1999-04-16 09:35:26 +08:00
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/* Target-vector operations for controlling win32 child processes, for GDB.
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2000-02-28 14:31:36 +08:00
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Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
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Contributed by Cygnus Solutions, A Red Hat Company.
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1999-04-16 09:35:26 +08:00
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without eve nthe implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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1999-07-08 04:19:36 +08:00
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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1999-04-16 09:35:26 +08:00
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/* by Steve Chamberlain, sac@cygnus.com */
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/* We assume we're being built with and will be used for cygwin. */
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#include "defs.h"
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#include "frame.h" /* required by inferior.h */
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#include "inferior.h"
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#include "target.h"
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#include "gdbcore.h"
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#include "command.h"
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#include <signal.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#ifdef _MSC_VER
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#include "windefs.h"
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#else /* other WIN32 compiler */
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#include <windows.h>
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1999-12-07 11:56:43 +08:00
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#include <imagehlp.h>
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1999-04-16 09:35:26 +08:00
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#endif
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#include "buildsym.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "gdb_string.h"
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#include "gdbthread.h"
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#include "gdbcmd.h"
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#include <sys/param.h>
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1999-12-07 11:56:43 +08:00
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#include <unistd.h>
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1999-04-16 09:35:26 +08:00
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1999-04-27 02:34:20 +08:00
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/* The ui's event loop. */
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extern int (*ui_loop_hook) PARAMS ((int signo));
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/* If we're not using the old Cygwin header file set, define the
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following which never should have been in the generic Win32 API
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headers in the first place since they were our own invention... */
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#ifndef _GNU_H_WINDOWS_H
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#define FLAG_TRACE_BIT 0x100
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#define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
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#endif
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1999-04-16 09:35:26 +08:00
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/* The string sent by cygwin when it processes a signal.
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FIXME: This should be in a cygwin include file. */
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#define CYGWIN_SIGNAL_STRING "cygwin: signal"
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#define CHECK(x) check (x, __FILE__,__LINE__)
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#define DEBUG_EXEC(x) if (debug_exec) printf x
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#define DEBUG_EVENTS(x) if (debug_events) printf x
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#define DEBUG_MEM(x) if (debug_memory) printf x
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#define DEBUG_EXCEPT(x) if (debug_exceptions) printf x
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/* Forward declaration */
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extern struct target_ops child_ops;
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static void child_stop PARAMS ((void));
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static int win32_child_thread_alive PARAMS ((int));
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1999-04-27 02:34:20 +08:00
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void child_kill_inferior PARAMS ((void));
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1999-04-16 09:35:26 +08:00
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/* Thread information structure used to track information that is
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not available in gdb's thread structure. */
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typedef struct thread_info_struct
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1999-07-08 04:19:36 +08:00
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{
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struct thread_info_struct *next;
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DWORD id;
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HANDLE h;
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char *name;
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int suspend_count;
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CONTEXT context;
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1999-12-07 11:56:43 +08:00
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STACKFRAME sf;
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} thread_info;
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static thread_info thread_head = {NULL};
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1999-04-16 09:35:26 +08:00
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1999-12-07 11:56:43 +08:00
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/* The saved state for a continue after breaking back to gdb. */
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static DWORD continue_status;
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1999-04-16 09:35:26 +08:00
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/* The process and thread handles for the above context. */
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static DEBUG_EVENT current_event; /* The current debug event from
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WaitForDebugEvent */
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static HANDLE current_process_handle; /* Currently executing process */
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static thread_info *current_thread; /* Info on currently selected thread */
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1999-07-08 04:19:36 +08:00
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static DWORD main_thread_id; /* Thread ID of the main thread */
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1999-04-16 09:35:26 +08:00
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/* Counts of things. */
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static int exception_count = 0;
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static int event_count = 0;
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/* User options. */
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static int new_console = 0;
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1999-12-07 11:56:43 +08:00
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static int new_group = 1;
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1999-07-08 04:19:36 +08:00
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static int debug_exec = 0; /* show execution */
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static int debug_events = 0; /* show events from kernel */
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static int debug_memory = 0; /* show target memory accesses */
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1999-04-16 09:35:26 +08:00
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static int debug_exceptions = 0; /* show target exceptions */
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/* This vector maps GDB's idea of a register's number into an address
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in the win32 exception context vector.
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It also contains the bit mask needed to load the register in question.
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One day we could read a reg, we could inspect the context we
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already have loaded, if it doesn't have the bit set that we need,
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we read that set of registers in using GetThreadContext. If the
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context already contains what we need, we just unpack it. Then to
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write a register, first we have to ensure that the context contains
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the other regs of the group, and then we copy the info in and set
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out bit. */
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#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
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static const int mappings[] =
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{
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1999-07-08 04:19:36 +08:00
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context_offset (Eax),
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context_offset (Ecx),
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context_offset (Edx),
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context_offset (Ebx),
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context_offset (Esp),
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context_offset (Ebp),
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context_offset (Esi),
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context_offset (Edi),
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context_offset (Eip),
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context_offset (EFlags),
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context_offset (SegCs),
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context_offset (SegSs),
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context_offset (SegDs),
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context_offset (SegEs),
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context_offset (SegFs),
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context_offset (SegGs),
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context_offset (FloatSave.RegisterArea[0 * 10]),
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context_offset (FloatSave.RegisterArea[1 * 10]),
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context_offset (FloatSave.RegisterArea[2 * 10]),
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context_offset (FloatSave.RegisterArea[3 * 10]),
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context_offset (FloatSave.RegisterArea[4 * 10]),
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context_offset (FloatSave.RegisterArea[5 * 10]),
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context_offset (FloatSave.RegisterArea[6 * 10]),
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context_offset (FloatSave.RegisterArea[7 * 10]),
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1999-12-07 11:56:43 +08:00
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context_offset (FloatSave.ControlWord),
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context_offset (FloatSave.StatusWord),
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context_offset (FloatSave.TagWord),
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context_offset (FloatSave.ErrorSelector),
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context_offset (FloatSave.ErrorOffset),
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context_offset (FloatSave.DataSelector),
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context_offset (FloatSave.DataOffset),
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1999-12-23 05:45:38 +08:00
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context_offset (FloatSave.ErrorSelector)
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1999-04-16 09:35:26 +08:00
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};
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1999-12-23 05:45:38 +08:00
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#undef context_offset
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1999-04-16 09:35:26 +08:00
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/* This vector maps the target's idea of an exception (extracted
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from the DEBUG_EVENT structure) to GDB's idea. */
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struct xlate_exception
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{
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int them;
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enum target_signal us;
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};
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static const struct xlate_exception
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xlate[] =
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{
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{EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV},
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{STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV},
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{EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP},
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{DBG_CONTROL_C, TARGET_SIGNAL_INT},
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{EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP},
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{-1, -1}};
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/* Find a thread record given a thread id.
