diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-vwprintf_chk.c b/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-vwprintf_chk.c
new file mode 100644
index 0000000000..5e47dccc0d
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-vwprintf_chk.c
@@ -0,0 +1,30 @@
+/* Wrapper for __vwprintf_chk. IEEE128 version.
+ Copyright (C) 2019 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 <libio/libioP.h>
+
+extern int
+___ieee128_vwprintf_chk (int flag, const wchar_t *format, va_list ap)
+{
+ unsigned int mode = PRINTF_LDBL_USES_FLOAT128;
+ if (flag > 0)
+ mode |= PRINTF_FORTIFY;
+
+ return __vfwprintf_internal (stdout, format, ap, mode);
+}
+strong_alias (___ieee128_vwprintf_chk, __vwprintf_chkieee128)
diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-wprintf_chk.c b/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-wprintf_chk.c
new file mode 100644
index 0000000000..ba00b7be54
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/ieee128-wprintf_chk.c
@@ -0,0 +1,38 @@
+/* Wrapper for __wprintf_chk. IEEE128 version.
+ Copyright (C) 2019 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 <stdarg.h>
+#include <libio/libioP.h>
+
+extern int
+___ieee128_wprintf_chk (int flag, const wchar_t *format, ...)
+{
+ va_list ap;
+ int done;
+
+ unsigned int mode = PRINTF_LDBL_USES_FLOAT128;
+ if (flag > 0)
+ mode |= PRINTF_FORTIFY;
+
+ va_start (ap, format);
+ done = __vfwprintf_internal (stdout, format, ap, mode);
+ va_end (ap);
+
+ return done;
+}
+strong_alias (___ieee128_wprintf_chk, __wprintf_chkieee128)
diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ibm128.c b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ibm128.c
new file mode 100644
index 0000000000..5323df71e2
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ibm128.c
@@ -0,0 +1 @@
+#include <test-wprintf-chk-ldbl-compat.c>
diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ieee128.c b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ieee128.c
new file mode 100644
index 0000000000..5323df71e2
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ieee128.c
@@ -0,0 +1 @@
+#include <test-wprintf-chk-ldbl-compat.c>
diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ldbl-compat.c b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ldbl-compat.c
new file mode 100644
index 0000000000..f614004f27
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/test-wprintf-chk-ldbl-compat.c
@@ -0,0 +1,113 @@
+/* Test for the long double variants of *w*printf_chk functions.
+ Copyright (C) 2019 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/>. */
+
+#define _FORTIFY_SOURCE 2
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <wchar.h>
+
+#include <support/capture_subprocess.h>
+#include <support/check.h>
+
+static void
+do_test_call_varg (FILE *stream, const wchar_t *format, ...)
+{
+ wchar_t string[128];
+ va_list args;
+
+ wprintf (L"%20Ls", L"__vfwprintf_chk: ");
+ va_start (args, format);
+ __vfwprintf_chk (stream, 1, format, args);
+ va_end (args);
+ wprintf (L"\n");
+
+ wprintf (L"%20Ls", L"__vswprintf_chk: ");
+ va_start (args, format);
+ __vswprintf_chk (string, 79, 1, 127, format, args);
+ va_end (args);
+ wprintf (L"%Ls", string);
+ wprintf (L"\n");
+
+ wprintf (L"%20Ls", L"__vwprintf_chk: ");
+ va_start (args, format);
+ __vwprintf_chk (1, format, args);
+ va_end (args);
+ wprintf (L"\n");
+}
+
+static void
+do_test_call_rarg (FILE *stream, const wchar_t *format, long double ld)
+{
+ wchar_t string[128];
+
+ wprintf (L"%20Ls", L"__fwprintf_chk: ");
+ __fwprintf_chk (stream, 1, format, ld);
+ wprintf (L"\n");
+
+ wprintf (L"%20Ls", L"__swprintf_chk: ");
+ __swprintf_chk (string, 79, 1, 127, format, ld);
+ wprintf (L"%Ls", string);
+ wprintf (L"\n");
+
+ wprintf (L"%20Ls", L"__wprintf_chk: ");
+ __wprintf_chk (1, format, ld);
+ wprintf (L"\n");
+}
+
+static void
+do_test_call (void)
+{
+ long double ld = -1;
+
+ /* Print in decimal notation. */
+ do_test_call_rarg (stdout, L"%.10Lf", ld);
+ do_test_call_varg (stdout, L"%.10Lf", ld);
+
+ /* Print in hexadecimal notation. */
+ do_test_call_rarg (stdout, L"%.10La", ld);
+ do_test_call_varg (stdout, L"%.10La", ld);
+}
+
+static int
+do_test (void)
+{
+ struct support_capture_subprocess result;
+ result = support_capture_subprocess ((void *) &do_test_call, NULL);
+
+ /* Compare against the expected output. */
+ const char *expected =
+ " __fwprintf_chk: -1.0000000000\n"
+ " __swprintf_chk: -1.0000000000\n"
+ " __wprintf_chk: -1.0000000000\n"
+ " __vfwprintf_chk: -1.0000000000\n"
+ " __vswprintf_chk: -1.0000000000\n"
+ " __vwprintf_chk: -1.0000000000\n"
+ " __fwprintf_chk: -0x1.0000000000p+0\n"
+ " __swprintf_chk: -0x1.0000000000p+0\n"
+ " __wprintf_chk: -0x1.0000000000p+0\n"
+ " __vfwprintf_chk: -0x1.0000000000p+0\n"
+ " __vswprintf_chk: -0x1.0000000000p+0\n"
+ " __vwprintf_chk: -0x1.0000000000p+0\n";
+ TEST_COMPARE_STRING (expected, result.out.buffer);
+
+ return 0;
+}
+