add or1k (OpenRISC 1000) architecture port

With the exception of a fenv implementation, the port is fully featured.
The port has been tested in or1ksim, the golden reference functional
simulator for OpenRISC 1000.
It passes all libc-test tests (except the math tests that
requires a fenv implementation).

The port assumes an or1k implementation that has support for
atomic instructions (l.lwa/l.swa).

Although it passes all the libc-test tests, the port is still
in an experimental state, and has yet experienced very little
'real-world' use.

32 files changed, 1737 insertions, 0 deletions

diff --git a/arch/or1k/atomic.h b/arch/or1k/atomic.h
new file mode 100644
index 00000000..0fb61de1
--- /dev/null
+++ b/arch/or1k/atomic.h
@@ -0,0 +1,122 @@
+#ifndef _INTERNAL_ATOMIC_H
+#define _INTERNAL_ATOMIC_H
+
+#include <stdint.h>
+
+static inline int a_ctz_l(unsigned long x)
+{
+	static const char debruijn32[32] = {
+		0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+		31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+	};
+	return debruijn32[(x&-x)*0x076be629 >> 27];
+}
+
+static inline int a_ctz_64(uint64_t x)
+{
+	uint32_t y = x;
+	if (!y) {
+		y = x>>32;
+		return 32 + a_ctz_l(y);
+	}
+	return a_ctz_l(y);
+}
+
+static inline int a_cas(volatile int *p, int t, int s)
+{
+	__asm__("1:	l.lwa %0, %1\n"
+		"	l.sfeq %0, %2\n"
+		"	l.bnf 1f\n"
+		"	 l.nop\n"
+		"	l.swa %1, %3\n"
+		"	l.bnf 1b\n"
+		"	 l.nop\n"
+		"1:	\n"
+		: "=&r"(t), "+m"(*p) : "r"(t), "r"(s) : "cc", "memory" );
+        return t;
+}
+
+static inline void *a_cas_p(volatile void *p, void *t, void *s)
+{
+	return (void *)a_cas(p, (int)t, (int)s);
+}
+
+static inline long a_cas_l(volatile void *p, long t, long s)
+{
+	return a_cas(p, t, s);
+}
+
+static inline int a_swap(volatile int *x, int v)
+{
+	int old;
+	do old = *x;
+	while (a_cas(x, old, v) != old);
+	return old;
+}
+
+static inline int a_fetch_add(volatile int *x, int v)
+{
+	int old;
+	do old = *x;
+	while (a_cas(x, old, old+v) != old);
+	return old;
+}
+
+static inline void a_inc(volatile int *x)
+{
+	a_fetch_add(x, 1);
+}
+
+static inline void a_dec(volatile int *x)
+{
+	a_fetch_add(x, -1);
+}
+
+static inline void a_store(volatile int *p, int x)
+{
+	*p=x;
+}
+
+static inline void a_spin()
+{
+}
+
+static inline void a_crash()
+{
+	*(volatile char *)0=0;
+}
+
+static inline void a_and(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, old&v) != old);
+}
+
+static inline void a_or(volatile int *p, int v)
+{
+	int old;
+	do old = *p;
+	while (a_cas(p, old, old|v) != old);
+}
+
+static inline void a_or_l(volatile void *p, long v)
+{
+	a_or(p, v);
+}
+
+static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+{
+	union { uint64_t v; uint32_t r[2]; } u = { v };
+	a_and((int *)p, u.r[0]);
+	a_and((int *)p+1, u.r[1]);
+}
+
+static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+{
+	union { uint64_t v; uint32_t r[2]; } u = { v };
+	a_or((int *)p, u.r[0]);
+	a_or((int *)p+1, u.r[1]);
+}
+
+#endif
diff --git a/arch/or1k/bits/alltypes.h.in b/arch/or1k/bits/alltypes.h.in
new file mode 100644
index 00000000..bd23a6ae
--- /dev/null
+++ b/arch/or1k/bits/alltypes.h.in
@@ -0,0 +1,23 @@
+#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 unsigned wchar_t;
+#endif
+TYPEDEF unsigned wint_t;
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF long time_t;
+TYPEDEF long suseconds_t;
+
+TYPEDEF struct { union { int __i[9]; unsigned __s[9]; } __u; } pthread_attr_t;
+TYPEDEF struct { union { int __i[6]; void *__p[6]; } __u; } pthread_mutex_t;
+TYPEDEF struct { union { int __i[12]; void *__p[12]; } __u; } pthread_cond_t;
+TYPEDEF struct { union { int __i[8]; void *__p[8]; } __u; } pthread_rwlock_t;
+TYPEDEF struct { union { int __i[5]; void *__p[5]; } __u; } pthread_barrier_t;
diff --git a/arch/or1k/bits/endian.h b/arch/or1k/bits/endian.h
new file mode 100644
index 00000000..ef074b77
--- /dev/null
+++ b/arch/or1k/bits/endian.h
@@ -0,0 +1 @@
+#define __BYTE_ORDER __BIG_ENDIAN
diff --git a/arch/or1k/bits/errno.h b/arch/or1k/bits/errno.h
new file mode 100644
index 00000000..d2e1eeee
--- /dev/null
+++ b/arch/or1k/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 EDEADLK         35
+#define ENAMETOOLONG    36
+#define ENOLCK          37
+#define ENOSYS          38
+#define ENOTEMPTY       39
+#define ELOOP           40
+#define EWOULDBLOCK     EAGAIN
+#define ENOMSG          42
+#define EIDRM           43
+#define ECHRNG          44
+#define EL2NSYNC        45
+#define EL3HLT          46
+#define EL3RST          47
+#define ELNRNG          48
+#define EUNATCH         49
+#define ENOCSI          50
+#define EL2HLT          51
+#define EBADE           52
+#define EBADR           53
+#define EXFULL          54
+#define ENOANO          55
+#define EBADRQC         56
+#define EBADSLT         57
+#define EDEADLOCK       EDEADLK
+#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 EMULTIHOP       72
+#define EDOTDOT         73
+#define EBADMSG         74
+#define EOVERFLOW       75
+#define ENOTUNIQ        76
+#define EBADFD          77
+#define EREMCHG         78
+#define ELIBACC         79
+#define ELIBBAD         80
+#define ELIBSCN         81
+#define ELIBMAX         82
+#define ELIBEXEC        83
+#define EILSEQ          84
+#define ERESTART        85
