Move some declarations to source.h

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

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index 669450dd1eac0c1c30ada228e3e5dd197ad0d510..9df3548c6b2188d96132fd0f98d090cd93983bcf 100644 (file)
--- a/gdb/linux-nat.h
+++ b/gdb/linux-nat.h
@@ -1,6 +1,6 @@
 /* Native debugging support for GNU/Linux (LWP layer).
 
-   Copyright (C) 2000-2015 Free Software Foundation, Inc.
+   Copyright (C) 2000-2018 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,30 +17,12 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
+#include "nat/linux-nat.h"
 #include "target.h"
-
 #include <signal.h>
 
 struct arch_lwp_info;
 
-/* Reasons an LWP last stopped.  */
-
-enum lwp_stop_reason
-{
-  /* Either not stopped, or stopped for a reason that doesn't require
-     special tracking.  */
-  LWP_STOPPED_BY_NO_REASON,
-
-  /* Stopped by a software breakpoint.  */
-  LWP_STOPPED_BY_SW_BREAKPOINT,
-
-  /* Stopped by a hardware breakpoint.  */
-  LWP_STOPPED_BY_HW_BREAKPOINT,
-
-  /* Stopped by a watchpoint.  */
-  LWP_STOPPED_BY_WATCHPOINT
-};
-
 /* Structure describing an LWP.  This is public only for the purposes
    of ALL_LWPS; target-specific code should generally not access it
    directly.  */
@@ -55,11 +37,6 @@ struct lwp_info
      next time we see this LWP stop.  */
   int must_set_ptrace_flags;
 
-  /* Non-zero if this LWP is cloned.  In this context "cloned" means
-     that the LWP is reporting to its parent using a signal other than
-     SIGCHLD.  */
-  int cloned;
-
   /* Non-zero if we sent this LWP a SIGSTOP (but the LWP didn't report
      it back yet).  */
   int signalled;
@@ -93,7 +70,7 @@ struct lwp_info
 
   /* The reason the LWP last stopped, if we need to track it
      (breakpoint, watchpoint, etc.)  */
-  enum lwp_stop_reason stop_reason;
+  enum target_stop_reason stop_reason;
 
   /* On architectures where it is possible to know the data address of
      a triggered watchpoint, STOPPED_DATA_ADDRESS_P is non-zero, and
@@ -111,12 +88,12 @@ 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
+  /* Signal whether we are in a SYSCALL_ENTRY or
      in a SYSCALL_RETURN event.
      Values:
      - TARGET_WAITKIND_SYSCALL_ENTRY
      - TARGET_WAITKIND_SYSCALL_RETURN */
-  int syscall_state;
+  enum target_waitkind syscall_state;
 
   /* The processor core this LWP was last seen on.  */
   int core;
@@ -124,7 +101,9 @@ struct lwp_info
   /* Arch-specific additions.  */
   struct arch_lwp_info *arch_private;
 
-  /* Next LWP in list.  */
+  /* Previous and next pointers in doubly-linked list of known LWPs,
+     sorted by reverse creation order.  */
+  struct lwp_info *prev;
   struct lwp_info *next;
 };
 
@@ -133,6 +112,9 @@ struct lwp_info
    native target is active.  */
 extern struct lwp_info *lwp_list;
 
+/* Does the current host support PTRACE_GETREGSET?  */
+extern enum tribool have_ptrace_getregset;
+
 /* Iterate over each active thread (light-weight process).  */
 #define ALL_LWPS(LP)                                                   \
   for ((LP) = lwp_list;                                                        \
@@ -142,7 +124,12 @@ extern struct lwp_info *lwp_list;
 /* Attempt to initialize libthread_db.  */
 void check_for_thread_db (void);
 
-int thread_db_attach_lwp (ptid_t ptid);
+/* Called from the LWP layer to inform the thread_db layer that PARENT
+   spawned CHILD.  Both LWPs are currently stopped.  This function
+   does whatever is required to have the child LWP under the
+   thread_db's control --- e.g., enabling event reporting.  Returns
+   true on success, false if the process isn't using libpthread.  */
+extern int thread_db_notice_clone (ptid_t parent, ptid_t child);
 
 /* Return the set of signals used by the threads library.  */
 extern void lin_thread_get_thread_signals (sigset_t *mask);
@@ -151,15 +138,16 @@ extern void lin_thread_get_thread_signals (sigset_t *mask);
 void linux_proc_pending_signals (int pid, sigset_t *pending,
                                 sigset_t *blocked, sigset_t *ignored);
 
-extern int lin_lwp_attach_lwp (ptid_t ptid);
+/* For linux_stop_lwp see nat/linux-nat.h.  */
 
-extern void linux_stop_lwp (struct lwp_info *lwp);
+/* Stop all LWPs, synchronously.  (Any events that trigger while LWPs
+   are being stopped are left pending.)  */
+extern void linux_stop_and_wait_all_lwps (void);
 
-/* 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);
+/* Set resumed LWPs running again, as they were before being stopped
+   with linux_stop_and_wait_all_lwps.  (LWPS with pending events are
+   left stopped.)  */
+extern void linux_unstop_all_lwps (void);
 
 /* Create a prototype generic GNU/Linux target.  The client can
    override it with local methods.  */
@@ -177,6 +165,9 @@ 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 (*) (struct lwp_info *));
 
+/* Register a method to call whenever a new thread is deleted.  */
+void linux_nat_set_delete_thread (struct target_ops *,
+                                 void (*) (struct arch_lwp_info *));
 
 /* Register a method to call whenever a new fork is attached.  */
 typedef void (linux_nat_new_fork_ftype) (struct lwp_info *parent,