  {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE},
  {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE},
  {-1, -1}};
  {-1, -1}};
 
 
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 %lu\n", file, line,
    printf_filtered ("error return %s:%d was %lu\n", file, line,
                     GetLastError ());
                     GetLastError ());
}
}
 
 
 
 
/* 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_DR;
            th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
            GetThreadContext (th->h, &th->context);
            GetThreadContext (th->h, &th->context);
            if (id == current_event.dwThreadId)
            if (id == current_event.dwThreadId)
              {
              {
                /* Copy dr values from that thread.  */
                /* Copy dr values from that thread.  */
                dr[0] = th->context.Dr0;
                dr[0] = th->context.Dr0;
                dr[1] = th->context.Dr1;
                dr[1] = th->context.Dr1;
                dr[2] = th->context.Dr2;
                dr[2] = th->context.Dr2;
                dr[3] = th->context.Dr3;
                dr[3] = th->context.Dr3;
                dr[6] = th->context.Dr6;
                dr[6] = th->context.Dr6;
                dr[7] = th->context.Dr7;
                dr[7] = th->context.Dr7;
              }
              }
          }
          }
        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 (pid_to_ptid (id));
  add_thread (pid_to_ptid (id));
  /* Set the debug registers for the new thread in they are used.  */
  /* Set the debug registers for the new thread in they are used.  */
  if (debug_registers_used)
  if (debug_registers_used)
    {
    {
      /* Only change the value of the debug registers.  */
      /* Only change the value of the debug registers.  */
      th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
      th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
      CHECK (GetThreadContext (th->h, &th->context));
      CHECK (GetThreadContext (th->h, &th->context));
      th->context.Dr0 = dr[0];
      th->context.Dr0 = dr[0];
      th->context.Dr1 = dr[1];
      th->context.Dr1 = dr[1];
      th->context.Dr2 = dr[2];
      th->context.Dr2 = dr[2];
      th->context.Dr3 = dr[3];
      th->context.Dr3 = dr[3];
      /* th->context.Dr6 = dr[6];
      /* th->context.Dr6 = dr[6];
      FIXME: should we set dr6 also ?? */
      FIXME: should we set dr6 also ?? */
      th->context.Dr7 = dr[7];
      th->context.Dr7 = dr[7];
      CHECK (SetThreadContext (th->h, &th->context));
      CHECK (SetThreadContext (th->h, &th->context));
      th->context.ContextFlags = 0;
      th->context.ContextFlags = 0;
    }
    }
  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 (void)
child_init_thread_list (void)
{
{
  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);
      xfree (here);
      xfree (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 (pid_to_ptid (id)));
    printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id)));
  delete_thread (pid_to_ptid (id));
  delete_thread (pid_to_ptid (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);
      xfree (here);
      xfree (here);
    }
    }
}
}
 
 
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 (PIDGET (inferior_ptid), TRUE);
  current_thread = thread_rec (PIDGET (inferior_ptid), 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 (PIDGET (inferior_ptid), TRUE);
  current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
  do_child_store_inferior_registers (r);
  do_child_store_inferior_registers (r);
}
}
 
 
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
int
psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
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)
      if (psapi_loaded)
        goto failed;
        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 < (int) (cbNeeded / sizeof (HMODULE)); i++)
  for (i = 0; i < (int) (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", (unsigned) GetLastError ());
        error ("Error getting dll name: %u\n", (unsigned) 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;
}
}
 
 
/* Encapsulate the information required in a call to
/* Encapsulate the information required in a call to
   symbol_file_add_args */
   symbol_file_add_args */
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 ui_file *err, *out;
  struct ui_file *err, *out;
  struct objfile *ret;
  struct objfile *ret;
};
};
 
 
/* Maintain a linked list of "so" information. */
/* Maintain a linked list of "so" information. */
struct so_stuff
struct so_stuff
{
{
  struct so_stuff *next;
  struct so_stuff *next;
  DWORD load_addr;
  DWORD load_addr;
  DWORD end_addr;
  DWORD end_addr;
  int loaded;
  int loaded;
  struct objfile *objfile;
  struct objfile *objfile;
  char name[1];
  char name[1];
} solib_start, *solib_end;
} solib_start, *solib_end;
 
 
/* Call symbol_file_add with stderr redirected.  We don't care if there
/* Call symbol_file_add with stderr redirected.  We don't care if there
   are errors. */
   are errors. */
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)
  struct so_stuff *so = &solib_start;
  struct so_stuff *so = &solib_start;
 
 
  while ((so = so->next))
  while ((so = so->next))
    if (so->loaded && strcasecmp (so->name, p->name) == 0)
    if (so->loaded && strcasecmp (so->name, p->name) == 0)
      return 0;
      return 0;
  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
}
}
 
 
/* Restore gdb's stderr after calling symbol_file_add */
/* Restore gdb's stderr after calling symbol_file_add */
static void
static void
safe_symbol_file_add_cleanup (void *p)
safe_symbol_file_add_cleanup (void *p)
{
{
#define sp ((struct safe_symbol_file_add_args *)p)
#define sp ((struct safe_symbol_file_add_args *)p)
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stdout);
  gdb_flush (gdb_stdout);
  ui_file_delete (gdb_stderr);
  ui_file_delete (gdb_stderr);
  ui_file_delete (gdb_stdout);
  ui_file_delete (gdb_stdout);
  gdb_stderr = sp->err;
  gdb_stderr = sp->err;
  gdb_stdout = sp->out;
  gdb_stdout = sp->out;
#undef sp
#undef sp
}
}
 
 
/* symbol_file_add wrapper that prevents errors from being displayed. */
/* symbol_file_add wrapper that prevents errors from being displayed. */
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, &p);
  cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p);
 
 
  p.err = gdb_stderr;
  p.err = gdb_stderr;
  p.out = gdb_stdout;
  p.out = gdb_stdout;
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stdout);
  gdb_flush (gdb_stdout);
  gdb_stderr = ui_file_new ();
  gdb_stderr = ui_file_new ();
  gdb_stdout = ui_file_new ();
  gdb_stdout = 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;
}
}
 
 
/* Remember the maximum DLL length for printing in info dll command. */
/* Remember the maximum DLL length for printing in info dll command. */
int max_dll_name_len;
int max_dll_name_len;
 
 
static void
static void
register_loaded_dll (const char *name, DWORD load_addr)
register_loaded_dll (const char *name, DWORD load_addr)
{
{
  struct so_stuff *so;
  struct so_stuff *so;
  char ppath[MAX_PATH + 1];
  char ppath[MAX_PATH + 1];
  char buf[MAX_PATH + 1];
  char buf[MAX_PATH + 1];
  char cwd[MAX_PATH + 1];
  char cwd[MAX_PATH + 1];
  char *p;
  char *p;
  WIN32_FIND_DATA w32_fd;
  WIN32_FIND_DATA w32_fd;
  HANDLE h = FindFirstFile(name, &w32_fd);
  HANDLE h = FindFirstFile(name, &w32_fd);
  MEMORY_BASIC_INFORMATION m;
  MEMORY_BASIC_INFORMATION m;
  size_t len;
  size_t len;
 
 
  if (h == INVALID_HANDLE_VALUE)
  if (h == INVALID_HANDLE_VALUE)
    strcpy (buf, name);
    strcpy (buf, name);
  else
  else
    {
    {
      FindClose (h);
      FindClose (h);
      strcpy (buf, name);
      strcpy (buf, name);
      if (GetCurrentDirectory (MAX_PATH + 1, cwd))
      if (GetCurrentDirectory (MAX_PATH + 1, cwd))
        {
        {
          p = strrchr (buf, '\\');
          p = strrchr (buf, '\\');
          if (p)
          if (p)
            p[1] = '\0';
            p[1] = '\0';
          SetCurrentDirectory (buf);
          SetCurrentDirectory (buf);
          GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p);
          GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p);
          SetCurrentDirectory (cwd);
          SetCurrentDirectory (cwd);
        }
        }
    }
    }
 
 
  cygwin_conv_to_posix_path (buf, ppath);
  cygwin_conv_to_posix_path (buf, ppath);
  so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (ppath) + 8 + 1);
  so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (ppath) + 8 + 1);
  so->loaded = 0;
  so->loaded = 0;
  so->load_addr = load_addr;
  so->load_addr = load_addr;
  if (!VirtualQueryEx (current_process_handle, (void *) load_addr, &m,
  if (!VirtualQueryEx (current_process_handle, (void *) load_addr, &m,
                       sizeof (m)))
                       sizeof (m)))
    so->end_addr = (DWORD) m.AllocationBase + m.RegionSize;
    so->end_addr = (DWORD) m.AllocationBase + m.RegionSize;
  else
  else
    so->end_addr = load_addr + 0x2000;  /* completely arbitrary */
    so->end_addr = load_addr + 0x2000;  /* completely arbitrary */
 
 
  so->next = NULL;
  so->next = NULL;
  so->objfile = NULL;
  so->objfile = NULL;
  strcpy (so->name, ppath);
  strcpy (so->name, ppath);
 
 
  solib_end->next = so;
  solib_end->next = so;
  solib_end = so;
  solib_end = so;
  len = strlen (ppath);
  len = strlen (ppath);
  if (len > max_dll_name_len)
  if (len > max_dll_name_len)
    max_dll_name_len = len;
    max_dll_name_len = len;
}
}
 
 
char *
char *
get_image_name (HANDLE h, void *address, int unicode)
get_image_name (HANDLE h, void *address, int unicode)
{
{
  static char buf[(2 * MAX_PATH) + 1];
  static char buf[(2 * MAX_PATH) + 1];
  DWORD size = unicode ? sizeof (WCHAR) : sizeof (char);
  DWORD size = unicode ? sizeof (WCHAR) : sizeof (char);
  char *address_ptr;
  char *address_ptr;
  int len = 0;
  int len = 0;
  char b[2];
  char b[2];
  DWORD done;
  DWORD done;
 
