add mips n32 port (ILP32 ABI for mips64)

based on patch submitted by Jaydeep Patil, with minor changes.

46 files changed, 2375 insertions, 0 deletions

diff --git a/arch/mipsn32/atomic_arch.h b/arch/mipsn32/atomic_arch.h
new file mode 100644
index 00000000..ccc3878c
--- /dev/null
+++ b/arch/mipsn32/atomic_arch.h
@@ -0,0 +1,52 @@
+#if __mips_isa_rev < 6
+#define LLSC_M "m"
+#else
+#define LLSC_M "ZC"
+#endif
+
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+	int v;
+#if __mips < 2
+	__asm__ __volatile__ (
+		".set push ; .set mips2\n\t"
+		"ll %0, %1"
+		"\n\t.set pop"
+		: "=r"(v) : "m"(*p));
+#else
+	__asm__ __volatile__ (
+		"ll %0, %1"
+		: "=r"(v) : LLSC_M(*p));
+#endif
+	return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+	int r;
+#if __mips < 2
+	__asm__ __volatile__ (
+		".set push ; .set mips2\n\t"
+		"sc %0, %1"
+		"\n\t.set pop"
+		: "=r"(r), "=m"(*p) : "0"(v) : "memory");
+#else
+	__asm__ __volatile__ (
+		"sc %0, %1"
+		: "=r"(r), "="LLSC_M(*p) : "0"(v) : "memory");
+#endif
+	return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+	__asm__ __volatile__ ("sync" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
+
+#undef LLSC_M
diff --git a/arch/mipsn32/bits/alltypes.h.in b/arch/mipsn32/bits/alltypes.h.in
new file mode 100644
index 00000000..66ca18ad
--- /dev/null
+++ b/arch/mipsn32/bits/alltypes.h.in
@@ -0,0 +1,26 @@
+#define _Addr int
+#define _Int64 long long
+#define _Reg int
+
+TYPEDEF __builtin_va_list va_list;
+TYPEDEF __builtin_va_list __isoc_va_list;
+
+#ifndef __cplusplus
+TYPEDEF int wchar_t;
+#endif
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF long time_t;
+TYPEDEF long suseconds_t;
+
+TYPEDEF struct { union { int __i[9]; volatile int __vi[9]; unsigned __s[9]; } __u; } pthread_attr_t;
+TYPEDEF struct { union { int __i[6]; volatile int __vi[6]; volatile void *volatile __p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[6]; volatile int __vi[6]; volatile void *volatile __p[6]; } __u; } mtx_t;
+TYPEDEF struct { union { int __i[12]; volatile int __vi[12]; void *__p[12]; } __u; } pthread_cond_t;
+TYPEDEF struct { union { int __i[12]; volatile int __vi[12]; void *__p[12]; } __u; } cnd_t;
+TYPEDEF struct { union { int __i[8]; volatile int __vi[8]; void *__p[8]; } __u; } pthread_rwlock_t;
+TYPEDEF struct { union { int __i[5]; volatile int __vi[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/mipsn32/bits/endian.h b/arch/mipsn32/bits/endian.h
new file mode 100644
index 00000000..5399dcb5
--- /dev/null
+++ b/arch/mipsn32/bits/endian.h
@@ -0,0 +1,5 @@
+#if _MIPSEL || __MIPSEL || __MIPSEL__
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#else
+#define __BYTE_ORDER __BIG_ENDIAN
+#endif
diff --git a/arch/mipsn32/bits/errno.h b/arch/mipsn32/bits/errno.h
new file mode 100644
index 00000000..1bb91e3d
--- /dev/null
+++ b/arch/mipsn32/bits/errno.h
@@ -0,0 +1,134 @@
+#define EPERM            1
+#define ENOENT           2
+#define ESRCH            3
+#define EINTR            4
+#define EIO              5
+#define ENXIO            6
+#define E2BIG            7
+#define ENOEXEC          8
+#define EBADF            9
+#define ECHILD          10
+#define EAGAIN          11
+#define ENOMEM          12
+#define EACCES          13
+#define EFAULT          14
+#define ENOTBLK         15
+#define EBUSY           16
+#define EEXIST          17
+#define EXDEV           18
+#define ENODEV          19
+#define ENOTDIR         20
+#define EISDIR          21
+#define EINVAL          22
+#define ENFILE          23
+#define EMFILE          24
+#define ENOTTY          25
+#define ETXTBSY         26
+#define EFBIG           27
+#define ENOSPC          28
+#define ESPIPE          29
+#define EROFS           30
+#define EMLINK          31
+#define EPIPE           32
+#define EDOM            33
+#define ERANGE          34
+#define ENOMSG          35
+#define EIDRM           36
+#define ECHRNG          37
+#define EL2NSYNC        38
+#define EL3HLT          39
+#define EL3RST          40
+#define ELNRNG          41
+#define EUNATCH         42
+#define ENOCSI          43
+#define EL2HLT          44
+#define EDEADLK         45
+#define ENOLCK          46
+#define EBADE           50
+#define EBADR           51
+#define EXFULL          52
+#define ENOANO          53
+#define EBADRQC         54
+#define EBADSLT         55
+#define EDEADLOCK       56
+#define EBFONT          59
+#define ENOSTR          60
+#define ENODATA         61
+#define ETIME           62
+#define ENOSR           63
+#define ENONET          64
+#define ENOPKG          65
+#define EREMOTE         66
+#define ENOLINK         67
+#define EADV            68
+#define ESRMNT          69
+#define ECOMM           70
+#define EPROTO          71
+#define EDOTDOT         73
+#define EMULTIHOP       74
+#define EBADMSG         77
+#define ENAMETOOLONG    78
+#define EOVERFLOW       79
+#define ENOTUNIQ        80
+#define EBADFD          81
+#define EREMCHG         82
+#define ELIBACC         83
+#define ELIBBAD         84
+#define ELIBSCN         85
+#define ELIBMAX         86
+#define ELIBEXEC        87
+#define EILSEQ          88
+#define ENOSYS          89
+#define ELOOP           90
+#define ERESTART        91
+#define ESTRPIPE        92
+#define ENOTEMPTY       93
+#define EUSERS          94
+#define ENOTSOCK        95
+#define EDESTADDRREQ    96
+#define EMSGSIZE        97
+#define EPROTOTYPE      98
+#define ENOPROTOOPT     99
+#define EPROTONOSUPPORT 120
+#define ESOCKTNOSUPPORT 121
+#define EOPNOTSUPP      122
+#define ENOTSUP         EOPNOTSUPP
+#define EPFNOSUPPORT    123
+#define EAFNOSUPPORT    124
+#define EADDRINUSE      125
+#define EADDRNOTAVAIL   126
+#define ENETDOWN        127
+#define ENETUNREACH     128
+#define ENETRESET       129
+#define ECONNABORTED    130
+#define ECONNRESET      131
+#define ENOBUFS         132
+#define EISCONN         133
+#define ENOTCONN        134
+#define EUCLEAN         135
+#define ENOTNAM         137
+#define ENAVAIL         138
+#define EISNAM          139
+#define EREMOTEIO       140
+#define ESHUTDOWN       143
+#define ETOOMANYREFS    144
+#define ETIMEDOUT       145
+#define ECONNREFUSED    146
+#define EHOSTDOWN       147
+#define EHOSTUNREACH    148
+#define EWOULDBLOCK     EAGAIN
+#define EALREADY        149
+#define EINPROGRESS     150
+#define ESTALE          151
+#define ECANCELED       158
+#define ENOMEDIUM       159
+#define EMEDIUMTYPE     160
+#define ENOKEY          161
+#define EKEYEXPIRED     162
+#define EKEYREVOKED     163
+#define EKEYREJECTED    164
+#define EOWNERDEAD      165
+#define ENOTRECOVERABLE 166
+#define ERFKILL         167
+#define EHWPOISON       168
+#define EDQUOT          1133
diff --git a/arch/mipsn32/bits/fcntl.h b/arch/mipsn32/bits/fcntl.h
new file mode 100644
index 00000000..9fd8c23e
--- /dev/null
+++ b/arch/mipsn32/bits/fcntl.h
@@ -0,0 +1,40 @@
+#define O_CREAT        0400
+#define O_EXCL        02000
+#define O_NOCTTY      04000
+#define O_TRUNC       01000
+#define O_APPEND       0010
+#define O_NONBLOCK     0200
+#define O_DSYNC        0020
+#define O_SYNC       040020
+#define O_RSYNC      040020
+#define O_DIRECTORY 0200000
+#define O_NOFOLLOW  0400000
+#define O_CLOEXEC  02000000
+
+#define O_ASYNC      010000
+#define O_DIRECT    0100000
+#define O_LARGEFILE  020000
+#define O_NOATIME  01000000
+#define O_PATH    010000000
+#define O_TMPFILE 020200000
+#define O_NDELAY O_NONBLOCK
+
+#define F_DUPFD  0
+#define F_GETFD  1
+#define F_SETFD  2
+#define F_GETFL  3
+#define F_SETFL  4
+
+#define F_SETOWN 24
+#define F_GETOWN 23
+#define F_SETSIG 10
+#define F_GETSIG 11
+
+#define F_GETLK 33
+#define F_SETLK 34
+#define F_SETLKW 35
+
+#define F_SETOWN_EX 15
+#define F_GETOWN_EX 16
+
+#define F_GETOWNER_UIDS 17
diff --git a/arch/mipsn32/bits/fenv.h b/arch/mipsn32/bits/fenv.h
new file mode 100644
index 00000000..589e71c1
--- /dev/null
+++ b/arch/mipsn32/bits/fenv.h
@@ -0,0 +1,25 @@
+#ifdef __mips_soft_float
+#define FE_ALL_EXCEPT 0
+#define FE_TONEAREST  0
+#else
+#define FE_INEXACT    4
+#define FE_UNDERFLOW  8
+#define FE_OVERFLOW   16
+#define FE_DIVBYZERO  32
+#define FE_INVALID    64
+
+#define FE_ALL_EXCEPT 124
+
+#define FE_TONEAREST  0
+#define FE_TOWARDZERO 1
+#define FE_UPWARD     2
+#define FE_DOWNWARD   3
+#endif
+
