-/* Target-vector operations for controlling win32 child processes, for GDB.
+/* 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 Free Software Foundation, Inc.
+ 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 <signal.h>
#include "buildsym.h"
+#include "filenames.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdb_obstack.h"
#include "gdb_string.h"
-#include "gdb_stdint.h"
#include "gdbthread.h"
#include "gdbcmd.h"
#include <sys/param.h>
#include "i386-tdep.h"
#include "i387-tdep.h"
-#include "i386-cygwin-tdep.h"
-
-static struct target_ops win32_ops;
+#include "windows-tdep.h"
+#include "windows-nat.h"
+#include "i386-nat.h"
+#include "complaints.h"
+
+#define AdjustTokenPrivileges dyn_AdjustTokenPrivileges
+#define DebugActiveProcessStop dyn_DebugActiveProcessStop
+#define DebugBreakProcess dyn_DebugBreakProcess
+#define DebugSetProcessKillOnExit dyn_DebugSetProcessKillOnExit
+#define EnumProcessModules dyn_EnumProcessModules
+#define GetModuleInformation dyn_GetModuleInformation
+#define LookupPrivilegeValueA dyn_LookupPrivilegeValueA
+#define OpenProcessToken dyn_OpenProcessToken
+#define GetConsoleFontSize dyn_GetConsoleFontSize
+#define GetCurrentConsoleFont dyn_GetCurrentConsoleFont
+
+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 BOOL WINAPI (*GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO,
+ DWORD);
+static BOOL WINAPI (*LookupPrivilegeValueA)(LPCSTR, LPCSTR, PLUID);
+static BOOL WINAPI (*OpenProcessToken)(HANDLE, DWORD, PHANDLE);
+static BOOL WINAPI (*GetCurrentConsoleFont) (HANDLE, BOOL,
+ CONSOLE_FONT_INFO *);
+static COORD WINAPI (*GetConsoleFontSize) (HANDLE, DWORD);
+
+static struct target_ops windows_ops;
+
+#undef STARTUPINFO
+#undef CreateProcess
+#undef GetModuleFileNameEx
-#ifdef __CYGWIN__
-/* The starting and ending address of the cygwin1.dll text segment. */
-static bfd_vma cygwin_load_start;
-static bfd_vma cygwin_load_end;
+#ifndef __CYGWIN__
+# define __PMAX (MAX_PATH + 1)
+ static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE, LPSTR, DWORD);
+# define STARTUPINFO STARTUPINFOA
+# define CreateProcess CreateProcessA
+# define GetModuleFileNameEx_name "GetModuleFileNameExA"
+# define bad_GetModuleFileNameEx bad_GetModuleFileNameExA
+#else
+# define __PMAX PATH_MAX
+/* The starting and ending address of the cygwin1.dll text segment. */
+ static CORE_ADDR cygwin_load_start;
+ static CORE_ADDR cygwin_load_end;
+# define __USEWIDE
+ typedef wchar_t cygwin_buf_t;
+ static DWORD WINAPI (*GetModuleFileNameEx) (HANDLE, HMODULE,
+ LPWSTR, DWORD);
+# define STARTUPINFO STARTUPINFOW
+# define CreateProcess CreateProcessW
+# define GetModuleFileNameEx_name "GetModuleFileNameExW"
+# define bad_GetModuleFileNameEx bad_GetModuleFileNameExW
#endif
-static int have_saved_context; /* True if we've saved context from a cygwin signal. */
-static CONTEXT saved_context; /* Containes the saved context from a cygwin signal. */
+static int have_saved_context; /* True if we've saved context from a
+ cygwin signal. */
+static CONTEXT saved_context; /* Containes the saved context from a
+ cygwin signal. */
/* If we're not using the old Cygwin header file set, define the
following which never should have been in the generic Win32 API
- headers in the first place since they were our own invention... */
+ headers in the first place since they were our own invention... */
#ifndef _GNU_H_WINDOWS_H
enum
{
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,
+ so define it as zero if not already defined. */
+#define CONTEXT_EXTENDED_REGISTERS 0
+#endif
#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.
- FIXME: This should be in a cygwin include file. */
+ FIXME: This should be in a cygwin include file. */
#ifndef _CYGWIN_SIGNAL_STRING
#define _CYGWIN_SIGNAL_STRING "cYgSiGw00f"
#endif
#define DEBUG_MEM(x) if (debug_memory) printf_unfiltered x
#define DEBUG_EXCEPT(x) if (debug_exceptions) printf_unfiltered x
-static void win32_stop (void);
-static int win32_win32_thread_alive (ptid_t);
-static void win32_kill_inferior (void);
+static void windows_stop (ptid_t);
+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 */
+/* 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. */
struct thread_info_struct *next;
DWORD id;
HANDLE h;
+ CORE_ADDR thread_local_base;
char *name;
int suspended;
int reload_context;
static thread_info thread_head;
-/* The process and thread handles for the above context. */
+/* The process and thread handles for the above context. */
static DEBUG_EVENT current_event; /* The current debug event from
WaitForDebugEvent */
static thread_info *current_thread; /* Info on currently selected thread */
static DWORD main_thread_id; /* Thread ID of the main thread */
-/* Counts of things. */
+/* Counts of things. */
static int exception_count = 0;
static int event_count = 0;
static int saw_create;
static int open_process_used = 0;
-/* User options. */
+/* User options. */
static int new_console = 0;
#ifdef __CYGWIN__
static int cygwin_exceptions = 0;
static int debug_exceptions = 0; /* show target exceptions */
static int useshell = 0; /* use shell for subprocesses */
-/* This vector maps GDB's idea of a register's number into an address
- in the win32 exception context vector.
+/* This vector maps GDB's idea of a register's number into an offset
+ in the windows exception context vector.
It also contains the bit mask needed to load the register in question.
+ The contents of this table can only be computed by the units
+ that provide CPU-specific support for Windows native debugging.
+ These units should set the table by calling
+ windows_set_context_register_offsets.
+
One day we could read a reg, we could inspect the context we
already have loaded, if it doesn't have the bit set that we need,
we read that set of registers in using GetThreadContext. If the
- context already contains what we need, we just unpack it. Then to
+ context already contains what we need, we just unpack it. Then to
write a register, first we have to ensure that the context contains
the other regs of the group, and then we copy the info in and set
- out bit. */
-
-#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 (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)
- /* XMM0-7 */ ,
- context_offset (ExtendedRegisters[10*16]),
- context_offset (ExtendedRegisters[11*16]),
- context_offset (ExtendedRegisters[12*16]),
- context_offset (ExtendedRegisters[13*16]),
- context_offset (ExtendedRegisters[14*16]),
- context_offset (ExtendedRegisters[15*16]),
- context_offset (ExtendedRegisters[16*16]),
- context_offset (ExtendedRegisters[17*16]),
- /* MXCSR */
- context_offset (ExtendedRegisters[24])
-};
+ out bit. */
-#undef context_offset
+static const int *mappings;
/* This vector maps the target's idea of an exception (extracted
- from the DEBUG_EVENT structure) to GDB's idea. */
+ from the DEBUG_EVENT structure) to GDB's idea. */
struct xlate_exception
{
{STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE},
{-1, -1}};
+/* Set the MAPPINGS static global to OFFSETS.