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If get_context then also retrieve the context for this
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thread. */
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static thread_info *
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thread_rec (DWORD id, int get_context)
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{
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thread_info *th;
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1999-07-08 04:19:36 +08:00
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for (th = &thread_head; (th = th->next) != NULL;)
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1999-04-16 09:35:26 +08:00
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if (th->id == id)
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{
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if (!th->suspend_count && get_context)
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{
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if (get_context > 0)
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th->suspend_count = SuspendThread (th->h) + 1;
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else if (get_context < 0)
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th->suspend_count = -1;
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th->context.ContextFlags = CONTEXT_DEBUGGER;
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GetThreadContext (th->h, &th->context);
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}
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return th;
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}
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return NULL;
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}
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/* Add a thread to the thread list */
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static thread_info *
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1999-07-08 04:19:36 +08:00
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child_add_thread (DWORD id, HANDLE h)
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1999-04-16 09:35:26 +08:00
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{
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thread_info *th;
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if ((th = thread_rec (id, FALSE)))
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return th;
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th = (thread_info *) xmalloc (sizeof (*th));
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1999-07-08 04:19:36 +08:00
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memset (th, 0, sizeof (*th));
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1999-04-16 09:35:26 +08:00
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th->id = id;
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th->h = h;
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th->next = thread_head.next;
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thread_head.next = th;
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add_thread (id);
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return th;
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}
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/* Clear out any old thread list and reintialize it to a
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pristine state. */
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static void
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child_init_thread_list ()
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{
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thread_info *th = &thread_head;
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DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
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init_thread_list ();
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while (th->next != NULL)
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{
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thread_info *here = th->next;
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th->next = here->next;
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(void) CloseHandle (here->h);
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free (here);
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}
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}
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/* Delete a thread from the list of threads */
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static void
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child_delete_thread (DWORD id)
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{
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thread_info *th;
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if (info_verbose)
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printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (id));
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delete_thread (id);
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for (th = &thread_head;
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th->next != NULL && th->next->id != id;
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th = th->next)
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continue;
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if (th->next != NULL)
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{
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thread_info *here = th->next;
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th->next = here->next;
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CloseHandle (here->h);
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free (here);
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}
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}
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static void
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check (BOOL ok, const char *file, int line)
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{
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if (!ok)
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printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
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}
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static void
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do_child_fetch_inferior_registers (int r)
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{
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1999-12-07 11:56:43 +08:00
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char *context_offset = ((char *) ¤t_thread->context) + mappings[r];
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long l;
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if (r == FCS_REGNUM)
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{
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l = *((long *)context_offset) & 0xffff;
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supply_register (r, (char *) &l);
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}
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else if (r == FOP_REGNUM)
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{
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l = (*((long *)context_offset) >> 16) & ((1 << 11) - 1);
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supply_register (r, (char *) &l);
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}
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else if (r >= 0)
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1999-12-23 05:45:38 +08:00
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supply_register (r, context_offset);
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1999-04-16 09:35:26 +08:00
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else
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{
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for (r = 0; r < NUM_REGS; r++)
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do_child_fetch_inferior_registers (r);
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}
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}
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static void
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child_fetch_inferior_registers (int r)
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{