+typedef unsigned short fexcept_t;
+
+typedef struct {
+	unsigned __cw;
+} fenv_t;
+
+#define FE_DFL_ENV      ((const fenv_t *) -1)
diff --git a/arch/mipsn32/bits/float.h b/arch/mipsn32/bits/float.h
new file mode 100644
index 00000000..719c7908
--- /dev/null
+++ b/arch/mipsn32/bits/float.h
@@ -0,0 +1,16 @@
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
+#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
+#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
+#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
+
+#define LDBL_MANT_DIG 113
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 33
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 36
diff --git a/arch/mipsn32/bits/ioctl.h b/arch/mipsn32/bits/ioctl.h
new file mode 100644
index 00000000..041be560
--- /dev/null
+++ b/arch/mipsn32/bits/ioctl.h
@@ -0,0 +1,210 @@
+#define _IOC(a,b,c,d) ( ((a)<<29) | ((b)<<8) | (c) | ((d)<<16) )
+#define _IOC_NONE  1U
+#define _IOC_READ  2U
+#define _IOC_WRITE 4U
+
+#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+
+#define TCGETA		0x5401
+#define TCSETA		0x5402
+#define TCSETAW		0x5403
+#define TCSETAF		0x5404
+#define TCSBRK		0x5405
+#define TCXONC		0x5406
+#define TCFLSH		0x5407
+#define TCGETS		0x540D
+#define TCSETS		0x540E
+#define TCSETSW		0x540F
+#define TCSETSF		0x5410
+
+#define TIOCEXCL	0x740D
+#define TIOCNXCL	0x740E
+#define TIOCOUTQ	0x7472
+#define TIOCSTI		0x5472
+#define TIOCMGET	0x741D
+#define TIOCMBIS	0x741B
+#define TIOCMBIC	0x741C
+#define TIOCMSET	0x741D
+
+#define TIOCPKT		0x5470
+#define TIOCSWINSZ	_IOW('t', 103, struct winsize)
+#define TIOCGWINSZ	_IOR('t', 104, struct winsize)
+#define TIOCNOTTY	0x5471
+#define TIOCSETD	0x7401
+#define TIOCGETD	0x7400
+
+#define FIOCLEX		0x6601
+#define FIONCLEX	0x6602
+#define FIOASYNC	0x667D
+#define FIONBIO		0x667E
+#define FIOQSIZE	0x667F
+
+#define TIOCGLTC        0x7474
+#define TIOCSLTC        0x7475
+#define TIOCSPGRP	_IOW('t', 118, int)
+#define TIOCGPGRP	_IOR('t', 119, int)
+#define TIOCCONS	_IOW('t', 120, int)
+
+#define FIONREAD	0x467F
+#define TIOCINQ		FIONREAD
+
+#define TIOCGETP        0x7408
+#define TIOCSETP        0x7409
+#define TIOCSETN        0x740A
+
+#define TIOCSBRK	0x5427
+#define TIOCCBRK	0x5428
+#define TIOCGSID	0x7416
+#define TIOCGPTN	_IOR('T', 0x30, unsigned int)
+#define TIOCSPTLCK	_IOW('T', 0x31, int)
+
+#define TIOCSCTTY	0x5480
+#define TIOCGSOFTCAR	0x5481
+#define TIOCSSOFTCAR	0x5482
+#define TIOCLINUX	0x5483
+#define TIOCGSERIAL	0x5484
+#define TIOCSSERIAL	0x5485
+#define TCSBRKP		0x5486
+
+#define TIOCSERCONFIG	0x5488
+#define TIOCSERGWILD	0x5489
+#define TIOCSERSWILD	0x548A
+#define TIOCGLCKTRMIOS	0x548B
+#define TIOCSLCKTRMIOS	0x548C
+#define TIOCSERGSTRUCT	0x548D
+#define TIOCSERGETLSR   0x548E
+#define TIOCSERGETMULTI 0x548F
+#define TIOCSERSETMULTI 0x5490
+#define TIOCMIWAIT	0x5491
+#define TIOCGICOUNT	0x5492
+#define TIOCGHAYESESP   0x5493
+#define TIOCSHAYESESP   0x5494
+
+#define TIOCTTYGSTRUCT	0x5426
+#define TCGETX		0x5432
+#define TCSETX		0x5433
+#define TCSETXF		0x5434
+#define TCSETXW		0x5435
+
+#define TIOCPKT_DATA		 0
+#define TIOCPKT_FLUSHREAD	 1
+#define TIOCPKT_FLUSHWRITE	 2
+#define TIOCPKT_STOP		 4
+#define TIOCPKT_START		 8
+#define TIOCPKT_NOSTOP		16
+#define TIOCPKT_DOSTOP		32
+#define TIOCPKT_IOCTL		64
+
+#define TIOCSER_TEMT    0x01
+
+struct winsize {
+	unsigned short ws_row;
+	unsigned short ws_col;
+	unsigned short ws_xpixel;
+	unsigned short ws_ypixel;
+};
+
+#define TIOCM_LE        0x001
+#define TIOCM_DTR       0x002
+#define TIOCM_RTS       0x004
+#define TIOCM_ST        0x008
+#define TIOCM_SR        0x010
+#define TIOCM_CTS       0x020
+#define TIOCM_CAR       0x040
+#define TIOCM_RNG       0x080
+#define TIOCM_DSR       0x100
+#define TIOCM_CD        TIOCM_CAR
+#define TIOCM_RI        TIOCM_RNG
+#define TIOCM_OUT1      0x2000
+#define TIOCM_OUT2      0x4000
+#define TIOCM_LOOP      0x8000
+#define TIOCM_MODEM_BITS TIOCM_OUT2
+
+#define N_TTY           0
+#define N_SLIP          1
+#define N_MOUSE         2
+#define N_PPP           3
+#define N_STRIP         4
+#define N_AX25          5
+#define N_X25           6
+#define N_6PACK         7
+#define N_MASC          8
+#define N_R3964         9
+#define N_PROFIBUS_FDL  10
+#define N_IRDA          11
+#define N_SMSBLOCK      12
+#define N_HDLC          13
+#define N_SYNC_PPP      14
+#define N_HCI           15
+
+#define FIOSETOWN       0x8901
+#define SIOCSPGRP       0x8902
+#define FIOGETOWN       0x8903
+#define SIOCGPGRP       0x8904
+#define SIOCATMARK      0x8905
+#define SIOCGSTAMP      0x8906
+
+#define SIOCADDRT       0x890B
+#define SIOCDELRT       0x890C
+#define SIOCRTMSG       0x890D
+
+#define SIOCGIFNAME     0x8910
+#define SIOCSIFLINK     0x8911
+#define SIOCGIFCONF     0x8912
+#define SIOCGIFFLAGS    0x8913
+#define SIOCSIFFLAGS    0x8914
+#define SIOCGIFADDR     0x8915
+#define SIOCSIFADDR     0x8916
+#define SIOCGIFDSTADDR  0x8917
+#define SIOCSIFDSTADDR  0x8918
+#define SIOCGIFBRDADDR  0x8919
+#define SIOCSIFBRDADDR  0x891a
+#define SIOCGIFNETMASK  0x891b
+#define SIOCSIFNETMASK  0x891c
+#define SIOCGIFMETRIC   0x891d
+#define SIOCSIFMETRIC   0x891e
+#define SIOCGIFMEM      0x891f
+#define SIOCSIFMEM      0x8920
+#define SIOCGIFMTU      0x8921
+#define SIOCSIFMTU      0x8922
+#define SIOCSIFHWADDR   0x8924
+#define SIOCGIFENCAP    0x8925
+#define SIOCSIFENCAP    0x8926
+#define SIOCGIFHWADDR   0x8927
+#define SIOCGIFSLAVE    0x8929
+#define SIOCSIFSLAVE    0x8930
+#define SIOCADDMULTI    0x8931
+#define SIOCDELMULTI    0x8932
+#define SIOCGIFINDEX    0x8933
+#define SIOGIFINDEX     SIOCGIFINDEX
+#define SIOCSIFPFLAGS   0x8934
+#define SIOCGIFPFLAGS   0x8935
+#define SIOCDIFADDR     0x8936
+#define SIOCSIFHWBROADCAST 0x8937
+#define SIOCGIFCOUNT    0x8938
+
+#define SIOCGIFBR       0x8940
+#define SIOCSIFBR       0x8941
+
+#define SIOCGIFTXQLEN   0x8942
+#define SIOCSIFTXQLEN   0x8943
+
+#define SIOCDARP        0x8953
+#define SIOCGARP        0x8954
+#define SIOCSARP        0x8955
+
+#define SIOCDRARP       0x8960
+#define SIOCGRARP       0x8961
+#define SIOCSRARP       0x8962
+
+#define SIOCGIFMAP      0x8970
+#define SIOCSIFMAP      0x8971
+
+#define SIOCADDDLCI     0x8980
+#define SIOCDELDLCI     0x8981
+
+#define SIOCDEVPRIVATE		0x89F0
+#define SIOCPROTOPRIVATE	0x89E0
diff --git a/arch/mipsn32/bits/limits.h b/arch/mipsn32/bits/limits.h
new file mode 100644
index 00000000..fbc6d238
--- /dev/null
+++ b/arch/mipsn32/bits/limits.h
@@ -0,0 +1,7 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define LONG_BIT 32
+#endif
+
+#define LONG_MAX  0x7fffffffL
+#define LLONG_MAX  0x7fffffffffffffffLL
diff --git a/arch/mipsn32/bits/mman.h b/arch/mipsn32/bits/mman.h
new file mode 100644
index 00000000..c68aea88
--- /dev/null
+++ b/arch/mipsn32/bits/mman.h
@@ -0,0 +1,24 @@
+#undef MAP_ANON
+#define MAP_ANON       0x800
+#undef MAP_NORESERVE
+#define MAP_NORESERVE  0x0400
+#undef MAP_GROWSDOWN
+#define MAP_GROWSDOWN  0x1000
+#undef MAP_DENYWRITE
+#define MAP_DENYWRITE  0x2000
+#undef MAP_EXECUTABLE
+#define MAP_EXECUTABLE 0x4000
+#undef MAP_LOCKED
+#define MAP_LOCKED     0x8000
+#undef MAP_POPULATE
+#define MAP_POPULATE   0x10000
+#undef MAP_NONBLOCK
+#define MAP_NONBLOCK   0x20000
+#undef MAP_STACK
+#define MAP_STACK      0x40000
+#undef MAP_HUGETLB
+#define MAP_HUGETLB    0x80000
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#undef MADV_SOFT_OFFLINE
+#endif
diff --git a/arch/mipsn32/bits/msg.h b/arch/mipsn32/bits/msg.h
new file mode 100644
index 00000000..bfe2b3a7
--- /dev/null
+++ b/arch/mipsn32/bits/msg.h
@@ -0,0 +1,25 @@
+struct msqid_ds
+{
+	struct ipc_perm msg_perm;
+#if _MIPSEL || __MIPSEL || __MIPSEL__
+	time_t msg_stime;
+	int __unused1;
+	time_t msg_rtime;
+	int __unused2;
+	time_t msg_ctime;
+	int __unused3;
+#else
+	int __unused1;
+	time_t msg_stime;
+	int __unused2;
+	time_t msg_rtime;
+	int __unused3;
+	time_t msg_ctime;
+#endif
+	unsigned long msg_cbytes;
+	msgqnum_t msg_qnum;
+	msglen_t msg_qbytes;
+	pid_t msg_lspid;
+	pid_t msg_lrpid;
+	unsigned long __unused[2];
+};
diff --git a/arch/mipsn32/bits/poll.h b/arch/mipsn32/bits/poll.h
new file mode 100644
index 00000000..b0b1ed62
--- /dev/null
+++ b/arch/mipsn32/bits/poll.h
@@ -0,0 +1,2 @@
+#define POLLWRNORM POLLOUT
+#define POLLWRBAND 0x100