 
  /* 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 (address == NULL)
  if (address == NULL)
    return NULL;
    return NULL;
 
 
  ReadProcessMemory (h, address,  &address_ptr, sizeof (address_ptr), &done);
  ReadProcessMemory (h, address,  &address_ptr, sizeof (address_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 (address_ptr) || !address_ptr)
  if (done != sizeof (address_ptr) || !address_ptr)
    return NULL;
    return NULL;
 
 
  /* Find the length of the string */
  /* Find the length of the string */
  do
  do
    {
    {
      ReadProcessMemory (h, address_ptr + len * size, &b, size, &done);
      ReadProcessMemory (h, address_ptr + len * size, &b, size, &done);
      len++;
      len++;
    }
    }
  while ((b[0] != 0 || b[size - 1] != 0) && done == size);
  while ((b[0] != 0 || b[size - 1] != 0) && done == size);
 
 
  if (!unicode)
  if (!unicode)
    ReadProcessMemory (h, address_ptr, buf, len, &done);
    ReadProcessMemory (h, address_ptr, buf, len, &done);
  else
  else
    {
    {
      WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR));
      WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR));
      ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR),
      ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR),
                         &done);
                         &done);
 
 
      WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0);
      WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0);
    }
    }
 
 
  return buf;
  return buf;
}
}
 
 
/* 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 (void *dummy)
handle_load_dll (void *dummy)
{
{
  LOAD_DLL_DEBUG_INFO *event = &current_event.u.LoadDll;
  LOAD_DLL_DEBUG_INFO *event = &current_event.u.LoadDll;
  char dll_buf[MAX_PATH + 1];
  char dll_buf[MAX_PATH + 1];
  char *dll_name = NULL;
  char *dll_name = NULL;
  char *p;
  char *p;
 
 
  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;
 
 
  if (*dll_name == '\0')
  if (*dll_name == '\0')
    dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode);
    dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode);
  if (!dll_name)
  if (!dll_name)
    return 1;
    return 1;
 
 
  register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000);
  register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000);
 
 
  return 1;
  return 1;
}
}
 
 
static int
static int
handle_unload_dll (void *dummy)
handle_unload_dll (void *dummy)
{
{
  DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000;
  DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000;
  struct so_stuff *so;
  struct so_stuff *so;
 
 
  for (so = &solib_start; so->next != NULL; so = so->next)
  for (so = &solib_start; so->next != NULL; so = so->next)
    if (so->next->load_addr == lpBaseOfDll)
    if (so->next->load_addr == lpBaseOfDll)
      {
      {
        struct so_stuff *sodel = so->next;
        struct so_stuff *sodel = so->next;
        so->next = sodel->next;
        so->next = sodel->next;
        if (!so->next)
        if (!so->next)
          solib_end = so;
          solib_end = so;
        if (sodel->objfile)
        if (sodel->objfile)
          free_objfile (sodel->objfile);
          free_objfile (sodel->objfile);
        xfree(sodel);
        xfree(sodel);
        return 1;
        return 1;
      }
      }
  error ("Error: dll starting at 0x%lx not found.\n", (DWORD) lpBaseOfDll);
  error ("Error: dll starting at 0x%lx not found.\n", (DWORD) lpBaseOfDll);
 
 
  return 0;
  return 0;
}
}
 
 
char *
char *
solib_address (CORE_ADDR address)
solib_address (CORE_ADDR address)
{
{
  struct so_stuff *so;
  struct so_stuff *so;
  for (so = &solib_start; so->next != NULL; so = so->next)
  for (so = &solib_start; so->next != NULL; so = so->next)
    if (address >= so->load_addr && address <= so->end_addr)
    if (address >= so->load_addr && address <= so->end_addr)
      return so->name;
      return so->name;
  return NULL;
  return NULL;
}
}
 
 
/* Return name of last loaded DLL. */
/* Return name of last loaded DLL. */
char *
char *
child_solib_loaded_library_pathname (int pid)
child_solib_loaded_library_pathname (int pid)
{
{
  return !solib_end || !solib_end->name[0] ? NULL : solib_end->name;
  return !solib_end || !solib_end->name[0] ? NULL : solib_end->name;
}
}
 
 
/* Clear list of loaded DLLs. */
/* Clear list of loaded DLLs. */
void
void
child_clear_solibs (void)
child_clear_solibs (void)
{
{
  struct so_stuff *so, *so1 = solib_start.next;
  struct so_stuff *so, *so1 = solib_start.next;
 
 
  while ((so = so1) != NULL)
  while ((so = so1) != NULL)
    {
    {
      so1 = so->next;
      so1 = so->next;
      xfree (so);
      xfree (so);
    }
    }
 
 
  solib_start.next = NULL;
  solib_start.next = NULL;
  solib_start.objfile = NULL;
  solib_start.objfile = NULL;
  solib_end = &solib_start;
  solib_end = &solib_start;
  max_dll_name_len = sizeof ("DLL Name") - 1;
  max_dll_name_len = sizeof ("DLL Name") - 1;
}
}
 
 
/* Add DLL symbol information. */
/* Add DLL symbol information. */
static struct objfile *
static struct objfile *
solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr)
solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr)
{
{
  struct section_addr_info section_addrs;
  struct section_addr_info section_addrs;
 
 
  /* 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. */
 
 
  if (!name || !name[0])
  if (!name || !name[0])
    return NULL;
    return NULL;
 
 
  memset (&section_addrs, 0, sizeof (section_addrs));
  memset (&section_addrs, 0, sizeof (section_addrs));
  section_addrs.other[0].name = ".text";
  section_addrs.other[0].name = ".text";
  section_addrs.other[0].addr = load_addr;
  section_addrs.other[0].addr = load_addr;
  return safe_symbol_file_add (name, from_tty, &section_addrs, 0, OBJF_SHARED);
  return safe_symbol_file_add (name, from_tty, &section_addrs, 0, OBJF_SHARED);
}
}
 
 
/* Load DLL symbol info. */
/* Load DLL symbol info. */
void
void
dll_symbol_command (char *args, int from_tty)
dll_symbol_command (char *args, int from_tty)
{
{
  int n;
  int n;
  dont_repeat ();
  dont_repeat ();
 
 
  if (args == NULL)
  if (args == NULL)
    error ("dll-symbols requires a file name");
    error ("dll-symbols requires a file name");
 
 
  n = strlen (args);
  n = strlen (args);
  if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0)
  if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0)
    {
    {
      char *newargs = (char *) alloca (n + 4 + 1);
      char *newargs = (char *) alloca (n + 4 + 1);
      strcpy (newargs, args);
      strcpy (newargs, args);
      strcat (newargs, ".dll");
      strcat (newargs, ".dll");
      args = newargs;
      args = newargs;
    }
    }
 
 
  safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED);
  safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED);
}
}
 
