#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "target.h"
-#include "gdb_wait.h"
#include "gdbcore.h"
#include "command.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
-
-#ifdef _MSC_VER
-#include "windefs.h"
-#else /* other WIN32 compiler */
#include <windows.h>
#include <imagehlp.h>
-#endif
+#include <sys/cygwin.h>
#include "buildsym.h"
#include "symfile.h"
FIXME: This should be in a cygwin include file. */
#define CYGWIN_SIGNAL_STRING "cygwin: signal"
-#define CHECK(x) check (x, __FILE__,__LINE__)
+#define CHECK(x) check (x, __FILE__,__LINE__)
#define DEBUG_EXEC(x) if (debug_exec) printf x
#define DEBUG_EVENTS(x) if (debug_events) printf x
#define DEBUG_MEM(x) if (debug_memory) printf x
/* Forward declaration */
extern struct target_ops child_ops;
-static void child_stop PARAMS ((void));
-static int win32_child_thread_alive PARAMS ((int));
-void child_kill_inferior PARAMS ((void));
+static void child_stop (void);
+static int win32_child_thread_alive (int);
+void child_kill_inferior (void);
+static int last_sig = 0; /* Set if a signal was received from the
+ debugged process */
/* Thread information structure used to track information that is
not available in gdb's thread structure. */
typedef struct thread_info_struct
STACKFRAME sf;
} thread_info;
-static thread_info thread_head = {NULL};
-
-/* The saved state for a continue after breaking back to gdb. */
-static DWORD continue_status;
+static thread_info thread_head;
/* The process and thread handles for the above context. */
{
if (!th->suspend_count && get_context)
{
- if (get_context > 0)
+ if (get_context > 0 && id != current_event.dwThreadId)
th->suspend_count = SuspendThread (th->h) + 1;
else if (get_context < 0)
th->suspend_count = -1;
check (BOOL ok, const char *file, int line)
{
if (!ok)
- printf_filtered ("error return %s:%d was %d\n", file, line, GetLastError ());
+ printf_filtered ("error return %s:%d was %lu\n", file, line, GetLastError ());
}
static void
if (!ok)
goto failed;
- for (i = 0; i < cbNeeded / sizeof (HMODULE); i++)
+ for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
{
if (!(*psapi_GetModuleInformation) (current_process_handle,
DllHandle [i],
dll_name_ret,
MAX_PATH);
if (len == 0)
- error ("Error getting dll name: %u\n", GetLastError ());
+ error ("Error getting dll name: %u\n", GetLastError ());
if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
return 1;
return 0;
}
+/* Encapsulate the information required in a call to
+ symbol_file_add_args */
+struct safe_symbol_file_add_args
+{
+ char *name;
+ int from_tty;
+ struct section_addr_info *addrs;
+ int mainline;
+ int flags;
+ struct objfile *ret;
+};
+
+/* 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)
+ p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
+ return !!p->ret;
+#undef p
+}
+
+/* Restore gdb's stderr after calling symbol_file_add */
+static void
+safe_symbol_file_add_cleanup (void *gdb_stderrv)
+{
+ gdb_flush (gdb_stderr);
+ ui_file_delete (gdb_stderr);
+ gdb_stderr = (struct ui_file *)gdb_stderrv;
+}
+
+/* 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, gdb_stderr);
+
+ gdb_flush (gdb_stderr);
+ gdb_stderr = 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;
+}
+
+/* Maintain a linked list of "so" information. */
+struct so_stuff
+{
+ struct so_stuff *next, **last;
+ DWORD load_addr;
+ char name[0];
+} solib_start, *solib_end;
+
+/* Remember the maximum DLL length for printing in info dll command. */
+int max_dll_name_len;
+