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current_thread = thread_rec (inferior_pid, TRUE);
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do_child_fetch_inferior_registers (r);
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}
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static void
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do_child_store_inferior_registers (int r)
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{
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if (r >= 0)
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read_register_gen (r, ((char *) ¤t_thread->context) + mappings[r]);
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else
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{
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for (r = 0; r < NUM_REGS; r++)
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do_child_store_inferior_registers (r);
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}
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}
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/* Store a new register value into the current thread context */
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static void
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child_store_inferior_registers (int r)
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{
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current_thread = thread_rec (inferior_pid, TRUE);
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do_child_store_inferior_registers (r);
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}
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|
1999-12-07 11:56:43 +08:00
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#include <psapi.h>
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static int psapi_loaded = 0;
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static HMODULE psapi_module_handle = NULL;
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static BOOL WINAPI (*psapi_EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD)= NULL;
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static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD)= NULL;
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static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD)= NULL;
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|
int psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
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|
|
{
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|
DWORD len;
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|
MODULEINFO mi;
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int i;
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HMODULE dh_buf [ 1 ];
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HMODULE* DllHandle = dh_buf;
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DWORD cbNeeded;
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BOOL ok;
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|
|
|
|
|
if (!psapi_loaded ||
|
|
|
|
psapi_EnumProcessModules == NULL ||
|
|
|
|
psapi_GetModuleInformation == NULL ||
|
|
|
|
psapi_GetModuleFileNameExA == NULL)
|
|
|
|
{
|
|
|
|
if (psapi_loaded)goto failed;
|
|
|
|
psapi_loaded = 1;
|
|
|
|
psapi_module_handle = LoadLibrary ("psapi.dll");
|
|
|
|
if (!psapi_module_handle)
|
|
|
|
{
|
|
|
|
/* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ());*/
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules" );
|
|
|
|
psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
|
|
|
|
psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
|
|
|
|
"GetModuleFileNameExA");
|
|
|
|
if (psapi_EnumProcessModules == NULL ||
|
|
|
|
psapi_GetModuleInformation == NULL ||
|
|
|
|
psapi_GetModuleFileNameExA == NULL)
|
|
|
|
goto failed;
|
|
|
|
}
|
|
|
|
|
|
|
|
cbNeeded = 0;
|
|
|
|
ok = (*psapi_EnumProcessModules) (current_process_handle,
|
|
|
|
DllHandle,
|
|
|
|
sizeof (HMODULE),
|
|
|
|
&cbNeeded);
|
|
|
|
|
|
|
|
if (!ok || !cbNeeded)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
DllHandle = (HMODULE*) alloca (cbNeeded);
|
|
|
|
if (!DllHandle)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
ok = (*psapi_EnumProcessModules) (current_process_handle,
|
|
|
|
DllHandle,
|
|
|
|
cbNeeded,
|
|
|
|
&cbNeeded);
|
|
|
|
if (!ok)
|
|
|
|
goto failed;
|
|
|
|
|
|
|
|
for (i = 0; i < cbNeeded / sizeof (HMODULE); i++)
|
|
|
|
{
|
|
|
|
if (!(*psapi_GetModuleInformation) (current_process_handle,
|
|
|
|
DllHandle [i],
|
|
|
|
&mi,
|
|
|
|
sizeof (mi)))
|
|
|
|
error ("Can't get module info");
|
|
|
|
|
|
|
|
len = (*psapi_GetModuleFileNameExA) (current_process_handle,
|
|
|
|
DllHandle [i],
|
|
|
|
dll_name_ret,
|
|
|
|
MAX_PATH);
|
|
|
|
if (len == 0)
|
|
|
|
error ("Error getting dll name: %u\n", GetLastError ());
|
|
|
|
|
|
|
|
if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
failed:
|
|
|
|
dll_name_ret[0] = '\0';
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
/* Wait for child to do something. Return pid of child, or -1 in case
|
|
|
|
of error; store status through argument pointer OURSTATUS. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
handle_load_dll (PTR dummy)
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
|
1999-04-16 09:35:26 +08:00
|
|
|
DWORD dll_name_ptr;
|
|
|
|
DWORD done;
|
|
|
|
char dll_buf[MAX_PATH + 1];
|
1999-08-17 03:57:19 +08:00
|
|
|
char *p, *dll_name = NULL;
|
1999-04-16 09:35:26 +08:00
|
|
|
struct objfile *objfile;
|
|
|
|
MEMORY_BASIC_INFORMATION minfo;
|
1999-10-06 07:13:56 +08:00
|
|
|
struct section_addr_info section_addrs;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-10-06 07:13:56 +08:00
|
|
|
memset (§ion_addrs, 0, sizeof (section_addrs));
|
1999-07-08 04:19:36 +08:00
|
|
|
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
|
|
|
|
dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0';
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
dll_name = dll_buf;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
/* Attempt to read the name of the dll that was detected.
|
|
|
|
This is documented to work only when actively debugging
|
|
|
|
a program. It will not work for attached processes. */
|
|
|
|
if (dll_name == NULL || *dll_name == '\0')
|
|
|
|
{
|
|
|
|
int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
|
|
|
|
int len = 0;
|
|
|
|
char b[2];
|
|
|
|
|
|
|
|
ReadProcessMemory (current_process_handle,
|
|
|
|
(LPCVOID) event->lpImageName,
|
|
|
|
(char *) &dll_name_ptr,
|
|
|
|
sizeof (dll_name_ptr), &done);
|
|
|
|
|
|
|
|
/* See if we could read the address of a string, and that the
|
1999-07-08 04:19:36 +08:00
|
|
|
address isn't null. */
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
if (done != sizeof (dll_name_ptr) || !dll_name_ptr)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
do
|
|
|
|
{
|
|
|
|
ReadProcessMemory (current_process_handle,
|
|
|
|
(LPCVOID) (dll_name_ptr + len * size),
|
|
|
|
&b,
|
|
|
|
size,
|
|
|
|
&done);
|
|
|
|
len++;
|
|
|
|
}
|
|
|
|
while ((b[0] != 0 || b[size - 1] != 0) && done == size);
|
|
|
|
|
|
|
|
dll_name = alloca (len);
|
|
|
|
|
|
|
|
if (event->fUnicode)
|
|
|
|
{
|
|
|
|
WCHAR *unicode_dll_name = (WCHAR *) alloca (len * sizeof (WCHAR));
|
|
|
|
ReadProcessMemory (current_process_handle,
|
|
|
|
(LPCVOID) dll_name_ptr,
|
|
|
|
unicode_dll_name,
|
|
|
|
len * sizeof (WCHAR),
|
|
|
|
&done);
|
|
|
|
|
|
|
|
WideCharToMultiByte (CP_ACP, 0,
|
|
|
|
unicode_dll_name, len,
|
|
|
|
dll_name, len, 0, 0);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
ReadProcessMemory (current_process_handle,
|
|
|
|
(LPCVOID) dll_name_ptr,
|
|
|
|
dll_name,
|
|
|
|
len,
|
|
|
|
&done);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!dll_name)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
while ((p = strchr (dll_name, '\\')))
|
|
|
|
*p = '/';
|
|
|
|
|
|
|
|
/* The symbols in a dll are offset by 0x1000, which is the
|
|
|
|
the offset from 0 of the first byte in an image - because
|
|
|
|
of the file header and the section alignment.
|
|
|
|
|
|
|
|
FIXME: Is this the real reason that we need the 0x1000 ? */
|
|
|
|
|
|
|
|
printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name);
|
1999-10-06 07:13:56 +08:00
|
|
|
section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000;
|
1999-10-12 12:37:53 +08:00
|
|
|
symbol_file_add (dll_name, 0, §ion_addrs, 0, OBJF_SHARED);
|
1999-04-16 09:35:26 +08:00
|
|
|
printf_unfiltered ("\n");
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle DEBUG_STRING output from child process.