diff --git a/arch/mipsn32/bits/posix.h b/arch/mipsn32/bits/posix.h
new file mode 100644
index 00000000..30a38714
--- /dev/null
+++ b/arch/mipsn32/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_ILP32_OFFBIG  1
+#define _POSIX_V7_ILP32_OFFBIG  1
diff --git a/arch/mipsn32/bits/reg.h b/arch/mipsn32/bits/reg.h
new file mode 100644
index 00000000..a3f63acc
--- /dev/null
+++ b/arch/mipsn32/bits/reg.h
@@ -0,0 +1,47 @@
+#undef __WORDSIZE
+#define __WORDSIZE 64
+
+#define EF_R0 0
+#define EF_R1 1
+#define EF_R2 2
+#define EF_R3 3
+#define EF_R4 4
+#define EF_R5 5
+#define EF_R6 6
+#define EF_R7 7
+#define EF_R8 8
+#define EF_R9 9
+#define EF_R10 10
+#define EF_R11 11
+#define EF_R12 12
+#define EF_R13 13
+#define EF_R14 14
+#define EF_R15 15
+#define EF_R16 16
+#define EF_R17 17
+#define EF_R18 18
+#define EF_R19 19
+#define EF_R20 20
+#define EF_R21 21
+#define EF_R22 22
+#define EF_R23 23
+#define EF_R24 24
+#define EF_R25 25
+
+#define EF_R26 26
+#define EF_R27 27
+#define EF_R28 28
+#define EF_R29 29
+#define EF_R30 30
+#define EF_R31 31
+
+#define EF_LO 32
+#define EF_HI 33
+
+#define EF_CP0_EPC 34
+#define EF_CP0_BADVADDR 35
+#define EF_CP0_STATUS 36
+#define EF_CP0_CAUSE 37
+#define EF_UNUSED0 38
+
+#define EF_SIZE 304
diff --git a/arch/mipsn32/bits/resource.h b/arch/mipsn32/bits/resource.h
new file mode 100644
index 00000000..414a4054
--- /dev/null
+++ b/arch/mipsn32/bits/resource.h
@@ -0,0 +1,5 @@
+#define RLIMIT_NOFILE  5
+#define RLIMIT_AS      6
+#define RLIMIT_RSS     7
+#define RLIMIT_NPROC   8
+#define RLIMIT_MEMLOCK 9
diff --git a/arch/mipsn32/bits/sem.h b/arch/mipsn32/bits/sem.h
new file mode 100644
index 00000000..e46ced95
--- /dev/null
+++ b/arch/mipsn32/bits/sem.h
@@ -0,0 +1,14 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	time_t sem_ctime;
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+	unsigned short sem_nsems;
+	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+#else
+	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+	unsigned short sem_nsems;
+#endif
+	time_t __unused3;
+	time_t __unused4;
+};
diff --git a/arch/mipsn32/bits/setjmp.h b/arch/mipsn32/bits/setjmp.h
new file mode 100644
index 00000000..4d93267e
--- /dev/null
+++ b/arch/mipsn32/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long long __jmp_buf[23];
diff --git a/arch/mipsn32/bits/shm.h b/arch/mipsn32/bits/shm.h
new file mode 100644
index 00000000..8d193781
--- /dev/null
+++ b/arch/mipsn32/bits/shm.h
@@ -0,0 +1,24 @@
+#define SHMLBA 4096
+
+struct shmid_ds {
+	struct ipc_perm shm_perm;
+	size_t shm_segsz;
+	time_t shm_atime;
+	time_t shm_dtime;
+	time_t shm_ctime;
+	pid_t shm_cpid;
+	pid_t shm_lpid;
+	unsigned long shm_nattch;
+	unsigned long __pad1;
+	unsigned long __pad2;
+};
+
+struct shminfo {
+	unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+};
+
+struct shm_info {
+	int __used_ids;
+	unsigned long shm_tot, shm_rss, shm_swp;
+	unsigned long __swap_attempts, __swap_successes;
+};
diff --git a/arch/mipsn32/bits/signal.h b/arch/mipsn32/bits/signal.h
new file mode 100644
index 00000000..c31ad07e
--- /dev/null
+++ b/arch/mipsn32/bits/signal.h
@@ -0,0 +1,143 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+#endif
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef unsigned long long greg_t, gregset_t[32];
+
+typedef struct {
+	union {
+		double fp_dregs[32];
+		struct {
+			float _fp_fregs;
+			unsigned _fp_pad;
+		} fp_fregs[32];
+	} fp_r;
+} fpregset_t;
+
+struct sigcontext {
+	unsigned long long sc_regs[32];
+	unsigned long long sc_fpregs[32];
+	unsigned long long sc_mdhi;
+	unsigned long long sc_hi1;
+	unsigned long long sc_hi2;
+	unsigned long long sc_hi3;
+	unsigned long long sc_mdlo;
+	unsigned long long sc_lo1;
+	unsigned long long sc_lo2;
+	unsigned long long sc_lo3;
+	unsigned long long sc_pc;
+	unsigned int sc_fpc_csr;
+	unsigned int sc_used_math;
+	unsigned int sc_dsp;
+	unsigned int sc_reserved;
+};
+
+typedef struct {
+	gregset_t gregs;
+	fpregset_t fpregs;
+	greg_t mdhi;
+	greg_t hi1;
+	greg_t hi2;
+	greg_t hi3;
+	greg_t mdlo;
+	greg_t lo1;
+	greg_t lo2;
+	greg_t lo3;
+	greg_t pc;
+	unsigned int fpc_csr;
+	unsigned int used_math;
+	unsigned int dsp;
+	unsigned int reserved;
+} mcontext_t;
+
+#else
+typedef struct {
+	unsigned long long __mc1[32];
+	double __mc2[32];
+	unsigned long long __mc3[9];
+	unsigned __mc4[4];
+} mcontext_t;
+#endif
+
+struct sigaltstack {
+	void *ss_sp;
+	size_t ss_size;
+	int ss_flags;
+};
+
+typedef struct __ucontext {
+	unsigned long uc_flags;
+	struct __ucontext *uc_link;
+	stack_t uc_stack;
+	mcontext_t uc_mcontext;
+	sigset_t uc_sigmask;
+} ucontext_t;
+
+#define SA_NOCLDSTOP  1
+#define SA_NOCLDWAIT  0x10000
+#define SA_SIGINFO    8
+#define SA_ONSTACK    0x08000000
+#define SA_RESTART    0x10000000
+#define SA_NODEFER    0x40000000
+#define SA_RESETHAND  0x80000000
+#define SA_RESTORER   0x04000000
+
+#undef SIG_BLOCK
+#undef SIG_UNBLOCK
+#undef SIG_SETMASK
+#define SIG_BLOCK     1
+#define SIG_UNBLOCK   2
+#define SIG_SETMASK   3
+
+#undef SI_ASYNCIO
+#undef SI_MESGQ
+#undef SI_TIMER
+#define SI_ASYNCIO (-2)
+#define SI_MESGQ (-4)
+#define SI_TIMER (-3)
+
+#define __SI_SWAP_ERRNO_CODE
+
+#endif
+
+#define SIGHUP    1
+#define SIGINT    2
+#define SIGQUIT   3
+#define SIGILL    4
+#define SIGTRAP   5
+#define SIGABRT   6
+#define SIGIOT    SIGABRT
+#define SIGSTKFLT 7
+#define SIGFPE    8
+#define SIGKILL   9
+#define SIGBUS    10
+#define SIGSEGV   11
+#define SIGSYS    12
+#define SIGPIPE   13
+#define SIGALRM   14
+#define SIGTERM   15
+#define SIGUSR1   16
+#define SIGUSR2   17
+#define SIGCHLD   18
+#define SIGPWR    19
+#define SIGWINCH  20
+#define SIGURG    21
+#define SIGIO     22
+#define SIGPOLL   SIGIO
+#define SIGSTOP   23
+#define SIGTSTP   24
+#define SIGCONT   25
+#define SIGTTIN   26
+#define SIGTTOU   27
+#define SIGVTALRM 28
+#define SIGPROF   29
+#define SIGXCPU   30
+#define SIGXFSZ   31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 128
diff --git a/arch/mipsn32/bits/socket.h b/arch/mipsn32/bits/socket.h
new file mode 100644
index 00000000..191ebdb5
--- /dev/null
+++ b/arch/mipsn32/bits/socket.h
@@ -0,0 +1,52 @@
+struct msghdr {
+	void *msg_name;
+	socklen_t msg_namelen;
+	struct iovec *msg_iov;
+	int msg_iovlen;
+	void *msg_control;
+	socklen_t msg_controllen;
+	int msg_flags;
+};
+
+struct cmsghdr {
+	socklen_t cmsg_len;
+	int cmsg_level;
+	int cmsg_type;
+};
+
+#define SOCK_STREAM    2
+#define SOCK_DGRAM     1
+
+#define SOL_SOCKET     65535
+
+#define SO_DEBUG        1
+
+#define SO_REUSEADDR    0x0004
+#define SO_KEEPALIVE    0x0008
+#define SO_DONTROUTE    0x0010
+#define SO_BROADCAST    0x0020
+#define SO_LINGER       0x0080
+#define SO_OOBINLINE    0x0100
+#define SO_REUSEPORT    0x0200
+#define SO_SNDBUF       0x1001
+#define SO_RCVBUF       0x1002
+#define SO_SNDLOWAT     0x1003
+#define SO_RCVLOWAT     0x1004
+#define SO_RCVTIMEO     0x1006
+#define SO_SNDTIMEO     0x1005
+#define SO_ERROR        0x1007
+#define SO_TYPE         0x1008
+#define SO_ACCEPTCONN   0x1009
+#define SO_PROTOCOL     0x1028
+#define SO_DOMAIN       0x1029
+
+#define SO_NO_CHECK     11
+#define SO_PRIORITY     12
+#define SO_BSDCOMPAT    14
+#define SO_PASSCRED     17
+#define SO_PEERCRED     18
+#define SO_SNDBUFFORCE  31
+#define SO_RCVBUFFORCE  33
+
+#define SOCK_NONBLOCK     0200
+#define SOCK_CLOEXEC  02000000
diff --git a/arch/mipsn32/bits/stat.h b/arch/mipsn32/bits/stat.h
new file mode 100644
index 00000000..f4d1df83
--- /dev/null
+++ b/arch/mipsn32/bits/stat.h
@@ -0,0 +1,22 @@
+#include <string.h>
+#include <bits/alltypes.h>
+
+struct stat {
+	dev_t st_dev;
+	long __pad1[2];
+	ino_t st_ino;
+	mode_t st_mode;
+	nlink_t st_nlink;
+	uid_t st_uid;
+	gid_t st_gid;
+	dev_t st_rdev;
+	long __pad2[2];
+	off_t st_size;
+	struct timespec st_atim;
+	struct timespec st_mtim;
+	struct timespec st_ctim;
+	blksize_t st_blksize;
+	long __pad3;
+	blkcnt_t st_blocks;
+	long __pad4[14];
+};
diff --git a/arch/mipsn32/bits/statfs.h b/arch/mipsn32/bits/statfs.h
new file mode 100644
index 00000000..a73bd547
--- /dev/null
+++ b/arch/mipsn32/bits/statfs.h
@@ -0,0 +1,8 @@
+struct statfs {
+	unsigned long f_type, f_bsize, f_frsize;
+	fsblkcnt_t f_blocks, f_bfree;
+	fsfilcnt_t f_files, f_ffree;
+	fsblkcnt_t f_bavail;
+	fsid_t f_fsid;
+	unsigned long f_namelen, f_flags, f_spare[5];
