summary refs log tree commit diff
diff options
context:
space:
mode:
-rw-r--r--arch/xtensa/kernel/asm-offsets.c5
-rw-r--r--arch/xtensa/kernel/entry.S228
-rw-r--r--arch/xtensa/kernel/process.c71
-rw-r--r--arch/xtensa/kernel/ptrace.c26
-rw-r--r--arch/xtensa/kernel/signal.c12
-rw-r--r--arch/xtensa/kernel/syscall.c95
-rw-r--r--arch/xtensa/kernel/syscalls.c288
-rw-r--r--arch/xtensa/kernel/syscalls.h247
-rw-r--r--include/asm-xtensa/fcntl.h98
-rw-r--r--include/asm-xtensa/posix_types.h2
-rw-r--r--include/asm-xtensa/shmbuf.h21
-rw-r--r--include/asm-xtensa/stat.h112
-rw-r--r--include/asm-xtensa/syscall.h20
-rw-r--r--include/asm-xtensa/unistd.h795
14 files changed, 1053 insertions, 967 deletions
diff --git a/arch/xtensa/kernel/asm-offsets.c b/arch/xtensa/kernel/asm-offsets.c
index 7cd1d7f8f608..b256cfbef344 100644
--- a/arch/xtensa/kernel/asm-offsets.c
+++ b/arch/xtensa/kernel/asm-offsets.c
@@ -87,6 +87,11 @@ int main(void)
 	DEFINE(MM_CONTEXT, offsetof (struct mm_struct, context));
 	BLANK();
 	DEFINE(PT_SINGLESTEP_BIT, PT_SINGLESTEP_BIT);
+
+	/* constants */
+	DEFINE(_CLONE_VM, CLONE_VM);
+	DEFINE(_CLONE_UNTRACED, CLONE_UNTRACED);
+
 	return 0;
 }
 
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index c0b56b17927f..9e271ba009bf 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1004,13 +1004,10 @@ ENTRY(fast_syscall_kernel)
 
 	rsr	a0, DEPC			# get syscall-nr
 	_beqz	a0, fast_syscall_spill_registers
-
-	addi	a0, a0, -__NR_sysxtensa
-	_beqz	a0, fast_syscall_sysxtensa
+	_beqi	a0, __NR_xtensa, fast_syscall_xtensa
 
 	j	kernel_exception
 
-
 ENTRY(fast_syscall_user)
 
 	/* Skip syscall. */
@@ -1024,9 +1021,7 @@ ENTRY(fast_syscall_user)
 
 	rsr	a0, DEPC			# get syscall-nr
 	_beqz	a0, fast_syscall_spill_registers
-
-	addi	a0, a0, -__NR_sysxtensa
-	_beqz	a0, fast_syscall_sysxtensa
+	_beqi	a0, __NR_xtensa, fast_syscall_xtensa
 
 	j	user_exception
 
@@ -1047,18 +1042,19 @@ ENTRY(fast_syscall_unrecoverable)
 /*
  * sysxtensa syscall handler
  *
- * int sysxtensa (XTENSA_ATOMIC_SET, ptr, val, unused);
- * int sysxtensa (XTENSA_ATOMIC_ADD, ptr, val, unused);
- * int sysxtensa (XTENSA_ATOMIC_EXG_ADD, ptr, val, unused);
- * int sysxtensa (XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
- * a2                    a6              a3    a4      a5
+ * int sysxtensa (SYS_XTENSA_ATOMIC_SET,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_ADD,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
+ *        a2            a6                   a3    a4      a5
  *
  * Entry condition:
  *
- *   a0:	trashed, original value saved on stack (PT_AREG0)
+ *   a0:	a2 (syscall-nr), original value saved on stack (PT_AREG0)
  *   a1:	a1
- *   a2:	new stack pointer, original in DEPC
- *   a3:	dispatch table
+ *   a2:	new stack pointer, original in a0 and DEPC
+ *   a3:	dispatch table, original in excsave_1
+ *   a4..a15:	unchanged
  *   depc:	a2, original value saved on stack (PT_DEPC)
  *   excsave_1:	a3
  *
@@ -1091,59 +1087,62 @@ ENTRY(fast_syscall_unrecoverable)
 #define CATCH								\
 67:
 
-ENTRY(fast_syscall_sysxtensa)
-
-	_beqz	a6, 1f
-	_blti	a6, SYSXTENSA_COUNT, 2f
+ENTRY(fast_syscall_xtensa)
 
-1:	j	user_exception
-
-2:	xsr	a3, EXCSAVE_1		# restore a3, excsave1
-	s32i	a7, a2, PT_AREG7
+	xsr	a3, EXCSAVE_1		# restore a3, excsave1
 
+	s32i	a7, a2, PT_AREG7	# we need an additional register
 	movi	a7, 4			# sizeof(unsigned int)
-	access_ok a0, a3, a7, a2, .Leac
+	access_ok a3, a7, a0, a2, .Leac	# a0: scratch reg, a2: sp
 
-	_beqi	a6, SYSXTENSA_ATOMIC_SET, .Lset
-	_beqi	a6, SYSXTENSA_ATOMIC_EXG_ADD, .Lexg
-	_beqi	a6, SYSXTENSA_ATOMIC_ADD, .Ladd
+	addi	a6, a6, -1		# assuming SYS_XTENSA_ATOMIC_SET = 1
+	_bgeui	a6, SYS_XTENSA_COUNT - 1, .Lill
+	_bnei	a6, SYS_XTENSA_ATOMIC_CMP_SWP - 1, .Lnswp
 
-	/* Fall through for SYSXTENSA_ATOMIC_CMP_SWP */
+	/* Fall through for ATOMIC_CMP_SWP. */
 
 .Lswp:	/* Atomic compare and swap */
 
-TRY	l32i	a7, a3, 0		# read old value
-	bne	a7, a4, 1f		# same as old value? jump
-	s32i	a5, a3, 0		# different, modify value
-	movi	a7, 1			# and return 1
-	j	.Lret
-
-1:	movi	a7, 0			# same values: return 0
-	j	.Lret
-
-.Ladd:	/* Atomic add */
-.Lexg:	/* Atomic (exchange) add */
+TRY	l32i	a0, a3, 0		# read old value
+	bne	a0, a4, 1f		# same as old value? jump
+TRY	s32i	a5, a3, 0		# different, modify value
+	l32i	a7, a2, PT_AREG7	# restore a7
+	l32i	a0, a2, PT_AREG0	# restore a0
+	movi	a2, 1			# and return 1
+	addi	a6, a6, 1		# restore a6 (really necessary?)
+	rfe
 
-TRY	l32i	a7, a3, 0
-	add	a4, a4, a7
-	s32i	a4, a3, 0
-	j	.Lret
+1:	l32i	a7, a2, PT_AREG7	# restore a7
+	l32i	a0, a2, PT_AREG0	# restore a0
+	movi	a2, 0			# return 0 (note that we cannot set
+	addi	a6, a6, 1		# restore a6 (really necessary?)
+	rfe
 
-.Lset:	/* Atomic set */
+.Lnswp:	/* Atomic set, add, and exg_add. */
 
-TRY	l32i	a7, a3, 0		# read old value as return value
-	s32i	a4, a3, 0		# write new value
+TRY	l32i	a7, a3, 0		# orig
+	add	a0, a4, a7		# + arg
+	moveqz	a0, a4, a6		# set
+TRY	s32i	a0, a3, 0		# write new value
 
-.Lret:	mov	a0, a2
+	mov	a0, a2
 	mov	a2, a7
-	l32i	a7, a0, PT_AREG7
-	l32i	a3, a0, PT_AREG3
-	l32i	a0, a0, PT_AREG0
+	l32i	a7, a0, PT_AREG7	# restore a7
+	l32i	a0, a0, PT_AREG0	# restore a0
+	addi	a6, a6, 1		# restore a6 (really necessary?)
 	rfe
 
 CATCH
-.Leac:	movi	a7, -EFAULT
-	j	.Lret
+.Leac:	l32i	a7, a2, PT_AREG7	# restore a7
+	l32i	a0, a2, PT_AREG0	# restore a0
+	movi	a2, -EFAULT
+	rfe
+
+.Lill:	l32i	a7, a2, PT_AREG0	# restore a7
+	l32i	a0, a2, PT_AREG0	# restore a0
+	movi	a2, -EINVAL
+	rfe
+
 
 
 
@@ -1907,6 +1906,103 @@ ENTRY(fast_coprocessor)
 #endif /* XCHAL_EXTRA_SA_SIZE */
 
 /*
+ * System Calls.
+ *
+ * void system_call (struct pt_regs* regs, int exccause)
+ *                            a2                 a3
+ */
+
+ENTRY(system_call)
+	entry	a1, 32
+
+	/* regs->syscall = regs->areg[2] */
+
+	l32i	a3, a2, PT_AREG2
+	mov	a6, a2
+	movi	a4, do_syscall_trace_enter
+	s32i	a3, a2, PT_SYSCALL
+	callx4	a4
+
+	/* syscall = sys_call_table[syscall_nr] */
+
+	movi	a4, sys_call_table;
+	movi	a5, __NR_syscall_count
+	movi	a6, -ENOSYS
+	bgeu	a3, a5, 1f
+
+	addx4	a4, a3, a4
+	l32i	a4, a4, 0
+	movi	a5, sys_ni_syscall;
+	beq	a4, a5, 1f
+
+	/* Load args: arg0 - arg5 are passed via regs. */
+
+	l32i	a6, a2, PT_AREG6
+	l32i	a7, a2, PT_AREG3
+	l32i	a8, a2, PT_AREG4
+	l32i	a9, a2, PT_AREG5
+	l32i	a10, a2, PT_AREG8
+	l32i	a11, a2, PT_AREG9
+
+	/* Pass one additional argument to the syscall: pt_regs (on stack) */
+	s32i	a2, a1, 0
+
+	callx4	a4
+
+1:	/* regs->areg[2] = return_value */
+
+	s32i	a6, a2, PT_AREG2
+	movi	a4, do_syscall_trace_leave
+	mov	a6, a2
+	callx4	a4
+	retw
+
+
+/*
+ * Create a kernel thread
+ *
+ * int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags)
+ * a2                    a2                 a3             a4
+ */
+
+ENTRY(kernel_thread)
+	entry	a1, 16
+
+	mov	a5, a2			# preserve fn over syscall
+	mov	a7, a3			# preserve args over syscall
+
+	movi	a3, _CLONE_VM | _CLONE_UNTRACED
+	movi	a2, __NR_clone
+	or	a6, a4, a3		# arg0: flags
+	mov	a3, a1			# arg1: sp
+	syscall
+
+	beq	a3, a1, 1f		# branch if parent
+	mov	a6, a7			# args
+	callx4	a5			# fn(args)
+
+	movi	a2, __NR_exit
+	syscall				# return value of fn(args) still in a6
+
+1:	retw
+
+/*
+ * Do a system call from kernel instead of calling sys_execve, so we end up
+ * with proper pt_regs.
+ *
+ * int kernel_execve(const char *fname, char *const argv[], charg *const envp[])
+ * a2                        a2               a3                  a4
+ */
+
+ENTRY(kernel_execve)
+	entry	a1, 16
+	mov	a6, a2			# arg0 is in a6
+	movi	a2, __NR_execve
+	syscall
+
+	retw
+
+/*
  * Task switch.
  *
  * struct task*  _switch_to (struct task* prev, struct task* next)
@@ -1964,33 +2060,9 @@ ENTRY(ret_from_fork)
 	movi	a4, schedule_tail
 	callx4	a4
 
