Merge changes between r18362 and r18392 from /fsf/trunk.

git-svn-id: svn://svn.eglibc.org/trunk@18393 7b3dc134-2b1b-0410-93df-9e9f96275f8d

34 files changed, 242 insertions, 864 deletions

diff --git a/libc/sysdeps/i386/fpu/e_expl.S b/libc/sysdeps/i386/fpu/e_expl.S
new file mode 100644
index 000000000..45c4d0753
--- /dev/null
+++ b/libc/sysdeps/i386/fpu/e_expl.S
@@ -0,0 +1,109 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ */
+
+/*
+ * The 8087 method for the exponential function is to calculate
+ *   exp(x) = 2^(x log2(e))
+ * after separating integer and fractional parts
+ *   x log2(e) = i + f, |f| <= .5
+ * 2^i is immediate but f needs to be precise for long double accuracy.
+ * Suppress range reduction error in computing f by the following.
+ * Separate x into integer and fractional parts
+ *   x = xi + xf, |xf| <= .5
+ * Separate log2(e) into the sum of an exact number c0 and small part c1.
+ *   c0 + c1 = log2(e) to extra precision
+ * Then
+ *   f = (c0 xi - i) + c0 xf + c1 x
+ * where c0 xi is exact and so also is (c0 xi - i).
+ * -- moshier@na-net.ornl.gov
+ */
+
+#include <machine/asm.h>
+
+	.section .rodata.cst16,"aM",@progbits,16
+
+	.p2align 4
+	ASM_TYPE_DIRECTIVE(c0,@object)
+c0:	.byte 0, 0, 0, 0, 0, 0, 0xaa, 0xb8, 0xff, 0x3f
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(c0)
+	ASM_TYPE_DIRECTIVE(c1,@object)
+c1:	.byte 0x20, 0xfa, 0xee, 0xc2, 0x5f, 0x70, 0xa5, 0xec, 0xed, 0x3f
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(c1)
+	ASM_TYPE_DIRECTIVE(csat,@object)
+csat:	.byte 0, 0, 0, 0, 0, 0, 0, 0x80, 0x0e, 0x40
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(csat)
+
+#ifdef PIC
+# define MO(op) op##@GOTOFF(%ecx)
+#else
+# define MO(op) op
+#endif
+
+	.text
+ENTRY(__ieee754_expl)
+	fldt	4(%esp)
+/* I added the following ugly construct because expl(+-Inf) resulted
+   in NaN.  The ugliness results from the bright minds at Intel.
+   For the i686 the code can be written better.
+   -- drepper@cygnus.com.  */
+	fxam			/* Is NaN or +-Inf?  */
+#ifdef PIC
+	LOAD_PIC_REG (cx)
+#endif
+	movzwl	4+8(%esp), %eax
+	andl	$0x7fff, %eax
+	cmpl	$0x400d, %eax
+	jle	3f
+	/* Overflow, underflow or infinity or NaN as argument.  */
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	1f		/* Is +-Inf, jump.    */
+	cmpb	$0x01, %dh
+	je	2f		/* Is +-NaN, jump.    */
+	/* Overflow or underflow; saturate.  */
+	fstp	%st
+	fldt	MO(csat)
+	andb	$2, %ah
+	jz	3f
+	fchs
+3:	fldl2e			/* 1  log2(e)         */
+	fmul	%st(1), %st	/* 1  x log2(e)       */
+	frndint			/* 1  i               */
+	fld	%st(1)		/* 2  x               */
+	frndint			/* 2  xi              */
+	fld	%st(1)		/* 3  i               */
+	fldt	MO(c0)		/* 4  c0              */
+	fld	%st(2)		/* 5  xi              */
+	fmul	%st(1), %st	/* 5  c0 xi           */
+	fsubp	%st, %st(2)	/* 4  f = c0 xi  - i  */
+	fld	%st(4)		/* 5  x               */
+	fsub	%st(3), %st	/* 5  xf = x - xi     */
+	fmulp	%st, %st(1)	/* 4  c0 xf           */
+	faddp	%st, %st(1)	/* 3  f = f + c0 xf   */
+	fldt	MO(c1)		/* 4                  */
+	fmul	%st(4), %st	/* 4  c1 * x          */
+	faddp	%st, %st(1)	/* 3  f = f + c1 * x  */
+	f2xm1			/* 3 2^(fract(x * log2(e))) - 1 */
+	fld1			/* 4 1.0              */
+	faddp			/* 3 2^(fract(x * log2(e))) */
+	fstp	%st(1)		/* 2  */
+	fscale			/* 2 scale factor is st(1); e^x */
+	fstp	%st(1)		/* 1  */
+	fstp	%st(1)		/* 0  */
+	jmp	2f
+1:	testl	$0x200, %eax	/* Test sign.  */
+	jz	2f		/* If positive, jump.  */
+	fstp	%st
+	fldz			/* Set result to 0.  */
+2:	ret
+END(__ieee754_expl)
+strong_alias (__ieee754_expl, __expl_finite)
diff --git a/libc/sysdeps/i386/fpu/e_expl.c b/libc/sysdeps/i386/fpu/e_expl.c
deleted file mode 100644
index 8dc9581f7..000000000
--- a/libc/sysdeps/i386/fpu/e_expl.c
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Written by J.T. Conklin <jtc@netbsd.org>.
- * Public domain.
- *
- * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
- */
-
-/*
- * The 8087 method for the exponential function is to calculate
- *   exp(x) = 2^(x log2(e))
- * after separating integer and fractional parts
- *   x log2(e) = i + f, |f| <= .5
- * 2^i is immediate but f needs to be precise for long double accuracy.
- * Suppress range reduction error in computing f by the following.
- * Separate x into integer and fractional parts
- *   x = xi + xf, |xf| <= .5
- * Separate log2(e) into the sum of an exact number c0 and small part c1.
- *   c0 + c1 = log2(e) to extra precision
- * Then
- *   f = (c0 xi - i) + c0 xf + c1 x
- * where c0 xi is exact and so also is (c0 xi - i).
- * -- moshier@na-net.ornl.gov
- */
-
-#include <math_private.h>
-
-static const long double c0 = 1.44268798828125L;
-static const long double c1 = 7.05260771340735992468e-6L;
-
-long double
-__ieee754_expl (long double x)
-{
-  long double res;
-
-/* I added the following ugly construct because expl(+-Inf) resulted
-   in NaN.  The ugliness results from the bright minds at Intel.
-   For the i686 the code can be written better.
