remove PID caching

Follow GNU C Library from c579f48edba88380635ab98cb612030e3ed8691e
and remove the PID caching. These simplifies the architecture specific
assembly code.
The run of the test suite found no regressions, it even solves
some of the test failures for x86/x86_64/sparc.

Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Acked-by: Matthew Fortune <Matthew.Fortune@imgtec.com>
Acked-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>

48 files changed, 118 insertions, 773 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/clone.S
deleted file mode 100644
index eea1cbeed..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/clone.S
+++ /dev/null
@@ -1,2 +0,0 @@
-#define RESET_PID
-#include <sysdeps/unix/sysv/linux/alpha/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/vfork.S
deleted file mode 100644
index 664cac494..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/vfork.S
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Copyright (C) 2004 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 <sysdep.h>
-#include <tcb-offsets.h>
-
-#undef PSEUDO_PREPARE_ARGS
-#define PSEUDO_PREPARE_ARGS						\
-	/* Load the current cached pid value across the vfork.  */	\
-	rduniq;								\
-	ldl	a2, PID_OFFSET(v0);					\
-	mov	v0, a1;							\
-	/* If the cached value is initialized (nonzero), then write	\
-	   back its negation, or INT_MIN, to indicate that the pid	\
-	   value is uninitialized in the the child, and in the window	\
-	   between here and the point at which we restore the value.  */ \
-	ldah	t0, -0x8000;						\
-	negl	a2, t1;							\
-	cmovne	a2, t1, t0;						\
-	stl	t0, PID_OFFSET(v0);
-
-PSEUDO (__vfork, vfork, 0)
-
-	/* If we're back in the parent, restore the saved pid.  */
-	beq	v0, 1f
-	stl	a2, PID_OFFSET(a1)
-1:	ret
-
-PSEUDO_END (__vfork)
-libc_hidden_def (__vfork)
-weak_alias (__vfork, vfork)
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch
index fa5d530d4..64f3a4f7b 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch
@@ -9,6 +9,3 @@ libpthread_linux_arch_SSRC =
 libpthread_linux_arch_CSRC = pthread_once.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
-libc_linux_arch_SSRC-OMIT = waitpid.S
-
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/clone.S
deleted file mode 100644
index 5fd1de3c2..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/clone.S
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
- */
-
-#define RESET_PID
-#include <tls.h>
-#include <tcb-offsets.h>
-#include "../../../../../../../libc/sysdeps/linux/arc/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/vfork.S
deleted file mode 100644
index d29e05a8a..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/vfork.S
+++ /dev/null
@@ -1,11 +0,0 @@
-/*
- * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
- */
-
-#define SAVE_PID
-#define RESTORE_PID
-#include <tls.h>
-#include <tcb-offsets.h>
-#include "../../../../../../../libc/sysdeps/linux/arc/vfork.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch
index 49d0684ee..55afe20af 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch
@@ -9,11 +9,3 @@ libpthread_linux_arch_SSRC =
 libpthread_linux_arch_CSRC = pthread_once.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
-libc_linux_arch_SSRC-OMIT = waitpid.S
-
-# We always compile it in arm mode because of SAVE_PID macro
-# This macro should be alternatively implemented in THUMB
-# assembly.
-ASFLAGS-vfork.S = -marm
-CFLAGS-OMIT-vfork.S = -mthumb
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/clone.S
deleted file mode 100644
index 23227eb24..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/clone.S
+++ /dev/null
@@ -1,3 +0,0 @@
-#define RESET_PID
-#include <tcb-offsets.h>
-#include "../../../../../../../libc/sysdeps/linux/arm/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S
deleted file mode 100644
index b9e8cf846..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/vfork.S
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Copyright (C) 2005 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 <tcb-offsets.h>
-
-/* Save the PID value.  */
-#define SAVE_PID \
-	str	lr, [sp, #-4]!;		/* Save LR.  */			\
-	mov	r0, #0xffff0fff;	/* Point to the high page.  */	\
-	mov	lr, pc;			/* Save our return address.  */	\
-	sub	pc, r0, #31;		/* Jump to the TLS entry.  */	\
-	ldr	lr, [sp], #4;		/* Restore LR.  */		\
-	mov	r2, r0;			/* Save the TLS addr in r2.  */	\
-	ldr	r3, [r2, #PID_OFFSET];	/* Load the saved PID.  */	\
-	rsbs	r0, r3, #0;		/* Negate it.  */		\
-	moveq	r0, #0x80000000;	/* Use 0x80000000 if it was 0.  */ \
-	str	r0, [r2, #PID_OFFSET]	/* Store the temporary PID.  */
-
-/* Restore the old PID value in the parent.  */
-#define RESTORE_PID \
-	cmp	r0, #0;			/* If we are the parent... */	\
-	strne	r3, [r2, #PID_OFFSET]	/* ... restore the saved PID.  */
-
-#include "../../../../../../../libc/sysdeps/linux/arm/vfork.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c
index af4041031..49806dab9 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/fork.c
@@ -135,12 +135,6 @@ fork (void)
   pid_t ppid = THREAD_GETMEM (THREAD_SELF, tid);
 #endif
 