 
/* List currently loaded DLLs. */
/* List currently loaded DLLs. */
void
void
info_dll_command (char *ignore, int from_tty)
info_dll_command (char *ignore, int from_tty)
{
{
  struct so_stuff *so = &solib_start;
  struct so_stuff *so = &solib_start;
 
 
  if (!so->next)
  if (!so->next)
    return;
    return;
 
 
  printf_filtered ("%*s  Load Address\n", -max_dll_name_len, "DLL Name");
  printf_filtered ("%*s  Load Address\n", -max_dll_name_len, "DLL Name");
  while ((so = so->next) != NULL)
  while ((so = so->next) != NULL)
    printf_filtered ("%*s  %08lx\n", -max_dll_name_len, so->name, so->load_addr);
    printf_filtered ("%*s  %08lx\n", -max_dll_name_len, so->name, so->load_addr);
 
 
  return;
  return;
}
}
 
 
/* 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", s);
        warning ("%s", 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;
    }
    }
 
 
  xfree (s);
  xfree (s);
  return gotasig;
  return gotasig;
}
}
 
 
static int
static int
display_selector (HANDLE thread, DWORD sel)
display_selector (HANDLE thread, DWORD sel)
{
{
  LDT_ENTRY info;
  LDT_ENTRY info;
  if (GetThreadSelectorEntry (thread, sel, &info))
  if (GetThreadSelectorEntry (thread, sel, &info))
    {
    {
      int base, limit;
      int base, limit;
      printf_filtered ("0x%03lx: ", sel);
      printf_filtered ("0x%03lx: ", sel);
      if (!info.HighWord.Bits.Pres)
      if (!info.HighWord.Bits.Pres)
        {
        {
          puts_filtered ("Segment not present\n");
          puts_filtered ("Segment not present\n");
          return 0;
          return 0;
        }
        }
      base = (info.HighWord.Bits.BaseHi << 24) +
      base = (info.HighWord.Bits.BaseHi << 24) +
             (info.HighWord.Bits.BaseMid << 16)
             (info.HighWord.Bits.BaseMid << 16)
             + info.BaseLow;
             + info.BaseLow;
      limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
      limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
      if (info.HighWord.Bits.Granularity)
      if (info.HighWord.Bits.Granularity)
       limit = (limit << 12) | 0xfff;
       limit = (limit << 12) | 0xfff;
      printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
      printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
      if (info.HighWord.Bits.Default_Big)
      if (info.HighWord.Bits.Default_Big)
        puts_filtered(" 32-bit ");
        puts_filtered(" 32-bit ");
      else
      else
        puts_filtered(" 16-bit ");
        puts_filtered(" 16-bit ");
      switch ((info.HighWord.Bits.Type & 0xf) >> 1)
      switch ((info.HighWord.Bits.Type & 0xf) >> 1)
        {
        {
        case 0:
        case 0:
          puts_filtered ("Data (Read-Only, Exp-up");
          puts_filtered ("Data (Read-Only, Exp-up");
          break;
          break;
        case 1:
        case 1:
          puts_filtered ("Data (Read/Write, Exp-up");
          puts_filtered ("Data (Read/Write, Exp-up");
          break;
          break;
        case 2:
        case 2:
          puts_filtered ("Unused segment (");
          puts_filtered ("Unused segment (");
          break;
          break;
        case 3:
        case 3:
          puts_filtered ("Data (Read/Write, Exp-down");
          puts_filtered ("Data (Read/Write, Exp-down");
          break;
          break;
        case 4:
        case 4:
          puts_filtered ("Code (Exec-Only, N.Conf");
          puts_filtered ("Code (Exec-Only, N.Conf");
          break;
          break;
        case 5:
        case 5:
          puts_filtered ("Code (Exec/Read, N.Conf");
          puts_filtered ("Code (Exec/Read, N.Conf");
          break;
          break;
        case 6:
        case 6:
          puts_filtered ("Code (Exec-Only, Conf");
          puts_filtered ("Code (Exec-Only, Conf");
          break;
          break;
        case 7:
        case 7:
          puts_filtered ("Code (Exec/Read, Conf");
          puts_filtered ("Code (Exec/Read, Conf");
          break;
          break;
        default:
        default:
          printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type);
          printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type);
        }
        }
      if ((info.HighWord.Bits.Type & 0x1) == 0)
      if ((info.HighWord.Bits.Type & 0x1) == 0)
        puts_filtered(", N.Acc");
        puts_filtered(", N.Acc");
      puts_filtered (")\n");
      puts_filtered (")\n");
      if ((info.HighWord.Bits.Type & 0x10) == 0)
      if ((info.HighWord.Bits.Type & 0x10) == 0)
        puts_filtered("System selector ");
        puts_filtered("System selector ");
      printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl);
      printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl);
      if (info.HighWord.Bits.Granularity)
      if (info.HighWord.Bits.Granularity)
        puts_filtered ("Page granular.\n");
        puts_filtered ("Page granular.\n");
      else
      else
        puts_filtered ("Byte granular.\n");
        puts_filtered ("Byte granular.\n");
      return 1;
      return 1;
    }
    }
  else
  else
    {
    {
      printf_filtered ("Invalid selector 0x%lx.\n",sel);
      printf_filtered ("Invalid selector 0x%lx.\n",sel);
      return 0;
      return 0;
    }
    }
}
}
 
 
static void
static void
display_selectors (char * args, int from_tty)
display_selectors (char * args, int from_tty)
{
{
  if (!current_thread)
  if (!current_thread)
    {
    {
      puts_filtered ("Impossible to display selectors now.\n");
      puts_filtered ("Impossible to display selectors now.\n");
      return;
      return;
    }
    }
  if (!args)
  if (!args)
    {
    {
 
 
      puts_filtered ("Selector $cs\n");
      puts_filtered ("Selector $cs\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegCs);
        current_thread->context.SegCs);
      puts_filtered ("Selector $ds\n");
      puts_filtered ("Selector $ds\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegDs);
        current_thread->context.SegDs);
      puts_filtered ("Selector $es\n");
      puts_filtered ("Selector $es\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegEs);
        current_thread->context.SegEs);
      puts_filtered ("Selector $ss\n");
      puts_filtered ("Selector $ss\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegSs);
        current_thread->context.SegSs);
      puts_filtered ("Selector $fs\n");
      puts_filtered ("Selector $fs\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegFs);
        current_thread->context.SegFs);
      puts_filtered ("Selector $gs\n");
      puts_filtered ("Selector $gs\n");
      display_selector (current_thread->h,
      display_selector (current_thread->h,
        current_thread->context.SegGs);
        current_thread->context.SegGs);
    }
    }
  else
  else
    {
    {
      int sel;
      int sel;
      sel = parse_and_eval_long (args);
      sel = parse_and_eval_long (args);
      printf_filtered ("Selector \"%s\"\n",args);
      printf_filtered ("Selector \"%s\"\n",args);
      display_selector (current_thread->h, sel);
      display_selector (current_thread->h, sel);
    }
    }
}
}
 
 
static struct cmd_list_element *info_w32_cmdlist = NULL;
static struct cmd_list_element *info_w32_cmdlist = NULL;
 
 
static void
static void
info_w32_command (char *args, int from_tty)
info_w32_command (char *args, int from_tty)
{
{
  help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
  help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
}
}
 
 
 
 
#define DEBUG_EXCEPTION_SIMPLE(x)       if (debug_exceptions) \
#define DEBUG_EXCEPTION_SIMPLE(x)       if (debug_exceptions) \
  printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
  printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
  (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)
  (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)
 
 
static int
static int
handle_exception (struct target_waitstatus *ourstatus)
handle_exception (struct target_waitstatus *ourstatus)
{
{
  thread_info *th;
  thread_info *th;
  DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;
  DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;
 
 
  ourstatus->kind = TARGET_WAITKIND_STOPPED;
  ourstatus->kind = TARGET_WAITKIND_STOPPED;
 
 
  /* 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);
 
