/* Target-vector operations for controlling windows child processes, for GDB.
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
- 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Contributed by Cygnus Solutions, A Red Hat Company.
#include <stdlib.h>
#include <windows.h>
#include <imagehlp.h>
+#include <psapi.h>
#ifdef __CYGWIN__
#include <sys/cygwin.h>
#endif
#include "windows-tdep.h"
#include "windows-nat.h"
+#include "i386-nat.h"
+
+#define AdjustTokenPrivileges dyn_AdjustTokenPrivileges
+#define DebugActiveProcessStop dyn_DebugActiveProcessStop
+#define DebugBreakProcess dyn_DebugBreakProcess
+#define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit
+#define EnumProcessModules dyn_EnumProcessModules
+#define GetModuleFileNameExA dyn_GetModuleFileNameExA
+#define GetModuleInformation dyn_GetModuleInformation
+#define LookupPrivilegeValueA dyn_LookupPrivilegeValueA
+#define OpenProcessToken dyn_OpenProcessToken
+
+static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES,
+ DWORD, PTOKEN_PRIVILEGES, PDWORD);
+static BOOL WINAPI (*DebugActiveProcessStop) (DWORD);
+static BOOL WINAPI (*DebugBreakProcess) (HANDLE);
+static BOOL WINAPI (*DebugSetProcessKillOnExit) (BOOL);
+static BOOL WINAPI (*EnumProcessModules) (HANDLE, HMODULE *, DWORD,
+ LPDWORD);
+static DWORD WINAPI (*GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR,
+ DWORD);
+static BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO,
+ DWORD);
+static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID);
+static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE);
static struct target_ops windows_ops;
CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
};
#endif
-#include <psapi.h>
#ifndef CONTEXT_EXTENDED_REGISTERS
/* This macro is only defined on ia32. It only makes sense on this target,
#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
| CONTEXT_EXTENDED_REGISTERS
-static unsigned dr[8];
+static uintptr_t dr[8];
static int debug_registers_changed;
static int debug_registers_used;
+
+static int windows_initialization_done;
#define DR6_CLEAR_VALUE 0xffff0ff0
/* The string sent by cygwin when it processes a signal.
#define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x
static void windows_stop (ptid_t);
-static int windows_thread_alive (ptid_t);
-static void windows_kill_inferior (void);
+static int windows_thread_alive (struct target_ops *, ptid_t);
+static void windows_kill_inferior (struct target_ops *);
+
+static void cygwin_set_dr (int i, CORE_ADDR addr);
+static void cygwin_set_dr7 (unsigned long val);
+static unsigned long cygwin_get_dr6 (void);
static enum target_signal last_sig = TARGET_SIGNAL_0;
/* Set if a signal was received from the debugged process */
thread_info *th = current_thread;
th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
GetThreadContext (th->h, &th->context);
- /* Copy dr values from that thread.
+ /* Copy dr values from that thread.
