S/390: Revert the jmp_buf/ucontext_t ABI change.

18 files changed, 87 insertions, 321 deletions

diff --git a/sysdeps/unix/sysv/linux/s390/Makefile b/sysdeps/unix/sysv/linux/s390/Makefile
index 768f926fb8..5c3ca69e71 100644
--- a/sysdeps/unix/sysv/linux/s390/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/Makefile
@@ -17,12 +17,6 @@ ifeq ($(subdir),elf)
 sysdep_routines += dl-vdso
 endif
 
-ifeq ($(subdir),debug)
-ifeq (yes,$(build-shared))
-sysdep_routines += v1-longjmp_chk
-endif
-endif
-
 ifeq ($(subdir),nptl)
 ifeq ($(enable-lock-elision),yes)
 libpthread-sysdep_routines += elision-lock elision-unlock elision-timed \
diff --git a/sysdeps/unix/sysv/linux/s390/getcontext.S b/sysdeps/unix/sysv/linux/s390/getcontext.S
deleted file mode 100644
index 5edbf95ccb..0000000000
--- a/sysdeps/unix/sysv/linux/s390/getcontext.S
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Extendible version of getcontext for System z
-   Copyright (C) 2013 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 <libc-symbols.h>
-#include <shlib-compat.h>
-
-versioned_symbol (libc, __v2getcontext, getcontext, GLIBC_2_19)
-#define __getcontext __v2getcontext
-
-#include "getcontext-common.S"
-
-#undef __getcontext
-
-libc_hidden_ver (__v2getcontext, getcontext)
-
-#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_19)
-# define __V1_UCONTEXT
-compat_symbol (libc, __v1getcontext, getcontext, GLIBC_2_1)
-# define __getcontext __v1getcontext
-# include "getcontext-common.S"
-# undef __getcontext
-
-#endif
diff --git a/sysdeps/unix/sysv/linux/s390/longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/longjmp_chk.c
index 10f542d61c..02c96c289a 100644
--- a/sysdeps/unix/sysv/linux/s390/longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/longjmp_chk.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2013 Free Software Foundation, Inc.
+/* Copyright (C) 2014 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
@@ -15,30 +15,34 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.
 
-   This is a copy of debug/longjmp_chk.c extended for symbol
-   versioning.  */
+   Versioned copy of debug/longjmp_chk.c modified for versioning
+   the reverted jmpbuf extension.  */
 
 #include <shlib-compat.h>
-#include <setjmp.h>
 
-/* This place is the only user of these functions.  */
-extern void ____v2__longjmp_chk (__jmp_buf __env, int __val)
+#if !defined NOT_IN_libc && defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+/* this is a copy from debug/longjmp_chk.c because we need an unique name
+   for __longjmp_chk, but it is already named via a define
+   for __libc_siglongjmp in debug/longjmp_chk.c.  */
+# include <setjmp.h>
+
+// XXX Should move to include/setjmp.h
+extern void ____longjmp_chk (__jmp_buf __env, int __val)
      __attribute__ ((__noreturn__));
 
-#if defined NOT_IN_libc
+# define __longjmp ____longjmp_chk
+# define __libc_siglongjmp __v1__longjmp_chk
 
-# define __v2__longjmp ____longjmp_chk
-# define __v2__libc_siglongjmp __longjmp_chk
+# include <setjmp/longjmp.c>
 
-# include <longjmp.c>
+/* In glibc release 2.19 a new versions of __longjmp_chk was introduced,
+   but was reverted before 2.20. Thus both versions are the same function.  */
+strong_alias (__v1__longjmp_chk, __v2__longjmp_chk);
+versioned_symbol (libc, __v1__longjmp_chk, __longjmp_chk, GLIBC_2_11);
+compat_symbol (libc, __v2__longjmp_chk, __longjmp_chk, GLIBC_2_19);
 