 
  switch (code)
  switch (code)
    {
    {
    case EXCEPTION_ACCESS_VIOLATION:
    case EXCEPTION_ACCESS_VIOLATION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION");
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      break;
      break;
    case STATUS_STACK_OVERFLOW:
    case STATUS_STACK_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      break;
      break;
    case STATUS_FLOAT_DENORMAL_OPERAND:
    case STATUS_FLOAT_DENORMAL_OPERAND:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
    case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_INEXACT_RESULT:
    case STATUS_FLOAT_INEXACT_RESULT:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_INVALID_OPERATION:
    case STATUS_FLOAT_INVALID_OPERATION:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_OVERFLOW:
    case STATUS_FLOAT_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_STACK_CHECK:
    case STATUS_FLOAT_STACK_CHECK:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_UNDERFLOW:
    case STATUS_FLOAT_UNDERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_FLOAT_DIVIDE_BY_ZERO:
    case STATUS_FLOAT_DIVIDE_BY_ZERO:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_INTEGER_DIVIDE_BY_ZERO:
    case STATUS_INTEGER_DIVIDE_BY_ZERO:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case STATUS_INTEGER_OVERFLOW:
    case STATUS_INTEGER_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW");
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
      break;
    case EXCEPTION_BREAKPOINT:
    case EXCEPTION_BREAKPOINT:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT");
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
      break;
    case DBG_CONTROL_C:
    case DBG_CONTROL_C:
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C");
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C");
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      break;
      break;
    case DBG_CONTROL_BREAK:
    case DBG_CONTROL_BREAK:
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK");
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK");
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      break;
      break;
    case EXCEPTION_SINGLE_STEP:
    case EXCEPTION_SINGLE_STEP:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP");
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
      break;
    case EXCEPTION_ILLEGAL_INSTRUCTION:
    case EXCEPTION_ILLEGAL_INSTRUCTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
      break;
    case EXCEPTION_PRIV_INSTRUCTION:
    case EXCEPTION_PRIV_INSTRUCTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
      break;
    case EXCEPTION_NONCONTINUABLE_EXCEPTION:
    case EXCEPTION_NONCONTINUABLE_EXCEPTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION");
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
      break;
    default:
    default:
      if (current_event.u.Exception.dwFirstChance)
      if (current_event.u.Exception.dwFirstChance)
        return 0;
        return 0;
      printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
      printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
                    current_event.u.Exception.ExceptionRecord.ExceptionCode,
                    current_event.u.Exception.ExceptionRecord.ExceptionCode,
        (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress);
        (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress);
      ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
      ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
      break;
      break;
    }
    }
  exception_count++;
  exception_count++;
  last_sig = ourstatus->value.sig;
  last_sig = ourstatus->value.sig;
  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=%ld, ctid=%ld, %s);\n",
  DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n",
                  current_event.dwProcessId, current_event.dwThreadId,
                  current_event.dwProcessId, current_event.dwThreadId,
                  continue_status == DBG_CONTINUE ?
                  continue_status == DBG_CONTINUE ?
                  "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED"));
                  "DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED"));
  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 == (int) th->id)) && th->suspend_count)
      if (((id == -1) || (id == (int) 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;
          if (debug_registers_changed)
          if (debug_registers_changed)
            {
            {
              /* Only change the value of the debug reisters */
              /* Only change the value of the debug reisters */
              th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
              th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
              th->context.Dr0 = dr[0];
              th->context.Dr0 = dr[0];
              th->context.Dr1 = dr[1];
              th->context.Dr1 = dr[1];
              th->context.Dr2 = dr[2];
              th->context.Dr2 = dr[2];
              th->context.Dr3 = dr[3];
              th->context.Dr3 = dr[3];
              /* th->context.Dr6 = dr[6];
              /* th->context.Dr6 = dr[6];
                 FIXME: should we set dr6 also ?? */
                 FIXME: should we set dr6 also ?? */
              th->context.Dr7 = dr[7];
              th->context.Dr7 = dr[7];
              CHECK (SetThreadContext (th->h, &th->context));
              CHECK (SetThreadContext (th->h, &th->context));
              th->context.ContextFlags = 0;
              th->context.ContextFlags = 0;
            }
            }
        }
        }
 
 
  debug_registers_changed = 0;
  debug_registers_changed = 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)
{
{
  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;
  int retval = 0;
  int retval = 0;
 
 
  last_sig = TARGET_SIGNAL_0;
  last_sig = TARGET_SIGNAL_0;
 
 
  if (!(debug_event = WaitForDebugEvent (&current_event, 1000)))
  if (!(debug_event = WaitForDebugEvent (&current_event, 1000)))
    goto out;
    goto out;
 
 
  event_count++;
  event_count++;
  continue_status = DBG_CONTINUE;
  continue_status = DBG_CONTINUE;
 
 
  event_code = current_event.dwDebugEventCode;
  event_code = current_event.dwDebugEventCode;
  ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
  ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
 
 
  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"));
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      /* 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 (
                           target_pid_to_str (
                             pid_to_ptid (current_event.dwThreadId)));
                             pid_to_ptid (current_event.dwThreadId)));
      retval = current_event.dwThreadId;
      retval = 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"));
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      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"));
      CloseHandle (current_event.u.CreateProcessInfo.hFile);
      CloseHandle (current_event.u.CreateProcessInfo.hFile);
      if (++saw_create != 1)
      if (++saw_create != 1)
        {
        {
          CloseHandle (current_event.u.CreateProcessInfo.hProcess);
          CloseHandle (current_event.u.CreateProcessInfo.hProcess);
          break;
          break;
        }
        }
 
 
      current_process_handle = current_event.u.CreateProcessInfo.hProcess;
      current_process_handle = current_event.u.CreateProcessInfo.hProcess;
      main_thread_id = current_event.dwThreadId;
      main_thread_id = current_event.dwThreadId;
      /* Add the main thread */
      /* Add the main thread */
#if 0
#if 0
      th = child_add_thread (current_event.dwProcessId,
      th = child_add_thread (current_event.dwProcessId,
                             current_event.u.CreateProcessInfo.hProcess);
                             current_event.u.CreateProcessInfo.hProcess);
#endif
#endif
      th = child_add_thread (main_thread_id,
      th = child_add_thread (main_thread_id,
                             current_event.u.CreateProcessInfo.hThread);
                             current_event.u.CreateProcessInfo.hThread);
      retval = ourstatus->value.related_pid = current_event.dwThreadId;
      retval = ourstatus->value.related_pid = current_event.dwThreadId;
      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"));
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      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 = main_thread_id;
      retval = main_thread_id;
      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"));
      CloseHandle (current_event.u.LoadDll.hFile);
      CloseHandle (current_event.u.LoadDll.hFile);
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      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 */
      ourstatus->kind = TARGET_WAITKIND_LOADED;
      ourstatus->kind = TARGET_WAITKIND_LOADED;
      ourstatus->value.integer = 0;
      ourstatus->value.integer = 0;
      retval = main_thread_id;
      retval = main_thread_id;
      re_enable_breakpoints_in_shlibs ();
      re_enable_breakpoints_in_shlibs ();
      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"));
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL);
      catch_errors (handle_unload_dll, NULL, (char *) "", RETURN_MASK_ALL);
      registers_changed ();     /* mark all regs invalid */
      registers_changed ();     /* mark all regs invalid */
      /* ourstatus->kind = TARGET_WAITKIND_UNLOADED;
      /* ourstatus->kind = TARGET_WAITKIND_UNLOADED;
         does not exist yet. */
         does not exist yet. */
      break;
      break;
 
 
    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 (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      if (handle_exception (ourstatus))
      if (handle_exception (ourstatus))
        retval = current_event.dwThreadId;
        retval = current_event.dwThreadId;
      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"));
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      if (handle_output_debug_string (ourstatus))
      if (handle_output_debug_string (ourstatus))
        retval = main_thread_id;
        retval = main_thread_id;
      break;
      break;
 
 
    default:
    default:
      if (saw_create != 1)
      if (saw_create != 1)
        break;
        break;
      printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n",
      printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n",
                         (DWORD) current_event.dwProcessId,
                         (DWORD) current_event.dwProcessId,
                         (DWORD) current_event.dwThreadId);
                         (DWORD) current_event.dwThreadId);
      printf_unfiltered ("                 unknown event code %ld\n",
      printf_unfiltered ("                 unknown event code %ld\n",
                         current_event.dwDebugEventCode);
                         current_event.dwDebugEventCode);
      break;
      break;
    }
    }
 
 
  if (!retval || saw_create != 1)
  if (!retval || saw_create != 1)
    CHECK (child_continue (continue_status, -1));
    CHECK (child_continue (continue_status, -1));
  else
  else
    {
    {
      current_thread = th ? : thread_rec (current_event.dwThreadId, TRUE);
      current_thread = th ? : thread_rec (current_event.dwThreadId, TRUE);
      inferior_ptid = pid_to_ptid (retval);
      inferior_ptid = pid_to_ptid (retval);
    }
    }
 
 
out:
out:
  return retval;
  return retval;
}
}
 
 
/* Wait for interesting events to occur in the target process. */
/* Wait for interesting events to occur in the target process. */
static ptid_t
static ptid_t
child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
child_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
{
  int pid = PIDGET (ptid);
  int pid = PIDGET (ptid);
 
