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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Fedora GDB patches <invalid@email.com>
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Date: Fri, 27 Oct 2017 21:07:50 +0200
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Subject: gdb-rhbz947564-findvar-assertion-frame-failed-testcase.patch
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;; Import regression test for `gdb/findvar.c:417: internal-error:
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;; read_var_value: Assertion `frame' failed.' (RH BZ 947564) from RHEL 6.5.
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;;=fedoratest
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diff --git a/gdb/testsuite/gdb.threads/tls-rhbz947564.cc b/gdb/testsuite/gdb.threads/tls-rhbz947564.cc
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.threads/tls-rhbz947564.cc
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@@ -0,0 +1,53 @@
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+#include <iostream>
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+#include <pthread.h>
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+
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+class x
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+ {
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+ public:
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+ int n;
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+
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+ x() : n(0) {}
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+ };
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+
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+class y
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+ {
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+ public:
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+ int v;
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+
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+ y() : v(0) {}
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+ static __thread x *xp;
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+ };
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+
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+__thread x *y::xp;
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+
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+static void
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+foo (y *yp)
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+{
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+ yp->v = 1; /* foo_marker */
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+}
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+
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+static void *
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+bar (void *unused)
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+{
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+ x xinst;
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+ y::xp= &xinst;
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+
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+ y yy;
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+ foo(&yy;;
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+
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+ return NULL;
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+}
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+
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+int
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+main(int argc, char *argv[])
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+{
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+ pthread_t t[2];
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+
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+ pthread_create (&t[0], NULL, bar, NULL);
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+ pthread_create (&t[1], NULL, bar, NULL);
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+
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+ pthread_join (t[0], NULL);
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+ pthread_join (t[1], NULL);
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+
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+ return 0;
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+}
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diff --git a/gdb/testsuite/gdb.threads/tls-rhbz947564.exp b/gdb/testsuite/gdb.threads/tls-rhbz947564.exp
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new file mode 100644
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--- /dev/null
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+++ b/gdb/testsuite/gdb.threads/tls-rhbz947564.exp
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@@ -0,0 +1,75 @@
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+# Copyright (C) 2013 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 3 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program. If not, see <http://www.gnu.org/licenses/>. */
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+
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+set testfile tls-rhbz947564
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+set srcfile ${testfile}.cc
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+set binfile [standard_output_file ${testfile}]
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+
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+if [istarget "*-*-linux"] then {
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+ set target_cflags "-D_MIT_POSIX_THREADS"
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+} else {
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+ set target_cflags ""
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+}
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+
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+if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable [list c++ debug]] != "" } {
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+ return -1
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+}
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+
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+gdb_load ${binfile}
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+
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+if { ![runto_main] } {
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+ fail "Can't run to function main"
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+ return 0
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+}
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+
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+gdb_breakpoint "foo"
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+gdb_continue_to_breakpoint "foo" ".* foo_marker .*"
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+
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+proc get_xp_val {try} {
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+ global expect_out
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+ global gdb_prompt
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+ global hex
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+
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+ set xp_val ""
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+ gdb_test_multiple "print *yp" "print yp value" {
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+ -re { = \{v = 0, static xp = (0x[0-9a-f]+)\}.* } {
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+ pass "print $try value of *yp"
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+ set xp_val $expect_out(1,string)
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+ }
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+ -re "$gdb_prompt $" {
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+ fail "print $try value of *yp"
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+ }
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+ timeout {
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+ fail "print $try value of *yp (timeout)"
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+ }
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+ }
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+ return $xp_val
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+}
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+
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+set first_run [get_xp_val "first"]
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+
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+gdb_test "continue" "Breakpoint \[0-9\]+, foo \\\(yp=$hex\\\) at.*"
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+
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+set second_run [get_xp_val "second"]
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+
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+if { $first_run != $second_run } {
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+ pass "different values for TLS variable"
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+} else {
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+ fail "different values for TLS variable"
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+}
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