[committed][gdb/testsuite] Add target board gold-gdb-index

[Tom de Vries <tdevries@suse.de>]

Hi,

Add new target board that uses gold to add a .gdb_index section, enabled by
-ggnu-pubnames.

Tested on x86_64-linux.

Committed to trunk.

Thanks,
- Tom

[gdb/testsuite] Add target board gold-gdb-index

gdb/testsuite/ChangeLog:

2020-05-25  Tom de Vries  <tdevries@suse.de>

	* boards/gold-gdb-index.exp: New file.

---
 gdb/testsuite/boards/gold-gdb-index.exp | 45 +++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/gdb/testsuite/boards/gold-gdb-index.exp b/gdb/testsuite/boards/gold-gdb-index.exp
new file mode 100644
index 0000000000..e9d69f2468
--- /dev/null
+++ b/gdb/testsuite/boards/gold-gdb-index.exp
@@ -0,0 +1,45 @@
+# Copyright 2020 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/>.
+
+# This file is a dejagnu "board file" and is used to run the testsuite
+# with gold --gdb-index.
+#
+# Example usage:
+# bash$ make check RUNTESTFLAGS='--target_board=gold-gdb-index'
+
+load_board_description "local-board"
+
+# This is based on baseboards/unix.exp.
+# At the moment we only support systems that unix.exp supports.
+load_generic_config "unix"
+process_multilib_options ""
+set found_gcc [find_gcc]
+set found_gxx [find_g++]
+set found_gnatmake [find_gnatmake]
+set found_f90 [find_gfortran]
+set found_f77 [find_g77]
+set_board_info compiler "$found_gcc"
+
+set opts [list]
+lappend opts \
+    "-g" \
+    "-Wl,--gdb-index" \
+    "-fuse-ld=gold"
+
+# Note: Gold also produces an index when -ggnu-pubnames is not used.  Comment
+# out this line to exercise this scenario.
+lappend opts -ggnu-pubnames
+
+set_board_info debug_flags [join $opts]