+ See the description of MAPPINGS for more details. */
+
+void
+windows_set_context_register_offsets (const int *offsets)
+{
+ mappings = offsets;
+}
+
static void
check (BOOL ok, const char *file, int line)
{
return NULL;
}
-/* Add a thread to the thread list */
+/* Add a thread to the thread list. */
static thread_info *
-win32_add_thread (DWORD id, HANDLE h)
+windows_add_thread (ptid_t ptid, HANDLE h, void *tlb)
{
thread_info *th;
+ DWORD id;
+
+ gdb_assert (ptid_get_tid (ptid) != 0);
+
+ id = ptid_get_tid (ptid);
if ((th = thread_rec (id, FALSE)))
return th;
th = XZALLOC (thread_info);
th->id = id;
th->h = h;
+ th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb;
th->next = thread_head.next;
thread_head.next = th;
- add_thread (pid_to_ptid (id));
- /* Set the debug registers for the new thread in they are used. */
+ add_thread (ptid);
+ /* Set the debug registers for the new thread if they are used. */
if (debug_registers_used)
{
/* Only change the value of the debug registers. */
}
/* Clear out any old thread list and reintialize it to a
- pristine state. */
+ pristine state. */
static void
-win32_init_thread_list (void)
+windows_init_thread_list (void)
{
thread_info *th = &thread_head;
- DEBUG_EVENTS (("gdb: win32_init_thread_list\n"));
+ DEBUG_EVENTS (("gdb: windows_init_thread_list\n"));
init_thread_list ();
while (th->next != NULL)
{
thread_head.next = NULL;
}
-/* Delete a thread from the list of threads */
+/* Delete a thread from the list of threads. */
static void
-win32_delete_thread (DWORD id)
+windows_delete_thread (ptid_t ptid)
{
thread_info *th;
+ DWORD id;
+
+ gdb_assert (ptid_get_tid (ptid) != 0);
+
+ id = ptid_get_tid (ptid);
if (info_verbose)
- printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id)));
- delete_thread (pid_to_ptid (id));
+ printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (ptid));
+ delete_thread (ptid);
for (th = &thread_head;
th->next != NULL && th->next->id != id;
}
static void
-do_win32_fetch_inferior_registers (struct regcache *regcache, int r)
+do_windows_fetch_inferior_registers (struct regcache *regcache, int r)
{
char *context_offset = ((char *) ¤t_thread->context) + mappings[r];
struct gdbarch *gdbarch = get_regcache_arch (regcache);
if (!current_thread)
return; /* Windows sometimes uses a non-existent thread id in its
- events */
+ events. */
if (current_thread->reload_context)
{
#ifdef __COPY_CONTEXT_SIZE
if (have_saved_context)
{
- /* Lie about where the program actually is stopped since cygwin has informed us that
- we should consider the signal to have occurred at another location which is stored
- in "saved_context. */
- memcpy (¤t_thread->context, &saved_context, __COPY_CONTEXT_SIZE);
+ /* Lie about where the program actually is stopped since
+ cygwin has informed us that we should consider the signal
+ to have occurred at another location which is stored in
+ "saved_context. */
+ memcpy (¤t_thread->context, &saved_context,
+ __COPY_CONTEXT_SIZE);
have_saved_context = 0;
}
else
thread_info *th = current_thread;
th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
GetThreadContext (th->h, &th->context);
- /* Copy dr values from that thread.
- But only if there were not modified since last stop. PR gdb/2388 */
+ /* Copy dr values from that thread.
+ But only if there were not modified since last stop.
+ PR gdb/2388 */
if (!debug_registers_changed)
{
dr[0] = th->context.Dr0;
else
{
for (r = 0; r < gdbarch_num_regs (gdbarch); r++)
- do_win32_fetch_inferior_registers (regcache, r);
+ do_windows_fetch_inferior_registers (regcache, r);
}
}
static void
-win32_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 (PIDGET (inferior_ptid), TRUE);
+ current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE);
/* Check if current_thread exists. Windows sometimes uses a non-existent
- thread id in its events */
+ thread id in its events. */
if (current_thread)
- do_win32_fetch_inferior_registers (regcache, r);
+ do_windows_fetch_inferior_registers (regcache, r);
}
static void
-do_win32_store_inferior_registers (const struct regcache *regcache, int r)
+do_windows_store_inferior_registers (const struct regcache *regcache, int r)
{
if (!current_thread)
- /* Windows sometimes uses a non-existent thread id in its events */;
+ /* Windows sometimes uses a non-existent thread id in its events. */;
else if (r >= 0)
regcache_raw_collect (regcache, r,
((char *) ¤t_thread->context) + mappings[r]);
else
{
for (r = 0; r < gdbarch_num_regs (get_regcache_arch (regcache)); r++)
- do_win32_store_inferior_registers (regcache, r);
+ do_windows_store_inferior_registers (regcache, r);
}
}
-/* Store a new register value into the current thread context */
+/* Store a new register value into the current thread context. */
static void
-win32_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 (PIDGET (inferior_ptid), TRUE);
+ current_thread = thread_rec (ptid_get_tid (inferior_ptid), TRUE);
/* Check if current_thread exists. Windows sometimes uses a non-existent
- thread id in its events */
+ thread id in its events. */
if (current_thread)
- do_win32_store_inferior_registers (regcache, r);
+ 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
+/* Get the name of a given module at given base address. If base_address
is zero return the first loaded module (which is always the name of the
executable). */
static int
-get_module_name (DWORD base_address, char *dll_name_ret)
+get_module_name (LPVOID base_address, char *dll_name_ret)
{
DWORD len;
MODULEINFO mi;
int i;
HMODULE dh_buf[1];
- HMODULE *DllHandle = dh_buf; /* Set to temporary storage for initial query */
+ HMODULE *DllHandle = dh_buf; /* Set to temporary storage for
+ initial query. */
DWORD cbNeeded;
#ifdef __CYGWIN__
- char pathbuf[PATH_MAX + 1]; /* Temporary storage prior to converting to
- posix form */
-#else
- char *pathbuf = dll_name_ret; /* Just copy directly to passed-in arg */
+ cygwin_buf_t pathbuf[__PMAX]; /* Temporary storage prior to converting to
+ posix form. __PMAX is always enough
+ as long as SO_NAME_MAX_PATH_SIZE is defined
+ as 512. */
#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)
+ /* Find size of buffer needed to handle list of modules loaded in
+ inferior. */
+ if (!EnumProcessModules (current_process_handle, DllHandle,
+ sizeof (HMODULE), &cbNeeded) || !cbNeeded)
goto failed;
- /* Allocate correct amount of space for module list */
+ /* Allocate correct amount of space for module list. */
DllHandle = (HMODULE *) alloca (cbNeeded);
if (!DllHandle)
goto failed;
- /* Get the list of modules */
- if (!psapi_EnumProcessModules (current_process_handle, DllHandle, cbNeeded,
+ /* Get the list of modules. */
+ 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)))
+ /* Get information on this module. */
+ if (!GetModuleInformation (current_process_handle, DllHandle[i],
+ &mi, sizeof (mi)))
error (_("Can't get module info"));
- if (!base_address || (DWORD) (mi.lpBaseOfDll) == base_address)
+ 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);
- if (len == 0)
- error (_("Error getting dll name: %u."), (unsigned) GetLastError ());
+ /* Try to find the name of the given module. */
#ifdef __CYGWIN__
- /* Cygwin prefers that the path be in /x/y/z format */
- cygwin_conv_to_full_posix_path (pathbuf, dll_name_ret);
+ /* Cygwin prefers that the path be in /x/y/z format. */
+ len = GetModuleFileNameEx (current_process_handle,
+ DllHandle[i], pathbuf, __PMAX);
+ if (len == 0)
+ error (_("Error getting dll name: %lu."), GetLastError ());
+ if (cygwin_conv_path (CCP_WIN_W_TO_POSIX, pathbuf, dll_name_ret,
+ __PMAX) < 0)
+ error (_("Error converting dll name to POSIX: %d."), errno);
+#else
+ len = GetModuleFileNameEx (current_process_handle,
+ DllHandle[i], dll_name_ret, __PMAX);
+ if (len == 0)
+ error (_("Error getting dll name: %u."),
+ (unsigned) GetLastError ());
#endif
return 1; /* success */
}
}
/* Encapsulate the information required in a call to
- symbol_file_add_args */
+ symbol_file_add_args. */
struct safe_symbol_file_add_args
{
char *name;
struct objfile *ret;
};
-/* Maintain a linked list of "so" information. */
+/* Maintain a linked list of "so" information. */
struct lm_info
{
- DWORD load_addr;
+ LPVOID load_addr;
};
static struct so_list solib_start, *solib_end;
/* Call symbol_file_add with stderr redirected. We don't care if there
- are errors. */
+ are errors. */
static int
safe_symbol_file_add_stub (void *argv)
{
#define p ((struct safe_symbol_file_add_args *) argv)
- struct so_list *so = &solib_start;
-
- 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
}
-/* Restore gdb's stderr after calling symbol_file_add */
+/* Restore gdb's stderr after calling symbol_file_add. */
static void
safe_symbol_file_add_cleanup (void *p)
{
#undef sp
}
-/* symbol_file_add wrapper that prevents errors from being displayed. */
+/* symbol_file_add wrapper that prevents errors from being displayed. */
static struct objfile *
safe_symbol_file_add (char *name, int from_tty,
struct section_addr_info *addrs,
}
static struct so_list *
-win32_make_so (const char *name, DWORD load_addr)
+windows_make_so (const char *name, LPVOID load_addr)
{
struct so_list *so;
- char buf[MAX_PATH + 1];
- char cwd[MAX_PATH + 1];
char *p;
+#ifndef __CYGWIN__