 
  /* 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)
    {
    {
      int retval = get_child_debug_event (pid, ourstatus);
      int retval = get_child_debug_event (pid, ourstatus);
      if (retval)
      if (retval)
        return pid_to_ptid (retval);
        return pid_to_ptid (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 ();
        }
        }
    }
    }
}
}
 
 
static void
static void
do_initial_child_stuff (DWORD pid)
do_initial_child_stuff (DWORD pid)
{
{
  extern int stop_after_trap;
  extern int stop_after_trap;
  int i;
  int i;
 
 
  last_sig = TARGET_SIGNAL_0;
  last_sig = TARGET_SIGNAL_0;
  event_count = 0;
  event_count = 0;
  exception_count = 0;
  exception_count = 0;
  debug_registers_changed = 0;
  debug_registers_changed = 0;
  debug_registers_used = 0;
  debug_registers_used = 0;
  for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++)
  for (i = 0; i < sizeof (dr) / sizeof (dr[0]); i++)
    dr[i] = 0;
    dr[i] = 0;
  current_event.dwProcessId = pid;
  current_event.dwProcessId = pid;
  memset (&current_event, 0, sizeof (current_event));
  memset (&current_event, 0, sizeof (current_event));
  push_target (&child_ops);
  push_target (&child_ops);
  child_init_thread_list ();
  child_init_thread_list ();
  disable_breakpoints_in_shlibs (1);
  disable_breakpoints_in_shlibs (1);
  child_clear_solibs ();
  child_clear_solibs ();
  clear_proceed_status ();
  clear_proceed_status ();
  init_wait_for_inferior ();
  init_wait_for_inferior ();
 
 
  target_terminal_init ();
  target_terminal_init ();
  target_terminal_inferior ();
  target_terminal_inferior ();
 
 
  while (1)
  while (1)
    {
    {
      stop_after_trap = 1;
      stop_after_trap = 1;
      wait_for_inferior ();
      wait_for_inferior ();
      if (stop_signal != TARGET_SIGNAL_TRAP)
      if (stop_signal != TARGET_SIGNAL_TRAP)
        resume (0, stop_signal);
        resume (0, stop_signal);
      else
      else
        break;
        break;
    }
    }
  stop_after_trap = 0;
  stop_after_trap = 0;
  return;
  return;
}
}
 
 
/* Since Windows XP, detaching from a process is supported by Windows.
/* Since Windows XP, detaching from a process is supported by Windows.
   The following code tries loading the appropriate functions dynamically.
   The following code tries loading the appropriate functions dynamically.
   If loading these functions succeeds use them to actually detach from
   If loading these functions succeeds use them to actually detach from
   the inferior process, otherwise behave as usual, pretending that
   the inferior process, otherwise behave as usual, pretending that
   detach has worked. */
   detach has worked. */
static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL);
static BOOL WINAPI (*DebugSetProcessKillOnExit)(BOOL);
static BOOL WINAPI (*DebugActiveProcessStop)(DWORD);
static BOOL WINAPI (*DebugActiveProcessStop)(DWORD);
 
 
static int
static int
has_detach_ability (void)
has_detach_ability (void)
{
{
  static HMODULE kernel32 = NULL;
  static HMODULE kernel32 = NULL;
 
 
  if (!kernel32)
  if (!kernel32)
    kernel32 = LoadLibrary ("kernel32.dll");
    kernel32 = LoadLibrary ("kernel32.dll");
  if (kernel32)
  if (kernel32)
    {
    {
      if (!DebugSetProcessKillOnExit)
      if (!DebugSetProcessKillOnExit)
        DebugSetProcessKillOnExit = GetProcAddress (kernel32,
        DebugSetProcessKillOnExit = GetProcAddress (kernel32,
                                                 "DebugSetProcessKillOnExit");
                                                 "DebugSetProcessKillOnExit");
      if (!DebugActiveProcessStop)
      if (!DebugActiveProcessStop)
        DebugActiveProcessStop = GetProcAddress (kernel32,
        DebugActiveProcessStop = GetProcAddress (kernel32,
                                                 "DebugActiveProcessStop");
                                                 "DebugActiveProcessStop");
      if (DebugSetProcessKillOnExit && DebugActiveProcessStop)
      if (DebugSetProcessKillOnExit && DebugActiveProcessStop)
        return 1;
        return 1;
    }
    }
  return 0;
  return 0;
}
}
 
 
/* Attach to process PID, then initialize for debugging it.  */
/* Attach to process PID, then initialize for debugging it.  */
static void
static void
child_attach (char *args, int from_tty)
child_attach (char *args, int from_tty)
{
{
  BOOL ok;
  BOOL ok;
  DWORD pid;
  DWORD pid;
 
 
  if (!args)
  if (!args)
    error_no_arg ("process-id to attach");
    error_no_arg ("process-id to attach");
 
 
  pid = strtoul (args, 0, 0);
  pid = strtoul (args, 0, 0);
  ok = DebugActiveProcess (pid);
  ok = DebugActiveProcess (pid);
  saw_create = 0;
  saw_create = 0;
 
 
  if (!ok)
  if (!ok)
    error ("Can't attach to process.");
    error ("Can't attach to process.");
 
 
  if (has_detach_ability ())
  if (has_detach_ability ())
    {
    {
      attach_flag = 1;
      attach_flag = 1;
      DebugSetProcessKillOnExit (FALSE);
      DebugSetProcessKillOnExit (FALSE);
    }
    }
 
 
  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 (pid_to_ptid (pid)));
                           target_pid_to_str (pid_to_ptid (pid)));
      else
      else
        printf_unfiltered ("Attaching to %s\n",
        printf_unfiltered ("Attaching to %s\n",
                           target_pid_to_str (pid_to_ptid (pid)));
                           target_pid_to_str (pid_to_ptid (pid)));
 
 
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
    }
    }
 
 
  do_initial_child_stuff (pid);
  do_initial_child_stuff (pid);
  target_terminal_ours ();
  target_terminal_ours ();
}
}
 
 
static void
static void
child_detach (char *args, int from_tty)
child_detach (char *args, int from_tty)
{
{
  int detached = 1;
  int detached = 1;
 
 
  if (has_detach_ability ())
  if (has_detach_ability ())
    {
    {
      delete_command (NULL, 0);
      delete_command (NULL, 0);
      child_continue (DBG_CONTINUE, -1);
      child_continue (DBG_CONTINUE, -1);
      if (!DebugActiveProcessStop (current_event.dwProcessId))
      if (!DebugActiveProcessStop (current_event.dwProcessId))
        {
        {
          error ("Can't detach process %lu (error %lu)",
          error ("Can't detach process %lu (error %lu)",
                 current_event.dwProcessId, GetLastError ());
                 current_event.dwProcessId, GetLastError ());
          detached = 0;
          detached = 0;
        }
        }
      DebugSetProcessKillOnExit (FALSE);
      DebugSetProcessKillOnExit (FALSE);
    }
    }
  if (detached && from_tty)
  if (detached && 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, Pid %lu\n", exec_file,
      printf_unfiltered ("Detaching from program: %s, Pid %lu\n", exec_file,
                         current_event.dwProcessId);
                         current_event.dwProcessId);
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
    }
    }
  inferior_ptid = null_ptid;
  inferior_ptid = null_ptid;
  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 (struct target_ops *ignore)
child_files_info (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_ptid));
      attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid));
}
}
 
 
/* ARGSUSED */
/* ARGSUSED */
static void
static void
child_open (char *arg, int from_tty)
child_open (char *arg, 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_ptid to its pid.
/* Start an inferior win32 child process and sets inferior_ptid 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 (char *exec_file, char *allargs, char **env)
child_create_inferior (char *exec_file, char *allargs, char **env)
{
{
  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;
  BOOL ret;
  BOOL ret;
  DWORD flags;
  DWORD flags;
  char *args;
  char *args;
  char real_path[MAXPATHLEN];
  char real_path[MAXPATHLEN];
  char *toexec;
  char *toexec;
  char shell[MAX_PATH + 1]; /* Path to shell */
  char shell[MAX_PATH + 1]; /* Path to shell */
  const char *sh;
  const char *sh;
 
 
  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);
 
 
  if (!useshell)
  if (!useshell)
    {
    {
      flags = DEBUG_ONLY_THIS_PROCESS;
      flags = DEBUG_ONLY_THIS_PROCESS;
      cygwin_conv_to_win32_path (exec_file, real_path);
      cygwin_conv_to_win32_path (exec_file, real_path);
      toexec = real_path;
      toexec = real_path;
    }
    }
  else
  else
    {
    {
      char *newallargs;
      char *newallargs;
      sh = getenv ("SHELL");
      sh = getenv ("SHELL");
      if (!sh)
      if (!sh)
        sh = "/bin/sh";
        sh = "/bin/sh";
      cygwin_conv_to_win32_path (sh, shell);
      cygwin_conv_to_win32_path (sh, shell);
      newallargs = alloca (sizeof (" -c 'exec  '") + strlen (exec_file)
      newallargs = alloca (sizeof (" -c 'exec  '") + strlen (exec_file)
                           + strlen (allargs) + 2);
                           + strlen (allargs) + 2);
      sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs);
      sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs);
      allargs = newallargs;
      allargs = newallargs;
      toexec = shell;
      toexec = shell;
      flags = DEBUG_PROCESS;
      flags = DEBUG_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 (toexec) + strlen (allargs) + 2);
  args = alloca (strlen (toexec) + strlen (allargs) + 2);
  strcpy (args, toexec);
  strcpy (args, toexec);
  strcat (args, " ");
  strcat (args, " ");
  strcat (args, allargs);
  strcat (args, allargs);
 