-	movi	a4, do_syscall_trace
+	movi	a4, do_syscall_trace_leave
+	mov	a6, a1
 	callx4	a4
 
 	j	common_exception_return
 
-
-
-/*
- * Table of syscalls
- */
-
-.data
-.align  4
-.global sys_call_table
-sys_call_table:
-
-#define SYSCALL(call, narg) .word call
-#include "syscalls.h"
-
-/*
- * Number of arguments of each syscall
- */
-
-.global sys_narg_table
-sys_narg_table:
-
-#undef SYSCALL
-#define SYSCALL(call, narg) .byte narg
-#include "syscalls.h"
-
diff --git a/arch/xtensa/kernel/process.c b/arch/xtensa/kernel/process.c
index 3785f3481d71..795bd5ac6f4c 100644
--- a/arch/xtensa/kernel/process.c
+++ b/arch/xtensa/kernel/process.c
@@ -161,36 +161,6 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
 
 
 /*
- * Create a kernel thread
- */
-
-int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
-{
-	long retval;
-	__asm__ __volatile__
-		("mov           a5, %4\n\t" /* preserve fn in a5 */
-		 "mov           a6, %3\n\t" /* preserve and setup arg in a6 */
-		 "movi		a2, %1\n\t" /* load __NR_clone for syscall*/
-		 "mov		a3, sp\n\t" /* sp check and sys_clone */
-		 "mov		a4, %5\n\t" /* load flags for syscall */
-		 "syscall\n\t"
-		 "beq		a3, sp, 1f\n\t" /* branch if parent */
-		 "callx4	a5\n\t"     /* call fn */
-		 "movi		a2, %2\n\t" /* load __NR_exit for syscall */
-		 "mov		a3, a6\n\t" /* load fn return value */
-		 "syscall\n"
-		 "1:\n\t"
-		 "mov		%0, a2\n\t" /* parent returns zero */
-		 :"=r" (retval)
-		 :"i" (__NR_clone), "i" (__NR_exit),
-		 "r" (arg), "r" (fn),
-		 "r" (flags | CLONE_VM)
-		 : "a2", "a3", "a4", "a5", "a6" );
-	return retval;
-}
-
-
-/*
  * These bracket the sleeping functions..
  */
 
@@ -452,3 +422,44 @@ int  dump_fpu(struct pt_regs *regs, elf_fpregset_t *r)
 {
 	return dump_task_fpu(regs, current, r);
 }
+
+asmlinkage
+long xtensa_clone(unsigned long clone_flags, unsigned long newsp,
+                  void __user *parent_tid, void *child_tls,
+                  void __user *child_tid, long a5,
+                  struct pt_regs *regs)
+{
+        if (!newsp)
+                newsp = regs->areg[1];
+        return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
+}
+
+/*
+ *  * xtensa_execve() executes a new program.
+ *   */
+
+asmlinkage
+long xtensa_execve(char __user *name, char __user * __user *argv,
+                   char __user * __user *envp,
+                   long a3, long a4, long a5,
+                   struct pt_regs *regs)
+{
+	long error;
+	char * filename;
+
+	filename = getname(name);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+	// FIXME: release coprocessor??
+	error = do_execve(filename, argv, envp, regs);
+	if (error == 0) {
+		task_lock(current);
+		current->ptrace &= ~PT_DTRACE;
+		task_unlock(current);
+	}
+	putname(filename);
+out:
+	return error;
+}
+
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
index 604c3c3c6759..8b6d3d0623b6 100644
--- a/arch/xtensa/kernel/ptrace.c
+++ b/arch/xtensa/kernel/ptrace.c
@@ -332,12 +332,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
 void do_syscall_trace(void)
 {
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
-
-	if (!(current->ptrace & PT_PTRACED))
-		return;
-
 	/*
 	 * The 0x80 provides a way for the tracing parent to distinguish
 	 * between a syscall stop and SIGTRAP delivery
@@ -354,3 +348,23 @@ void do_syscall_trace(void)
 		current->exit_code = 0;
 	}
 }
+
+void do_syscall_trace_enter(struct pt_regs *regs)
+{
+	if (test_thread_flag(TIF_SYSCALL_TRACE)
+			&& (current->ptrace & PT_PTRACED))
+		do_syscall_trace();
+
+#if 0
+	if (unlikely(current->audit_context))
+		audit_syscall_entry(current, AUDIT_ARCH_XTENSA..);
+#endif
+}
+
+void do_syscall_trace_leave(struct pt_regs *regs)
+{
+	if ((test_thread_flag(TIF_SYSCALL_TRACE))
+			&& (current->ptrace & PT_PTRACED))
+		do_syscall_trace();
+}
+
diff --git a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
index 6af7f4145990..c6d9880a4cdb 100644
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -46,7 +46,7 @@ extern struct task_struct *coproc_owners[];
  * Atomically swap in the new signal mask, and wait for a signal.
  */
 
-int sys_sigsuspend(struct pt_regs *regs)
+int xtensa_sigsuspend(struct pt_regs *regs)
 {
 	old_sigset_t mask = (old_sigset_t) regs->areg[3];
 	sigset_t saveset;
@@ -68,7 +68,7 @@ int sys_sigsuspend(struct pt_regs *regs)
 }
 
 asmlinkage int
-sys_rt_sigsuspend(struct pt_regs *regs)
+xtensa_rt_sigsuspend(struct pt_regs *regs)
 {
 	sigset_t *unewset = (sigset_t *) regs->areg[4];
 	size_t sigsetsize = (size_t) regs->areg[3];
@@ -96,7 +96,7 @@ sys_rt_sigsuspend(struct pt_regs *regs)
 }
 
 asmlinkage int
-sys_sigaction(int sig, const struct old_sigaction *act,
+xtensa_sigaction(int sig, const struct old_sigaction *act,
 	      struct old_sigaction *oact)
 {
 	struct k_sigaction new_ka, old_ka;
@@ -128,7 +128,7 @@ sys_sigaction(int sig, const struct old_sigaction *act,
 }
 
 asmlinkage int
-sys_sigaltstack(struct pt_regs *regs)
+xtensa_sigaltstack(struct pt_regs *regs)
 {
 	const stack_t *uss = (stack_t *) regs->areg[4];
 	stack_t *uoss = (stack_t *) regs->areg[3];
@@ -350,7 +350,7 @@ setup_sigcontext(struct sigcontext *sc, struct _cpstate *cpstate,
 	return err;
 }
 
-asmlinkage int sys_sigreturn(struct pt_regs *regs)
+asmlinkage int xtensa_sigreturn(struct pt_regs *regs)
 {
 	struct sigframe *frame = (struct sigframe *)regs->areg[1];
 	sigset_t set;
@@ -382,7 +382,7 @@ badframe:
 	return 0;
 }
 
