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Diffstat (limited to 'gdb/windows-nat.c')
-rw-r--r--gdb/windows-nat.c206
1 files changed, 117 insertions, 89 deletions
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index 87e96bd..fa19797 100644
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -50,6 +50,17 @@
#include <sys/param.h>
#include <unistd.h>
+/* The ui's event loop. */
+extern int (*ui_loop_hook) PARAMS ((int signo));
+
+/* 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... */
+#ifndef _GNU_H_WINDOWS_H
+#define FLAG_TRACE_BIT 0x100
+#define CONTEXT_DEBUGGER (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
+#endif
+
/* The string sent by cygwin when it processes a signal.
FIXME: This should be in a cygwin include file. */
#define CYGWIN_SIGNAL_STRING "cygwin: signal"
@@ -65,6 +76,7 @@ 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 int last_sig = 0; /* Set if a signal was received from the
debugged process */
@@ -453,7 +465,9 @@ handle_output_debug_string (struct target_waitstatus *ourstatus)
{
char *p;
/*last_sig = */strtol(s + sizeof(CYGWIN_SIGNAL_STRING) - 1, &p, 0);
- if (gotasig = (ourstatus->value.sig = target_signal_from_host (last_sig)))
+ gotasig = target_signal_from_host (last_sig);
+ ourstatus->value.sig = gotasig;
+ if (gotasig)
ourstatus->kind = TARGET_WAITKIND_STOPPED;
}
@@ -530,9 +544,10 @@ child_continue (DWORD continue_status, int id)
DEBUG_EVENTS (("ContinueDebugEvent (cpid=%d, ctid=%d, DBG_CONTINUE);\n",
current_event.dwProcessId, current_event.dwThreadId));
- if (res = ContinueDebugEvent (current_event.dwProcessId,
- current_event.dwThreadId,
- continue_status))
+ res = ContinueDebugEvent (current_event.dwProcessId,
+ current_event.dwThreadId,
+ continue_status);
+ if (res)
for (th = &thread_head; (th = th->next) != NULL; )
if (((id == -1) || (id == th->id)) && th->suspend_count)
{
@@ -556,98 +571,111 @@ child_wait (int pid, struct target_waitstatus *ourstatus)
while (1)
{
DWORD continue_status;
- BOOL t = WaitForDebugEvent (&current_event, INFINITE);
+ BOOL debug_event = WaitForDebugEvent (&current_event, 20);
char *p;
thread_info *th;
int sig;
- event_count++;
-
- continue_status = DBG_CONTINUE;
-
- switch (current_event.dwDebugEventCode)
+ if (debug_event)
{
- case CREATE_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "CREATE_THREAD_DEBUG_EVENT"));
- /* Record the existence of this thread */
- child_add_thread (current_event.dwThreadId,
- current_event.u.CreateThread.hThread);
- if (info_verbose)
- printf_unfiltered ("[New %s]\n",
- target_pid_to_str (current_event.dwThreadId));
- break;
-
- case EXIT_THREAD_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "EXIT_THREAD_DEBUG_EVENT"));
- child_delete_thread (current_event.dwThreadId);
- break;
-
- case CREATE_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "CREATE_PROCESS_DEBUG_EVENT"));
- current_process_handle = current_event.u.CreateProcessInfo.hProcess;
-
- main_thread_id = inferior_pid = current_event.dwThreadId;
- /* Add the main thread */
- current_thread = child_add_thread (inferior_pid,
- current_event.u.CreateProcessInfo.hThread);
- break;
-
- case EXIT_PROCESS_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "EXIT_PROCESS_DEBUG_EVENT"));
- ourstatus->kind = TARGET_WAITKIND_EXITED;
- ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
- CloseHandle (current_process_handle);
- return current_event.dwProcessId;
- break;
-
- case LOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "LOAD_DLL_DEBUG_EVENT"));
- catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL);
- registers_changed(); /* mark all regs invalid */
