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authorMike Frysinger <vapier@gentoo.org>2005-02-15 01:27:10 +0000
committerMike Frysinger <vapier@gentoo.org>2005-02-15 01:27:10 +0000
commit1fef64b22811709b2e640d341237bce1c8081203 (patch)
tree1ae6ea157aa30281b73e42ed1607ebc6a601faaf /libc/sysdeps/linux
parentdc3e0e4695d9cf5700ab4b3b245f227be21b907a (diff)
headers for x86_64
Diffstat (limited to 'libc/sysdeps/linux')
-rw-r--r--libc/sysdeps/linux/x86_64/Makefile95
-rw-r--r--libc/sysdeps/linux/x86_64/bits/atomicity.h324
-rw-r--r--libc/sysdeps/linux/x86_64/bits/byteswap.h133
-rw-r--r--libc/sysdeps/linux/x86_64/bits/endian.h7
-rw-r--r--libc/sysdeps/linux/x86_64/bits/fcntl.h195
-rw-r--r--libc/sysdeps/linux/x86_64/bits/fenv.h93
-rw-r--r--libc/sysdeps/linux/x86_64/bits/kernel_stat.h47
-rw-r--r--libc/sysdeps/linux/x86_64/bits/kernel_types.h44
-rw-r--r--libc/sysdeps/linux/x86_64/bits/mathdef.h36
-rw-r--r--libc/sysdeps/linux/x86_64/bits/mathinline.h53
-rw-r--r--libc/sysdeps/linux/x86_64/bits/mman.h100
-rw-r--r--libc/sysdeps/linux/x86_64/bits/profil-counter.h32
-rw-r--r--libc/sysdeps/linux/x86_64/bits/setjmp.h78
-rw-r--r--libc/sysdeps/linux/x86_64/bits/sigcontextinfo.h26
-rw-r--r--libc/sysdeps/linux/x86_64/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/x86_64/bits/syscalls.h218
-rw-r--r--libc/sysdeps/linux/x86_64/bits/wordsize.h8
-rw-r--r--libc/sysdeps/linux/x86_64/fpu_control.h101
-rw-r--r--libc/sysdeps/linux/x86_64/sys/debugreg.h88
-rw-r--r--libc/sysdeps/linux/x86_64/sys/io.h181
-rw-r--r--libc/sysdeps/linux/x86_64/sys/perm.h36
-rw-r--r--libc/sysdeps/linux/x86_64/sys/procfs.h143
-rw-r--r--libc/sysdeps/linux/x86_64/sys/reg.h79
-rw-r--r--libc/sysdeps/linux/x86_64/sys/ucontext.h248
-rw-r--r--libc/sysdeps/linux/x86_64/sys/user.h176
25 files changed, 2569 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/x86_64/Makefile b/libc/sysdeps/linux/x86_64/Makefile
new file mode 100644
index 000000000..2ec4b540c
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/Makefile
@@ -0,0 +1,95 @@
+# Makefile for uClibc
+#
+# Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
+#
+# This program is free software; you can redistribute it and/or modify it under
+# the terms of the GNU Library General Public License as published by the Free
+# Software Foundation; either version 2 of the License, or (at your option) any
+# later version.
+#
+# This program 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 Library General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Library General Public License
+# along with this program; if not, write to the Free Software Foundation, Inc.,
+# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+TOPDIR=../../../../
+include $(TOPDIR)Rules.mak
+
+CRT0_SRC = crt0.S
+CRT0_OBJ = crt0.o crt1.o
+SCRT0_OBJ = $(patsubst %,S%, $(CRT0_OBJ))
+CTOR_TARGETS=$(TOPDIR)lib/crti.o $(TOPDIR)lib/crtn.o
+
+SSRC=__longjmp.S vfork.S setjmp.S syscall.S bsd-setjmp.S bsd-_setjmp.S
+#clone.S
+SOBJS=$(patsubst %.S,%.o, $(SSRC))
+
+CSRC=brk.c sigaction.c
+COBJS=$(patsubst %.c,%.o, $(CSRC))
+
+OBJS=$(SOBJS) $(COBJS)
+
+OBJ_LIST=../../../obj.sysdeps.$(TARGET_ARCH)
+
+all: $(OBJ_LIST)
+
+$(OBJ_LIST): $(OBJS) $(CRT0_OBJ) $(SCRT0_OBJ) $(CTOR_TARGETS)
+ echo $(patsubst %, sysdeps/linux/$(TARGET_ARCH)/%, $(OBJS)) > $(OBJ_LIST)
+ $(INSTALL) -d $(TOPDIR)lib/
+ cp $(CRT0_OBJ) $(SCRT0_OBJ) $(TOPDIR)lib/
+ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
+ $(RM) $(TOPDIR)lib/Scrt0.o
+else
+ mv $(TOPDIR)lib/Scrt0.o $(TOPDIR)lib/Scrt1.o
+endif
+
+$(CRT0_OBJ): $(CRT0_SRC)
+ $(CC) $(ASFLAGS) -DL_$* $< -c -o $*.o
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(SCRT0_OBJ): $(CRT0_SRC)
+ $(CC) $(ASFLAGS) $(PIEFLAG) -DL_$* $< -c -o $*.o
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(SOBJS): %.o : %.S
+ $(CC) $(ASFLAGS) -c $< -o $@
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
+$(COBJS): %.o : %.c
+ $(CC) $(CFLAGS) -c $< -o $@
+ $(STRIPTOOL) -x -R .note -R .comment $*.o
+
+ifeq ($(strip $(UCLIBC_CTOR_DTOR)),y)
+crti.o: crti.S
+ $(CC) $(ASFLAGS) -c crti.S -o crti.o
+
+$(TOPDIR)lib/crti.o: crti.o
+ $(INSTALL) -d $(TOPDIR)lib/
+ cp crti.o $(TOPDIR)lib/
+
+crtn.o: crtn.S