-  /* We need to prevent the getpid() code to update the PID field so
-     that, if a signal arrives in the child very early and the signal
-     handler uses getpid(), the value returned is correct.  */
-  pid_t parentpid = THREAD_GETMEM (THREAD_SELF, pid);
-  THREAD_SETMEM (THREAD_SELF, pid, -parentpid);
-
 #ifdef ARCH_FORK
   pid = ARCH_FORK ();
 #else
@@ -158,9 +152,6 @@ fork (void)
       if (__fork_generation_pointer != NULL)
 	*__fork_generation_pointer += 4;
 
-      /* Adjust the PID field for the new process.  */
-      THREAD_SETMEM (self, pid, THREAD_GETMEM (self, tid));
-
 #if HP_TIMING_AVAIL
       /* The CPU clock of the thread and process have to be set to zero.  */
       hp_timing_t now;
@@ -206,9 +197,6 @@ fork (void)
     {
       assert (THREAD_GETMEM (THREAD_SELF, tid) == ppid);
 
-      /* Restore the PID value.  */
-      THREAD_SETMEM (THREAD_SELF, pid, parentpid);
-
       /* We execute this even if the 'fork' call failed.  */
       __UCLIBC_IO_MUTEX_UNLOCK_CANCEL_UNSAFE(_stdio_openlist_add_lock);
 
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/getpid.c b/libpthread/nptl/sysdeps/unix/sysv/linux/getpid.c
index 24abccc93..03b1031a4 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/getpid.c
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/getpid.c
@@ -25,41 +25,11 @@
 # define __NR_getpid __NR_getxpid
 #endif
 
-#ifndef NOT_IN_libc
-static inline __attribute__((always_inline)) pid_t really_getpid (pid_t oldval);
-
-static inline __attribute__((always_inline)) pid_t
-really_getpid (pid_t oldval)
-{
-  if (__builtin_expect (oldval == 0, 1))
-    {
-      pid_t selftid = THREAD_GETMEM (THREAD_SELF, tid);
-      if (__builtin_expect (selftid != 0, 1))
-	return selftid;
-    }
-
-  INTERNAL_SYSCALL_DECL (err);
-  pid_t result = INTERNAL_SYSCALL (getpid, err, 0);
-
-  /* We do not set the PID field in the TID here since we might be
-     called from a signal handler while the thread executes fork.  */
-  if (oldval == 0)
-    THREAD_SETMEM (THREAD_SELF, tid, result);
-  return result;
-}
-#endif
-
 static pid_t
 __getpid (void)
 {
-#ifdef NOT_IN_libc
   INTERNAL_SYSCALL_DECL (err);
   pid_t result = INTERNAL_SYSCALL (getpid, err, 0);
-#else
-  pid_t result = THREAD_GETMEM (THREAD_SELF, pid);
-  if (__builtin_expect (result <= 0, 0))
-    result = really_getpid (result);
-#endif
   return result;
 }
 weak_alias(__getpid, getpid)
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch
index be07d9c85..ee38a6988 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch
@@ -5,11 +5,9 @@
 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 #
 