+#define ESTRPIPE        86
+#define EUSERS          87
+#define ENOTSOCK        88
+#define EDESTADDRREQ    89
+#define EMSGSIZE        90
+#define EPROTOTYPE      91
+#define ENOPROTOOPT     92
+#define EPROTONOSUPPORT 93
+#define ESOCKTNOSUPPORT 94
+#define EOPNOTSUPP      95
+#define ENOTSUP         EOPNOTSUPP
+#define EPFNOSUPPORT    96
+#define EAFNOSUPPORT    97
+#define EADDRINUSE      98
+#define EADDRNOTAVAIL   99
+#define ENETDOWN        100
+#define ENETUNREACH     101
+#define ENETRESET       102
+#define ECONNABORTED    103
+#define ECONNRESET      104
+#define ENOBUFS         105
+#define EISCONN         106
+#define ENOTCONN        107
+#define ESHUTDOWN       108
+#define ETOOMANYREFS    109
+#define ETIMEDOUT       110
+#define ECONNREFUSED    111
+#define EHOSTDOWN       112
+#define EHOSTUNREACH    113
+#define EALREADY        114
+#define EINPROGRESS     115
+#define ESTALE          116
+#define EUCLEAN         117
+#define ENOTNAM         118
+#define ENAVAIL         119
+#define EISNAM          120
+#define EREMOTEIO       121
+#define EDQUOT          122
+#define ENOMEDIUM       123
+#define EMEDIUMTYPE     124
+#define ECANCELED       125
+#define ENOKEY          126
+#define EKEYEXPIRED     127
+#define EKEYREVOKED     128
+#define EKEYREJECTED    129
+#define EOWNERDEAD      130
+#define ENOTRECOVERABLE 131
+#define ERFKILL         132
+#define EHWPOISON       133
diff --git a/arch/or1k/bits/fcntl.h b/arch/or1k/bits/fcntl.h
new file mode 100644
index 00000000..0fa8e19c
--- /dev/null
+++ b/arch/or1k/bits/fcntl.h
@@ -0,0 +1,39 @@
+#define O_CREAT        0100
+#define O_EXCL         0200
+#define O_NOCTTY       0400
+#define O_TRUNC       01000
+#define O_APPEND      02000
+#define O_NONBLOCK    04000
+#define O_DSYNC      010000
+#define O_SYNC     04010000
+#define O_RSYNC    04010000
+#define O_DIRECTORY 0200000
+#define O_NOFOLLOW  0400000
+#define O_CLOEXEC  02000000
+
+#define O_ASYNC      020000
+#define O_DIRECT     040000
+#define O_LARGEFILE 0100000
+#define O_NOATIME  01000000
+#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 8
+#define F_GETOWN 9
+#define F_SETSIG 10
+#define F_GETSIG 11
+
+#define F_GETLK 12
+#define F_SETLK 13
+#define F_SETLKW 14
+
+#define F_SETOWN_EX 15
+#define F_GETOWN_EX 16
+
+#define F_GETOWNER_UIDS 17
diff --git a/arch/or1k/bits/fenv.h b/arch/or1k/bits/fenv.h
new file mode 100644
index 00000000..edbdea2a
--- /dev/null
+++ b/arch/or1k/bits/fenv.h
@@ -0,0 +1,10 @@
+#define FE_ALL_EXCEPT 0
+#define FE_TONEAREST  0
+
+typedef unsigned long fexcept_t;
+
+typedef struct {
+	unsigned long __cw;
+} fenv_t;
+
+#define FE_DFL_ENV      ((const fenv_t *) -1)
diff --git a/arch/or1k/bits/float.h b/arch/or1k/bits/float.h
new file mode 100644
index 00000000..ec46b94b
--- /dev/null
+++ b/arch/or1k/bits/float.h
@@ -0,0 +1,17 @@
+#define FLT_ROUNDS 1
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 4.94065645841246544177e-324L
+#define LDBL_MIN 2.22507385850720138309e-308L
+#define LDBL_MAX 1.79769313486231570815e+308L
+#define LDBL_EPSILON 2.22044604925031308085e-16L
+
+#define LDBL_MANT_DIG 53
+#define LDBL_MIN_EXP (-1021)
+#define LDBL_MAX_EXP 1024
+
+#define LDBL_DIG 15
+#define LDBL_MIN_10_EXP (-307)
+#define LDBL_MAX_10_EXP 308
+
+#define DECIMAL_DIG 17
diff --git a/arch/or1k/bits/io.h b/arch/or1k/bits/io.h
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/arch/or1k/bits/io.h
diff --git a/arch/or1k/bits/ioctl.h b/arch/or1k/bits/ioctl.h
new file mode 100644
index 00000000..9d75118e
--- /dev/null
+++ b/arch/or1k/bits/ioctl.h
@@ -0,0 +1,197 @@
+#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+#define _IOC_NONE  0U
+#define _IOC_WRITE 1U
+#define _IOC_READ  2U
+
+#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 TCGETS		0x5401
+#define TCSETS		0x5402
+#define TCSETSW		0x5403
+#define TCSETSF		0x5404
+#define TCGETA		0x5405
+#define TCSETA		0x5406
+#define TCSETAW		0x5407
+#define TCSETAF		0x5408
+#define TCSBRK		0x5409
+#define TCXONC		0x540A
+#define TCFLSH		0x540B
+#define TIOCEXCL	0x540C
+#define TIOCNXCL	0x540D
+#define TIOCSCTTY	0x540E
+#define TIOCGPGRP	0x540F
+#define TIOCSPGRP	0x5410
+#define TIOCOUTQ	0x5411
+#define TIOCSTI		0x5412
+#define TIOCGWINSZ	0x5413
+#define TIOCSWINSZ	0x5414
+#define TIOCMGET	0x5415
+#define TIOCMBIS	0x5416
+#define TIOCMBIC	0x5417
+#define TIOCMSET	0x5418
+#define TIOCGSOFTCAR	0x5419
+#define TIOCSSOFTCAR	0x541A
+#define FIONREAD	0x541B
+#define TIOCINQ		FIONREAD
+#define TIOCLINUX	0x541C
+#define TIOCCONS	0x541D
+#define TIOCGSERIAL	0x541E
+#define TIOCSSERIAL	0x541F
+#define TIOCPKT		0x5420
+#define FIONBIO		0x5421
+#define TIOCNOTTY	0x5422
+#define TIOCSETD	0x5423
+#define TIOCGETD	0x5424
+#define TCSBRKP		0x5425
+#define TIOCTTYGSTRUCT	0x5426
+#define TIOCSBRK	0x5427
+#define TIOCCBRK	0x5428
+#define TIOCGSID	0x5429
+#define TIOCGPTN	0x80045430
+#define TIOCSPTLCK	0x40045431
+#define TCGETX		0x5432
+#define TCSETX		0x5433
+#define TCSETXF		0x5434
+#define TCSETXW		0x5435
+
+#define FIONCLEX	0x5450
+#define FIOCLEX		0x5451
+#define FIOASYNC	0x5452
+#define TIOCSERCONFIG	0x5453
+#define TIOCSERGWILD	0x5454
+#define TIOCSERSWILD	0x5455
+#define TIOCGLCKTRMIOS	0x5456
+#define TIOCSLCKTRMIOS	0x5457
+#define TIOCSERGSTRUCT	0x5458