-   -- drepper@cygnus.com.  */
-  asm ("fxam\n\t"		/* Is NaN or +-Inf?  */
-       "fstsw	%%ax\n\t"
-       "movb	$0x45, %%dh\n\t"
-       "andb	%%ah, %%dh\n\t"
-       "cmpb	$0x05, %%dh\n\t"
-       "je	1f\n\t"		/* Is +-Inf, jump.    */
-       "fldl2e\n\t"             /* 1  log2(e)         */
-       "fmul %%st(1),%%st\n\t"  /* 1  x log2(e)       */
-       "frndint\n\t"            /* 1  i               */
-       "fld %%st(1)\n\t"        /* 2  x               */
-       "frndint\n\t"            /* 2  xi              */
-       "fld %%st(1)\n\t"        /* 3  i               */
-       "fldt %2\n\t"            /* 4  c0              */
-       "fld %%st(2)\n\t"        /* 5  xi              */
-       "fmul %%st(1),%%st\n\t"  /* 5  c0 xi           */
-       "fsubp %%st,%%st(2)\n\t" /* 4  f = c0 xi  - i  */
-       "fld %%st(4)\n\t"        /* 5  x               */
-       "fsub %%st(3),%%st\n\t"  /* 5  xf = x - xi     */
-       "fmulp %%st,%%st(1)\n\t" /* 4  c0 xf           */
-       "faddp %%st,%%st(1)\n\t" /* 3  f = f + c0 xf   */
-       "fldt %3\n\t"            /* 4                  */
-       "fmul %%st(4),%%st\n\t"  /* 4  c1 * x          */
-       "faddp %%st,%%st(1)\n\t" /* 3  f = f + c1 * x  */
-       "f2xm1\n\t"		/* 3 2^(fract(x * log2(e))) - 1 */
-       "fld1\n\t"               /* 4 1.0              */
-       "faddp\n\t"		/* 3 2^(fract(x * log2(e))) */
-       "fstp	%%st(1)\n\t"    /* 2  */
-       "fscale\n\t"		/* 2 scale factor is st(1); e^x */
-       "fstp	%%st(1)\n\t"    /* 1  */
-       "fstp	%%st(1)\n\t"    /* 0  */
-       "jmp 2f\n\t"
-       "1:\ttestl	$0x200, %%eax\n\t"	/* Test sign.  */
-       "jz	2f\n\t"		/* If positive, jump.  */
-       "fstp	%%st\n\t"
-       "fldz\n\t"		/* Set result to 0.  */
-       "2:\t\n"
-       : "=t" (res) : "0" (x), "m" (c0), "m" (c1) : "ax", "dx");
-  return res;
-}
-strong_alias (__ieee754_expl, __expl_finite)
diff --git a/libc/sysdeps/ieee754/dbl-64/w_exp.c b/libc/sysdeps/ieee754/dbl-64/w_exp.c
index aa8ff7689..14328a7b4 100644
--- a/libc/sysdeps/ieee754/dbl-64/w_exp.c
+++ b/libc/sysdeps/ieee754/dbl-64/w_exp.c
@@ -19,27 +19,16 @@
 #include <math.h>
 #include <math_private.h>
 
-static const double
-o_threshold=  7.09782712893383973096e+02,  /* 0x40862E42, 0xFEFA39EF */
-u_threshold= -7.45133219101941108420e+02;  /* 0xc0874910, 0xD52D3051 */
-
-
 /* wrapper exp */
 double
 __exp (double x)
 {
-  if (__builtin_expect (isgreater (x, o_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard (x, x, 6);
-    }
-  else if (__builtin_expect (isless (x, u_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard (x, x, 7);
-    }
+  double z = __ieee754_exp (x);
+  if (__builtin_expect (!__finite (z) || z == 0, 0)
+      && __finite (x) && _LIB_VERSION != _IEEE_)
+    return __kernel_standard (x, x, 6 + !!__signbit (x));
 
-  return __ieee754_exp (x);
+  return z;
 }
 hidden_def (__exp)
 weak_alias (__exp, exp)
diff --git a/libc/sysdeps/ieee754/flt-32/w_expf.c b/libc/sysdeps/ieee754/flt-32/w_expf.c
index bc3b2f679..bfef9e4d2 100644
--- a/libc/sysdeps/ieee754/flt-32/w_expf.c
+++ b/libc/sysdeps/ieee754/flt-32/w_expf.c
@@ -19,27 +19,16 @@
 #include <math.h>
 #include <math_private.h>
 
-static const float
-o_threshold=  8.8722831726e+01,  /* 0x42b17217 */
-u_threshold= -1.0397208405e+02;  /* 0xc2cff1b5 */
-
-
 /* wrapper expf */
 float
 __expf (float x)
 {
-  if (__builtin_expect (isgreater (x, o_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard_f (x, x, 106);
-    }
-  else if (__builtin_expect (isless (x, u_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard_f (x, x, 107);
-    }
+  float z = __ieee754_expf (x);
+  if (__builtin_expect (!__finitef (z) || z == 0, 0)
+      && __finitef (x) && _LIB_VERSION != _IEEE_)
+    return __kernel_standard_f (x, x, 106 + !!__signbitf (x));
 
-  return __ieee754_expf (x);
+  return z;
 }
 hidden_def (__expf)
 weak_alias (__expf, expf)
diff --git a/libc/sysdeps/ieee754/ldbl-96/w_expl.c b/libc/sysdeps/ieee754/ldbl-96/w_expl.c
index 55c68462b..79b10c575 100644
--- a/libc/sysdeps/ieee754/ldbl-96/w_expl.c
+++ b/libc/sysdeps/ieee754/ldbl-96/w_expl.c
@@ -19,29 +19,16 @@
 #include <math.h>
 #include <math_private.h>
 
-static const long double
-o_threshold=  1.135652340629414394949193107797076489134e4,
-  /* 0x400C, 0xB17217F7, 0xD1CF79AC */
-u_threshold= -1.140019167866942050398521670162263001513e4;
-  /* 0x400C, 0xB220C447, 0x69C201E8 */
-
-
 /* wrapper expl */
 long double
 __expl (long double x)
 {
-  if (__builtin_expect (isgreater (x, o_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard_l (x, x, 206);
-    }
-  else if (__builtin_expect (isless (x, u_threshold), 0))
-    {
-      if (_LIB_VERSION != _IEEE_)
-	return __kernel_standard_l (x, x, 207);
-    }
+  long double z = __ieee754_expl (x);
+  if (__builtin_expect (!__finitel (z) || z == 0, 0)
+      && __finitel (x) && _LIB_VERSION != _IEEE_)
+    return __kernel_standard_l (x, x, 206 + !!__signbitl (x));
 
-  return __ieee754_expl (x);
+  return z;
 }
 hidden_def (__expl)
 weak_alias (__expl, expl)
diff --git a/libc/sysdeps/unix/bsd/Implies b/libc/sysdeps/unix/bsd/Implies
index cfc44915d..c30979e17 100644
--- a/libc/sysdeps/unix/bsd/Implies
+++ b/libc/sysdeps/unix/bsd/Implies
@@ -1,5 +1,2 @@
-# The directory unix/common contains things which are common to both BSD
-# and SVR4.