-libpthread_linux_arch_SSRC = clone.S pthread_spin_unlock.S pthread_once.S
+libpthread_linux_arch_SSRC = pthread_spin_unlock.S pthread_once.S
 libpthread_linux_arch_CSRC = pthread_spin_init.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
 
 ASFLAGS += -DUSE___THREAD
-
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S
deleted file mode 100644
index 9c7c46467..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/clone.S
+++ /dev/null
@@ -1,2 +0,0 @@
-#define RESET_PID
-#include <libc/sysdeps/linux/i386/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S
deleted file mode 100644
index 074f0f046..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/vfork.S
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Copyright (C) 1999,2002,2004,2006 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 <tcb-offsets.h>
-
-/* Save the PID value.  */
-#define SAVE_PID \
-	movl	%gs:PID, %edx; 						      \
-	movl	%edx, %eax;						      \
-	negl	%eax;							      \
-	jne	1f;							      \
-	movl	$0x80000000, %eax;					      \
-1:	movl	%eax, %gs:PID
-
-/* Restore the old PID value in the parent.  */
-#define RESTORE_PID \
-	testl	%eax, %eax;						      \
-	je	1f;							      \
-	movl	%edx, %gs:PID;						      \
-1:
-
-
-#include <libc/sysdeps/linux/i386/vfork.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch
index 0f4d8d327..4c85f0abc 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch
@@ -9,8 +9,5 @@ libpthread_linux_arch_SSRC =
 libpthread_linux_arch_CSRC = pthread_once.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
-libc_linux_arch_SSRC-OMIT = waitpid.S
 
 CFLAGS += $(SSP_ALL_CFLAGS)
-
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/clone.S
deleted file mode 100644
index f5c5c7c5d..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/clone.S
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Copyright (C) 2013 Imagination Technologies Ltd.
- *
- * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
- */
-
-#define RESET_PID
-#include <tcb-offsets.h>
-#include "../../../../../../../libc/sysdeps/linux/metag/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S
deleted file mode 100644
index 7b369b1b4..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/vfork.S
+++ /dev/null
@@ -1,55 +0,0 @@
-/* Copyright (C) 2005 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; see the file COPYING.LIB.  If
-   not, see <http://www.gnu.org/licenses/>.  */
-
-#include <tcb-offsets.h>
-#include <asm/unistd.h>
-
-#ifdef __PIC__
-#define __VFORK_METAG_LOAD_TP ___metag_load_tp@PLT
-#else
-#define __VFORK_METAG_LOAD_TP ___metag_load_tp
-#endif
-
-/* Save the PID value.  */
-#define SAVE_PID \
-	SETL	[A0StP++], D0FrT, D1RtP; \
-	CALLR	D1RtP, __VFORK_METAG_LOAD_TP; \
-	SUB	D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \
-	GETD	D0FrT, [D0Re0 + #PID]; \
-	NEGS	D0FrT, D0FrT; \
-	BNZ	1f; \
-	MOVT	D0FrT, #0x8000; \
-1:	SETD	[D0Re0 + #PID], D0FrT; \
-	GETL	D0FrT, D1RtP, [--A0StP];
-
-#define RESTORE_PID \
-	CMP 	D0Re0, #0; \
-	BEQ	1f; \
-	MSETL	[A0StP++], D0Re0, D0FrT; \
-	CALLR	D1RtP, __VFORK_METAG_LOAD_TP; \
-	SUB	D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \
-	GETD	D0FrT, [D0Re0 + #PID]; \
-	NEG	D0FrT, D0FrT; \
-	MOVT	D1Re0, #0x8000; \
-	CMP 	D0FrT, D1Re0; \
-	XOREQ	D0FrT, D0FrT, D0FrT; \
-	SETD	[D0Re0 + #PID], D0FrT; \
-	GETL	D0FrT, D1RtP, [--A0StP]; \
-	GETL	D0Re0, D1Re0, [--A0StP]; \
-1:
-
-#include <../../../../../../../libc/sysdeps/linux/metag/vfork.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
index 77707a085..44a005306 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/Makefile.arch
@@ -5,4 +5,3 @@ libpthread_linux_arch_SSRC =
 libpthread_linux_arch_CSRC = pthread_once.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S
deleted file mode 100644
index faa78d936..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/clone.S
+++ /dev/null
@@ -1,4 +0,0 @@
-#define RESET_PID
-#include <tls.h>
-#include <tcb-offsets.h>
-#include "../../../../../../../libc/sysdeps/linux/microblaze/clone.S"
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S
deleted file mode 100644
index 433671717..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/microblaze/vfork.S
+++ /dev/null
@@ -1,5 +0,0 @@
-#define SAVE_PID
-#define RESTORE_PID
-#include <tls.h>
-#include <tcb-offsets.h>
-#include <libc/sysdeps/linux/microblaze/vfork.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch
index 565efd4a3..402c5ffaf 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch
@@ -5,13 +5,8 @@
 # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
 #
 