+ char buf[__PMAX];
+ char cwd[__PMAX];
WIN32_FIND_DATA w32_fd;
HANDLE h = FindFirstFile(name, &w32_fd);
- MEMORY_BASIC_INFORMATION m;
if (h == INVALID_HANDLE_VALUE)
strcpy (buf, name);
SetCurrentDirectory (cwd);
}
}
-
if (strcasecmp (buf, "ntdll.dll") == 0)
{
GetSystemDirectory (buf, sizeof (buf));
strcat (buf, "\\ntdll.dll");
}
+#else
+ cygwin_buf_t buf[__PMAX];
+
+ buf[0] = 0;
+ if (access (name, F_OK) != 0)
+ {
+ if (strcasecmp (name, "ntdll.dll") == 0)
+#ifdef __USEWIDE
+ {
+ GetSystemDirectoryW (buf, sizeof (buf) / sizeof (wchar_t));
+ wcscat (buf, L"\\ntdll.dll");
+ }
+#else
+ {
+ GetSystemDirectoryA (buf, sizeof (buf) / sizeof (wchar_t));
+ strcat (buf, "\\ntdll.dll");
+ }
+#endif
+ }
+#endif
so = XZALLOC (struct so_list);
so->lm_info = (struct lm_info *) xmalloc (sizeof (struct lm_info));
so->lm_info->load_addr = load_addr;
#ifndef __CYGWIN__
strcpy (so->so_name, buf);
#else
- cygwin_conv_to_posix_path (buf, so->so_name);
+ if (buf[0])
+ cygwin_conv_path (CCP_WIN_W_TO_POSIX, buf, so->so_name,
+ SO_NAME_MAX_PATH_SIZE);
+ else
+ {
+ char *rname = realpath (name, NULL);
+ if (rname && strlen (rname) < SO_NAME_MAX_PATH_SIZE)
+ {
+ strcpy (so->so_name, rname);
+ free (rname);
+ }
+ else
+ error (_("dll path too long"));
+ }
/* Record cygwin1.dll .text start/end. */
p = strchr (so->so_name, '\0') - (sizeof ("/cygwin1.dll") - 1);
if (p >= so->so_name && strcasecmp (p, "/cygwin1.dll") == 0)
return so;
}
- /* The symbols in a dll are offset by 0x1000, which is the the
+ /* The symbols in a dll are offset by 0x1000, which is the
offset from 0 of the first byte in an image - because of the
- file header and the section alignment. */
- cygwin_load_start = load_addr + 0x1000;
+ file header and the section alignment. */
+ cygwin_load_start = (CORE_ADDR) (uintptr_t) ((char *)
+ load_addr + 0x1000);
cygwin_load_end = cygwin_load_start + bfd_section_size (abfd, text);
bfd_close (abfd);
static char *
get_image_name (HANDLE h, void *address, int unicode)
{
- static char buf[(2 * MAX_PATH) + 1];
+#ifdef __CYGWIN__
+ static char buf[__PMAX];
+#else
+ static char buf[(2 * __PMAX) + 1];
+#endif
DWORD size = unicode ? sizeof (WCHAR) : sizeof (char);
char *address_ptr;
int len = 0;
char b[2];
- DWORD done;
+ SIZE_T done;
/* 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. */
+ a program. It will not work for attached processes. */
if (address == NULL)
return NULL;
/* See if we could read the address of a string, and that the
- address isn't null. */
- if (!ReadProcessMemory (h, address, &address_ptr, sizeof (address_ptr), &done)
+ address isn't null. */
+ if (!ReadProcessMemory (h, address, &address_ptr,
+ sizeof (address_ptr), &done)
|| done != sizeof (address_ptr) || !address_ptr)
return NULL;
- /* Find the length of the string */
+ /* Find the length of the string. */
while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done)
&& (b[0] != 0 || b[size - 1] != 0) && done == size)
continue;
WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR));
ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR),
&done);
-
- WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0);
+#ifdef __CYGWIN__
+ wcstombs (buf, unicode_address, __PMAX);
+#else
+ WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, sizeof buf,
+ 0, 0);
+#endif
}
return buf;
handle_load_dll (void *dummy)
{
LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
- char dll_buf[MAX_PATH + 1];
+ char dll_buf[__PMAX];
char *dll_name = NULL;
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
- if (!get_module_name ((DWORD) event->lpBaseOfDll, dll_buf))
+ if (!get_module_name (event->lpBaseOfDll, dll_buf))
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
dll_name = dll_buf;
if (!dll_name)
return 1;
- solib_end->next = win32_make_so (dll_name, (DWORD) event->lpBaseOfDll);
+ solib_end->next = windows_make_so (dll_name, event->lpBaseOfDll);
solib_end = solib_end->next;
- DEBUG_EVENTS (("gdb: Loading dll \"%s\" at 0x%lx.\n", solib_end->so_name,
- (DWORD) 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;
}
static void
-win32_free_so (struct so_list *so)
+windows_free_so (struct so_list *so)
{
if (so->lm_info)
xfree (so->lm_info);
static int
handle_unload_dll (void *dummy)
{
- DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll;
+ LPVOID lpBaseOfDll = current_event.u.UnloadDll.lpBaseOfDll;
struct so_list *so;
for (so = &solib_start; so->next != NULL; so = so->next)
solib_end = so;
DEBUG_EVENTS (("gdb: Unloading dll \"%s\".\n", sodel->so_name));
- win32_free_so (sodel);
+ windows_free_so (sodel);
solib_add (NULL, 0, NULL, auto_solib_add);
return 1;
}
- error (_("Error: dll starting at 0x%lx not found."), (DWORD) lpBaseOfDll);
+ /* We did not find any DLL that was previously loaded at this address,
+ so register a complaint. We do not report an error, because we have
+ observed that this may be happening under some circumstances. For
+ instance, running 32bit applications on x64 Windows causes us to receive
+ 4 mysterious UNLOAD_DLL_DEBUG_EVENTs during the startup phase (these
+ events are apparently caused by the WOW layer, the interface between
+ 32bit and 64bit worlds). */
+ complaint (&symfile_complaints, _("dll starting at %s not found."),
+ host_address_to_string (lpBaseOfDll));
return 0;
}
-/* Clear list of loaded DLLs. */
+/* Clear list of loaded DLLs. */
static void
-win32_clear_solib (void)
+windows_clear_solib (void)
{
solib_start.next = NULL;
solib_end = &solib_start;
}
-/* Load DLL symbol info. */
+/* Load DLL symbol info. */
void
dll_symbol_command (char *args, int from_tty)
{
/* 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. */
+ a Cygwin signal. Otherwise just print the string as a warning. */
static int
handle_output_debug_string (struct target_waitstatus *ourstatus)
{
&s, 1024, 0)
|| !s || !*s)
/* nothing to do */;
- else if (strncmp (s, _CYGWIN_SIGNAL_STRING, sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0)
+ else if (strncmp (s, _CYGWIN_SIGNAL_STRING,
+ sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0)
{
#ifdef __CYGWIN__
if (strncmp (s, "cYg", 3) != 0)
#ifdef __COPY_CONTEXT_SIZE
else
{
- /* Got a cygwin signal marker. A cygwin signal is followed by the signal number
- itself and then optionally followed by the thread id and address to saved context
- within the DLL. If these are supplied, then the given thread is assumed to have
- issued the signal and the context from the thread is assumed to be stored at the
- given address in the inferior. Tell gdb to treat this like a real signal. */
+ /* Got a cygwin signal marker. A cygwin signal is followed by
+ the signal number itself and then optionally followed by the
+ thread id and address to saved context within the DLL. If
+ these are supplied, then the given thread is assumed to have
+ issued the signal and the context from the thread is assumed
+ to be stored at the given address in the inferior. Tell gdb
+ to treat this like a real signal. */
char *p;
int sig = strtol (s + sizeof (_CYGWIN_SIGNAL_STRING) - 1, &p, 0);
int gotasig = target_signal_from_host (sig);
retval = main_thread_id;
else if ((x = (LPCVOID) strtoul (p, &p, 0))
&& ReadProcessMemory (current_process_handle, x,
- &saved_context, __COPY_CONTEXT_SIZE, &n)
+ &saved_context,
+ __COPY_CONTEXT_SIZE, &n)
&& n == __COPY_CONTEXT_SIZE)
have_saved_context = 1;
current_event.dwThreadId = retval;
}
else
{
- printf_filtered ("Invalid selector 0x%lx.\n",sel);
+ DWORD err = GetLastError ();
+ if (err == ERROR_NOT_SUPPORTED)
+ printf_filtered ("Function not supported\n");
+ else
+ printf_filtered ("Invalid selector 0x%lx.\n",sel);
return 0;
}
}
}
}
-static struct cmd_list_element *info_w32_cmdlist = NULL;
-
-static void
-info_w32_command (char *args, int from_tty)
-{
- help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
-}
-
-
#define DEBUG_EXCEPTION_SIMPLE(x) if (debug_exceptions) \
- printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
- (DWORD) 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)
ourstatus->kind = TARGET_WAITKIND_STOPPED;
- /* Record the context of the current thread */
+ /* Record the context of the current thread. */
th = thread_rec (current_event.dwThreadId, -1);
switch (code)
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
#ifdef __CYGWIN__
{
- /* See if the access violation happened within the cygwin DLL itself. Cygwin uses
- a kind of exception handling to deal with passed-in invalid addresses. gdb
- should not treat these as real SEGVs since they will be silently handled by
- cygwin. A real SEGV will (theoretically) be caught by cygwin later in the process
- and will be sent as a cygwin-specific-signal. So, ignore SEGVs if they show up
- within the text segment of the DLL itself. */
+ /* See if the access violation happened within the cygwin DLL
+ itself. Cygwin uses a kind of exception handling to deal
+ with passed-in invalid addresses. gdb should not treat
+ these as real SEGVs since they will be silently handled by
+ cygwin. A real SEGV will (theoretically) be caught by
+ cygwin later in the process and will be sent as a
+ cygwin-specific-signal. So, ignore SEGVs if they show up
+ within the text segment of the DLL itself. */
char *fn;
- bfd_vma addr = (bfd_vma) (uintptr_t) current_event.u.Exception.