|
|
|
|
Cygwin prepends its messages with a "cygwin:". Interpret this as
|
|
|
|
a Cygwin signal. Otherwise just print the string as a warning. */
|
|
|
|
static int
|
|
|
|
handle_output_debug_string (struct target_waitstatus *ourstatus)
|
|
|
|
{
|
|
|
|
char *s;
|
|
|
|
int gotasig = FALSE;
|
|
|
|
|
|
|
|
if (!target_read_string
|
1999-07-08 04:19:36 +08:00
|
|
|
((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0)
|
1999-04-16 09:35:26 +08:00
|
|
|
|| !s || !*s)
|
|
|
|
return gotasig;
|
|
|
|
|
1999-12-23 05:45:38 +08:00
|
|
|
if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
1999-12-23 05:45:38 +08:00
|
|
|
if (strncmp (s, "cYg", 3) != 0)
|
1999-12-07 11:56:43 +08:00
|
|
|
warning (s);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
1999-12-23 05:45:38 +08:00
|
|
|
else
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
|
|
|
char *p;
|
1999-12-07 11:56:43 +08:00
|
|
|
int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
|
|
|
|
gotasig = target_signal_from_host (sig);
|
1999-04-27 02:34:20 +08:00
|
|
|
ourstatus->value.sig = gotasig;
|
|
|
|
if (gotasig)
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
|
|
|
}
|
|
|
|
|
|
|
|
free (s);
|
|
|
|
return gotasig;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
handle_exception (struct target_waitstatus *ourstatus)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
int done = 0;
|
|
|
|
thread_info *th;
|
|
|
|
|
|
|
|
ourstatus->kind = TARGET_WAITKIND_STOPPED;
|
|
|
|
|
|
|
|
/* Record the context of the current thread */
|
|
|
|
th = thread_rec (current_event.dwThreadId, -1);
|
|
|
|
|
|
|
|
switch (current_event.u.Exception.ExceptionRecord.ExceptionCode)
|
|
|
|
{
|
|
|
|
case EXCEPTION_ACCESS_VIOLATION:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
1999-04-16 09:35:26 +08:00
|
|
|
break;
|
2000-01-11 11:07:37 +08:00
|
|
|
case STATUS_FLOAT_UNDERFLOW:
|
|
|
|
case STATUS_FLOAT_DIVIDE_BY_ZERO:
|
|
|
|
case STATUS_FLOAT_OVERFLOW:
|
|
|
|
case STATUS_INTEGER_DIVIDE_BY_ZERO:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
|
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_FPE;
|
|
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
|
|
|
break;
|
1999-04-16 09:35:26 +08:00
|
|
|
case STATUS_STACK_OVERFLOW:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
1999-04-16 09:35:26 +08:00
|
|
|
break;
|
|
|
|
case EXCEPTION_BREAKPOINT:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
|
|
|
break;
|
|
|
|
case DBG_CONTROL_C:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_INT;
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
1999-04-16 09:35:26 +08:00
|
|
|
break;
|
|
|
|
case EXCEPTION_SINGLE_STEP:
|
|
|
|
DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress));
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
/* This may be a structured exception handling exception. In
|
1999-07-08 04:19:36 +08:00
|
|
|
that case, we want to let the program try to handle it, and
|
1999-12-23 05:45:38 +08:00
|
|
|
only break if we see the exception a second time.
|
1999-04-16 09:35:26 +08:00
|
|
|
if (current_event.u.Exception.dwFirstChance)
|
1999-12-23 05:45:38 +08:00
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
return 0;
|
1999-12-23 05:45:38 +08:00
|
|
|
*/
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
|
1999-07-08 04:19:36 +08:00
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionCode,
|
|
|
|
current_event.u.Exception.ExceptionRecord.ExceptionAddress);
|
1999-04-16 09:35:26 +08:00
|
|
|
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_EXCEPTION_NOT_HANDLED;
|
1999-04-16 09:35:26 +08:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
exception_count++;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Resume all artificially suspended threads if we are continuing
|
|
|
|
execution */
|
|
|
|
static BOOL
|
1999-12-07 11:56:43 +08:00
|
|
|
child_continue (int id)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
|
|
|
int i;
|
|
|
|
thread_info *th;
|
|
|
|
BOOL res;
|
|
|
|
|
|
|
|
DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
|
|
|
|
current_event.dwProcessId, current_event.dwThreadId));
|
1999-04-27 02:34:20 +08:00
|
|
|
res = ContinueDebugEvent (current_event.dwProcessId,
|
|
|
|
current_event.dwThreadId,
|
|
|
|
continue_status);
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = 0;
|
1999-04-27 02:34:20 +08:00
|
|
|
if (res)
|
1999-07-08 04:19:36 +08:00
|
|
|
for (th = &thread_head; (th = th->next) != NULL;)
|
1999-04-16 09:35:26 +08:00
|
|
|
if (((id == -1) || (id == th->id)) && th->suspend_count)
|
|
|
|
{
|
|
|
|
for (i = 0; i < th->suspend_count; i++)
|
|
|
|
(void) ResumeThread (th->h);
|
|
|
|
th->suspend_count = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return res;
|
|
|
|
}
|
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
static int
|
|
|
|
get_child_debug_event (int pid, struct target_waitstatus *ourstatus,
|
|
|
|
DWORD *event_code, int *retval)
|
|
|
|
{
|
|
|
|
BOOL debug_event;
|
|
|
|
int breakout = 1;
|
|
|
|
|
|
|
|
if (!(debug_event = WaitForDebugEvent (¤t_event, 20)))
|
|
|
|
{
|
|
|
|
breakout = *retval = *event_code = 0;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
event_count++;
|
|
|
|
continue_status = DBG_CONTINUE;
|
|
|
|
*retval = 0;
|
|
|
|
|
|
|
|
switch (*event_code = current_event.dwDebugEventCode)
|
|
|
|
{
|
|
|
|
case CREATE_THREAD_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"CREATE_THREAD_DEBUG_EVENT"));
|
|
|
|
/* Record the existence of this thread */
|
|
|
|
child_add_thread (current_event.dwThreadId,
|
|
|
|
current_event.u.CreateThread.hThread);
|
|
|
|
if (info_verbose)
|
|
|
|
printf_unfiltered ("[New %s]\n",
|
|
|
|
target_pid_to_str (current_event.dwThreadId));
|
|
|
|
break;
|
|
|
|
|
|
|
|
case EXIT_THREAD_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"EXIT_THREAD_DEBUG_EVENT"));