-unix/common
 # The directory unix/inet implements sockets and networking in the usual way.
 unix/inet
diff --git a/libc/sysdeps/unix/bsd/bits/dirent.h b/libc/sysdeps/unix/bsd/bits/dirent.h
deleted file mode 100644
index e56efc43b..000000000
--- a/libc/sysdeps/unix/bsd/bits/dirent.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Directory entry structure `struct dirent'.  4.2BSD version.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _DIRENT_H
-# error "Never use <bits/dirent.h> directly; include <dirent.h> instead."
-#endif
-
-struct dirent
-  {
-    unsigned int d_fileno;	/* 32 bits.  */
-    unsigned short int d_reclen; /* 16 bits.  */
-    unsigned short int d_namlen; /* 16 bits.  */
-    char d_name[1];		/* Variable length.  */
-  };
-
-#define _DIRENT_HAVE_D_RECLEN 1
-#define _DIRENT_HAVE_D_NAMLEN 1
diff --git a/libc/sysdeps/unix/bsd/bits/fcntl.h b/libc/sysdeps/unix/bsd/bits/fcntl.h
deleted file mode 100644
index df93999e7..000000000
--- a/libc/sysdeps/unix/bsd/bits/fcntl.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/* O_*, F_*, FD_* bit values for 4.3 BSD.
-   Copyright (C) 1991, 1992, 1997, 2004 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef	_FCNTL_H
-# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
-#endif
-
-
-/* File access modes for `open' and `fcntl'.  */
-#define	O_RDONLY	0	/* Open read-only.  */
-#define	O_WRONLY	1	/* Open write-only.  */
-#define	O_RDWR		2	/* Open read/write.  */
-
-
-/* Bits OR'd into the second argument to open.  */
-#define	O_CREAT		0x0200	/* Create file if it doesn't exist.  */
-#define	O_EXCL		0x0800	/* Fail if file already exists.  */
-#define	O_TRUNC		0x0400	/* Truncate file to zero length.  */
-/* Apparently not assigning a controlling terminal is the default
-   behavior in BSD, so no bit is required to request that behavior.  */
-#define	O_NOCTTY	0	/* Don't assign a controlling terminal.  */
-#if defined __USE_BSD || defined __USE_SVID
-# define O_ASYNC		0x0040	/* Send SIGIO to owner when data is ready.  */
-# define O_FSYNC		0x2000	/* Synchronous writes.  */
-# define O_SYNC		O_FSYNC
-#endif
-
-/* File status flags for `open' and `fcntl'.  */
-#define	O_APPEND	0x0008	/* Writes append to the file.  */
-#define	O_NONBLOCK	0x0004	/* Non-blocking I/O.  */
-
-#ifdef __USE_BSD
-/* BSD before 4.4 doesn't support POSIX.1 O_NONBLOCK,
-   but O_NDELAY is close.  */
-# define O_NDELAY	O_NONBLOCK
-#endif
-
-#ifdef __USE_BSD
-/* Bits in the file status flags returned by F_GETFL.
-   These are all the O_* flags, plus FREAD and FWRITE, which are
-   independent bits set by which of O_RDONLY, O_WRONLY, and O_RDWR, was
-   given to `open'.  */
-# define FREAD		1
-# define FWRITE		2
-
-/* Traditional BSD names the O_* bits.  */
-# define FASYNC		O_ASYNC
-# define FCREAT		O_CREAT
-# define FEXCL		O_EXCL
-# define FTRUNC		O_TRUNC
-# define FNOCTTY	O_NOCTTY
-# define FFSYNC		O_FSYNC
-# define FSYNC		O_SYNC
-# define FAPPEND	O_APPEND
-# define FNONBLOCK	O_NONBLOCK
-# define FNDELAY	O_NDELAY
-#endif
-
-/* Mask for file access modes.  This is system-dependent in case
-   some system ever wants to define some other flavor of access.  */
-#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
-
-/* XXX missing */
-#define O_LARGEFILE	0
-
-/* Values for the second argument to `fcntl'.  */
-#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
-#define	F_GETFD		1	/* Get file descriptor flags.  */
-#define	F_SETFD		2	/* Set file descriptor flags.  */
-#define	F_GETFL		3	/* Get file status flags.  */
-#define	F_SETFL		4	/* Set file status flags.  */
-#if defined __USE_BSD || defined __USE_UNIX98
-# define F_GETOWN	5	/* Get owner (receiver of SIGIO).  */
-# define F_SETOWN	6	/* Set owner (receiver of SIGIO).  */
-#endif
-#define	F_GETLK		7	/* Get record locking info.  */
-#define	F_SETLK		8	/* Set record locking info (non-blocking).  */
-#define	F_SETLKW	9	/* Set record locking info (blocking).  */
-
-/* XXX missing */
-#define F_GETLK64	7	/* Get record locking info.  */
-#define F_SETLK64	8	/* Set record locking info (non-blocking).  */
-#define F_SETLKW64	9	/* Set record locking info (blocking).  */
-
-/* File descriptor flags used with F_GETFD and F_SETFD.  */
-#define	FD_CLOEXEC	1	/* Close on exec.  */
-
-
-#include <bits/types.h>
-
-/* The structure describing an advisory lock.  This is the type of the third
-   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
-struct flock
-  {
-    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
-    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
-#ifndef __USE_FILE_OFFSET64
-    __off_t l_start;	/* Offset where the lock begins.  */
-    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
-#else
-    __off64_t l_start;	/* Offset where the lock begins.  */
-    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
-#endif
-    short int l_pid;	/* Process holding the lock.  */
-    short int l_xxx;	/* Reserved for future use.  */