- ExceptionRecord.ExceptionAddress;
- if ((!cygwin_exceptions && (addr >= cygwin_load_start && addr < cygwin_load_end))
+ CORE_ADDR addr = (CORE_ADDR) (uintptr_t)
+ current_event.u.Exception.ExceptionRecord.ExceptionAddress;
+
+ if ((!cygwin_exceptions && (addr >= cygwin_load_start
+ && addr < cygwin_load_end))
|| (find_pc_partial_function (addr, &fn, NULL, NULL)
- && strncmp (fn, "KERNEL32!IsBad", strlen ("KERNEL32!IsBad")) == 0))
+ && strncmp (fn, "KERNEL32!IsBad",
+ strlen ("KERNEL32!IsBad")) == 0))
return 0;
}
#endif
ourstatus->value.sig = TARGET_SIGNAL_ILL;
break;
default:
- /* Treat unhandled first chance exceptions specially. */
+ /* Treat unhandled first chance exceptions specially. */
if (current_event.u.Exception.dwFirstChance)
return -1;
- printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
- current_event.u.Exception.ExceptionRecord.ExceptionCode,
- (DWORD) 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;
}
}
/* Resume all artificially suspended threads if we are continuing
- execution */
+ execution. */
static BOOL
-win32_continue (DWORD continue_status, int id)
+windows_continue (DWORD continue_status, int id)
{
int i;
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"));
open_process_used = 1;
else
{
- error (_("OpenProcess call failed, GetLastError = %lud\n"),
+ error (_("OpenProcess call failed, GetLastError = %lud"),
GetLastError ());
/* We can not debug anything in that case. */
}
main_thread_id = current_event.dwThreadId;
- current_thread = win32_add_thread (main_thread_id,
- current_event.u.CreateThread.hThread);
+ current_thread = windows_add_thread (
+ ptid_build (current_event.dwProcessId, 0,
+ current_event.dwThreadId),
+ current_event.u.CreateThread.hThread,
+ current_event.u.CreateThread.lpThreadLocalBase);
return main_thread_id;
}
static void
-win32_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;
- int pid = PIDGET (ptid);
+ /* A specific PTID means `step only this thread id'. */
+ int resume_all = ptid_equal (ptid, minus_one_ptid);
+
+ /* If we're continuing all threads, it's the current inferior that
+ should be handled specially. */
+ if (resume_all)
+ ptid = inferior_ptid;
if (sig != TARGET_SIGNAL_0)
{
for (i = 0; xlate[i].them != -1; i++)
if (xlate[i].us == sig)
{
- current_event.u.Exception.ExceptionRecord.ExceptionCode =
- xlate[i].them;
+ current_event.u.Exception.ExceptionRecord.ExceptionCode
+ = xlate[i].them;
continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
}
last_sig = TARGET_SIGNAL_0;
- DEBUG_EXEC (("gdb: win32_resume (pid=%d, step=%d, sig=%d);\n",
- pid, step, sig));
+ DEBUG_EXEC (("gdb: windows_resume (pid=%d, tid=%ld, step=%d, sig=%d);\n",
+ ptid_get_pid (ptid), ptid_get_tid (ptid), step, sig));
- /* Get context for currently selected thread */
- th = thread_rec (PIDGET (inferior_ptid), FALSE);
+ /* Get context for currently selected thread. */
+ th = thread_rec (ptid_get_tid (inferior_ptid), FALSE);
if (th)
{
if (step)
{
- /* Single step by setting t bit */
- win32_fetch_inferior_registers (get_current_regcache (),
- gdbarch_ps_regnum (current_gdbarch));
+ /* Single step by setting t bit. */
+ 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;
}
}
/* Allow continuing with the same signal that interrupted us.
