1 files changed, 75 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c b/sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c
new file mode 100644
index 0000000000..31ee88cd62
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/tst-setjmp-bug21895-static.c
@@ -0,0 +1,75 @@
+/* Test setjmp interoperability with static dlopen BZ #21895.
+   Copyright (C) 2017-2018 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <setjmp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+
+/* Set TOC area pointed by sp to zero.  */
+#define SET_TOC_TO_ZERO(sp)					 \
+  ({								 \
+    unsigned int zero = 0;					 \
+    asm volatile ("std %0, 24(%1)\n\t" :: "r" (zero), "r" (sp)); \
+  })
+
+static void
+bar (jmp_buf jb, unsigned long sp)
+{
+  static int i;
+  if (i++==1)
+    exit(0);	/* Success.  */
+
+  /* This will set TOC are on caller frame (foo) to zero. __longjmp
+     must restore r2 otherwise a segmentation fault will happens after
+     it jumps back to foo.  */
+  SET_TOC_TO_ZERO(sp);
+  longjmp(jb, i);
+}
+
+static int
+do_test (void)
+{
+  void *h = dlopen("setjmp-bug21895.so", RTLD_NOW);
+  if (!h)
+    {
+      puts(dlerror());
+      return 1;
+    }
+
+  void (*pfoo)(void) = dlsym(h, "foo");
+  if (!pfoo)
+    {
+      puts(dlerror());
+      return 1;
+    }
+
+  void (**ppbar)(jmp_buf, unsigned long) = dlsym(h, "bar");
+  if (!ppbar)
+    {
+      puts(dlerror());
+      return 1;
+    }
+
+  *ppbar = bar;
+  pfoo();
+
+  for(;;);
+}
+
+#include <support/test-driver.c>