 
  /* Prepare the environment vars for CreateProcess.  */
  /* Prepare the environment vars for CreateProcess.  */
  {
  {
    /* This code used to assume all env vars were file names and would
    /* This code used 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 (cygwin_posix_path_list_p (env[i] + len))
                if (cygwin_posix_path_list_p (env[i] + len))
                  envlen += len
                  envlen += len
                    + cygwin_posix_to_win32_path_list_buf_size (env[i] + len);
                    + cygwin_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 (cygwin_posix_path_list_p (env[i] + len))
                if (cygwin_posix_path_list_p (env[i] + len))
                  {
                  {
                    memcpy (temp, env[i], len);
                    memcpy (temp, env[i], len);
                    cygwin_posix_to_win32_path_list (env[i] + len, temp + len);
                    cygwin_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, (unsigned) GetLastError ());
    error ("Error creating process %s, (error %d)\n", exec_file, (unsigned) GetLastError ());
 
 
  CloseHandle (pi.hThread);
  CloseHandle (pi.hThread);
  CloseHandle (pi.hProcess);
  CloseHandle (pi.hProcess);
 
 
  if (useshell && shell[0] != '\0')
  if (useshell && shell[0] != '\0')
    saw_create = -1;
    saw_create = -1;
  else
  else
    saw_create = 0;
    saw_create = 0;
 
 
  do_initial_child_stuff (pi.dwProcessId);
  do_initial_child_stuff (pi.dwProcessId);
 
 
  /* 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 (void)
child_mourn_inferior (void)
{
{
  (void) child_continue (DBG_CONTINUE, -1);
  (void) child_continue (DBG_CONTINUE, -1);
  i386_cleanup_dregs();
  i386_cleanup_dregs();
  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 (void)
child_stop (void)
{
{
  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 mem_attrib *mem,
                   int write, struct mem_attrib *mem,
                   struct target_ops *target)
                   struct target_ops *target)
{
{
  DWORD done;
  DWORD done;
  if (write)
  if (write)
    {
    {
      DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
      DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
                  len, (DWORD) memaddr));
                  len, (DWORD) 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%08lx\n",
      DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n",
                  len, (DWORD) memaddr));
                  len, (DWORD) 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 (ptid_t ptid, int step, enum target_signal sig)
child_resume (ptid_t ptid, int step, enum target_signal sig)
{
{
  thread_info *th;
  thread_info *th;
  DWORD continue_status = DBG_CONTINUE;
  DWORD continue_status = DBG_CONTINUE;
 
 
  int pid = PIDGET (ptid);
  int pid = PIDGET (ptid);
 
 
  if (sig != TARGET_SIGNAL_0)
  if (sig != TARGET_SIGNAL_0)
    {
    {
      if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT)
      if (current_event.dwDebugEventCode != EXCEPTION_DEBUG_EVENT)
        {
        {
          DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig));
          DEBUG_EXCEPT(("Cannot continue with signal %d here.\n",sig));
        }
        }
      else if (sig == last_sig)
      else if (sig == last_sig)
        continue_status = DBG_EXCEPTION_NOT_HANDLED;
        continue_status = DBG_EXCEPTION_NOT_HANDLED;
      else
      else
#if 0
#if 0
/* This code does not seem to work, because
/* This code does not seem to work, because
  the kernel does probably not consider changes in the ExceptionRecord
  the kernel does probably not consider changes in the ExceptionRecord
  structure when passing the exception to the inferior.
  structure when passing the exception to the inferior.
  Note that this seems possible in the exception handler itself.  */
  Note that this seems possible in the exception handler itself.  */
        {
        {
          int i;
          int i;
          for (i = 0; xlate[i].them != -1; i++)
          for (i = 0; xlate[i].them != -1; i++)
            if (xlate[i].us == sig)
            if (xlate[i].us == sig)
              {
              {
                current_event.u.Exception.ExceptionRecord.ExceptionCode =
                current_event.u.Exception.ExceptionRecord.ExceptionCode =
                  xlate[i].them;
                  xlate[i].them;
                continue_status = DBG_EXCEPTION_NOT_HANDLED;
                continue_status = DBG_EXCEPTION_NOT_HANDLED;
                break;
                break;
              }
              }
          if (continue_status == DBG_CONTINUE)
          if (continue_status == DBG_CONTINUE)
            {
            {
              DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig));
              DEBUG_EXCEPT(("Cannot continue with signal %d.\n",sig));
            }
            }
        }
        }
#endif
#endif
        DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n",
        DEBUG_EXCEPT(("Can only continue with recieved signal %d.\n",
          last_sig));
          last_sig));
    }
    }
 
 
  last_sig = TARGET_SIGNAL_0;
  last_sig = TARGET_SIGNAL_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 (th)
  if (th)
    {
    {
      if (step)
      if (step)
        {
        {
          /* 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;
        }
        }
 
 
      if (th->context.ContextFlags)
      if (th->context.ContextFlags)
        {
        {
     if (debug_registers_changed)
     if (debug_registers_changed)
       {
       {
          th->context.Dr0 = dr[0];
          th->context.Dr0 = dr[0];
          th->context.Dr1 = dr[1];
          th->context.Dr1 = dr[1];
          th->context.Dr2 = dr[2];
          th->context.Dr2 = dr[2];
          th->context.Dr3 = dr[3];
          th->context.Dr3 = dr[3];
          /* th->context.Dr6 = dr[6];
          /* th->context.Dr6 = dr[6];
           FIXME: should we set dr6 also ?? */
           FIXME: should we set dr6 also ?? */
          th->context.Dr7 = dr[7];
          th->context.Dr7 = dr[7];
       }
       }
          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 (void)
child_prepare_to_store (void)
{
{
  /* Do nothing, since we can store individual regs */
  /* Do nothing, since we can store individual regs */
}
}
 
 
static int
static int
child_can_run (void)
child_can_run (void)
{
{
  return 1;
  return 1;
}
}
 
 
static void
static void
child_close (int x)
child_close (int x)
{
{
  DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n",
  DEBUG_EVENTS (("gdb: child_close, inferior_ptid=%d\n",
                PIDGET (inferior_ptid)));
                PIDGET (inferior_ptid)));
}
}
 
 
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_save_ours = terminal_save_ours;
  child_ops.to_terminal_save_ours = terminal_save_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_win32_nat (void)
_initialize_win32_nat (void)
{
{
  struct cmd_list_element *c;
  struct cmd_list_element *c;
 
 
  init_child_ops ();
  init_child_ops ();
 
 
  c = add_com ("dll-symbols", class_files, dll_symbol_command,
  c = add_com ("dll-symbols", class_files, dll_symbol_command,
               "Load dll library symbols from FILE.");
               "Load dll library symbols from FILE.");
  set_cmd_completer (c, filename_completer);
  set_cmd_completer (c, filename_completer);
 
 
  add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1);
  add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1);
 
 
  add_show_from_set (add_set_cmd ("shell", class_support, var_boolean,
  add_show_from_set (add_set_cmd ("shell", class_support, var_boolean,
                                  (char *) &useshell,
                                  (char *) &useshell,
                 "Set use of shell to start subprocess.",
                 "Set use of shell to start subprocess.",
                                  &setlist),
                                  &setlist),
                     &showlist);
                     &showlist);
 
 
  add_show_from_set (add_set_cmd ("new-console", class_support, var_boolean,
  add_show_from_set (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_set_cmd ("new-group", class_support, var_boolean,
  add_show_from_set (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_set_cmd ("debugexec", class_support, var_boolean,
  add_show_from_set (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_set_cmd ("debugevents", class_support, var_boolean,
  add_show_from_set (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_set_cmd ("debugmemory", class_support, var_boolean,
  add_show_from_set (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_set_cmd ("debugexceptions", class_support, var_boolean,
  add_show_from_set (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_info ("dll", info_dll_command, "Status of loaded DLLs.");
  add_info ("dll", info_dll_command, "Status of loaded DLLs.");
  add_info_alias ("sharedlibrary", "dll", 1);
  add_info_alias ("sharedlibrary", "dll", 1);
 
 
  add_prefix_cmd ("w32", class_info, info_w32_command,
  add_prefix_cmd ("w32", class_info, info_w32_command,
                  "Print information specific to Win32 debugging.",
                  "Print information specific to Win32 debugging.",
                  &info_w32_cmdlist, "info w32 ", 0, &infolist);
                  &info_w32_cmdlist, "info w32 ", 0, &infolist);
 
 
  add_cmd ("selector", class_info, display_selectors,
  add_cmd ("selector", class_info, display_selectors,
           "Display selectors infos.",
           "Display selectors infos.",
           &info_w32_cmdlist);
           &info_w32_cmdlist);
 
 
  add_target (&child_ops);
  add_target (&child_ops);
}
}
 
 
/* Hardware watchpoint support, adapted from go32-nat.c code.  */
/* Hardware watchpoint support, adapted from go32-nat.c code.  */
 