-  };
-
-#ifdef __USE_LARGEFILE64
-struct flock64
-  {
-    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
-    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
-    __off64_t l_start;	/* Offset where the lock begins.  */
-    __off64_t l_len;	/* Size of the locked area; zero means until EOF.  */
-    short int l_pid;	/* Process holding the lock.  */
-    short int l_xxx;	/* Reserved for future use.  */
-  };
-#endif
-
-/* Values for the `l_type' field of a `struct flock'.  */
-#define	F_RDLCK	1	/* Read lock.  */
-#define	F_WRLCK	2	/* Write lock.  */
-#define	F_UNLCK	3	/* Remove lock.  */
diff --git a/libc/sysdeps/unix/bsd/bsd4.4/isatty.c b/libc/sysdeps/unix/bsd/bsd4.4/isatty.c
deleted file mode 100644
index 473368c93..000000000
--- a/libc/sysdeps/unix/bsd/bsd4.4/isatty.c
+++ /dev/null
@@ -1,3 +0,0 @@
-/* In a 4.4-derived world, tcgetattr is just one ioctl.  */
-
-#include <sysdeps/posix/isatty.c>
diff --git a/libc/sysdeps/unix/bsd/isatty.c b/libc/sysdeps/unix/bsd/isatty.c
deleted file mode 100644
index e20b62f71..000000000
--- a/libc/sysdeps/unix/bsd/isatty.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* Copyright (C) 1991,95,96,97,2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-
-/* Return 1 if FD is a terminal, 0 if not.  */
-int
-__isatty (fd)
-     int fd;
-{
-  struct sgttyb term;
-
-  return __ioctl (fd, TIOCGETP, &term) == 0;
-}
-weak_alias (__isatty, isatty)
diff --git a/libc/sysdeps/unix/bsd/tcdrain.c b/libc/sysdeps/unix/bsd/tcdrain.c
deleted file mode 100644
index 5dc03cc30..000000000
--- a/libc/sysdeps/unix/bsd/tcdrain.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Copyright (C) 1991, 1996, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <stddef.h>
-#include <termios.h>
-#include <unistd.h>
-
-#include "bsdtty.h"
-
-/* Wait for pending output to be written on FD.  */
-int
-__libc_tcdrain (int fd)
-{
-  /* The TIOCSETP control waits for pending output to be written before
-     affecting its changes, so we use that without changing anything.  */
-  struct sgttyb b;
-  if (__ioctl (fd, TIOCGETP, (void *) &b) < 0 ||
-      __ioctl (fd, TIOCSETP, (void *) &b) < 0)
-    return -1;
-  return 0;
-}
-weak_alias (__libc_tcdrain, tcdrain)
diff --git a/libc/sysdeps/unix/bsd/tcgetattr.c b/libc/sysdeps/unix/bsd/tcgetattr.c
deleted file mode 100644
index b3a54e390..000000000
--- a/libc/sysdeps/unix/bsd/tcgetattr.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* Copyright (C) 1991, 1992, 1995, 1996, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <stddef.h>
-#include <termios.h>
-
-#include "bsdtty.h"
-
-extern const speed_t __bsd_speeds[]; /* Defined in tcsetattr.c.  */
-
-/* Put the state of FD into *TERMIOS_P.  */
-int
-__tcgetattr (fd, termios_p)
-     int fd;
-     struct termios *termios_p;
-{
-  struct sgttyb buf;
-  struct tchars tchars;
-  struct ltchars ltchars;
-  int local;
-#ifdef	TIOCGETX
-  int extra;
-#endif
-
-  if (termios_p == NULL)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  if (__ioctl(fd, TIOCGETP, &buf) < 0 ||
-      __ioctl(fd, TIOCGETC, &tchars) < 0 ||
-      __ioctl(fd, TIOCGLTC, &ltchars) < 0 ||
-#ifdef	TIOCGETX
-      __ioctl(fd, TIOCGETX, &extra) < 0 ||
-#endif
-      __ioctl(fd, TIOCLGET, &local) < 0)
-    return -1;
-
-  termios_p->__ispeed = __bsd_speeds[(unsigned char) buf.sg_ispeed];
-  termios_p->__ospeed = __bsd_speeds[(unsigned char) buf.sg_ospeed];
-
-  termios_p->c_iflag = 0;
-  termios_p->c_oflag = 0;
-  termios_p->c_cflag = 0;
-  termios_p->c_lflag = 0;
-  termios_p->c_oflag |= CREAD | HUPCL;
-#ifdef	LPASS8
-  if (local & LPASS8)
-    termios_p->c_oflag |= CS8;
-  else
-#endif
-    termios_p->c_oflag |= CS7;
-  if (!(buf.sg_flags & RAW))
-    {
-      termios_p->c_iflag |= IXON;
-      termios_p->c_cflag |= OPOST;
-#ifndef	NOISIG
-      termios_p->c_lflag |= ISIG;
-#endif
-    }
-  if ((buf.sg_flags & (CBREAK|RAW)) == 0)
-    termios_p->c_lflag |= ICANON;
-  if (!(buf.sg_flags & RAW) && !(local & LLITOUT))
-    termios_p->c_oflag |= OPOST;
-  if (buf.sg_flags & CRMOD)
-    termios_p->c_iflag |= ICRNL;
-  if (buf.sg_flags & TANDEM)
-    termios_p->c_iflag |= IXOFF;
-#ifdef	TIOCGETX
-  if (!(extra & NOISIG))
-    termios_p->c_lflag |= ISIG;
-  if (extra & STOPB)
-    termios_p->c_cflag |= CSTOPB;
-#endif
-
-  switch (buf.sg_flags & (EVENP|ODDP))
-    {
-    case EVENP|ODDP:
-      break;
-    case ODDP:
-      termios_p->c_cflag |= PARODD;
-    default:
-      termios_p->c_cflag |= PARENB;
-      termios_p->c_iflag |= IGNPAR | INPCK;
-      break;
-    }
-  if (buf.sg_flags & ECHO)
-    termios_p->c_lflag |= _ECHO;
-  if (local & LCRTERA)
-    termios_p->c_lflag |= ECHOE;
-  if (local & LCRTKIL)
-    termios_p->c_lflag |= ECHOK;
-  if (local & LTOSTOP)
-    termios_p->c_lflag |= _TOSTOP;
-  if (local & LNOFLSH)
-    termios_p->c_lflag |= _NOFLSH;
-
-  termios_p->c_cc[VEOF] = tchars.t_eofc;
-  termios_p->c_cc[VEOL] = '\n';
