[PATCH] Testsuite: Add gdbserver sysroot test

[Alan Hayward]

The local board file ensures that the sysroot is always set to load
files from the local filesystem.

Add a gdbserver test to explicitly test the sysroot set to both the
remote target and the local filesystem.

gdb/testsuite/ChangeLog:

2019-04-08  Alan Hayward  <alan.hayward@arm.com>

	* gdb.server/sysroot.c: New test.
	* gdb.server/sysroot.exp: New file.
---
 gdb/testsuite/gdb.server/sysroot.c   | 25 +++++++++++++
 gdb/testsuite/gdb.server/sysroot.exp | 55 ++++++++++++++++++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 gdb/testsuite/gdb.server/sysroot.c
 create mode 100644 gdb/testsuite/gdb.server/sysroot.exp

diff --git a/gdb/testsuite/gdb.server/sysroot.c b/gdb/testsuite/gdb.server/sysroot.c
new file mode 100644
index 0000000000..6fc1443e3b
--- /dev/null
+++ b/gdb/testsuite/gdb.server/sysroot.c
@@ -0,0 +1,25 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+   Copyright 2019 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 <stdio.h>
+
+int
+main ()
+{
+  printf("Hello World!\n");
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.server/sysroot.exp b/gdb/testsuite/gdb.server/sysroot.exp
new file mode 100644
index 0000000000..9db833fc7e
--- /dev/null
+++ b/gdb/testsuite/gdb.server/sysroot.exp
@@ -0,0 +1,55 @@
+# This testcase is part of GDB, the GNU debugger.
+#
+# Copyright 2019 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 GDB can correct read the binary with different sysroot setups.
+
+load_lib gdbserver-support.exp
+
+if { [skip_gdbserver_tests] } {
+    verbose "skipping gdbserver tests"
+    return -1
+}
+
+standard_testfile
+if [prepare_for_testing "failed to prepare" $testfile $srcfile "additional_flags=--no-builtin"] {
+    return -1
+}
+
+# Run once with sysroot set to the remote target and once to the local filesystem.
+foreach_with_prefix sysroot {"target:" "/"} {
+
+    # Make sure we're disconnected, in case we're testing with an
+    # extended-remote board, therefore already connected.
+    gdb_test "disconnect" ".*"
+
+    # Start GDBserver.
+    set res [gdbserver_start "" $binfile]
+    set gdbserver_protocol [lindex $res 0]
+    set gdbserver_gdbport [lindex $res 1]
+
+    # Set the sysroot.
+    gdb_test_no_output "set sysroot $sysroot"
+
+    gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport
+
+    gdb_breakpoint main
+    gdb_test "continue" "Breakpoint $decimal.* main.*" "continue to main"
+
+    # Test we can stop inside a library.
+    gdb_breakpoint printf
+    gdb_test "continue" "Breakpoint $decimal.* printf.*" "continue to printf"
+}
-- 
2.20.1 (Apple Git-117)