/* Target-vector operations for controlling win32 child processes, for GDB.
- Copyright 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
- Contributed by Cygnus Support.
+ Copyright 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Contributed by Cygnus Solutions, A Red Hat Company.
This file is part of GDB.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-*/
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+ */
/* by Steve Chamberlain, sac@cygnus.com */
#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "target.h"
-#include "wait.h"
#include "gdbcore.h"
#include "command.h"
#include <signal.h>
#include "windefs.h"
#else /* other WIN32 compiler */
#include <windows.h>
+#include <imagehlp.h>
#endif
#include "buildsym.h"
static int win32_child_thread_alive PARAMS ((int));
void child_kill_inferior PARAMS ((void));
-static int last_sig = 0; /* Set if a signal was received from the
- debugged process */
-
/* Thread information structure used to track information that is
not available in gdb's thread structure. */
typedef struct thread_info_struct
-{
- struct thread_info_struct *next;
- DWORD id;
- HANDLE h;
- char *name;
- int suspend_count;
- CONTEXT context;
-} thread_info;
+ {
+ struct thread_info_struct *next;
+ DWORD id;
+ HANDLE h;
+ char *name;
+ int suspend_count;
+ CONTEXT context;
+ STACKFRAME sf;
+ } thread_info;
static thread_info thread_head = {NULL};
+/* The saved state for a continue after breaking back to gdb. */
+static DWORD continue_status;
+
/* The process and thread handles for the above context. */
static DEBUG_EVENT current_event; /* The current debug event from
WaitForDebugEvent */
static HANDLE current_process_handle; /* Currently executing process */
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 */
/* Counts of things. */
static int exception_count = 0;
/* User options. */
static int new_console = 0;
-static int new_group = 0;
-static int debug_exec = 0; /* show execution */
-static int debug_events = 0; /* show events from kernel */
-static int debug_memory = 0; /* show target memory accesses */
+static int new_group = 1;
+static int debug_exec = 0; /* show execution */
+static int debug_events = 0; /* show events from kernel */
+static int debug_memory = 0; /* show target memory accesses */
static int debug_exceptions = 0; /* show target exceptions */
/* This vector maps GDB's idea of a register's number into an address
#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
static const int mappings[] =
{
- context_offset(Eax),
- context_offset(Ecx),
- context_offset(Edx),
- context_offset(Ebx),
- context_offset(Esp),
- context_offset(Ebp),
- context_offset(Esi),
- context_offset(Edi),
- context_offset(Eip),
- context_offset(EFlags),
- context_offset(SegCs),
- context_offset(SegSs),
- context_offset(SegDs),
- context_offset(SegEs),
- context_offset(SegFs),
- context_offset(SegGs),
- context_offset(FloatSave.RegisterArea[0 * 10]),
- context_offset(FloatSave.RegisterArea[1 * 10]),
- context_offset(FloatSave.RegisterArea[2 * 10]),
- context_offset(FloatSave.RegisterArea[3 * 10]),
- context_offset(FloatSave.RegisterArea[4 * 10]),
- context_offset(FloatSave.RegisterArea[5 * 10]),
- context_offset(FloatSave.RegisterArea[6 * 10]),
- context_offset(FloatSave.RegisterArea[7 * 10]),
+ context_offset (Eax),
+ context_offset (Ecx),
+ context_offset (Edx),
+ context_offset (Ebx),
+ context_offset (Esp),
+ context_offset (Ebp),
+ context_offset (Esi),
+ context_offset (Edi),
+ context_offset (Eip),
+ context_offset (EFlags),
+ context_offset (SegCs),
+ context_offset (SegSs),
+ context_offset (SegDs),
+ context_offset (SegEs),
+ context_offset (SegFs),
+ context_offset (SegGs),
+ context_offset (FloatSave.RegisterArea[0 * 10]),
+ context_offset (FloatSave.RegisterArea[1 * 10]),
