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diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
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index 0000000000..1fc038c27f
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+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h
@@ -0,0 +1,299 @@
+/* Copyright (C) 2000-2015 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/>. */
+
+#ifndef _LINUX_MIPS_SYSDEP_H
+#define _LINUX_MIPS_SYSDEP_H 1
+
+/* There is some commonality. */
+#include <sysdeps/unix/mips/mips64/n64/sysdep.h>
+
+#include <tls.h>
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL. */
+#ifndef __ASSEMBLER__
+#include <errno.h>
+#endif
+
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#ifdef __ASSEMBLER__
+
+/* We don't want the label for the error handler to be visible in the symbol
+ table when we define it here. */
+# define SYSCALL_ERROR_LABEL 99b
+
+#else /* ! __ASSEMBLER__ */
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) \
+ ({ INTERNAL_SYSCALL_DECL (_sc_err); \
+ long result_var = INTERNAL_SYSCALL (name, _sc_err, nr, args); \
+ if ( INTERNAL_SYSCALL_ERROR_P (result_var, _sc_err) ) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (result_var, _sc_err)); \
+ result_var = -1L; \
+ } \
+ result_var; })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) long err __attribute__ ((unused))
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (long) (err))
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val)
+
+/* Note that the original Linux syscall restart convention required the
+ instruction immediately preceding SYSCALL to initialize $v0 with the
+ syscall number. Then if a restart triggered, $v0 would have been
+ clobbered by the syscall interrupted, and needed to be reinititalized.
+ The kernel would decrement the PC by 4 before switching back to the
+ user mode so that $v0 had been reloaded before SYSCALL was executed
+ again. This implied the place $v0 was loaded from must have been
+ preserved across a syscall, e.g. an immediate, static register, stack
+ slot, etc.
+
+ The convention was relaxed in Linux with a change applied to the kernel
+ GIT repository as commit 96187fb0bc30cd7919759d371d810e928048249d, that
+ first appeared in the 2.6.36 release. Since then the kernel has had
+ code that reloads $v0 upon syscall restart and resumes right at the
+ SYSCALL instruction, so no special arrangement is needed anymore.
+
+ For backwards compatibility with existing kernel binaries we support
+ the old convention by choosing the instruction preceding SYSCALL
+ carefully. This also means we have to force a 32-bit encoding of the
+ microMIPS MOVE instruction if one is used. */
+
+#ifdef __mips_micromips
+# define MOVE32 "move32"
+#else
+# define MOVE32 "move"
+#endif
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ internal_syscall##nr ("li\t%0, %2\t\t\t# " #name "\n\t", \
+ "IK" (SYS_ify (name)), \
+ 0, err, args)
+
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ internal_syscall##nr (MOVE32 "\t%0, %2\n\t", \
+ "r" (__s0), \
+ number, err, args)
+
+#define internal_syscall0(v0_init, input, number, err, dummy...) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a3 asm ("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall1(v0_init, input, number, err, arg1) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a3 asm ("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set reorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall2(v0_init, input, number, err, arg1, arg2) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a1 asm ("$5") = (long) (arg2); \
+ register long __a3 asm ("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall3(v0_init, input, number, err, \
+ arg1, arg2, arg3) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a1 asm ("$5") = (long) (arg2); \
+ register long __a2 asm ("$6") = (long) (arg3); \
+ register long __a3 asm ("$7"); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "=r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall4(v0_init, input, number, err, \
+ arg1, arg2, arg3, arg4) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a1 asm ("$5") = (long) (arg2); \
+ register long __a2 asm ("$6") = (long) (arg3); \
+ register long __a3 asm ("$7") = (long) (arg4); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall5(v0_init, input, number, err, \
+ arg1, arg2, arg3, arg4, arg5) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a1 asm ("$5") = (long) (arg2); \
+ register long __a2 asm ("$6") = (long) (arg3); \
+ register long __a3 asm ("$7") = (long) (arg4); \
+ register long __a4 asm ("$8") = (long) (arg5); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a4) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define internal_syscall6(v0_init, input, number, err, \
+ arg1, arg2, arg3, arg4, arg5, arg6) \
+({ \
+ long _sys_result; \
+ \
+ { \
+ register long __s0 asm ("$16") __attribute__ ((unused)) \
+ = (number); \
+ register long __v0 asm ("$2"); \
+ register long __a0 asm ("$4") = (long) (arg1); \
+ register long __a1 asm ("$5") = (long) (arg2); \
+ register long __a2 asm ("$6") = (long) (arg3); \
+ register long __a3 asm ("$7") = (long) (arg4); \
+ register long __a4 asm ("$8") = (long) (arg5); \
+ register long __a5 asm ("$9") = (long) (arg6); \
+ __asm__ volatile ( \
+ ".set\tnoreorder\n\t" \
+ v0_init \
+ "syscall\n\t" \
+ ".set\treorder" \
+ : "=r" (__v0), "+r" (__a3) \
+ : input, "r" (__a0), "r" (__a1), "r" (__a2), "r" (__a4), \
+ "r" (__a5) \
+ : __SYSCALL_CLOBBERS); \
+ err = __a3; \
+ _sys_result = __v0; \
+ } \
+ _sys_result; \
+})
+
+#define __SYSCALL_CLOBBERS "$1", "$3", "$10", "$11", "$12", "$13", \
+ "$14", "$15", "$24", "$25", "hi", "lo", "memory"
+#endif /* __ASSEMBLER__ */
+
+/* Pointer mangling is not yet supported for MIPS. */
+#define PTR_MANGLE(var) (void) (var)
+#define PTR_DEMANGLE(var) (void) (var)
+
+#endif /* linux/mips/sysdep.h */
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