Re: [PATCH] Implement ${board}_{exec,spawn} for native-extended-gdbserver

[Pedro Alves <palves at redhat dot com>]

On 02/04/2015 02:05 PM, Pedro Alves wrote:
> On 02/04/2015 12:20 AM, Sergio Durigan Junior wrote:

>> -# By default, dejagnu makes the board remote unless the board name
>> -# matches localhost.  Force it to be NOT remote.
>> -global board
>> -global board_info
>> -set board_info($board,isremote) 0
> 
> I don't think we can/should remove this.  That'll make
> "is_remote" checks all over the testsuite return true,
> and thus skip tests that weren't skipped before.  E.g.,
> solib-display.exp.

I've confirmed this.

> I think we need to instead do here what ${board}_spawn
> is already doing.  That is, remove any target variant
> specifications from $board, like:
> 
>  --- a/gdb/testsuite/boards/native-extended-gdbserver.exp
>  +++ b/gdb/testsuite/boards/native-extended-gdbserver.exp
>  @@ -27,7 +27,9 @@ load_board_description "gdbserver-base"
>   # matches localhost.  Force it to be NOT remote.
>   global board
>   global board_info
>  -set board_info($board,isremote) 0
>  +# Remove any target variant specifications from the name.
>  +set baseboard [lindex [split $board "/"] 0]
>  +set board_info($baseboard,isremote) 0
> 
> I'm testing that.

It works.  I've pushed the patch below now, to unblock the builder.

More could/should be done though.  A number of boards do "set_board_info isremote 0",
so should be failing in the same way.  Sounds like it'd be good to have a
shared file all those boards would source, and we'd move
native-extended-gdbserver.exp's version there.  (TBC, I'm not planning on
doing that myself.)

--- 
>From 42d9e5288b6576b56f3f803901433b88ee863bc6 Mon Sep 17 00:00:00 2001
From: Pedro Alves <palves@redhat.com>
Date: Wed, 4 Feb 2015 14:53:24 +0100
Subject: [PATCH] Fix '--target_board=native-extended-gdbserver/-m32'

Running the testsuite with the native-extended-gdbserver.exp board and
passing a variant spec, like

  make check RUNTESTFLAGS="--target_board=native-extended-gdbserver/-m32"

results in dejagnu trying to open a rsh connection to
"native-extended-gdbserver", which of course is wrong.  The point of
this board is running things locally.

The issue is that the native-extended-gdbserver board does not clear
the "isremote" flag properly.

Reported by Sergio at:
  https://sourceware.org/ml/gdb-patches/2015-02/msg00067.html

testsuite/
2015-02-04  Pedro Alves  <palves@redhat.com>

	* boards/native-extended-gdbserver.exp: Remove any target variant
	specifications from the board name before clearing the isremote
	flag from board_info.
---
 gdb/testsuite/ChangeLog                            | 6 ++++++
 gdb/testsuite/boards/native-extended-gdbserver.exp | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 2657987..fcc16cb 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2015-02-04  Pedro Alves  <palves@redhat.com>
+
+	* boards/native-extended-gdbserver.exp: Remove any target variant
+	specifications from the board name before clearing the isremote
+	flag from board_info.
+
 2015-01-31  Doug Evans  <xdje42@gmail.com>
 
 	* gdb.base/maint.exp <maint print type argc>: Update expected output.
diff --git a/gdb/testsuite/boards/native-extended-gdbserver.exp b/gdb/testsuite/boards/native-extended-gdbserver.exp
index 57503db..8d299ef 100644
--- a/gdb/testsuite/boards/native-extended-gdbserver.exp
+++ b/gdb/testsuite/boards/native-extended-gdbserver.exp
@@ -27,7 +27,9 @@ load_board_description "gdbserver-base"
 # matches localhost.  Force it to be NOT remote.
 global board
 global board_info
-set board_info($board,isremote) 0
+# Remove any target variant specifications from the name.
+set baseboard [lindex [split $board "/"] 0]
+set board_info($baseboard,isremote) 0
 
 set_board_info sockethost "localhost:"
 
-- 
1.9.3