- break;
-
- case UNLOAD_DLL_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "UNLOAD_DLL_DEBUG_EVENT"));
- break; /* FIXME: don't know what to do here */
-
- case EXCEPTION_DEBUG_EVENT:
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "EXCEPTION_DEBUG_EVENT"));
- if (handle_exception (ourstatus))
- return current_event.dwThreadId;
- continue_status = DBG_EXCEPTION_NOT_HANDLED;
- break;
-
- case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
- DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
- current_event.dwProcessId, current_event.dwThreadId,
- "OUTPUT_DEBUG_STRING_EVENT"));
- if (handle_output_debug_string (ourstatus))
- return main_thread_id;
- break;
- default:
- printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
- current_event.dwProcessId,
- current_event.dwThreadId);
- printf_unfiltered (" unknown event code %d\n",
- current_event.dwDebugEventCode);
- break;
+ event_count++;
+
+ continue_status = DBG_CONTINUE;
+
+ switch (current_event.dwDebugEventCode)
+ {
+ case CREATE_THREAD_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%x code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "CREATE_THREAD_DEBUG_EVENT"));
+ /* Record the existence of this thread */
+ child_add_thread (current_event.dwThreadId,
+ current_event.u.CreateThread.hThread);
+ if (info_verbose)
+ printf_unfiltered ("[New %s]\n",
+ target_pid_to_str (current_event.dwThreadId));
+ break;
+
+ case EXIT_THREAD_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "EXIT_THREAD_DEBUG_EVENT"));
+ child_delete_thread (current_event.dwThreadId);
+ break;
+
+ case CREATE_PROCESS_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "CREATE_PROCESS_DEBUG_EVENT"));
+ current_process_handle = current_event.u.CreateProcessInfo.hProcess;
+
+ main_thread_id = inferior_pid = current_event.dwThreadId;
+ /* Add the main thread */
+ current_thread = child_add_thread (inferior_pid,
+ current_event.u.CreateProcessInfo.hThread);
+ break;
+
+ case EXIT_PROCESS_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "EXIT_PROCESS_DEBUG_EVENT"));
+ ourstatus->kind = TARGET_WAITKIND_EXITED;
+ ourstatus->value.integer = current_event.u.ExitProcess.dwExitCode;
+ CloseHandle (current_process_handle);
+ return current_event.dwProcessId;
+ break;
+
+ case LOAD_DLL_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "LOAD_DLL_DEBUG_EVENT"));
+ catch_errors (handle_load_dll, NULL, "", RETURN_MASK_ALL);
+ registers_changed(); /* mark all regs invalid */
+ break;
+
+ case UNLOAD_DLL_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "UNLOAD_DLL_DEBUG_EVENT"));
+ break; /* FIXME: don't know what to do here */
+
+ case EXCEPTION_DEBUG_EVENT:
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "EXCEPTION_DEBUG_EVENT"));
+ if (handle_exception (ourstatus))
+ return current_event.dwThreadId;
+ continue_status = DBG_EXCEPTION_NOT_HANDLED;
+ break;
+
+ case OUTPUT_DEBUG_STRING_EVENT: /* message from the kernel */
+ DEBUG_EVENTS (("gdb: kernel event for pid=%d tid=%d code=%s)\n",
+ current_event.dwProcessId, current_event.dwThreadId,
+ "OUTPUT_DEBUG_STRING_EVENT"));
+ if (handle_output_debug_string (ourstatus))
+ return main_thread_id;
+ break;
+ default:
+ printf_unfiltered ("gdb: kernel event for pid=%d tid=%d\n",
+ current_event.dwProcessId,
+ current_event.dwThreadId);
+ printf_unfiltered (" unknown event code %d\n",
+ current_event.dwDebugEventCode);
+ break;
+ }
+
+ CHECK (child_continue (continue_status, -1));
}
+ else
+ {
+ int detach = 0;
- CHECK (child_continue (continue_status, -1));
+ if (ui_loop_hook != NULL)
+ detach = ui_loop_hook (0);
+
+ if (detach)
+ child_kill_inferior ();
+ }
}
}