|
|
|
|
child_delete_thread (current_event.dwThreadId);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case CREATE_PROCESS_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"CREATE_PROCESS_DEBUG_EVENT"));
|
|
|
|
current_process_handle = current_event.u.CreateProcessInfo.hProcess;
|
|
|
|
|
|
|
|
main_thread_id = inferior_pid = current_event.dwThreadId;
|
|
|
|
/* Add the main thread */
|
|
|
|
current_thread = child_add_thread (inferior_pid,
|
|
|
|
current_event.u.CreateProcessInfo.hThread);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case EXIT_PROCESS_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"EXIT_PROCESS_DEBUG_EVENT"));
|
|
|
|
ourstatus->kind = TARGET_WAITKIND_EXITED;
|
|
|
|
ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
|
|
|
|
CloseHandle (current_process_handle);
|
|
|
|
*retval = current_event.dwProcessId;
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
case LOAD_DLL_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"LOAD_DLL_DEBUG_EVENT"));
|
|
|
|
catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL);
|
|
|
|
registers_changed (); /* mark all regs invalid */
|
|
|
|
break;
|
|
|
|
|
|
|
|
case UNLOAD_DLL_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"UNLOAD_DLL_DEBUG_EVENT"));
|
|
|
|
break; /* FIXME: don't know what to do here */
|
|
|
|
|
|
|
|
case EXCEPTION_DEBUG_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"EXCEPTION_DEBUG_EVENT"));
|
|
|
|
if (handle_exception (ourstatus)) /* sets continue_status */
|
|
|
|
{
|
|
|
|
*retval = current_event.dwThreadId;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
|
|
|
|
case OUTPUT_DEBUG_STRING_EVENT:
|
|
|
|
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
|
|
|
|
(unsigned) current_event.dwProcessId,
|
|
|
|
(unsigned) current_event.dwThreadId,
|
|
|
|
"OUTPUT_DEBUG_STRING_EVENT"));
|
|
|
|
if (handle_output_debug_string (ourstatus))
|
|
|
|
{
|
|
|
|
*retval = main_thread_id;
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
|
|
|
|
current_event.dwProcessId,
|
|
|
|
current_event.dwThreadId);
|
|
|
|
printf_unfiltered (" unknown event code %d\n",
|
|
|
|
current_event.dwDebugEventCode);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
breakout = 0;
|
|
|
|
CHECK (child_continue (-1));
|
|
|
|
continue_status = 0;
|
|
|
|
|
|
|
|
out:
|
|
|
|
return breakout;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Wait for interesting events to occur in the target process. */
|
1999-04-16 09:35:26 +08:00
|
|
|
static int
|
|
|
|
child_wait (int pid, struct target_waitstatus *ourstatus)
|
|
|
|
{
|
1999-12-07 11:56:43 +08:00
|
|
|
DWORD event_code;
|
|
|
|
int retval;
|
|
|
|
|
1999-04-16 09:35:26 +08:00
|
|
|
/* We loop when we get a non-standard exception rather than return
|
|
|
|
with a SPURIOUS because resume can try and step or modify things,
|
|
|
|
which needs a current_thread->h. But some of these exceptions mark
|
|
|
|
the birth or death of threads, which mean that the current thread
|
|
|
|
isn't necessarily what you think it is. */
|
|
|
|
|
|
|
|
while (1)
|
|
|
|
{
|
1999-12-07 11:56:43 +08:00
|
|
|
if (continue_status != 0)
|
|
|
|
CHECK (child_continue (-1));
|
|
|
|
if (get_child_debug_event (pid, ourstatus, &event_code, &retval))
|
|
|
|
return retval;
|
1999-04-27 02:34:20 +08:00
|
|
|
else
|
|
|
|
{
|
|
|
|
int detach = 0;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-04-27 02:34:20 +08:00
|
|
|
if (ui_loop_hook != NULL)
|
|
|
|
detach = ui_loop_hook (0);
|
|
|
|
|
|
|
|
if (detach)
|
|
|
|
child_kill_inferior ();
|
|
|
|
}
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Attach to process PID, then initialize for debugging it. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_attach (args, from_tty)
|
|
|
|
char *args;
|
|
|
|
int from_tty;
|
|
|
|
{
|
|
|
|
BOOL ok;
|
|
|
|
|
|
|
|
if (!args)
|
|
|
|
error_no_arg ("process-id to attach");
|
|
|
|
|
|
|
|
current_event.dwProcessId = strtoul (args, 0, 0);
|
|
|
|
|
|
|
|
ok = DebugActiveProcess (current_event.dwProcessId);
|
|
|
|
|
|
|
|
if (!ok)
|
|
|
|
error ("Can't attach to process.");
|
|
|
|
|
|
|
|
exception_count = 0;
|
|
|
|
event_count = 0;
|
|
|
|
|
|
|
|
if (from_tty)
|
|
|
|
{
|
|
|
|
char *exec_file = (char *) get_exec_file (0);
|
|
|
|
|
|
|
|
if (exec_file)
|
|
|
|
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
|
|
|
|
target_pid_to_str (current_event.dwProcessId));
|
|
|
|
else
|
|
|
|
printf_unfiltered ("Attaching to %s\n",
|
|
|
|
target_pid_to_str (current_event.dwProcessId));
|
|
|
|
|
|
|
|
gdb_flush (gdb_stdout);
|
|
|
|
}
|
|
|
|
|
|
|
|
push_target (&child_ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_detach (args, from_tty)
|
|
|
|
char *args;
|
|
|
|
int from_tty;
|
|
|
|
{
|
|
|
|
if (from_tty)
|
|
|
|
{
|
|
|
|
char *exec_file = get_exec_file (0);
|
|
|
|
if (exec_file == 0)
|
|
|
|
exec_file = "";
|
|
|
|
printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
|
|
|
|
target_pid_to_str (inferior_pid));
|
|
|
|
gdb_flush (gdb_stdout);
|
|
|
|
}
|
|
|
|
inferior_pid = 0;
|
|
|
|
unpush_target (&child_ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Print status information about what we're accessing. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_files_info (ignore)
|
|
|
|
struct target_ops *ignore;
|
|
|
|
{
|
|
|
|
printf_unfiltered ("\tUsing the running image of %s %s.\n",
|
|
|
|
attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
|
|
|
|
}
|
|
|
|
|
|
|
|
/* ARGSUSED */
|
|
|
|
static void
|
|
|
|
child_open (arg, from_tty)
|
|
|
|
char *arg;
|
|
|
|
int from_tty;
|
|
|
|
{
|
|
|
|
error ("Use the \"run\" command to start a Unix child process.");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Start an inferior win32 child process and sets inferior_pid to its pid.