-asmlinkage int sys_rt_sigreturn(struct pt_regs *regs)
+asmlinkage int xtensa_rt_sigreturn(struct pt_regs *regs)
 {
 	struct rt_sigframe *frame = (struct rt_sigframe *)regs->areg[1];
 	sigset_t set;
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
new file mode 100644
index 000000000000..418268f49766
--- /dev/null
+++ b/arch/xtensa/kernel/syscall.c
@@ -0,0 +1,95 @@
+/*
+ * arch/xtensa/kernel/syscall.c
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ * Copyright (C) 2000 Silicon Graphics, Inc.
+ * Copyright (C) 1995 - 2000 by Ralf Baechle
+ *
+ * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
+ * Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca>
+ * Chris Zankel <chris@zankel.net>
+ * Kevin Chea
+ *
+ */
+#include <asm/uaccess.h>
+#include <asm/syscalls.h>
+#include <asm/unistd.h>
+#include <linux/linkage.h>
+#include <linux/stringify.h>
+#include <linux/errno.h>
+#include <linux/syscalls.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/mman.h>
+#include <linux/shm.h>
+
+typedef void (*syscall_t)(void);
+
+syscall_t sys_call_table[__NR_syscall_count] /* FIXME __cacheline_aligned */= {
+	[0 ... __NR_syscall_count - 1] = (syscall_t)&sys_ni_syscall,
+
+#undef __SYSCALL
+#define __SYSCALL(nr,symbol,nargs) [ nr ] = (syscall_t)symbol,
+#undef _XTENSA_UNISTD_H
+#undef  __KERNEL_SYSCALLS__
+#include <asm/unistd.h>
+};
+
+/*
+ * xtensa_pipe() is the normal C calling standard for creating a pipe. It's not
+ * the way unix traditional does this, though.
+ */
+
+asmlinkage long xtensa_pipe(int __user *userfds)
+{
+	int fd[2];
+	int error;
+
+	error = do_pipe(fd);
+	if (!error) {
+		if (copy_to_user(userfds, fd, 2 * sizeof(int)))
+			error = -EFAULT;
+	}
+	return error;
+}
+
+
+asmlinkage long xtensa_mmap2(unsigned long addr, unsigned long len,
+   			     unsigned long prot, unsigned long flags,
+			     unsigned long fd, unsigned long pgoff)
+{
+	int error = -EBADF;
+	struct file * file = NULL;
+
+	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+	if (!(flags & MAP_ANONYMOUS)) {
+		file = fget(fd);
+		if (!file)
+			goto out;
+	}
+
+	down_write(&current->mm->mmap_sem);
+	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
+	up_write(&current->mm->mmap_sem);
+
+	if (file)
+		fput(file);
+out:
+	return error;
+}
+
+asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
+{
+	unsigned long ret;
+	long err;
+
+	err = do_shmat(shmid, shmaddr, shmflg, &ret);
+	if (err)
+		return err;
+	return (long)ret;
+}
+
diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
deleted file mode 100644
index f9a5a752ca69..000000000000
--- a/arch/xtensa/kernel/syscalls.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * arch/xtensa/kernel/syscalls.c
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- * Copyright (C) 2000 Silicon Graphics, Inc.
- * Copyright (C) 1995 - 2000 by Ralf Baechle
- *
- * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com>
- * Marc Gauthier <marc@tensilica.com, marc@alumni.uwaterloo.ca>
- * Chris Zankel <chris@zankel.net>
- * Kevin Chea
- *
- */
-
-#define DEBUG	0
-
-#include <linux/linkage.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/smp_lock.h>
-#include <linux/mman.h>
-#include <linux/sched.h>
-#include <linux/file.h>
-#include <linux/slab.h>
-#include <linux/utsname.h>
-#include <linux/unistd.h>
-#include <linux/stringify.h>
-#include <linux/syscalls.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-#include <asm/signal.h>
-#include <asm/uaccess.h>
-#include <asm/hardirq.h>
-#include <asm/mman.h>
-#include <asm/shmparam.h>
-#include <asm/page.h>
-
-extern void do_syscall_trace(void);
-typedef int (*syscall_t)(void *a0,...);
-extern syscall_t sys_call_table[];
-extern unsigned char sys_narg_table[];
-
-/*
- * sys_pipe() is the normal C calling standard for creating a pipe. It's not
- * the way unix traditional does this, though.
- */
-
-int sys_pipe(int __user *userfds)
-{
-	int fd[2];
-	int error;
-
-	error = do_pipe(fd);
-	if (!error) {
-		if (copy_to_user(userfds, fd, 2 * sizeof(int)))
-			error = -EFAULT;
-	}
-	return error;
-}
-
-/*
- * Common code for old and new mmaps.
- */
-long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot,
-	      unsigned long flags, unsigned long fd, unsigned long pgoff)
-{
-	int error = -EBADF;
-	struct file * file = NULL;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return error;
-}
-
-int sys_clone(struct pt_regs *regs)
-{
-	unsigned long clone_flags;
-	unsigned long newsp;
-	int __user *parent_tidptr, *child_tidptr;
-	clone_flags = regs->areg[4];
-	newsp = regs->areg[3];
-	parent_tidptr = (int __user *)regs->areg[5];
-	child_tidptr = (int __user *)regs->areg[6];
-	if (!newsp)
-		newsp = regs->areg[1];
-	return do_fork(clone_flags,newsp,regs,0,parent_tidptr,child_tidptr);
-}
-
-/*
- * sys_execve() executes a new program.
- */
-
-int sys_execve(struct pt_regs *regs)
-{
-	int error;
-	char * filename;
-
-	filename = getname((char *) (long)regs->areg[5]);
-	error = PTR_ERR(filename);
-	if (IS_ERR(filename))
-		goto out;
-	error = do_execve(filename, (char **) (long)regs->areg[3],
-	                  (char **) (long)regs->areg[4], regs);
-	putname(filename);
-
-out:
-	return error;
-}
-
-int sys_uname(struct old_utsname * name)
-{
-	if (name && !copy_to_user(name, utsname(), sizeof (*name)))
-		return 0;
-	return -EFAULT;
-}
-
-/*
- * Build the string table for the builtin "poor man's strace".
- */
-
-#if DEBUG
-#define SYSCALL(fun, narg) #fun,
-static char *sfnames[] = {
-#include "syscalls.h"
-};
-#undef SYS
-#endif
-
-void system_call (struct pt_regs *regs)
-{
-	syscall_t syscall;
-	unsigned long parm0, parm1, parm2, parm3, parm4, parm5;
-	int nargs, res;
-	unsigned int syscallnr;
-	int ps;
-
-#if DEBUG
-	int i;
-	unsigned long parms[6];
-	char *sysname;
-#endif
-
-	regs->syscall = regs->areg[2];
-
-	do_syscall_trace();
-
-	/* Have to load after syscall_trace because strace
-	 * sometimes changes regs->syscall.
-	 */
-	syscallnr = regs->syscall;
-
-	parm0 = parm1 = parm2 = parm3 = parm4 = parm5 = 0;
-
-	/* Restore interrupt level to syscall invoker's.
-	 * If this were in assembly, we wouldn't disable
-	 * interrupts in the first place:
-	 */
-	local_save_flags (ps);
-	local_irq_restore((ps & ~PS_INTLEVEL_MASK) |
-			  (regs->ps & PS_INTLEVEL_MASK) );
-
-	if (syscallnr > __NR_Linux_syscalls) {
-		regs->areg[2] = -ENOSYS;
-		return;
-	}
-
-	syscall = sys_call_table[syscallnr];
-	nargs = sys_narg_table[syscallnr];
-
-	if (syscall == NULL) {
-		regs->areg[2] = -ENOSYS;
-		return;
-	}
-
-	/* There shouldn't be more than six arguments in the table! */
-
-	if (nargs > 6)
-		panic("Internal error - too many syscall arguments (%d)!\n",
-		      nargs);
-
-	/* Linux takes system-call arguments in registers.  The ABI
-         * and Xtensa software conventions require the system-call
-         * number in a2.  If an argument exists in a2, we move it to
-         * the next available register.  Note that for improved
-         * efficiency, we do NOT shift all parameters down one
-         * register to maintain the original order.
-	 *
-         * At best case (zero arguments), we just write the syscall
-         * number to a2.  At worst case (1 to 6 arguments), we move
-         * the argument in a2 to the next available register, then
-         * write the syscall number to a2.
-	 *
-         * For clarity, the following truth table enumerates all
-         * possibilities.
-	 *
-         * arguments	syscall number	arg0, arg1, arg2, arg3, arg4, arg5
-         * ---------	--------------	----------------------------------
-	 *	0	      a2
-	 *	1	      a2	a3
-	 *	2	      a2	a4,   a3
-	 *	3	      a2	a5,   a3,   a4
-	 *	4	      a2	a6,   a3,   a4,   a5
-	 *	5	      a2	a7,   a3,   a4,   a5,   a6
-	 *	6	      a2	a8,   a3,   a4,   a5,   a6,   a7
-	 */
-	if (nargs) {
-		parm0 = regs->areg[nargs+2];
-		parm1 = regs->areg[3];
-		parm2 = regs->areg[4];
-		parm3 = regs->areg[5];
-		parm4 = regs->areg[6];
-		parm5 = regs->areg[7];
-	} else /* nargs == 0 */
-		parm0 = (unsigned long) regs;
-
-#if DEBUG
-	parms[0] = parm0;
-	parms[1] = parm1;
-	parms[2] = parm2;
-	parms[3] = parm3;
-	parms[4] = parm4;
-	parms[5] = parm5;
-
-	sysname = sfnames[syscallnr];
-	if (strncmp(sysname, "sys_", 4) == 0)
-		sysname = sysname + 4;
-
-	printk("\017SYSCALL:I:%x:%d:%s  %s(", regs->pc, current->pid,
-	       current->comm, sysname);
-	for (i = 0; i < nargs; i++)
-		printk((i>0) ? ", %#lx" : "%#lx", parms[i]);
-	printk(")\n");
-#endif
-
-	res = syscall((void *)parm0, parm1, parm2, parm3, parm4, parm5);
-
-#if DEBUG
-	printk("\017SYSCALL:O:%d:%s  %s(",current->pid, current->comm, sysname);
-	for (i = 0; i < nargs; i++)
-		printk((i>0) ? ", %#lx" : "%#lx", parms[i]);
-	if (res < 4096)
-		printk(") = %d\n", res);
-	else
-		printk(") = %#x\n", res);
-#endif /* DEBUG */
-
-	regs->areg[2] = res;
-	do_syscall_trace();
-}
-
-/*
- * Do a system call from kernel instead of calling sys_execve so we
- * end up with proper pt_regs.
- */
-int kernel_execve(const char *filename, char *const argv[], char *const envp[])
-{
-	long __res;
-	asm volatile (
-		"  mov   a5, %2 \n"
-		"  mov   a4, %4 \n"
-		"  mov   a3, %3 \n"
-		"  movi  a2, %1 \n"
-		"  syscall      \n"
-		"  mov   %0, a2 \n"
-		: "=a" (__res)
-		: "i" (__NR_execve), "a" (filename), "a" (argv), "a" (envp)
-		: "a2", "a3", "a4", "a5");
-	return __res;
-}
diff --git a/arch/xtensa/kernel/syscalls.h b/arch/xtensa/kernel/syscalls.h
deleted file mode 100644
index 216c10a31501..000000000000
--- a/arch/xtensa/kernel/syscalls.h
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * arch/xtensa/kernel/syscalls.h
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1995, 1996, 1997, 1998 by Ralf Baechle
- * Copyright (C) 2001 - 2005 Tensilica Inc.
- *
- * Changes by Joe Taylor <joe@tensilica.com>
- */
-
-/*
- * This file is being included twice - once to build a list of all
- * syscalls and once to build a table of how many arguments each syscall
- * accepts.  Syscalls that receive a pointer to the saved registers are
- * marked as having zero arguments.
- *
- * The binary compatibility calls are in a separate list.
- *
- * Entry '0' used to be system_call.  It's removed to disable indirect
- * system calls for now so user tasks can't recurse.  See mips'
- * sys_syscall for a comparable example.
- */
-
-SYSCALL(0, 0)		                /* 00 */
-SYSCALL(sys_exit, 1)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_read, 3)
-SYSCALL(sys_write, 3)
-SYSCALL(sys_open, 3)			/* 05 */
-SYSCALL(sys_close, 1)
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_creat, 2)
-SYSCALL(sys_link, 2)
-SYSCALL(sys_unlink, 1)			/* 10 */
-SYSCALL(sys_execve, 0)
-SYSCALL(sys_chdir, 1)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_mknod, 3)
-SYSCALL(sys_chmod, 2)			/* 15 */
-SYSCALL(sys_lchown, 3)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_newstat, 2)
-SYSCALL(sys_lseek, 3)
-SYSCALL(sys_getpid, 0)			/* 20 */
-SYSCALL(sys_mount, 5)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_setuid, 1)
-SYSCALL(sys_getuid, 0)
-SYSCALL(sys_ni_syscall, 1)		/* 25 */
-SYSCALL(sys_ptrace, 4)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_newfstat, 2)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_utime, 2)			/* 30 */
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_access, 2)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_ni_syscall, 0)		/* 35 */
-SYSCALL(sys_sync, 0)
-SYSCALL(sys_kill, 2)
-SYSCALL(sys_rename, 2)
-SYSCALL(sys_mkdir, 2)
-SYSCALL(sys_rmdir, 1)			/* 40 */
-SYSCALL(sys_dup, 1)
-SYSCALL(sys_pipe, 1)
-SYSCALL(sys_times, 1)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_brk, 1)			/* 45 */
-SYSCALL(sys_setgid, 1)
-SYSCALL(sys_getgid, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_geteuid, 0)
-SYSCALL(sys_getegid, 0)			/* 50 */
-SYSCALL(sys_acct, 1)
-SYSCALL(sys_umount, 2)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ioctl, 3)
-SYSCALL(sys_fcntl, 3)			/* 55 */
-SYSCALL(sys_ni_syscall, 2)
-SYSCALL(sys_setpgid, 2)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_umask, 1)			/* 60 */
-SYSCALL(sys_chroot, 1)
-SYSCALL(sys_ustat, 2)
-SYSCALL(sys_dup2, 2)
-SYSCALL(sys_getppid, 0)
-SYSCALL(sys_ni_syscall, 0)		/* 65 */
-SYSCALL(sys_setsid, 0)
-SYSCALL(sys_sigaction, 3)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_setreuid, 2)		/* 70 */
-SYSCALL(sys_setregid, 2)
-SYSCALL(sys_sigsuspend, 0)
-SYSCALL(sys_ni_syscall, 1)
-SYSCALL(sys_sethostname, 2)
-SYSCALL(sys_setrlimit, 2)		/* 75 */
-SYSCALL(sys_getrlimit, 2)
-SYSCALL(sys_getrusage, 2)
-SYSCALL(sys_gettimeofday, 2)
-SYSCALL(sys_settimeofday, 2)
-SYSCALL(sys_getgroups, 2)		/* 80 */
-SYSCALL(sys_setgroups, 2)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_symlink, 2)
-SYSCALL(sys_newlstat, 2)
-SYSCALL(sys_readlink, 3)		/* 85 */
-SYSCALL(sys_uselib, 1)
-SYSCALL(sys_swapon, 2)
-SYSCALL(sys_reboot, 3)
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_ni_syscall, 6)		/* 90 */
-SYSCALL(sys_munmap, 2)
-SYSCALL(sys_truncate, 2)
-SYSCALL(sys_ftruncate, 2)
-SYSCALL(sys_fchmod, 2)
-SYSCALL(sys_fchown, 3)			/* 95 */
-SYSCALL(sys_getpriority, 2)
-SYSCALL(sys_setpriority, 3)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_statfs, 2)
-SYSCALL(sys_fstatfs, 2)			/* 100 */
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_ni_syscall, 2)
-SYSCALL(sys_syslog, 3)
-SYSCALL(sys_setitimer, 3)
-SYSCALL(sys_getitimer, 2)		/* 105 */
-SYSCALL(sys_newstat, 2)
-SYSCALL(sys_newlstat, 2)
-SYSCALL(sys_newfstat, 2)
-SYSCALL(sys_uname, 1)
-SYSCALL(sys_ni_syscall, 0)		/* 110 */
-SYSCALL(sys_vhangup, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_wait4, 4)
-SYSCALL(sys_swapoff, 1)			/* 115 */
-SYSCALL(sys_sysinfo, 1)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_fsync, 1)
-SYSCALL(sys_sigreturn, 0)
-SYSCALL(sys_clone, 0)			/* 120 */
-SYSCALL(sys_setdomainname, 2)
-SYSCALL(sys_newuname, 1)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_adjtimex, 1)
-SYSCALL(sys_mprotect, 3)		/* 125 */
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_ni_syscall, 2)
-SYSCALL(sys_init_module, 2)
-SYSCALL(sys_delete_module, 1)
-SYSCALL(sys_ni_syscall, 1)		/* 130 */
-SYSCALL(sys_quotactl, 0)
-SYSCALL(sys_getpgid, 1)
-SYSCALL(sys_fchdir, 1)
-SYSCALL(sys_bdflush, 2)
-SYSCALL(sys_sysfs, 3)			/* 135 */
-SYSCALL(sys_personality, 1)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_setfsuid, 1)
-SYSCALL(sys_setfsgid, 1)
-SYSCALL(sys_llseek, 5)			/* 140 */
-SYSCALL(sys_getdents, 3)
-SYSCALL(sys_select, 5)
-SYSCALL(sys_flock, 2)
-SYSCALL(sys_msync, 3)
-SYSCALL(sys_readv, 3)			/* 145 */
-SYSCALL(sys_writev, 3)
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_ni_syscall, 3)
-SYSCALL(sys_ni_syscall, 4)		/* handled in fast syscall handler. */
-SYSCALL(sys_ni_syscall, 0)		/* 150 */
-SYSCALL(sys_getsid, 1)
-SYSCALL(sys_fdatasync, 1)
-SYSCALL(sys_sysctl, 1)
-SYSCALL(sys_mlock, 2)
-SYSCALL(sys_munlock, 2)			/* 155 */
-SYSCALL(sys_mlockall, 1)
-SYSCALL(sys_munlockall, 0)
-SYSCALL(sys_sched_setparam,2)
-SYSCALL(sys_sched_getparam,2)
-SYSCALL(sys_sched_setscheduler,3)	/* 160 */
-SYSCALL(sys_sched_getscheduler,1)
-SYSCALL(sys_sched_yield,0)
-SYSCALL(sys_sched_get_priority_max,1)
-SYSCALL(sys_sched_get_priority_min,1)
-SYSCALL(sys_sched_rr_get_interval,2)	/* 165 */
-SYSCALL(sys_nanosleep,2)
-SYSCALL(sys_mremap,4)
-SYSCALL(sys_accept, 3)
-SYSCALL(sys_bind, 3)
-SYSCALL(sys_connect, 3)			/* 170 */
-SYSCALL(sys_getpeername, 3)
-SYSCALL(sys_getsockname, 3)
-SYSCALL(sys_getsockopt, 5)
-SYSCALL(sys_listen, 2)
-SYSCALL(sys_recv, 4)			/* 175 */
-SYSCALL(sys_recvfrom, 6)
-SYSCALL(sys_recvmsg, 3)
-SYSCALL(sys_send, 4)
-SYSCALL(sys_sendmsg, 3)
-SYSCALL(sys_sendto, 6)			/* 180 */
-SYSCALL(sys_setsockopt, 5)
-SYSCALL(sys_shutdown, 2)
-SYSCALL(sys_socket, 3)
-SYSCALL(sys_socketpair, 4)
-SYSCALL(sys_setresuid, 3)		/* 185 */
-SYSCALL(sys_getresuid, 3)
-SYSCALL(sys_ni_syscall, 5)
-SYSCALL(sys_poll, 3)
-SYSCALL(sys_nfsservctl, 3)
-SYSCALL(sys_setresgid, 3)		/* 190 */
-SYSCALL(sys_getresgid, 3)
-SYSCALL(sys_prctl, 5)
-SYSCALL(sys_rt_sigreturn, 0)
-SYSCALL(sys_rt_sigaction, 4)
-SYSCALL(sys_rt_sigprocmask, 4)		/* 195 */
-SYSCALL(sys_rt_sigpending, 2)
-SYSCALL(sys_rt_sigtimedwait, 4)
-SYSCALL(sys_rt_sigqueueinfo, 3)
-SYSCALL(sys_rt_sigsuspend, 0)
-SYSCALL(sys_pread64, 5)			/* 200 */
-SYSCALL(sys_pwrite64, 5)
-SYSCALL(sys_chown, 3)
-SYSCALL(sys_getcwd, 2)
-SYSCALL(sys_capget, 2)
-SYSCALL(sys_capset, 2)			/* 205 */
-SYSCALL(sys_sigaltstack, 0)
-SYSCALL(sys_sendfile, 4)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_ni_syscall, 0)
-SYSCALL(sys_mmap, 6)			/* 210 */
-SYSCALL(sys_truncate64, 2)
-SYSCALL(sys_ftruncate64, 2)
-SYSCALL(sys_stat64, 2)
-SYSCALL(sys_lstat64, 2)
-SYSCALL(sys_fstat64, 2)			/* 215 */
-SYSCALL(sys_pivot_root, 2)
-SYSCALL(sys_mincore, 3)
-SYSCALL(sys_madvise, 3)
-SYSCALL(sys_getdents64, 3)
-SYSCALL(sys_ni_syscall, 0)		/* 220 */
diff --git a/include/asm-xtensa/fcntl.h b/include/asm-xtensa/fcntl.h
index ec066ae96caf..0609fc691b72 100644
--- a/include/asm-xtensa/fcntl.h
+++ b/include/asm-xtensa/fcntl.h
@@ -14,48 +14,86 @@
 
