initial check-in, version 0.5.0 v0.5.0

11 files changed, 852 insertions, 0 deletions

diff --git a/src/internal/atomic.h b/src/internal/atomic.h
new file mode 100644
index 00000000..a15f8c2a
--- /dev/null
+++ b/src/internal/atomic.h
@@ -0,0 +1,110 @@
+#ifndef _INTERNAA_ATOMIC_H
+#define _INTERNAA_ATOMIC_H
+
+#include <stdint.h>
+
+static inline int a_ctz_64(uint64_t x)
+{
+	int r;
+	__asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; addl $32,%0\n1:"
+		: "=r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
+	return r;
+}
+
+
+static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
+		: : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) );
+}
+
+static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+{
+	__asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
+		: : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) );
+}
+
+static inline void a_store_l(volatile void *p, long x)
+{
+	__asm__( "movl %1, %0" : "=m"(*(long *)p) : "r"(x) : "memory" );
+}
+
+static inline void a_or_l(volatile void *p, long v)
+{
+	__asm__( "lock ; orl %1, %0"
+		: "=m"(*(long *)p) : "r"(v) );
+}
+
+static inline void *a_cas_p(volatile void *p, void *t, void *s)
+{
+	__asm__( "lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) );
+	return t;
+}
+
+static inline long a_cas_l(volatile void *p, long t, long s)
+{
+	__asm__( "lock ; cmpxchg %3, %1"
+		: "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) );
+	return t;
+}
+
+static inline void *a_swap_p(void *volatile *x, void *v)
+{
+	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*(void **)x) : "0"(v) );
+	return v;
+}
+static inline long a_swap_l(volatile void *x, long v)
+{
+	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*(long *)x) : "0"(v) );
+	return v;
+}
+
+static inline void a_or(volatile void *p, int v)
+{
+	__asm__( "lock ; orl %1, %0"
+		: "=m"(*(int *)p) : "r"(v) );
+}
+
+static inline void a_and(volatile void *p, int v)
+{
+	__asm__( "lock ; andl %1, %0"
+		: "=m"(*(int *)p) : "r"(v) );
+}
+
+static inline int a_swap(volatile int *x, int v)
+{
+	__asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) );
+	return v;
+}
+
+#define a_xchg a_swap
+
+static inline int a_fetch_add(volatile int *x, int v)
+{
+	__asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) );
+	return v;
+}
+
+static inline void a_inc(volatile int *x)
+{
+	__asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) );
+}
+
+static inline void a_dec(volatile int *x)
+{
+	__asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) );
+}
+
+static inline void a_store(volatile int *p, int x)
+{
+	__asm__( "movl %1, %0" : "=m"(*p) : "r"(x) : "memory" );
+}
+
+static inline void a_spin()
+{
+	__asm__ __volatile__( "pause" : : : "memory" );
+}
+
+
+#endif
diff --git a/src/internal/clone.h b/src/internal/clone.h
new file mode 100644
index 00000000..cc84aeb4
--- /dev/null
+++ b/src/internal/clone.h
@@ -0,0 +1,22 @@
+#define CLONE_VM      0x00000100
+#define CLONE_FS      0x00000200
+#define CLONE_FILES   0x00000400
+#define CLONE_SIGHAND 0x00000800
+#define CLONE_PTRACE  0x00002000
+#define CLONE_VFORK   0x00004000
+#define CLONE_PARENT  0x00008000
+#define CLONE_THREAD  0x00010000
+#define CLONE_NEWNS   0x00020000
+#define CLONE_SYSVSEM 0x00040000