-  termios_p->c_cc[VERASE] = buf.sg_erase;
-  termios_p->c_cc[VKILL] = buf.sg_kill;
-  termios_p->c_cc[VINTR] = tchars.t_intrc;
-  termios_p->c_cc[VQUIT] = tchars.t_quitc;
-  termios_p->c_cc[VSTART] = tchars.t_startc;
-  termios_p->c_cc[VSTOP] = tchars.t_stopc;
-  termios_p->c_cc[VSUSP] = ltchars.t_suspc;
-  termios_p->c_cc[VMIN] = -1;
-  termios_p->c_cc[VTIME] = -1;
-
-  return 0;
-}
-
-weak_alias (__tcgetattr, tcgetattr)
diff --git a/libc/sysdeps/unix/bsd/tcsetattr.c b/libc/sysdeps/unix/bsd/tcsetattr.c
deleted file mode 100644
index 0741c475e..000000000
--- a/libc/sysdeps/unix/bsd/tcsetattr.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/* Copyright (C) 1991, 1993, 1996, 1997, 2002 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <errno.h>
-#include <stddef.h>
-#include <termios.h>
-
-#include "bsdtty.h"
-
-
-const speed_t __bsd_speeds[] =
-  {
-    0,
-    50,
-    75,
-    110,
-    134,
-    150,
-    200,
-    300,
-    600,
-    1200,
-    1800,
-    2400,
-    4800,
-    9600,
-    19200,
-    38400,
-  };
-
-
-/* Set the state of FD to *TERMIOS_P.  */
-int
-tcsetattr (fd, optional_actions, termios_p)
-     int fd;
-     int optional_actions;
-     const struct termios *termios_p;
-{
-  struct sgttyb buf;
-  struct tchars tchars;
-  struct ltchars ltchars;
-  int local;
-#ifdef	TIOCGETX
-  int extra;
-#endif
-  size_t i;
-
-  if (__ioctl (fd, TIOCGETP, &buf) < 0 ||
-      __ioctl (fd, TIOCGETC, &tchars) < 0 ||
-      __ioctl (fd, TIOCGLTC, &ltchars) < 0 ||
-#ifdef	TIOCGETX
-      __ioctl (fd, TIOCGETX, &extra) < 0 ||
-#endif
-      __ioctl (fd, TIOCLGET, &local) < 0)
-    return -1;
-
-  if (termios_p == NULL)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-  switch (optional_actions)
-    {
-    case TCSANOW:
-      break;
-    case TCSADRAIN:
-      if (tcdrain (fd) < 0)
-	return -1;
-      break;
-    case TCSAFLUSH:
-      if (tcflush (fd, TCIFLUSH) < 0)
-	return -1;
-      break;
-    default:
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  buf.sg_ispeed = buf.sg_ospeed = -1;
-  for (i = 0; i <= sizeof (__bsd_speeds) / sizeof (__bsd_speeds[0]); ++i)
-    {
-      if (__bsd_speeds[i] == termios_p->__ispeed)
-	buf.sg_ispeed = i;
-      if (__bsd_speeds[i] == termios_p->__ospeed)
-	buf.sg_ospeed = i;
-    }
-  if (buf.sg_ispeed == -1 || buf.sg_ospeed == -1)
-    {
-      __set_errno (EINVAL);
-      return -1;
-    }
-
-  buf.sg_flags &= ~(CBREAK|RAW);
-  if (!(termios_p->c_lflag & ICANON))
-    buf.sg_flags |= (termios_p->c_cflag & ISIG) ? CBREAK : RAW;
-#ifdef	LPASS8
-  if (termios_p->c_oflag & CS8)
-    local |= LPASS8;
-  else
-    local &= ~LPASS8;
-#endif
-  if (termios_p->c_lflag & _NOFLSH)
-    local |= LNOFLSH;
-  else
-    local &= ~LNOFLSH;
-  if (termios_p->c_oflag & OPOST)
-    local &= ~LLITOUT;
-  else
-    local |= LLITOUT;
-#ifdef	TIOCGETX
-  if (termios_p->c_lflag & ISIG)
-    extra &= ~NOISIG;
-  else
-    extra |= NOISIG;
-  if (termios_p->c_cflag & CSTOPB)
-    extra |= STOPB;
-  else
-    extra &= ~STOPB;
-#endif
-  if (termios_p->c_iflag & ICRNL)
-    buf.sg_flags |= CRMOD;
-  else
-    buf.sg_flags &= ~CRMOD;
-  if (termios_p->c_iflag & IXOFF)
-    buf.sg_flags |= TANDEM;
-  else
-    buf.sg_flags &= ~TANDEM;
-
-  buf.sg_flags &= ~(ODDP|EVENP);
-  if (!(termios_p->c_cflag & PARENB))
-    buf.sg_flags |= ODDP | EVENP;
-  else if (termios_p->c_cflag & PARODD)
-    buf.sg_flags |= ODDP;
-  else
-    buf.sg_flags |= EVENP;
-
-  if (termios_p->c_lflag & _ECHO)
-    buf.sg_flags |= ECHO;
-  else
-    buf.sg_flags &= ~ECHO;
-  if (termios_p->c_lflag & ECHOE)
-    local |= LCRTERA;
-  else
-    local &= ~LCRTERA;
-  if (termios_p->c_lflag & ECHOK)
-    local |= LCRTKIL;
-  else
-    local &= ~LCRTKIL;
-  if (termios_p->c_lflag & _TOSTOP)
-    local |= LTOSTOP;
-  else
-    local &= ~LTOSTOP;
-
-  buf.sg_erase = termios_p->c_cc[VERASE];
-  buf.sg_kill = termios_p->c_cc[VKILL];
-  tchars.t_eofc = termios_p->c_cc[VEOF];
-  tchars.t_intrc = termios_p->c_cc[VINTR];
-  tchars.t_quitc = termios_p->c_cc[VQUIT];
-  ltchars.t_suspc = termios_p->c_cc[VSUSP];
-  tchars.t_startc = termios_p->c_cc[VSTART];
-  tchars.t_stopc = termios_p->c_cc[VSTOP];
-
-  if (__ioctl (fd, TIOCSETP, &buf) < 0 ||
-      __ioctl (fd, TIOCSETC, &tchars) < 0 ||
-      __ioctl (fd, TIOCSLTC, &ltchars) < 0 ||
-#ifdef	TIOCGETX
-      __ioctl (fd, TIOCSETX, &extra) < 0 ||
-#endif
-      __ioctl (fd, TIOCLSET, &local) < 0)
-    return -1;
-  return 0;
-}
-libc_hidden_def (tcsetattr)
diff --git a/libc/sysdeps/unix/common/bits/dirent.h b/libc/sysdeps/unix/common/bits/dirent.h
deleted file mode 100644
index 8be701d3d..000000000
--- a/libc/sysdeps/unix/common/bits/dirent.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* Directory entry structure `struct dirent'.  SVR4 version.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef _DIRENT_H
-# error "Never use <bits/dirent.h> directly; include <dirent.h> instead."