+ $(CC) $(ASFLAGS) -c crtn.S -o crtn.o
+
+$(TOPDIR)lib/crtn.o: crtn.o
+ $(INSTALL) -d $(TOPDIR)lib/
+ cp crtn.o $(TOPDIR)lib/
+else
+$(TOPDIR)lib/crti.o:
+ $(INSTALL) -d $(TOPDIR)lib/
+ $(AR) $(ARFLAGS) $(TOPDIR)lib/crti.o
+$(TOPDIR)lib/crtn.o:
+ $(INSTALL) -d $(TOPDIR)lib/
+ $(AR) $(ARFLAGS) $(TOPDIR)lib/crtn.o
+endif
+
+headers:
+ $(LN) -fs ../libc/sysdeps/linux/x86_64/fpu_control.h $(TOPDIR)/include/
+
+clean:
+ $(RM) *.[oa] *~ core
+ $(RM) bits/sysnum.h
+ $(RM) gmon-start.S
diff --git a/libc/sysdeps/linux/x86_64/bits/atomicity.h b/libc/sysdeps/linux/x86_64/bits/atomicity.h
new file mode 100644
index 000000000..133a68d19
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/atomicity.h
@@ -0,0 +1,324 @@
+/* Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <stdint.h>
+
+
+typedef int8_t atomic8_t;
+typedef uint8_t uatomic8_t;
+typedef int_fast8_t atomic_fast8_t;
+typedef uint_fast8_t uatomic_fast8_t;
+
+typedef int16_t atomic16_t;
+typedef uint16_t uatomic16_t;
+typedef int_fast16_t atomic_fast16_t;
+typedef uint_fast16_t uatomic_fast16_t;
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef int64_t atomic64_t;
+typedef uint64_t uatomic64_t;
+typedef int_fast64_t atomic_fast64_t;
+typedef uint_fast64_t uatomic_fast64_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+
+#ifndef LOCK_PREFIX
+# ifdef UP
+# define LOCK_PREFIX /* nothing */
+# else
+# define LOCK_PREFIX "lock;"
+# endif
+#endif
+
+
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+ ({ __typeof (*mem) ret; \
+ __asm __volatile (LOCK_PREFIX "cmpxchgb %b2, %1" \
+ : "=a" (ret), "=m" (*mem) \
+ : "q" (newval), "m" (*mem), "0" (oldval)); \
+ ret; })
+
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+ ({ __typeof (*mem) ret; \
+ __asm __volatile (LOCK_PREFIX "cmpxchgw %w2, %1" \
+ : "=a" (ret), "=m" (*mem) \
+ : "r" (newval), "m" (*mem), "0" (oldval)); \
+ ret; })
+
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+ ({ __typeof (*mem) ret; \
+ __asm __volatile (LOCK_PREFIX "cmpxchgl %2, %1" \
+ : "=a" (ret), "=m" (*mem) \
+ : "r" (newval), "m" (*mem), "0" (oldval)); \
+ ret; })
+
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+ ({ __typeof (*mem) ret; \
+ __asm __volatile (LOCK_PREFIX "cmpxchgq %q2, %1" \
+ : "=a" (ret), "=m" (*mem) \
+ : "r" ((long) (newval)), "m" (*mem), \
+ "0" ((long) (oldval))); \
+ ret; })
+
+
+/* Note that we need no lock prefix. */
+#define atomic_exchange_acq(mem, newvalue) \
+ ({ __typeof (*mem) result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile ("xchgb %b0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (newvalue), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile ("xchgw %w0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (newvalue), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile ("xchgl %0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (newvalue), "m" (*mem)); \
+ else \
+ __asm __volatile ("xchgq %q0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" ((long) (newvalue)), "m" (*mem)); \
+ result; })
+
+
+#define atomic_exchange_and_add(mem, value) \
+ ({ __typeof (*mem) result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "xaddb %b0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "xaddw %w0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "xaddl %0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" (value), "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "xaddq %q0, %1" \
+ : "=r" (result), "=m" (*mem) \
+ : "0" ((long) (value)), "m" (*mem)); \
+ result; })
+
+
+#define atomic_add(mem, value) \
+ (void) ({ if (__builtin_constant_p (value) && (value) == 1) \
+ atomic_increment (mem); \
+ else if (__builtin_constant_p (value) && (value) == 1) \
+ atomic_decrement (mem); \
+ else if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "addb %b1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "addw %w1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "addl %1, %0" \
+ : "=m" (*mem) \
+ : "ir" (value), "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "addq %q1, %0" \
+ : "=m" (*mem) \
+ : "ir" ((long) (value)), "m" (*mem)); \
+ })
+
+
+#define atomic_add_negative(mem, value) \
