X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gdb%2Flinux-nat.h;h=621737035dbec57835345491bbb5d9df0b5f9668;hb=b7761f11062dc4d4fd554342ac2d2fb235b65b7a;hp=fec51393bd7539268cd639f0f3ec0c3406140472;hpb=5b009018d2759269b0fd192077a391c795ebfa97;p=binutils-gdb.git

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index fec51393bd7..621737035db 100644
--- 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
-   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;
 
@@ -62,6 +80,18 @@ struct lwp_info
      be the address of a hardware watchpoint.  */
   struct siginfo siginfo;
 
+  /* STOPPED_BY_WATCHPOINT is non-zero if this LWP stopped with a data
+     watchpoint trap.  */
+  int stopped_by_watchpoint;
+
+  /* On architectures where it is possible to know the data address of
+     a triggered watchpoint, STOPPED_DATA_ADDRESS_P is non-zero, and
+     STOPPED_DATA_ADDRESS contains such data address.  Otherwise,
+     STOPPED_DATA_ADDRESS_P is false, and STOPPED_DATA_ADDRESS is
+     undefined.  Only valid if STOPPED_BY_WATCHPOINT is true.  */
+  int stopped_data_address_p;
+  CORE_ADDR stopped_data_address;
+
   /* Non-zero if we expect a duplicated SIGINT.  */
   int ignore_sigint;
 
@@ -70,6 +100,19 @@ struct lwp_info
      or to a local variable in lin_lwp_wait.  */
   struct target_waitstatus waitstatus;
 
+  /* Signal wether we are in a SYSCALL_ENTRY or
+     in a SYSCALL_RETURN event.
+     Values:
+     - TARGET_WAITKIND_SYSCALL_ENTRY
+     - TARGET_WAITKIND_SYSCALL_RETURN */
+  int syscall_state;
+
+  /* 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;
 };
@@ -79,12 +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)
@@ -96,19 +138,32 @@ void check_for_thread_db (void);
 
 int thread_db_attach_lwp (ptid_t ptid);
 
+/* Return the set of signals used by the threads library.  */
+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);
+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 (int (*callback) (struct lwp_info *, 
+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);
@@ -123,7 +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
@@ -133,9 +188,21 @@ 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);
 
 /* Return the saved siginfo associated with PTID.  */
 struct siginfo *linux_nat_get_siginfo (ptid_t ptid);
+
+/* Compute and return the processor core of a given thread.  */
+int linux_nat_core_of_thread_1 (ptid_t ptid);
+
+/* Set alternative SIGTRAP-like events recognizer.  */
+void linux_nat_set_status_is_event (struct target_ops *t,
+				    int (*status_is_event) (int status));