/* Wait for child to do something. Return pid of child, or -1 in case
of error; store status through argument pointer OURSTATUS. */
-
static int
-handle_load_dll (PTR dummy)
+handle_load_dll (PTR dummy ATTRIBUTE_UNUSED)
{
LOAD_DLL_DEBUG_INFO *event = ¤t_event.u.LoadDll;
DWORD dll_name_ptr;
DWORD done;
char dll_buf[MAX_PATH + 1];
- char *p, *dll_name = NULL;
- struct objfile *objfile;
- MEMORY_BASIC_INFORMATION minfo;
- struct section_addr_info section_addrs;
+ struct so_stuff *so, *solast;
+ char *dll_name = NULL;
+ DWORD dll_base = 0;
+ int len;
+ char *p;
- memset (§ion_addrs, 0, sizeof (section_addrs));
dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';
if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
a program. It will not work for attached processes. */
if (dll_name == NULL || *dll_name == '\0')
{
- int size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
+ DWORD size = event->fUnicode ? sizeof (WCHAR) : sizeof (char);
int len = 0;
char b[2];
if (!dll_name)
return 1;
+ (void) strlwr (dll_name);
+
while ((p = strchr (dll_name, '\\')))
*p = '/';
+ so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (dll_name) + 8 + 2);
+ so->load_addr = (DWORD) event->lpBaseOfDll + 0x1000;
+ strcpy (so->name, dll_name);
+
+ solib_end->next = so;
+ solib_end = so;
+ so->next = NULL;
+
+ len = strlen (dll_name);
+ if (len > max_dll_name_len)
+ max_dll_name_len = len;
+
+ return 1;
+}
+
+/* Return name of last loaded DLL. */
+char *
+child_solib_loaded_library_pathname (int pid)
+{
+ return !solib_end || !solib_end->name[0]? NULL : solib_end->name;
+}
+
+/* Clear list of loaded DLLs. */
+void
+child_clear_solibs (void)
+{
+ struct so_stuff *so, *so1 = solib_start.next;
+
+ while ((so = so1) != NULL)
+ {
+ so1 = so->next;
+ free (so);
+ }
+
+ solib_start.next = NULL;
+ solib_end = &solib_start;
+ max_dll_name_len = sizeof ("DLL Name") - 1;
+}
+
+/* Add DLL symbol information. */
+void
+child_solib_add (char *filename, int from_tty, struct target_ops *t)
+{
+ struct section_addr_info section_addrs;
+
/* The symbols in a dll are offset by 0x1000, which is the
the offset from 0 of the first byte in an image - because
- of the file header and the section alignment.
+ of the file header and the section alignment. */
- FIXME: Is this the real reason that we need the 0x1000 ? */
+ if (!solib_end || !solib_end->name[0])
+ return;
- printf_unfiltered ("%x:%s", event->lpBaseOfDll, dll_name);
- section_addrs.text_addr = (int) event->lpBaseOfDll + 0x1000;
- symbol_file_add (dll_name, 0, §ion_addrs, 0, OBJF_SHARED);
- printf_unfiltered ("\n");
+ memset (§ion_addrs, 0, sizeof (section_addrs));
+ section_addrs.other[0].name = ".text";
+ section_addrs.other[0].addr = solib_end->load_addr;
+ safe_symbol_file_add (solib_end->name, 0, §ion_addrs, 0, OBJF_SHARED);
- return 1;
+ return;
+}
+
+/* Load DLL symbol info. */
+void
+dll_symbol_command (char *args, int from_tty)
+{
+ struct section_addr_info section_addrs;
+
+ dont_repeat ();
+
+ if (args == NULL)
+ error ("dll-symbols requires a file name");
+
+ safe_symbol_file_add (args, 0, NULL, 0, OBJF_SHARED);
+}
+
+/* List currently loaded DLLs. */
+void
+info_dll_command (char *ignore, int from_tty)
+{
+ struct so_stuff *so = &solib_start;
+
+ if (!so->next)
+ return;
+
+ printf ("%*s Load Address\n", -max_dll_name_len, "DLL Name");
+ while ((so = so->next) != NULL)
+ printf_unfiltered ("%*s %08lx\n", -max_dll_name_len, so->name, so->load_addr);
+
+ return;
}
/* Handle DEBUG_STRING output from child process.