+#define TIOCSERGETLSR   0x5459
+#define TIOCSERGETMULTI 0x545A
+#define TIOCSERSETMULTI 0x545B
+
+#define TIOCMIWAIT	0x545C
+#define TIOCGICOUNT	0x545D
+#define TIOCGHAYESESP   0x545E
+#define TIOCSHAYESESP   0x545F
+#define FIOQSIZE	0x5460
+
+#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/or1k/bits/ipc.h b/arch/or1k/bits/ipc.h
new file mode 100644
index 00000000..3d894e30
--- /dev/null
+++ b/arch/or1k/bits/ipc.h
@@ -0,0 +1,13 @@
+struct ipc_perm {
+	key_t __ipc_perm_key;
+	uid_t uid;
+	gid_t gid;
+	uid_t cuid;
+	gid_t cgid;
+	mode_t mode;
+	int __ipc_perm_seq;
+	long __pad1;
+	long __pad2;
+};
+
+#define IPC_64 0
diff --git a/arch/or1k/bits/limits.h b/arch/or1k/bits/limits.h
new file mode 100644
index 00000000..fbc6d238
--- /dev/null
+++ b/arch/or1k/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/or1k/bits/mman.h b/arch/or1k/bits/mman.h
new file mode 100644
index 00000000..8c4110f1
--- /dev/null
+++ b/arch/or1k/bits/mman.h
@@ -0,0 +1,61 @@
+#define MAP_FAILED ((void *) -1)
+
+#define	PROT_NONE      0
+#define	PROT_READ      1
+#define	PROT_WRITE     2
+#define	PROT_EXEC      4
+#define	PROT_GROWSDOWN 0x01000000
+#define	PROT_GROWSUP   0x02000000
+
+#define	MAP_SHARED     0x01
+#define	MAP_PRIVATE    0x02
+#define	MAP_FIXED      0x10
+
+#define MAP_TYPE       0x0f
+#define MAP_FILE       0x00
+#define MAP_ANON       0x20
+#define MAP_ANONYMOUS  MAP_ANON
+#define MAP_NORESERVE  0x4000
+#define MAP_GROWSDOWN  0x0100
+#define MAP_DENYWRITE  0x0800
+#define MAP_EXECUTABLE 0x1000
+#define MAP_LOCKED     0x2000
+#define MAP_POPULATE   0x8000
+#define MAP_NONBLOCK   0x10000
+#define MAP_STACK      0x20000
+#define MAP_HUGETLB    0x40000
+
+#define POSIX_MADV_NORMAL       0
+#define POSIX_MADV_RANDOM       1
+#define POSIX_MADV_SEQUENTIAL   2
+#define POSIX_MADV_WILLNEED     3
+#define POSIX_MADV_DONTNEED     0
+
+#define MS_ASYNC        1
+#define MS_INVALIDATE   2
+#define MS_SYNC         4
+
+#define MCL_CURRENT     1
+#define MCL_FUTURE      2
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MADV_NORMAL      0
+#define MADV_RANDOM      1
+#define MADV_SEQUENTIAL  2
+#define MADV_WILLNEED    3
+#define MADV_DONTNEED    4
+#define MADV_REMOVE      9
+#define MADV_DONTFORK    10
+#define MADV_DOFORK      11
+#define MADV_MERGEABLE   12
+#define MADV_UNMERGEABLE 13
+#define MADV_HUGEPAGE    14
+#define MADV_NOHUGEPAGE  15
+#define MADV_DONTDUMP    16
+#define MADV_DODUMP      17
+#define MADV_HWPOISON    100
+#define MADV_SOFT_OFFLINE 101
+
+#define MREMAP_MAYMOVE  1
+#define MREMAP_FIXED    2
+#endif
diff --git a/arch/or1k/bits/msg.h b/arch/or1k/bits/msg.h
new file mode 100644
index 00000000..bc8436c4
--- /dev/null
+++ b/arch/or1k/bits/msg.h
@@ -0,0 +1,15 @@
+struct msqid_ds {
+	struct ipc_perm msg_perm;
+	time_t msg_stime;
+	int __unused1;
+	time_t msg_rtime;
+	int __unused2;
+	time_t msg_ctime;
+	int __unused3;
+	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/or1k/bits/posix.h b/arch/or1k/bits/posix.h
new file mode 100644
index 00000000..30a38714
--- /dev/null
+++ b/arch/or1k/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_ILP32_OFFBIG  1
+#define _POSIX_V7_ILP32_OFFBIG  1
diff --git a/arch/or1k/bits/reg.h b/arch/or1k/bits/reg.h
new file mode 100644
index 00000000..0c7bffca
--- /dev/null
+++ b/arch/or1k/bits/reg.h
@@ -0,0 +1,3 @@
+#undef __WORDSIZE
+#define __WORDSIZE 32
+/* FIXME */
diff --git a/arch/or1k/bits/resource.h b/arch/or1k/bits/resource.h
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/arch/or1k/bits/resource.h
diff --git a/arch/or1k/bits/sem.h b/arch/or1k/bits/sem.h
new file mode 100644
index 00000000..0d916484
--- /dev/null
+++ b/arch/or1k/bits/sem.h
@@ -0,0 +1,11 @@
+struct semid_ds {
+	struct ipc_perm sem_perm;
+	time_t sem_otime;
+	time_t __unused1;
+	time_t sem_ctime;
+	time_t __unused2;
+	char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+	unsigned short sem_nsems;
+	time_t __unused3;
+	time_t __unused4;
+};
diff --git a/arch/or1k/bits/setjmp.h b/arch/or1k/bits/setjmp.h
new file mode 100644
index 00000000..bef7fe2a
--- /dev/null
+++ b/arch/or1k/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long __jmp_buf[13];
diff --git a/arch/or1k/bits/shm.h b/arch/or1k/bits/shm.h
new file mode 100644
index 00000000..81b2a29a
--- /dev/null
+++ b/arch/or1k/bits/shm.h
@@ -0,0 +1,27 @@
+#define SHMLBA 4096
+
+struct shmid_ds {
+	struct ipc_perm shm_perm;
+	size_t shm_segsz;
+	time_t shm_atime;
+	int __unused1;
+	time_t shm_dtime;
+	int __unused2;
+	time_t shm_ctime;
+	int __unused3;
+	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/or1k/bits/signal.h b/arch/or1k/bits/signal.h
new file mode 100644
index 00000000..c5e9c0cd
--- /dev/null
+++ b/arch/or1k/bits/signal.h
@@ -0,0 +1,80 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef unsigned long greg_t, gregset_t[34];
+typedef struct sigcontext {
+	struct {
+		unsigned long gpr[32];
+		unsigned long pc;
+		unsigned long sr;
+	} regs;
+	unsigned long oldmask;
+} mcontext_t;
+#else
+typedef struct {
+	unsigned long __regs[35];
+} mcontext_t;
+#endif
+
+struct sigaltstack {
+	void *ss_sp;
+	int ss_flags;
+	size_t ss_size;
+};
+
+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  2
+#define SA_SIGINFO    4
+#define SA_ONSTACK    0x08000000
+#define SA_RESTART    0x10000000