+};
diff --git a/arch/mipsn32/bits/stdint.h b/arch/mipsn32/bits/stdint.h
new file mode 100644
index 00000000..d1b27121
--- /dev/null
+++ b/arch/mipsn32/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN  INT32_MIN
+#define INT_FAST32_MIN  INT32_MIN
+
+#define INT_FAST16_MAX  INT32_MAX
+#define INT_FAST32_MAX  INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN      INT32_MIN
+#define INTPTR_MAX      INT32_MAX
+#define UINTPTR_MAX     UINT32_MAX
+#define PTRDIFF_MIN     INT32_MIN
+#define PTRDIFF_MAX     INT32_MAX
+#define SIZE_MAX        UINT32_MAX
diff --git a/arch/mipsn32/bits/syscall.h b/arch/mipsn32/bits/syscall.h
new file mode 100644
index 00000000..09e4a25c
--- /dev/null
+++ b/arch/mipsn32/bits/syscall.h
@@ -0,0 +1,649 @@
+#define __NR_read			6000
+#define __NR_write			6001
+#define __NR_open			6002
+#define __NR_close			6003
+#define __NR_stat			6004
+#define __NR_fstat			6005
+#define __NR_lstat			6006
+#define __NR_poll			6007
+#define __NR_lseek			6008
+#define __NR_mmap			6009
+#define __NR_mprotect			6010
+#define __NR_munmap			6011
+#define __NR_brk			6012
+#define __NR_rt_sigaction		6013
+#define __NR_rt_sigprocmask		6014
+#define __NR_ioctl			6015
+#define __NR_pread64			6016
+#define __NR_pwrite64			6017
+#define __NR_readv			6018
+#define __NR_writev			6019
+#define __NR_access			6020
+#define __NR_pipe			6021
+#define __NR__newselect			6022
+#define __NR_sched_yield		6023
+#define __NR_mremap			6024
+#define __NR_msync			6025
+#define __NR_mincore			6026
+#define __NR_madvise			6027
+#define __NR_shmget			6028
+#define __NR_shmat			6029
+#define __NR_shmctl			6030
+#define __NR_dup			6031
+#define __NR_dup2			6032
+#define __NR_pause			6033
+#define __NR_nanosleep			6034
+#define __NR_getitimer			6035
+#define __NR_setitimer			6036
+#define __NR_alarm			6037
+#define __NR_getpid			6038
+#define __NR_sendfile			6039
+#define __NR_socket			6040
+#define __NR_connect			6041
+#define __NR_accept			6042
+#define __NR_sendto			6043
+#define __NR_recvfrom			6044
+#define __NR_sendmsg			6045
+#define __NR_recvmsg			6046
+#define __NR_shutdown			6047
+#define __NR_bind			6048
+#define __NR_listen			6049
+#define __NR_getsockname		6050
+#define __NR_getpeername		6051
+#define __NR_socketpair			6052
+#define __NR_setsockopt			6053
+#define __NR_getsockopt			6054
+#define __NR_clone			6055
+#define __NR_fork			6056
+#define __NR_execve			6057
+#define __NR_exit			6058
+#define __NR_wait4			6059
+#define __NR_kill			6060
+#define __NR_uname			6061
+#define __NR_semget			6062
+#define __NR_semop			6063
+#define __NR_semctl			6064
+#define __NR_shmdt			6065
+#define __NR_msgget			6066
+#define __NR_msgsnd			6067
+#define __NR_msgrcv			6068
+#define __NR_msgctl			6069
+#define __NR_fcntl			6070
+#define __NR_flock			6071
+#define __NR_fsync			6072
+#define __NR_fdatasync			6073
+#define __NR_truncate			6074
+#define __NR_ftruncate			6075
+#define __NR_getdents			6076
+#define __NR_getcwd			6077
+#define __NR_chdir			6078
+#define __NR_fchdir			6079
+#define __NR_rename			6080
+#define __NR_mkdir			6081
+#define __NR_rmdir			6082
+#define __NR_creat			6083
+#define __NR_link			6084
+#define __NR_unlink			6085
+#define __NR_symlink			6086
+#define __NR_readlink			6087
+#define __NR_chmod			6088
+#define __NR_fchmod			6089
+#define __NR_chown			6090
+#define __NR_fchown			6091
+#define __NR_lchown			6092
+#define __NR_umask			6093
+#define __NR_gettimeofday		6094
+#define __NR_getrlimit			6095
+#define __NR_getrusage			6096
+#define __NR_sysinfo			6097
+#define __NR_times			6098
+#define __NR_ptrace			6099
+#define __NR_getuid			6100
+#define __NR_syslog			6101
+#define __NR_getgid			6102
+#define __NR_setuid			6103
+#define __NR_setgid			6104
+#define __NR_geteuid			6105
+#define __NR_getegid			6106
+#define __NR_setpgid			6107
+#define __NR_getppid			6108
+#define __NR_getpgrp			6109
+#define __NR_setsid			6110
+#define __NR_setreuid			6111
+#define __NR_setregid			6112
+#define __NR_getgroups			6113
+#define __NR_setgroups			6114
+#define __NR_setresuid			6115
+#define __NR_getresuid			6116
+#define __NR_setresgid			6117
+#define __NR_getresgid			6118
+#define __NR_getpgid			6119
+#define __NR_setfsuid			6120
+#define __NR_setfsgid			6121
+#define __NR_getsid			6122
+#define __NR_capget			6123
+#define __NR_capset			6124
+#define __NR_rt_sigpending		6125
+#define __NR_rt_sigtimedwait		6126
+#define __NR_rt_sigqueueinfo		6127
+#define __NR_rt_sigsuspend		6128
+#define __NR_sigaltstack		6129
+#define __NR_utime			6130
+#define __NR_mknod			6131
+#define __NR_personality		6132
+#define __NR_ustat			6133
+#define __NR_statfs			6134
+#define __NR_fstatfs			6135
+#define __NR_sysfs			6136
+#define __NR_getpriority		6137
+#define __NR_setpriority		6138
+#define __NR_sched_setparam		6139
+#define __NR_sched_getparam		6140
+#define __NR_sched_setscheduler		6141
+#define __NR_sched_getscheduler		6142
+#define __NR_sched_get_priority_max	6143
+#define __NR_sched_get_priority_min	6144
+#define __NR_sched_rr_get_interval	6145
+#define __NR_mlock			6146
+#define __NR_munlock			6147
+#define __NR_mlockall			6148
+#define __NR_munlockall			6149
+#define __NR_vhangup			6150
+#define __NR_pivot_root			6151
+#define __NR__sysctl			6152
+#define __NR_prctl			6153
+#define __NR_adjtimex			6154
+#define __NR_setrlimit			6155
+#define __NR_chroot			6156
+#define __NR_sync			6157
+#define __NR_acct			6158
+#define __NR_settimeofday		6159
+#define __NR_mount			6160
+#define __NR_umount2			6161
+#define __NR_swapon			6162
+#define __NR_swapoff			6163
+#define __NR_reboot			6164
+#define __NR_sethostname		6165
+#define __NR_setdomainname		6166
+#define __NR_create_module		6167
+#define __NR_init_module		6168
+#define __NR_delete_module		6169
+#define __NR_get_kernel_syms		6170
+#define __NR_query_module		6171
+#define __NR_quotactl			6172
+#define __NR_nfsservctl			6173
+#define __NR_getpmsg			6174
+#define __NR_putpmsg			6175
+#define __NR_afs_syscall		6176
+#define __NR_reserved177		6177
+#define __NR_gettid			6178
+#define __NR_readahead			6179
+#define __NR_setxattr			6180
+#define __NR_lsetxattr			6181
+#define __NR_fsetxattr			6182
+#define __NR_getxattr			6183
+#define __NR_lgetxattr			6184
+#define __NR_fgetxattr			6185
+#define __NR_listxattr			6186
+#define __NR_llistxattr			6187
+#define __NR_flistxattr			6188
+#define __NR_removexattr		6189
+#define __NR_lremovexattr		6190
+#define __NR_fremovexattr		6191
+#define __NR_tkill			6192
+#define __NR_reserved193		6193
+#define __NR_futex			6194
+#define __NR_sched_setaffinity		6195
+#define __NR_sched_getaffinity		6196
+#define __NR_cacheflush			6197
+#define __NR_cachectl			6198
+#define __NR_sysmips			6199
+#define __NR_io_setup			6200
+#define __NR_io_destroy			6201
+#define __NR_io_getevents		6202
+#define __NR_io_submit			6203
+#define __NR_io_cancel			6204
+#define __NR_exit_group			6205
+#define __NR_lookup_dcookie		6206
+#define __NR_epoll_create		6207
+#define __NR_epoll_ctl			6208
+#define __NR_epoll_wait			6209
+#define __NR_remap_file_pages		6210
+#define __NR_rt_sigreturn		6211
+#define __NR_fcntl64			6212
+#define __NR_set_tid_address		6213
+#define __NR_restart_syscall		6214
+#define __NR_semtimedop			6215
+#define __NR_fadvise64			6216
+#define __NR_statfs64			6217
+#define __NR_fstatfs64			6218
+#define __NR_sendfile64			6219
+#define __NR_timer_create		6220
+#define __NR_timer_settime		6221
+#define __NR_timer_gettime		6222
+#define __NR_timer_getoverrun		6223
+#define __NR_timer_delete		6224
+#define __NR_clock_settime		6225
+#define __NR_clock_gettime		6226
+#define __NR_clock_getres		6227
+#define __NR_clock_nanosleep		6228
+#define __NR_tgkill			6229
+#define __NR_utimes			6230
+#define __NR_mbind			6231
+#define __NR_get_mempolicy		6232
+#define __NR_set_mempolicy		6233
+#define __NR_mq_open			6234
+#define __NR_mq_unlink			6235
+#define __NR_mq_timedsend		6236
+#define __NR_mq_timedreceive		6237
+#define __NR_mq_notify			6238
+#define __NR_mq_getsetattr		6239
+#define __NR_vserver			6240
+#define __NR_waitid			6241
+#define __NR_add_key			6243
+#define __NR_request_key		6244
+#define __NR_keyctl			6245
+#define __NR_set_thread_area		6246
+#define __NR_inotify_init		6247
+#define __NR_inotify_add_watch		6248
+#define __NR_inotify_rm_watch		6249