if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
{
if (strncmp (s, "cYg", 3) != 0)
- warning (s);
+ warning ("%s", s);
}
else
{
static int
handle_exception (struct target_waitstatus *ourstatus)
{
- int i;
- int done = 0;
thread_info *th;
+ DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;
ourstatus->kind = TARGET_WAITKIND_STOPPED;
/* Record the context of the current thread */
th = thread_rec (current_event.dwThreadId, -1);
- switch (current_event.u.Exception.ExceptionRecord.ExceptionCode)
+ last_sig = 0;
+
+ switch (code)
{
case EXCEPTION_ACCESS_VIOLATION:
- DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception ACCESS_VIOLATION at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
+ last_sig = SIGSEGV;
break;
case STATUS_FLOAT_UNDERFLOW:
case STATUS_FLOAT_DIVIDE_BY_ZERO:
case STATUS_FLOAT_OVERFLOW:
case STATUS_INTEGER_DIVIDE_BY_ZERO:
- DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_FPE;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
+ last_sig = SIGFPE;
break;
case STATUS_STACK_OVERFLOW:
- DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception STACK_OVERFLOW at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_SEGV;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
case EXCEPTION_BREAKPOINT:
- DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception BREAKPOINT at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
case DBG_CONTROL_C:
- DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception CONTROL_C at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_INT;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
+ last_sig = SIGINT; /* FIXME - should check pass state */
break;
case EXCEPTION_SINGLE_STEP:
- DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08x\n",
- current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ DEBUG_EXCEPT (("gdb: Target exception SINGLE_STEP at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
ourstatus->value.sig = TARGET_SIGNAL_TRAP;
break;
+ case EXCEPTION_ILLEGAL_INSTRUCTION:
+ DEBUG_EXCEPT (("gdb: Target exception SINGLE_ILL at 0x%08lx\n",
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress));
+ ourstatus->value.sig = TARGET_SIGNAL_ILL;
+ last_sig = SIGILL;
+ break;
default:
- /* This may be a structured exception handling exception. In
- that case, we want to let the program try to handle it, and
- only break if we see the exception a second time.
- if (current_event.u.Exception.dwFirstChance)
-
- return 0;
-*/
-
- printf_unfiltered ("gdb: unknown target exception 0x%08x at 0x%08x\n",
+ printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
current_event.u.Exception.ExceptionRecord.ExceptionCode,
- current_event.u.Exception.ExceptionRecord.ExceptionAddress);
+ (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress);
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
break;
}
exception_count++;
/* Resume all artificially suspended threads if we are continuing
execution */
static BOOL
-child_continue (int id)
+child_continue (DWORD continue_status, int id)
{
int i;
thread_info *th;
BOOL res;
- DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
+ DEBUG_EVENTS (("ContinueDebugEvent (cpid=%ld, ctid=%ld, DBG_CONTINUE);\n",
current_event.dwProcessId, current_event.dwThreadId));
res = ContinueDebugEvent (current_event.dwProcessId,
current_event.dwThreadId,
continue_status = 0;
if (res)
for (th = &thread_head; (th = th->next) != NULL;)
- if (((id == -1) || (id == th->id)) && th->suspend_count)
+ if (((id == -1) || (id == (int) th->id)) && th->suspend_count)
{
for (i = 0; i < th->suspend_count; i++)
(void) ResumeThread (th->h);
return res;
}
+/* Get the next event from the child. Return 1 if the event requires
+ handling by WFI (or whatever).