+#define SA_NODEFER    0x40000000
+#define SA_RESETHAND  0x80000000
+#define SA_RESTORER   0x04000000
+
+#endif
+
+#define SIGHUP    1
+#define SIGINT    2
+#define SIGQUIT   3
+#define SIGILL    4
+#define SIGTRAP   5
+#define SIGABRT   6
+#define SIGIOT    SIGABRT
+#define SIGBUS    7
+#define SIGFPE    8
+#define SIGKILL   9
+#define SIGUSR1   10
+#define SIGSEGV   11
+#define SIGUSR2   12
+#define SIGPIPE   13
+#define SIGALRM   14
+#define SIGTERM   15
+#define SIGSTKFLT 16
+#define SIGCHLD   17
+#define SIGCONT   18
+#define SIGSTOP   19
+#define SIGTSTP   20
+#define SIGTTIN   21
+#define SIGTTOU   22
+#define SIGURG    23
+#define SIGXCPU   24
+#define SIGXFSZ   25
+#define SIGVTALRM 26
+#define SIGPROF   27
+#define SIGWINCH  28
+#define SIGIO     29
+#define SIGPOLL   29
+#define SIGPWR    30
+#define SIGSYS    31
+#define SIGUNUSED SIGSYS
+
+#define _NSIG 65
diff --git a/arch/or1k/bits/socket.h b/arch/or1k/bits/socket.h
new file mode 100644
index 00000000..1f73b995
--- /dev/null
+++ b/arch/or1k/bits/socket.h
@@ -0,0 +1,15 @@
+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;
+};
diff --git a/arch/or1k/bits/stat.h b/arch/or1k/bits/stat.h
new file mode 100644
index 00000000..ce6a6bd0
--- /dev/null
+++ b/arch/or1k/bits/stat.h
@@ -0,0 +1,21 @@
+/* copied from kernel definition, but with padding replaced
+ * by the corresponding correctly-sized userspace types. */
+
+struct stat {
+	dev_t st_dev;
+	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 long __st_rdev_padding;
+	off_t st_size;
+	blksize_t st_blksize;
+	int __st_blksize_padding;
+	blkcnt_t st_blocks;
+	struct timespec st_atim;
+	struct timespec st_mtim;
+	struct timespec st_ctim;
+	unsigned __unused[2];
+};
diff --git a/arch/or1k/bits/statfs.h b/arch/or1k/bits/statfs.h
new file mode 100644
index 00000000..f103f4e4
--- /dev/null
+++ b/arch/or1k/bits/statfs.h
@@ -0,0 +1,7 @@
+struct statfs {
+	unsigned long f_type, f_bsize;
+	fsblkcnt_t f_blocks, f_bfree, f_bavail;
+	fsfilcnt_t f_files, f_ffree;
+	fsid_t f_fsid;
+	unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+};
diff --git a/arch/or1k/bits/stdarg.h b/arch/or1k/bits/stdarg.h
new file mode 100644
index 00000000..fde37814
--- /dev/null
+++ b/arch/or1k/bits/stdarg.h
@@ -0,0 +1,4 @@
+#define va_start(v,l)   __builtin_va_start(v,l)
+#define va_end(v)       __builtin_va_end(v)
+#define va_arg(v,l)     __builtin_va_arg(v,l)
+#define va_copy(d,s)    __builtin_va_copy(d,s)
diff --git a/arch/or1k/bits/stdint.h b/arch/or1k/bits/stdint.h
new file mode 100644
index 00000000..d1b27121
--- /dev/null
+++ b/arch/or1k/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/or1k/bits/syscall.h b/arch/or1k/bits/syscall.h
new file mode 100644
index 00000000..905229f0
--- /dev/null
+++ b/arch/or1k/bits/syscall.h
@@ -0,0 +1,519 @@
+#define __NR_io_setup 0
+#define __NR_io_destroy 1
+#define __NR_io_submit 2
+#define __NR_io_cancel 3
+#define __NR_io_getevents 4
+#define __NR_setxattr 5
+#define __NR_lsetxattr 6
+#define __NR_fsetxattr 7
+#define __NR_getxattr 8
+#define __NR_lgetxattr 9
+#define __NR_fgetxattr 10
+#define __NR_listxattr 11
+#define __NR_llistxattr 12
+#define __NR_flistxattr 13
+#define __NR_removexattr 14
+#define __NR_lremovexattr 15
+#define __NR_fremovexattr 16
+#define __NR_getcwd 17
+#define __NR_lookup_dcookie 18
+#define __NR_eventfd2 19
+#define __NR_epoll_create1 20
+#define __NR_epoll_ctl 21
+#define __NR_epoll_pwait 22
+#define __NR_dup 23
+#define __NR_dup3 24
+#define __NR_fcntl64 25
+#define __NR_inotify_init1 26
+#define __NR_inotify_add_watch 27
+#define __NR_inotify_rm_watch 28
+#define __NR_ioctl 29
+#define __NR_ioprio_set 30
+#define __NR_ioprio_get 31
+#define __NR_flock 32
+#define __NR_mknodat 33
+#define __NR_mkdirat 34
+#define __NR_unlinkat 35
+#define __NR_symlinkat 36
+#define __NR_linkat 37
+#define __NR_renameat 38
+#define __NR_umount2 39
+#define __NR_mount 40
+#define __NR_pivot_root 41
+#define __NR_nfsservctl 42
+#define __NR_statfs64 43
+#define __NR_fstatfs64 44
+#define __NR_truncate64 45
+#define __NR_ftruncate64 46
+#define __NR_fallocate 47
+#define __NR_faccessat 48
+#define __NR_chdir 49
+#define __NR_fchdir 50
+#define __NR_chroot 51
+#define __NR_fchmod 52
+#define __NR_fchmodat 53
+#define __NR_fchownat 54
+#define __NR_fchown 55
+#define __NR_openat 56
+#define __NR_close 57
+#define __NR_vhangup 58
+#define __NR_pipe2 59
+#define __NR_quotactl 60
+#define __NR_getdents64 61
+#define __NR__llseek 62
+#define __NR_read 63
+#define __NR_write 64
+#define __NR_readv 65
+#define __NR_writev 66
+#define __NR_pread64 67
+#define __NR_pwrite64 68
+#define __NR_preadv 69
+#define __NR_pwritev 70
+#define __NR_sendfile64 71
+#define __NR_pselect6 72
+#define __NR_ppoll 73
+#define __NR_signalfd4 74
+#define __NR_vmsplice 75
+#define __NR_splice 76
+#define __NR_tee 77
+#define __NR_readlinkat 78
+#define __NR_fstatat64 79
+#define __NR_fstat64 80
+#define __NR_sync 81
+#define __NR_fsync 82
+#define __NR_fdatasync 83
+#define __NR_sync_file_range 84
+#define __NR_timerfd_create 85
+#define __NR_timerfd_settime 86
+#define __NR_timerfd_gettime 87
+#define __NR_utimensat 88
+#define __NR_acct 89
+#define __NR_capget 90
+#define __NR_capset 91
+#define __NR_personality 92
+#define __NR_exit 93
