lwp_info: Make the arch code free arch_lwp_info

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

diff --git a/gdb/linux-nat.h b/gdb/linux-nat.h
index f5ec74ed180ddebc329b646e40359f63642e9450..c00267959d15c0a80696b56be02dd78d1481960d 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) 2000-2017 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -37,11 +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 +88,7 @@ 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
@@ -106,7 +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;
 };
 
@@ -168,6 +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,