+ */
static int
-get_child_debug_event (int pid, struct target_waitstatus *ourstatus,
- DWORD *event_code, int *retval)
+get_child_debug_event (int pid ATTRIBUTE_UNUSED, struct target_waitstatus *ourstatus)
{
+ int breakout = 0;
BOOL debug_event;
- int breakout = 1;
+ DWORD continue_status, event_code;
+ thread_info *th = NULL;
+ static thread_info dummy_thread_info;
+ int retval = 0;
- if (!(debug_event = WaitForDebugEvent (¤t_event, 20)))
- {
- breakout = *retval = *event_code = 0;
- goto out;
- }
+ if (!(debug_event = WaitForDebugEvent (¤t_event, 1000)))
+ goto out;
event_count++;
continue_status = DBG_CONTINUE;
- *retval = 0;
- switch (*event_code = current_event.dwDebugEventCode)
+ event_code = current_event.dwDebugEventCode;
+ ourstatus->kind = TARGET_WAITKIND_SPURIOUS;
+
+ switch (event_code)
{
case CREATE_THREAD_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "CREATE_THREAD_DEBUG_EVENT"));
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "CREATE_THREAD_DEBUG_EVENT"));
/* Record the existence of this thread */
- child_add_thread (current_event.dwThreadId,
- current_event.u.CreateThread.hThread);
+ th = child_add_thread (current_event.dwThreadId,
+ current_event.u.CreateThread.hThread);
if (info_verbose)
printf_unfiltered ("[New %s]\n",
- target_pid_to_str (current_event.dwThreadId));
+ target_pid_to_str (current_event.dwThreadId));
+ retval = current_event.dwThreadId;
break;
case EXIT_THREAD_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXIT_THREAD_DEBUG_EVENT"));
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXIT_THREAD_DEBUG_EVENT"));
child_delete_thread (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",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "CREATE_PROCESS_DEBUG_EVENT"));
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "CREATE_PROCESS_DEBUG_EVENT"));
current_process_handle = current_event.u.CreateProcessInfo.hProcess;
main_thread_id = inferior_pid = current_event.dwThreadId;
/* Add the main thread */
- current_thread = child_add_thread (inferior_pid,
- current_event.u.CreateProcessInfo.hThread);
+ th = child_add_thread (current_event.dwProcessId,
+ current_event.u.CreateProcessInfo.hProcess);
+ th = child_add_thread (inferior_pid,
+ current_event.u.CreateProcessInfo.hThread);
+ retval = ourstatus->value.related_pid = current_event.dwProcessId;
break;
case EXIT_PROCESS_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXIT_PROCESS_DEBUG_EVENT"));
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXIT_PROCESS_DEBUG_EVENT"));
ourstatus->kind = TARGET_WAITKIND_EXITED;
ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
CloseHandle (current_process_handle);
- *retval = current_event.dwProcessId;
- goto out;
+ retval = current_event.dwProcessId;
+ break;
case LOAD_DLL_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "LOAD_DLL_DEBUG_EVENT"));
- catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL);
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "LOAD_DLL_DEBUG_EVENT"));
+ catch_errors (handle_load_dll, NULL, (char *) "", RETURN_MASK_ALL);
registers_changed (); /* mark all regs invalid */
+ ourstatus->kind = TARGET_WAITKIND_LOADED;
+ ourstatus->value.integer = 0;
+ retval = current_event.dwProcessId;
break;
case UNLOAD_DLL_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "UNLOAD_DLL_DEBUG_EVENT"));
- break; /* FIXME: don't know what to do here */
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "UNLOAD_DLL_DEBUG_EVENT"));
+ break; /* FIXME: don't know what to do here */
case EXCEPTION_DEBUG_EVENT:
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "EXCEPTION_DEBUG_EVENT"));
- if (handle_exception (ourstatus)) /* sets continue_status */
- {
- *retval = current_event.dwThreadId;
- goto out;
- }
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "EXCEPTION_DEBUG_EVENT"));
+ handle_exception (ourstatus);
+ retval = current_event.dwThreadId;
break;
- case OUTPUT_DEBUG_STRING_EVENT:
+ case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- (unsigned) current_event.dwProcessId,
- (unsigned) current_event.dwThreadId,
- "OUTPUT_DEBUG_STRING_EVENT"));
- if (handle_output_debug_string (ourstatus))
- {
- *retval = main_thread_id;
- goto out;
- }
+ (unsigned) current_event.dwProcessId,
+ (unsigned) current_event.dwThreadId,
+ "OUTPUT_DEBUG_STRING_EVENT"));
+ if (handle_output_debug_string ( ourstatus))
+ retval = current_event.dwProcessId;
break;
default:
- printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
- current_event.dwProcessId,
- current_event.dwThreadId);
- printf_unfiltered (" unknown event code %d\n",
+ printf_unfiltered ("gdb: kernel event for pid=%ld tid=%ld\n",
+ (DWORD) current_event.dwProcessId,
+ (DWORD) current_event.dwThreadId);
+ printf_unfiltered (" unknown event code %ld\n",
current_event.dwDebugEventCode);
break;
}
- breakout = 0;
- CHECK (child_continue (-1));
- continue_status = 0;
+ if (!retval)
+ CHECK (child_continue (continue_status, -1));
+ else
+ current_thread = th ?: thread_rec (current_event.dwThreadId, TRUE);
out:
- return breakout;
+ return retval;
}
-
/* Wait for interesting events to occur in the target process. */
static int
child_wait (int pid, struct target_waitstatus *ourstatus)
{
- DWORD event_code;
- int retval;
-
/* We loop when we get a non-standard exception rather than return
with a SPURIOUS because resume can try and step or modify things,
which needs a current_thread->h. But some of these exceptions mark
while (1)
{
- if (continue_status != 0)
- CHECK (child_continue (-1));
- if (get_child_debug_event (pid, ourstatus, &event_code, &retval))
+ int retval = get_child_debug_event (pid, ourstatus);
+ if (retval)
return retval;
else
{
exception_count = 0;
event_count = 0;
+ child_init_thread_list ();
+ child_clear_solibs ();
+
if (from_tty)
{
char *exec_file = (char *) get_exec_file (0);
}
static void
-child_detach (args, from_tty)
- char *args;
- int from_tty;
+child_detach (char *args ATTRIBUTE_UNUSED, int from_tty)
{
if (from_tty)
{
/* Print status information about what we're accessing. */
static void
-child_files_info (ignore)
- struct target_ops *ignore;
+child_files_info (struct target_ops *ignore ATTRIBUTE_UNUSED)
{
printf_unfiltered ("\tUsing the running image of %s %s.\n",
attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
/* ARGSUSED */
static void
-child_open (arg, from_tty)
- char *arg;
- int from_tty;
+child_open (char *arg ATTRIBUTE_UNUSED, int from_tty ATTRIBUTE_UNUSED)
{
error ("Use the \"run\" command to start a Unix child process.");
}
BOOL ret;
DWORD flags;
char *args;
- DWORD event_code;
+ extern int stop_after_trap;
if (!exec_file)
- {
- error ("No executable specified, use `target exec'.\n");
- }
+ error ("No executable specified, use `target exec'.\n");
memset (&si, 0, sizeof (si));
si.cb = sizeof (si);
- cygwin32_conv_to_win32_path (exec_file, real_path);
+ cygwin_conv_to_win32_path (exec_file, real_path);
flags = DEBUG_ONLY_THIS_PROCESS;
len = strlen (conv_path_names[j]);
if (strncmp (conv_path_names[j], env[i], len) == 0)
{
- if (cygwin32_posix_path_list_p (env[i] + len))
+ if (cygwin_posix_path_list_p (env[i] + len))