+#define __NR_exit_group 94
+#define __NR_waitid 95
+#define __NR_set_tid_address 96
+#define __NR_unshare 97
+#define __NR_futex 98
+#define __NR_set_robust_list 99
+#define __NR_get_robust_list 100
+#define __NR_nanosleep 101
+#define __NR_getitimer 102
+#define __NR_setitimer 103
+#define __NR_kexec_load 104
+#define __NR_init_module 105
+#define __NR_delete_module 106
+#define __NR_timer_create 107
+#define __NR_timer_gettime 108
+#define __NR_timer_getoverrun 109
+#define __NR_timer_settime 110
+#define __NR_timer_delete 111
+#define __NR_clock_settime 112
+#define __NR_clock_gettime 113
+#define __NR_clock_getres 114
+#define __NR_clock_nanosleep 115
+#define __NR_syslog 116
+#define __NR_ptrace 117
+#define __NR_sched_setparam 118
+#define __NR_sched_setscheduler 119
+#define __NR_sched_getscheduler 120
+#define __NR_sched_getparam 121
+#define __NR_sched_setaffinity 122
+#define __NR_sched_getaffinity 123
+#define __NR_sched_yield 124
+#define __NR_sched_get_priority_max 125
+#define __NR_sched_get_priority_min 126
+#define __NR_sched_rr_get_interval 127
+#define __NR_restart_syscall 128
+#define __NR_kill 129
+#define __NR_tkill 130
+#define __NR_tgkill 131
+#define __NR_sigaltstack 132
+#define __NR_rt_sigsuspend 133
+#define __NR_rt_sigaction 134
+#define __NR_rt_sigprocmask 135
+#define __NR_rt_sigpending 136
+#define __NR_rt_sigtimedwait 137
+#define __NR_rt_sigqueueinfo 138
+#define __NR_rt_sigreturn 139
+#define __NR_setpriority 140
+#define __NR_getpriority 141
+#define __NR_reboot 142
+#define __NR_setregid 143
+#define __NR_setgid 144
+#define __NR_setreuid 145
+#define __NR_setuid 146
+#define __NR_setresuid 147
+#define __NR_getresuid 148
+#define __NR_setresgid 149
+#define __NR_getresgid 150
+#define __NR_setfsuid 151
+#define __NR_setfsgid 152
+#define __NR_times 153
+#define __NR_setpgid 154
+#define __NR_getpgid 155
+#define __NR_getsid 156
+#define __NR_setsid 157
+#define __NR_getgroups 158
+#define __NR_setgroups 159
+#define __NR_uname 160
+#define __NR_sethostname 161
+#define __NR_setdomainname 162
+#define __NR_getrlimit 163
+#define __NR_setrlimit 164
+#define __NR_getrusage 165
+#define __NR_umask 166
+#define __NR_prctl 167
+#define __NR_getcpu 168
+#define __NR_gettimeofday 169
+#define __NR_settimeofday 170
+#define __NR_adjtimex 171
+#define __NR_getpid 172
+#define __NR_getppid 173
+#define __NR_getuid 174
+#define __NR_geteuid 175
+#define __NR_getgid 176
+#define __NR_getegid 177
+#define __NR_gettid 178
+#define __NR_sysinfo 179
+#define __NR_mq_open 180
+#define __NR_mq_unlink 181
+#define __NR_mq_timedsend 182
+#define __NR_mq_timedreceive 183
+#define __NR_mq_notify 184
+#define __NR_mq_getsetattr 185
+#define __NR_msgget 186
+#define __NR_msgctl 187
+#define __NR_msgrcv 188
+#define __NR_msgsnd 189
+#define __NR_semget 190
+#define __NR_semctl 191
+#define __NR_semtimedop 192
+#define __NR_semop 193
+#define __NR_shmget 194
+#define __NR_shmctl 195
+#define __NR_shmat 196
+#define __NR_shmdt 197
+#define __NR_socket 198
+#define __NR_socketpair 199
+#define __NR_bind 200
+#define __NR_listen 201
+#define __NR_accept 202
+#define __NR_connect 203
+#define __NR_getsockname 204
+#define __NR_getpeername 205
+#define __NR_sendto 206
+#define __NR_recvfrom 207
+#define __NR_setsockopt 208
+#define __NR_getsockopt 209
+#define __NR_shutdown 210
+#define __NR_sendmsg 211
+#define __NR_recvmsg 212
+#define __NR_readahead 213
+#define __NR_brk 214
+#define __NR_munmap 215
+#define __NR_mremap 216
+#define __NR_add_key 217
+#define __NR_request_key 218
+#define __NR_keyctl 219
+#define __NR_clone 220
+#define __NR_execve 221
+#define __NR_mmap2 222
+#define __NR_fadvise64_64 223
+#define __NR_swapon 224
+#define __NR_swapoff 225
+#define __NR_mprotect 226
+#define __NR_msync 227
+#define __NR_mlock 228
+#define __NR_munlock 229
+#define __NR_mlockall 230
+#define __NR_munlockall 231
+#define __NR_mincore 232
+#define __NR_madvise 233
+#define __NR_remap_file_pages 234
+#define __NR_mbind 235
+#define __NR_get_mempolicy 236
+#define __NR_set_mempolicy 237
+#define __NR_migrate_pages 238
+#define __NR_move_pages 239
+#define __NR_rt_tgsigqueueinfo 240
+#define __NR_perf_event_open 241
+#define __NR_accept4 242
+#define __NR_recvmmsg 243
+#define __NR_or1k_atomic 244
+#define __NR_wait4 260
+#define __NR_prlimit64 261
+#define __NR_fanotify_init 262
+#define __NR_fanotify_mark 263
+#define __NR_name_to_handle_at 264
+#define __NR_open_by_handle_at 265
+#define __NR_clock_adjtime 266
+#define __NR_syncfs 267
+#define __NR_setns 268
+#define __NR_sendmmsg 269
+#define __NR_process_vm_readv 270
+#define __NR_process_vm_writev 271
+#define __NR_kcmp 272
+#define __NR_finit_module 273
+
+#define SYS_io_setup __NR_io_setup
+#define SYS_io_destroy __NR_io_destroy
+#define SYS_io_submit __NR_io_submit
+#define SYS_io_cancel __NR_io_cancel
+#define SYS_io_getevents __NR_io_getevents
+#define SYS_setxattr __NR_setxattr
+#define SYS_lsetxattr __NR_lsetxattr
+#define SYS_fsetxattr __NR_fsetxattr
+#define SYS_getxattr __NR_getxattr
+#define SYS_lgetxattr __NR_lgetxattr
+#define SYS_fgetxattr __NR_fgetxattr
+#define SYS_listxattr __NR_listxattr
+#define SYS_llistxattr __NR_llistxattr
+#define SYS_flistxattr __NR_flistxattr