+#define CLONE_SETTLS  0x00080000
+#define CLONE_PARENT_SETTID 0x00100000
+#define CLONE_CHILD_CLEARTID 0x00200000
+#define CLONE_DETACHED 0x00400000
+#define CLONE_UNTRACED 0x00800000
+#define CLONE_CHILD_SETTID 0x01000000
+#define CLONE_NEWUTS	0x04000000
+#define CLONE_NEWIPC	0x08000000
+#define CLONE_NEWUSER	0x10000000
+#define CLONE_NEWPID	0x20000000
+#define CLONE_NEWNET	0x40000000
+#define CLONE_IO	0x80000000
diff --git a/src/internal/futex.h b/src/internal/futex.h
new file mode 100644
index 00000000..c0453822
--- /dev/null
+++ b/src/internal/futex.h
@@ -0,0 +1,16 @@
+#ifndef _INTERNAL_FUTEX_H
+#define _INTERNAL_FUTEX_H
+
+#define FUTEX_WAIT		0
+#define FUTEX_WAKE		1
+#define FUTEX_FD		2
+#define FUTEX_REQUEUE		3
+#define FUTEX_CMP_REQUEUE	4
+#define FUTEX_WAKE_OP		5
+#define FUTEX_LOCK_PI		6
+#define FUTEX_UNLOCK_PI		7
+#define FUTEX_TRYLOCK_PI	8
+
+int __futex(volatile int *, int, int, void *);
+
+#endif
diff --git a/src/internal/libc.c b/src/internal/libc.c
new file mode 100644
index 00000000..5e8e9d95
--- /dev/null
+++ b/src/internal/libc.c
@@ -0,0 +1,3 @@
+#include "libc.h"
+
+struct libc libc;
diff --git a/src/internal/libc.h b/src/internal/libc.h
new file mode 100644
index 00000000..e353f363
--- /dev/null
+++ b/src/internal/libc.h
@@ -0,0 +1,43 @@
+#ifndef LIBC_H
+#define LIBC_H
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#define libc __libc
+extern struct libc {
+	void (*lock)(volatile int *);
+	void (*cancelpt)(int);
+	int (*atexit)(void (*)(void));
+	void (*fini)(void);
+	void (*ldso_fini)(void);
+	int *(*errno_location)(void);
+	volatile int threads_minus_1;
+	int (*rsyscall)(int, long, long, long, long, long, long);
+	void (**tsd_keys)(void *);
+} libc;
+
+
+/* Designed to avoid any overhead in non-threaded processes */
+void __lock(volatile int *);
+#define LOCK(x) (libc.threads_minus_1 ? (__lock(x),1) : ((void)(x),1))
+#define UNLOCK(x) (*(x)=0)
+#define CANCELPT(x) (libc.cancelpt ? libc.cancelpt((x)),0 : (void)(x),0)
+#define CANCELPT_BEGIN CANCELPT(1)
+#define CANCELPT_END CANCELPT(0)
+
+extern char **__environ;
+#define environ __environ
+
+#undef weak_alias
+#define weak_alias(old, new) \
+	extern __typeof(old) new __attribute__((weak, alias(#old)))
+
+#undef LFS64_2
+//#define LFS64_2(x, y) weak_alias(x, y)
+#define LFS64_2(x, y) extern __typeof(x) y
+
+#undef LFS64
+#define LFS64(x) LFS64_2(x, x##64)
+
+#endif
diff --git a/src/internal/locale_impl.h b/src/internal/locale_impl.h
new file mode 100644
index 00000000..c268124f
--- /dev/null
+++ b/src/internal/locale_impl.h
@@ -0,0 +1,5 @@
+#include <locale.h>
+
+struct __locale {
+	int dummy;
+};
diff --git a/src/internal/pthread_impl.h b/src/internal/pthread_impl.h
new file mode 100644
index 00000000..b7892103
--- /dev/null
+++ b/src/internal/pthread_impl.h
@@ -0,0 +1,68 @@
+#ifndef _PTHREAD_IMPL_H
+#define _PTHREAD_IMPL_H
+
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <limits.h>
+#include <inttypes.h>
+#include <setjmp.h>
+#include <string.h>
+#include <time.h>
+#include "libc.h"
+#include "syscall.h"
+#include "atomic.h"
+#include "futex.h"
+
+#define pthread __pthread
+
+struct pthread {
+	struct pthread *self, *join;
+	int errno_val;
+	pid_t tid, pid;
+	volatile int canceldisable, cancelasync, cancelpoint, cancel;