+#define __NR_migrate_pages		6250
+#define __NR_openat			6251
+#define __NR_mkdirat			6252
+#define __NR_mknodat			6253
+#define __NR_fchownat			6254
+#define __NR_futimesat			6255
+#define __NR_fstatat			6256
+#define __NR_unlinkat			6257
+#define __NR_renameat			6258
+#define __NR_linkat			6259
+#define __NR_symlinkat			6260
+#define __NR_readlinkat			6261
+#define __NR_fchmodat			6262
+#define __NR_faccessat			6263
+#define __NR_pselect6			6264
+#define __NR_ppoll			6265
+#define __NR_unshare			6266
+#define __NR_splice			6267
+#define __NR_sync_file_range		6268
+#define __NR_tee			6269
+#define __NR_vmsplice			6270
+#define __NR_move_pages			6271
+#define __NR_set_robust_list		6272
+#define __NR_get_robust_list		6273
+#define __NR_kexec_load			6274
+#define __NR_getcpu			6275
+#define __NR_epoll_pwait		6276
+#define __NR_ioprio_set			6277
+#define __NR_ioprio_get			6278
+#define __NR_utimensat			6279
+#define __NR_signalfd			6280
+#define __NR_timerfd			6281
+#define __NR_eventfd			6282
+#define __NR_fallocate			6283
+#define __NR_timerfd_create		6284
+#define __NR_timerfd_gettime		6285
+#define __NR_timerfd_settime		6286
+#define __NR_signalfd4			6287
+#define __NR_eventfd2			6288
+#define __NR_epoll_create1		6289
+#define __NR_dup3			6290
+#define __NR_pipe2			6291
+#define __NR_inotify_init1		6292
+#define __NR_preadv			6293
+#define __NR_pwritev			6294
+#define __NR_rt_tgsigqueueinfo		6295
+#define __NR_perf_event_open		6296
+#define __NR_accept4			6297
+#define __NR_recvmmsg			6298
+#define __NR_getdents64			6299
+#define __NR_fanotify_init		6300
+#define __NR_fanotify_mark		6301
+#define __NR_prlimit64			6302
+#define __NR_name_to_handle_at		6303
+#define __NR_open_by_handle_at		6304
+#define __NR_clock_adjtime		6305
+#define __NR_syncfs			6306
+#define __NR_sendmmsg			6307
+#define __NR_setns			6308
+#define __NR_process_vm_readv		6309
+#define __NR_process_vm_writev		6310
+#define __NR_kcmp			6311
+#define __NR_finit_module		6312
+#define __NR_sched_setattr		6313
+#define __NR_sched_getattr		6314
+#define __NR_renameat2			6315
+#define __NR_seccomp			6316
+#define __NR_getrandom			6317
+#define __NR_memfd_create		6318
+#define __NR_bpf			6319
+#define __NR_execveat			6320
+#define __NR_userfaultfd		6321
+#define __NR_membarrier			6322
+#define __NR_mlock2			6323
+#define __NR_copy_file_range		6324
+
+#define SYS_read			6000
+#define SYS_write			6001
+#define SYS_open			6002
+#define SYS_close			6003
+#define SYS_stat			6004
+#define SYS_fstat			6005
+#define SYS_lstat			6006
+#define SYS_poll			6007
+#define SYS_lseek			6008
+#define SYS_mmap			6009
+#define SYS_mprotect			6010
+#define SYS_munmap			6011
+#define SYS_brk				6012
+#define SYS_rt_sigaction		6013
+#define SYS_rt_sigprocmask		6014
+#define SYS_ioctl			6015
+#define SYS_pread64			6016
+#define SYS_pwrite64			6017
+#define SYS_readv			6018
+#define SYS_writev			6019
+#define SYS_access			6020
+#define SYS_pipe			6021
+#define SYS__newselect			6022
+#define SYS_sched_yield			6023
+#define SYS_mremap			6024
+#define SYS_msync			6025
+#define SYS_mincore			6026
+#define SYS_madvise			6027
+#define SYS_shmget			6028
+#define SYS_shmat			6029
+#define SYS_shmctl			6030
+#define SYS_dup				6031
+#define SYS_dup2			6032
+#define SYS_pause			6033
+#define SYS_nanosleep			6034
+#define SYS_getitimer			6035
+#define SYS_setitimer			6036
+#define SYS_alarm			6037
+#define SYS_getpid			6038
+#define SYS_sendfile			6039
+#define SYS_socket			6040
+#define SYS_connect			6041
+#define SYS_accept			6042
+#define SYS_sendto			6043
+#define SYS_recvfrom			6044
+#define SYS_sendmsg			6045
+#define SYS_recvmsg			6046
+#define SYS_shutdown			6047
+#define SYS_bind			6048
+#define SYS_listen			6049
+#define SYS_getsockname			6050
+#define SYS_getpeername			6051
+#define SYS_socketpair			6052
+#define SYS_setsockopt			6053
+#define SYS_getsockopt			6054
+#define SYS_clone			6055
+#define SYS_fork			6056
+#define SYS_execve			6057
+#define SYS_exit			6058
+#define SYS_wait4			6059
+#define SYS_kill			6060
+#define SYS_uname			6061
+#define SYS_semget			6062
+#define SYS_semop			6063
+#define SYS_semctl			6064
+#define SYS_shmdt			6065
+#define SYS_msgget			6066
+#define SYS_msgsnd			6067
+#define SYS_msgrcv			6068
+#define SYS_msgctl			6069
+#define SYS_fcntl			6070
+#define SYS_flock			6071
+#define SYS_fsync			6072
+#define SYS_fdatasync			6073
+#define SYS_truncate			6074
+#define SYS_ftruncate			6075
+#define SYS_getdents			6076
+#define SYS_getcwd			6077
+#define SYS_chdir			6078
+#define SYS_fchdir			6079
+#define SYS_rename			6080
+#define SYS_mkdir			6081
+#define SYS_rmdir			6082
+#define SYS_creat			6083
+#define SYS_link			6084
+#define SYS_unlink			6085
+#define SYS_symlink			6086
+#define SYS_readlink			6087
+#define SYS_chmod			6088
+#define SYS_fchmod			6089
+#define SYS_chown			6090
+#define SYS_fchown			6091
+#define SYS_lchown			6092
+#define SYS_umask			6093
+#define SYS_gettimeofday		6094
+#define SYS_getrlimit			6095
+#define SYS_getrusage			6096
+#define SYS_sysinfo			6097
+#define SYS_times			6098
+#define SYS_ptrace			6099
+#define SYS_getuid			6100
+#define SYS_syslog			6101
+#define SYS_getgid			6102
+#define SYS_setuid			6103
+#define SYS_setgid			6104
+#define SYS_geteuid			6105
+#define SYS_getegid			6106
+#define SYS_setpgid			6107
+#define SYS_getppid			6108
+#define SYS_getpgrp			6109
+#define SYS_setsid			6110
+#define SYS_setreuid			6111
+#define SYS_setregid			6112
+#define SYS_getgroups			6113
+#define SYS_setgroups			6114
+#define SYS_setresuid			6115
+#define SYS_getresuid			6116
+#define SYS_setresgid			6117
+#define SYS_getresgid			6118
+#define SYS_getpgid			6119
+#define SYS_setfsuid			6120
+#define SYS_setfsgid			6121
+#define SYS_getsid			6122
+#define SYS_capget			6123
+#define SYS_capset			6124
+#define SYS_rt_sigpending		6125
+#define SYS_rt_sigtimedwait		6126
+#define SYS_rt_sigqueueinfo		6127
+#define SYS_rt_sigsuspend		6128
+#define SYS_sigaltstack			6129
+#define SYS_utime			6130
+#define SYS_mknod			6131
+#define SYS_personality			6132
+#define SYS_ustat			6133
+#define SYS_statfs			6134
+#define SYS_fstatfs			6135
+#define SYS_sysfs			6136
+#define SYS_getpriority			6137
+#define SYS_setpriority			6138
+#define SYS_sched_setparam		6139
+#define SYS_sched_getparam		6140
+#define SYS_sched_setscheduler		6141
+#define SYS_sched_getscheduler		6142
+#define SYS_sched_get_priority_max	6143
+#define SYS_sched_get_priority_min	6144
+#define SYS_sched_rr_get_interval	6145
+#define SYS_mlock			6146
+#define SYS_munlock			6147
+#define SYS_mlockall			6148
+#define SYS_munlockall			6149
+#define SYS_vhangup			6150
+#define SYS_pivot_root			6151
+#define SYS__sysctl			6152
+#define SYS_prctl			6153
+#define SYS_adjtimex			6154
+#define SYS_setrlimit			6155
+#define SYS_chroot			6156
+#define SYS_sync			6157
+#define SYS_acct			6158
+#define SYS_settimeofday		6159
+#define SYS_mount			6160
+#define SYS_umount2			6161
+#define SYS_swapon			6162
+#define SYS_swapoff			6163
+#define SYS_reboot			6164
+#define SYS_sethostname			6165
+#define SYS_setdomainname		6166
+#define SYS_create_module		6167
+#define SYS_init_module			6168
+#define SYS_delete_module		6169
+#define SYS_get_kernel_syms		6170
+#define SYS_query_module		6171
+#define SYS_quotactl			6172
+#define SYS_nfsservctl			6173
+#define SYS_getpmsg			6174
+#define SYS_putpmsg			6175
+#define SYS_afs_syscall			6176
+#define SYS_reserved177			6177
+#define SYS_gettid			6178
+#define SYS_readahead			6179
+#define SYS_setxattr			6180
+#define SYS_lsetxattr			6181
+#define SYS_fsetxattr			6182
+#define SYS_getxattr			6183
+#define SYS_lgetxattr			6184
+#define SYS_fgetxattr			6185
+#define SYS_listxattr			6186
+#define SYS_llistxattr			6187
+#define SYS_flistxattr			6188
+#define SYS_removexattr			6189
+#define SYS_lremovexattr		6190
+#define SYS_fremovexattr		6191
+#define SYS_tkill			6192
+#define SYS_reserved193			6193
+#define SYS_futex			6194
+#define SYS_sched_setaffinity		6195
+#define SYS_sched_getaffinity		6196
+#define SYS_cacheflush			6197
+#define SYS_cachectl			6198
+#define SYS_sysmips			6199
+#define SYS_io_setup			6200
+#define SYS_io_destroy			6201
+#define SYS_io_getevents		6202
+#define SYS_io_submit			6203
+#define SYS_io_cancel			6204