 /* open/fcntl - O_SYNC is only implemented on blocks devices and on files
    located on an ext2 file system */
-#define O_APPEND	0x0008
-#define O_SYNC		0x0010
-#define O_NONBLOCK	0x0080
-#define O_CREAT         0x0100	/* not fcntl */
-#define O_EXCL		0x0400	/* not fcntl */
-#define O_NOCTTY	0x0800	/* not fcntl */
-#define FASYNC		0x1000	/* fcntl, for BSD compatibility */
-#define O_LARGEFILE	0x2000	/* allow large file opens - currently ignored */
-#define O_DIRECT	0x8000	/* direct disk access hint - currently ignored*/
-#define O_NOATIME	0x100000
-
-#define F_GETLK		14
-#define F_GETLK64       15
+#define O_ACCMODE	   0003
+#define O_RDONLY	     00
+#define O_WRONLY	     01
+#define O_RDWR		     02
+#define O_CREAT		   0100	/* not fcntl */
+#define O_EXCL		   0200	/* not fcntl */
+#define O_NOCTTY	   0400	/* not fcntl */
+#define O_TRUNC		  01000	/* not fcntl */
+#define O_APPEND	  02000
+#define O_NONBLOCK	  04000
+#define O_NDELAY	O_NONBLOCK
+#define O_SYNC		 010000
+#define FASYNC		 020000	/* fcntl, for BSD compatibility */
+#define O_DIRECT	 040000	/* direct disk access hint */
+#define O_LARGEFILE	0100000
+#define O_DIRECTORY	0200000	/* must be a directory */
+#define O_NOFOLLOW	0400000 /* don't follow links */
+#define O_NOATIME	01000000
+
+#define F_DUPFD		0	/* dup */
+#define F_GETFD		1	/* get close_on_exec */
+#define F_SETFD		2	/* set/clear close_on_exec */
+#define F_GETFL		3	/* get file->f_flags */
+#define F_SETFL		4	/* set file->f_flags */
+#define F_GETLK		5
 #define F_SETLK		6
 #define F_SETLKW	7
-#define F_SETLK64       16
-#define F_SETLKW64      17
 