- Otherwise complain. */
+ Otherwise complain. */
+
+ if (resume_all)
+ windows_continue (continue_status, -1);
+ else
+ 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;
- win32_continue (continue_status, pid);
+ /* 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_win32_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;
thread_info *th;
static thread_info dummy_thread_info;
int retval = 0;
- ptid_t ptid = {-1};
last_sig = TARGET_SIGNAL_0;
"CREATE_THREAD_DEBUG_EVENT"));
if (saw_create != 1)
{
- if (!saw_create && attach_flag)
+ struct inferior *inf;
+ inf = find_inferior_pid (current_event.dwProcessId);
+ if (!saw_create && inf->attach_flag)
{
/* Kludge around a Windows bug where first event is a create
thread event. Caused when attached process does not have
- a main thread. */
- retval = ourstatus->value.related_pid = fake_create_process ();
- if (retval)
- saw_create++;
+ a main thread. */
+ retval = fake_create_process ();
+ if (retval)
+ saw_create++;
}
break;
}
- /* Record the existence of this thread */
- th = win32_add_thread (current_event.dwThreadId,
- current_event.u.CreateThread.hThread);
+ /* Record the existence of this thread. */
retval = current_event.dwThreadId;
+ th = windows_add_thread (ptid_build (current_event.dwProcessId, 0,
+ current_event.dwThreadId),
+ current_event.u.CreateThread.hThread,
+ current_event.u.CreateThread.lpThreadLocalBase);
+
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"));
+
if (current_event.dwThreadId != main_thread_id)
{
- win32_delete_thread (current_event.dwThreadId);
+ windows_delete_thread (ptid_build (current_event.dwProcessId, 0,
+ current_event.dwThreadId));
th = &dummy_thread_info;
}
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)
- win32_delete_thread (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 = win32_add_thread (main_thread_id,
- current_event.u.CreateProcessInfo.hThread);
- retval = ourstatus->value.related_pid = 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.u.CreateProcessInfo.lpThreadLocalBase);
+ 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",
+ case OUTPUT_DEBUG_STRING_EVENT: /* Message from the kernel. */
+ 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)
- win32_resume (ptid, 0, 1);
+ windows_resume (ops, minus_one_ptid, 0, 1);
else
- CHECK (win32_continue (continue_status, -1));
+ CHECK (windows_continue (continue_status, -1));
}
else
{
- inferior_ptid = pid_to_ptid (retval);
+ inferior_ptid = ptid_build (current_event.dwProcessId, 0,
+ retval);
current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE);
}
return retval;
}
-/* Wait for interesting events to occur in the target process. */
+/* Wait for interesting events to occur in the target process. */
static ptid_t
-win32_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+windows_wait (struct target_ops *ops,
+ ptid_t ptid, struct target_waitstatus *ourstatus, int options)
{
- int pid = PIDGET (ptid);
+ int pid = -1;
target_terminal_ours ();
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. */
+ isn't necessarily what you think it is. */
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_win32_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 pid_to_ptid (retval);
+ return ptid_build (current_event.dwProcessId, 0, retval);
else
{
int detach = 0;
detach = deprecated_ui_loop_hook (0);
if (detach)
- win32_kill_inferior ();
+ windows_kill_inferior (ops);
}
}
}
static void
-do_initial_win32_stuff (DWORD pid)
+do_initial_windows_stuff (struct target_ops *ops, DWORD pid, int attaching)
{
extern int stop_after_trap;
int i;
+ struct inferior *inf;
+ struct thread_info *tp;
last_sig = TARGET_SIGNAL_0;
event_count = 0;
#endif
current_event.dwProcessId = pid;
memset (¤t_event, 0, sizeof (current_event));
- push_target (&win32_ops);
+ push_target (ops);
disable_breakpoints_in_shlibs ();
- win32_clear_solib ();
+ windows_clear_solib ();
clear_proceed_status ();
init_wait_for_inferior ();
+ inf = current_inferior ();
+ inferior_appeared (inf, pid);
+ inf->attach_flag = attaching;
+
+ /* Make the new process the current inferior, so terminal handling
+ can rely on it. When attaching, we don't know about any thread
+ id here, but that's OK --- nothing should be referencing the
+ current thread until we report an event out of windows_wait. */
+ inferior_ptid = pid_to_ptid (pid);
+
terminal_init_inferior_with_pgrp (pid);
target_terminal_inferior ();
+ windows_initialization_done = 0;
+ inf->control.stop_soon = STOP_QUIETLY;
while (1)
{
stop_after_trap = 1;
- wait_for_inferior (0);
- if (stop_signal != TARGET_SIGNAL_TRAP)
- resume (0, stop_signal);
+ wait_for_inferior ();
+ tp = inferior_thread ();
+ if (tp->suspend.stop_signal != TARGET_SIGNAL_TRAP)
+ resume (0, tp->suspend.stop_signal);
else
break;
}
+
+ windows_initialization_done = 1;
+ inf->control.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 (*DebugSetProcessKillOnExit)(BOOL);
-static BOOL WINAPI (*DebugActiveProcessStop)(DWORD);
-
-static int
-has_detach_ability (void)
-{
- static HMODULE kernel32 = NULL;
-
- if (!kernel32)
- kernel32 = LoadLibrary ("kernel32.dll");
- if (kernel32)
- {
- if (!DebugSetProcessKillOnExit)
- DebugSetProcessKillOnExit = GetProcAddress (kernel32,
- "DebugSetProcessKillOnExit");
- if (!DebugActiveProcessStop)
- DebugActiveProcessStop = GetProcAddress (kernel32,
- "DebugActiveProcessStop");
- if (DebugSetProcessKillOnExit && 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.
This code is copied from the Cygwin source code and rearranged to allow
dynamically loading of the needed symbols from advapi32 which is only
- available on NT/2K/XP. */
+ available on NT/2K/XP. */
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 = GetProcAddress (advapi32, "OpenProcessToken");
- if (!LookupPrivilegeValue)
- LookupPrivilegeValue = GetProcAddress (advapi32,
- "LookupPrivilegeValueA");
- if (!AdjustTokenPrivileges)
- AdjustTokenPrivileges = 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 0
/* Disabled, otherwise every `attach' in an unprivileged user session
would raise the "Failed to get SE_DEBUG_NAME privilege" warning in
- win32_attach(). */
+ windows_attach(). */
/* AdjustTokenPrivileges returns TRUE even if the privilege could not
- be enabled. GetLastError () returns an correct error code, though. */
+ be enabled. GetLastError () returns an correct error code, though. */
if (enable && GetLastError () == ERROR_NOT_ALL_ASSIGNED)
goto out;
#endif
/* Attach to process PID, then initialize for debugging it. */
static void
-win32_attach (char *args, int from_tty)
+windows_attach (struct target_ops *ops, char *args, int from_tty)
{
BOOL ok;
DWORD pid;
- if (!args)
- error_no_arg (_("process-id to attach"));
+ pid = parse_pid_to_attach (args);
if (set_process_privilege (SE_DEBUG_NAME, TRUE) < 0)
{
printf_unfiltered ("Warning: Failed to get SE_DEBUG_NAME privilege\n");
- printf_unfiltered ("This can cause attach to fail on Windows NT/2K/XP\n");
+ printf_unfiltered ("This can cause attach to "
+ "fail on Windows NT/2K/XP\n");
}
- pid = strtoul (args, 0, 0); /* Windows pid */
-
- win32_init_thread_list ();
+ windows_init_thread_list ();
ok = DebugActiveProcess (pid);
saw_create = 0;
#ifdef __CYGWIN__
if (!ok)
{
- /* Try fall back to Cygwin pid */
+ /* Try fall back to Cygwin pid. */
pid = cygwin_internal (CW_CYGWIN_PID_TO_WINPID, pid);
if (pid > 0)
if (!ok)
error (_("Can't attach to process."));
- if (has_detach_ability ())
- DebugSetProcessKillOnExit (FALSE);
-
- attach_flag = 1;
+ DebugSetProcessKillOnExit (FALSE);
if (from_tty)
{
gdb_flush (gdb_stdout);
}
- do_initial_win32_stuff (pid);
+ do_initial_windows_stuff (ops, pid, 1);
target_terminal_ours ();
}
static void
-win32_detach (char *args, int from_tty)
+windows_detach (struct target_ops *ops, char *args, int from_tty)
{
int detached = 1;
- if (has_detach_ability ())
- {
- ptid_t ptid = {-1};
- win32_resume (ptid, 0, TARGET_SIGNAL_0);
+ ptid_t ptid = {-1};
+ windows_resume (ops, ptid, 0, TARGET_SIGNAL_0);
- if (!DebugActiveProcessStop (current_event.dwProcessId))
- {
- error (_("Can't detach process %lu (error %lu)"),
- current_event.dwProcessId, GetLastError ());
- detached = 0;
- }
- 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);
current_event.dwProcessId);
gdb_flush (gdb_stdout);
}
+
inferior_ptid = null_ptid;
- unpush_target (&win32_ops);
+ detach_inferior (current_event.dwProcessId);
+
+ unpush_target (ops);
}
static char *
-win32_pid_to_exec_file (int pid)
+windows_pid_to_exec_file (int pid)
{
- static char path[MAX_PATH + 1];
-
+ static char path[__PMAX];
#ifdef __CYGWIN__
- /* Try to find exe name as symlink target of /proc/<pid>/exe */
+ /* Try to find exe name as symlink target of /proc/<pid>/exe. */
int nchars;
char procexe[sizeof ("/proc/4294967295/exe")];
- sprintf (procexe, "/proc/%lu/exe", current_event.dwProcessId);
+ sprintf (procexe, "/proc/%u/exe", pid);
nchars = readlink (procexe, path, sizeof(path));
if (nchars > 0 && nchars < sizeof (path))
{
#endif
/* If we get here then either Cygwin is hosed, this isn't a Cygwin version
- of gdb, or we're trying to debug a non-Cygwin windows executable. */
+ of gdb, or we're trying to debug a non-Cygwin windows executable. */
if (!get_module_name (0, path))
path[0] = '\0';
/* Print status information about what we're accessing. */
static void
-win32_files_info (struct target_ops *ignore)
+windows_files_info (struct target_ops *ignore)
{
+ struct inferior *inf = current_inferior ();
+
printf_unfiltered ("\tUsing the running image of %s %s.\n",
- attach_flag ? "attached" : "child", target_pid_to_str (inferior_ptid));
+ inf->attach_flag ? "attached" : "child",
+ target_pid_to_str (inferior_ptid));
}
static void
-win32_open (char *arg, int from_tty)
+windows_open (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_ptid to its pid.