+ ({ unsigned char __result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "addb %b2, %0; sets %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "addw %w2, %0; sets %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "addl %2, %0; sets %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "addq %q2, %0; sets %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" ((long) (value)), "m" (*mem)); \
+ __result; })
+
+
+#define atomic_add_zero(mem, value) \
+ ({ unsigned char __result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "addb %b2, %0; setz %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "addw %w2, %0; setz %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "addl %2, %0; setz %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" (value), "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "addq %q2, %0; setz %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "ir" ((long) (value)), "m" (*mem)); \
+ __result; })
+
+
+#define atomic_increment(mem) \
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "incb %b0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "incw %w0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "incl %0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "incq %q0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ })
+
+
+#define atomic_increment_and_test(mem) \
+ ({ unsigned char __result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "incb %b0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "incw %w0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "incl %0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "incq %q0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ __result; })
+
+
+#define atomic_decrement(mem) \
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "decb %b0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "decw %w0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "decl %0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "decq %q0" \
+ : "=m" (*mem) \
+ : "m" (*mem)); \
+ })
+
+
+#define atomic_decrement_and_test(mem) \
+ ({ unsigned char __result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "decb %b0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "decw %w0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "decl %0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "decq %q0; sete %1" \
+ : "=m" (*mem), "=qm" (__result) \
+ : "m" (*mem)); \
+ __result; })
+
+
+#define atomic_bit_set(mem, bit) \
+ (void) ({ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "orb %b2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1L << (bit))); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "orw %w2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1L << (bit))); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "orl %2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "ir" (1L << (bit))); \
+ else if (__builtin_constant_p (bit) && (bit) < 32) \
+ __asm __volatile (LOCK_PREFIX "orq %2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "i" (1L << (bit))); \
+ else \
+ __asm __volatile (LOCK_PREFIX "orq %q2, %0" \
+ : "=m" (*mem) \
+ : "m" (*mem), "r" (1UL << (bit))); \
+ })
+
+
+#define atomic_bit_test_set(mem, bit) \
+ ({ unsigned char __result; \
+ if (sizeof (*mem) == 1) \
+ __asm __volatile (LOCK_PREFIX "btsb %3, %1; setc %0" \
+ : "=q" (__result), "=m" (*mem) \
+ : "m" (*mem), "ir" (bit)); \
+ else if (sizeof (*mem) == 2) \
+ __asm __volatile (LOCK_PREFIX "btsw %3, %1; setc %0" \
+ : "=q" (__result), "=m" (*mem) \
+ : "m" (*mem), "ir" (bit)); \
+ else if (sizeof (*mem) == 4) \
+ __asm __volatile (LOCK_PREFIX "btsl %3, %1; setc %0" \
+ : "=q" (__result), "=m" (*mem) \
+ : "m" (*mem), "ir" (bit)); \
+ else \
+ __asm __volatile (LOCK_PREFIX "btsq %3, %1; setc %0" \
+ : "=q" (__result), "=m" (*mem) \
+ : "m" (*mem), "ir" (bit)); \
+ __result; })
+
+
+#define atomic_delay() asm ("rep; nop")
diff --git a/libc/sysdeps/linux/x86_64/bits/byteswap.h b/libc/sysdeps/linux/x86_64/bits/byteswap.h
new file mode 100644
index 000000000..e1c861c75
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/byteswap.h
@@ -0,0 +1,133 @@
+/* Macros to swap the order of bytes in integer values.