 #else
 
-# define __v2__longjmp ____v2__longjmp_chk
-# define __v2__libc_siglongjmp __v2__libc_siglongjmp_chk
-
-# include <longjmp.c>
-
-versioned_symbol (libc, __v2__libc_siglongjmp_chk, __longjmp_chk, GLIBC_2_19);
+# include <debug/longjmp_chk.c>
 
 #endif
diff --git a/sysdeps/unix/sysv/linux/s390/pt-longjmp.c b/sysdeps/unix/sysv/linux/s390/pt-longjmp.c
index 801432cccb..2e489ae19d 100644
--- a/sysdeps/unix/sysv/linux/s390/pt-longjmp.c
+++ b/sysdeps/unix/sysv/linux/s390/pt-longjmp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2013 Free Software Foundation, Inc.
+/* Copyright (C) 2014 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
@@ -15,49 +15,30 @@
    License along with the GNU C Library; if not, see
    <http://www.gnu.org/licenses/>.
 
-   This is a copy of pthread/pt-longjmp.c made for extending the
-   jmpbuf structure on System z.  */
+   Versioned copy of nptl/pt-longjmp.c modified for versioning
+   the reverted jmpbuf extension.  */
 
-#include <setjmp.h>
-#include <stdlib.h>
-#include <bits/wordsize.h>
-#include "pthreadP.h"
 #include  <shlib-compat.h>
-#if defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_19)
-
-/* The __v1 version prototypes are declared in v1-setjmp.h which
-   cannot be included together with setjmp.h.  So we put the
-   prototypes here manually.  */
-extern void __v1__libc_siglongjmp (sigjmp_buf env, int val)
-     __attribute__ ((noreturn));
-extern void __v1__libc_longjmp (sigjmp_buf env, int val)
-     __attribute__ ((noreturn));
-
-void __v1_siglongjmp (sigjmp_buf env, int val)
-{
-  __v1__libc_siglongjmp (env, val);
-}
-
-void __v1_longjmp (jmp_buf env, int val)
-{
-  __v1__libc_longjmp (env, val);
-}
-
-compat_symbol (libpthread, __v1_longjmp, longjmp, GLIBC_2_0);
-compat_symbol (libpthread, __v1_siglongjmp, siglongjmp, GLIBC_2_0);
-#endif /* defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_19))  */
-
-void
-__v2_longjmp (jmp_buf env, int val)
-{
-  __libc_longjmp (env, val);
-}
-
-void
-__v2_siglongjmp (jmp_buf env, int val)
-{
-  __libc_siglongjmp (env, val);
-}
-
-versioned_symbol (libpthread, __v2_longjmp, longjmp, GLIBC_2_19);
-versioned_symbol (libpthread, __v2_siglongjmp, siglongjmp, GLIBC_2_19);
+
+#if defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20)
+	/* we need a unique name in case of symbol versioning.  */
+# define longjmp __v1longjmp
+#endif /* defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20))  */
+
+#include <nptl/pt-longjmp.c>
+
+#if defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20)
+/* In glibc release 2.19 new versions of longjmp-functions were introduced,
+   but were reverted before 2.20. Thus both versions are the same function.  */
+
+# undef longjmp
+
+strong_alias (__v1longjmp, __v2longjmp)
+versioned_symbol (libpthread, __v1longjmp, longjmp, GLIBC_2_0);
+compat_symbol (libpthread, __v2longjmp, longjmp, GLIBC_2_19);
+
+weak_alias (siglongjmp, __v1siglongjmp)
+weak_alias (siglongjmp, __v2siglongjmp)
+versioned_symbol (libpthread, __v1siglongjmp, siglongjmp, GLIBC_2_0);
+compat_symbol (libpthread, __v2siglongjmp, siglongjmp, GLIBC_2_19);
+#endif /* defined SHARED && SHLIB_COMPAT (libpthread, GLIBC_2_19, GLIBC_2_20))  */
diff --git a/sysdeps/unix/sysv/linux/s390/rtld-getcontext.S b/sysdeps/unix/sysv/linux/s390/rtld-getcontext.S
deleted file mode 100644
index 653f2b656f..0000000000
--- a/sysdeps/unix/sysv/linux/s390/rtld-getcontext.S
+++ /dev/null
@@ -1,19 +0,0 @@
-/* Copyright (C) 2013 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/>.  */
-
-/* Build a non-versioned object for rtld-*.  */
-#include "getcontext-common.S"
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
index a1b7a6a1ae..e74f335768 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/____longjmp_chk.c
@@ -26,8 +26,8 @@
 #include <stdint.h>
 #include <signal.h>
 #include <sys/syscall.h>
-#include <libc-symbols.h>
-#include <shlib-compat.h>
+
+#define __longjmp ____longjmp_chk
 