+/* Modify CreateProcess parameters for use of a new separate console.
+ Parameters are:
+ *FLAGS: DWORD parameter for general process creation flags.
+ *SI: STARTUPINFO structure, for which the console window size and
+ console buffer size is filled in if GDB is running in a console.
+ to create the new console.
+ The size of the used font is not available on all versions of
+ Windows OS. Furthermore, the current font might not be the default
+ font, but this is still better than before.
+ If the windows and buffer sizes are computed,
+ SI->DWFLAGS is changed so that this information is used
+ by CreateProcess function. */
+
+static void
+windows_set_console_info (STARTUPINFO *si, DWORD *flags)
+{
+ HANDLE hconsole = CreateFile ("CONOUT$", GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
+
+ if (hconsole != INVALID_HANDLE_VALUE)
+ {
+ CONSOLE_SCREEN_BUFFER_INFO sbinfo;
+ COORD font_size;
+ CONSOLE_FONT_INFO cfi;
+
+ GetCurrentConsoleFont (hconsole, FALSE, &cfi);
+ font_size = GetConsoleFontSize (hconsole, cfi.nFont);
+ GetConsoleScreenBufferInfo(hconsole, &sbinfo);
+ si->dwXSize = sbinfo.srWindow.Right - sbinfo.srWindow.Left + 1;
+ si->dwYSize = sbinfo.srWindow.Bottom - sbinfo.srWindow.Top + 1;
+ if (font_size.X)
+ si->dwXSize *= font_size.X;
+ else
+ si->dwXSize *= 8;
+ if (font_size.Y)
+ si->dwYSize *= font_size.Y;
+ else
+ si->dwYSize *= 12;
+ si->dwXCountChars = sbinfo.dwSize.X;
+ si->dwYCountChars = sbinfo.dwSize.Y;
+ si->dwFlags |= STARTF_USESIZE | STARTF_USECOUNTCHARS;
+ }
+ *flags |= CREATE_NEW_CONSOLE;
+}
+
+/* Start an inferior windows child process and sets inferior_ptid 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
-win32_create_inferior (char *exec_file, char *allargs, char **in_env,
- int from_tty)
+windows_create_inferior (struct target_ops *ops, char *exec_file,
+ char *allargs, char **in_env, int from_tty)
{
STARTUPINFO si;
- PROCESS_INFORMATION pi;
- BOOL ret;
- DWORD flags;
- char *args;
- char real_path[MAXPATHLEN];
- char *toexec;
- char shell[MAX_PATH + 1]; /* Path to shell */
+#ifdef __CYGWIN__
+ cygwin_buf_t real_path[__PMAX];
+ cygwin_buf_t shell[__PMAX]; /* Path to shell */
const char *sh;
+ cygwin_buf_t *toexec;
+ cygwin_buf_t *cygallargs;
+ cygwin_buf_t *args;
+ size_t len;
int tty;
int ostdin, ostdout, ostderr;
+#else
+ char real_path[__PMAX];
+ char shell[__PMAX]; /* Path to shell */
+ char *toexec;
+ char *args;
+ HANDLE tty;
+#endif
+ PROCESS_INFORMATION pi;
+ BOOL ret;
+ DWORD flags = 0;
const char *inferior_io_terminal = get_inferior_io_terminal ();
if (!exec_file)
memset (&si, 0, sizeof (si));
si.cb = sizeof (si);
+ if (new_group)
+ flags |= CREATE_NEW_PROCESS_GROUP;
+
+ if (new_console)
+ windows_set_console_info (&si, &flags);
+
#ifdef __CYGWIN__
if (!useshell)
{
- flags = DEBUG_ONLY_THIS_PROCESS;
- cygwin_conv_to_win32_path (exec_file, real_path);
+ flags |= DEBUG_ONLY_THIS_PROCESS;
+ if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, exec_file, real_path,
+ __PMAX * sizeof (cygwin_buf_t)) < 0)
+ error (_("Error starting executable: %d"), errno);
toexec = real_path;
+#ifdef __USEWIDE
+ len = mbstowcs (NULL, allargs, 0) + 1;
+ if (len == (size_t) -1)
+ error (_("Error starting executable: %d"), errno);
+ cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t));
+ mbstowcs (cygallargs, allargs, len);
+#else
+ cygallargs = allargs;
+#endif
}
else
{
- char *newallargs;
sh = getenv ("SHELL");
if (!sh)
sh = "/bin/sh";
- cygwin_conv_to_win32_path (sh, shell);
- newallargs = alloca (sizeof (" -c 'exec '") + strlen (exec_file)
- + strlen (allargs) + 2);
- sprintf (newallargs, " -c 'exec %s %s'", exec_file, allargs);
- allargs = newallargs;
- toexec = shell;
- flags = DEBUG_PROCESS;
- }
+ if (cygwin_conv_path (CCP_POSIX_TO_WIN_W, sh, shell, __PMAX) < 0)
+ error (_("Error starting executable via shell: %d"), errno);
+#ifdef __USEWIDE
+ len = sizeof (L" -c 'exec '") + mbstowcs (NULL, exec_file, 0)
+ + mbstowcs (NULL, allargs, 0) + 2;
+ cygallargs = (wchar_t *) alloca (len * sizeof (wchar_t));
+ swprintf (cygallargs, len, L" -c 'exec %s %s'", exec_file, allargs);
#else
- toexec = exec_file;
- flags = DEBUG_ONLY_THIS_PROCESS;
+ cygallargs = (char *)
+ alloca (sizeof (" -c 'exec '") + strlen (exec_file)
+ + strlen (allargs) + 2);
+ sprintf (cygallargs, " -c 'exec %s %s'", exec_file, allargs);
#endif
+ toexec = shell;
+ flags |= DEBUG_PROCESS;
+ }
- if (new_group)
- flags |= CREATE_NEW_PROCESS_GROUP;
-
- if (new_console)
- flags |= CREATE_NEW_CONSOLE;
-
- attach_flag = 0;
-
- args = alloca (strlen (toexec) + strlen (allargs) + 2);
+#ifdef __USEWIDE
+ args = (cygwin_buf_t *) alloca ((wcslen (toexec) + wcslen (cygallargs) + 2)
+ * sizeof (wchar_t));
+ wcscpy (args, toexec);
+ wcscat (args, L" ");
+ wcscat (args, cygallargs);
+#else
+ args = (cygwin_buf_t *) alloca (strlen (toexec) + strlen (cygallargs) + 2);
strcpy (args, toexec);
strcat (args, " ");
- strcat (args, allargs);
+ strcat (args, cygallargs);
+#endif
-#ifdef __CYGWIN__
/* Prepare the environment vars for CreateProcess. */
cygwin_internal (CW_SYNC_WINENV);
dup2 (tty, 2);
}
}
-#endif
- win32_init_thread_list ();
+ windows_init_thread_list ();
ret = CreateProcess (0,
args, /* command line */
NULL, /* Security */
NULL, /* current directory */
&si,
&pi);
-
-#ifdef __CYGWIN__
if (tty >= 0)
{
close (tty);
close (ostdout);
close (ostderr);
}
+#else
+ toexec = exec_file;
+ args = alloca (strlen (toexec) + strlen (allargs) + 2);
+ strcpy (args, toexec);
+ strcat (args, " ");
+ strcat (args, allargs);
+
+ flags |= DEBUG_ONLY_THIS_PROCESS;
+
+ 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;
+ }
+ }
+
+ windows_init_thread_list ();
+ ret = CreateProcessA (0,
+ args, /* command line */
+ NULL, /* Security */
+ NULL, /* thread */
+ TRUE, /* inherit handles */
+ flags, /* start flags */
+ NULL, /* environment */
+ NULL, /* current directory */
+ &si,
+ &pi);
+ if (tty != INVALID_HANDLE_VALUE)
+ CloseHandle (tty);
#endif
if (!ret)
else
saw_create = 0;
- do_initial_win32_stuff (pi.dwProcessId);
+ do_initial_windows_stuff (ops, pi.dwProcessId, 0);
- /* win32_continue (DBG_CONTINUE, -1); */
+ /* windows_continue (DBG_CONTINUE, -1); */
}
static void
-win32_mourn_inferior (void)
+windows_mourn_inferior (struct target_ops *ops)
{
- (void) win32_continue (DBG_CONTINUE, -1);
+ (void) windows_continue (DBG_CONTINUE, -1);
i386_cleanup_dregs();
if (open_process_used)
{
CHECK (CloseHandle (current_process_handle));
open_process_used = 0;
}
- unpush_target (&win32_ops);
+ unpush_target (ops);
generic_mourn_inferior ();
}
/* Send a SIGINT to the process group. This acts just like the user typed a
- ^C on the controlling terminal. */