 
/* Pass the address ADDR to the inferior in the I'th debug register.
/* Pass the address ADDR to the inferior in the I'th debug register.
   Here we just store the address in dr array, the registers will be
   Here we just store the address in dr array, the registers will be
   actually set up when child_continue is called.  */
   actually set up when child_continue is called.  */
void
void
cygwin_set_dr (int i, CORE_ADDR addr)
cygwin_set_dr (int i, CORE_ADDR addr)
{
{
  if (i < 0 || i > 3)
  if (i < 0 || i > 3)
    internal_error (__FILE__, __LINE__,
    internal_error (__FILE__, __LINE__,
                    "Invalid register %d in cygwin_set_dr.\n", i);
                    "Invalid register %d in cygwin_set_dr.\n", i);
  dr[i] = (unsigned) addr;
  dr[i] = (unsigned) addr;
  debug_registers_changed = 1;
  debug_registers_changed = 1;
  debug_registers_used = 1;
  debug_registers_used = 1;
}
}
 
 
/* Pass the value VAL to the inferior in the DR7 debug control
/* Pass the value VAL to the inferior in the DR7 debug control
   register.  Here we just store the address in D_REGS, the watchpoint
   register.  Here we just store the address in D_REGS, the watchpoint
   will be actually set up in child_wait.  */
   will be actually set up in child_wait.  */
void
void
cygwin_set_dr7 (unsigned val)
cygwin_set_dr7 (unsigned val)
{
{
  dr[7] = val;
  dr[7] = val;
  debug_registers_changed = 1;
  debug_registers_changed = 1;
  debug_registers_used = 1;
  debug_registers_used = 1;
}
}
 
 
/* Get the value of the DR6 debug status register from the inferior.
/* Get the value of the DR6 debug status register from the inferior.
   Here we just return the value stored in dr[6]
   Here we just return the value stored in dr[6]
   by the last call to thread_rec for current_event.dwThreadId id.  */
   by the last call to thread_rec for current_event.dwThreadId id.  */
unsigned
unsigned
cygwin_get_dr6 (void)
cygwin_get_dr6 (void)
{
{
  return dr[6];
  return dr[6];
}
}
 
 
 
 
/* 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 (ptid_t ptid)
win32_child_thread_alive (ptid_t ptid)
{
{
  int pid = PIDGET (ptid);
  int pid = PIDGET (ptid);
 
 
  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 (ptid_t ptid)
cygwin_pid_to_str (ptid_t ptid)
{
{
  static char buf[80];
  static char buf[80];
  int pid = PIDGET (ptid);
  int pid = PIDGET (ptid);
 
 
  if ((DWORD) pid == current_event.dwProcessId)
  if ((DWORD) pid == current_event.dwProcessId)
    sprintf (buf, "process %d", pid);
    sprintf (buf, "process %d", pid);
  else
  else
    sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid);
    sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid);
  return buf;
  return buf;
}
}
 
 
static int
static int
core_dll_symbols_add (char *dll_name, DWORD base_addr)
core_dll_symbols_add (char *dll_name, DWORD base_addr)
{
{
  struct objfile *objfile;
  struct objfile *objfile;
  char *objfile_basename;
  char *objfile_basename;
  const char *dll_basename;
  const char *dll_basename;
 
 
  if (!(dll_basename = strrchr (dll_name, '/')))
  if (!(dll_basename = strrchr (dll_name, '/')))
    dll_basename = dll_name;
    dll_basename = dll_name;
  else
  else
    dll_basename++;
    dll_basename++;
 
 
  ALL_OBJFILES (objfile)
  ALL_OBJFILES (objfile)
  {
  {
    objfile_basename = strrchr (objfile->name, '/');
    objfile_basename = strrchr (objfile->name, '/');
 
 
    if (objfile_basename &&
    if (objfile_basename &&
        strcmp (dll_basename, objfile_basename + 1) == 0)
        strcmp (dll_basename, objfile_basename + 1) == 0)
      {
      {
        printf_unfiltered ("%08lx:%s (symbols previously loaded)\n",
        printf_unfiltered ("%08lx:%s (symbols previously loaded)\n",
                           base_addr, dll_name);
                           base_addr, dll_name);
        goto out;
        goto out;
      }
      }
  }
  }
 
 
  register_loaded_dll (dll_name, base_addr + 0x1000);
  register_loaded_dll (dll_name, base_addr + 0x1000);
  solib_symbols_add (dll_name, 0, (CORE_ADDR) base_addr + 0x1000);
  solib_symbols_add (dll_name, 0, (CORE_ADDR) base_addr + 0x1000);
 
 
out:
out:
  return 1;
  return 1;
}
}
 
 
typedef struct
typedef struct
{
{
  struct target_ops *target;
  struct target_ops *target;
  bfd_vma addr;
  bfd_vma addr;
}
}
map_code_section_args;
map_code_section_args;
 
 
static void
static void
map_single_dll_code_section (bfd * abfd, asection * sect, void *obj)
map_single_dll_code_section (bfd * abfd, asection * sect, void *obj)
{
{
  int old;
  int old;
  int update_coreops;
  int update_coreops;
  struct section_table *new_target_sect_ptr;
  struct section_table *new_target_sect_ptr;
 
 
  map_code_section_args *args = (map_code_section_args *) obj;
  map_code_section_args *args = (map_code_section_args *) obj;
  struct target_ops *target = args->target;
  struct target_ops *target = args->target;
  if (sect->flags & SEC_CODE)
  if (sect->flags & SEC_CODE)
    {
    {
      update_coreops = core_ops.to_sections == target->to_sections;
      update_coreops = core_ops.to_sections == target->to_sections;
 
 
      if (target->to_sections)
      if (target->to_sections)
        {
        {
          old = target->to_sections_end - target->to_sections;
          old = target->to_sections_end - target->to_sections;
          target->to_sections = (struct section_table *)
          target->to_sections = (struct section_table *)
            xrealloc ((char *) target->to_sections,
            xrealloc ((char *) target->to_sections,
                      (sizeof (struct section_table)) * (1 + old));
                      (sizeof (struct section_table)) * (1 + old));
        }
        }
      else
      else
        {
        {
          old = 0;
          old = 0;
          target->to_sections = (struct section_table *)
          target->to_sections = (struct section_table *)
            xmalloc ((sizeof (struct section_table)));
            xmalloc ((sizeof (struct section_table)));
        }
        }
      target->to_sections_end = target->to_sections + (1 + old);
      target->to_sections_end = target->to_sections + (1 + old);
 
 
      /* Update the to_sections field in the core_ops structure
      /* Update the to_sections field in the core_ops structure
         if needed.  */
         if needed.  */
      if (update_coreops)
      if (update_coreops)
        {
        {
          core_ops.to_sections = target->to_sections;
          core_ops.to_sections = target->to_sections;
          core_ops.to_sections_end = target->to_sections_end;
          core_ops.to_sections_end = target->to_sections_end;
        }
        }
      new_target_sect_ptr = target->to_sections + old;
      new_target_sect_ptr = target->to_sections + old;
      new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect);
      new_target_sect_ptr->addr = args->addr + bfd_section_vma (abfd, sect);
      new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) +
      new_target_sect_ptr->endaddr = args->addr + bfd_section_vma (abfd, sect) +
        bfd_section_size (abfd, sect);;
        bfd_section_size (abfd, sect);;
      new_target_sect_ptr->the_bfd_section = sect;
      new_target_sect_ptr->the_bfd_section = sect;
      new_target_sect_ptr->bfd = abfd;
      new_target_sect_ptr->bfd = abfd;
    }
    }
}
}
 
 
static int
static int
dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target)
dll_code_sections_add (const char *dll_name, int base_addr, struct target_ops *target)
{
{
  bfd *dll_bfd;
  bfd *dll_bfd;
  map_code_section_args map_args;
  map_code_section_args map_args;
  asection *lowest_sect;
  asection *lowest_sect;
  char *name;
  char *name;
  if (dll_name == NULL || target == NULL)
  if (dll_name == NULL || target == NULL)
    return 0;
    return 0;
  name = xstrdup (dll_name);
  name = xstrdup (dll_name);
  dll_bfd = bfd_openr (name, "pei-i386");
  dll_bfd = bfd_openr (name, "pei-i386");
  if (dll_bfd == NULL)
  if (dll_bfd == NULL)
    return 0;
    return 0;
 