-#define F_SETOWN	24	/*  for sockets. */
-#define F_GETOWN	23	/*  for sockets. */
+#define F_SETOWN	8	/*  for sockets. */
+#define F_GETOWN	9	/*  for sockets. */
+#define F_SETSIG	10	/*  for sockets. */
+#define F_GETSIG	11	/*  for sockets. */
+
+#define F_GETLK64	12	/*  using 'struct flock64' */
+#define F_SETLK64	13
+#define F_SETLKW64	14
+
+/* for F_[GET|SET]FL */
+#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
+
+/* for posix fcntl() and lockf() */
+#define F_RDLCK		0
+#define F_WRLCK		1
+#define F_UNLCK		2
+
+/* for old implementation of bsd flock () */
+#define F_EXLCK		4	/* or 3 */
+#define F_SHLCK		8	/* or 4 */
 
-typedef struct flock {
+/* for leases */
+#define F_INPROGRESS	16
+
+/* operations for bsd flock(), also used by the kernel implementation */
+#define LOCK_SH		1	/* shared lock */
+#define LOCK_EX		2	/* exclusive lock */
+#define LOCK_NB		4	/* or'd with one of the above to prevent
+				   blocking */
+#define LOCK_UN		8	/* remove lock */
+
+#define LOCK_MAND	32	/* This is a mandatory flock */
+#define LOCK_READ	64	/* ... Which allows concurrent read operations */
+#define LOCK_WRITE	128	/* ... Which allows concurrent write operations */
+#define LOCK_RW		192	/* ... Which allows concurrent read & write ops */
+
+struct flock {
 	short l_type;
 	short l_whence;
-	__kernel_off_t l_start;
-	__kernel_off_t l_len;
-	long  l_sysid;
-	__kernel_pid_t l_pid;
-	long  pad[4];
-} flock_t;
+	off_t l_start;
+	off_t l_len;
+	pid_t l_pid;
+};
 
 struct flock64 {
 	short  l_type;
 	short  l_whence;
-	__kernel_off_t l_start;
-	__kernel_off_t l_len;
+	loff_t l_start;
+	loff_t l_len;
 	pid_t  l_pid;
 };
 
-#define HAVE_ARCH_STRUCT_FLOCK
-#define HAVE_ARCH_STRUCT_FLOCK64
-
-#include <asm-generic/fcntl.h>
+#define F_LINUX_SPECIFIC_BASE	1024
 
 #endif /* _XTENSA_FCNTL_H */
diff --git a/include/asm-xtensa/posix_types.h b/include/asm-xtensa/posix_types.h
index 2c816b0e7762..3470b44c12ce 100644
--- a/include/asm-xtensa/posix_types.h
+++ b/include/asm-xtensa/posix_types.h
@@ -21,7 +21,7 @@
 
 typedef unsigned long	__kernel_ino_t;
 typedef unsigned int	__kernel_mode_t;
-typedef unsigned short	__kernel_nlink_t;
+typedef unsigned long	__kernel_nlink_t;
 typedef long		__kernel_off_t;
 typedef int		__kernel_pid_t;
 typedef unsigned short	__kernel_ipc_pid_t;
diff --git a/include/asm-xtensa/shmbuf.h b/include/asm-xtensa/shmbuf.h
index a30b81a4b933..ad4b0121782c 100644
--- a/include/asm-xtensa/shmbuf.h
+++ b/include/asm-xtensa/shmbuf.h
@@ -19,6 +19,7 @@
 #ifndef _XTENSA_SHMBUF_H
 #define _XTENSA_SHMBUF_H
 
+#if defined (__XTENSA_EL__)
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
 	size_t			shm_segsz;	/* size of segment (bytes) */
@@ -34,6 +35,26 @@ struct shmid64_ds {
 	unsigned long		__unused4;
 	unsigned long		__unused5;
 };
+#elif defined (__XTENSA_EB__)
+struct shmid64_ds {
+	struct ipc64_perm	shm_perm;	/* operation perms */
+	size_t			shm_segsz;	/* size of segment (bytes) */
+	__kernel_time_t		shm_atime;	/* last attach time */
+	unsigned long		__unused1;
+	__kernel_time_t		shm_dtime;	/* last detach time */
+	unsigned long		__unused2;
+	__kernel_time_t		shm_ctime;	/* last change time */
+	unsigned long		__unused3;
+	__kernel_pid_t		shm_cpid;	/* pid of creator */
+	__kernel_pid_t		shm_lpid;	/* pid of last operator */
+	unsigned long		shm_nattch;	/* no. of current attaches */
+	unsigned long		__unused4;
+	unsigned long		__unused5;
+};
+#else
+# error endian order not defined
+#endif
+
 
 struct shminfo64 {
 	unsigned long	shmmax;
diff --git a/include/asm-xtensa/stat.h b/include/asm-xtensa/stat.h
index 2f4662ff6c3a..149f4bce092f 100644
--- a/include/asm-xtensa/stat.h
+++ b/include/asm-xtensa/stat.h
@@ -13,93 +13,57 @@
 
 #include <linux/types.h>
 
-struct __old_kernel_stat {
-	unsigned short st_dev;
-	unsigned short st_ino;
-	unsigned short st_mode;
-	unsigned short st_nlink;
-	unsigned short st_uid;
-	unsigned short st_gid;
-	unsigned short st_rdev;
-	unsigned long  st_size;
-	unsigned long  st_atime;
-	unsigned long  st_mtime;
-	unsigned long  st_ctime;
-};
-
 #define STAT_HAVE_NSEC 1
 
 struct stat {
-	unsigned short st_dev;
-	unsigned short __pad1;
-	unsigned long st_ino;
-	unsigned short st_mode;
-	unsigned short st_nlink;
-	unsigned short st_uid;
-	unsigned short st_gid;
-	unsigned short st_rdev;
-	unsigned short __pad2;
-	unsigned long  st_size;
-	unsigned long  st_blksize;
-	unsigned long  st_blocks;
-	unsigned long  st_atime;
-	unsigned long  st_atime_nsec;
-	unsigned long  st_mtime;
-	unsigned long  st_mtime_nsec;
-	unsigned long  st_ctime;
-	unsigned long  st_ctime_nsec;
-	unsigned long  __unused4;
-	unsigned long  __unused5;
+	unsigned long	st_dev;
+	ino_t		st_ino;
+	mode_t		st_mode;
+	nlink_t		st_nlink;
+	uid_t		st_uid;
+	gid_t		st_gid;
+	unsigned int	st_rdev;
+	off_t		st_size;
+	unsigned long	st_blksize;
+	unsigned long	st_blocks;
+	unsigned long	st_atime;
+	unsigned long	st_atime_nsec;
+	unsigned long	st_mtime;
+	unsigned long	st_mtime_nsec;
+	unsigned long	st_ctime;
+	unsigned long	st_ctime_nsec;
+	unsigned long	__unused4;
+	unsigned long	__unused5;
 };
 
-/* This matches struct stat64 in glibc-2.2.3. */
+/* This matches struct stat64 in glibc-2.3 */
 
 struct stat64  {
-#ifdef __XTENSA_EL__
-	unsigned short	st_dev;		/* Device */
-	unsigned char	__pad0[10];
-#else
-	unsigned char	__pad0[6];
-	unsigned short	st_dev;
-	unsigned char	__pad1[2];
-#endif
-
-#define STAT64_HAS_BROKEN_ST_INO	1
-	unsigned long __st_ino;		/* 32bit file serial number. */
-
+	unsigned long long st_dev;	/* Device */
+	unsigned long long st_ino;	/* File serial number */
 	unsigned int  st_mode;		/* File mode. */
 	unsigned int  st_nlink;		/* Link count. */
 	unsigned int  st_uid;		/* User ID of the file's owner. */
 	unsigned int  st_gid;		/* Group ID of the file's group. */
-
-#ifdef __XTENSA_EL__
-	unsigned short	st_rdev;	/* Device number, if device. */
-	unsigned char	__pad3[10];
-#else
-	unsigned char	__pad2[6];
-	unsigned short	st_rdev;
-	unsigned char	__pad3[2];
-#endif
-
-	long long int  st_size;		/* Size of file, in bytes. */
-	long int st_blksize;		/* Optimal block size for I/O. */
-
-#ifdef __XTENSA_EL__
-	unsigned long  st_blocks;	/* Number 512-byte blocks allocated. */
-	unsigned long  __pad4;
+	unsigned long long st_rdev;	/* Device number, if device. */
+	long long st_size;		/* Size of file, in bytes. */
+	long st_blksize;		/* Optimal block size for I/O. */
+	unsigned long __unused2;
+#ifdef __XTENSA_EB__
+	unsigned long __unused3;
+	long st_blocks;			/* Number 512-byte blocks allocated. */
 #else
-	unsigned long  __pad4;
-	unsigned long  st_blocks;
+	long st_blocks;			/* Number 512-byte blocks allocated. */
+	unsigned long __unused3;
 #endif
-
-	unsigned long  __pad5;
-	long int st_atime;		/* Time of last access. */
-	unsigned long  st_atime_nsec;
-	long int st_mtime;		/* Time of last modification. */
-	unsigned long  st_mtime_nsec;
-	long int  st_ctime;		/* Time of last status change. */
-	unsigned long  st_ctime_nsec;
-	unsigned long long int st_ino;	/* File serial number. */
+	long st_atime;			/* Time of last access. */
+	unsigned long st_atime_nsec;
+	long st_mtime;			/* Time of last modification. */
+	unsigned long st_mtime_nsec;
+	long st_ctime;			/* Time of last status change. */
+	unsigned long st_ctime_nsec;
+	unsigned long __unused4;
+	unsigned long __unused5;
 };
 