But only if there were not modified since last stop. PR gdb/2388 */
if (!debug_registers_changed)
{
}
static void
-windows_fetch_inferior_registers (struct regcache *regcache, int r)
+windows_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int r)
{
current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE);
/* Check if current_thread exists. Windows sometimes uses a non-existent
/* Store a new register value into the current thread context */
static void
-windows_store_inferior_registers (struct regcache *regcache, int r)
+windows_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int r)
{
current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE);
/* Check if current_thread exists. Windows sometimes uses a non-existent
do_windows_store_inferior_registers (regcache, r);
}
-static int psapi_loaded = 0;
-static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD,
- LPDWORD);
-static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO,
- DWORD);
-static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR,
- DWORD);
-
/* Get the name of a given module at at given base address. If base_address
is zero return the first loaded module (which is always the name of the
executable). */
char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */
#endif
- /* If psapi_loaded < 0 either psapi.dll is not available or it does not contain
- the needed functions. */
- if (psapi_loaded <= 0)
- goto failed;
-
cbNeeded = 0;
/* Find size of buffer needed to handle list of modules loaded in inferior */
- if (!psapi_EnumProcessModules (current_process_handle, DllHandle,
- sizeof (HMODULE), &cbNeeded) || !cbNeeded)
+ if (!EnumProcessModules (current_process_handle, DllHandle,
+ sizeof (HMODULE), &cbNeeded) || !cbNeeded)
goto failed;
/* Allocate correct amount of space for module list */
goto failed;
/* Get the list of modules */
- if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded,
+ if (!EnumProcessModules (current_process_handle, DllHandle, cbNeeded,
&cbNeeded))
goto failed;
for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
{
/* Get information on this module */
- if (!psapi_GetModuleInformation (current_process_handle, DllHandle[i],
- &mi, sizeof (mi)))
+ if (!GetModuleInformation (current_process_handle, DllHandle[i],
+ &mi, sizeof (mi)))
error (_("Can't get module info"));
if (!base_address || mi.lpBaseOfDll == base_address)
{
/* Try to find the name of the given module */
- len = psapi_GetModuleFileNameExA (current_process_handle,
- DllHandle[i], pathbuf, MAX_PATH);
+ len = GetModuleFileNameExA (current_process_handle,
+ DllHandle[i], pathbuf, MAX_PATH);
if (len == 0)
error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
#ifdef __CYGWIN__
safe_symbol_file_add_stub (void *argv)
{
#define p ((struct safe_symbol_file_add_args *) argv)
- p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
+ const int add_flags = ((p->from_tty ? SYMFILE_VERBOSE : 0)
+ | (p->mainline ? SYMFILE_MAINLINE : 0));
+ p->ret = symbol_file_add (p->name, add_flags, p->addrs, p->flags);
return !!p->ret;
#undef p
}
solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll);
solib_end = solib_end->next;
- DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %p.\n", solib_end->so_name,
- solib_end->lm_info->load_addr));
+ DEBUG_EVENTS (("gdb: Loading dll \"%s\" at %s.\n", solib_end->so_name,
+ host_address_to_string (solib_end->lm_info->load_addr)));
return 1;
}
return 1;
}
- error (_("Error: dll starting at %p not found."), lpBaseOfDll);
+ error (_("Error: dll starting at %s not found."),
+ host_address_to_string (lpBaseOfDll));
return 0;
}
#define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \
- printf_unfiltered ("gdb: Target exception %s at %p\n", x, \
- current_event.u.Exception.ExceptionRecord.ExceptionAddress)
+ printf_unfiltered ("gdb: Target exception %s at %s\n", x, \
+ host_address_to_string (\
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress))
static int
handle_exception (struct target_waitstatus *ourstatus)
/* Treat unhandled first chance exceptions specially. */
if (current_event.u.Exception.dwFirstChance)
return -1;
- printf_unfiltered ("gdb: unknown target exception 0x%08lx at %p\n",
- current_event.u.Exception.ExceptionRecord.ExceptionCode,
- current_event.u.Exception.ExceptionRecord.ExceptionAddress);
+ printf_unfiltered ("gdb: unknown target exception 0x%08lx at %s\n",
+ current_event.u.Exception.ExceptionRecord.ExceptionCode,
+ host_address_to_string (
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
break;
}
thread_info *th;
BOOL res;
- DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, %s);\n",
+ DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%lx, %s);\n",
current_event.dwProcessId, current_event.dwThreadId,
continue_status == DBG_CONTINUE ?
