[binutils-gdb] [gdb/testsuite] Use ssh -t in remote-*.exp

[Tom de Vries]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=58d8e5fab3798ed91378b661088f5e6b175bbd98

commit 58d8e5fab3798ed91378b661088f5e6b175bbd98
Author: Tom de Vries <tdevries@suse.de>
Date:   Sat Oct 29 09:43:32 2022 +0200

    [gdb/testsuite] Use ssh -t in remote-*.exp
    
    When running test-case gdb.server/multi-ui-errors.exp on target board
    remote-gdbserver-on-localhost.exp, I run into:
    ...
    (gdb) PASS: gdb.server/multi-ui-errors.exp: connect to gdbserver
    continue^M
    Continuing.^M
    PASS: gdb.server/multi-ui-errors.exp: continue - extra UI
    Remote debugging from host ::1, port 35466^M
    FAIL: gdb.server/multi-ui-errors.exp: ensure inferior is running
    ...
    
    The problem is that the target board uses ssh -T, which fails to guarantee
    that output from the inferior will be available.
    
    Fix this by copying proc ${board}_spawn from local-remote-host.exp, which
    ensures using ssh -t.  [ It would be nice to define an ssh base board to
    get rid of the copies, but I'm not addressing that in this commit. ]
    
    Likewise for target board remote-stdio-gdbserver.exp.
    
    Tested on x86_64-linux.

Diff:
---
 gdb/testsuite/boards/remote-gdbserver-on-localhost.exp | 12 ++++++++++++
 gdb/testsuite/boards/remote-stdio-gdbserver.exp        | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/gdb/testsuite/boards/remote-gdbserver-on-localhost.exp b/gdb/testsuite/boards/remote-gdbserver-on-localhost.exp
index 27224d39d0b..dacbbfb6f28 100644
--- a/gdb/testsuite/boards/remote-gdbserver-on-localhost.exp
+++ b/gdb/testsuite/boards/remote-gdbserver-on-localhost.exp
@@ -32,6 +32,18 @@ set_board_info protocol standard
 set_board_info username $env(USER)
 set_board_info hostname localhost
 
+proc ${board}_spawn { board cmd } {
+    global board_info
+
+    set remote [board_info $board hostname]
+    set username [board_info $board username]
+    set RSH [board_info $board rsh_prog]
+
+    spawn $RSH -t -l $username $remote $cmd
+    set board_info($board,fileid) $spawn_id
+    return $spawn_id
+}
+
 # We will be using the standard GDB remote protocol
 set_board_info gdb_protocol "remote"
 
diff --git a/gdb/testsuite/boards/remote-stdio-gdbserver.exp b/gdb/testsuite/boards/remote-stdio-gdbserver.exp
index e1a2d0ed007..498526b7870 100644
--- a/gdb/testsuite/boards/remote-stdio-gdbserver.exp
+++ b/gdb/testsuite/boards/remote-stdio-gdbserver.exp
@@ -78,3 +78,15 @@ proc ${board}_file { dest op args } {
     }
     return [eval [list standard_file $dest $op] $args]
 }
+
+proc ${board}_spawn { board cmd } {
+    global board_info
+
+    set remote [board_info $board hostname]
+    set username [board_info $board username]
+    set RSH [board_info $board rsh_prog]
+
+    spawn $RSH -t -l $username $remote $cmd
+    set board_info($board,fileid) $spawn_id
+    return $spawn_id
+}