-#endif
-
-struct dirent
-  {
-    unsigned int d_fileno;
-    int d_off;			/* Position in directory of following entry. */
-    unsigned short int d_reclen;
-    char d_name[1];		/* Variable length.  */
-  };
-
-#define _DIRENT_HAVE_D_RECLEN 1
-#define _DIRENT_HAVE_D_OFF 1
diff --git a/libc/sysdeps/unix/common/bits/fcntl.h b/libc/sysdeps/unix/common/bits/fcntl.h
deleted file mode 100644
index 8b77444c0..000000000
--- a/libc/sysdeps/unix/common/bits/fcntl.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* O_*, F_*, FD_* bit values for general Unix system.
-   Copyright (C) 1991, 1992, 1995, 1997, 2000, 2004
-   Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#ifndef	_FCNTL_H
-# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
-#endif
-
-
-/* File access modes for `open' and `fcntl'.  */
-#define	O_RDONLY	0	/* Open read-only.  */
-#define	O_WRONLY	1	/* Open write-only.  */
-#define	O_RDWR		2	/* Open read/write.  */
-
-
-/* Bits OR'd into the second argument to open.  */
-#define	O_CREAT		0x0100	/* Create file if it doesn't exist.  */
-#define	O_EXCL		0x0400	/* Fail if file already exists.  */
-#define	O_TRUNC		0x0200	/* Truncate file to zero length.  */
-#define	O_NOCTTY	0x0800	/* Don't assign a controlling terminal.  */
-#ifdef	__USE_MISC
-# define O_ASYNC	0x0040	/* Send SIGIO to owner when data is ready.  */
-# define O_FSYNC	0x0010	/* Synchronous writes.  */
-# define O_SYNC		O_FSYNC
-#endif
-
-/* File status flags for `open' and `fcntl'.  */
-#define	O_APPEND	0x0008	/* Writes append to the file.  */
-#define	O_NONBLOCK	0x0080	/* Non-blocking I/O.  */
-
-#ifdef __USE_MISC
-# define O_NDELAY	0x0004
-#endif
-
-#ifdef __USE_MISC
-/* Bits in the file status flags returned by F_GETFL.
-   These are all the O_* flags, plus FREAD and FWRITE, which are
-   independent bits set by which of O_RDONLY, O_WRONLY, and O_RDWR, was
-   given to `open'.  */
-# define FREAD		1
-# define FWRITE		2
-
-/* Traditional Unix names the O_* bits.  */
-# define FASYNC		O_ASYNC
-# define FCREAT		O_CREAT
-# define FEXCL		O_EXCL
-# define FTRUNC		O_TRUNC
-# define FNOCTTY	O_NOCTTY
-# define FFSYNC		O_FSYNC
-# define FSYNC		O_SYNC
-# define FAPPEND	O_APPEND
-# define FNONBLOCK	O_NONBLOCK
-# define FNONBIO	O_NONBLOCK
-# define FNDELAY	O_NDELAY
-#endif
-
-/* Mask for file access modes.  This is system-dependent in case
-   some system ever wants to define some other flavor of access.  */
-#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
-
-/* Values for the second argument to `fcntl'.  */
-#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
-#define	F_GETFD		1	/* Get file descriptor flags.  */
-#define	F_SETFD		2	/* Set file descriptor flags.  */
-#define	F_GETFL		3	/* Get file status flags.  */
-#define	F_SETFL		4	/* Set file status flags.  */
-#if defined __USE_BSD || defined __USE_UNIX98
-# define F_GETOWN	23	/* Get owner (receiver of SIGIO).  */
-# define F_SETOWN	24	/* Set owner (receiver of SIGIO).  */
-#endif
-#define	F_GETLK		14	/* Get record locking info.  */
-#define	F_SETLK		6	/* Set record locking info (non-blocking).  */
-#define	F_SETLKW	7	/* Set record locking info (blocking).  */
-#ifdef	__USE_SVID
-# define F_ALLOCSP	10	/* Allocate space in the file.  */
-# define F_FREESP	11	/* Free space in the file.  */
-# define F_RGETLK	20	/* Get remote record locking info.  */
-# define F_RSETLK	21	/* Set remote locking info (non-blocking).  */
-# define F_RSETLKW	22	/* Set remote locking info (blocking).  */
-#endif
-
-/* File descriptor flags used with F_GETFD and F_SETFD.  */
-#define	FD_CLOEXEC	1	/* Close on exec.  */
-
-
-#include <bits/types.h>
-
-/* The structure describing an advisory lock.  This is the type of the third
-   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
-struct flock
-  {
-    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
-    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
-    __off_t l_start;	/* Offset where the lock begins.  */
-    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
-    long int l_sysid;	/* System ID where locking process resides.  */
-    __pid_t l_pid;	/* Process holding the lock.  */