-libpthread_linux_arch_SSRC = clone.S
 libpthread_linux_arch_CSRC = pthread_once.c
 
 libc_linux_arch_CSRC = fork.c
-libc_linux_arch_SSRC = clone.S vfork.S
-ifneq ($(CONFIG_MIPS_O32_ABI),y)
-libc_linux_arch_SSRC-OMIT = waitpid.S
-endif
-ASFLAGS += -DUSE___THREAD
 
+ASFLAGS += -DUSE___THREAD
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/clone.S
deleted file mode 100644
index 858877f07..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/clone.S
+++ /dev/null
@@ -1,2 +0,0 @@
-#define RESET_PID
-#include <libc/sysdeps/linux/mips/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-clone.S
deleted file mode 100644
index add405523..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-clone.S
+++ /dev/null
@@ -1,2 +0,0 @@
-#define RESET_PID
-#include <../../../../../../../libc/sysdeps/linux/mips/clone.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/vfork.S
deleted file mode 100644
index a23d99cfa..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/vfork.S
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Copyright (C) 2005, 2006 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 <features.h>
-#include <tls.h>
-
-/* Save the PID value.  */
-#define SAVE_PID \
-	READ_THREAD_POINTER(v1);	/* Get the thread pointer.  */	\
-	lw	a2, PID_OFFSET(v1);	/* Load the saved PID.  */	\
-	subu	a2, $0, a2;		/* Negate it.  */		\
-	bnez	a2, 1f;			/* If it was zero... */		\
-	lui	a2, 0x8000;		/* use 0x80000000 instead.  */	\
-1:	sw	a2, PID_OFFSET(v1);	/* Store the temporary PID.  */
-
-/* Restore the old PID value in the parent.  */
-#define RESTORE_PID \
-	beqz	v0, 1f;			/* If we are the parent... */	\
-	READ_THREAD_POINTER(v1);	/* Get the thread pointer.  */	\
-	lw	a2, PID_OFFSET(v1);	/* Load the saved PID.  */	\
-	subu	a2, $0, a2;		/* Re-negate it.  */		\
-	lui	a0, 0x8000;		/* Load 0x80000000... */	\
-	bne	a2, a0, 2f;		/* ... compare against it... */	\
-	li	a2, 0;			/* ... use 0 instead.  */	\
-2:	sw	a2, PID_OFFSET(v1);	/* Restore the PID.  */		\
-1:
-
-#include <../../../../../../../libc/sysdeps/linux/mips/vfork.S>
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/Makefile.arch
index 3b8935ce5..94aa25ffb 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/nds32/Makefile.arch
+++