Fix an annoying message ``gdb: ptrace(PT_GETDBREGS) failed: No such process''

when using gdb on a remote target.  The fix is to restrict PT_GETDBREGS
calls to `child' and `freebsd-uthreads' targets solely.

I've been in some conversation with Brian about this, and this solution
seems to be the most appropriate one.

PR:		gnu/21685
Submitted by:	bsd

1 files changed, 15 insertions, 0 deletions

diff --git a/gnu/usr.bin/binutils/gdb/i386/freebsd-nat.c b/gnu/usr.bin/binutils/gdb/i386/freebsd-nat.c
index 6d6cd7a..3fff89e 100644
--- a/gnu/usr.bin/binutils/gdb/i386/freebsd-nat.c
+++ b/gnu/usr.bin/binutils/gdb/i386/freebsd-nat.c
@@ -478,6 +478,11 @@ stopped_by_watchpoint()
 {
   struct dbreg dbr;
   extern int inferior_pid;
+
+  if (current_target.to_shortname == 0 ||
+      ! (strcmp(current_target.to_shortname, "child") == 0 ||
+	 strcmp(current_target.to_shortname, "freebsd-uthreads") == 0))
+    return 0;
   
   if (inferior_pid != 0 && core_bfd == NULL) 
     {
@@ -512,6 +517,11 @@ insert_watchpoint(addr, len, type)
   struct dbreg dbr;
   extern int inferior_pid;
   
+  if (current_target.to_shortname == 0 ||
+      ! (strcmp(current_target.to_shortname, "child") == 0 ||
+	 strcmp(current_target.to_shortname, "freebsd-uthreads") == 0))
+    return 0;
+  
   if (inferior_pid != 0 && core_bfd == NULL) 
     {
       int pid = inferior_pid & ((1 << 17) - 1);	/* XXX extract pid from tid */
@@ -607,6 +617,11 @@ remove_watchpoint(addr, len, type)
   struct dbreg dbr;
   extern int inferior_pid;
   
+  if (current_target.to_shortname == 0 ||
+      ! (strcmp(current_target.to_shortname, "child") == 0 ||
+	 strcmp(current_target.to_shortname, "freebsd-uthreads") == 0))
+    return 0;
+
   if (inferior_pid != 0 && core_bfd == NULL) 
     {
       int pid = inferior_pid & ((1 << 17) - 1);	/* XXX extract pid from tid */