|
|
|
|
EXEC_FILE is the file to run.
|
|
|
|
ALLARGS is a string containing the arguments to the program.
|
|
|
|
ENV is the environment vector to pass. Errors reported with error(). */
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_create_inferior (exec_file, allargs, env)
|
|
|
|
char *exec_file;
|
|
|
|
char *allargs;
|
|
|
|
char **env;
|
|
|
|
{
|
|
|
|
char real_path[MAXPATHLEN];
|
|
|
|
char *winenv;
|
|
|
|
char *temp;
|
1999-07-08 04:19:36 +08:00
|
|
|
int envlen;
|
1999-04-16 09:35:26 +08:00
|
|
|
int i;
|
|
|
|
STARTUPINFO si;
|
|
|
|
PROCESS_INFORMATION pi;
|
|
|
|
struct target_waitstatus dummy;
|
|
|
|
BOOL ret;
|
|
|
|
DWORD flags;
|
|
|
|
char *args;
|
1999-12-07 11:56:43 +08:00
|
|
|
DWORD event_code;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
if (!exec_file)
|
|
|
|
{
|
|
|
|
error ("No executable specified, use `target exec'.\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
memset (&si, 0, sizeof (si));
|
|
|
|
si.cb = sizeof (si);
|
|
|
|
|
|
|
|
cygwin32_conv_to_win32_path (exec_file, real_path);
|
|
|
|
|
|
|
|
flags = DEBUG_ONLY_THIS_PROCESS;
|
|
|
|
|
|
|
|
if (new_group)
|
|
|
|
flags |= CREATE_NEW_PROCESS_GROUP;
|
|
|
|
|
|
|
|
if (new_console)
|
|
|
|
flags |= CREATE_NEW_CONSOLE;
|
|
|
|
|
|
|
|
args = alloca (strlen (real_path) + strlen (allargs) + 2);
|
|
|
|
|
|
|
|
strcpy (args, real_path);
|
|
|
|
|
|
|
|
strcat (args, " ");
|
|
|
|
strcat (args, allargs);
|
|
|
|
|
|
|
|
/* Prepare the environment vars for CreateProcess. */
|
|
|
|
{
|
|
|
|
/* This code use to assume all env vars were file names and would
|
|
|
|
translate them all to win32 style. That obviously doesn't work in the
|
|
|
|
general case. The current rule is that we only translate PATH.
|
|
|
|
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
|
|
|
|
in both posix and win32 environments. cygwin.dll will change it back
|
|
|
|
to posix style if necessary. */
|
|
|
|
|
|
|
|
static const char *conv_path_names[] =
|
1999-07-08 04:19:36 +08:00
|
|
|
{
|
|
|
|
"PATH=",
|
|
|
|
0
|
|
|
|
};
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
/* CreateProcess takes the environment list as a null terminated set of
|
|
|
|
strings (i.e. two nulls terminate the list). */
|
|
|
|
|
|
|
|
/* Get total size for env strings. */
|
|
|
|
for (envlen = 0, i = 0; env[i] && *env[i]; i++)
|
|
|
|
{
|
|
|
|
int j, len;
|
|
|
|
|
|
|
|
for (j = 0; conv_path_names[j]; j++)
|
|
|
|
{
|
|
|
|
len = strlen (conv_path_names[j]);
|
|
|
|
if (strncmp (conv_path_names[j], env[i], len) == 0)
|
|
|
|
{
|
|
|
|
if (cygwin32_posix_path_list_p (env[i] + len))
|
|
|
|
envlen += len
|
|
|
|
+ cygwin32_posix_to_win32_path_list_buf_size (env[i] + len);
|
|
|
|
else
|
|
|
|
envlen += strlen (env[i]) + 1;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (conv_path_names[j] == NULL)
|
|
|
|
envlen += strlen (env[i]) + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
winenv = alloca (envlen + 1);
|
|
|
|
|
|
|
|
/* Copy env strings into new buffer. */
|
|
|
|
for (temp = winenv, i = 0; env[i] && *env[i]; i++)
|
|
|
|
{
|
|
|
|
int j, len;
|
|
|
|
|
|
|
|
for (j = 0; conv_path_names[j]; j++)
|
|
|
|
{
|
|
|
|
len = strlen (conv_path_names[j]);
|
|
|
|
if (strncmp (conv_path_names[j], env[i], len) == 0)
|
|
|
|
{
|
|
|
|
if (cygwin32_posix_path_list_p (env[i] + len))
|
|
|
|
{
|
|
|
|
memcpy (temp, env[i], len);
|
|
|
|
cygwin32_posix_to_win32_path_list (env[i] + len, temp + len);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
strcpy (temp, env[i]);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (conv_path_names[j] == NULL)
|
|
|
|
strcpy (temp, env[i]);
|
|
|
|
|
|
|
|
temp += strlen (temp) + 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Final nil string to terminate new env. */
|
|
|
|
*temp = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
ret = CreateProcess (0,
|
1999-07-08 04:19:36 +08:00
|
|
|
args, /* command line */
|
1999-04-16 09:35:26 +08:00
|
|
|
NULL, /* Security */
|
|
|
|
NULL, /* thread */
|
|
|
|
TRUE, /* inherit handles */
|
|
|
|
flags, /* start flags */
|
|
|
|
winenv,
|
|
|
|
NULL, /* current directory */
|
|
|
|
&si,
|
|
|
|
&pi);
|
|
|
|
if (!ret)
|
1999-07-08 04:19:36 +08:00
|
|
|
error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
exception_count = 0;
|
|
|
|
event_count = 0;
|
|
|
|
|
|
|
|
current_process_handle = pi.hProcess;
|
|
|
|
current_event.dwProcessId = pi.dwProcessId;
|
|
|
|
memset (¤t_event, 0, sizeof (current_event));
|
|
|
|
inferior_pid = current_event.dwThreadId = pi.dwThreadId;
|
|
|
|
push_target (&child_ops);
|
|
|
|
child_init_thread_list ();
|
|
|
|
init_wait_for_inferior ();
|
|
|
|
clear_proceed_status ();
|
|
|
|
target_terminal_init ();
|
|
|
|
target_terminal_inferior ();
|
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
/* Run until process and threads are loaded */
|
|
|
|
do
|
|
|
|
get_child_debug_event (inferior_pid, &dummy, &event_code, &ret);
|
|
|
|
while (event_code != EXCEPTION_DEBUG_EVENT);
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-12-23 05:45:38 +08:00
|
|
|
SymSetOptions (SYMOPT_DEFERRED_LOADS);
|
|
|
|
SymInitialize (current_process_handle, NULL, TRUE);