+ Copyright (C) 1997, 1998, 2000, 2002, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#if !defined _BYTESWAP_H && !defined _NETINET_IN_H
+# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
+#endif
+
+#ifndef _BITS_BYTESWAP_H
+#define _BITS_BYTESWAP_H 1
+
+#include <bits/wordsize.h>
+
+/* Swap bytes in 16 bit value. */
+#define __bswap_constant_16(x) \
+ ((((x) >> 8) & 0xff) | (((x) & 0xff) << 8))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+# define __bswap_16(x) \
+ (__extension__ \
+ ({ register unsigned short int __v, __x = (x); \
+ if (__builtin_constant_p (__x)) \
+ __v = __bswap_constant_16 (__x); \
+ else \
+ __asm__ ("rorw $8, %w0" \
+ : "=r" (__v) \
+ : "0" (__x) \
+ : "cc"); \
+ __v; }))
+#else
+/* This is better than nothing. */
+# define __bswap_16(x) \
+ (__extension__ \
+ ({ register unsigned short int __x = (x); __bswap_constant_16 (__x); }))
+#endif
+
+
+/* Swap bytes in 32 bit value. */
+#define __bswap_constant_32(x) \
+ ((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
+ (((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
+
+#if defined __GNUC__ && __GNUC__ >= 2
+# if __WORDSIZE == 64 || (defined __i486__ || defined __pentium__ \
+ || defined __pentiumpro__ || defined __pentium4__ \
+ || defined __k8__ || defined __athlon__ \
+ || defined __k6__)
+/* To swap the bytes in a word the i486 processors and up provide the
+ `bswap' opcode. On i386 we have to use three instructions. */
+# define __bswap_32(x) \
+ (__extension__ \
+ ({ register unsigned int __v, __x = (x); \
+ if (__builtin_constant_p (__x)) \
+ __v = __bswap_constant_32 (__x); \
+ else \
+ __asm__ ("bswap %0" : "=r" (__v) : "0" (__x)); \
+ __v; }))
+# else
+# define __bswap_32(x) \
+ (__extension__ \
+ ({ register unsigned int __v, __x = (x); \
+ if (__builtin_constant_p (__x)) \
+ __v = __bswap_constant_32 (__x); \
+ else \
+ __asm__ ("rorw $8, %w0;" \
+ "rorl $16, %0;" \
+ "rorw $8, %w0" \
+ : "=r" (__v) \
+ : "0" (__x) \
+ : "cc"); \
+ __v; }))
+# endif
+#else
+# define __bswap_32(x) \
+ (__extension__ \
+ ({ register unsigned int __x = (x); __bswap_constant_32 (__x); }))
+#endif
+
+
+#if defined __GNUC__ && __GNUC__ >= 2
+/* Swap bytes in 64 bit value. */
+# define __bswap_constant_64(x) \
+ ((((x) & 0xff00000000000000ull) >> 56) \
+ | (((x) & 0x00ff000000000000ull) >> 40) \
+ | (((x) & 0x0000ff0000000000ull) >> 24) \
+ | (((x) & 0x000000ff00000000ull) >> 8) \
+ | (((x) & 0x00000000ff000000ull) << 8) \
+ | (((x) & 0x0000000000ff0000ull) << 24) \
+ | (((x) & 0x000000000000ff00ull) << 40) \
+ | (((x) & 0x00000000000000ffull) << 56))
+
+# if __WORDSIZE == 64
+# define __bswap_64(x) \
+ (__extension__ \
+ ({ register unsigned long __v, __x = (x); \
+ if (__builtin_constant_p (__x)) \
+ __v = __bswap_constant_64 (__x); \
+ else \
+ __asm__ ("bswap %q0" : "=r" (__v) : "0" (__x)); \
+ __v; }))
+# else
+# define __bswap_64(x) \
+ (__extension__ \
+ ({ union { __extension__ unsigned long long int __ll; \
+ unsigned int __l[2]; } __w, __r; \
+ if (__builtin_constant_p (x)) \
+ __r.__ll = __bswap_constant_64 (x); \
+ else \
+ { \
+ __w.__ll = (x); \
+ __r.__l[0] = __bswap_32 (__w.__l[1]); \
+ __r.__l[1] = __bswap_32 (__w.__l[0]); \
+ } \
+ __r.__ll; }))
+# endif
+#endif
+
+#endif /* _BITS_BYTESWAP_H */
diff --git a/libc/sysdeps/linux/x86_64/bits/endian.h b/libc/sysdeps/linux/x86_64/bits/endian.h
new file mode 100644
index 000000000..2f59eada2
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/endian.h
@@ -0,0 +1,7 @@
+/* x86_64 is little-endian. */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#define __BYTE_ORDER __LITTLE_ENDIAN
diff --git a/libc/sysdeps/linux/x86_64/bits/fcntl.h b/libc/sysdeps/linux/x86_64/bits/fcntl.h
new file mode 100644
index 000000000..6ba65c7c6
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/fcntl.h
@@ -0,0 +1,195 @@
+/* O_*, F_*, FD_* bit values for Linux/x86-64.
+ Copyright (C) 2001, 2002, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FCNTL_H
+# error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
+#endif
+
+
+#include <sys/types.h>
+#include <bits/wordsize.h>
+
+/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
+ located on an ext2 file system */
+#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 O_FSYNC O_SYNC
+#define O_ASYNC 020000
+
+#ifdef __USE_GNU
+# define O_DIRECT 040000 /* Direct disk access. */
+# define O_DIRECTORY 0200000 /* Must be a directory. */
+# define O_NOFOLLOW 0400000 /* Do not follow links. */
+# define O_NOATIME 01000000 /* Do not set atime. */
+#endif
+
+/* For now Linux has synchronisity options for data and read operations.
