ubsan: m10300: shift exponent -4

[deliverable/binutils-gdb.git] / gdb / gdbthread.h

diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h
index 94fc1b7472157f077f13a247bfc5886ccba9d0af..dc7e248bc03abae1aa2ef73bb07c7071b8e7b512 100644 (file)
--- a/gdb/gdbthread.h
+++ b/gdb/gdbthread.h
@@ -1,5 +1,5 @@
 /* Multi-process/thread control defs for GDB, the GNU debugger.
-   Copyright (C) 1987-2018 Free Software Foundation, Inc.
+   Copyright (C) 1987-2020 Free Software Foundation, Inc.
    Contributed by Lynx Real-Time Systems, Inc.  Los Gatos, CA.
    
 
@@ -27,20 +27,41 @@ struct symtab;
 #include "frame.h"
 #include "ui-out.h"
 #include "btrace.h"
-#include "common/vec.h"
 #include "target/waitstatus.h"
 #include "cli/cli-utils.h"
-#include "common/refcounted-object.h"
-#include "common-gdbthread.h"
+#include "gdbsupport/refcounted-object.h"
+#include "gdbsupport/common-gdbthread.h"
+#include "gdbsupport/forward-scope-exit.h"
 
 struct inferior;
 
 /* Frontend view of the thread state.  Possible extensions: stepping,
-   finishing, until(ling),...  */
+   finishing, until(ling),...
+
+   NOTE: Since the thread state is not a boolean, most times, you do
+   not want to check it with negation.  If you really want to check if
+   the thread is stopped,
+
+    use (good):
+
+     if (tp->state == THREAD_STOPPED)
+
+    instead of (bad):
+
+     if (tp->state != THREAD_RUNNING)
+
+   The latter is also true for exited threads, most likely not what
+   you want.  */
 enum thread_state
 {
+  /* In the frontend's perpective, the thread is stopped.  */
   THREAD_STOPPED,
+
+  /* In the frontend's perpective, the thread is running.  */
   THREAD_RUNNING,
+
+  /* The thread is listed, but known to have exited.  We keep it
+     listed (but not visible) until it's safe to delete it.  */
   THREAD_EXITED,
 };
 
@@ -213,7 +234,7 @@ struct private_thread_info
    reverting back (e.g., due to a "kill" command).  If the thread
    meanwhile exits before being re-selected, then the thread object is
    left listed in the thread list, but marked with state
-   THREAD_EXITED.  (See make_cleanup_restore_current_thread and
+   THREAD_EXITED.  (See scoped_restore_current_thread and
    delete_thread).  All other thread references are considered weak
    references.  Placing a thread in the thread list is an implicit
    strong reference, and is thus not accounted for in the thread's
@@ -464,8 +485,8 @@ extern struct thread_info *find_thread_ptid (inferior *inf, ptid_t ptid);
 struct thread_info *find_thread_global_id (int global_id);
 
 /* Find thread by thread library specific handle in inferior INF.  */
-struct thread_info *find_thread_by_handle (struct value *thread_handle,
-                                          struct inferior *inf);
+struct thread_info *find_thread_by_handle
+  (gdb::array_view<const gdb_byte> handle, struct inferior *inf);
 
 /* Finds the first thread of the specified inferior.  */
 extern struct thread_info *first_thread_of_inferior (inferior *inf);
@@ -566,31 +587,6 @@ extern void set_running (ptid_t ptid, int running);
    observer is called with PTID as argument.  */
 extern void set_stop_requested (ptid_t ptid, int stop);
 
-/* NOTE: Since the thread state is not a boolean, most times, you do
-   not want to check it with negation.  If you really want to check if
-   the thread is stopped,
-
-    use (good):
-
-     if (is_stopped (ptid))
-
-    instead of (bad):
-
-     if (!is_running (ptid))
-
-   The latter also returns true on exited threads, most likelly not
-   what you want.  */
-
-/* Reports if in the frontend's perpective, thread PTID is running.  */
-extern int is_running (ptid_t ptid);
-
-/* Is this thread listed, but known to have exited?  We keep it listed
-   (but not visible) until it's safe to delete.  */
-extern int is_exited (ptid_t ptid);
-
-/* In the frontend's perpective, is this thread stopped?  */
-extern int is_stopped (ptid_t ptid);
-
 /* Marks thread PTID as executing, or not.  If PTID is minus_one_ptid,
    marks all threads.
 
@@ -616,31 +612,8 @@ extern void finish_thread_state (ptid_t ptid);
 
 /* Calls finish_thread_state on scope exit, unless release() is called
    to disengage.  */
-class scoped_finish_thread_state
-{
-public:
-  explicit scoped_finish_thread_state (ptid_t ptid)
-    : m_ptid (ptid)
-  {}
-
-  ~scoped_finish_thread_state ()
-  {
-    if (!m_released)
-      finish_thread_state (m_ptid);
-  }
-
-  /* Disengage.  */
-  void release ()
-  {
-    m_released = true;
-  }
-
-  DISABLE_COPY_AND_ASSIGN (scoped_finish_thread_state);
-
-private:
-  bool m_released = false;
-  ptid_t m_ptid;
-};
+using scoped_finish_thread_state
+  = FORWARD_SCOPE_EXIT (finish_thread_state);
 
 /* Commands with a prefix of `thread'.  */
 extern struct cmd_list_element *thread_cmd_list;
@@ -649,7 +622,7 @@ extern void thread_command (const char *tidstr, int from_tty);
 
 /* Print notices on thread events (attach, detach, etc.), set with
    `set print thread-events'.  */
-extern int print_thread_events;
+extern bool print_thread_events;
 
 /* Prints the list of threads and their details on UIOUT.  If
    REQUESTED_THREADS, a list of GDB ids/ranges, is not NULL, only
@@ -658,7 +631,8 @@ extern int print_thread_events;
    all attached PIDs are printed.  If both REQUESTED_THREADS is not
    NULL and PID is not -1, then the thread is printed if it belongs to
    the specified process.  Otherwise, an error is raised.  */
-extern void print_thread_info (struct ui_out *uiout, char *requested_threads,
+extern void print_thread_info (struct ui_out *uiout,
+                              const char *requested_threads,
                               int pid);
 
 /* Save/restore current inferior/thread/frame.  */