"DBG_CONTINUE" : "DBG_EXCEPTION_NOT_HANDLED"));
}
static void
-windows_resume (ptid_t ptid, int step, enum target_signal sig)
+windows_resume (struct target_ops *ops,
+ ptid_t ptid, int step, enum target_signal sig)
{
thread_info *th;
DWORD continue_status = DBG_CONTINUE;
if (step)
{
/* Single step by setting t bit */
- windows_fetch_inferior_registers (get_current_regcache (),
- gdbarch_ps_regnum (current_gdbarch));
+ struct regcache *regcache = get_current_regcache ();
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
+ windows_fetch_inferior_registers (ops, regcache,
+ gdbarch_ps_regnum (gdbarch));
th->context.EFlags |= FLAG_TRACE_BIT;
}
windows_continue (continue_status, ptid_get_tid (ptid));
}
+/* Ctrl-C handler used when the inferior is not run in the same console. The
+ handler is in charge of interrupting the inferior using DebugBreakProcess.
+ Note that this function is not available prior to Windows XP. In this case
+ we emit a warning. */
+BOOL WINAPI
+ctrl_c_handler (DWORD event_type)
+{
+ const int attach_flag = current_inferior ()->attach_flag;
+
+ /* Only handle Ctrl-C and Ctrl-Break events. Ignore others. */
+ if (event_type != CTRL_C_EVENT && event_type != CTRL_BREAK_EVENT)
+ return FALSE;
+
+ /* If the inferior and the debugger share the same console, do nothing as
+ the inferior has also received the Ctrl-C event. */
+ if (!new_console && !attach_flag)
+ return TRUE;
+
+ if (!DebugBreakProcess (current_process_handle))
+ warning (_("\
+Could not interrupt program. Press Ctrl-c in the program console."));
+
+ /* Return true to tell that Ctrl-C has been handled. */
+ return TRUE;
+}
+
/* Get the next event from the child. Return 1 if the event requires
- handling by WFI (or whatever).
- */
+ handling by WFI (or whatever). */
static int
-get_windows_debug_event (int pid, struct target_waitstatus *ourstatus)
+get_windows_debug_event (struct target_ops *ops,
+ int pid, struct target_waitstatus *ourstatus)
{
BOOL debug_event;
DWORD continue_status, event_code;
break;
case EXIT_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"EXIT_THREAD_DEBUG_EVENT"));
break;
case CREATE_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"CREATE_PROCESS_DEBUG_EVENT"));
current_process_handle = current_event.u.CreateProcessInfo.hProcess;
if (main_thread_id)
- windows_delete_thread (ptid_build (current_event.dwProcessId, 0,
- main_thread_id));
+ windows_delete_thread (ptid_build (current_event.dwProcessId, 0,
+ main_thread_id));
main_thread_id = current_event.dwThreadId;
/* Add the main thread */
th = windows_add_thread (ptid_build (current_event.dwProcessId, 0,
- current_event.dwThreadId),
- current_event.u.CreateProcessInfo.hThread);
+ current_event.dwThreadId),
+ current_event.u.CreateProcessInfo.hThread);
retval = current_event.dwThreadId;
break;
case EXIT_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"EXIT_PROCESS_DEBUG_EVENT"));
- if (saw_create != 1)
- break;
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
- retval = main_thread_id;
+ if (!windows_initialization_done)
+ {
+ target_terminal_ours ();
+ target_mourn_inferior ();
+ error (_("During startup program exited with code 0x%x."),
+ (unsigned int) current_event.u.ExitProcess.dwExitCode);
+ }
+ else if (saw_create == 1)
+ {
+ ourstatus->kind = TARGET_WAITKIND_EXITED;
+ ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
+ retval = main_thread_id;
+ }
break;
case LOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"LOAD_DLL_DEBUG_EVENT"));
break;
case UNLOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"UNLOAD_DLL_DEBUG_EVENT"));
break;
case EXCEPTION_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"EXCEPTION_DEBUG_EVENT"));
break;
case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
(unsigned) current_event.dwProcessId,
(unsigned) current_event.dwThreadId,
"OUTPUT_DEBUG_STRING_EVENT"));
if (!retval || saw_create != 1)
{
if (continue_status == -1)
- windows_resume (minus_one_ptid, 0, 1);
+ windows_resume (ops, minus_one_ptid, 0, 1);
else
CHECK (windows_continue (continue_status, -1));
}
/* Wait for interesting events to occur in the target process. */
static ptid_t
windows_wait (struct target_ops *ops,
- ptid_t ptid, struct target_waitstatus *ourstatus)
+ ptid_t ptid, struct target_waitstatus *ourstatus, int options)
{
int pid = -1;
while (1)
{
int retval;
-
- /* Ignore CTRL+C signals while waiting for a debug event.