+#define SYS_removexattr __NR_removexattr
+#define SYS_lremovexattr __NR_lremovexattr
+#define SYS_fremovexattr __NR_fremovexattr
+#define SYS_getcwd __NR_getcwd
+#define SYS_lookup_dcookie __NR_lookup_dcookie
+#define SYS_eventfd2 __NR_eventfd2
+#define SYS_epoll_create1 __NR_epoll_create1
+#define SYS_epoll_ctl __NR_epoll_ctl
+#define SYS_epoll_pwait __NR_epoll_pwait
+#define SYS_dup __NR_dup
+#define SYS_dup3 __NR_dup3
+#define SYS_fcntl64 __NR_fcntl64
+#define SYS_inotify_init1 __NR_inotify_init1
+#define SYS_inotify_add_watch __NR_inotify_add_watch
+#define SYS_inotify_rm_watch __NR_inotify_rm_watch
+#define SYS_ioctl __NR_ioctl
+#define SYS_ioprio_set __NR_ioprio_set
+#define SYS_ioprio_get __NR_ioprio_get
+#define SYS_flock __NR_flock
+#define SYS_mknodat __NR_mknodat
+#define SYS_mkdirat __NR_mkdirat
+#define SYS_unlinkat __NR_unlinkat
+#define SYS_symlinkat __NR_symlinkat
+#define SYS_linkat __NR_linkat
+#define SYS_renameat __NR_renameat
+#define SYS_umount2 __NR_umount2
+#define SYS_mount __NR_mount
+#define SYS_pivot_root __NR_pivot_root
+#define SYS_nfsservctl __NR_nfsservctl
+#define SYS_statfs64 __NR_statfs64
+#define SYS_fstatfs64 __NR_fstatfs64
+#define SYS_truncate64 __NR_truncate64
+#define SYS_ftruncate64 __NR_ftruncate64
+#define SYS_fallocate __NR_fallocate
+#define SYS_faccessat __NR_faccessat
+#define SYS_chdir __NR_chdir
+#define SYS_fchdir __NR_fchdir
+#define SYS_chroot __NR_chroot
+#define SYS_fchmod __NR_fchmod
+#define SYS_fchmodat __NR_fchmodat
+#define SYS_fchownat __NR_fchownat
+#define SYS_fchown __NR_fchown
+#define SYS_openat __NR_openat
+#define SYS_close __NR_close
+#define SYS_vhangup __NR_vhangup
+#define SYS_pipe2 __NR_pipe2
+#define SYS_quotactl __NR_quotactl
+#define SYS_getdents64 __NR_getdents64
+#define SYS__llseek __NR__llseek
+#define SYS_read __NR_read
+#define SYS_write __NR_write
+#define SYS_readv __NR_readv
+#define SYS_writev __NR_writev
+#define SYS_pread64 __NR_pread64
+#define SYS_pwrite64 __NR_pwrite64
+#define SYS_preadv __NR_preadv
+#define SYS_pwritev __NR_pwritev
+#define SYS_sendfile64 __NR_sendfile64
+#define SYS_pselect6 __NR_pselect6
+#define SYS_ppoll __NR_ppoll
+#define SYS_signalfd4 __NR_signalfd4
+#define SYS_vmsplice __NR_vmsplice
+#define SYS_splice __NR_splice
+#define SYS_tee __NR_tee
+#define SYS_readlinkat __NR_readlinkat
+#define SYS_fstatat64 __NR_fstatat64
+#define SYS_fstat64 __NR_fstat64
+#define SYS_sync __NR_sync
+#define SYS_fsync __NR_fsync
+#define SYS_fdatasync __NR_fdatasync
+#define SYS_sync_file_range __NR_sync_file_range
+#define SYS_timerfd_create __NR_timerfd_create
+#define SYS_timerfd_settime __NR_timerfd_settime
+#define SYS_timerfd_gettime __NR_timerfd_gettime
+#define SYS_utimensat __NR_utimensat
+#define SYS_acct __NR_acct
+#define SYS_capget __NR_capget
+#define SYS_capset __NR_capset
+#define SYS_personality __NR_personality
+#define SYS_exit __NR_exit
+#define SYS_exit_group __NR_exit_group
+#define SYS_waitid __NR_waitid
+#define SYS_set_tid_address __NR_set_tid_address
+#define SYS_unshare __NR_unshare
+#define SYS_futex __NR_futex
+#define SYS_set_robust_list __NR_set_robust_list
+#define SYS_get_robust_list __NR_get_robust_list
+#define SYS_nanosleep __NR_nanosleep
+#define SYS_getitimer __NR_getitimer
+#define SYS_setitimer __NR_setitimer
+#define SYS_kexec_load __NR_kexec_load
+#define SYS_init_module __NR_init_module
+#define SYS_delete_module __NR_delete_module
+#define SYS_timer_create __NR_timer_create
+#define SYS_timer_gettime __NR_timer_gettime
+#define SYS_timer_getoverrun __NR_timer_getoverrun
+#define SYS_timer_settime __NR_timer_settime
+#define SYS_timer_delete __NR_timer_delete
+#define SYS_clock_settime __NR_clock_settime
+#define SYS_clock_gettime __NR_clock_gettime
+#define SYS_clock_getres __NR_clock_getres
+#define SYS_clock_nanosleep __NR_clock_nanosleep
+#define SYS_syslog __NR_syslog
+#define SYS_ptrace __NR_ptrace
+#define SYS_sched_setparam __NR_sched_setparam
+#define SYS_sched_setscheduler __NR_sched_setscheduler
+#define SYS_sched_getscheduler __NR_sched_getscheduler
+#define SYS_sched_getparam __NR_sched_getparam
+#define SYS_sched_setaffinity __NR_sched_setaffinity
+#define SYS_sched_getaffinity __NR_sched_getaffinity
+#define SYS_sched_yield __NR_sched_yield
+#define SYS_sched_get_priority_max __NR_sched_get_priority_max
+#define SYS_sched_get_priority_min __NR_sched_get_priority_min
+#define SYS_sched_rr_get_interval __NR_sched_rr_get_interval
+#define SYS_restart_syscall __NR_restart_syscall
+#define SYS_kill __NR_kill
+#define SYS_tkill __NR_tkill
+#define SYS_tgkill __NR_tgkill
+#define SYS_sigaltstack __NR_sigaltstack
+#define SYS_rt_sigsuspend __NR_rt_sigsuspend
+#define SYS_rt_sigaction __NR_rt_sigaction
+#define SYS_rt_sigprocmask __NR_rt_sigprocmask
+#define SYS_rt_sigpending __NR_rt_sigpending
+#define SYS_rt_sigtimedwait __NR_rt_sigtimedwait
+#define SYS_rt_sigqueueinfo __NR_rt_sigqueueinfo
+#define SYS_rt_sigreturn __NR_rt_sigreturn
+#define SYS_setpriority __NR_setpriority
+#define SYS_getpriority __NR_getpriority
+#define SYS_reboot __NR_reboot
+#define SYS_setregid __NR_setregid
+#define SYS_setgid __NR_setgid
+#define SYS_setreuid __NR_setreuid
+#define SYS_setuid __NR_setuid
+#define SYS_setresuid __NR_setresuid
