/* Target-vector operations for controlling windows child processes, for GDB.
- Copyright (C) 1995-2014 Free Software Foundation, Inc.
+ Copyright (C) 1995-2015 Free Software Foundation, Inc.
Contributed by Cygnus Solutions, A Red Hat Company.
#include "defs.h"
#include "frame.h" /* required by inferior.h */
#include "inferior.h"
+#include "infrun.h"
#include "target.h"
-#include "exceptions.h"
#include "gdbcore.h"
#include "command.h"
#include "completer.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
-#include <stdlib.h>
#include <windows.h>
#include <imagehlp.h>
#include <psapi.h>
#include "objfiles.h"
#include "gdb_bfd.h"
#include "gdb_obstack.h"
-#include <string.h>
#include "gdbthread.h"
#include "gdbcmd.h"
#include <unistd.h>
#include "windows-tdep.h"
#include "windows-nat.h"
-#include "i386-nat.h"
+#include "x86-nat.h"
#include "complaints.h"
#include "inf-child.h"
enum
{
FLAG_TRACE_BIT = 0x100,
- CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
};
#endif
#define CONTEXT_EXTENDED_REGISTERS 0
#endif
-#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
- | CONTEXT_EXTENDED_REGISTERS
+#define CONTEXT_DEBUGGER_DR CONTEXT_FULL | CONTEXT_FLOATING_POINT \
+ | CONTEXT_SEGMENTS | CONTEXT_DEBUG_REGISTERS \
+ | CONTEXT_EXTENDED_REGISTERS
static uintptr_t dr[8];
static int debug_registers_changed;
/* Thread information structure used to track information that is
not available in gdb's thread structure. */
-typedef struct thread_info_struct
+typedef struct windows_thread_info_struct
{
- struct thread_info_struct *next;
+ struct windows_thread_info_struct *next;
DWORD id;
HANDLE h;
CORE_ADDR thread_local_base;
CONTEXT context;
STACKFRAME sf;
}
-thread_info;
+windows_thread_info;
-static thread_info thread_head;
+static windows_thread_info thread_head;
/* The process and thread handles for the above context. */
static DEBUG_EVENT current_event; /* The current debug event from
WaitForDebugEvent */
static HANDLE current_process_handle; /* Currently executing process */
-static thread_info *current_thread; /* Info on currently selected thread */
+static windows_thread_info *current_thread; /* Info on currently selected thread */
static DWORD main_thread_id; /* Thread ID of the main thread */
/* Counts of things. */
/* Find a thread record given a thread id. If GET_CONTEXT is not 0,
then also retrieve the context for this thread. If GET_CONTEXT is
negative, then don't suspend the thread. */
-static thread_info *
+static windows_thread_info *
thread_rec (DWORD id, int get_context)
{
- thread_info *th;
+ windows_thread_info *th;
for (th = &thread_head; (th = th->next) != NULL;)
if (th->id == id)
}
/* Add a thread to the thread list. */
-static thread_info *
+static windows_thread_info *
windows_add_thread (ptid_t ptid, HANDLE h, void *tlb)
{
- thread_info *th;
+ windows_thread_info *th;
DWORD id;
gdb_assert (ptid_get_tid (ptid) != 0);
if ((th = thread_rec (id, FALSE)))
return th;
- th = XCNEW (thread_info);
+ th = XCNEW (windows_thread_info);
th->id = id;
th->h = h;
th->thread_local_base = (CORE_ADDR) (uintptr_t) tlb;
static void
windows_init_thread_list (void)
{
- thread_info *th = &thread_head;
+ windows_thread_info *th = &thread_head;
DEBUG_EVENTS (("gdb: windows_init_thread_list\n"));
init_thread_list ();
while (th->next != NULL)
{
- thread_info *here = th->next;
+ windows_thread_info *here = th->next;
th->next = here->next;
xfree (here);
}
static void
windows_delete_thread (ptid_t ptid, DWORD exit_code)
{
- thread_info *th;
+ windows_thread_info *th;
DWORD id;
gdb_assert (ptid_get_tid (ptid) != 0);
if (th->next != NULL)
{
- thread_info *here = th->next;
+ windows_thread_info *here = th->next;
th->next = here->next;
xfree (here);
}
else
#endif
{
- thread_info *th = current_thread;
+ windows_thread_info *th = current_thread;
th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
CHECK (GetThreadContext (th->h, &th->context));
/* Copy dr values from that thread.