+ We define the symbols here but let them do the same as O_SYNC since
+ this is a superset. */
+#if defined __USE_POSIX199309 || defined __USE_UNIX98
+# define O_DSYNC O_SYNC /* Synchronize data. */
+# define O_RSYNC O_SYNC /* Synchronize read operations. */
+#endif
+
+#ifdef __USE_LARGEFILE64
+# if __WORDSIZE == 64
+# define O_LARGEFILE 0
+# else
+# define O_LARGEFILE 0100000
+# endif
+#endif
+
+/* 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 __WORDSIZE == 64
+# define F_GETLK 5 /* Get record locking info. */
+# define F_SETLK 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW 7 /* Set record locking info (blocking). */
+/* Not necessary, we always have 64-bit offsets. */
+# define F_GETLK64 5 /* Get record locking info. */
+# define F_SETLK64 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW64 7 /* Set record locking info (blocking). */
+#else
+# ifndef __USE_FILE_OFFSET64
+# define F_GETLK 5 /* Get record locking info. */
+# define F_SETLK 6 /* Set record locking info (non-blocking). */
+# define F_SETLKW 7 /* Set record locking info (blocking). */
+# else
+# define F_GETLK F_GETLK64 /* Get record locking info. */
+# define F_SETLK F_SETLK64 /* Set record locking info (non-blocking).*/
+# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
+# endif
+# define F_GETLK64 12 /* Get record locking info. */
+# define F_SETLK64 13 /* Set record locking info (non-blocking). */
+# define F_SETLKW64 14 /* Set record locking info (blocking). */
+#endif
+
+#if defined __USE_BSD || defined __USE_UNIX98
+# define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */
+# define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETSIG 10 /* Set number of signal to be sent. */
+# define F_GETSIG 11 /* Get number of signal to be sent. */
+#endif
+
+#ifdef __USE_GNU
+# define F_SETLEASE 1024 /* Set a lease. */
+# define F_GETLEASE 1025 /* Enquire what lease is active. */
+# define F_NOTIFY 1026 /* Request notfications on a directory. */
+#endif
+
+/* For F_[GET|SET]FL. */
+#define FD_CLOEXEC 1 /* actually anything with low bit set goes */
+
+/* For posix fcntl() and `l_type' field of a `struct flock' for lockf(). */
+#define F_RDLCK 0 /* Read lock. */
+#define F_WRLCK 1 /* Write lock. */
+#define F_UNLCK 2 /* Remove lock. */
+
+/* For old implementation of bsd flock(). */
+#define F_EXLCK 4 /* or 3 */
+#define F_SHLCK 8 /* or 4 */
+
+#ifdef __USE_BSD
+/* 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 */
+#endif
+
+#ifdef __USE_GNU
+# 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 operations. */
+#endif
+
+#ifdef __USE_GNU
+/* Types of directory notifications that may be requested with F_NOTIFY. */
+# define DN_ACCESS 0x00000001 /* File accessed. */
+# define DN_MODIFY 0x00000002 /* File modified. */
+# define DN_CREATE 0x00000004 /* File created. */
+# define DN_DELETE 0x00000008 /* File removed. */
+# define DN_RENAME 0x00000010 /* File renamed. */
+# define DN_ATTRIB 0x00000020 /* File changed attibutes. */
+# define DN_MULTISHOT 0x80000000 /* Don't remove notifier. */
+#endif
+
+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
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+
+#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. */
+ __pid_t l_pid; /* Process holding the lock. */
+ };
+#endif
+
+/* Define some more compatibility macros to be backward compatible with
+ BSD systems which did not managed to hide these kernel macros. */
+#ifdef __USE_BSD
+# define FAPPEND O_APPEND
+# define FFSYNC O_FSYNC
+# define FASYNC O_ASYNC
+# define FNONBLOCK O_NONBLOCK
+# define FNDELAY O_NDELAY
+#endif /* Use BSD. */
+
+/* Advise to `posix_fadvise'. */
+#ifdef __USE_XOPEN2K
+# define POSIX_FADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_FADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_FADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
+# define POSIX_FADV_NOREUSE 5 /* Data will be accessed once. */
+#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/fenv.h b/libc/sysdeps/linux/x86_64/bits/fenv.h
new file mode 100644
index 000000000..04576933f
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/fenv.h
@@ -0,0 +1,93 @@
+/* Copyright (C) 1997,1998,1999,2000,2001 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+
+/* Define bits representing the exception. We use the bit positions
+ of the appropriate bits in the FPU control word. */
+enum
+ {
+ FE_INVALID = 0x01,
+#define FE_INVALID FE_INVALID
+ __FE_DENORM = 0x02,
+ FE_DIVBYZERO = 0x04,
+#define FE_DIVBYZERO FE_DIVBYZERO
+ FE_OVERFLOW = 0x08,
+#define FE_OVERFLOW FE_OVERFLOW
+ FE_UNDERFLOW = 0x10,
+#define FE_UNDERFLOW FE_UNDERFLOW
+ FE_INEXACT = 0x20
+#define FE_INEXACT FE_INEXACT
+ };
+
+#define FE_ALL_EXCEPT \
+ (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
+
+/* The ix87 FPU supports all of the four defined rounding modes. We
+ use again the bit positions in the FPU control word as the values
+ for the appropriate macros. */
+enum
+ {
+ FE_TONEAREST = 0,
+#define FE_TONEAREST FE_TONEAREST