+ context_offset (FloatSave.RegisterArea[2 * 10]),
+ context_offset (FloatSave.RegisterArea[3 * 10]),
+ context_offset (FloatSave.RegisterArea[4 * 10]),
+ context_offset (FloatSave.RegisterArea[5 * 10]),
+ context_offset (FloatSave.RegisterArea[6 * 10]),
+ context_offset (FloatSave.RegisterArea[7 * 10]),
+ context_offset (FloatSave.ControlWord),
+ context_offset (FloatSave.StatusWord),
+ context_offset (FloatSave.TagWord),
+ context_offset (FloatSave.ErrorSelector),
+ context_offset (FloatSave.ErrorOffset),
+ context_offset (FloatSave.DataSelector),
+ context_offset (FloatSave.DataOffset),
+ context_offset (FloatSave.ErrorSelector)
};
+#undef context_offset
+
/* This vector maps the target's idea of an exception (extracted
from the DEBUG_EVENT structure) to GDB's idea. */
{
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->suspend_count && get_context)
/* Add a thread to the thread list */
static thread_info *
-child_add_thread(DWORD id, HANDLE h)
+child_add_thread (DWORD id, HANDLE h)
{
thread_info *th;
return th;
th = (thread_info *) xmalloc (sizeof (*th));
- memset(th, 0, sizeof (*th));
+ memset (th, 0, sizeof (*th));
th->id = id;
th->h = h;
th->next = thread_head.next;
static void
do_child_fetch_inferior_registers (int r)
{
- if (r >= 0)
- supply_register (r, ((char *) ¤t_thread->context) + mappings[r]);
+ char *context_offset = ((char *) ¤t_thread->context) + mappings[r];
+ long l;
+ if (r == FCS_REGNUM)
+ {
+ l = *((long *)context_offset) & 0xffff;
+ supply_register (r, (char *) &l);
+ }
+ else if (r == FOP_REGNUM)
+ {
+ l = (*((long *)context_offset) >> 16) & ((1 << 11) - 1);
+ supply_register (r, (char *) &l);
+ }
+ else if (r >= 0)
+ supply_register (r, context_offset);
else
{
for (r = 0; r < NUM_REGS; r++)
do_child_store_inferior_registers (r);
}
+#include <psapi.h>
+static int psapi_loaded = 0;
+static HMODULE psapi_module_handle = NULL;
+static BOOL WINAPI (*psapi_EnumProcessModules)(HANDLE, HMODULE*, DWORD, LPDWORD)= NULL;
+static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD)= NULL;
+static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD)= NULL;
+
+int psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
+{
+ DWORD len;
+ MODULEINFO mi;
+ int i;
+ HMODULE dh_buf [ 1 ];
+ HMODULE* DllHandle = dh_buf;
+ DWORD cbNeeded;
+ BOOL ok;
+
+ 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;
+}
+
/* 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)
{
- LOAD_DLL_DEBUG_INFO * event = ¤t_event.u.LoadDll;
+ LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
DWORD dll_name_ptr;
DWORD done;
char dll_buf[MAX_PATH + 1];
- char *p, *dll_name = NULL, *dll_basename;
+ char *p, *dll_name = NULL;
struct objfile *objfile;
MEMORY_BASIC_INFORMATION minfo;
+ struct section_addr_info section_addrs;
- dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0';
+ memset (§ion_addrs, 0, sizeof (section_addrs));
+ dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
- /* The following code attempts to find the name of the dll by reading the
- name from the processes memory. Unfortunately it doesn't work right.
- Doing this the "right way" for Windows is very difficult. FIXME */
-#ifdef DOESNT_WORK
- memset (&minfo, 0, sizeof minfo);
- if (VirtualQueryEx (current_process_handle, (LPCVOID) event->lpBaseOfDll,
- &minfo, sizeof(minfo)) && minfo.BaseAddress) {
- DWORD len;
- IMAGE_DOS_HEADER *hmm0 = (IMAGE_DOS_HEADER *) minfo.BaseAddress;
- HMODULE hmm = (HMODULE) (((DWORD) hmm0) + hmm0->e_lfanew);
+ if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
+ dll_buf[0] = dll_buf[sizeof(dll_buf) - 1] = '\0';
- if ((len = GetModuleFileName (hmm, dll_buf, MAX_PATH)))
- {
- dll_name = dll_buf;
- dll_name[len] = '\0';
- }
- }
-#endif
+ dll_name = dll_buf;
/* Attempt to read the name of the dll that was detected.