envlen += len
- + cygwin32_posix_to_win32_path_list_buf_size (env[i] + len);
+ + cygwin_posix_to_win32_path_list_buf_size (env[i] + len);
else
envlen += strlen (env[i]) + 1;
break;
len = strlen (conv_path_names[j]);
if (strncmp (conv_path_names[j], env[i], len) == 0)
{
- if (cygwin32_posix_path_list_p (env[i] + len))
+ if (cygwin_posix_path_list_p (env[i] + len))
{
memcpy (temp, env[i], len);
- cygwin32_posix_to_win32_path_list (env[i] + len, temp + len);
+ cygwin_posix_to_win32_path_list (env[i] + len, temp + len);
}
else
strcpy (temp, env[i]);
inferior_pid = current_event.dwThreadId = pi.dwThreadId;
push_target (&child_ops);
child_init_thread_list ();
- init_wait_for_inferior ();
+ child_clear_solibs ();
clear_proceed_status ();
+ init_wait_for_inferior ();
target_terminal_init ();
target_terminal_inferior ();
+ last_sig = 0;
- /* Run until process and threads are loaded */
- do
- get_child_debug_event (inferior_pid, &dummy, &event_code, &ret);
- while (event_code != EXCEPTION_DEBUG_EVENT);
-
- SymSetOptions (SYMOPT_DEFERRED_LOADS);
- SymInitialize (current_process_handle, NULL, TRUE);
+ while (1)
+ {
+ stop_after_trap = 1;
+ wait_for_inferior ();
+ if (stop_signal != TARGET_SIGNAL_TRAP)
+ resume (0, stop_signal);
+ else
+ break;
+ }
+ stop_after_trap = 0;
+ /* child_continue (DBG_CONTINUE, -1);*/
proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
}
static void
child_mourn_inferior ()
{
- continue_status = DBG_CONTINUE;
- (void) child_continue (-1);
+ (void) child_continue (DBG_CONTINUE, -1);
unpush_target (&child_ops);
generic_mourn_inferior ();
}
int
child_xfer_memory (CORE_ADDR memaddr, char *our, int len,
- int write, struct target_ops *target)
+ int write, struct target_ops *target ATTRIBUTE_UNUSED)
{
DWORD done;
if (write)
{
- DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08x\n",
- len, memaddr));
+ DEBUG_MEM (("gdb: write target memory, %d bytes at 0x%08lx\n",
+ len, (DWORD) memaddr));
WriteProcessMemory (current_process_handle, (LPVOID) memaddr, our,
len, &done);
FlushInstructionCache (current_process_handle, (LPCVOID) memaddr, len);
}
else
{
- DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08x\n",
- len, memaddr));
+ DEBUG_MEM (("gdb: read target memory, %d bytes at 0x%08lx\n",
+ len, (DWORD) memaddr));
ReadProcessMemory (current_process_handle, (LPCVOID) memaddr, our, len,
&done);
}
for (;;)
{
- continue_status = DBG_CONTINUE;
- if (!child_continue (-1))
+ if (!child_continue (DBG_CONTINUE, -1))
break;
if (!WaitForDebugEvent (¤t_event, INFINITE))
break;
void
child_resume (int pid, int step, enum target_signal sig)
{
- int i;
thread_info *th;
+ DWORD continue_status = last_sig > 0 && last_sig < NSIG ?
+ DBG_EXCEPTION_NOT_HANDLED : DBG_CONTINUE;
+
+ last_sig = 0;
DEBUG_EXEC (("gdb: child_resume (pid=%d, step=%d, sig=%d);\n",
pid, step, sig));
/* Get context for currently selected thread */
th = thread_rec (current_event.dwThreadId, FALSE);
- if (step)
+ if (th)
{
-#ifdef i386
- /* Single step by setting t bit */
- child_fetch_inferior_registers (PS_REGNUM);
- th->context.EFlags |= FLAG_TRACE_BIT;
-#endif
- }
+ if (step)
+ {
+ /* Single step by setting t bit */
+ child_fetch_inferior_registers (PS_REGNUM);
+ th->context.EFlags |= FLAG_TRACE_BIT;
+ }
- if (th->context.ContextFlags)
- {
- CHECK (SetThreadContext (th->h, &th->context));
- th->context.ContextFlags = 0;
+ if (th->context.ContextFlags)
+ {
+ CHECK (SetThreadContext (th->h, &th->context));
+ th->context.ContextFlags = 0;
+ }
}
/* Allow continuing with the same signal that interrupted us.