+ FE_DOWNWARD = 0x400,
+#define FE_DOWNWARD FE_DOWNWARD
+ FE_UPWARD = 0x800,
+#define FE_UPWARD FE_UPWARD
+ FE_TOWARDZERO = 0xc00
+#define FE_TOWARDZERO FE_TOWARDZERO
+ };
+
+
+/* Type representing exception flags. */
+typedef unsigned short int fexcept_t;
+
+
+/* Type representing floating-point environment. This structure
+ corresponds to the layout of the block written by the `fstenv'
+ instruction and has additional fields for the contents of the MXCSR
+ register as written by the `stmxcsr' instruction. */
+typedef struct
+ {
+ unsigned short int __control_word;
+ unsigned short int __unused1;
+ unsigned short int __status_word;
+ unsigned short int __unused2;
+ unsigned short int __tags;
+ unsigned short int __unused3;
+ unsigned int __eip;
+ unsigned short int __cs_selector;
+ unsigned int __opcode:11;
+ unsigned int __unused4:5;
+ unsigned int __data_offset;
+ unsigned short int __data_selector;
+ unsigned short int __unused5;
+ unsigned int __mxcsr;
+ }
+fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((__const fenv_t *) -1)
+
+#ifdef __USE_GNU
+/* Floating-point environment where none of the exception is masked. */
+# define FE_NOMASK_ENV ((__const fenv_t *) -2)
+#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/kernel_stat.h b/libc/sysdeps/linux/x86_64/bits/kernel_stat.h
new file mode 100644
index 000000000..74658db49
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/kernel_stat.h
@@ -0,0 +1,47 @@
+/* Ripped from linux/include/asm-x86_64/stat.h
+ * and renamed 'struct stat' to 'struct kernel_stat' */
+
+#ifndef _ASM_X86_64_STAT_H
+#define _ASM_X86_64_STAT_H
+
+#define STAT_HAVE_NSEC 1
+
+struct kernel_stat {
+ unsigned long st_dev;
+ unsigned long st_ino;
+ unsigned long st_nlink;
+
+ unsigned int st_mode;
+ unsigned int st_uid;
+ unsigned int st_gid;
+ unsigned int __pad0;
+ unsigned long st_rdev;
+ long st_size;
+ long st_blksize;
+ long st_blocks; /* Number 512-byte blocks allocated. */
+
+ 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;
+ long __unused[3];
+};
+
+/* For 32bit emulation */
+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 int st_size;
+ unsigned int st_atime;
+ unsigned int st_mtime;
+ unsigned int st_ctime;
+};
+
+#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/kernel_types.h b/libc/sysdeps/linux/x86_64/bits/kernel_types.h
new file mode 100644
index 000000000..060660cf9
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/kernel_types.h
@@ -0,0 +1,44 @@
+/* Note that we use the exact same include guard #define names
+ * as asm/posix_types.h. This will avoid gratuitous conflicts
+ * with the posix_types.h kernel header, and will ensure that
+ * our private content, and not the kernel header, will win.
+ * -Erik
+ */
+#ifndef _ASM_X86_64_POSIX_TYPES_H
+#define _ASM_X86_64_POSIX_TYPES_H
+
+typedef unsigned long __kernel_dev_t;
+typedef unsigned long __kernel_ino_t;
+typedef unsigned int __kernel_mode_t;
+typedef unsigned long __kernel_nlink_t;
+typedef long __kernel_off_t;
+typedef int __kernel_pid_t;
+typedef int __kernel_ipc_pid_t;
+typedef unsigned int __kernel_uid_t;
+typedef unsigned int __kernel_gid_t;
+typedef unsigned long __kernel_size_t;
+typedef long __kernel_ssize_t;
+typedef long __kernel_ptrdiff_t;
+typedef long __kernel_time_t;
+typedef long __kernel_suseconds_t;
+typedef long __kernel_clock_t;
+typedef int __kernel_daddr_t;
+typedef char * __kernel_caddr_t;
+typedef unsigned short __kernel_uid16_t;
+typedef unsigned short __kernel_gid16_t;
+typedef unsigned int __kernel_uid32_t;
+typedef unsigned int __kernel_gid32_t;
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+typedef __kernel_dev_t __kernel_old_dev_t;
+typedef long long __kernel_loff_t;
+
+typedef struct {
+#ifdef __USE_ALL
+ int val[2];
+#else
+ int __val[2];
+#endif
+} __kernel_fsid_t;
+
+#endif /* _ASM_X86_64_POSIX_TYPES_H */
diff --git a/libc/sysdeps/linux/x86_64/bits/mathdef.h b/libc/sysdeps/linux/x86_64/bits/mathdef.h
new file mode 100644
index 000000000..37665c209
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/mathdef.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 2001, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#if !defined _MATH_H && !defined _COMPLEX_H
+# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
+# define _MATH_H_MATHDEF 1
+
+/* The x86-64 architecture computes values with the precission of the
+ used type. */
+typedef float float_t; /* `float' expressions are evaluated as `float'. */
+typedef double double_t; /* `double' expressions are evaluated
+ as `double'. */
+
+/* The values returned by `ilogb' for 0 and NaN respectively. */
+# define FP_ILOGB0 (-2147483647 - 1)
+# define FP_ILOGBNAN (-2147483647 - 1)
+
+#endif /* ISO C99 */
diff --git a/libc/sysdeps/linux/x86_64/bits/mathinline.h b/libc/sysdeps/linux/x86_64/bits/mathinline.h
new file mode 100644
index 000000000..39d11b678
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/mathinline.h
@@ -0,0 +1,53 @@
+/* Inline math functions for x86-64.
+ Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Jaeger <aj@suse.de>, 2002.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _MATH_H
+# error "Never use <bits/mathinline.h> directly; include <math.h> instead."
+#endif
+
+#ifdef __cplusplus
+# define __MATH_INLINE __inline
+#else
+# define __MATH_INLINE extern __inline
+#endif
+
+
+#if defined __USE_ISOC99 && defined __GNUC__ && __GNUC__ >= 2
+
+/* Test for negative number. Used in the signbit() macro. */
+__MATH_INLINE int
+__NTH (__signbitf (float __x))
+{
+ __extension__ union { float __f; int __i; } __u = { __f: __x };
+ return __u.__i < 0;
+}
+__MATH_INLINE int
+__NTH (__signbit (double __x))
+{
+ __extension__ union { double __d; int __i[2]; } __u = { __d: __x };
+ return __u.__i[1] < 0;
+}
+__MATH_INLINE int
+__NTH (__signbitl (long double __x))
+{
+ __extension__ union { long double __l; int __i[3]; } __u = { __l: __x };
+ return (__u.__i[2] & 0x8000) != 0;
+}
+#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/mman.h b/libc/sysdeps/linux/x86_64/bits/mman.h
new file mode 100644
index 000000000..a7bac2693
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/mman.h
@@ -0,0 +1,100 @@
+/* Definitions for POSIX memory map interface. Linux/x86_64 version.
+ Copyright (C) 2001, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+ But the kernel header is not namespace clean. */
+
+
+/* Protections are chosen from these bits, OR'd together. The
+ implementation does not necessarily support PROT_EXEC or PROT_WRITE
+ without PROT_READ. The only guarantees are that no writing will be
+ allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define PROT_READ 0x1 /* Page can be read. */
+#define PROT_WRITE 0x2 /* Page can be written. */
+#define PROT_EXEC 0x4 /* Page can be executed. */
+#define PROT_NONE 0x0 /* Page can not be accessed. */
+#define PROT_GROWSDOWN 0x01000000 /* Extend change to start of
+ growsdown vma (mprotect only). */
+#define PROT_GROWSUP 0x02000000 /* Extend change to start of
+ growsup vma (mprotect only). */
+
+/* Sharing types (must choose one and only one of these). */
+#define MAP_SHARED 0x01 /* Share changes. */
+#define MAP_PRIVATE 0x02 /* Changes are private. */
+#ifdef __USE_MISC
+# define MAP_TYPE 0x0f /* Mask for type of mapping. */
+#endif
+
+/* Other flags. */
+#define MAP_FIXED 0x10 /* Interpret addr exactly. */
+#ifdef __USE_MISC
+# define MAP_FILE 0
+# define MAP_ANONYMOUS 0x20 /* Don't use a file. */
+# define MAP_ANON MAP_ANONYMOUS
+# define MAP_32BIT 0x40 /* Only give out 32-bit addresses. */
+#endif
+
+/* These are Linux-specific. */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x02000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
+# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
+#endif
+
+/* Flags to `msync'. */
+#define MS_ASYNC 1 /* Sync memory asynchronously. */
+#define MS_SYNC 4 /* Synchronous memory sync. */
+#define MS_INVALIDATE 2 /* Invalidate the caches. */
+
+/* Flags for `mlockall'. */
+#define MCL_CURRENT 1 /* Lock all currently mapped pages. */
+#define MCL_FUTURE 2 /* Lock all additions to address
+ space. */
+
+/* Flags for `mremap'. */
+#ifdef __USE_GNU
+# define MREMAP_MAYMOVE 1
+#endif
+
+/* Advice to `madvise'. */
+#ifdef __USE_BSD
+# define MADV_NORMAL 0 /* No further special treatment. */
+# define MADV_RANDOM 1 /* Expect random page references. */
+# define MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define MADV_WILLNEED 3 /* Will need these pages. */
+# define MADV_DONTNEED 4 /* Don't need these pages. */
+#endif
+
+/* The POSIX people had to invent similar names for the same things. */
+#ifdef __USE_XOPEN2K
+# define POSIX_MADV_NORMAL 0 /* No further special treatment. */
+# define POSIX_MADV_RANDOM 1 /* Expect random page references. */
+# define POSIX_MADV_SEQUENTIAL 2 /* Expect sequential page references. */
+# define POSIX_MADV_WILLNEED 3 /* Will need these pages. */
+# define POSIX_MADV_DONTNEED 4 /* Don't need these pages. */
+#endif
diff --git a/libc/sysdeps/linux/x86_64/bits/profil-counter.h b/libc/sysdeps/linux/x86_64/bits/profil-counter.h
new file mode 100644
index 000000000..0b244175a
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/profil-counter.h
@@ -0,0 +1,32 @@
+/* Low-level statistical profiling support function. Linux/x86-64 version.