-    long int pad[4];	/* Reserved for future use.  */
-  };
-
-/* Values for the `l_type' field of a `struct flock'.  */
-#define	F_RDLCK	1	/* Read lock.  */
-#define	F_WRLCK	2	/* Write lock.  */
-#define	F_UNLCK	3	/* Remove lock.  */
diff --git a/libc/sysdeps/unix/common/syscalls.list b/libc/sysdeps/unix/common/syscalls.list
deleted file mode 100644
index f0a5ea0a6..000000000
--- a/libc/sysdeps/unix/common/syscalls.list
+++ /dev/null
@@ -1,15 +0,0 @@
-# File name	Caller	Syscall name	# args	Strong name	Weak names
-
-adjtime		-	adjtime		i:pp	__adjtime	adjtime
-fchmod		-	fchmod		i:ii	__fchmod	fchmod
-fchown		-	fchown		i:iii	__fchown	fchown
-ftruncate	-	ftruncate	i:ii	__ftruncate	ftruncate
-getrusage	-	getrusage	i:ip	__getrusage	getrusage
-gettimeofday	-	gettimeofday	i:PP	__gettimeofday	gettimeofday __gettimeofday_internal
-settimeofday	-	settimeofday	i:PP	__settimeofday	settimeofday
-setpgid		-	setpgrp		i:ii	__setpgid	setpgid
-setregid	-	setregid	i:ii	__setregid	setregid
-setreuid	-	setreuid	i:ii	__setreuid	setreuid
-sigaction	-	sigaction	i:ipp	__sigaction	sigaction
-truncate	-	truncate	i:si	__truncate	truncate
-vhangup		-	vhangup		i:i	vhangup
diff --git a/libc/sysdeps/unix/syscalls.list b/libc/sysdeps/unix/syscalls.list
index 6f423bf44..5c696b31c 100644
--- a/libc/sysdeps/unix/syscalls.list
+++ b/libc/sysdeps/unix/syscalls.list
@@ -2,6 +2,7 @@
 
 access		-	access		i:si	__access	access
 acct		-	acct		i:S	acct
+adjtime		-	adjtime		i:pp	__adjtime	adjtime
 chdir		-	chdir		i:s	__chdir		chdir
 chmod		-	chmod		i:si	__chmod		chmod
 chown		-	chown		i:sii	__chown		__chown_internal chown
@@ -11,9 +12,12 @@ dup		-	dup		i:i	__dup		dup
 dup2		-	dup2		i:ii	__dup2		dup2
 dup3		-	dup3		i:iii	dup3
 fchdir		-	fchdir		i:i	__fchdir	fchdir
+fchmod		-	fchmod		i:ii	__fchmod	fchmod
+fchown		-	fchown		i:iii	__fchown	fchown
 fcntl		-	fcntl		Ci:iiF	__libc_fcntl	__fcntl __fcntl_internal fcntl
 fstatfs		-	fstatfs		i:ip	__fstatfs	fstatfs
 fsync		-	fsync		Ci:i	__libc_fsync	fsync
+ftruncate	-	ftruncate	i:ii	__ftruncate	ftruncate
 getdomain	-	getdomainname	i:si	getdomainname
 getgid		-	getgid		Ei:	__getgid	getgid
 getgroups	-	getgroups	i:ip	__getgroups	getgroups
@@ -21,6 +25,8 @@ getitimer	-	getitimer	i:ip	__getitimer	getitimer
 getpid		-	getpid		Ei:	__getpid	getpid
 getpriority	-	getpriority	i:ii	getpriority
 getrlimit	-	getrlimit	i:ip	__getrlimit	getrlimit
+getrusage	-	getrusage	i:ip	__getrusage	getrusage
+gettimeofday	-	gettimeofday	i:PP	__gettimeofday	gettimeofday __gettimeofday_internal
 getuid		-	getuid		Ei:	__getuid	getuid
 ioctl		-	ioctl		i:iiI	__ioctl		ioctl
 kill		-	kill		i:ii	__kill		kill
@@ -48,11 +54,15 @@ seteuid		-	seteuid		i:i	__seteuid	seteuid
 setgid		-	setgid		i:i	__setgid	setgid
 setgroups	-	setgroups	i:ip	setgroups
 setitimer	-	setitimer	i:ipp	__setitimer	setitimer
+setpgid		-	setpgrp		i:ii	__setpgid	setpgid
 setpriority	-	setpriority	i:iii	setpriority
+setregid	-	setregid	i:ii	__setregid	setregid
+setreuid	-	setreuid	i:ii	__setreuid	setreuid
 setrlimit	-	setrlimit	i:ip	__setrlimit setrlimit
 setsid		-	setsid		i:	__setsid	setsid
 settimeofday	-	settimeofday	i:PP	__settimeofday	settimeofday
 setuid		-	setuid		i:i	__setuid	setuid
+sigaction	-	sigaction	i:ipp	__sigaction	sigaction
 sigsuspend	-	sigsuspend	Ci:p	sigsuspend
 sstk		-	sstk		b:i	sstk
 statfs		-	statfs		i:sp	__statfs	statfs
@@ -61,9 +71,11 @@ swapon		-	swapon		i:s	swapon
 symlink		-	symlink		i:ss	__symlink	symlink
 sync		-	sync		i:	sync
 syncfs		-	syncfs		i:i	syncfs
+truncate	-	truncate	i:si	__truncate	truncate
 umask		-	umask		Ei:i	__umask		umask
 uname		-	uname		i:p	__uname		uname
 unlink		-	unlink		i:s	__unlink	unlink
 utimes		-	utimes		i:sp	__utimes	utimes
+vhangup		-	vhangup		i:i	vhangup
 write		-	write		Ci:ibn	__libc_write	__write write
 writev		-	writev		Ci:ipi	__writev	writev
diff --git a/libc/sysdeps/unix/sysv/linux/Implies b/libc/sysdeps/unix/sysv/linux/Implies
index ab04990ad..b04bb6b33 100644
--- a/libc/sysdeps/unix/sysv/linux/Implies
+++ b/libc/sysdeps/unix/sysv/linux/Implies
@@ -2,8 +2,5 @@
 # Hurd-based GNU systems.
 gnu
 
-# Linux shares most of the syscalls which are also common to BSD and SVR4.