- FIXME: brobecker/2008-05-20: When the user presses CTRL+C while
- the inferior is running, both the inferior and GDB receive the
- associated signal. If the inferior receives the signal first
- and the delay until GDB receives that signal is sufficiently long,
- GDB can sometimes receive the SIGINT after we have unblocked
- the CTRL+C handler. This would lead to the debugger to stop
- prematurely while handling the new-thread event that comes
- with the handling of the SIGINT inside the inferior, and then
- stop again immediately when the user tries to resume the execution
- in the inferior. This is a classic race, and it would be nice
- to find a better solution to that problem. But in the meantime,
- the current approach already greatly mitigate this issue. */
- SetConsoleCtrlHandler (NULL, TRUE);
- retval = get_windows_debug_event (pid, ourstatus);
- SetConsoleCtrlHandler (NULL, FALSE);
+
+ /* If the user presses Ctrl-c while the debugger is waiting
+ for an event, he expects the debugger to interrupt his program
+ and to get the prompt back. There are two possible situations:
+
+ - The debugger and the program do not share the console, in
+ which case the Ctrl-c event only reached the debugger.
+ In that case, the ctrl_c handler will take care of interrupting
+ the inferior. Note that this case is working starting with
+ Windows XP. For Windows 2000, Ctrl-C should be pressed in the
+ inferior console.
+
+ - The debugger and the program share the same console, in which
+ case both debugger and inferior will receive the Ctrl-c event.
+ In that case the ctrl_c handler will ignore the event, as the
+ Ctrl-c event generated inside the inferior will trigger the
+ expected debug event.
+
+ FIXME: brobecker/2008-05-20: If the inferior receives the
+ signal first and the delay until GDB receives that signal
+ is sufficiently long, GDB can sometimes receive the SIGINT
+ after we have unblocked the CTRL+C handler. This would
+ lead to the debugger stopping prematurely while handling
+ the new-thread event that comes with the handling of the SIGINT
+ inside the inferior, and then stop again immediately when
+ the user tries to resume the execution in the inferior.
+ This is a classic race that we should try to fix one day. */
+ SetConsoleCtrlHandler (&ctrl_c_handler, TRUE);
+ retval = get_windows_debug_event (ops, pid, ourstatus);
+ SetConsoleCtrlHandler (&ctrl_c_handler, FALSE);
if (retval)
return ptid_build (current_event.dwProcessId, 0, retval);
detach = deprecated_ui_loop_hook (0);
if (detach)
- windows_kill_inferior ();
+ windows_kill_inferior (ops);
}
}
}
clear_proceed_status ();
init_wait_for_inferior ();
- inf = add_inferior (pid);
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
inf->attach_flag = attaching;
/* Make the new process the current inferior, so terminal handling
terminal_init_inferior_with_pgrp (pid);
target_terminal_inferior ();
+ windows_initialization_done = 0;
inf->stop_soon = STOP_QUIETLY;
while (1)
{
break;
}
+ windows_initialization_done = 1;
inf->stop_soon = NO_STOP_QUIETLY;
stop_after_trap = 0;
return;
}
-/* Since Windows XP, detaching from a process is supported by Windows.
- The following code tries loading the appropriate functions dynamically.