+#define SYS_exit_group			6205
+#define SYS_lookup_dcookie		6206
+#define SYS_epoll_create		6207
+#define SYS_epoll_ctl			6208
+#define SYS_epoll_wait			6209
+#define SYS_remap_file_pages		6210
+#define SYS_rt_sigreturn		6211
+#define SYS_fcntl64			6212
+#define SYS_set_tid_address		6213
+#define SYS_restart_syscall		6214
+#define SYS_semtimedop			6215
+#define SYS_fadvise64			6216
+#define SYS_statfs64			6217
+#define SYS_fstatfs64			6218
+#define SYS_sendfile64			6219
+#define SYS_timer_create		6220
+#define SYS_timer_settime		6221
+#define SYS_timer_gettime		6222
+#define SYS_timer_getoverrun		6223
+#define SYS_timer_delete		6224
+#define SYS_clock_settime		6225
+#define SYS_clock_gettime		6226
+#define SYS_clock_getres		6227
+#define SYS_clock_nanosleep		6228
+#define SYS_tgkill			6229
+#define SYS_utimes			6230
+#define SYS_mbind			6231
+#define SYS_get_mempolicy		6232
+#define SYS_set_mempolicy		6233
+#define SYS_mq_open			6234
+#define SYS_mq_unlink			6235
+#define SYS_mq_timedsend		6236
+#define SYS_mq_timedreceive		6237
+#define SYS_mq_notify			6238
+#define SYS_mq_getsetattr		6239
+#define SYS_vserver			6240
+#define SYS_waitid			6241
+#define SYS_add_key			6243
+#define SYS_request_key			6244
+#define SYS_keyctl			6245
+#define SYS_set_thread_area		6246
+#define SYS_inotify_init		6247
+#define SYS_inotify_add_watch		6248
+#define SYS_inotify_rm_watch		6249
+#define SYS_migrate_pages		6250
+#define SYS_openat			6251
+#define SYS_mkdirat			6252
+#define SYS_mknodat			6253
+#define SYS_fchownat			6254
+#define SYS_futimesat			6255
+#define SYS_fstatat			6256
+#define SYS_unlinkat			6257
+#define SYS_renameat			6258
+#define SYS_linkat			6259
+#define SYS_symlinkat			6260
+#define SYS_readlinkat			6261
+#define SYS_fchmodat			6262
+#define SYS_faccessat			6263
+#define SYS_pselect6			6264
+#define SYS_ppoll			6265
+#define SYS_unshare			6266
+#define SYS_splice			6267
+#define SYS_sync_file_range		6268
+#define SYS_tee				6269
+#define SYS_vmsplice			6270
+#define SYS_move_pages			6271
+#define SYS_set_robust_list		6272
+#define SYS_get_robust_list		6273
+#define SYS_kexec_load			6274
+#define SYS_getcpu			6275
+#define SYS_epoll_pwait			6276
+#define SYS_ioprio_set			6277
+#define SYS_ioprio_get			6278
+#define SYS_utimensat			6279
+#define SYS_signalfd			6280
+#define SYS_timerfd			6281
+#define SYS_eventfd			6282
+#define SYS_fallocate			6283
+#define SYS_timerfd_create		6284
+#define SYS_timerfd_gettime		6285
+#define SYS_timerfd_settime		6286
+#define SYS_signalfd4			6287
+#define SYS_eventfd2			6288
+#define SYS_epoll_create1		6289
+#define SYS_dup3			6290
+#define SYS_pipe2			6291
+#define SYS_inotify_init1		6292
+#define SYS_preadv			6293
+#define SYS_pwritev			6294
+#define SYS_rt_tgsigqueueinfo		6295
+#define SYS_perf_event_open		6296
+#define SYS_accept4			6297
+#define SYS_recvmmsg			6298
+#define SYS_getdents64			6299
+#define SYS_fanotify_init		6300
+#define SYS_fanotify_mark		6301
+#define SYS_prlimit64			6302
+#define SYS_name_to_handle_at		6303
+#define SYS_open_by_handle_at		6304
+#define SYS_clock_adjtime		6305
+#define SYS_syncfs			6306
+#define SYS_sendmmsg			6307
+#define SYS_setns			6308
+#define SYS_process_vm_readv		6309
+#define SYS_process_vm_writev		6310
+#define SYS_kcmp			6311
+#define SYS_finit_module		6312
+#define SYS_sched_setattr		6313
+#define SYS_sched_getattr		6314
+#define SYS_renameat2			6315
+#define SYS_seccomp			6316
+#define SYS_getrandom			6317
+#define SYS_memfd_create		6318
+#define SYS_bpf				6319
+#define SYS_execveat			6320
+#define SYS_userfaultfd			6321
+#define SYS_membarrier			6322
+#define SYS_mlock2			6323
+#define SYS_copy_file_range		6324
diff --git a/arch/mipsn32/bits/termios.h b/arch/mipsn32/bits/termios.h
new file mode 100644
index 00000000..3a7d5a13
--- /dev/null
+++ b/arch/mipsn32/bits/termios.h
@@ -0,0 +1,166 @@
+struct termios {
+	tcflag_t c_iflag;
+	tcflag_t c_oflag;
+	tcflag_t c_cflag;
+	tcflag_t c_lflag;
+	cc_t c_line;
+	cc_t c_cc[NCCS];
+};
+
+#define VINTR     0
+#define VQUIT     1
+#define VERASE    2
+#define VKILL     3
+#define VMIN      4
+#define VTIME     5
+#define VEOL2     6
+#define VSWTC     7
+#define VSWTCH    7
+#define VSTART    8
+#define VSTOP     9
+#define VSUSP    10
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE  14
+#define VLNEXT   15
+#define VEOF     16
+#define VEOL     17
+
+#define IGNBRK  0000001
+#define BRKINT  0000002
+#define IGNPAR  0000004
+#define PARMRK  0000010
+#define INPCK   0000020
+#define ISTRIP  0000040
+#define INLCR   0000100
+#define IGNCR   0000200
+#define ICRNL   0000400
+#define IUCLC   0001000
+#define IXON    0002000
+#define IXANY   0004000
+#define IXOFF   0010000
+#define IMAXBEL 0020000
+#define IUTF8   0040000
+
+#define OPOST  0000001
+#define OLCUC  0000002
+#define ONLCR  0000004
+#define OCRNL  0000010
+#define ONOCR  0000020
+#define ONLRET 0000040
+#define OFILL  0000100
+#define OFDEL  0000200
+#define NLDLY  0000400
+#define NL0    0000000
+#define NL1    0000400
+#define CRDLY  0003000
+#define CR0    0000000
+#define CR1    0001000
+#define CR2    0002000
+#define CR3    0003000
+#define TABDLY 0014000
+#define TAB0   0000000
+#define TAB1   0004000
+#define TAB2   0010000
+#define TAB3   0014000
+#define BSDLY  0020000
+#define BS0    0000000
+#define BS1    0020000
+#define FFDLY  0100000
+#define FF0    0000000
+#define FF1    0100000
+
+#define VTDLY  0040000
+#define VT0    0000000
+#define VT1    0040000
+
+#define B0       0000000
+#define B50      0000001
+#define B75      0000002
+#define B110     0000003
+#define B134     0000004
+#define B150     0000005
+#define B200     0000006
+#define B300     0000007
+#define B600     0000010
+#define B1200    0000011
+#define B1800    0000012
+#define B2400    0000013
+#define B4800    0000014
+#define B9600    0000015
+#define B19200   0000016
+#define B38400   0000017
+#define EXTA     0000016
+#define EXTB     0000017
+
+#define BOTHER   0010000
+#define B57600   0010001
+#define B115200  0010002
+#define B230400  0010003
+#define B460800  0010004
+#define B500000  0010005
+#define B576000  0010006
+#define B921600  0010007
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+
+#define CBAUD    0010017
+
+#define CSIZE  0000060
+#define CS5    0000000
+#define CS6    0000020
+#define CS7    0000040
+#define CS8    0000060
+#define CSTOPB 0000100
+#define CREAD  0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL  0002000
+#define CLOCAL 0004000
+
+#define ISIG   0000001
+#define ICANON 0000002
+#define XCASE  0000004
+#define ECHO   0000010
+#define ECHOE  0000020
+#define ECHOK  0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define IEXTEN 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0020000
+#define PENDIN 0040000
+#define TOSTOP 0100000
+#define ITOSTOP 0100000
+
+#define TCOOFF 0
+#define TCOON  1
+#define TCIOFF 2
+#define TCION  3
+
+#define TCIFLUSH  0
+#define TCOFLUSH  1
+#define TCIOFLUSH 2
+
+#define TCSANOW   0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define CBAUDEX 0010000
+#define CIBAUD   002003600000
+#define IBSHIFT 16
+#define CMSPAR   010000000000
+#define CRTSCTS  020000000000
+#define EXTPROC 0200000
+#define XTABS  0014000
+#define TIOCSER_TEMT 1
+#endif
diff --git a/arch/mipsn32/bits/user.h b/arch/mipsn32/bits/user.h
new file mode 100644
index 00000000..60fa1fda
--- /dev/null
+++ b/arch/mipsn32/bits/user.h
@@ -0,0 +1,15 @@
+struct user {
+	unsigned long regs[102];
+	unsigned long u_tsize, u_dsize, u_ssize;
+	unsigned long long start_code, start_data, start_stack;
+	long long signal;
+	unsigned long long *u_ar0;
+	unsigned long long magic;
+	char u_comm[32];
+};
+
+#define ELF_NGREG 45
+#define ELF_NFPREG 33
+
+typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
+typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
diff --git a/arch/mipsn32/crt_arch.h b/arch/mipsn32/crt_arch.h
new file mode 100644
index 00000000..eb5928cc
--- /dev/null
+++ b/arch/mipsn32/crt_arch.h
@@ -0,0 +1,32 @@
+__asm__(
+".set push\n"
+".set noreorder\n"
+".text \n"
+".global _" START "\n"
+".global " START "\n"
+".global " START "_data\n"
+".type   _" START ", @function\n"
+".type   " START ", @function\n"
+".type   " START "_data, @function\n"
+"_" START ":\n"
+"" START ":\n"
