[commit][PATCH 1/3] Make remote follow fork 'Detaching' message match native

[Don Breazeal <donb@codesourcery.com>]

This patch fixes a couple of failures in gdb.base/foll-vfork.exp for
extended-remote targets.  The failures were the result of the
verbose/debug "Detaching..." messages in infrun.c:follow_fork_inferior
not matching what was expected in the extended-remote case.

The path modifies the ptids used in the messages to ensure that they
print "process nnn" instead of (possibly) "Thread nnn.nnn".  The
detach is a process-wide operation, so we need to use a process-
style ptid regardless of what type of ptid target_pid_to_str returns.

Tested on x86_64 GNU/Linux, native, remote, extended-remote.

gdb/

	* infrun.c (follow_fork_inferior): Ensure the use of
	process-style ptids (pid,0,0) in verbose/debug "Detaching"
	messages.
---
 gdb/ChangeLog |  6 ++++++
 gdb/infrun.c  | 10 ++++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index bd0292b..ab10166 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2015-05-28  Don Breazeal  <donb@codesourcery.com>
+
+	* infrun.c (follow_fork_inferior): Ensure the use of
+	process-style ptids (pid,0,0) in verbose/debug "Detaching"
+	messages.
+
 2015-05-28  Doug Evans  <dje@google.com>
 
 	* dwarf2read.c (record_line_ftype): Remove, duplicate.
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 2f6bc41..d8eb0b0 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -445,11 +445,14 @@ holding the child stopped.  Try \"set detach-on-fork\" or \
 
 	  if (info_verbose || debug_infrun)
 	    {
+	      /* Ensure that we have a process ptid.  */
+	      ptid_t process_ptid = pid_to_ptid (ptid_get_pid (child_ptid));
+
 	      target_terminal_ours_for_output ();
 	      fprintf_filtered (gdb_stdlog,
 				_("Detaching after %s from child %s.\n"),
 				has_vforked ? "vfork" : "fork",
-				target_pid_to_str (child_ptid));
+				target_pid_to_str (process_ptid));
 	    }
 	}
       else
@@ -578,11 +581,14 @@ holding the child stopped.  Try \"set detach-on-fork\" or \
 	{
 	  if (info_verbose || debug_infrun)
 	    {
+	      /* Ensure that we have a process ptid.  */
+	      ptid_t process_ptid = pid_to_ptid (ptid_get_pid (child_ptid));
+
 	      target_terminal_ours_for_output ();
 	      fprintf_filtered (gdb_stdlog,
 				_("Detaching after fork from "
 				  "child %s.\n"),
-				target_pid_to_str (child_ptid));
+				target_pid_to_str (process_ptid));
 	    }
 
 	  target_detach (NULL, 0);
-- 
1.8.1.1