+	unsigned char *map_base;
+	size_t map_size;
+	void *start_arg;
+	void *(*start)(void *);
+	void *result;
+	jmp_buf exit_jmp_buf;
+	int detached;
+	int exitlock;
+	unsigned long tlsdesc[4];
+	struct __ptcb *cancelbuf;
+	void **tsd;
+	int tsd_used;
+	pthread_attr_t attr;
+	int *errno_ptr;
+};
+
+static inline struct pthread *__pthread_self()
+{
+	struct pthread *self;
+	__asm__ ("movl %%gs:0,%0" : "=r" (self) );
+	return self;
+}
+
+#define SIGCANCEL 32
+#define SIGSYSCALL 33
+#define SIGTIMER  32 /* ?? */
+
+int __set_thread_area(unsigned long *);
+int __set_pthread_self(void *);
+int __libc_sigaction(int, const struct sigaction *, struct sigaction *);
+int __libc_sigprocmask(int, const sigset_t *, sigset_t *);
+void __lock(volatile int *);
+void __unmapself(void *, size_t);
+
+int __timedwait(volatile int *, int, clockid_t, const struct timespec *, int);
+void __wait(volatile int *, volatile int *, int, int);
+void __wake(volatile int *, int, int);
+
+#define DEFAULT_STACK_SIZE (16384-PAGE_SIZE)
+#define DEFAULT_GUARD_SIZE PAGE_SIZE
+
+#endif
diff --git a/src/internal/stdio_impl.h b/src/internal/stdio_impl.h
new file mode 100644
index 00000000..1e9159f6
--- /dev/null
+++ b/src/internal/stdio_impl.h
@@ -0,0 +1,100 @@
+#ifndef _STDIO_IMPL_H
+#define _STDIO_IMPL_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <string.h>
+#include <inttypes.h>
+#include <wchar.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <ctype.h>
+#include <sys/wait.h>
+#include <math.h>
+#include <float.h>
+#include "syscall.h"
+#include "libc.h"
+
+#define UNGET 4
+
+#define FLOCK(f) LOCK(&f->lock)
+#define FUNLOCK(f) UNLOCK(&f->lock)
+
+#define F_PERM 1
+#define F_NORD 4
+#define F_NOWR 8
+#define F_EOF 16
+#define F_ERR 32
+
+struct __FILE_s {
+	unsigned flags;
+	unsigned char *rpos, *rstop;
+	unsigned char *rend, *wend;
+	unsigned char *wpos, *wstop;
+	unsigned char *wbase;
+	unsigned char *dummy01[3];
+	unsigned char *buf;
+	size_t buf_size;
+	FILE *prev, *next;
+	int fd;
+	int pipe_pid;
+	long dummy2;
+	short dummy3;
+	char dummy4;
+	signed char lbf;
+	int lock;
+	int lockcount;
+	void *owner;
+	off_t off;
+	int (*flush)(FILE *);
+	void **wide_data; /* must be NULL */
+	size_t (*read)(FILE *, unsigned char *, size_t);
+	size_t (*write)(FILE *, const unsigned char *, size_t);
+	off_t (*seek)(FILE *, off_t, int);
+	int mode;
+	int (*close)(FILE *);
+};
+
+size_t __stdio_read(FILE *, unsigned char *, size_t);
+size_t __stdio_write(FILE *, const unsigned char *, size_t);
+off_t __stdio_seek(FILE *, off_t, int);
+int __stdio_close(FILE *);
+
+int __overflow(FILE *, int);
+int __oflow(FILE *);
+int __uflow(FILE *);
+int __underflow(FILE *);
+
+int __fseeko(FILE *, off_t, int);
+int __fseeko_unlocked(FILE *, off_t, int);
+off_t __ftello(FILE *);
+off_t __ftello_unlocked(FILE *);
+size_t __fwritex(const unsigned char *, size_t, FILE *);
+int __putc_unlocked(int, FILE *);
+
+FILE *__fdopen(int, const char *);
+
+extern struct ofl
+{
+	FILE *head;
+	int lock;
+} __ofl;
+
+#define OFLLOCK() LOCK(&__ofl.lock)
+#define OFLUNLOCK() UNLOCK(&__ofl.lock)
+#define ofl_head (__ofl.head)
+
+#define feof(f) ((f)->flags & F_EOF)
+#define ferror(f) ((f)->flags & F_ERR)
+
+/* Caller-allocated FILE * operations */
