* c-valprint.c (print_function_pointer_address): Move...

[deliverable/binutils-gdb.git] / gdb / linux-nat.h

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index 2987fab91d8893790e728176647c34e137fb49db..621737035dbec57835345491bbb5d9df0b5f9668 100644 (file)
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -1,7 +1,6 @@
 /* Native debugging support for GNU/Linux (LWP layer).
 
-   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-   2010, 2011 Free Software Foundation, Inc.
+   Copyright (C) 2000-2012 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -22,6 +21,22 @@
 
 #include <signal.h>
 
+struct arch_lwp_info;
+
+/* Ways to "resume" a thread.  */
+
+enum resume_kind
+{
+  /* Thread should continue.  */
+  resume_continue,
+
+  /* Thread should single-step.  */
+  resume_step,
+
+  /* Thread should be stopped.  */
+  resume_stop
+};
+
 /* Structure describing an LWP.  This is public only for the purposes
    of ALL_LWPS; target-specific code should generally not access it
    directly.  */
@@ -52,6 +67,9 @@ struct lwp_info
      didn't try to let the LWP run.  */
   int resumed;
 
+  /* The last resume GDB requested on this thread.  */
+  enum resume_kind last_resume_kind;
+
   /* If non-zero, a pending wait status.  */
   int status;
 
@@ -92,6 +110,9 @@ struct lwp_info
   /* The processor core this LWP was last seen on.  */
   int core;
 
+  /* Arch-specific additions.  */
+  struct arch_lwp_info *arch_private;
+
   /* Next LWP in list.  */
   struct lwp_info *next;
 };
@@ -101,12 +122,11 @@ struct lwp_info
    native target is active.  */
 extern struct lwp_info *lwp_list;
 
-/* Iterate over the PTID each active thread (light-weight process).  There
-   must be at least one.  */
-#define ALL_LWPS(LP, PTID)                                             \
-  for ((LP) = lwp_list, (PTID) = (LP)->ptid;                           \
+/* Iterate over each active thread (light-weight process).  */
+#define ALL_LWPS(LP)                                                   \
+  for ((LP) = lwp_list;                                                        \
        (LP) != NULL;                                                   \
-       (LP) = (LP)->next, (PTID) = (LP) ? (LP)->ptid : (PTID))
+       (LP) = (LP)->next)
 
 #define GET_LWP(ptid)          ptid_get_lwp (ptid)
 #define GET_PID(ptid)          ptid_get_pid (ptid)
@@ -122,23 +142,28 @@ int thread_db_attach_lwp (ptid_t ptid);
 extern void lin_thread_get_thread_signals (sigset_t *mask);
 
 /* Find process PID's pending signal set from /proc/pid/status.  */
-void linux_proc_pending_signals (int pid, sigset_t *pending, sigset_t *blocked, sigset_t *ignored);
-
-/* Return the TGID of LWPID from /proc/pid/status.  Returns -1 if not
-   found.  */
-extern int linux_proc_get_tgid (int lwpid);
+void linux_proc_pending_signals (int pid, sigset_t *pending,
+                                sigset_t *blocked, sigset_t *ignored);
 
 /* linux-nat functions for handling fork events.  */
 extern void linux_enable_event_reporting (ptid_t ptid);
 
 extern int lin_lwp_attach_lwp (ptid_t ptid);
 
+extern void linux_stop_lwp (struct lwp_info *lwp);
+
 /* Iterator function for lin-lwp's lwp list.  */
 struct lwp_info *iterate_over_lwps (ptid_t filter,
                                    int (*callback) (struct lwp_info *,
                                                     void *), 
                                    void *data);
 
+typedef int (*linux_nat_iterate_watchpoint_lwps_ftype) (struct lwp_info *lwp,
+                                                       void *arg);
+
+extern void linux_nat_iterate_watchpoint_lwps
+  (linux_nat_iterate_watchpoint_lwps_ftype callback, void *callback_data);
+
 /* Create a prototype generic GNU/Linux target.  The client can
    override it with local methods.  */
 struct target_ops * linux_target (void);
@@ -153,7 +178,7 @@ linux_trad_target (CORE_ADDR (*register_u_offset)(struct gdbarch *, int, int));
 void linux_nat_add_target (struct target_ops *);
 
 /* Register a method to call whenever a new thread is attached.  */
-void linux_nat_set_new_thread (struct target_ops *, void (*) (ptid_t));
+void linux_nat_set_new_thread (struct target_ops *, void (*) (struct lwp_info *));
 
 /* Register a method that converts a siginfo object between the layout
    that ptrace returns, and the layout in the architecture of the
@@ -163,6 +188,11 @@ void linux_nat_set_siginfo_fixup (struct target_ops *,
                                           gdb_byte *,
                                           int));
 
+/* Register a method to call prior to resuming a thread.  */
+
+void linux_nat_set_prepare_to_resume (struct target_ops *,
+                                     void (*) (struct lwp_info *));
+
 /* Update linux-nat internal state when changing from one fork
    to another.  */
 void linux_nat_switch_fork (ptid_t new_ptid);