|
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_mourn_inferior ()
|
|
|
|
{
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_CONTINUE;
|
|
|
|
(void) child_continue (-1);
|
1999-04-16 09:35:26 +08:00
|
|
|
unpush_target (&child_ops);
|
|
|
|
generic_mourn_inferior ();
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Send a SIGINT to the process group. This acts just like the user typed a
|
|
|
|
^C on the controlling terminal. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_stop ()
|
|
|
|
{
|
|
|
|
DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
|
1999-12-07 11:56:43 +08:00
|
|
|
CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
|
1999-07-08 04:19:36 +08:00
|
|
|
registers_changed (); /* refresh register state */
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
|
|
|
|
int write, struct target_ops *target)
|
|
|
|
{
|
|
|
|
DWORD done;
|
|
|
|
if (write)
|
|
|
|
{
|
|
|
|
DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n",
|
|
|
|
len, memaddr));
|
|
|
|
WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our,
|
|
|
|
len, &done);
|
|
|
|
FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n",
|
|
|
|
len, memaddr));
|
|
|
|
ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len,
|
|
|
|
&done);
|
|
|
|
}
|
|
|
|
return done;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
child_kill_inferior (void)
|
|
|
|
{
|
|
|
|
CHECK (TerminateProcess (current_process_handle, 0));
|
|
|
|
|
|
|
|
for (;;)
|
|
|
|
{
|
1999-12-07 11:56:43 +08:00
|
|
|
continue_status = DBG_CONTINUE;
|
|
|
|
if (!child_continue (-1))
|
1999-04-16 09:35:26 +08:00
|
|
|
break;
|
|
|
|
if (!WaitForDebugEvent (¤t_event, INFINITE))
|
|
|
|
break;
|
|
|
|
if (current_event.dwDebugEventCode == EXIT_PROCESS_DEBUG_EVENT)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
CHECK (CloseHandle (current_process_handle));
|
|
|
|
|
|
|
|
/* this may fail in an attached process so don't check. */
|
|
|
|
(void) CloseHandle (current_thread->h);
|
1999-07-08 04:19:36 +08:00
|
|
|
target_mourn_inferior (); /* or just child_mourn_inferior? */
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
child_resume (int pid, int step, enum target_signal sig)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
thread_info *th;
|
|
|
|
|
|
|
|
DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
|
|
|
|
pid, step, sig));
|
|
|
|
|
|
|
|
/* Get context for currently selected thread */
|
|
|
|
th = thread_rec (current_event.dwThreadId, FALSE);
|
|
|
|
if (step)
|
|
|
|
{
|
|
|
|
#ifdef i386
|
|
|
|
/* Single step by setting t bit */
|
|
|
|
child_fetch_inferior_registers (PS_REGNUM);
|
|
|
|
th->context.EFlags |= FLAG_TRACE_BIT;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
if (th->context.ContextFlags)
|
|
|
|
{
|
|
|
|
CHECK (SetThreadContext (th->h, &th->context));
|
|
|
|
th->context.ContextFlags = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Allow continuing with the same signal that interrupted us.
|
|
|
|
Otherwise complain. */
|
|
|
|
|
1999-12-07 11:56:43 +08:00
|
|
|
child_continue (pid);
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_prepare_to_store ()
|
|
|
|
{
|
|
|
|
/* Do nothing, since we can store individual regs */
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
child_can_run ()
|
|
|
|
{
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
child_close ()
|
|
|
|
{
|
|
|
|
DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid));
|
|
|
|
}
|
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
struct target_ops child_ops;
|
1999-04-16 09:35:26 +08:00
|
|
|
|
1999-07-08 04:19:36 +08:00
|
|
|
static void
|
|
|
|
init_child_ops (void)
|
1999-04-16 09:35:26 +08:00
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
child_ops.to_shortname = "child";
|
|
|
|
child_ops.to_longname = "Win32 child process";
|
|
|
|
child_ops.to_doc = "Win32 child process (started by the \"run\" command).";
|
|
|
|
child_ops.to_open = child_open;
|
|
|
|
child_ops.to_close = child_close;
|
|
|
|
child_ops.to_attach = child_attach;
|
|
|
|
child_ops.to_detach = child_detach;
|
|
|
|
child_ops.to_resume = child_resume;
|
|
|
|
child_ops.to_wait = child_wait;
|
|
|
|
child_ops.to_fetch_registers = child_fetch_inferior_registers;
|
|
|
|
child_ops.to_store_registers = child_store_inferior_registers;
|
|
|
|
child_ops.to_prepare_to_store = child_prepare_to_store;
|
|
|
|
child_ops.to_xfer_memory = child_xfer_memory;
|
|
|
|
child_ops.to_files_info = child_files_info;
|
|
|
|
child_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
|
|
|
child_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
|
|
|
child_ops.to_terminal_init = terminal_init_inferior;
|
|
|
|
child_ops.to_terminal_inferior = terminal_inferior;
|
|
|
|
child_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
|
|
|
child_ops.to_terminal_ours = terminal_ours;
|
|
|
|
child_ops.to_terminal_info = child_terminal_info;
|
|
|
|
child_ops.to_kill = child_kill_inferior;
|
|
|
|
child_ops.to_load = 0;
|
|
|
|
child_ops.to_lookup_symbol = 0;
|
|
|
|
child_ops.to_create_inferior = child_create_inferior;
|
|
|
|