+FILE *__fopen_rb_ca(const char *, FILE *, unsigned char *, size_t);
+int __fclose_ca(FILE *);
+
+#endif
diff --git a/src/internal/syscall.c b/src/internal/syscall.c
new file mode 100644
index 00000000..4f159e0b
--- /dev/null
+++ b/src/internal/syscall.c
@@ -0,0 +1,11 @@
+#include <errno.h>
+#include <unistd.h>
+
+long __syscall_ret(unsigned long r)
+{
+	if (r >= (unsigned long)-1 - 4096) {
+		errno = -(long)r;
+		return -1;
+	}
+	return (long)r;
+}
diff --git a/src/internal/syscall.h b/src/internal/syscall.h
new file mode 100644
index 00000000..4b3c0a73
--- /dev/null
+++ b/src/internal/syscall.h
@@ -0,0 +1,469 @@
+#ifndef _SYSCALL_H
+#define _SYSCALL_H
+
+#define SYSCALL_LL(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_SIGSET_SIZE 8
+
+#if defined(SYSCALL_STANDALONE)
+#include <errno.h>
+static inline long __syscall_ret(unsigned long r)
+{
+	if (r >= (unsigned long)-1 - 4096) {
+		errno = -(long)r;
+		return -1;
+	}
+	return (long)r;
+}
+#elif defined(SYSCALL_NORETURN)
+static inline long __syscall_ret(unsigned long r)
+{
+	for(;;);
+	return 0;
+}
+#elif defined(SYSCALL_RETURN_ERRNO)
+static inline long __syscall_ret(unsigned long r)
+{
+	return -r;
+}
+#else
+extern long __syscall_ret(unsigned long);
+#endif
+
+#define SYSCALL0 "int $128"
+
+#ifdef __PIC__
+#define SYSCALL "xchgl %%ebx,%2\n\t" SYSCALL0 "\n\txchgl %%ebx,%2"
+#define EBX "m"
+#else
+#define SYSCALL SYSCALL0
+#define EBX "b"
+#endif
+
+static inline long syscall0(long n)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL0 : "=a"(ret) : "a"(n) : "memory");
+	return __syscall_ret(ret);
+}
+
+static inline long syscall1(long n, long a1)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL : "=a"(ret) : "a"(n), EBX(a1) : "memory");
+	return __syscall_ret(ret);
+}
+
+static inline long syscall2(long n, long a1, long a2)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL : "=a"(ret) : "a"(n), EBX(a1), "c"(a2) : "memory");
+	return __syscall_ret(ret);
+}
+
+static inline long syscall3(long n, long a1, long a2, long a3)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL : "=a"(ret) : "a"(n), EBX(a1), "c"(a2), "d"(a3) : "memory");
+	return __syscall_ret(ret);
+}
+
+static inline long syscall4(long n, long a1, long a2, long a3, long a4)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL : "=a"(ret) : "a"(n), EBX(a1), "c"(a2), "d"(a3), "S"(a4) : "memory");
+	return __syscall_ret(ret);
+}
+
+static inline long syscall5(long n, long a1, long a2, long a3, long a4, long a5)
+{
+	unsigned long ret;
+	__asm__ __volatile__ (SYSCALL : "=a"(ret) : "a"(n), EBX(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5) : "memory");
+	return __syscall_ret(ret);
+}
+
+#ifdef __PIC__
+/* note: it's probably only safe to use this when a6 is on the stack */
+static inline long syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("xchgl %%ebx,%2 ; pushl %1 ; pushl %%ebp ; movl %%eax,%%ebp ; movl 4(%%esp),%%eax ; int $128 ; popl %%ebp ; popl %%ecx ; xchgl %%ebx,%2"
+		: "=a"(ret) : "g"(n), EBX(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5), "a"(a6) : "memory");
+	return __syscall_ret(ret);
+}
+#else
+static inline long syscall6(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	unsigned long ret;
+	__asm__ __volatile__ ("pushl %%ebp ; mov %1, %%ebp ; xchg %%ebp, %7 ; int $128 ; popl %%ebp"