 #endif	/* _XTENSA_STAT_H */
diff --git a/include/asm-xtensa/syscall.h b/include/asm-xtensa/syscall.h
new file mode 100644
index 000000000000..6cb0d42f11c8
--- /dev/null
+++ b/include/asm-xtensa/syscall.h
@@ -0,0 +1,20 @@
+struct pt_regs;
+struct sigaction;
+asmlinkage long xtensa_execve(char*, char**, char**, struct pt_regs*);
+asmlinkage long xtensa_clone(unsigned long, unsigned long, struct pt_regs*);
+asmlinkage long xtensa_pipe(int __user *);
+asmlinkage long xtensa_mmap2(unsigned long, unsigned long, unsigned long,
+    			     unsigned long, unsigned long, unsigned long);
+asmlinkage long xtensa_ptrace(long, long, long, long);
+asmlinkage long xtensa_sigreturn(struct pt_regs*);
+asmlinkage long xtensa_rt_sigreturn(struct pt_regs*);
+asmlinkage long xtensa_sigsuspend(struct pt_regs*);
+asmlinkage long xtensa_rt_sigsuspend(struct pt_regs*);
+asmlinkage long xtensa_sigaction(int, const struct old_sigaction*,
+				 struct old_sigaction*);
+asmlinkage long xtensa_sigaltstack(struct pt_regs *regs);
+asmlinkage long sys_rt_sigaction(int,
+				 const struct sigaction __user *,
+				 struct sigaction __user *,
+				 size_t);
+asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg);
diff --git a/include/asm-xtensa/unistd.h b/include/asm-xtensa/unistd.h
index 15b0932523d5..8a7fb6964ce1 100644
--- a/include/asm-xtensa/unistd.h
+++ b/include/asm-xtensa/unistd.h
@@ -11,212 +11,591 @@
 #ifndef _XTENSA_UNISTD_H
 #define _XTENSA_UNISTD_H
 