static struct so_list solib_start, *solib_end;
-/* Call symbol_file_add with stderr redirected. We don't care if there
- are errors. */
-static int
-safe_symbol_file_add_stub (void *argv)
-{
-#define p ((struct safe_symbol_file_add_args *) argv)
- 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. */
-static void
-safe_symbol_file_add_cleanup (void *p)
-{
-#define sp ((struct safe_symbol_file_add_args *)p)
- gdb_flush (gdb_stderr);
- gdb_flush (gdb_stdout);
- ui_file_delete (gdb_stderr);
- ui_file_delete (gdb_stdout);
- gdb_stderr = sp->err;
- gdb_stdout = sp->out;
-#undef sp
-}
-
-/* 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,
- int mainline, int flags)
-{
- struct safe_symbol_file_add_args p;
- struct cleanup *cleanup;
-
- cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p);
-
- p.err = gdb_stderr;
- p.out = gdb_stdout;
- gdb_flush (gdb_stderr);
- gdb_flush (gdb_stdout);
- gdb_stderr = ui_file_new ();
- gdb_stdout = ui_file_new ();
- p.name = name;
- p.from_tty = from_tty;
- p.addrs = addrs;
- p.mainline = mainline;
- p.flags = flags;
- catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR);
-
- do_cleanups (cleanup);
- return p.ret;
-}
-
static struct so_list *
windows_make_so (const char *name, LPVOID load_addr)
{
solib_end = &solib_start;
}
-/* Load DLL symbol info. */
-static void
-dll_symbol_command (char *args, int from_tty)
-{
- int n;
- dont_repeat ();
-
- if (args == NULL)
- error (_("dll-symbols requires a file name"));
-
- n = strlen (args);
- if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0)
- {
- char *newargs = (char *) alloca (n + 4 + 1);
- strcpy (newargs, args);
- strcat (newargs, ".dll");
- args = newargs;
- }
-
- safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED);
-}
-
/* 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. */
&s, 1024, 0)
|| !s || !*s)
/* nothing to do */;
- else if (strncmp (s, _CYGWIN_SIGNAL_STRING,
- sizeof (_CYGWIN_SIGNAL_STRING) - 1) != 0)
+ else if (!startswith (s, _CYGWIN_SIGNAL_STRING))
{
#ifdef __CYGWIN__
- if (strncmp (s, "cYg", 3) != 0)
+ if (!startswith (s, "cYg"))
#endif
warning (("%s"), s);
}
static int
handle_exception (struct target_waitstatus *ourstatus)
{
- thread_info *th;
+ windows_thread_info *th;
DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;
ourstatus->kind = TARGET_WAITKIND_STOPPED;
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))
+ && startswith (fn, "KERNEL32!IsBad")))
return 0;
}
#endif
windows_continue (DWORD continue_status, int id, int killed)
{
int i;
- thread_info *th;
+ windows_thread_info *th;
BOOL res;
DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=0x%x, %s);\n",
windows_resume (struct target_ops *ops,
ptid_t ptid, int step, enum gdb_signal sig)
{
- thread_info *th;
+ windows_thread_info *th;
DWORD continue_status = DBG_CONTINUE;
/* A specific PTID means `step only this thread id'. */
{
BOOL debug_event;
DWORD continue_status, event_code;
- thread_info *th;
- static thread_info dummy_thread_info;
+ windows_thread_info *th;
+ static windows_thread_info dummy_thread_info;
int retval = 0;
last_sig = GDB_SIGNAL_0;
push_target (ops);
disable_breakpoints_in_shlibs ();
windows_clear_solib ();
- clear_proceed_status ();
+ clear_proceed_status (0);
init_wait_for_inferior ();
inf = current_inferior ();