+ ^C on the controlling terminal. */
static void
-win32_stop (void)
+windows_stop (ptid_t ptid)
{
DEBUG_EVENTS (("gdb: GenerateConsoleCtrlEvent (CTRLC_EVENT, 0)\n"));
CHECK (GenerateConsoleCtrlEvent (CTRL_C_EVENT, current_event.dwProcessId));
}
static int
-win32_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len,
+windows_xfer_memory (CORE_ADDR memaddr, gdb_byte *our, int len,
int write, struct mem_attrib *mem,
struct target_ops *target)
{
- DWORD done = 0;
+ SIZE_T done = 0;
if (write)
{
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
-win32_kill_inferior (void)
+windows_kill_inferior (struct target_ops *ops)
{
CHECK (TerminateProcess (current_process_handle, 0));
for (;;)
{
- if (!win32_continue (DBG_CONTINUE, -1))
+ if (!windows_continue (DBG_CONTINUE, -1))
break;
if (!WaitForDebugEvent (¤t_event, INFINITE))
break;
break;
}
- target_mourn_inferior (); /* or just win32_mourn_inferior? */
+ target_mourn_inferior (); /* Or just windows_mourn_inferior? */
}
static void
-win32_prepare_to_store (struct regcache *regcache)
+windows_prepare_to_store (struct regcache *regcache)
{
- /* Do nothing, since we can store individual regs */
+ /* Do nothing, since we can store individual regs. */
}
static int
-win32_can_run (void)
+windows_can_run (void)
{
return 1;
}
static void
-win32_close (int x)
+windows_close (int x)
{
- DEBUG_EVENTS (("gdb: win32_close, inferior_ptid=%d\n",
+ DEBUG_EVENTS (("gdb: windows_close, inferior_ptid=%d\n",
PIDGET (inferior_ptid)));
}
-/* Convert pid to printable format. */
+/* Convert pid to printable format. */
static char *
-win32_pid_to_str (ptid_t ptid)
+windows_pid_to_str (struct target_ops *ops, ptid_t ptid)
{
static char buf[80];
- int pid = PIDGET (ptid);
- if ((DWORD) pid == current_event.dwProcessId)
- sprintf (buf, "process %d", pid);
- else
- sprintf (buf, "Thread %ld.0x%x", current_event.dwProcessId, pid);
- return buf;
+ if (ptid_get_tid (ptid) != 0)
+ {
+ snprintf (buf, sizeof (buf), "Thread %d.0x%lx",
+ ptid_get_pid (ptid), ptid_get_tid (ptid));
+ return buf;
+ }
+
+ return normal_pid_to_str (ptid);
}
static LONGEST
-win32_xfer_shared_libraries (struct target_ops *ops,
+windows_xfer_shared_libraries (struct target_ops *ops,
enum target_object object, const char *annex,
gdb_byte *readbuf, const gdb_byte *writebuf,
ULONGEST offset, LONGEST len)
obstack_init (&obstack);
obstack_grow_str (&obstack, "<library-list>\n");
for (so = solib_start.next; so; so = so->next)
- win32_xfer_shared_library (so->so_name, so->lm_info->load_addr, &obstack);
+ windows_xfer_shared_library (so->so_name, (CORE_ADDR)
+ (uintptr_t) so->lm_info->load_addr,
+ target_gdbarch, &obstack);
obstack_grow_str0 (&obstack, "</library-list>\n");
buf = obstack_finish (&obstack);
}
static LONGEST
-win32_xfer_partial (struct target_ops *ops, enum target_object object,
+windows_xfer_partial (struct target_ops *ops, enum target_object object,
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
return -1;
case TARGET_OBJECT_LIBRARIES:
- return win32_xfer_shared_libraries (ops, object, annex, readbuf,
+ return windows_xfer_shared_libraries (ops, object, annex, readbuf,
writebuf, offset, len);
default:
}
}
+/* Provide thread local base, i.e. Thread Information Block address.
+ Returns 1 if ptid is found and sets *ADDR to thread_local_base. */
+
+static int
+windows_get_tib_address (ptid_t ptid, CORE_ADDR *addr)
+{
+ thread_info *th;
+
+ th = thread_rec (ptid_get_tid (ptid), 0);
+ if (th == NULL)
+ return 0;
+
+ if (addr != NULL)
+ *addr = th->thread_local_base;
+
+ return 1;
+}
+
+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_win32_ops (void)
-{
- win32_ops.to_shortname = "child";
- win32_ops.to_longname = "Win32 child process";
- win32_ops.to_doc = "Win32 child process (started by the \"run\" command).";
- win32_ops.to_open = win32_open;
- win32_ops.to_close = win32_close;
- win32_ops.to_attach = win32_attach;
- win32_ops.to_detach = win32_detach;
- win32_ops.to_resume = win32_resume;
- win32_ops.to_wait = win32_wait;
- win32_ops.to_fetch_registers = win32_fetch_inferior_registers;
- win32_ops.to_store_registers = win32_store_inferior_registers;
- win32_ops.to_prepare_to_store = win32_prepare_to_store;
- win32_ops.deprecated_xfer_memory = win32_xfer_memory;
- win32_ops.to_xfer_partial = win32_xfer_partial;
- win32_ops.to_files_info = win32_files_info;
- win32_ops.to_insert_breakpoint = memory_insert_breakpoint;
- win32_ops.to_remove_breakpoint = memory_remove_breakpoint;
- win32_ops.to_terminal_init = terminal_init_inferior;
- win32_ops.to_terminal_inferior = terminal_inferior;
- win32_ops.to_terminal_ours_for_output = terminal_ours_for_output;
- win32_ops.to_terminal_ours = terminal_ours;
- win32_ops.to_terminal_save_ours = terminal_save_ours;
- win32_ops.to_terminal_info = child_terminal_info;
- win32_ops.to_kill = win32_kill_inferior;
- win32_ops.to_create_inferior = win32_create_inferior;
- win32_ops.to_mourn_inferior = win32_mourn_inferior;
- win32_ops.to_can_run = win32_can_run;
- win32_ops.to_thread_alive = win32_win32_thread_alive;
- win32_ops.to_pid_to_str = win32_pid_to_str;
- win32_ops.to_stop = win32_stop;
- win32_ops.to_stratum = process_stratum;
- win32_ops.to_has_all_memory = 1;
- win32_ops.to_has_memory = 1;
- win32_ops.to_has_stack = 1;
- win32_ops.to_has_registers = 1;
- win32_ops.to_has_execution = 1;
- win32_ops.to_magic = OPS_MAGIC;
- win32_ops.to_pid_to_exec_file = win32_pid_to_exec_file;
+init_windows_ops (void)
+{
+ windows_ops.to_shortname = "child";
+ windows_ops.to_longname = "Win32 child process";
+ windows_ops.to_doc = "Win32 child process (started by the \"run\" command).";
+ windows_ops.to_open = windows_open;
+ windows_ops.to_close = windows_close;
+ windows_ops.to_attach = windows_attach;
+ windows_ops.to_attach_no_wait = 1;
+ windows_ops.to_detach = windows_detach;
+ windows_ops.to_resume = windows_resume;
+ windows_ops.to_wait = windows_wait;
+ windows_ops.to_fetch_registers = windows_fetch_inferior_registers;
+ windows_ops.to_store_registers = windows_store_inferior_registers;
+ windows_ops.to_prepare_to_store = windows_prepare_to_store;
+ windows_ops.deprecated_xfer_memory = windows_xfer_memory;
+ windows_ops.to_xfer_partial = windows_xfer_partial;
+ windows_ops.to_files_info = windows_files_info;
+ windows_ops.to_insert_breakpoint = memory_insert_breakpoint;
+ windows_ops.to_remove_breakpoint = memory_remove_breakpoint;
+ windows_ops.to_terminal_init = terminal_init_inferior;
+ windows_ops.to_terminal_inferior = terminal_inferior;
+ windows_ops.to_terminal_ours_for_output = terminal_ours_for_output;
+ windows_ops.to_terminal_ours = terminal_ours;
+ windows_ops.to_terminal_save_ours = terminal_save_ours;