+		: "=a"(ret) : "g"(n), EBX(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5), "a"(a6) : "memory");
+	return __syscall_ret(ret);
+}
+#endif
+
+#define __NR_restart_syscall      0
+#define __NR_exit		  1
+#define __NR_fork		  2
+#define __NR_read		  3
+#define __NR_write		  4
+#define __NR_open		  5
+#define __NR_close		  6
+#define __NR_waitpid		  7
+#define __NR_creat		  8
+#define __NR_link		  9
+#define __NR_unlink		 10
+#define __NR_execve		 11
+#define __NR_chdir		 12
+#define __NR_time		 13
+#define __NR_mknod		 14
+#define __NR_chmod		 15
+#define __NR_lchown		 16
+#define __NR_break		 17
+#define __NR_oldstat		 18
+#define __NR_lseek		 19
+#define __NR_getpid		 20
+#define __NR_mount		 21
+#define __NR_umount		 22
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_ptrace		 26
+#define __NR_alarm		 27
+#define __NR_oldfstat		 28
+#define __NR_pause		 29
+#define __NR_utime		 30
+#define __NR_stty		 31
+#define __NR_gtty		 32
+#define __NR_access		 33
+#define __NR_nice		 34
+#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_umount2		 52
+#define __NR_lock		 53
+#define __NR_ioctl		 54
+#define __NR_fcntl		 55
+#define __NR_mpx		 56
+#define __NR_setpgid		 57
+#define __NR_ulimit		 58
+#define __NR_oldolduname	 59
+#define __NR_umask		 60
+#define __NR_chroot		 61
+#define __NR_ustat		 62
+#define __NR_dup2		 63
+#define __NR_getppid		 64
+#define __NR_getpgrp		 65
+#define __NR_setsid		 66
+#define __NR_sigaction		 67
+#define __NR_sgetmask		 68
+#define __NR_ssetmask		 69
+#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_oldlstat		 84
+#define __NR_readlink		 85
+#define __NR_uselib		 86
+#define __NR_swapon		 87
+#define __NR_reboot		 88
+#define __NR_readdir		 89
+#define __NR_mmap		 90
+#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_socketcall		102
+#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_olduname		109
+#define __NR_iopl		110
+#define __NR_vhangup		111
+#define __NR_idle		112
+#define __NR_vm86old		113
+#define __NR_wait4		114
+#define __NR_swapoff		115
+#define __NR_sysinfo		116
+#define __NR_ipc		117
+#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_sigprocmask	126
+#define __NR_create_module	127
+#define __NR_init_module	128
+#define __NR_delete_module	129
+#define __NR_get_kernel_syms	130
+#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_afs_syscall	137
+#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_getsid		147
+#define __NR_fdatasync		148
+#define __NR__sysctl		149
+#define __NR_mlock		150
+#define __NR_munlock		151
+#define __NR_mlockall		152
+#define __NR_munlockall		153
+#define __NR_sched_setparam		154
+#define __NR_sched_getparam		155
+#define __NR_sched_setscheduler		156
+#define __NR_sched_getscheduler		157
+#define __NR_sched_yield		158
+#define __NR_sched_get_priority_max	159
+#define __NR_sched_get_priority_min	160
+#define __NR_sched_rr_get_interval	161
+#define __NR_nanosleep		162
+#define __NR_mremap		163
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_vm86		166
+#define __NR_query_module	167
+#define __NR_poll		168
+#define __NR_nfsservctl		169
+#define __NR_setresgid		170
+#define __NR_getresgid		171
+#define __NR_prctl              172
+#define __NR_rt_sigreturn	173