Otherwise complain. */
- child_continue (pid);
+ child_continue (continue_status, pid);
}
static void
void
_initialize_inftarg ()
{
- struct cmd_list_element *c;
init_child_ops ();
- add_show_from_set
- (add_set_cmd ("new-console", class_support, var_boolean,
+ 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_show_from_set (add_set_cmd ("new-console", class_support, var_boolean,
(char *) &new_console,
"Set creation of new console when creating child process.",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("new-group", class_support, var_boolean,
+ add_show_from_set (add_set_cmd ("new-group", class_support, var_boolean,
(char *) &new_group,
"Set creation of new group when creating child process.",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("debugexec", class_support, var_boolean,
+ add_show_from_set (add_set_cmd ("debugexec", class_support, var_boolean,
(char *) &debug_exec,
"Set whether to display execution in child process.",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("debugevents", class_support, var_boolean,
+ add_show_from_set (add_set_cmd ("debugevents", class_support, var_boolean,
(char *) &debug_events,
"Set whether to display kernel events in child process.",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("debugmemory", class_support, var_boolean,
+ add_show_from_set (add_set_cmd ("debugmemory", class_support, var_boolean,
(char *) &debug_memory,
"Set whether to display memory accesses in child process.",
&setlist),
&showlist);
- add_show_from_set
- (add_set_cmd ("debugexceptions", class_support, var_boolean,
+ add_show_from_set (add_set_cmd ("debugexceptions", class_support, var_boolean,
(char *) &debug_exceptions,
- "Set whether to display kernel exceptions in child process.",
+ "Set whether to display kernel exceptions in child process.",
&setlist),
&showlist);
+ add_info ("dll", info_dll_command, "Status of loaded DLLs.");
+ add_info_alias ("sharedlibrary", "dll", 1);
+
add_target (&child_ops);
}
cygwin_pid_to_str (int pid)
{
static char buf[80];
- if (pid == current_event.dwProcessId)
+ if ((DWORD) pid == current_event.dwProcessId)
sprintf (buf, "process %d", pid);
else
- sprintf (buf, "thread %d.0x%x", current_event.dwProcessId, pid);
+ sprintf (buf, "thread %ld.0x%x", current_event.dwProcessId, pid);
return buf;
}
-
-static LPVOID __stdcall
-sfta(HANDLE h, DWORD d)
-{
- return NULL;
-}
-
-static DWORD __stdcall
-sgmb(HANDLE h, DWORD d)
-{
-#if 0
- return 4;
-#else
- return SymGetModuleBase (h, d) ?: 4;
-#endif
-}
-
-CORE_ADDR
-child_frame_chain(struct frame_info *f)
-{
- STACKFRAME *sf = (STACKFRAME *) f->extra_info;
- if (!StackWalk (IMAGE_FILE_MACHINE_I386, current_process_handle,
- current_thread->h, sf, NULL, NULL, SymFunctionTableAccess, sgmb, NULL) ||
- !sf->AddrReturn.Offset)
- return 0;
- return sf->AddrFrame.Offset;
-}
-
-CORE_ADDR
-child_frame_saved_pc(struct frame_info *f)
-{
- STACKFRAME *sf = (STACKFRAME *) f->extra_info;
- return sf->AddrReturn.Offset;
-}
-
-void
-child_init_frame(int leaf, struct frame_info *f)
-{
- STACKFRAME *sf;
-
- if (f->next && f->next->extra_info)
- f->extra_info = f->next->extra_info;
- else if (f->prev && f->prev->extra_info)
- f->extra_info = f->prev->extra_info;
- else
- {
- sf = (STACKFRAME *) frame_obstack_alloc (sizeof (*sf));
- f->extra_info = (struct frame_extra_info *) sf;
- memset (sf, 0, sizeof(*sf));
- sf->AddrPC.Offset = f->pc;
- sf->AddrPC.Mode = AddrModeFlat;
- sf->AddrStack.Offset = current_thread->context.Esp;
- sf->AddrStack.Mode = AddrModeFlat;
- sf->AddrFrame.Offset = f->frame;
- sf->AddrFrame.Mode = AddrModeFlat;
- }
-}
projects / deliverable / binutils-gdb.git / blobdiff