+#define SYS_getresuid __NR_getresuid
+#define SYS_setresgid __NR_setresgid
+#define SYS_getresgid __NR_getresgid
+#define SYS_setfsuid __NR_setfsuid
+#define SYS_setfsgid __NR_setfsgid
+#define SYS_times __NR_times
+#define SYS_setpgid __NR_setpgid
+#define SYS_getpgid __NR_getpgid
+#define SYS_getsid __NR_getsid
+#define SYS_setsid __NR_setsid
+#define SYS_getgroups __NR_getgroups
+#define SYS_setgroups __NR_setgroups
+#define SYS_uname __NR_uname
+#define SYS_sethostname __NR_sethostname
+#define SYS_setdomainname __NR_setdomainname
+#define SYS_getrlimit __NR_getrlimit
+#define SYS_setrlimit __NR_setrlimit
+#define SYS_getrusage __NR_getrusage
+#define SYS_umask __NR_umask
+#define SYS_prctl __NR_prctl
+#define SYS_getcpu __NR_getcpu
+#define SYS_gettimeofday __NR_gettimeofday
+#define SYS_settimeofday __NR_settimeofday
+#define SYS_adjtimex __NR_adjtimex
+#define SYS_getpid __NR_getpid
+#define SYS_getppid __NR_getppid
+#define SYS_getuid __NR_getuid
+#define SYS_geteuid __NR_geteuid
+#define SYS_getgid __NR_getgid
+#define SYS_getegid __NR_getegid
+#define SYS_gettid __NR_gettid
+#define SYS_sysinfo __NR_sysinfo
+#define SYS_mq_open __NR_mq_open
+#define SYS_mq_unlink __NR_mq_unlink
+#define SYS_mq_timedsend __NR_mq_timedsend
+#define SYS_mq_timedreceive __NR_mq_timedreceive
+#define SYS_mq_notify __NR_mq_notify
+#define SYS_mq_getsetattr __NR_mq_getsetattr
+#define SYS_msgget __NR_msgget
+#define SYS_msgctl __NR_msgctl
+#define SYS_msgrcv __NR_msgrcv
+#define SYS_msgsnd __NR_msgsnd
+#define SYS_semget __NR_semget
+#define SYS_semctl __NR_semctl
+#define SYS_semtimedop __NR_semtimedop
+#define SYS_semop __NR_semop
+#define SYS_shmget __NR_shmget
+#define SYS_shmctl __NR_shmctl
+#define SYS_shmat __NR_shmat
+#define SYS_shmdt __NR_shmdt
+#define SYS_socket __NR_socket
+#define SYS_socketpair __NR_socketpair
+#define SYS_bind __NR_bind
+#define SYS_listen __NR_listen
+#define SYS_accept __NR_accept
+#define SYS_connect __NR_connect
+#define SYS_getsockname __NR_getsockname
+#define SYS_getpeername __NR_getpeername
+#define SYS_sendto __NR_sendto
+#define SYS_recvfrom __NR_recvfrom
+#define SYS_setsockopt __NR_setsockopt
+#define SYS_getsockopt __NR_getsockopt
+#define SYS_shutdown __NR_shutdown
+#define SYS_sendmsg __NR_sendmsg
+#define SYS_recvmsg __NR_recvmsg
+#define SYS_readahead __NR_readahead
+#define SYS_brk __NR_brk
+#define SYS_munmap __NR_munmap
+#define SYS_mremap __NR_mremap
+#define SYS_add_key __NR_add_key
+#define SYS_request_key __NR_request_key
+#define SYS_keyctl __NR_keyctl
+#define SYS_clone __NR_clone
+#define SYS_execve __NR_execve
+#define SYS_mmap2 __NR_mmap2
+#define SYS_fadvise64_64 __NR_fadvise64_64
+#define SYS_swapon __NR_swapon
+#define SYS_swapoff __NR_swapoff
+#define SYS_mprotect __NR_mprotect
+#define SYS_msync __NR_msync
+#define SYS_mlock __NR_mlock
+#define SYS_munlock __NR_munlock
+#define SYS_mlockall __NR_mlockall
+#define SYS_munlockall __NR_munlockall
+#define SYS_mincore __NR_mincore
+#define SYS_madvise __NR_madvise
+#define SYS_remap_file_pages __NR_remap_file_pages
+#define SYS_mbind __NR_mbind
+#define SYS_get_mempolicy __NR_get_mempolicy
+#define SYS_set_mempolicy __NR_set_mempolicy
+#define SYS_migrate_pages __NR_migrate_pages
+#define SYS_move_pages __NR_move_pages
+#define SYS_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
+#define SYS_perf_event_open __NR_perf_event_open
+#define SYS_accept4 __NR_accept4
+#define SYS_recvmmsg __NR_recvmmsg
+#define SYS_or1k_atomic __NR_or1k_atomic
+#define SYS_wait4 __NR_wait4
+#define SYS_prlimit64 __NR_prlimit64
+#define SYS_fanotify_init __NR_fanotify_init
+#define SYS_fanotify_mark __NR_fanotify_mark
+#define SYS_name_to_handle_at __NR_name_to_handle_at
+#define SYS_open_by_handle_at __NR_open_by_handle_at
+#define SYS_clock_adjtime __NR_clock_adjtime
+#define SYS_syncfs __NR_syncfs
+#define SYS_setns __NR_setns
+#define SYS_sendmmsg __NR_sendmmsg
+#define SYS_process_vm_readv __NR_process_vm_readv
+#define SYS_process_vm_writev __NR_process_vm_writev
+#define SYS_kcmp __NR_kcmp
+#define SYS_finit_module __NR_finit_module
diff --git a/arch/or1k/bits/termios.h b/arch/or1k/bits/termios.h
new file mode 100644
index 00000000..da266449
--- /dev/null
+++ b/arch/or1k/bits/termios.h
@@ -0,0 +1,159 @@
+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];
+	speed_t __c_ispeed;
+	speed_t __c_ospeed;
+};
+
+#define VINTR     0
+#define VQUIT     1
+#define VERASE    2
+#define VKILL     3
+#define VEOF      4
+#define VTIME     5
+#define VMIN      6
+#define VSWTC     7
+#define VSTART    8
+#define VSTOP     9
+#define VSUSP    10
+#define VEOL     11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE  14
+#define VLNEXT   15
+#define VEOL2    16
+
+#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 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 ECHO   0000010
+#define ECHOE  0000020
+#define ECHOK  0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define IEXTEN 0100000
+
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+
+#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 CRTSCTS  020000000000
+#define EXTPROC 0200000
+#define XTABS  0014000
+#endif
diff --git a/arch/or1k/bits/user.h b/arch/or1k/bits/user.h