- If loading these functions succeeds use them to actually detach from
- the inferior process, otherwise behave as usual, pretending that
- detach has worked. */
-static BOOL WINAPI (*kernel32_DebugSetProcessKillOnExit)(BOOL);
-static BOOL WINAPI (*kernel32_DebugActiveProcessStop)(DWORD);
-
-static int
-has_detach_ability (void)
-{
- static HMODULE kernel32 = NULL;
-
- if (!kernel32)
- kernel32 = LoadLibrary ("kernel32.dll");
- if (kernel32)
- {
- if (!kernel32_DebugSetProcessKillOnExit)
- kernel32_DebugSetProcessKillOnExit =
- (void *) GetProcAddress (kernel32, "DebugSetProcessKillOnExit");
- if (!kernel32_DebugActiveProcessStop)
- kernel32_DebugActiveProcessStop =
- (void *) GetProcAddress (kernel32, "DebugActiveProcessStop");
- if (kernel32_DebugSetProcessKillOnExit
- && kernel32_DebugActiveProcessStop)
- return 1;
- }
- return 0;
-}
-
/* Try to set or remove a user privilege to the current process. Return -1
if that fails, the previous setting of that privilege otherwise.
static int
set_process_privilege (const char *privilege, BOOL enable)
{
- static HMODULE advapi32 = NULL;
- static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE);
- static BOOL WINAPI (*LookupPrivilegeValue)(LPCSTR, LPCSTR, PLUID);
- static BOOL WINAPI (*AdjustTokenPrivileges)(HANDLE, BOOL, PTOKEN_PRIVILEGES,
- DWORD, PTOKEN_PRIVILEGES, PDWORD);
-
HANDLE token_hdl = NULL;
LUID restore_priv;
TOKEN_PRIVILEGES new_priv, orig_priv;
int ret = -1;
DWORD size;
- if (GetVersion () >= 0x80000000) /* No security availbale on 9x/Me */
- return 0;
-
- if (!advapi32)
- {
- if (!(advapi32 = LoadLibrary ("advapi32.dll")))
- goto out;
- if (!OpenProcessToken)
- OpenProcessToken =
- (void *) GetProcAddress (advapi32, "OpenProcessToken");
- if (!LookupPrivilegeValue)
- LookupPrivilegeValue =
- (void *) GetProcAddress (advapi32, "LookupPrivilegeValueA");
- if (!AdjustTokenPrivileges)
- AdjustTokenPrivileges =
- (void *) GetProcAddress (advapi32, "AdjustTokenPrivileges");
- if (!OpenProcessToken || !LookupPrivilegeValue || !AdjustTokenPrivileges)
- {
- advapi32 = NULL;
- goto out;
- }
- }
-
if (!OpenProcessToken (GetCurrentProcess (),
TOKEN_QUERY | TOKEN_ADJUST_PRIVILEGES,
&token_hdl))
goto out;
- if (!LookupPrivilegeValue (NULL, privilege, &restore_priv))
+ if (!LookupPrivilegeValueA (NULL, privilege, &restore_priv))
goto out;
new_priv.PrivilegeCount = 1;
if (!ok)
error (_("Can't attach to process."));
- if (has_detach_ability ())
- kernel32_DebugSetProcessKillOnExit (FALSE);
+ DebugSetProcessKillOnExit (FALSE);
if (from_tty)
{
{
int detached = 1;
- if (has_detach_ability ())
- {
- ptid_t ptid = {-1};
- windows_resume (ptid, 0, TARGET_SIGNAL_0);
+ ptid_t ptid = {-1};
+ windows_resume (ops, ptid, 0, TARGET_SIGNAL_0);
- if (!kernel32_DebugActiveProcessStop (current_event.dwProcessId))
- {
- error (_("Can't detach process %lu (error %lu)"),
- current_event.dwProcessId, GetLastError ());
- detached = 0;
- }
- kernel32_DebugSetProcessKillOnExit (FALSE);
+ if (!DebugActiveProcessStop (current_event.dwProcessId))
+ {
+ error (_("Can't detach process %lu (error %lu)"),
+ current_event.dwProcessId, GetLastError ());