+"	bal 1f \n"
+"	move $fp, $0 \n"
+"" START "_data: \n"
+"	.gpword " START "_data \n"
+"	.gpword " START "_c \n"
+".weak _DYNAMIC \n"
+".hidden _DYNAMIC \n"
+"	.gpword _DYNAMIC \n"
+"1:	lw $gp, 0($ra) \n"
+"	subu $gp, $ra, $gp \n"
+"	move $4, $sp \n"
+"	lw $5, 8($ra) \n"
+"	addu $5, $5, $gp \n"
+"	lw $25, 4($ra) \n"
+"	addu $25, $25, $gp \n"
+"	and $sp, $sp, -8 \n"
+"	jalr $25 \n"
+"	subu $sp, $sp, 16 \n"
+".set pop \n"
+);
diff --git a/arch/mipsn32/ksigaction.h b/arch/mipsn32/ksigaction.h
new file mode 100644
index 00000000..9969e3b2
--- /dev/null
+++ b/arch/mipsn32/ksigaction.h
@@ -0,0 +1,8 @@
+struct k_sigaction {
+	unsigned flags;
+	void (*handler)(int);
+	unsigned long mask[4];
+	void (*restorer)();
+};
+
+void __restore(), __restore_rt();
diff --git a/arch/mipsn32/pthread_arch.h b/arch/mipsn32/pthread_arch.h
new file mode 100644
index 00000000..e5812655
--- /dev/null
+++ b/arch/mipsn32/pthread_arch.h
@@ -0,0 +1,18 @@
+static inline struct pthread *__pthread_self()
+{
+#if __mips_isa_rev < 2
+	register char *tp __asm__("$3");
+	__asm__ __volatile__ (".word 0x7c03e83b" : "=r" (tp) );
+#else
+	char *tp;
+	__asm__ __volatile__ ("rdhwr %0, $29" : "=r" (tp) );
+#endif
+	return (pthread_t)(tp - 0x7000 - sizeof(struct pthread));
+}
+
+#define TLS_ABOVE_TP
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) + 0x7000)
+
+#define DTP_OFFSET 0x8000
+
+#define MC_PC pc
diff --git a/arch/mipsn32/reloc.h b/arch/mipsn32/reloc.h
new file mode 100644
index 00000000..728aaab2
--- /dev/null
+++ b/arch/mipsn32/reloc.h
@@ -0,0 +1,52 @@
+#include <endian.h>
+
+#if __mips_isa_rev >= 6
+#define ISA_SUFFIX "r6"
+#else
+#define ISA_SUFFIX ""
+#endif
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+#define ENDIAN_SUFFIX "el"
+#else
+#define ENDIAN_SUFFIX ""
+#endif
+
+#ifdef __mips_soft_float
+#define FP_SUFFIX "-sf"
+#else
+#define FP_SUFFIX ""
+#endif
+
+#define LDSO_ARCH "mipsn32" ISA_SUFFIX ENDIAN_SUFFIX FP_SUFFIX
+
+#define TPOFF_K (-0x7000)
+
+#define REL_SYM_OR_REL  R_MIPS_REL32
+#define REL_PLT         R_MIPS_JUMP_SLOT
+#define REL_COPY        R_MIPS_COPY
+#define REL_DTPMOD      R_MIPS_TLS_DTPMOD32
+#define REL_DTPOFF      R_MIPS_TLS_DTPREL32
+#define REL_TPOFF       R_MIPS_TLS_TPREL32
+
+#define NEED_MIPS_GOT_RELOCS 1
+#define DT_DEBUG_INDIRECT DT_MIPS_RLD_MAP
+#define ARCH_SYM_REJECT_UND(s) (!((s)->st_other & STO_MIPS_PLT))
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+	"move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+	".hidden " #sym "\n" \
+	".set push \n" \
+	".set noreorder \n" \
+	"	bal 1f \n" \
+	"	nop \n" \
+	"	.gpword . \n" \
+	"	.gpword " #sym " \n" \
+	"1:	lw %0, ($ra) \n" \
+	"	subu %0, $ra, %0 \n" \
+	"	lw $ra, 4($ra) \n" \
+	"	addu %0, %0, $ra \n" \
+	".set pop \n" \
+	: "=r"(*(fp)) : : "memory", "ra" )
diff --git a/arch/mipsn32/syscall_arch.h b/arch/mipsn32/syscall_arch.h
new file mode 100644
index 00000000..58d2c8bd
--- /dev/null
+++ b/arch/mipsn32/syscall_arch.h
@@ -0,0 +1,165 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+__attribute__((visibility("hidden")))
+long (__syscall)(long, ...);
+
+#define SYSCALL_RLIM_INFINITY (-1UL/2)
+
+#if _MIPSEL || __MIPSEL || __MIPSEL__
+#define __stat_fix(st) ((st),(void)0)
+#else
+#include <sys/stat.h>
+static inline void __stat_fix(long p)
+{
+	struct stat *st = (struct stat *)p;
+	st->st_dev >>= 32;
+	st->st_rdev >>= 32;
+}
+#endif
+
+#ifndef __clang__
+
+static inline long __syscall0(long n)
+{
+	register long r7 __asm__("$7");
+	register long r2 __asm__("$2");
+	__asm__ __volatile__ (
+		"addu $2,$0,%2 ; syscall"
+		: "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7)
+		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+	return r7 ? -r2 : r2;
+}
+
+static inline long __syscall1(long n, long a)
+{
+	register long r4 __asm__("$4") = a;
+	register long r7 __asm__("$7");
+	register long r2 __asm__("$2");
+	__asm__ __volatile__ (
+		"addu $2,$0,%2 ; syscall"
+		: "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+		  "r"(r4)
+		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+	return r7 ? -r2 : r2;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	register long r4 __asm__("$4") = a;
+	register long r5 __asm__("$5") = b;
+	register long r7 __asm__("$7");
+	register long r2 __asm__("$2");
+	__asm__ __volatile__ (
+		"addu $2,$0,%2 ; syscall"
+		: "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+		  "r"(r4), "r"(r5)
+		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+	if (r7) return -r2;
+	long ret = r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	return ret;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	register long r4 __asm__("$4") = a;
+	register long r5 __asm__("$5") = b;
+	register long r6 __asm__("$6") = c;
+	register long r7 __asm__("$7");
+	register long r2 __asm__("$2");
+	__asm__ __volatile__ (
+		"addu $2,$0,%2 ; syscall"
+		: "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+		  "r"(r4), "r"(r5), "r"(r6)
+		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+	if (r7) return -r2;
+	long ret = r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	return ret;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	register long r4 __asm__("$4") = a;
+	register long r5 __asm__("$5") = b;
+	register long r6 __asm__("$6") = c;
+	register long r7 __asm__("$7") = d;
+	register long r2 __asm__("$2");
+	__asm__ __volatile__ (
+		"addu $2,$0,%2 ; syscall"
+		: "=&r"(r2), "=r"(r7) : "ir"(n), "0"(r2), "1"(r7),
+		  "r"(r4), "r"(r5), "r"(r6)
+		: "$1", "$3", "$8", "$9", "$10", "$11", "$12", "$13",
+		  "$14", "$15", "$24", "$25", "hi", "lo", "memory");
+	if (r7) return -r2;
+	long ret = r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	if (n == SYS_fstatat) __stat_fix(c);
+	return ret;
+}
+
+#else
+
+static inline long __syscall0(long n)
+{
+	return (__syscall)(n);
+}
+
+static inline long __syscall1(long n, long a)
+{
+	return (__syscall)(n, a);
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	long r2 = (__syscall)(n, a, b);
+	if (r2 > -4096UL) return r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	return r2;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	long r2 = (__syscall)(n, a, b, c);
+	if (r2 > -4096UL) return r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	return r2;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	long r2 = (__syscall)(n, a, b, c, d);
+	if (r2 > -4096UL) return r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	if (n == SYS_fstatat) __stat_fix(c);
+	return r2;
+}
+
+#endif
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	long r2 = (__syscall)(n, a, b, c, d, e);
+	if (r2 > -4096UL) return r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	if (n == SYS_fstatat) __stat_fix(c);
+	return r2;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	long r2 = (__syscall)(n, a, b, c, d, e, f);
+	if (r2 > -4096UL) return r2;
+	if (n == SYS_stat || n == SYS_fstat || n == SYS_lstat) __stat_fix(b);
+	if (n == SYS_fstatat) __stat_fix(c);
+	return r2;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_2.6"
diff --git a/configure b/configure
index 969671dd..53241ab7 100755
--- a/configure
+++ b/configure
@@ -618,6 +618,7 @@ trycppif __mips_soft_float "$t" && SUBARCH=${SUBARCH}-sf
 fi
 
 if test "$ARCH" = "mips64" ; then
+trycppif "_MIPS_SIM != _ABI64" "$t" && ARCH=mipsn32
 trycppif "__mips_isa_rev >= 6" "$t" && SUBARCH=${SUBARCH}r6
 trycppif "_MIPSEL || __MIPSEL || __MIPSEL__" "$t" && SUBARCH=${SUBARCH}el
 trycppif __mips_soft_float "$t" && SUBARCH=${SUBARCH}-sf
diff --git a/crt/mipsn32/crti.s b/crt/mipsn32/crti.s
new file mode 100644
index 00000000..14fa28d9
--- /dev/null
+++ b/crt/mipsn32/crti.s
@@ -0,0 +1,18 @@
+.set	noreorder
+.section	.init
+.global	_init
+.type	_init,@function
+.align	2
+_init:
+	subu	$sp, $sp, 32
+	sd	$gp, 16($sp)
+	sd	$ra, 24($sp)
+
+.section	.fini
+.global	_fini
+.type	_fini,@function
+.align	2
+_fini:
+	subu	$sp, $sp, 32
+	sd	$gp, 16($sp)
+	sd	$ra, 24($sp)
diff --git a/crt/mipsn32/crtn.s b/crt/mipsn32/crtn.s
new file mode 100644
index 00000000..dccd7e89
--- /dev/null
+++ b/crt/mipsn32/crtn.s
@@ -0,0 +1,12 @@
+.set	noreorder
+.section	.init
+	ld	$gp, 16($sp)
+	ld	$ra, 24($sp)
+	j	$ra
+	addu	$sp, $sp, 32
+
+.section	.fini
+	ld	$gp, 16($sp)
+	ld	$ra, 24($sp)
+	j	$ra
+	addu	$sp, $sp, 32
