#define NAT_WINDOWS_NAT_H
#include <windows.h>
+#include <vector>
+
+#include "gdbsupport/gdb_optional.h"
+#include "target/waitstatus.h"
+
+#define STATUS_WX86_BREAKPOINT 0x4000001F
+#define STATUS_WX86_SINGLE_STEP 0x4000001E
+
+namespace windows_nat
+{
/* Thread information structure used to track extra information about
each thread. */
breakpoint. This is used to offset the PC when needed. */
bool stopped_at_software_breakpoint = false;
+ /* True if we've adjusted the PC after hitting a software
+ breakpoint, false otherwise. This lets us avoid multiple
+ adjustments if the registers are read multiple times. */
+ bool pc_adjusted = false;
+
/* The name of the thread, allocated by xmalloc. */
gdb::unique_xmalloc_ptr<char> name;
};
+
+/* Possible values to pass to 'thread_rec'. */
+enum thread_disposition_type
+{
+ /* Do not invalidate the thread's context, and do not suspend the
+ thread. */
+ DONT_INVALIDATE_CONTEXT,
+ /* Invalidate the context, but do not suspend the thread. */
+ DONT_SUSPEND,
+ /* Invalidate the context and suspend the thread. */
+ INVALIDATE_CONTEXT
+};
+
+/* Find a thread record given a thread id. THREAD_DISPOSITION
+ controls whether the thread is suspended, and whether the context
+ is invalidated.
+
+ This function must be supplied by the embedding application. */
+extern windows_thread_info *thread_rec (ptid_t ptid,
+ thread_disposition_type disposition);
+
+
+/* Handle OUTPUT_DEBUG_STRING_EVENT from child process. Updates
+ OURSTATUS and returns the thread id if this represents a thread
+ change (this is specific to Cygwin), otherwise 0.
+
+ Cygwin prepends its messages with a "cygwin:". Interpret this as
+ a Cygwin signal. Otherwise just print the string as a warning.
+
+ This function must be supplied by the embedding application. */
+extern int handle_output_debug_string (struct target_waitstatus *ourstatus);
+
+/* Handle a DLL load event.
+
+ This function assumes that the current event did not occur during
+ inferior initialization.
+
+ This function must be supplied by the embedding application. */
+
+extern void handle_load_dll ();
+
+/* Handle a DLL unload event.
+
+ This function assumes that this event did not occur during inferior
+ initialization.
+
+ This function must be supplied by the embedding application. */
+
+extern void handle_unload_dll ();
+
+/* Handle MS_VC_EXCEPTION when processing a stop. MS_VC_EXCEPTION is
+ somewhat undocumented but is used to tell the debugger the name of
+ a thread.
+
+ Return true if the exception was handled; return false otherwise.
+
+ This function must be supplied by the embedding application. */
+
+extern bool handle_ms_vc_exception (const EXCEPTION_RECORD *rec);
+
+/* When EXCEPTION_ACCESS_VIOLATION is processed, we give the embedding
+ application a chance to change it to be considered "unhandled".
+ This function must be supplied by the embedding application. If it
+ returns true, then the exception is "unhandled". */
+
+extern bool handle_access_violation (const EXCEPTION_RECORD *rec);
+
+
+/* Currently executing process */
+extern HANDLE current_process_handle;
+extern DWORD current_process_id;
+extern DWORD main_thread_id;
+extern enum gdb_signal last_sig;
+
+/* The current debug event from WaitForDebugEvent or from a pending
+ stop. */
+extern DEBUG_EVENT current_event;
+
+/* The ID of the thread for which we anticipate a stop event.
+ Normally this is -1, meaning we'll accept an event in any
+ thread. */
+extern DWORD desired_stop_thread_id;
+
+/* A single pending stop. See "pending_stops" for more
+ information. */
+struct pending_stop
+{
+ /* The thread id. */
+ DWORD thread_id;
+
+ /* The target waitstatus we computed. */
+ target_waitstatus status;
+
+ /* The event. A few fields of this can be referenced after a stop,
+ and it seemed simplest to store the entire event. */
+ DEBUG_EVENT event;
+};
+
+/* A vector of pending stops. Sometimes, Windows will report a stop
+ on a thread that has been ostensibly suspended. We believe what
+ happens here is that two threads hit a breakpoint simultaneously,
+ and the Windows kernel queues the stop events. However, this can
+ result in the strange effect of trying to single step thread A --
+ leaving all other threads suspended -- and then seeing a stop in
+ thread B. To handle this scenario, we queue all such "pending"
+ stops here, and then process them once the step has completed. See
+ PR gdb/22992. */
+extern std::vector<pending_stop> pending_stops;
+
+/* Contents of $_siginfo */
+extern EXCEPTION_RECORD siginfo_er;
+
+#ifdef __x86_64__
+/* Ignore first breakpoint exception of WOW64 process */
+extern bool ignore_first_breakpoint;
+#endif
+
+/* Return the name of the DLL referenced by H at ADDRESS. UNICODE
+ determines what sort of string is read from the inferior. Returns
+ the name of the DLL, or NULL on error. If a name is returned, it
+ is stored in a static buffer which is valid until the next call to
+ get_image_name. */
+extern const char *get_image_name (HANDLE h, void *address, int unicode);
+
+typedef enum
+{
+ HANDLE_EXCEPTION_UNHANDLED = 0,
+ HANDLE_EXCEPTION_HANDLED,
+ HANDLE_EXCEPTION_IGNORED
+} handle_exception_result;
+
+extern handle_exception_result handle_exception
+ (struct target_waitstatus *ourstatus, bool debug_exceptions);
+
+/* Return true if there is a pending stop matching
+ desired_stop_thread_id. If DEBUG_EVENTS is true, logging will be
+ enabled. */
+
+extern bool matching_pending_stop (bool debug_events);
+
+/* See if a pending stop matches DESIRED_STOP_THREAD_ID. If so,
+ remove it from the list of pending stops, set 'current_event', and
+ return it. Otherwise, return an empty optional. */
+
+extern gdb::optional<pending_stop> fetch_pending_stop (bool debug_events);
+
+/* A simple wrapper for ContinueDebugEvent that continues the last
+ waited-for event. If DEBUG_EVENTS is true, logging will be
+ enabled. */
+
+extern BOOL continue_last_debug_event (DWORD continue_status,
+ bool debug_events);
+
+/* A simple wrapper for WaitForDebugEvent that also sets the internal
+ 'last_wait_event' on success. */
+
+extern BOOL wait_for_debug_event (DEBUG_EVENT *event, DWORD timeout);
+
+}
+
#endif
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