+ detached = 0;
}
+ DebugSetProcessKillOnExit (FALSE);
+
if (detached && from_tty)
{
char *exec_file = get_exec_file (0);
char *toexec;
char shell[MAX_PATH + 1]; /* Path to shell */
const char *sh;
+#ifdef __CYGWIN__
int tty;
int ostdin, ostdout, ostderr;
+#else
+ HANDLE tty;
+#endif
const char *inferior_io_terminal = get_inferior_io_terminal ();
if (!exec_file)
dup2 (tty, 2);
}
}
+#else
+ if (!inferior_io_terminal)
+ tty = INVALID_HANDLE_VALUE;
+ else
+ {
+ SECURITY_ATTRIBUTES sa;
+ sa.nLength = sizeof(sa);
+ sa.lpSecurityDescriptor = 0;
+ sa.bInheritHandle = TRUE;
+ tty = CreateFileA (inferior_io_terminal, GENERIC_READ | GENERIC_WRITE,
+ 0, &sa, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
+ if (tty == INVALID_HANDLE_VALUE)
+ warning (_("Warning: Failed to open TTY %s, error %#x."),
+ inferior_io_terminal, (unsigned) GetLastError ());
+ else
+ {
+ si.hStdInput = tty;
+ si.hStdOutput = tty;
+ si.hStdError = tty;
+ si.dwFlags |= STARTF_USESTDHANDLES;
+ }
+ }
#endif
windows_init_thread_list ();
close (ostdout);
close (ostderr);
}
+#else
+ if (tty != INVALID_HANDLE_VALUE)
+ CloseHandle (tty);
#endif
if (!ret)
{
DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
len, (DWORD) (uintptr_t) memaddr));
- if (!WriteProcessMemory (current_process_handle,
+ if (!WriteProcessMemory (current_process_handle,
(LPVOID) (uintptr_t) memaddr, our,
len, &done))
done = 0;
- FlushInstructionCache (current_process_handle,
+ FlushInstructionCache (current_process_handle,
(LPCVOID) (uintptr_t) memaddr, len);
}
else
{
DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n",
len, (DWORD) (uintptr_t) memaddr));
- if (!ReadProcessMemory (current_process_handle,
+ if (!ReadProcessMemory (current_process_handle,
(LPCVOID) (uintptr_t) memaddr, our,
len, &done))
done = 0;
}
static void
-windows_kill_inferior (void)
+windows_kill_inferior (struct target_ops *ops)
{
CHECK (TerminateProcess (current_process_handle, 0));
obstack_grow_str (&obstack, "<library-list>\n");
for (so = solib_start.next; so; so = so->next)
windows_xfer_shared_library (so->so_name, (CORE_ADDR) (uintptr_t) so->lm_info->load_addr,
- &obstack);
+ target_gdbarch, &obstack);
obstack_grow_str0 (&obstack, "</library-list>\n");
buf = obstack_finish (&obstack);
}
}
+static ptid_t
+windows_get_ada_task_ptid (long lwp, long thread)
+{
+ return ptid_build (ptid_get_pid (inferior_ptid), 0, lwp);
+}
+
static void
init_windows_ops (void)
{
windows_ops.to_pid_to_str = windows_pid_to_str;
windows_ops.to_stop = windows_stop;
windows_ops.to_stratum = process_stratum;
- windows_ops.to_has_all_memory = 1;
- windows_ops.to_has_memory = 1;
- windows_ops.to_has_stack = 1;
- windows_ops.to_has_registers = 1;
- windows_ops.to_has_execution = 1;
+ windows_ops.to_has_all_memory = default_child_has_all_memory;
+ windows_ops.to_has_memory = default_child_has_memory;
+ windows_ops.to_has_stack = default_child_has_stack;
+ windows_ops.to_has_registers = default_child_has_registers;
+ windows_ops.to_has_execution = default_child_has_execution;
windows_ops.to_pid_to_exec_file = windows_pid_to_exec_file;
+ windows_ops.to_get_ada_task_ptid = windows_get_ada_task_ptid;