diff --git a/src/fenv/mipsn32/fenv-sf.c b/src/fenv/mipsn32/fenv-sf.c
new file mode 100644
index 00000000..4aa3dbf1
--- /dev/null
+++ b/src/fenv/mipsn32/fenv-sf.c
@@ -0,0 +1,3 @@
+#ifdef __mips_soft_float
+#include "../fenv.c"
+#endif
diff --git a/src/fenv/mipsn32/fenv.S b/src/fenv/mipsn32/fenv.S
new file mode 100644
index 00000000..cce6436b
--- /dev/null
+++ b/src/fenv/mipsn32/fenv.S
@@ -0,0 +1,70 @@
+#ifndef __mips_soft_float
+
+.set	noreorder
+.global	feclearexcept
+.type	feclearexcept,@function
+feclearexcept:
+	and	$4, $4, 0x7c
+	cfc1	$5, $31
+	or	$5, $5, $4
+	xor	$5, $5, $4
+	ctc1	$5, $31
+	jr	$ra
+	li	$2, 0
+
+.global feraiseexcept
+.type  feraiseexcept,@function
+feraiseexcept:
+	and	$4, $4, 0x7c
+	cfc1	$5, $31
+	or	$5, $5, $4
+	ctc1	$5, $31
+	jr	$ra
+	li	$2, 0
+
+.global fetestexcept
+.type  fetestexcept,@function
+fetestexcept:
+	and	$4, $4, 0x7c
+	cfc1	$2, $31
+	jr	$ra
+	and	$2, $2, $4
+
+.global fegetround
+.type  fegetround,@function
+fegetround:
+	cfc1	$2, $31
+	jr	$ra
+	andi	$2, $2, 3
+
+.global __fesetround
+.type __fesetround,@function
+__fesetround:
+	cfc1	$5, $31
+	li	$6, -4
+	and	$5, $5, $6
+	or	$5, $5, $4
+	ctc1	$5, $31
+	jr	$ra
+	li	$2, 0
+
+.global fegetenv
+.type  fegetenv,@function
+fegetenv:
+	cfc1	$5, $31
+	sw	$5, 0($4)
+	jr	$ra
+	li	$2, 0
+
+.global fesetenv
+.type  fesetenv,@function
+fesetenv:
+	addiu   $5, $4, 1
+	beq	$5, $0, 1f
+	nop
+	lw	$5, 0($4)
+1:	ctc1	$5, $31
+	jr	$ra
+	li	$2, 0
+
+#endif
diff --git a/src/internal/mipsn32/syscall.s b/src/internal/mipsn32/syscall.s
new file mode 100644
index 00000000..510a6fa4
--- /dev/null
+++ b/src/internal/mipsn32/syscall.s
@@ -0,0 +1,19 @@
+.set	noreorder
+.global	__syscall
+.hidden	__syscall
+.type	__syscall,@function
+__syscall:
+	move	$2, $4
+	move	$4, $5
+	move	$5, $6
+	move	$6, $7
+	move	$7, $8
+	move	$8, $9
+	move	$9, $10
+	move	$10, $11
+	syscall
+	beq	$7, $0, 1f
+	nop
+	subu	$2, $0, $2
+1:	jr	$ra
+	nop
diff --git a/src/ldso/mipsn32/dlsym.s b/src/ldso/mipsn32/dlsym.s
new file mode 100644
index 00000000..1c82da30
--- /dev/null
+++ b/src/ldso/mipsn32/dlsym.s
@@ -0,0 +1,17 @@
+.set	noreorder
+.global	dlsym
+.hidden	__dlsym
+.type	dlsym,@function
+dlsym:
+	lui	$3, %hi(%neg(%gp_rel(dlsym)))
+	addiu	$3, $3, %lo(%neg(%gp_rel(dlsym)))
+	addu	$3, $3, $25
+	move	$6, $ra
+	lw	$25, %got_disp(__dlsym)($3)
+	addiu	$sp, $sp, -32
+	sd	$ra, 16($sp)
+	jalr	$25
+	nop
+	ld	$ra, 16($sp)
+	jr	$ra
+	addiu	$sp, $sp, 32
diff --git a/src/setjmp/mipsn32/longjmp.S b/src/setjmp/mipsn32/longjmp.S
new file mode 100644
index 00000000..30c3ee0b
--- /dev/null
+++ b/src/setjmp/mipsn32/longjmp.S
@@ -0,0 +1,36 @@
+.set	noreorder
+.global	_longjmp
+.global	longjmp
+.type	_longjmp,@function
+.type	longjmp,@function
+_longjmp:
+longjmp:
+	move	$2, $5
+	bne	$2, $0, 1f
+	nop
+	addu	$2, $2, 1
+1:
+#ifndef __mips_soft_float
+	ldc1	$24, 96($4)
+	ldc1	$25, 104($4)
+	ldc1	$26, 112($4)
+	ldc1	$27, 120($4)
+	ldc1	$28, 128($4)
+	ldc1	$29, 136($4)
+	ldc1	$30, 144($4)
+	ldc1	$31, 152($4)
+#endif
+	ld	$ra, 0($4)
+	ld	$sp, 8($4)
+	ld	$gp, 16($4)
+	ld	$16, 24($4)
+	ld	$17, 32($4)
+	ld	$18, 40($4)
+	ld	$19, 48($4)
+	ld	$20, 56($4)
+	ld	$21, 64($4)
+	ld	$22, 72($4)
+	ld	$23, 80($4)
+	ld	$30, 88($4)
+	jr	$ra
+	nop
diff --git a/src/setjmp/mipsn32/setjmp.S b/src/setjmp/mipsn32/setjmp.S
new file mode 100644
index 00000000..b9646c2a
--- /dev/null
+++ b/src/setjmp/mipsn32/setjmp.S
@@ -0,0 +1,34 @@
+.set	noreorder
+.global	__setjmp
+.global	_setjmp
+.global	setjmp
+.type	__setjmp,@function
+.type	_setjmp,@function
+.type	setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+	sd	$ra, 0($4)
+	sd	$sp, 8($4)
+	sd	$gp, 16($4)
+	sd	$16, 24($4)
+	sd	$17, 32($4)
+	sd	$18, 40($4)
+	sd	$19, 48($4)
+	sd	$20, 56($4)
+	sd	$21, 64($4)
+	sd	$22, 72($4)
+	sd	$23, 80($4)
+	sd	$30, 88($4)
+#ifndef __mips_soft_float
+	sdc1	$24, 96($4)
+	sdc1	$25, 104($4)
+	sdc1	$26, 112($4)
+	sdc1	$27, 120($4)
+	sdc1	$28, 128($4)
+	sdc1	$29, 136($4)
+	sdc1	$30, 144($4)
+	sdc1	$31, 152($4)
+#endif
+	jr	$ra
+	li	$2, 0
diff --git a/src/signal/mipsn32/restore.s b/src/signal/mipsn32/restore.s
new file mode 100644
index 00000000..0d1c1c5e
--- /dev/null
+++ b/src/signal/mipsn32/restore.s
@@ -0,0 +1,9 @@
+.set	noreorder
+.global	__restore_rt
+.global	__restore
+.type	__restore_rt,@function
+.type	__restore,@function
+__restore_rt:
+__restore:
+	li	$2,6211
+	syscall
diff --git a/src/signal/mipsn32/sigsetjmp.s b/src/signal/mipsn32/sigsetjmp.s
new file mode 100644
index 00000000..c0c6961f
--- /dev/null
+++ b/src/signal/mipsn32/sigsetjmp.s
@@ -0,0 +1,38 @@
+.set	noreorder
+.global	sigsetjmp
+.global	__sigsetjmp
+.type	sigsetjmp,@function
+.type	__sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+	lui	$3, %hi(%neg(%gp_rel(sigsetjmp)))
+	addiu	$3, $3, %lo(%neg(%gp_rel(sigsetjmp)))
+
+	# comparing save mask with 0, if equals to 0 then
+	# sigsetjmp is equal to setjmp.
+	beq	$5, $0, 1f
+	addu	$3, $3, $25
+	sd	$ra, 160($4)
+	sd	$16, 168($4)
+
+	# save base of got so that we can use it later
+	# once we return from 'longjmp'
+	sd	$3, 176($4)
+	lw	$25, %got_disp(setjmp)($3)
+	jalr	$25
+	move	$16, $4
+
+	move	$5, $2		# Return from 'setjmp' or 'longjmp'
+	move	$4, $16		# Restore the pointer-to-sigjmp_buf
+	ld	$ra, 160($4)	# Restore ra of sigsetjmp
+	ld	$16, 168($4)	# Restore $16 of sigsetjmp
+	ld	$3, 176($4)	# Restore base of got
+
+.hidden	__sigsetjmp_tail
+	lw	$25, %got_disp(__sigsetjmp_tail)($3)
+	jr	$25
+	nop
+1:
+	lw	$25, %got_disp(setjmp)($3)
+	jr	$25
+	nop
diff --git a/src/thread/mipsn32/__unmapself.s b/src/thread/mipsn32/__unmapself.s
new file mode 100644
index 00000000..4b032e5e
--- /dev/null
+++ b/src/thread/mipsn32/__unmapself.s
@@ -0,0 +1,9 @@
+.set	noreorder
+.global	__unmapself
+.type	__unmapself,@function
+__unmapself:
+	li	$2, 6011
+	syscall
+	li	$4, 0
+	li	$2, 6058
+	syscall
diff --git a/src/thread/mipsn32/clone.s b/src/thread/mipsn32/clone.s
new file mode 100644
index 00000000..51035852
--- /dev/null
+++ b/src/thread/mipsn32/clone.s
@@ -0,0 +1,30 @@
+.set	noreorder
+.global	__clone
+.type	__clone,@function
+__clone:
+	# Save function pointer and argument pointer on new thread stack
+	and	$5, $5, -16	# aligning stack to double word
+	subu	$5, $5, 16
+	sw	$4, 0($5)	# save function pointer
+	sw	$7, 4($5)	# save argument pointer
+
+	# Shuffle (fn,sp,fl,arg,ptid,tls,ctid) to (fl,sp,ptid,tls,ctid)
+	# sys_clone(u64 flags, u64 ustack_base, u64 parent_tidptr, u64 child_tidptr, u64 tls)
+	move	$4, $6
+	move	$6, $8
+	move	$7, $9
+	move	$8, $10
+	li	$2, 6055
+	syscall
+	beq	$7, $0, 1f
+	nop
+	jr	$ra
+	subu	$2, $0, $2
+1:	beq	$2, $0, 1f
+	nop
+	jr	$ra
+	nop
+1:	lw	$25, 0($sp)	# function pointer
+	lw	$4, 4($sp)	# argument pointer
+	jr	$25		# call the user's function
+	nop
diff --git a/src/thread/mipsn32/syscall_cp.s b/src/thread/mipsn32/syscall_cp.s
new file mode 100644
index 00000000..e85615bc
--- /dev/null
+++ b/src/thread/mipsn32/syscall_cp.s
@@ -0,0 +1,51 @@
+.set	noreorder
+.global	__cp_begin
+.hidden	__cp_begin
+.type	__cp_begin,@function
+.global	__cp_end
+.hidden	__cp_end
+.type	__cp_end,@function
+.global	__cp_cancel
+.hidden	__cp_cancel
+.type	__cp_cancel,@function
+.global	__cp_cancel_data
+.hidden	__cp_cancel_data
+.type	__cp_cancel_data,@function
+.hidden	__cancel
+.global	__syscall_cp_asm
+.hidden	__syscall_cp_asm
+.type	__syscall_cp_asm,@function
+__syscall_cp_asm:
+__cp_begin:
+	lw	$4, 0($4)
+	bne	$4, $0, __cp_cancel
+	move	$2, $5
+	move	$4, $6
+	move	$5, $7
+	move	$6, $8
+	move	$7, $9
+	move	$8, $10
+	move	$9, $11
+	lw	$10, 0($sp)
+	syscall
+__cp_end:
+	beq	$7, $0, 1f
+	nop
+	subu	$2, $0, $2
+1:	jr	$ra
+	nop
+
+	# if cancellation flag is 1 then call __cancel
+__cp_cancel:
+	move	$2, $ra
+	bal	1f
+	nop
+__cp_cancel_data:
+	.gpword __cp_cancel_data
+	.gpword __cancel
+1:	lw	$3, 0($ra)
+	subu	$3, $ra, $3
+	lw	$25, 4($ra)
+	addu	$25, $25, $3
+	jr	$25
+	move	$ra, $2
diff --git a/src/unistd/mipsn32/pipe.s b/src/unistd/mipsn32/pipe.s
new file mode 100644
index 00000000..80f882e2
--- /dev/null
+++ b/src/unistd/mipsn32/pipe.s
@@ -0,0 +1,19 @@
+.set	noreorder
+.global	pipe
+.type	pipe,@function
+pipe:
+	lui	$3, %hi(%neg(%gp_rel(pipe)))
+	addiu	$3, $3, %lo(%neg(%gp_rel(pipe)))
+	addu	$3, $3, $25
+	li	$2, 6021
+	syscall
+	beq	$7, $0, 1f
+	nop
+	lw	$25, %got_disp(__syscall_ret)($3)
+	jr	$25
+	subu	$4, $0, $2
+1:	sw	$2, 0($4)
+	sw	$3, 4($4)
+	move	$2, $0
+	jr	$ra
+	nop