This is documented to work only when actively debugging
sizeof (dll_name_ptr), &done);
/* See if we could read the address of a string, and that the
- address isn't null. */
+ address isn't null. */
if (done != sizeof (dll_name_ptr) || !dll_name_ptr)
return 1;
while ((p = strchr (dll_name, '\\')))
*p = '/';
- /* FIXME!! It would be nice to define one symbol which pointed to the
- front of the dll if we can't find any symbols. */
-
- if (!(dll_basename = strrchr(dll_name, '/')))
- dll_basename = dll_name;
- else
- dll_basename++;
-
- ALL_OBJFILES(objfile)
- {
- char *objfile_basename;
- objfile_basename = strrchr(objfile->name, '/');
-
- if (objfile_basename &&
- strcmp(dll_basename, objfile_basename + 1) == 0)
- {
- printf_unfiltered ("%x:%s (symbols previously loaded)\n",
- event->lpBaseOfDll, dll_name);
- goto out;
- }
- }
-
/* 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);
- symbol_file_add (dll_name, 0, (int) event->lpBaseOfDll + 0x1000, 0, 0, 0, 0, 1);
+ section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000;
+ symbol_file_add (dll_name, 0, §ion_addrs, 0, OBJF_SHARED);
printf_unfiltered ("\n");
-out:
return 1;
}
int gotasig = FALSE;
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)
return gotasig;
- if (strncmp(s, CYGWIN_SIGNAL_STRING, sizeof(CYGWIN_SIGNAL_STRING) - 1))
+ if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
{
- warning (s);
+ if (strncmp (s, "cYg", 3) != 0)
+ warning (s);
}
else
{
char *p;
- /*last_sig = */strtol(s + sizeof(CYGWIN_SIGNAL_STRING) - 1, &p, 0);
- gotasig = target_signal_from_host (last_sig);
+ int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
+ gotasig = target_signal_from_host (sig);
ourstatus->value.sig = gotasig;
if (gotasig)
ourstatus->kind = TARGET_WAITKIND_STOPPED;
{
case EXCEPTION_ACCESS_VIOLATION:
DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
+ continue_status = DBG_EXCEPTION_NOT_HANDLED;
+ break;
+ 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;
case STATUS_STACK_OVERFLOW:
DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
+ continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
case EXCEPTION_BREAKPOINT:
DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
case DBG_CONTROL_C:
DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_INT;
- /* User typed CTRL-C. Continue with this status */
- last_sig = SIGINT; /* FIXME - should check pass state */
+ continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
case EXCEPTION_SINGLE_STEP:
DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
default:
/* This may be a structured exception handling exception. In
- that case, we want to let the program try to handle it, and
- only break if we see the exception a second time. */
+ that case, we want to let the program try to handle it, and
+ only break if we see the exception a second time.
if (current_event.u.Exception.dwFirstChance)
+
return 0;
+*/
printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionCode,
- current_event.u.Exception.ExceptionRecord.ExceptionAddress);
+ current_event.u.Exception.ExceptionRecord.ExceptionCode,
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress);
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
+ continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
}
exception_count++;
/* Resume all artificially suspended threads if we are continuing
execution */
static BOOL
-child_continue (DWORD continue_status, int id)
+child_continue (int id)
{
int i;
thread_info *th;
res = ContinueDebugEvent (current_event.dwProcessId,
current_event.dwThreadId,
continue_status);
+ continue_status = 0;
if (res)
- for (th = &thread_head; (th = th->next) != NULL; )
+ for (th = &thread_head; (th = th->next) != NULL;)
if (((id == -1) || (id == th->id)) && th->suspend_count)
{
for (i = 0; i < th->suspend_count; i++)
return res;
}
+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. */
static int
child_wait (int pid, struct target_waitstatus *ourstatus)
{
+ DWORD event_code;
+ int retval;
+
/* 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
while (1)
{
- DWORD continue_status;
- BOOL debug_event = WaitForDebugEvent (¤t_event, 20);
- char *p;
- thread_info *th;
- int sig;
-
- if (debug_event)
- {
- event_count++;
-
- continue_status = DBG_CONTINUE;
-
- switch (current_event.dwDebugEventCode)
- {
- case CREATE_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
- current_event.dwProcessId, 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",
- current_event.dwProcessId, 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",
- current_event.dwProcessId, 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",
- current_event.dwProcessId, current_event.dwThreadId,
- "EXIT_PROCESS_DEBUG_EVENT"));
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
- CloseHandle (current_process_handle);
- return current_event.dwProcessId;
- break;
-
- case LOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, 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",
- current_event.dwProcessId, 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",