+ windows_ops.to_terminal_info = child_terminal_info;
+ windows_ops.to_kill = windows_kill_inferior;
+ windows_ops.to_create_inferior = windows_create_inferior;
+ windows_ops.to_mourn_inferior = windows_mourn_inferior;
+ windows_ops.to_can_run = windows_can_run;
+ windows_ops.to_thread_alive = windows_thread_alive;
+ 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 = 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;
+ windows_ops.to_get_tib_address = windows_get_tib_address;
+
+ 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;
}
static void
-set_win32_aliases (char *argv0)
+set_windows_aliases (char *argv0)
{
add_info_alias ("dll", "sharedlibrary", 1);
}
void
-_initialize_win32_nat (void)
+_initialize_windows_nat (void)
{
struct cmd_list_element *c;
- init_win32_ops ();
+ init_windows_ops ();
+
+#ifdef __CYGWIN__
+ cygwin_internal (CW_SET_DOS_FILE_WARNING, 0);
+#endif
c = add_com ("dll-symbols", class_files, dll_symbol_command,
_("Load dll library symbols from FILE."));
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."), _("\
NULL, /* FIXME: i18n: */
&setlist, &showlist);
- add_setshow_boolean_cmd ("cygwin-exceptions", class_support, &cygwin_exceptions, _("\
+ add_setshow_boolean_cmd ("cygwin-exceptions", class_support,
+ &cygwin_exceptions, _("\
Break when an exception is detected in the Cygwin DLL itself."), _("\
Show whether gdb breaks on exceptions in the Cygwin DLL itself."), NULL,
NULL,
NULL, /* FIXME: i18n: */
&setlist, &showlist);
- add_prefix_cmd ("w32", class_info, info_w32_command,
- _("Print information specific to Win32 debugging."),
- &info_w32_cmdlist, "info w32 ", 0, &infolist);
+ init_w32_command_list ();
add_cmd ("selector", class_info, display_selectors,
_("Display selectors infos."),
&info_w32_cmdlist);
- add_target (&win32_ops);
- deprecated_init_ui_hook = set_win32_aliases;
+ add_target (&windows_ops);
+ deprecated_init_ui_hook = set_windows_aliases;
}
/* Hardware watchpoint support, adapted from go32-nat.c code. */
/* 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 win32_continue is called. */
-void
+ actually set up when windows_continue is called. */
+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 win32_wait. */
-void
-cygwin_set_dr7 (unsigned val)
+ will be actually set up in windows_wait. */
+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 "pid" is alive
+/* Determine if the thread referenced by "ptid" 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. */
+ it means that the thread has died. Otherwise it is assumed to be alive. */
static int
-win32_win32_thread_alive (ptid_t ptid)
+windows_thread_alive (struct target_ops *ops, ptid_t ptid)
{
- int pid = PIDGET (ptid);
+ int tid;
- return WaitForSingleObject (thread_rec (pid, FALSE)->h, 0) == WAIT_OBJECT_0 ?
- FALSE : TRUE;
+ gdb_assert (ptid_get_tid (ptid) != 0);
+ tid = ptid_get_tid (ptid);
+
+ return WaitForSingleObject (thread_rec (tid, FALSE)->h, 0) == WAIT_OBJECT_0
+ ? FALSE : TRUE;
}
void
sizeof ("/gdb.ini"));
strcpy (oldini, homedir);
p = strchr (oldini, '\0');
- if (p > oldini && p[-1] != '/')
+ if (p > oldini && !IS_DIR_SEPARATOR (p[-1]))
*p++ = '/';
strcpy (p, "gdb.ini");
if (access (oldini, 0) == 0)
}
}
+/* 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;
+}
+
+#ifdef __USEWIDE
+static DWORD WINAPI
+bad_GetModuleFileNameExW (HANDLE w, HMODULE x, LPWSTR y, DWORD z)
+{
+ return 0;
+}
+#else
+static DWORD WINAPI
+bad_GetModuleFileNameExA (HANDLE w, HMODULE x, LPSTR y, DWORD z)
+{
+ return 0;
+}
+#endif
+
+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;
+}
+
+static BOOL WINAPI
+bad_GetCurrentConsoleFont (HANDLE w, BOOL bMaxWindow, CONSOLE_FONT_INFO *f)
+{
+ f->nFont = 0;
+ return 1;
+}
+static COORD WINAPI
+bad_GetConsoleFontSize (HANDLE w, DWORD nFont)
+{
+ COORD size;
+ size.X = 8;
+ size.Y = 12;
+ return size;
+}
+
+/* Load any functions which may not be available in ancient versions
+ of Windows. */
void
-_initialize_psapi (void)
+_initialize_loadable (void)
{
- /* Load optional functions used for retrieving filename information
- associated with the currently debugged process or its dlls. */
- if (!psapi_loaded)
+ HMODULE hm = NULL;
+
+ hm = LoadLibrary ("kernel32.dll");
+ if (hm)
{
- HMODULE psapi_module_handle;
+ DebugActiveProcessStop = (void *)
+ GetProcAddress (hm, "DebugActiveProcessStop");
+ DebugBreakProcess = (void *)
+ GetProcAddress (hm, "DebugBreakProcess");
+ DebugSetProcessKillOnExit = (void *)
+ GetProcAddress (hm, "DebugSetProcessKillOnExit");
+ GetConsoleFontSize = (void *)
+ GetProcAddress (hm, "GetConsoleFontSize");
+ GetCurrentConsoleFont = (void *)
+ GetProcAddress (hm, "GetCurrentConsoleFont");
+ }
- psapi_loaded = -1;
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in kernel32.dll. */
+ if (!DebugBreakProcess)
+ DebugBreakProcess = bad_DebugBreakProcess;
+ if (!DebugActiveProcessStop || !DebugSetProcessKillOnExit)
+ {
+ DebugActiveProcessStop = bad_DebugActiveProcessStop;
+ DebugSetProcessKillOnExit = bad_DebugSetProcessKillOnExit;
+ }
+ if (!GetConsoleFontSize)
+ GetConsoleFontSize = bad_GetConsoleFontSize;
+ if (!GetCurrentConsoleFont)
+ GetCurrentConsoleFont = bad_GetCurrentConsoleFont;
- 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;
- }
+ /* Load optional functions used for retrieving filename information
+ associated with the currently debugged process or its dlls. */
+ hm = LoadLibrary ("psapi.dll");
+ if (hm)
+ {
+ EnumProcessModules = (void *)
+ GetProcAddress (hm, "EnumProcessModules");
+ GetModuleInformation = (void *)
+ GetProcAddress (hm, "GetModuleInformation");
+ GetModuleFileNameEx = (void *)
+ GetProcAddress (hm, GetModuleFileNameEx_name);
+ }
+
+ if (!EnumProcessModules || !GetModuleInformation || !GetModuleFileNameEx)
+ {
+ /* Set variables to dummy versions of these processes if the function
+ wasn't found in psapi.dll. */
+ EnumProcessModules = bad_EnumProcessModules;
+ GetModuleInformation = bad_GetModuleInformation;
+ GetModuleFileNameEx = bad_GetModuleFileNameEx;
+ /* 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.\n\
+Use \"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)
+ {
+ OpenProcessToken = (void *) GetProcAddress (hm, "OpenProcessToken");
+ LookupPrivilegeValueA = (void *)
+ GetProcAddress (hm, "LookupPrivilegeValueA");
+ AdjustTokenPrivileges = (void *)
+ GetProcAddress (hm, "AdjustTokenPrivileges");
+ /* Only need to set one of these since if OpenProcessToken fails nothing
+ else is needed. */
+ if (!OpenProcessToken || !LookupPrivilegeValueA
+ || !AdjustTokenPrivileges)
+ OpenProcessToken = bad_OpenProcessToken;
+ }
}
projects / external / binutils.git / blobdiff