+#define __NR_rt_sigaction	174
+#define __NR_rt_sigprocmask	175
+#define __NR_rt_sigpending	176
+#define __NR_rt_sigtimedwait	177
+#define __NR_rt_sigqueueinfo	178
+#define __NR_rt_sigsuspend	179
+#define __NR_pread64		180
+#define __NR_pwrite64		181
+#define __NR_chown		182
+#define __NR_getcwd		183
+#define __NR_capget		184
+#define __NR_capset		185
+#define __NR_sigaltstack	186
+#define __NR_sendfile		187
+#define __NR_getpmsg		188
+#define __NR_putpmsg		189
+#define __NR_vfork		190
+#define __NR_ugetrlimit		191
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#define __NR_lchown32		198
+#define __NR_getuid32		199
+#define __NR_getgid32		200
+#define __NR_geteuid32		201
+#define __NR_getegid32		202
+#define __NR_setreuid32		203
+#define __NR_setregid32		204
+#define __NR_getgroups32	205
+#define __NR_setgroups32	206
+#define __NR_fchown32		207
+#define __NR_setresuid32	208
+#define __NR_getresuid32	209
+#define __NR_setresgid32	210
+#define __NR_getresgid32	211
+#define __NR_chown32		212
+#define __NR_setuid32		213
+#define __NR_setgid32		214
+#define __NR_setfsuid32		215
+#define __NR_setfsgid32		216
+#define __NR_pivot_root		217
+#define __NR_mincore		218
+#define __NR_madvise		219
+#define __NR_madvise1		219
+#define __NR_getdents64		220
+#define __NR_fcntl64		221
+/* 223 is unused */
+#define __NR_gettid		224
+#define __NR_readahead		225
+#define __NR_setxattr		226
+#define __NR_lsetxattr		227
+#define __NR_fsetxattr		228
+#define __NR_getxattr		229
+#define __NR_lgetxattr		230
+#define __NR_fgetxattr		231
+#define __NR_listxattr		232
+#define __NR_llistxattr		233
+#define __NR_flistxattr		234
+#define __NR_removexattr	235
+#define __NR_lremovexattr	236
+#define __NR_fremovexattr	237
+#define __NR_tkill		238
+#define __NR_sendfile64		239
+#define __NR_futex		240
+#define __NR_sched_setaffinity	241
+#define __NR_sched_getaffinity	242
+#define __NR_set_thread_area	243
+#define __NR_get_thread_area	244
+#define __NR_io_setup		245
+#define __NR_io_destroy		246
+#define __NR_io_getevents	247
+#define __NR_io_submit		248
+#define __NR_io_cancel		249
+#define __NR_fadvise64		250
+/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
+#define __NR_exit_group		252
+#define __NR_lookup_dcookie	253
+#define __NR_epoll_create	254
+#define __NR_epoll_ctl		255
+#define __NR_epoll_wait		256
+#define __NR_remap_file_pages	257
+#define __NR_set_tid_address	258
+#define __NR_timer_create	259
+#define __NR_timer_settime	(__NR_timer_create+1)
+#define __NR_timer_gettime	(__NR_timer_create+2)
+#define __NR_timer_getoverrun	(__NR_timer_create+3)
+#define __NR_timer_delete	(__NR_timer_create+4)
+#define __NR_clock_settime	(__NR_timer_create+5)
+#define __NR_clock_gettime	(__NR_timer_create+6)
+#define __NR_clock_getres	(__NR_timer_create+7)
+#define __NR_clock_nanosleep	(__NR_timer_create+8)
+#define __NR_statfs64		268
+#define __NR_fstatfs64		269
+#define __NR_tgkill		270
+#define __NR_utimes		271
+#define __NR_fadvise64_64	272
+#define __NR_vserver		273
+#define __NR_mbind		274
+#define __NR_get_mempolicy	275
+#define __NR_set_mempolicy	276
+#define __NR_mq_open 		277
+#define __NR_mq_unlink		(__NR_mq_open+1)
+#define __NR_mq_timedsend	(__NR_mq_open+2)
+#define __NR_mq_timedreceive	(__NR_mq_open+3)