- current_event.dwProcessId, current_event.dwThreadId,
- "EXCEPTION_DEBUG_EVENT"));
- if (handle_exception (ourstatus))
- return current_event.dwThreadId;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
- break;
-
- case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "OUTPUT_DEBUG_STRING_EVENT"));
- if (handle_output_debug_string (ourstatus))
- return main_thread_id;
- 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;
- }
-
- CHECK (child_continue (continue_status, -1));
- }
+ if (continue_status != 0)
+ CHECK (child_continue (-1));
+ if (get_child_debug_event (pid, ourstatus, &event_code, &retval))
+ return retval;
else
{
int detach = 0;
char real_path[MAXPATHLEN];
char *winenv;
char *temp;
- int envlen;
+ int envlen;
int i;
-
STARTUPINFO si;
PROCESS_INFORMATION pi;
struct target_waitstatus dummy;
BOOL ret;
DWORD flags;
char *args;
+ DWORD event_code;
if (!exec_file)
{
to posix style if necessary. */
static const char *conv_path_names[] =
- {
- "PATH=",
- 0
- };
+ {
+ "PATH=",
+ 0
+ };
/* CreateProcess takes the environment list as a null terminated set of
strings (i.e. two nulls terminate the list). */
}
ret = CreateProcess (0,
- args, /* command line */
+ args, /* command line */
NULL, /* Security */
NULL, /* thread */
TRUE, /* inherit handles */
&si,
&pi);
if (!ret)
- error ("Error creating process %s, (error %d)\n", exec_file, GetLastError());
+ error ("Error creating process %s, (error %d)\n", exec_file, GetLastError ());
exception_count = 0;
event_count = 0;
target_terminal_init ();
target_terminal_inferior ();
- /* Ignore the first trap */
- child_wait (inferior_pid, &dummy);
+ /* Run until process and threads are loaded */
+ do
+ get_child_debug_event (inferior_pid, &dummy, &event_code, &ret);
+ while (event_code != EXCEPTION_DEBUG_EVENT);
+
+ SymSetOptions (SYMOPT_DEFERRED_LOADS);
+ SymInitialize (current_process_handle, NULL, TRUE);
proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
}
static void
child_mourn_inferior ()
{
- (void) child_continue (DBG_CONTINUE, -1);
+ continue_status = DBG_CONTINUE;
+ (void) child_continue (-1);
unpush_target (&child_ops);
generic_mourn_inferior ();
}
child_stop ()
{
DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
- CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, 0));
- registers_changed(); /* refresh register state */
+ CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
+ registers_changed (); /* refresh register state */
}
int
for (;;)
{
- if (!child_continue (DBG_CONTINUE, -1))
+ continue_status = DBG_CONTINUE;
+ if (!child_continue (-1))
break;
if (!WaitForDebugEvent (¤t_event, INFINITE))
break;
/* this may fail in an attached process so don't check. */
(void) CloseHandle (current_thread->h);
- target_mourn_inferior(); /* or just child_mourn_inferior? */
+ target_mourn_inferior (); /* or just child_mourn_inferior? */
}
void
{
int i;
thread_info *th;
- DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
- DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
pid, step, sig));
/* Allow continuing with the same signal that interrupted us.
Otherwise complain. */
- if (sig && sig != last_sig)
- fprintf_unfiltered (gdb_stderr, "Can't send signals to the child. signal %d\n", sig);
- last_sig = 0;
- child_continue (continue_status, pid);
+ child_continue (pid);
}
static void
DEBUG_EVENTS (("gdb: child_close, inferior_pid=%d\n", inferior_pid));
}
-struct target_ops child_ops ;
+struct target_ops child_ops;
-static void
-init_child_ops(void)
+static void
+init_child_ops (void)
{
- 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;
- 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;
+ 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;
+ child_ops.to_pid_to_str = cygwin_pid_to_str;
+ 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;
}
void
_initialize_inftarg ()
{
struct cmd_list_element *c;
- init_child_ops() ;
+ init_child_ops ();
add_show_from_set
(add_set_cmd ("new-console", class_support, var_boolean,
add_show_from_set
(add_set_cmd ("debugexceptions", class_support, var_boolean,
(char *) &debug_exceptions,
- "Set whether to display kernel exceptions in child process.",
+ "Set whether to display kernel exceptions in child process.",
&setlist),
&showlist);
static int
win32_child_thread_alive (int pid)
{
- return WaitForSingleObject(thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
- FALSE : TRUE;
+ return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
+ FALSE : TRUE;
}
/* Convert pid to printable format. */
sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
return buf;
}
+
+static LPVOID __stdcall
+sfta(HANDLE h, DWORD d)
+{
+ return NULL;
+}
+
+static DWORD __stdcall
+sgmb(HANDLE h, DWORD d)
+{
+#if 0
+ return 4;
+#else
+ return SymGetModuleBase (h, d) ?: 4;
+#endif
+}
+
+CORE_ADDR
+child_frame_chain(struct frame_info *f)
+{
+ STACKFRAME *sf = (STACKFRAME *) f->extra_info;
+ if (!StackWalk (IMAGE_FILE_MACHINE_I386, current_process_handle,
+ 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;
+ }
+}
projects / deliverable / binutils-gdb.git / blobdiff