Re: [PATCH] Fix PR server/15959

[Yao Qi <yao@codesourcery.com>]

On 09/17/2013 11:57 PM, Pedro Alves wrote:
> Missing space after parens (you added it in "marker").
> 
>> >+{
>> >+  d = getenv("TEST");
> Here too.
> 

Fixed.

>> >+
>> >+  marker ();
>> >+
>> >+  return 0;
>> >+}
> I think the test will fail on Windows, because there's no
> "env" binary there.  I think we should first try to see
> if running "env" works, with "remote_exec target", and
> mark the test UNSUPPORTED if it doesn't.

We are testing mingw32 native gdb in cygwin, so "env" is there (shipped
from cygwin), but gdbserver is still unable to create process with
"env TEST=1".

$ gdbserver/gdbserver.exe --wrapper env TEST=1 -- :1234 /bin/ls
Error creating process "env TEST=1 /bin/ls", (error 2): The system
cannot find the file specified.

I mark test unsupported and return on mingw target in the updated patch.

> 
> Otherwise it looks good to me.

Below is what I committed.

-- 
Yao (齐尧)

gdb/gdbserver:

2013-09-18  Yao Qi  <yao@codesourcery.com>

	PR server/15959
	* server.c (start_inferior): Clear 'resume_info'.

gdb/testsuite/

2013-09-18  Yao Qi  <yao@codesourcery.com>

	* gdb.server/wrapper.c: New.
	* gdb.server/wrapper.exp: New.
---
 gdb/gdbserver/server.c               |    1 +
 gdb/testsuite/gdb.server/wrapper.c   |   34 +++++++++++++++++++++
 gdb/testsuite/gdb.server/wrapper.exp |   53 ++++++++++++++++++++++++++++++++++
 3 files changed, 88 insertions(+), 0 deletions(-)
 create mode 100644 gdb/testsuite/gdb.server/wrapper.c
 create mode 100644 gdb/testsuite/gdb.server/wrapper.exp

diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index f4e1525..4de20d5 100644
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -256,6 +256,7 @@ start_inferior (char **argv)
     {
       struct thread_resume resume_info;
 
+      memset (&resume_info, 0, sizeof (resume_info));
       resume_info.thread = pid_to_ptid (signal_pid);
       resume_info.kind = resume_continue;
       resume_info.sig = 0;
diff --git a/gdb/testsuite/gdb.server/wrapper.c b/gdb/testsuite/gdb.server/wrapper.c
new file mode 100644
index 0000000..e98c6a6
--- /dev/null
+++ b/gdb/testsuite/gdb.server/wrapper.c
@@ -0,0 +1,34 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2013 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <stdlib.h>
+
+static char *d = NULL;
+
+static void
+marker (void)
+{}
+
+int
+main (void)
+{
+  d = getenv ("TEST");
+
+  marker ();
+
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.server/wrapper.exp b/gdb/testsuite/gdb.server/wrapper.exp
new file mode 100644
index 0000000..5b2e2b7
--- /dev/null
+++ b/gdb/testsuite/gdb.server/wrapper.exp
@@ -0,0 +1,53 @@
+# This testcase is part of GDB, the GNU debugger.
+
+# Copyright 2013 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Test --wrapper option of GDBserver.
+
+load_lib gdbserver-support.exp
+
+standard_testfile
+
+if { [skip_gdbserver_tests] } {
+    return 0
+}
+
+if [istarget *-*-mingw*] {
+    unsupported "Command env doesn't exist on Windows."
+    return -1
+}
+
+if { [prepare_for_testing $testfile.exp $testfile $srcfile debug] } {
+    return -1
+}
+
+# Make sure we're disconnected, in case we're testing with an
+# extended-remote board, therefore already connected.
+gdb_test "disconnect" ".*"
+
+set target_exec [gdbserver_download_current_prog]
+# Start GDBserver with option '--wrapper'.
+set res [gdbserver_start "--wrapper env TEST=1 --" $target_exec]
+
+set gdbserver_protocol [lindex $res 0]
+set gdbserver_gdbport [lindex $res 1]
+gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport
+
+gdb_breakpoint marker
+gdb_test "continue" "Breakpoint.* marker .*" "continue to marker"
+# Test env var TEST is correctly passed to the program through
+# --wrapper.
+gdb_test "print d" "\\$${decimal} = ${hex} \"1\".*"
-- 
1.7.7.6