child_ops.to_mourn_inferior = child_mourn_inferior;
|
|
|
|
child_ops.to_can_run = child_can_run;
|
|
|
|
child_ops.to_notice_signals = 0;
|
|
|
|
child_ops.to_thread_alive = win32_child_thread_alive;
|
1999-12-23 05:45:38 +08:00
|
|
|
child_ops.to_pid_to_str = cygwin_pid_to_str;
|
1999-07-08 04:19:36 +08:00
|
|
|
child_ops.to_stop = child_stop;
|
|
|
|
child_ops.to_stratum = process_stratum;
|
|
|
|
child_ops.DONT_USE = 0;
|
|
|
|
child_ops.to_has_all_memory = 1;
|
|
|
|
child_ops.to_has_memory = 1;
|
|
|
|
child_ops.to_has_stack = 1;
|
|
|
|
child_ops.to_has_registers = 1;
|
|
|
|
child_ops.to_has_execution = 1;
|
|
|
|
child_ops.to_sections = 0;
|
|
|
|
child_ops.to_sections_end = 0;
|
|
|
|
child_ops.to_magic = OPS_MAGIC;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
_initialize_inftarg ()
|
|
|
|
{
|
|
|
|
struct cmd_list_element *c;
|
1999-07-08 04:19:36 +08:00
|
|
|
init_child_ops ();
|
1999-04-16 09:35:26 +08:00
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("new-console", class_support, var_boolean,
|
|
|
|
(char *) &new_console,
|
|
|
|
"Set creation of new console when creating child process.",
|
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("new-group", class_support, var_boolean,
|
|
|
|
(char *) &new_group,
|
|
|
|
"Set creation of new group when creating child process.",
|
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("debugexec", class_support, var_boolean,
|
|
|
|
(char *) &debug_exec,
|
|
|
|
"Set whether to display execution in child process.",
|
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("debugevents", class_support, var_boolean,
|
|
|
|
(char *) &debug_events,
|
|
|
|
"Set whether to display kernel events in child process.",
|
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("debugmemory", class_support, var_boolean,
|
|
|
|
(char *) &debug_memory,
|
|
|
|
"Set whether to display memory accesses in child process.",
|
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_show_from_set
|
|
|
|
(add_set_cmd ("debugexceptions", class_support, var_boolean,
|
|
|
|
(char *) &debug_exceptions,
|
1999-07-08 04:19:36 +08:00
|
|
|
"Set whether to display kernel exceptions in child process.",
|
1999-04-16 09:35:26 +08:00
|
|
|
&setlist),
|
|
|
|
&showlist);
|
|
|
|
|
|
|
|
add_target (&child_ops);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Determine if the thread referenced by "pid" is alive
|
|
|
|
by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0
|
|
|
|
it means that the pid has died. Otherwise it is assumed to be alive. */
|
|
|
|
static int
|
|
|
|
win32_child_thread_alive (int pid)
|
|
|
|
{
|
1999-07-08 04:19:36 +08:00
|
|
|
return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
|
|
|
|
FALSE : TRUE;
|
1999-04-16 09:35:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/* Convert pid to printable format. */
|
|
|
|
char *
|
|
|
|
cygwin_pid_to_str (int pid)
|
|
|
|
{
|
|
|
|
static char buf[80];
|
|
|
|
if (pid == current_event.dwProcessId)
|
|
|
|
sprintf (buf, "process %d", pid);
|
|
|
|
else
|
|
|
|
sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
|
|
|
|
return buf;
|
|
|
|
}
|
1999-12-23 05:45:38 +08:00
|
|
|
|
|
|
|
static LPVOID __stdcall
|
|
|
|
sfta(HANDLE h, DWORD d)
|
1999-12-07 11:56:43 +08:00
|
|
|
{
|
1999-12-23 05:45:38 +08:00
|
|
|
return NULL;
|
1999-12-07 11:56:43 +08:00
|
|
|
}
|
|
|
|
|
1999-12-23 05:45:38 +08:00
|
|
|
static DWORD __stdcall
|
|
|
|
sgmb(HANDLE h, DWORD d)
|
1999-12-07 11:56:43 +08:00
|
|
|
{
|
|
|
|
#if 0
|
1999-12-23 05:45:38 +08:00
|
|
|
return 4;
|
|
|
|
#else
|
|
|
|
return SymGetModuleBase (h, d) ?: 4;
|
1999-12-07 11:56:43 +08:00
|
|
|
#endif
|
1999-12-23 05:45:38 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
child_frame_chain(struct frame_info *f)
|
|
|
|
{
|
|
|
|
STACKFRAME *sf = (STACKFRAME *) f->extra_info;
|
1999-12-07 11:56:43 +08:00
|
|
|
if (!StackWalk (IMAGE_FILE_MACHINE_I386, current_process_handle,
|
1999-12-23 05:45:38 +08:00
|
|
|
current_thread->h, sf, NULL, NULL, SymFunctionTableAccess, sgmb, NULL) ||
|
|
|
|
!sf->AddrReturn.Offset)
|
|
|
|
return 0;
|
|
|
|
return sf->AddrFrame.Offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
CORE_ADDR
|
|
|
|
child_frame_saved_pc(struct frame_info *f)
|
|
|
|
{
|
|
|
|
STACKFRAME *sf = (STACKFRAME *) f->extra_info;
|
|
|
|
return sf->AddrReturn.Offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
child_init_frame(int leaf, struct frame_info *f)
|
|
|
|
{
|
|
|
|
STACKFRAME *sf;
|
|
|
|
|
|
|
|
if (f->next && f->next->extra_info)
|
|
|
|
f->extra_info = f->next->extra_info;
|
|
|
|
else if (f->prev && f->prev->extra_info)
|
|
|
|
f->extra_info = f->prev->extra_info;
|
|
|
|
else
|
|
|
|
{
|
|
|
|
sf = (STACKFRAME *) frame_obstack_alloc (sizeof (*sf));
|
|
|
|
f->extra_info = (struct frame_extra_info *) sf;
|
|
|
|
memset (sf, 0, sizeof(*sf));
|
|
|
|
sf->AddrPC.Offset = f->pc;
|
|
|
|
sf->AddrPC.Mode = AddrModeFlat;
|
|
|
|
sf->AddrStack.Offset = current_thread->context.Esp;
|
|
|
|
sf->AddrStack.Mode = AddrModeFlat;
|
|
|
|
sf->AddrFrame.Offset = f->frame;
|
|
|
|
sf->AddrFrame.Mode = AddrModeFlat;
|
|
|
|
}
|
1999-12-07 11:56:43 +08:00
|
|
|
}
|