+
i386_use_watchpoints (&windows_ops);
+ i386_dr_low.set_control = cygwin_set_dr7;
+ i386_dr_low.set_addr = cygwin_set_dr;
+ i386_dr_low.reset_addr = NULL;
+ i386_dr_low.get_status = cygwin_get_dr6;
+
+ /* i386_dr_low.debug_register_length field is set by
+ calling i386_set_debug_register_length function
+ in processor windows specific native file. */
+
windows_ops.to_magic = OPS_MAGIC;
}
add_com_alias ("sharedlibrary", "dll-symbols", class_alias, 1);
+ add_com_alias ("add-shared-symbol-files", "dll-symbols", class_alias, 1);
+
+ add_com_alias ("assf", "dll-symbols", class_alias, 1);
+
#ifdef __CYGWIN__
add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\
Set use of shell to start subprocess."), _("\
/* Pass the address ADDR to the inferior in the I'th debug register.
Here we just store the address in dr array, the registers will be
actually set up when windows_continue is called. */
-void
+static void
cygwin_set_dr (int i, CORE_ADDR addr)
{
if (i < 0 || i > 3)
internal_error (__FILE__, __LINE__,
_("Invalid register %d in cygwin_set_dr.\n"), i);
- dr[i] = (unsigned) addr;
+ dr[i] = addr;
debug_registers_changed = 1;
debug_registers_used = 1;
}
/* Pass the value VAL to the inferior in the DR7 debug control
register. Here we just store the address in D_REGS, the watchpoint
will be actually set up in windows_wait. */
-void
-cygwin_set_dr7 (unsigned val)
+static void
+cygwin_set_dr7 (unsigned long val)
{
- dr[7] = val;
+ dr[7] = (CORE_ADDR) val;
debug_registers_changed = 1;
debug_registers_used = 1;
}
/* Get the value of the DR6 debug status register from the inferior.
Here we just return the value stored in dr[6]
by the last call to thread_rec for current_event.dwThreadId id. */
-unsigned
+static unsigned long
cygwin_get_dr6 (void)
{
- return dr[6];
+ return (unsigned long) dr[6];
}
/* Determine if the thread referenced by "ptid" is alive
by "polling" it. If WaitForSingleObject returns WAIT_OBJECT_0
it means that the thread has died. Otherwise it is assumed to be alive. */
static int
-windows_thread_alive (ptid_t ptid)
+windows_thread_alive (struct target_ops *ops, ptid_t ptid)
{
int tid;
}
}
+/* Define dummy functions which always return error for the rare cases where
+ these functions could not be found. */
+static BOOL WINAPI
+bad_DebugActiveProcessStop (DWORD w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_DebugBreakProcess (HANDLE w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_DebugSetProcessKillOnExit (BOOL w)
+{
+ return FALSE;
+}
+static BOOL WINAPI
+bad_EnumProcessModules (HANDLE w, HMODULE *x, DWORD y, LPDWORD z)
+{
+ return FALSE;
+}
+static DWORD WINAPI
+bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z)
+{
+ return 0;
+}
+static BOOL WINAPI
+bad_GetModuleInformation (HANDLE w, HMODULE x, LPMODULEINFO y, DWORD z)
+{
+ return FALSE;
+}
+
+static BOOL WINAPI
+bad_OpenProcessToken (HANDLE w, DWORD x, PHANDLE y)
+{
+ return FALSE;
+}
+
+/* Load any functions which may not be available in ancient versions
+ of Windows. */
void
-_initialize_psapi (void)
+_initialize_loadable (void)
{
+ HMODULE hm = NULL;
+
+ hm = LoadLibrary ("kernel32.dll");