 #define CHECK_SP(env, guard) \
   do									\
@@ -51,22 +51,4 @@
 	}								\
     } while (0)
 
-
-#if defined NOT_IN_libc
-/* Build a non-versioned object for rtld-*.  */
-# define __longjmp ____longjmp_chk
-# include "__longjmp-common.c"
-
-#else /* !NOT_IN_libc */
-# define __longjmp  ____v2__longjmp_chk
-# include "__longjmp-common.c"
-
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_11, GLIBC_2_19)
-#  undef __longjmp
-#  define __V1_JMPBUF
-#  define __longjmp  ____v1__longjmp_chk
-#  include "__longjmp-common.c"
-#  undef __longjmp
-
-# endif
-#endif /* !NOT_IN_libc */
+#include "__longjmp.c"
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext-common.S b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
index 4992030239..f35bc5c39a 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/getcontext-common.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S
@@ -19,9 +19,10 @@
 #include <sysdep.h>
 #include <features.h>
 
-#include "rtld-global-offsets.h"
 #include "ucontext_i.h"
 
+#include <shlib-compat.h>
+
 /*  __getcontext (const ucontext_t *ucp)
 
   Saves the machine context in UCP such that when it is activated,
@@ -37,7 +38,7 @@ ENTRY(__getcontext)
 	/* rt_sigprocmask (SIG_BLOCK, NULL, &sc->sc_mask, sigsetsize).  */
 	la      %r2,SIG_BLOCK
 	slr	%r3,%r3
-	la      %r4,SC_MASK(%r1)
+	la	%r4,SC_MASK(%r1)
 	lhi	%r5,_NSIG8
 	svc	SYS_ify(rt_sigprocmask)
 
@@ -60,42 +61,6 @@ ENTRY(__getcontext)
 	std     %f14,SC_FPRS+112(%r1)
 	std     %f15,SC_FPRS+120(%r1)
 
-	lhi	%r2,0
-#ifndef __V1_UCONTEXT
-	bras	%r3,0f
-# ifdef IS_IN_rtld
-  /* Within ld.so we can do slightly better by addressing dl_hwap
-     relative to GOT start.  */
-1:	.long	_GLOBAL_OFFSET_TABLE_ - 1b
-	.long	C_SYMBOL_NAME(_rtld_global_ro)@GOTOFF
-0:	l	%r4,0(%r3)
-	la	%r4,0(%r3,%r4)
-	l	%r5,4(%r3)
-	/* _dl_hwcap is 64 bit and we need the lower 32.  */
-	l	%r3,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+4(%r4,%r5)
-# elif PIC
-1:	.long	_GLOBAL_OFFSET_TABLE_ - 1b
-	.long	C_SYMBOL_NAME(_rtld_global_ro)@GOT
-0:	l	%r4,0(%r3)
-	la	%r4,0(%r3,%r4)  /* GOT pointer -> r4 */
-	l	%r5,4(%r3)      /* GOT offset -> r5 */
-	l	%r5,0(%r4,%r5)  /* GOT slot -> r5 */
-	l	%r3,RTLD_GLOBAL_RO_DL_HWCAP_OFFSET+4(%r5)
-# else
-	.long	C_SYMBOL_NAME(_dl_hwcap)
-0:	l	%r3,0(%r3)
-	l	%r3,0(%r3)
-# endif
-	tml	%r3,512 /* HWCAP_S390_HIGH_GPRS */
-	jz	2f
-	/* highgprs implies zarch so stmh/oill is ok here.  */
-	.machine "z900"
-	.machinemode "zarch_nohighgprs"
-	stmh	%r0,%r15,SC_HIGHGPRS(%r1)
-	oill	%r2,1 /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-#endif
-2:	st	%r2,SC_FLGS(%r1)
-
 	/* Set __getcontext return value to 0.  */
 	slr     %r2,%r2
 
