gdbserver/Windows: crash during connection establishment phase

[deliverable/binutils-gdb.git] / gdb / x86-bsd-nat.c

diff --git a/gdb/x86-bsd-nat.c b/gdb/x86-bsd-nat.c
index 1998476cc16dd403aad2978e5380d21d77ad1c04..542bcd060335f2509a0c9b19b7c4fff06cf9084d 100644 (file)
--- a/gdb/x86-bsd-nat.c
+++ b/gdb/x86-bsd-nat.c
@@ -1,6 +1,6 @@
 /* Native-dependent code for X86 BSD's.
 
-   Copyright (C) 2003-2016 Free Software Foundation, Inc.
+   Copyright (C) 2003-2018 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -40,22 +40,17 @@ size_t x86bsd_xsave_len;
 /* Support for debug registers.  */
 
 #ifdef HAVE_PT_GETDBREGS
-static void (*super_mourn_inferior) (struct target_ops *ops);
 
-/* Implement the "to_mourn_inferior" target_ops method.  */
-
-static void
-x86bsd_mourn_inferior (struct target_ops *ops)
-{
-  x86_cleanup_dregs ();
-  super_mourn_inferior (ops);
-}
-
-/* Not all versions of FreeBSD/i386 that support the debug registers
-   have this macro.  */
+/* Helper macro to access debug register X.  FreeBSD/amd64 and modern
+   versions of FreeBSD/i386 provide this macro in system headers.  Define
+   a local version for systems that do not provide it.  */
 #ifndef DBREG_DRX
+#ifdef __NetBSD__
+#define DBREG_DRX(d, x) ((d)->dr[x])
+#else
 #define DBREG_DRX(d, x) ((&d->dr0)[x])
 #endif
+#endif
 
 static unsigned long
 x86bsd_dr_get (ptid_t ptid, int regnum)
@@ -129,28 +124,15 @@ x86bsd_dr_get_control (void)
 
 #endif /* PT_GETDBREGS */
 
-/* Create a prototype *BSD/x86 target.  The client can override it
-   with local methods.  */
-
-struct target_ops *
-x86bsd_target (void)
+void
+_initialize_x86_bsd_nat ()
 {
-  struct target_ops *t;
-
-  t = inf_ptrace_target ();
-
 #ifdef HAVE_PT_GETDBREGS
-  x86_use_watchpoints (t);
-
   x86_dr_low.set_control = x86bsd_dr_set_control;
   x86_dr_low.set_addr = x86bsd_dr_set_addr;
   x86_dr_low.get_addr = x86bsd_dr_get_addr;
   x86_dr_low.get_status = x86bsd_dr_get_status;
   x86_dr_low.get_control = x86bsd_dr_get_control;
   x86_set_debug_register_length (sizeof (void *));
-  super_mourn_inferior = t->to_mourn_inferior;
-  t->to_mourn_inferior = x86bsd_mourn_inferior;
 #endif /* HAVE_PT_GETDBREGS */
-
-  return t;
 }