-#define __NR_spill		  0
-#define __NR_exit		  1
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-#define __NR_break		 17
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_ptrace		 26
-#define __NR_utime		 30
-#define __NR_stty		 31
-#define __NR_gtty		 32
-#define __NR_access		 33
-#define __NR_ftime		 35
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-#define __NR_prof		 44
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_lock		 53
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-#define __NR_setpgid		 57
-#define __NR_ulimit		 58
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit	 	 76	/* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_select		 82
-#define __NR_symlink		 83
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-#define __NR_profil		 98
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-#define __NR_ioperm		101
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_iopl		110
-#define __NR_vhangup		111
-#define __NR_idle		112
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_modify_ldt		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_create_module	127
-#define __NR_init_module	128
-#define __NR_delete_module	129
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_cacheflush         147
-#define __NR_cachectl           148
-#define __NR_sysxtensa          149
-#define __NR_sysdummy           150
-#define __NR_getsid		151
-#define __NR_fdatasync		152
-#define __NR__sysctl		153
-#define __NR_mlock		154
-#define __NR_munlock		155
-#define __NR_mlockall		156
-#define __NR_munlockall		157
-#define __NR_sched_setparam		158
-#define __NR_sched_getparam		159
-#define __NR_sched_setscheduler		160
-#define __NR_sched_getscheduler		161
-#define __NR_sched_yield		162
-#define __NR_sched_get_priority_max	163
-#define __NR_sched_get_priority_min	164
-#define __NR_sched_rr_get_interval	165
-#define __NR_nanosleep		166
-#define __NR_mremap		167
-#define __NR_accept             168
-#define __NR_bind               169
-#define __NR_connect            170
-#define __NR_getpeername        171
-#define __NR_getsockname        172
-#define __NR_getsockopt         173
-#define __NR_listen             174
-#define __NR_recv               175
-#define __NR_recvfrom           176
-#define __NR_recvmsg            177
-#define __NR_send               178
-#define __NR_sendmsg            179
-#define __NR_sendto             180
-#define __NR_setsockopt         181
-#define __NR_shutdown           182
-#define __NR_socket             183
-#define __NR_socketpair         184
-#define __NR_setresuid		185
-#define __NR_getresuid		186
-#define __NR_query_module	187
-#define __NR_poll		188
-#define __NR_nfsservctl		189
-#define __NR_setresgid		190
-#define __NR_getresgid		191
-#define __NR_prctl              192
-#define __NR_rt_sigreturn	193
-#define __NR_rt_sigaction	194
-#define __NR_rt_sigprocmask	195
-#define __NR_rt_sigpending	196
-#define __NR_rt_sigtimedwait	197
-#define __NR_rt_sigqueueinfo	198
-#define __NR_rt_sigsuspend	199
-#define __NR_pread		200
-#define __NR_pwrite		201
-#define __NR_chown		202
-#define __NR_getcwd		203
-#define __NR_capget		204
-#define __NR_capset		205
-#define __NR_sigaltstack	206
-#define __NR_sendfile		207
-#define __NR_mmap2		210
-#define __NR_truncate64		211
-#define __NR_ftruncate64	212
-#define __NR_stat64		213
-#define __NR_lstat64		214
-#define __NR_fstat64		215
-#define __NR_pivot_root		216
-#define __NR_mincore		217
-#define __NR_madvise		218
-#define __NR_getdents64		219
-
-/* Keep this last; should always equal the last valid call number. */
-#define __NR_Linux_syscalls     220
-
-/* user-visible error numbers are in the range -1 - -125: see
- * <asm-xtensa/errno.h> */
-
-#define SYSXTENSA_RESERVED	   0	/* don't use this */
-#define SYSXTENSA_ATOMIC_SET	   1	/* set variable */
-#define SYSXTENSA_ATOMIC_EXG_ADD   2	/* exchange memory and add */
-#define SYSXTENSA_ATOMIC_ADD	   3	/* add to memory */
-#define SYSXTENSA_ATOMIC_CMP_SWP   4	/* compare and swap */
-
-#define SYSXTENSA_COUNT		   5	/* count of syscall0 functions*/
+#ifndef __SYSCALL
+# define __SYSCALL(nr,func,nargs)
+#endif
+
+#define __NR_spill				  0
+__SYSCALL(  0, sys_ni_syscall, 0)
+#define __NR_xtensa				  1
+__SYSCALL(  1, sys_ni_syscall, 0)
+#define __NR_available4				  2
+__SYSCALL(  2, sys_ni_syscall, 0)
+#define __NR_available5				  3
+__SYSCALL(  3, sys_ni_syscall, 0)
+#define __NR_available6				  4
+__SYSCALL(  4, sys_ni_syscall, 0)
+#define __NR_available7				  5
+__SYSCALL(  5, sys_ni_syscall, 0)
+#define __NR_available8				  6
+__SYSCALL(  6, sys_ni_syscall, 0)
+#define __NR_available9				  7
+__SYSCALL(  7, sys_ni_syscall, 0)
+
+/* File Operations */
+
+#define __NR_open 				  8
+__SYSCALL(  8, sys_open, 3)
+#define __NR_close 				  9
+__SYSCALL(  9, sys_close, 1)
+#define __NR_dup 				 10
+__SYSCALL( 10, sys_dup, 1)
+#define __NR_dup2 				 11
+__SYSCALL( 11, sys_dup2, 2)
+#define __NR_read 				 12
+__SYSCALL( 12, sys_read, 3)
+#define __NR_write 				 13
+__SYSCALL( 13, sys_write, 3)
+#define __NR_select 				 14
+__SYSCALL( 14, sys_select, 5)
+#define __NR_lseek 				 15
+__SYSCALL( 15, sys_lseek, 3)
+#define __NR_poll 				 16
+__SYSCALL( 16, sys_poll, 3)
+#define __NR__llseek				 17
+__SYSCALL( 17, sys_llseek, 5)
+#define __NR_epoll_wait 			 18
+__SYSCALL( 18, sys_epoll_wait, 4)
+#define __NR_epoll_ctl 				 19
+__SYSCALL( 19, sys_epoll_ctl, 4)
+#define __NR_epoll_create 			 20
+__SYSCALL( 20, sys_epoll_create, 1)
+#define __NR_creat 				 21
+__SYSCALL( 21, sys_creat, 2)
+#define __NR_truncate 				 22
+__SYSCALL( 22, sys_truncate, 2)
+#define __NR_ftruncate 				 23
+__SYSCALL( 23, sys_ftruncate, 2)
+#define __NR_readv 				 24
+__SYSCALL( 24, sys_readv, 3)
+#define __NR_writev 				 25
+__SYSCALL( 25, sys_writev, 3)
+#define __NR_fsync 				 26
+__SYSCALL( 26, sys_fsync, 1)
+#define __NR_fdatasync 				 27
+__SYSCALL( 27, sys_fdatasync, 1)
+#define __NR_truncate64 			 28
+__SYSCALL( 28, sys_truncate64, 2)
+#define __NR_ftruncate64 			 29
+__SYSCALL( 29, sys_ftruncate64, 2)
+#define __NR_pread64 				 30
+__SYSCALL( 30, sys_pread64, 6)
+#define __NR_pwrite64 				 31
+__SYSCALL( 31, sys_pwrite64, 6)
+
+#define __NR_link 				 32
+__SYSCALL( 32, sys_link, 2)
+#define __NR_rename 				 33
+__SYSCALL( 33, sys_rename, 2)
+#define __NR_symlink 				 34
+__SYSCALL( 34, sys_symlink, 2)
+#define __NR_readlink 				 35
+__SYSCALL( 35, sys_readlink, 3)
+#define __NR_mknod 				 36
+__SYSCALL( 36, sys_mknod, 3)
+#define __NR_pipe 				 37
+__SYSCALL( 37, xtensa_pipe, 1)
+#define __NR_unlink 				 38
+__SYSCALL( 38, sys_unlink, 1)
+#define __NR_rmdir 				 39
+__SYSCALL( 39, sys_rmdir, 1)
+
+#define __NR_mkdir 				 40
+__SYSCALL( 40, sys_mkdir, 2)
+#define __NR_chdir 				 41
+__SYSCALL( 41, sys_chdir, 1)
+#define __NR_fchdir 				 42
+__SYSCALL( 42, sys_fchdir, 1)
+#define __NR_getcwd 				 43
+__SYSCALL( 43, sys_getcwd, 2)
+
+#define __NR_chmod 				 44
+__SYSCALL( 44, sys_chmod, 2)
+#define __NR_chown 				 45
+__SYSCALL( 45, sys_chown, 3)
+#define __NR_stat 				 46
+__SYSCALL( 46, sys_newstat, 2)
+#define __NR_stat64 				 47
+__SYSCALL( 47, sys_stat64, 2)
+
+#define __NR_lchown 				 48
+__SYSCALL( 48, sys_lchown, 3)
+#define __NR_lstat 				 49
+__SYSCALL( 49, sys_newlstat, 2)
+#define __NR_lstat64 				 50
+__SYSCALL( 50, sys_lstat64, 2)
+#define __NR_available51			 51
+__SYSCALL( 51, sys_ni_syscall, 0)
+
+#define __NR_fchmod 				 52
+__SYSCALL( 52, sys_fchmod, 2)
+#define __NR_fchown 				 53
+__SYSCALL( 53, sys_fchown, 3)
+#define __NR_fstat 				 54
+__SYSCALL( 54, sys_newfstat, 2)
+#define __NR_fstat64 				 55
+__SYSCALL( 55, sys_fstat64, 2)
+
+#define __NR_flock 				 56
+__SYSCALL( 56, sys_flock, 2)
+#define __NR_access 				 57
+__SYSCALL( 57, sys_access, 2)
+#define __NR_umask 				 58
+__SYSCALL( 58, sys_umask, 1)
+#define __NR_getdents 				 59
+__SYSCALL( 59, sys_getdents, 3)
+#define __NR_getdents64 			 60
+__SYSCALL( 60, sys_getdents64, 3)
+#define __NR_fcntl64 				 61
+__SYSCALL( 61, sys_fcntl64, 3)
+#define __NR_available62			 62
+__SYSCALL( 62, sys_ni_syscall, 0)
+#define __NR_fadvise64_64 			 63
+__SYSCALL( 63, sys_fadvise64_64, 6)
+#define __NR_utime				 64	/* glibc 2.3.3 ?? */
+__SYSCALL( 64, sys_utime, 2)
+#define __NR_utimes 				 65
+__SYSCALL( 65, sys_utimes, 2)
+#define __NR_ioctl 				 66
+__SYSCALL( 66, sys_ioctl, 3)
+#define __NR_fcntl 				 67
+__SYSCALL( 67, sys_fcntl, 3)
+
+#define __NR_setxattr 				 68
+__SYSCALL( 68, sys_setxattr, 5)
+#define __NR_getxattr 				 69
+__SYSCALL( 69, sys_getxattr, 4)
+#define __NR_listxattr 				 70
+__SYSCALL( 70, sys_listxattr, 3)
+#define __NR_removexattr 			 71
+__SYSCALL( 71, sys_removexattr, 2)
+#define __NR_lsetxattr 				 72
+__SYSCALL( 72, sys_lsetxattr, 5)
+#define __NR_lgetxattr 				 73
+__SYSCALL( 73, sys_lgetxattr, 4)
+#define __NR_llistxattr 			 74
+__SYSCALL( 74, sys_llistxattr, 3)
+#define __NR_lremovexattr 			 75
+__SYSCALL( 75, sys_lremovexattr, 2)
+#define __NR_fsetxattr 				 76
+__SYSCALL( 76, sys_fsetxattr, 5)
+#define __NR_fgetxattr 				 77
+__SYSCALL( 77, sys_fgetxattr, 4)
+#define __NR_flistxattr 			 78
+__SYSCALL( 78, sys_flistxattr, 3)
+#define __NR_fremovexattr 			 79
+__SYSCALL( 79, sys_fremovexattr, 2)
+
+/* File Map / Shared Memory Operations */
+
+#define __NR_mmap2 				 80
+__SYSCALL( 80, xtensa_mmap2, 6)
+#define __NR_munmap 				 81
+__SYSCALL( 81, sys_munmap, 2)
+#define __NR_mprotect 				 82
+__SYSCALL( 82, sys_mprotect, 3)
+#define __NR_brk 				 83
+__SYSCALL( 83, sys_brk, 1)
+#define __NR_mlock 				 84
+__SYSCALL( 84, sys_mlock, 2)
+#define __NR_munlock 				 85
+__SYSCALL( 85, sys_munlock, 2)
+#define __NR_mlockall 				 86
+__SYSCALL( 86, sys_mlockall, 1)
+#define __NR_munlockall 			 87
+__SYSCALL( 87, sys_munlockall, 0)
+#define __NR_mremap 				 88
+__SYSCALL( 88, sys_mremap, 4)
+#define __NR_msync 				 89
+__SYSCALL( 89, sys_msync, 3)
+#define __NR_mincore 				 90
+__SYSCALL( 90, sys_mincore, 3)
+#define __NR_madvise 				 91
+__SYSCALL( 91, sys_madvise, 3)
+#define __NR_shmget				 92
+__SYSCALL( 92, sys_shmget, 4)
+#define __NR_shmat				 93
+__SYSCALL( 93, xtensa_shmat, 4)
+#define __NR_shmctl				 94
+__SYSCALL( 94, sys_shmctl, 4)
+#define __NR_shmdt				 95
+__SYSCALL( 95, sys_shmdt, 4)
+
+/* Socket Operations */
+
+#define __NR_socket 				 96
+__SYSCALL( 96, sys_socket, 3)
+#define __NR_setsockopt 			 97
+__SYSCALL( 97, sys_setsockopt, 5)
+#define __NR_getsockopt 			 98
+__SYSCALL( 98, sys_getsockopt, 5)
+#define __NR_shutdown 				 99
+__SYSCALL( 99, sys_shutdown, 2)
+
+#define __NR_bind 				100
+__SYSCALL(100, sys_bind, 3)
+#define __NR_connect 				101
+__SYSCALL(101, sys_connect, 3)
+#define __NR_listen 				102
+__SYSCALL(102, sys_listen, 2)
+#define __NR_accept 				103
+__SYSCALL(103, sys_accept, 3)
+
+#define __NR_getsockname 			104
+__SYSCALL(104, sys_getsockname, 3)
+#define __NR_getpeername 			105
+__SYSCALL(105, sys_getpeername, 3)
+#define __NR_sendmsg 				106
+__SYSCALL(106, sys_sendmsg, 3)
+#define __NR_recvmsg 				107
+__SYSCALL(107, sys_recvmsg, 3)
+#define __NR_send 				108
+__SYSCALL(108, sys_send, 4)
+#define __NR_recv 				109
+__SYSCALL(109, sys_recv, 4)