@@ -110,3 +75,12 @@ ENTRY(__getcontext)
 END(__getcontext)
 
 weak_alias (__getcontext, getcontext)
+
+#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+/* In glibc release 2.19 a new version of getcontext was introduced,
+   but was reverted before 2.20. Thus both versions are the same function.  */
+weak_alias (__getcontext, __v1__getcontext)
+weak_alias (__getcontext, __v2__getcontext)
+versioned_symbol (libc, __v1__getcontext, getcontext, GLIBC_2_1)
+compat_symbol (libc, __v2__getcontext, getcontext, GLIBC_2_19)
+#endif
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index 03f2e83805..0194f0b086 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -1777,7 +1777,6 @@ GLIBC_2.18
 GLIBC_2.19
  GLIBC_2.19 A
  __longjmp_chk F
- __setjmp F
  __sigsetjmp F
  _longjmp F
  _setjmp F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
index fbe8b77caf..42839e26f1 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
@@ -62,16 +62,8 @@ ENTRY(__setcontext)
 	/* Don't touch %a0, used for thread purposes.  */
 	lam	%a1,%a15,SC_ACRS+4(%r1)
 
-	/* Restore the upper halfs if available.  */
-	l	%r2,SC_FLGS(%r1)
-	tml	%r2,1   /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-	jz	0f
-	.machine	"z900"
-	.machinemode	"zarch_nohighgprs"
-	lmh	%r0,%r15,SC_HIGHGPRS(%r1)
-
 	/* Load general purpose registers.  */
-0:	lm	%r0,%r15,SC_GPRS(%r1)
+	lm	%r0,%r15,SC_GPRS(%r1)
 
 	/* Return.  */
 	br	%r14
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
index 41ede4b7b2..9206aa334d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/swapcontext.S
@@ -65,31 +65,19 @@ ENTRY(__swapcontext)
 	std     %f14,SC_FPRS+112(%r1)
 	std     %f15,SC_FPRS+120(%r1)
 
-	/* Store access registers.  */
-	stam    %a0,%a15,SC_ACRS(%r1)
-
 	/* Set __swapcontext return value to 0.  */
 	slr     %r2,%r2
 
+	/* Store access registers.  */
+	stam    %a0,%a15,SC_ACRS(%r1)
+
 	/* Store general purpose registers.  */
 	stm     %r0,%r15,SC_GPRS(%r1)
 