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/arch/or1k/bits/user.h
diff --git a/arch/or1k/crt_arch.h b/arch/or1k/crt_arch.h
new file mode 100644
index 00000000..0f381d2d
--- /dev/null
+++ b/arch/or1k/crt_arch.h
@@ -0,0 +1,11 @@
+__asm__("\
+.global _start \n\
+.align  4 \n\
+_start: \n\
+	l.ori r3, r1, 0 \n\
+	l.addi r2, r0, -8 \n\
+	l.and r1, r1, r2 \n\
+	l.addi r1, r1, -8 \n\
+	l.jal __cstart \n\
+	 l.ori r2, r0, 0 \n\
+");
diff --git a/arch/or1k/pthread_arch.h b/arch/or1k/pthread_arch.h
new file mode 100644
index 00000000..e826997e
--- /dev/null
+++ b/arch/or1k/pthread_arch.h
@@ -0,0 +1,17 @@
+/* or1k use variant I, but with the twist that tp points to the end of TCB */
+static inline struct pthread *__pthread_self()
+{
+#ifdef __clang__
+	char *tp;
+	__asm__ __volatile__ ("l.ori %0, r10, 0" : "=r" (tp) );
+#else
+	register char *tp __asm__("r10");
+#endif
+	return (struct pthread *) (tp - sizeof(struct pthread));
+}
+
+#define TLS_ABOVE_TP
+#define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
+
+/* word-offset to 'pc' in mcontext_t */
+#define CANCEL_REG_IP 32
diff --git a/arch/or1k/reloc.h b/arch/or1k/reloc.h
new file mode 100644
index 00000000..830a800a
--- /dev/null
+++ b/arch/or1k/reloc.h
@@ -0,0 +1,47 @@
+#include <string.h>
+#include <elf.h>
+#include <endian.h>
+
+#define LDSO_ARCH "or1k"
+
+#define TPOFF_K 0
+
+static int remap_rel(int type)
+{
+	switch(type) {
+	case R_OR1K_32:
+		return REL_SYMBOLIC;
+	case R_OR1K_GLOB_DAT:
+		return REL_GOT;
+	case R_OR1K_JMP_SLOT:
+		return REL_PLT;
+	case R_OR1K_RELATIVE:
+		return REL_RELATIVE;
+	case R_OR1K_COPY:
+		return REL_COPY;
+	case R_OR1K_TLS_DTPMOD:
+		return REL_DTPMOD;
+	case R_OR1K_TLS_DTPOFF:
+		return REL_DTPOFF;
+	case R_OR1K_TLS_TPOFF:
+		return REL_TPOFF;
+	}
+	return 0;
+}
+
+#include "syscall.h"
+void __reloc_self(int c, size_t *a, size_t *dynv)
+{
+	char dot = '.', ex = 'x';
+	char *base;
+	size_t t[20], n;
+	for (a+=c+1; *a; a++);
+	for (a++; *a; a+=2) if (*a<20) t[*a] = a[1];
+	base = (char *)t[AT_BASE];
+	if (!base) base = (char *)(t[AT_PHDR] & -t[AT_PAGESZ]);
+	for (a=dynv; *a; a+=2) if (*a<20) t[*a] = a[1];
+	n = t[DT_RELASZ];
+	for (a=(void *)(base+t[DT_RELA]); n; a+=3, n-=12)
+		if (a[1]%256 == R_OR1K_RELATIVE)
+			*(size_t *)(base+a[0]) = (size_t)base + a[2];
+}
diff --git a/arch/or1k/syscall_arch.h b/arch/or1k/syscall_arch.h
new file mode 100644
index 00000000..aa1e623d
--- /dev/null
+++ b/arch/or1k/syscall_arch.h
@@ -0,0 +1,154 @@
+#define __SYSCALL_LL_E(x) \
+((union { long long ll; long l[2]; }){ .ll = x }).l[0], \
+((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+#define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+
+long (__syscall)(long, ...);
+
+#ifndef __clang__
+
+static __inline long __syscall0(long n)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11)
+			      : "memory", "r3", "r4", "r5", "r6", "r7", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall1(long n, long a)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3)
+			      : "memory", "r4", "r5", "r6", "r7", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	register unsigned long r4 __asm__("r4") = b;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3), "r"(r4)
+			      : "memory", "r5", "r6", "r7", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	register unsigned long r4 __asm__("r4") = b;
+	register unsigned long r5 __asm__("r5") = c;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3), "r"(r4), "r"(r5)
+			      : "memory", "r6", "r7", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	register unsigned long r4 __asm__("r4") = b;
+	register unsigned long r5 __asm__("r5") = c;
+	register unsigned long r6 __asm__("r6") = d;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3), "r"(r4), "r"(r5), "r"(r6)
+			      : "memory", "r7", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	register unsigned long r4 __asm__("r4") = b;
+	register unsigned long r5 __asm__("r5") = c;
+	register unsigned long r6 __asm__("r6") = d;
+	register unsigned long r7 __asm__("r7") = e;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3), "r"(r4), "r"(r5), "r"(r6),
+				"r"(r7)
+			      : "memory", "r8",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	register unsigned long r11 __asm__("r11") = n;
+	register unsigned long r3 __asm__("r3") = a;
+	register unsigned long r4 __asm__("r4") = b;
+	register unsigned long r5 __asm__("r5") = c;
+	register unsigned long r6 __asm__("r6") = d;
+	register unsigned long r7 __asm__("r7") = e;
+	register unsigned long r8 __asm__("r8") = f;
+	__asm__ __volatile__ ("l.sys 1"
+			      : "=r"(r11)
+			      : "r"(r11), "r"(r3), "r"(r4), "r"(r5), "r"(r6),
+				"r"(r7), "r"(r8)
+			      : "memory",
+				"r12", "r13", "r15", "r17", "r19", "r21",
+				"r23", "r25", "r27", "r29", "r31");
+	return r11;
+}
+
+#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)
+{
+	return (__syscall)(n, a, b);
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+	return (__syscall)(n, a, b, c);
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+	return (__syscall)(n, a, b, c, d);
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+	return (__syscall)(n, a, b, c, d, e);
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+	return (__syscall)(n, a, b, c, d, e, f);
+}
+
+#endif