current thread until we report an event out of windows_wait. */
inferior_ptid = pid_to_ptid (pid);
- child_terminal_init_with_pgrp (pid);
+ target_terminal_init ();
target_terminal_inferior ();
windows_initialization_done = 0;
wait_for_inferior ();
tp = inferior_thread ();
if (tp->suspend.stop_signal != GDB_SIGNAL_TRAP)
- resume (0, tp->suspend.stop_signal);
+ resume (tp->suspend.stop_signal);
else
break;
}
/* Attach to process PID, then initialize for debugging it. */
static void
-windows_attach (struct target_ops *ops, char *args, int from_tty)
+windows_attach (struct target_ops *ops, const char *args, int from_tty)
{
BOOL ok;
DWORD pid;
gdb_flush (gdb_stdout);
}
- i386_cleanup_dregs ();
+ x86_cleanup_dregs ();
inferior_ptid = null_ptid;
detach_inferior (current_event.dwProcessId);
windows_mourn_inferior (struct target_ops *ops)
{
(void) windows_continue (DBG_CONTINUE, -1, 0);
- i386_cleanup_dregs();
+ x86_cleanup_dregs();
if (open_process_used)
{
CHECK (CloseHandle (current_process_handle));
open_process_used = 0;
}
- generic_mourn_inferior ();
- inf_child_maybe_unpush_target (ops);
+ inf_child_mourn_inferior (ops);
}
/* Send a SIGINT to the process group. This acts just like the user typed a
writebuf, offset, len, xfered_len);
default:
- if (ops->beneath != NULL)
- return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
- readbuf, writebuf, offset, len,
- xfered_len);
- return TARGET_XFER_E_IO;
+ return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
+ readbuf, writebuf, offset, len,
+ xfered_len);
}
}
windows_get_tib_address (struct target_ops *self,
ptid_t ptid, CORE_ADDR *addr)
{
- thread_info *th;
+ windows_thread_info *th;
th = thread_rec (ptid_get_tid (ptid), 0);
if (th == NULL)
void
_initialize_windows_nat (void)
{
- struct cmd_list_element *c;
struct target_ops *t;
t = windows_target ();
- i386_use_watchpoints (t);
+ x86_use_watchpoints (t);
- i386_dr_low.set_control = cygwin_set_dr7;
- i386_dr_low.set_addr = cygwin_set_dr;
- i386_dr_low.get_addr = cygwin_get_dr;
- i386_dr_low.get_status = cygwin_get_dr6;
- i386_dr_low.get_control = cygwin_get_dr7;
+ x86_dr_low.set_control = cygwin_set_dr7;
+ x86_dr_low.set_addr = cygwin_set_dr;
+ x86_dr_low.get_addr = cygwin_get_dr;
+ x86_dr_low.get_status = cygwin_get_dr6;
+ x86_dr_low.get_control = cygwin_get_dr7;
- /* i386_dr_low.debug_register_length field is set by
- calling i386_set_debug_register_length function
+ /* x86_dr_low.debug_register_length field is set by
+ calling x86_set_debug_register_length function
in processor windows specific native file. */
add_target (t);
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."));
- set_cmd_completer (c, filename_completer);
- deprecate_cmd (c, "sharedlibrary");
-
- c = add_com ("add-shared-symbol-files", class_files, dll_symbol_command,
- _("Load dll library symbols from FILE."));
- set_cmd_completer (c, filename_completer);
- deprecate_cmd (c, "sharedlibrary");
-
- c = add_com ("assf", class_files, dll_symbol_command,
- _("Load dll library symbols from FILE."));
- set_cmd_completer (c, filename_completer);
- deprecate_cmd (c, "sharedlibrary");
-
#ifdef __CYGWIN__
add_setshow_boolean_cmd ("shell", class_support, &useshell, _("\
Set use of shell to start subprocess."), _("\
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