-	/* Copy uc_flags into the new ucontext_t.  */
+	/* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL).  */
+	la      %r2,SIG_BLOCK
 	lr	%r5,%r0
-	l	%r2,SC_FLGS(%r5)
-	st	%r2,SC_FLGS(%r1)
-
-	/* Save/restore the upper halfs if necessary.  */
-	tml	%r2,1   /* UCONTEXT_UC_FLAGS_HIGH_GPRS */
-	jz	0f
-	.machine	"z900"
-	.machinemode	"zarch_nohighgprs"
-	stmh	%r0,%r15,SC_HIGHGPRS(%r1)
-	lmh	%r0,%r15,SC_HIGHGPRS(%r5)
-
-	/* rt_sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL, sigsetsize).  */
-0:	la      %r2,SIG_BLOCK
-	la      %r3,SC_MASK(%r5)
+	la	%r3,SC_MASK(%r5)
 	slr	%r4,%r4
 	lhi	%r5,_NSIG8
 	svc	SYS_ify(rt_sigprocmask)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym b/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym
deleted file mode 100644
index 705c7ab6cf..0000000000
--- a/sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.sym
+++ /dev/null
@@ -1,26 +0,0 @@
-#include <stddef.h>
-#include <signal.h>
-#include <sys/ucontext.h>
-
---
-
-SIG_BLOCK
-SIG_UNBLOCK
-SIG_SETMASK
-
-_NSIG8          (_NSIG / 8)
-
-#define ucontext(member)	offsetof (ucontext_t, member)
-#define mcontext(member)	ucontext (uc_mcontext.member)
-
-SC_FLGS		ucontext (uc_flags)
-SC_LINK		ucontext (uc_link)
-SC_STCK		ucontext (uc_stack.ss_sp)
-SC_STSZ		ucontext (uc_stack.ss_size)
-SC_PSW		mcontext (psw)
-SC_GPRS		mcontext (gregs)
-SC_ACRS		mcontext (aregs)
-SC_FPC		mcontext (fpregs.fpc)
-SC_FPRS		mcontext (fpregs.fprs)
-SC_MASK		ucontext (uc_sigmask)
-SC_HIGHGPRS	ucontext (uc_high_gprs)
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
index bc27b08728..a3b1375a0d 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/____longjmp_chk.c
@@ -26,8 +26,8 @@
 #include <stdint.h>
 #include <signal.h>
 #include <sys/syscall.h>
-#include <libc-symbols.h>
-#include <shlib-compat.h>
+
+#define __longjmp ____longjmp_chk
 
 #define CHECK_SP(env, guard) \
   do									\
@@ -51,23 +51,4 @@
 	}								\
     } while (0)
 
-
-#if defined NOT_IN_libc
-/* Build a non-versioned object for rtld-*.  */
-# define __longjmp ____longjmp_chk
-# include "__longjmp-common.c"
-
-#else /* !NOT_IN_libc */
-# define __longjmp  ____v2__longjmp_chk
-# include "__longjmp-common.c"
-# undef __longjmp
-
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_11, GLIBC_2_19)
-#  undef __longjmp
-#  define __V1_JMPBUF
-#  define __longjmp  ____v1__longjmp_chk
-#  include "__longjmp-common.c"
-#  undef __longjmp
-
-# endif
-#endif /* !NOT_IN_libc */
+#include "__longjmp.c"
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext-common.S b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S
index 3e61e30702..26a1c514c4 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/getcontext-common.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S
@@ -21,6 +21,8 @@
 
 #include "ucontext_i.h"
 
+#include <shlib-compat.h>
+
 /*  __getcontext (const ucontext_t *ucp)
 
   Saves the machine context in UCP such that when it is activated,
@@ -62,10 +64,6 @@ ENTRY(__getcontext)
 	/* Set __getcontext return value to 0.  */
 	slgr    %r2,%r2
 
-	/* Store the version number into the uc_flags field.  So far
-	   we do not make use of the reserved bytes so we store a zero.  */
-	stg	%r2,SC_FLGS(%r1)
-
 	/* Store access registers.  */
 	stam    %a0,%a15,SC_ACRS(%r1)
 
@@ -77,3 +75,12 @@ ENTRY(__getcontext)
 END(__getcontext)
 
 weak_alias (__getcontext, getcontext)
+
+#if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+/* In glibc release 2.19 a new version of getcontext was introduced,
+   but was reverted before 2.20. Thus both versions are the same function.  */
+weak_alias (__getcontext, __v1__getcontext)
+weak_alias (__getcontext, __v2__getcontext)
+versioned_symbol (libc, __v1__getcontext, getcontext, GLIBC_2_1)
+compat_symbol (libc, __v2__getcontext, getcontext, GLIBC_2_19)
+#endif
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index 4576fc8d14..807f702981 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -98,7 +98,6 @@ GLIBC_2.18
 GLIBC_2.19
  GLIBC_2.19 A
  __longjmp_chk F
- __setjmp F
  __sigsetjmp F
  _longjmp F
  _setjmp F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
index ac74b6bc08..e3e624c91b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/swapcontext.S
@@ -65,25 +65,21 @@ ENTRY(__swapcontext)
 	std     %f14,SC_FPRS+112(%r1)
 	std     %f15,SC_FPRS+120(%r1)
 