-unix/common
-
 # Linux has network support in the kernel.
 unix/inet
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/ld.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/ld.abilist
index fb1e8d481..fb1e8d481 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/ld.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/ld.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libBrokenLocale.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libBrokenLocale.abilist
index be74b4bf0..be74b4bf0 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libBrokenLocale.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libBrokenLocale.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libanl.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libanl.abilist
index a525e60f6..a525e60f6 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libanl.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libanl.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libc.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist
index 6f15f00e1..6f15f00e1 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libc.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libc.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libcrypt.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libcrypt.abilist
index 23d4ce006..23d4ce006 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libcrypt.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libcrypt.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libdl.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libdl.abilist
index 61c587b0b..61c587b0b 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libdl.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libdl.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libm.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist
index 7bf568c51..7bf568c51 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libm.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libm.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libnsl.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libnsl.abilist
index a6aa9125b..a6aa9125b 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libnsl.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libnsl.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libpthread.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist
index 7c33f350d..7c33f350d 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libpthread.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libpthread.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libresolv.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libresolv.abilist
index 330393617..330393617 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libresolv.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libresolv.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/librt.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/librt.abilist
index 2bd7ff403..2bd7ff403 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/librt.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/librt.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libthread_db.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libthread_db.abilist
index eed6765bc..eed6765bc 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libthread_db.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libthread_db.abilist
diff --git a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libutil.abilist b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libutil.abilist
index 78e6cf526..78e6cf526 100644
--- a/libc/sysdeps/unix/sysv/linux/x86_64/nptl/libutil.abilist
+++ b/libc/sysdeps/unix/sysv/linux/x86_64/64/nptl/libutil.abilist
diff --git a/libc/sysdeps/unix/sysv/syscalls.list b/libc/sysdeps/unix/sysv/syscalls.list
index dc6a4311f..c508dd0ec 100644
--- a/libc/sysdeps/unix/sysv/syscalls.list
+++ b/libc/sysdeps/unix/sysv/syscalls.list
@@ -1,15 +1,9 @@
 # File name	Caller	Syscall name	# args	Strong name	Weak names
 
 alarm		-	alarm		i:i	alarm
-ftime		-	ftime		i:p	ftime
-nice		-	nice		i:i	nice
 pause		-	pause		Ci:	pause
-poll		-	poll		Ci:pii	poll
 setrlimit	-	setrlimit	i:ip	__setrlimit	setrlimit
 settimeofday	-	settimeofday	i:PP	__settimeofday	settimeofday
-signal		-	signal		i:ii	signal
 stime		-	stime		i:p	stime
-time		-	time		Ei:P	time
-times		-	times		Ei:p	__times	times
 ulimit		-	ulimit		i:ii	ulimit
 utime		-	utime		i:sP	utime
diff --git a/libc/sysdeps/x86_64/fpu/e_expl.S b/libc/sysdeps/x86_64/fpu/e_expl.S
new file mode 100644
index 000000000..d497b2897
--- /dev/null
+++ b/libc/sysdeps/x86_64/fpu/e_expl.S
@@ -0,0 +1,106 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ *
+ * Adapted for `long double' by Ulrich Drepper <drepper@cygnus.com>.
+ */
+
+/*
+ * The 8087 method for the exponential function is to calculate
+ *   exp(x) = 2^(x log2(e))
+ * after separating integer and fractional parts
+ *   x log2(e) = i + f, |f| <= .5
+ * 2^i is immediate but f needs to be precise for long double accuracy.
+ * Suppress range reduction error in computing f by the following.
+ * Separate x into integer and fractional parts
+ *   x = xi + xf, |xf| <= .5
+ * Separate log2(e) into the sum of an exact number c0 and small part c1.
+ *   c0 + c1 = log2(e) to extra precision
+ * Then
+ *   f = (c0 xi - i) + c0 xf + c1 x
+ * where c0 xi is exact and so also is (c0 xi - i).
+ * -- moshier@na-net.ornl.gov
+ */
+
+#include <machine/asm.h>
+
+	.section .rodata.cst16,"aM",@progbits,16
+
+	.p2align 4
+	ASM_TYPE_DIRECTIVE(c0,@object)
+c0:	.byte 0, 0, 0, 0, 0, 0, 0xaa, 0xb8, 0xff, 0x3f
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(c0)
+	ASM_TYPE_DIRECTIVE(c1,@object)
+c1:	.byte 0x20, 0xfa, 0xee, 0xc2, 0x5f, 0x70, 0xa5, 0xec, 0xed, 0x3f
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(c1)
+	ASM_TYPE_DIRECTIVE(csat,@object)
+csat:	.byte 0, 0, 0, 0, 0, 0, 0, 0x80, 0x0e, 0x40
+	.byte 0, 0, 0, 0, 0, 0
+	ASM_SIZE_DIRECTIVE(csat)
+
+#ifdef PIC
+# define MO(op) op##(%rip)
+#else
+# define MO(op) op
+#endif
+
+	.text
+ENTRY(__ieee754_expl)
+	fldt	8(%rsp)
+/* I added the following ugly construct because expl(+-Inf) resulted
+   in NaN.  The ugliness results from the bright minds at Intel.
+   For the i686 the code can be written better.
+   -- drepper@cygnus.com.  */
+	fxam			/* Is NaN or +-Inf?  */
+	movzwl	8+8(%rsp), %eax
+	andl	$0x7fff, %eax
+	cmpl	$0x400d, %eax
+	jle	3f
+	/* Overflow, underflow or infinity or NaN as argument.  */
+	fstsw	%ax
+	movb	$0x45, %dh
+	andb	%ah, %dh
+	cmpb	$0x05, %dh
+	je	1f		/* Is +-Inf, jump.    */
+	cmpb	$0x01, %dh
+	je	2f		/* Is +-NaN, jump.    */
+	/* Overflow or underflow; saturate.  */
+	fstp	%st
+	fldt	MO(csat)
+	andb	$2, %ah
+	jz	3f
+	fchs
+3:	fldl2e			/* 1  log2(e)         */
+	fmul	%st(1), %st	/* 1  x log2(e)       */
+	frndint			/* 1  i               */
+	fld	%st(1)		/* 2  x               */
+	frndint			/* 2  xi              */
+	fld	%st(1)		/* 3  i               */
+	fldt	MO(c0)		/* 4  c0              */
+	fld	%st(2)		/* 5  xi              */
+	fmul	%st(1), %st	/* 5  c0 xi           */
+	fsubp	%st, %st(2)	/* 4  f = c0 xi  - i  */
+	fld	%st(4)		/* 5  x               */
+	fsub	%st(3), %st	/* 5  xf = x - xi     */
+	fmulp	%st, %st(1)	/* 4  c0 xf           */
+	faddp	%st, %st(1)	/* 3  f = f + c0 xf   */
+	fldt	MO(c1)		/* 4                  */
+	fmul	%st(4), %st	/* 4  c1 * x          */
+	faddp	%st, %st(1)	/* 3  f = f + c1 * x  */
+	f2xm1			/* 3 2^(fract(x * log2(e))) - 1 */
+	fld1			/* 4 1.0              */
+	faddp			/* 3 2^(fract(x * log2(e))) */
+	fstp	%st(1)		/* 2  */
+	fscale			/* 2 scale factor is st(1); e^x */
+	fstp	%st(1)		/* 1  */
+	fstp	%st(1)		/* 0  */
+	jmp	2f
+1:	testl	$0x200, %eax	/* Test sign.  */
+	jz	2f		/* If positive, jump.  */
+	fstp	%st
+	fldz			/* Set result to 0.  */
+2:	ret
+END(__ieee754_expl)
+strong_alias (__ieee754_expl, __expl_finite)
diff --git a/libc/sysdeps/x86_64/fpu/e_expl.c b/libc/sysdeps/x86_64/fpu/e_expl.c
deleted file mode 100644
index 5042e02db..000000000
--- a/libc/sysdeps/x86_64/fpu/e_expl.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "sysdeps/i386/fpu/e_expl.c"