PR c++/14999:

	* dwarf2loc.c (dwarf2_compile_expr_to_ax) <DW_OP_fbreg>:
	Call require_rvalue.
gdb/testsuite
	* gdb.dwarf2/trace-crash.s: New file.
	* gdb.dwarf2/trace-crash.exp: New file.

1 files changed, 41 insertions, 0 deletions

diff --git a/gdb/testsuite/gdb.dwarf2/trace-crash.exp b/gdb/testsuite/gdb.dwarf2/trace-crash.exp
new file mode 100644
index 0000000..7331868
--- /dev/null
+++ b/gdb/testsuite/gdb.dwarf2/trace-crash.exp
@@ -0,0 +1,41 @@
+# 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/>.
+
+load_lib dwarf.exp
+load_lib trace-support.exp
+
+# This test can only be run on targets which support DWARF-2 and use gas.
+if {![dwarf2_support]} {
+    return 0  
+}
+
+# This test can only be run on x86-64 targets.
+if {![istarget x86_64-*] || ![is_lp64_target]} {
+    return 0
+}
+
+standard_testfile .S
+
+if {[prepare_for_testing "${testfile}.exp" "${testfile}" ${testfile}.S \
+	 nodebug]} {
+    return -1
+}
+
+gdb_test "trace ${testfile}.c:3" "Tracepoint $decimal .*" \
+    "set tracepoint"
+
+# This is a regression test for a crash when converting a DWARF
+# expression to AX.
+gdb_trace_setactions "set tracepoint actions" "" "collect x" "^$"