+	/* Set __swapcontext return value to 0.  */
+	slgr     %r2,%r2
+
 	/* Store access registers.  */
 	stam    %a0,%a15,SC_ACRS(%r1)
 
-	/* Set __swapcontext return value to 0.  */
-	slgr	%r2,%r2
-
 	/* Store general purpose registers.  */
 	stmg    %r0,%r15,SC_GPRS(%r1)
 
-	/* Copy uc_flags into the new ucontext_t.  */
-	lgr	%r5,%r0
-	lg	%r2,SC_FLGS(%r5)
-	stg	%r2,SC_FLGS(%r1)
-
 	/* rt_sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL, sigsetsize).  */
 	la      %r2,SIG_BLOCK
+	lgr	%r5,%r0
 	la	%r3,SC_MASK(%r5)
-	slgr	%r4,%r4
 	lghi	%r5,_NSIG8
+	slgr	%r4,%r4
 	svc	SYS_ify(rt_sigprocmask)
 
 	/* Load fpu context.  */
diff --git a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
index f04bf849d5..d528cb189d 100644
--- a/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/s390/sys/ucontext.h
@@ -64,15 +64,6 @@ typedef struct
     fpreg_t fprs[16];
   } fpregset_t;
 
-/* Bit is set if the uc_high_gprs field contains the upper halfs of
-   the 64 bit general purpose registers.  Since the uc_high_gprs field
-   is only available in the 32 bit version of ucontext_t it will never
-   be set for 64 bit.  */
-#define UCONTEXT_UC_FLAGS_HIGH_GPRS (1UL << 0)
-
-/* A new uc_flags constant will be defined when actually making use of
-   the reserved space: UCONTEXT_UCFLAGS_RESERVED (1UL << 1).  */
-
 /* Context to describe whole processor state.  */
 typedef struct
   {
@@ -90,10 +81,6 @@ struct ucontext
     stack_t uc_stack;
     mcontext_t uc_mcontext;
     __sigset_t uc_sigmask;
-#ifndef __s390x__
-    unsigned long uc_high_gprs[16];
-#endif
-    char __reserved[512];
   };
 
 
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.sym b/sysdeps/unix/sysv/linux/s390/ucontext_i.sym
index 6cc9f19624..6cc9f19624 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.sym
+++ b/sysdeps/unix/sysv/linux/s390/ucontext_i.sym
diff --git a/sysdeps/unix/sysv/linux/s390/v1-longjmp_chk.c b/sysdeps/unix/sysv/linux/s390/v1-longjmp_chk.c
deleted file mode 100644
index bd80acfe66..0000000000
--- a/sysdeps/unix/sysv/linux/s390/v1-longjmp_chk.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Copyright (C) 2013 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/>.
-
-   This went into a separate source file since we would otherwise be
-   needed to include two different versions of setjmp.h into the same
-   file.  */
-
-#include <shlib-compat.h>
-
-#if !defined NOT_IN_libc && defined SHARED
-# if SHLIB_COMPAT (libc, GLIBC_2_11, GLIBC_2_19)
-
-#  define __v1__longjmp ____v1__longjmp_chk
-#  define __v1__libc_siglongjmp __v1__libc_siglongjmp_chk
-
-#  include <v1-longjmp.c>
-
-compat_symbol (libc, __v1__libc_siglongjmp_chk, __longjmp_chk, GLIBC_2_11);
-
-# endif
-#endif