 
  if (bfd_check_format (dll_bfd, bfd_object))
  if (bfd_check_format (dll_bfd, bfd_object))
    {
    {
      lowest_sect = bfd_get_section_by_name (dll_bfd, ".text");
      lowest_sect = bfd_get_section_by_name (dll_bfd, ".text");
      if (lowest_sect == NULL)
      if (lowest_sect == NULL)
        return 0;
        return 0;
      map_args.target = target;
      map_args.target = target;
      map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect);
      map_args.addr = base_addr - bfd_section_vma (dll_bfd, lowest_sect);
 
 
      bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args));
      bfd_map_over_sections (dll_bfd, &map_single_dll_code_section, (void *) (&map_args));
    }
    }
 
 
  return 1;
  return 1;
}
}
 
 
static void
static void
core_section_load_dll_symbols (bfd * abfd, asection * sect, void *obj)
core_section_load_dll_symbols (bfd * abfd, asection * sect, void *obj)
{
{
  struct target_ops *target = (struct target_ops *) obj;
  struct target_ops *target = (struct target_ops *) obj;
 
 
  DWORD base_addr;
  DWORD base_addr;
 
 
  int dll_name_size;
  int dll_name_size;
  char *dll_name = NULL;
  char *dll_name = NULL;
  char *buf = NULL;
  char *buf = NULL;
  struct win32_pstatus *pstatus;
  struct win32_pstatus *pstatus;
  char *p;
  char *p;
 
 
  if (strncmp (sect->name, ".module", 7))
  if (strncmp (sect->name, ".module", 7))
    return;
    return;
 
 
  buf = (char *) xmalloc (sect->_raw_size + 1);
  buf = (char *) xmalloc (sect->_raw_size + 1);
  if (!buf)
  if (!buf)
    {
    {
      printf_unfiltered ("memory allocation failed for %s\n", sect->name);
      printf_unfiltered ("memory allocation failed for %s\n", sect->name);
      goto out;
      goto out;
    }
    }
  if (!bfd_get_section_contents (abfd, sect, buf, 0, sect->_raw_size))
  if (!bfd_get_section_contents (abfd, sect, buf, 0, sect->_raw_size))
    goto out;
    goto out;
 
 
  pstatus = (struct win32_pstatus *) buf;
  pstatus = (struct win32_pstatus *) buf;
 
 
  memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr));
  memmove (&base_addr, &(pstatus->data.module_info.base_address), sizeof (base_addr));
  dll_name_size = pstatus->data.module_info.module_name_size;
  dll_name_size = pstatus->data.module_info.module_name_size;
  if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > sect->_raw_size)
  if (offsetof (struct win32_pstatus, data.module_info.module_name) + dll_name_size > sect->_raw_size)
      goto out;
      goto out;
 
 
  dll_name = (char *) xmalloc (dll_name_size + 1);
  dll_name = (char *) xmalloc (dll_name_size + 1);
  if (!dll_name)
  if (!dll_name)
    {
    {
      printf_unfiltered ("memory allocation failed for %s\n", sect->name);
      printf_unfiltered ("memory allocation failed for %s\n", sect->name);
      goto out;
      goto out;
    }
    }
  strncpy (dll_name, pstatus->data.module_info.module_name, dll_name_size);
  strncpy (dll_name, pstatus->data.module_info.module_name, dll_name_size);
 
 
  while ((p = strchr (dll_name, '\\')))
  while ((p = strchr (dll_name, '\\')))
    *p = '/';
    *p = '/';
 
 
  if (!core_dll_symbols_add (dll_name, (DWORD) base_addr))
  if (!core_dll_symbols_add (dll_name, (DWORD) base_addr))
    printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name);
    printf_unfiltered ("%s: Failed to load dll symbols.\n", dll_name);
 
 
  if (!dll_code_sections_add (dll_name, (DWORD) base_addr + 0x1000, target))
  if (!dll_code_sections_add (dll_name, (DWORD) base_addr + 0x1000, target))
    printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name);
    printf_unfiltered ("%s: Failed to map dll code sections.\n", dll_name);
 
 
out:
out:
  if (buf)
  if (buf)
    xfree (buf);
    xfree (buf);
  if (dll_name)
  if (dll_name)
    xfree (dll_name);
    xfree (dll_name);
  return;
  return;
}
}
 
 
void
void
child_solib_add (char *filename, int from_tty, struct target_ops *target,
child_solib_add (char *filename, int from_tty, struct target_ops *target,
                 int readsyms)
                 int readsyms)
{
{
  if (!readsyms)
  if (!readsyms)
    return;
    return;
  if (core_bfd)
  if (core_bfd)
    {
    {
      child_clear_solibs ();
      child_clear_solibs ();
      bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, target);
      bfd_map_over_sections (core_bfd, &core_section_load_dll_symbols, target);
    }
    }
  else
  else
    {
    {
      if (solib_end && solib_end->name)
      if (solib_end && solib_end->name)
             solib_end->objfile = solib_symbols_add (solib_end->name, from_tty,
             solib_end->objfile = solib_symbols_add (solib_end->name, from_tty,
                                                solib_end->load_addr);
                                                solib_end->load_addr);
    }
    }
}
}
 
 
static void
static void
fetch_elf_core_registers (char *core_reg_sect,
fetch_elf_core_registers (char *core_reg_sect,
                          unsigned core_reg_size,
                          unsigned core_reg_size,
                          int which,
                          int which,
                          CORE_ADDR reg_addr)
                          CORE_ADDR reg_addr)
{
{
  int r;
  int r;
  if (core_reg_size < sizeof (CONTEXT))
  if (core_reg_size < sizeof (CONTEXT))
    {
    {
      error ("Core file register section too small (%u bytes).", core_reg_size);
      error ("Core file register section too small (%u bytes).", core_reg_size);
      return;
      return;
    }
    }
  for (r = 0; r < NUM_REGS; r++)
  for (r = 0; r < NUM_REGS; r++)
    supply_register (r, core_reg_sect + mappings[r]);
    supply_register (r, core_reg_sect + mappings[r]);
}
}
 
 
static struct core_fns win32_elf_core_fns =
static struct core_fns win32_elf_core_fns =
{
{
  bfd_target_elf_flavour,
  bfd_target_elf_flavour,
  default_check_format,
  default_check_format,
  default_core_sniffer,
  default_core_sniffer,
  fetch_elf_core_registers,
  fetch_elf_core_registers,
  NULL
  NULL
};
};
 
 
void
void
_initialize_core_win32 (void)
_initialize_core_win32 (void)
{
{
  add_core_fns (&win32_elf_core_fns);
  add_core_fns (&win32_elf_core_fns);
}
}
 
 
void
void
_initialize_check_for_gdb_ini (void)
_initialize_check_for_gdb_ini (void)
{
{
  char *homedir;
  char *homedir;
  if (inhibit_gdbinit)
  if (inhibit_gdbinit)
    return;
    return;
 
 
  homedir = getenv ("HOME");
  homedir = getenv ("HOME");
  if (homedir)
  if (homedir)
    {
    {
      char *p;
      char *p;
      char *oldini = (char *) alloca (strlen (homedir) +
      char *oldini = (char *) alloca (strlen (homedir) +
                                      sizeof ("/gdb.ini"));
                                      sizeof ("/gdb.ini"));
      strcpy (oldini, homedir);
      strcpy (oldini, homedir);
      p = strchr (oldini, '\0');
      p = strchr (oldini, '\0');
      if (p > oldini && p[-1] != '/')
      if (p > oldini && p[-1] != '/')
        *p++ = '/';
        *p++ = '/';
      strcpy (p, "gdb.ini");
      strcpy (p, "gdb.ini");
      if (access (oldini, 0) == 0)
      if (access (oldini, 0) == 0)
        {
        {
          int len = strlen (oldini);
          int len = strlen (oldini);
          char *newini = alloca (len + 1);
          char *newini = alloca (len + 1);
          sprintf (newini, "%.*s.gdbinit",
          sprintf (newini, "%.*s.gdbinit",
            (int) (len - (sizeof ("gdb.ini") - 1)), oldini);
            (int) (len - (sizeof ("gdb.ini") - 1)), oldini);
          warning ("obsolete '%s' found. Rename to '%s'.", oldini, newini);
          warning ("obsolete '%s' found. Rename to '%s'.", oldini, newini);
        }
        }
    }
    }
}
}
 
 

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