+#define __NR_sendto 				110
+__SYSCALL(110, sys_sendto, 6)
+#define __NR_recvfrom 				111
+__SYSCALL(111, sys_recvfrom, 6)
+
+#define __NR_socketpair 			112
+__SYSCALL(112, sys_socketpair, 4)
+#define __NR_sendfile 				113
+__SYSCALL(113, sys_sendfile, 4)
+#define __NR_sendfile64 			114
+__SYSCALL(114, sys_sendfile64, 4)
+#define __NR_available115			115
+__SYSCALL(115, sys_ni_syscall, 0)
+
+/* Process Operations */
+
+#define __NR_clone 				116
+__SYSCALL(116, xtensa_clone, 5)
+#define __NR_execve 				117
+__SYSCALL(117, xtensa_execve, 3)
+#define __NR_exit 				118
+__SYSCALL(118, sys_exit, 1)
+#define __NR_exit_group 			119
+__SYSCALL(119, sys_exit_group, 1)
+#define __NR_getpid 				120
+__SYSCALL(120, sys_getpid, 0)
+#define __NR_wait4 				121
+__SYSCALL(121, sys_wait4, 4)
+#define __NR_waitid 				122
+__SYSCALL(122, sys_waitid, 5)
+#define __NR_kill 				123
+__SYSCALL(123, sys_kill, 2)
+#define __NR_tkill 				124
+__SYSCALL(124, sys_tkill, 2)
+#define __NR_tgkill 				125
+__SYSCALL(125, sys_tgkill, 3)
+#define __NR_set_tid_address 			126
+__SYSCALL(126, sys_set_tid_address, 1)
+#define __NR_gettid 				127
+__SYSCALL(127, sys_gettid, 0)
+#define __NR_setsid 				128
+__SYSCALL(128, sys_setsid, 0)
+#define __NR_getsid 				129
+__SYSCALL(129, sys_getsid, 1)
+#define __NR_prctl 				130
+__SYSCALL(130, sys_prctl, 5)
+#define __NR_personality 			131
+__SYSCALL(131, sys_personality, 1)
+#define __NR_getpriority 			132
+__SYSCALL(132, sys_getpriority, 2)
+#define __NR_setpriority 			133
+__SYSCALL(133, sys_setpriority, 3)
+#define __NR_setitimer 				134
+__SYSCALL(134, sys_setitimer, 3)
+#define __NR_getitimer 				135
+__SYSCALL(135, sys_getitimer, 2)
+#define __NR_setuid 				136
+__SYSCALL(136, sys_setuid, 1)
+#define __NR_getuid 				137
+__SYSCALL(137, sys_getuid, 0)
+#define __NR_setgid 				138
+__SYSCALL(138, sys_setgid, 1)
+#define __NR_getgid 				139
+__SYSCALL(139, sys_getgid, 0)
+#define __NR_geteuid 				140
+__SYSCALL(140, sys_geteuid, 0)
+#define __NR_getegid 				141
+__SYSCALL(141, sys_getegid, 0)
+#define __NR_setreuid 				142
+__SYSCALL(142, sys_setreuid, 2)
+#define __NR_setregid 				143
+__SYSCALL(143, sys_setregid, 2)
+#define __NR_setresuid 				144
+__SYSCALL(144, sys_setresuid, 3)
+#define __NR_getresuid 				145
+__SYSCALL(145, sys_getresuid, 3)
+#define __NR_setresgid 				146
+__SYSCALL(146, sys_setresgid, 3)
+#define __NR_getresgid 				147
+__SYSCALL(147, sys_getresgid, 3)
+#define __NR_setpgid 				148
+__SYSCALL(148, sys_setpgid, 2)
+#define __NR_getpgid 				149
+__SYSCALL(149, sys_getpgid, 1)
+#define __NR_getppid 				150
+__SYSCALL(150, sys_getppid, 0)
+#define __NR_available151			151
+__SYSCALL(151, sys_ni_syscall, 0)
+
+#define __NR_reserved152 			152	/* set_thread_area */
+__SYSCALL(152, sys_ni_syscall, 0)
+#define __NR_reserved153 			153	/* get_thread_area */
+__SYSCALL(153, sys_ni_syscall, 0)
+#define __NR_times 				154
+__SYSCALL(154, sys_times, 1)
+#define __NR_acct 				155
+__SYSCALL(155, sys_acct, 1)
+#define __NR_sched_setaffinity 			156
+__SYSCALL(156, sys_sched_setaffinity, 3)
+#define __NR_sched_getaffinity 			157
+__SYSCALL(157, sys_sched_getaffinity, 3)
+#define __NR_capget 				158
+__SYSCALL(158, sys_capget, 2)
+#define __NR_capset 				159
+__SYSCALL(159, sys_capset, 2)
+#define __NR_ptrace 				160
+__SYSCALL(160, sys_ptrace, 4)
+#define __NR_semtimedop				161
+__SYSCALL(161, sys_semtimedop, 5)
+#define __NR_semget				162
+__SYSCALL(162, sys_semget, 4)
+#define __NR_semop				163
+__SYSCALL(163, sys_semop, 4)
+#define __NR_semctl				164
+__SYSCALL(164, sys_semctl, 4)
+#define __NR_available165			165
+__SYSCALL(165, sys_ni_syscall, 0)
+#define __NR_msgget				166
+__SYSCALL(166, sys_msgget, 4)
+#define __NR_msgsnd				167
+__SYSCALL(167, sys_msgsnd, 4)
+#define __NR_msgrcv				168
+__SYSCALL(168, sys_msgrcv, 4)
+#define __NR_msgctl				169
+__SYSCALL(169, sys_msgctl, 4)
+#define __NR_available170			170
+__SYSCALL(170, sys_ni_syscall, 0)
+#define __NR_available171			171
+__SYSCALL(171, sys_ni_syscall, 0)
+
+/* File System */
+
+#define __NR_mount 				172
+__SYSCALL(172, sys_mount, 5)
+#define __NR_swapon 				173
+__SYSCALL(173, sys_swapon, 2)
+#define __NR_chroot 				174
+__SYSCALL(174, sys_chroot, 1)
+#define __NR_pivot_root 			175
+__SYSCALL(175, sys_pivot_root, 2)
+#define __NR_umount 				176
+__SYSCALL(176, sys_umount, 2)
+#define __NR_swapoff 				177
+__SYSCALL(177, sys_swapoff, 1)
+#define __NR_sync 				178
+__SYSCALL(178, sys_sync, 0)
+#define __NR_available179			179
+__SYSCALL(179, sys_ni_syscall, 0)
+#define __NR_setfsuid 				180
+__SYSCALL(180, sys_setfsuid, 1)
+#define __NR_setfsgid 				181
+__SYSCALL(181, sys_setfsgid, 1)
+#define __NR_sysfs 				182
+__SYSCALL(182, sys_sysfs, 3)
+#define __NR_ustat 				183
+__SYSCALL(183, sys_ustat, 2)
+#define __NR_statfs 				184
+__SYSCALL(184, sys_statfs, 2)
+#define __NR_fstatfs 				185
+__SYSCALL(185, sys_fstatfs, 2)
+#define __NR_statfs64 				186
+__SYSCALL(186, sys_statfs64, 3)
+#define __NR_fstatfs64 				187
+__SYSCALL(187, sys_fstatfs64, 3)
+
+/* System */
+
+#define __NR_setrlimit 				188
+__SYSCALL(188, sys_setrlimit, 2)
+#define __NR_getrlimit 				189
+__SYSCALL(189, sys_getrlimit, 2)
+#define __NR_getrusage 				190
+__SYSCALL(190, sys_getrusage, 2)
+#define __NR_futex				191
+__SYSCALL(191, sys_futex, 5)
+#define __NR_gettimeofday 			192
+__SYSCALL(192, sys_gettimeofday, 2)
+#define __NR_settimeofday 			193
+__SYSCALL(193, sys_settimeofday, 2)
+#define __NR_adjtimex 				194
+__SYSCALL(194, sys_adjtimex, 1)
+#define __NR_nanosleep	 			195
+__SYSCALL(195, sys_nanosleep, 2)
+#define __NR_getgroups 				196
+__SYSCALL(196, sys_getgroups, 2)
+#define __NR_setgroups 				197
+__SYSCALL(197, sys_setgroups, 2)
+#define __NR_sethostname 			198
+__SYSCALL(198, sys_sethostname, 2)
+#define __NR_setdomainname 			199
+__SYSCALL(199, sys_setdomainname, 2)
+#define __NR_syslog 				200
+__SYSCALL(200, sys_syslog, 3)
+#define __NR_vhangup 				201
+__SYSCALL(201, sys_vhangup, 0)
+#define __NR_uselib 				202
+__SYSCALL(202, sys_uselib, 1)
+#define __NR_reboot 				203
+__SYSCALL(203, sys_reboot, 3)
+#define __NR_quotactl 				204
+__SYSCALL(204, sys_quotactl, 4)
+#define __NR_nfsservctl 			205
+__SYSCALL(205, sys_nfsservctl, 3)
+#define __NR__sysctl 				206
+__SYSCALL(206, sys_sysctl, 1)
+#define __NR_bdflush 				207
+__SYSCALL(207, sys_bdflush, 2)
+#define __NR_uname 				208
+__SYSCALL(208, sys_newuname, 1)
+#define __NR_sysinfo 				209
+__SYSCALL(209, sys_sysinfo, 1)
+#define __NR_init_module 			210
+__SYSCALL(210, sys_init_module, 2)
+#define __NR_delete_module 			211
+__SYSCALL(211, sys_delete_module, 1)
+
+#define __NR_sched_setparam 			212
+__SYSCALL(212, sys_sched_setparam, 2)
+#define __NR_sched_getparam 			213
+__SYSCALL(213, sys_sched_getparam, 2)
+#define __NR_sched_setscheduler 		214
+__SYSCALL(214, sys_sched_setscheduler, 3)
+#define __NR_sched_getscheduler 		215
+__SYSCALL(215, sys_sched_getscheduler, 1)
+#define __NR_sched_get_priority_max 		216
+__SYSCALL(216, sys_sched_get_priority_max, 1)
+#define __NR_sched_get_priority_min 		217
+__SYSCALL(217, sys_sched_get_priority_min, 1)
+#define __NR_sched_rr_get_interval 		218
+__SYSCALL(218, sys_sched_rr_get_interval, 2)
+#define __NR_sched_yield 			219
+__SYSCALL(219, sys_sched_yield, 0)
+#define __NR_sigreturn	 			222
+__SYSCALL(222, xtensa_sigreturn, 0)
+
+/* Signal Handling */
+
+#define __NR_restart_syscall 			223
+__SYSCALL(223, sys_restart_syscall, 0)
+#define __NR_sigaltstack 			224
+__SYSCALL(224, xtensa_sigaltstack, 2)
+#define __NR_rt_sigreturn 			225
+__SYSCALL(225, xtensa_rt_sigreturn, 1)
+#define __NR_rt_sigaction 			226
+__SYSCALL(226, sys_rt_sigaction, 4)
+#define __NR_rt_sigprocmask 			227
+__SYSCALL(227, sys_rt_sigprocmask, 4)
+#define __NR_rt_sigpending 			228
+__SYSCALL(228, sys_rt_sigpending, 2)
+#define __NR_rt_sigtimedwait 			229
+__SYSCALL(229, sys_rt_sigtimedwait, 4)
+#define __NR_rt_sigqueueinfo 			230
+__SYSCALL(230, sys_rt_sigqueueinfo, 3)
+#define __NR_rt_sigsuspend 			231
+__SYSCALL(231, xtensa_rt_sigsuspend, 2)
+
+/* Message */
+
+#define __NR_mq_open 				232
+__SYSCALL(232, sys_mq_open, 4)
+#define __NR_mq_unlink 				233
+__SYSCALL(233, sys_mq_unlink, 1)
+#define __NR_mq_timedsend 			234
+__SYSCALL(234, sys_mq_timedsend, 5)
+#define __NR_mq_timedreceive 			235
+__SYSCALL(235, sys_mq_timedreceive, 5)
+#define __NR_mq_notify 				236
+__SYSCALL(236, sys_mq_notify, 2)
+#define __NR_mq_getsetattr 			237
+__SYSCALL(237, sys_mq_getsetattr, 3)
+#define __NR_available238			238
+__SYSCALL(238, sys_ni_syscall, 0)
+
+/* IO */
+
+#define __NR_io_setup 				239
+__SYSCALL(239, sys_io_setup, 2)
+#define __NR_io_destroy 			240
+__SYSCALL(240, sys_io_destroy, 1)
+#define __NR_io_submit 				241
+__SYSCALL(241, sys_io_submit, 3)
+#define __NR_io_getevents 			242
+__SYSCALL(242, sys_io_getevents, 5)
+#define __NR_io_cancel 				243
+__SYSCALL(243, sys_io_cancel, 3)
+#define __NR_clock_settime 			244
+__SYSCALL(244, sys_clock_settime, 2)
+#define __NR_clock_gettime 			245
+__SYSCALL(245, sys_clock_gettime, 2)
+#define __NR_clock_getres 			246
+__SYSCALL(246, sys_clock_getres, 2)
+#define __NR_clock_nanosleep 			247
+__SYSCALL(247, sys_clock_nanosleep, 4)
+
+/* Timer */
+
+#define __NR_timer_create 			248
+__SYSCALL(248, sys_timer_create, 3)
+#define __NR_timer_delete 			249
+__SYSCALL(249, sys_timer_delete, 1)
+#define __NR_timer_settime 			250
+__SYSCALL(250, sys_timer_settime, 4)
+#define __NR_timer_gettime 			251
+__SYSCALL(251, sys_timer_gettime, 2)
+#define __NR_timer_getoverrun 			252
+__SYSCALL(252, sys_timer_getoverrun, 1)
+
+/* System */
+
+#define __NR_reserved244 			253
+__SYSCALL(253, sys_ni_syscall, 0)
+#define __NR_lookup_dcookie 			254
+__SYSCALL(254, sys_lookup_dcookie, 4)
+#define __NR_available255			255
+__SYSCALL(255, sys_ni_syscall, 0)
+#define __NR_add_key 				256
+__SYSCALL(256, sys_add_key, 5)
+#define __NR_request_key 			257
+__SYSCALL(257, sys_request_key, 5)
+#define __NR_keyctl 				258
+__SYSCALL(258, sys_keyctl, 5)
+#define __NR_available259			259
+__SYSCALL(259, sys_ni_syscall, 0)
+
+#define __NR_syscall_count			261
+
+/*
+ * sysxtensa syscall handler
+ *
+ * int sysxtensa (SYS_XTENSA_ATOMIC_SET,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_ADD,     ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_EXG_ADD, ptr, val,    unused);
+ * int sysxtensa (SYS_XTENSA_ATOMIC_CMP_SWP, ptr, oldval, newval);
+ *        a2            a6                   a3    a4      a5
+ */
+
+#define SYS_XTENSA_RESERVED               0     /* don't use this */
+#define SYS_XTENSA_ATOMIC_SET             1     /* set variable */
+#define SYS_XTENSA_ATOMIC_EXG_ADD         2     /* exchange memory and add */
+#define SYS_XTENSA_ATOMIC_ADD             3     /* add to memory */
+#define SYS_XTENSA_ATOMIC_CMP_SWP         4     /* compare and swap */
+
+#define SYS_XTENSA_COUNT                  5     /* count */
 
 #ifdef __KERNEL__
 
@@ -232,7 +611,9 @@
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_LLSEEK
 #define __ARCH_WANT_SYS_RT_SIGACTION
+#define __ARCH_WANT_SYS_RT_SIGSUSPEND
 
-#endif /* __KERNEL__ */
+#endif	/* __KERNEL__ */
 
 #endif	/* _XTENSA_UNISTD_H */
+