+ if (hm)
+ {
+ dyn_DebugActiveProcessStop = (void *)
+ GetProcAddress (hm, "DebugActiveProcessStop");
+ dyn_DebugBreakProcess = (void *)
+ GetProcAddress (hm, "DebugBreakProcess");
+ dyn_DebugSetProcessKillOnExit = (void *)
+ GetProcAddress (hm, "DebugSetProcessKillOnExit");
+ }
+
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in kernel32.dll. */
+ if (!dyn_DebugBreakProcess)
+ dyn_DebugBreakProcess = bad_DebugBreakProcess;
+ if (!dyn_DebugActiveProcessStop || !dyn_DebugSetProcessKillOnExit)
+ {
+ dyn_DebugActiveProcessStop = bad_DebugActiveProcessStop;
+ dyn_DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit;
+ }
+
/* Load optional functions used for retrieving filename information
associated with the currently debugged process or its dlls. */
- if (!psapi_loaded)
+ hm = LoadLibrary ("psapi.dll");
+ if (hm)
{
- HMODULE psapi_module_handle;
-
- psapi_loaded = -1;
+ dyn_EnumProcessModules = (void *)
+ GetProcAddress (hm, "EnumProcessModules");
+ dyn_GetModuleInformation = (void *)
+ GetProcAddress (hm, "GetModuleInformation");
+ dyn_GetModuleFileNameExA = (void *)
+ GetProcAddress (hm, "GetModuleFileNameExA");
+ }
- psapi_module_handle = LoadLibrary ("psapi.dll");
- if (psapi_module_handle)
- {
- psapi_EnumProcessModules = (void *) GetProcAddress (psapi_module_handle, "EnumProcessModules");
- psapi_GetModuleInformation = (void *) GetProcAddress (psapi_module_handle, "GetModuleInformation");
- psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle, "GetModuleFileNameExA");
-
- if (psapi_EnumProcessModules != NULL
- && psapi_GetModuleInformation != NULL
- && psapi_GetModuleFileNameExA != NULL)
- psapi_loaded = 1;
- }
+ if (!dyn_EnumProcessModules || !dyn_GetModuleInformation || !dyn_GetModuleFileNameExA)
+ {
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in psapi.dll. */
+ dyn_EnumProcessModules = bad_EnumProcessModules;
+ dyn_GetModuleInformation = bad_GetModuleInformation;
+ dyn_GetModuleFileNameExA = bad_GetModuleFileNameExA;
+ /* This will probably fail on Windows 9x/Me. Let the user know that we're
+ missing some functionality. */
+ warning(_("cannot automatically find executable file or library to read symbols.\nUse \"file\" or \"dll\" command to load executable/libraries directly."));
}
- /* This will probably fail on Windows 9x/Me. Let the user know that we're
- missing some functionality. */
- if (psapi_loaded < 0)
- warning(_("cannot automatically find executable file or library to read symbols. Use \"file\" or \"dll\" command to load executable/libraries directly."));
+ hm = LoadLibrary ("advapi32.dll");
+ if (hm)
+ {
+ dyn_OpenProcessToken = (void *)
+ GetProcAddress (hm, "OpenProcessToken");
+ dyn_LookupPrivilegeValueA = (void *)
+ GetProcAddress (hm, "LookupPrivilegeValueA");
+ dyn_AdjustTokenPrivileges = (void *)
+ GetProcAddress (hm, "AdjustTokenPrivileges");
+ /* Only need to set one of these since if OpenProcessToken fails nothing
+ else is needed. */
+ if (!dyn_OpenProcessToken || !dyn_LookupPrivilegeValueA || !dyn_AdjustTokenPrivileges)
+ dyn_OpenProcessToken = bad_OpenProcessToken;
+ }
}
projects / deliverable / binutils-gdb.git / blobdiff