+#define __NR_mq_notify		(__NR_mq_open+4)
+#define __NR_mq_getsetattr	(__NR_mq_open+5)
+#define __NR_kexec_load		283
+#define __NR_waitid		284
+/* #define __NR_sys_setaltroot	285 */
+#define __NR_add_key		286
+#define __NR_request_key	287
+#define __NR_keyctl		288
+#define __NR_ioprio_set		289
+#define __NR_ioprio_get		290
+#define __NR_inotify_init	291
+#define __NR_inotify_add_watch	292
+#define __NR_inotify_rm_watch	293
+#define __NR_migrate_pages	294
+#define __NR_openat		295
+#define __NR_mkdirat		296
+#define __NR_mknodat		297
+#define __NR_fchownat		298
+#define __NR_futimesat		299
+#define __NR_fstatat64		300
+#define __NR_unlinkat		301
+#define __NR_renameat		302
+#define __NR_linkat		303
+#define __NR_symlinkat		304
+#define __NR_readlinkat		305
+#define __NR_fchmodat		306
+#define __NR_faccessat		307
+#define __NR_pselect6		308
+#define __NR_ppoll		309
+#define __NR_unshare		310
+#define __NR_set_robust_list	311
+#define __NR_get_robust_list	312
+#define __NR_splice		313
+#define __NR_sync_file_range	314
+#define __NR_tee		315
+#define __NR_vmsplice		316
+#define __NR_move_pages		317
+#define __NR_getcpu		318
+#define __NR_epoll_pwait	319
+#define __NR_utimensat		320
+#define __NR_signalfd		321
+#define __NR_timerfd_create	322
+#define __NR_eventfd		323
+#define __NR_fallocate		324
+#define __NR_timerfd_settime	325
+#define __NR_timerfd_gettime	326
+#define __NR_signalfd4		327
+#define __NR_eventfd2		328
+#define __NR_epoll_create1	329
+#define __NR_dup3		330
+#define __NR_pipe2		331
+#define __NR_inotify_init1	332
+#define __NR_preadv		333
+#define __NR_pwritev		334
+
+
+#undef O_LARGEFILE
+#define O_LARGEFILE 0100000
+
+/* the following are needed for iso c functions to use */
+#define __syscall_open(filename, flags, mode) syscall3(__NR_open, (long)(filename), (flags)|O_LARGEFILE, (mode))
+#define __syscall_read(fd, buf, len)          syscall3(__NR_read, (fd), (long)(buf), (len))
+#define __syscall_write(fd, buf, len)         syscall3(__NR_write, (fd), (long)(buf), (len))
+#define __syscall_close(fd)                   syscall1(__NR_close, (fd))
+#define __syscall_fcntl(fd, cmd, arg)         syscall3(__NR_fcntl64, (fd), (cmd), (long)(arg))
+#define __syscall_dup2(old, new)              syscall2(__NR_dup2, (old), (new))
+#define __syscall_unlink(path)                syscall1(__NR_unlink, (long)(path))
+#define __syscall_getpid()                    syscall0(__NR_getpid)
+#define __syscall_kill(pid,sig)               syscall2(__NR_kill, (pid), (sig))
+#define __syscall_sigaction(sig,new,old)      syscall4(__NR_rt_sigaction, (sig), (long)(new), (long)(old), SYSCALL_SIGSET_SIZE)
+#define __syscall_ioctl(fd,ioc,arg)           syscall3(__NR_ioctl, (fd), (ioc), (long)(arg))
+#define __syscall_exit(code)                  syscall1(__NR_exit, code)
+
+#define __NEED_off_t
+#include <bits/alltypes.h>
+
+static inline off_t __syscall_lseek(int fd, off_t offset, int whence)
+{
+	off_t result;
+	return syscall5(__NR__llseek, fd, offset>>32, offset, (long)&result, whence) ? -1 : result;
+}
+
+#endif
diff --git a/src/internal/util.h b/src/internal/util.h
new file mode 100644
index 00000000..7c7c3a17
--- /dev/null
+++ b/src/internal/util.h
@@ -0,0 +1,5 @@
+#ifndef _INTERNAL_UTIL_H
+#define _INTERNAL_UTIL_H
+
+
+#endif