+ Copyright (C) 2001, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <signal.h>
+#include <sigcontextinfo.h>
+
+static void
+profil_counter (int signo, SIGCONTEXT scp)
+{
+ profil_count ((void *) GET_PC (scp));
+
+ /* This is a hack to prevent the compiler from implementing the
+ above function call as a sibcall. The sibcall would overwrite
+ the signal context. */
+ asm volatile ("");
+}
diff --git a/libc/sysdeps/linux/x86_64/bits/setjmp.h b/libc/sysdeps/linux/x86_64/bits/setjmp.h
new file mode 100644
index 000000000..96646efdd
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/setjmp.h
@@ -0,0 +1,78 @@
+/* Copyright (C) 2001, 2002, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* Define the machine-dependent type `jmp_buf'. x86-64 version. */
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined _SETJMP_H && !defined _PTHREAD_H
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+
+/* We only need to save callee-saved registers plus stackpointer and
+ program counter. */
+# if defined __USE_MISC || defined _ASM
+# define JB_RBX 0
+# define JB_RBP 1
+# define JB_R12 2
+# define JB_R13 3
+# define JB_R14 4
+# define JB_R15 5
+# define JB_RSP 6
+# define JB_PC 7
+# define JB_SIZE (8*8)
+# endif
+
+#else
+
+# if defined __USE_MISC || defined _ASM
+# define JB_BX 0
+# define JB_SI 1
+# define JB_DI 2
+# define JB_BP 3
+# define JB_SP 4
+# define JB_PC 5
+# define JB_SIZE 24
+# endif
+
+#endif
+
+#ifndef _ASM
+
+# if __WORDSIZE == 64
+typedef long int __jmp_buf[8];
+# else
+typedef int __jmp_buf[6];
+# endif
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+# if __WORDSIZE == 64
+# define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)[JB_RSP])
+# else
+# define _JMPBUF_UNWINDS(jmpbuf, address) \
+ ((void *) (address) < (void *) (jmpbuf)[JB_SP])
+# endif
+#endif
+
+#endif /* bits/setjmp.h */
diff --git a/libc/sysdeps/linux/x86_64/bits/sigcontextinfo.h b/libc/sysdeps/linux/x86_64/bits/sigcontextinfo.h
new file mode 100644
index 000000000..11493c580
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/sigcontextinfo.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 2001, 2002, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#define SIGCONTEXT siginfo_t *_si, struct ucontext *
+#define SIGCONTEXT_EXTRA_ARGS _si,
+#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.gregs[REG_RIP])
+#define GET_FRAME(ctx) ((void *) (ctx)->uc_mcontext.gregs[REG_RBP])
+#define GET_STACK(ctx) ((void *) (ctx)->uc_mcontext.gregs[REG_RSP])
+
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/x86_64/bits/stackinfo.h b/libc/sysdeps/linux/x86_64/bits/stackinfo.h
new file mode 100644
index 000000000..60668d10b
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On x86_64 the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/x86_64/bits/syscalls.h b/libc/sysdeps/linux/x86_64/bits/syscalls.h
new file mode 100644
index 000000000..9a4608c48
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/syscalls.h
@@ -0,0 +1,218 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+/* This includes the `__NR_<name>' syscall numbers taken from the Linux kernel
+ * header files. It also defines the traditional `SYS_<name>' macros for older
+ * programs. */
+#include <bits/sysnum.h>
+
+#ifndef __set_errno
+# define __set_errno(val) (*__errno_location ()) = (val)
+#endif
+
+/*
+ Some of the sneaky macros in the code were taken from
+ glibc-2.2.5/sysdeps/unix/sysv/linux/x86_64/sysdep.h
+*/
+
+#ifndef __ASSEMBLER__
+
+#undef _syscall0
+#define _syscall0(type,name) \
+type name(void) \
+{ \
+return (type) (INLINE_SYSCALL(name, 0)); \
+}
+
+#undef _syscall1
+#define _syscall1(type,name,type1,arg1) \
+type name(type1 arg1) \
+{ \
+return (type) (INLINE_SYSCALL(name, 1, arg1)); \
+}
+
+#undef _syscall2
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
+type name(type1 arg1,type2 arg2) \
+{ \
+return (type) (INLINE_SYSCALL(name, 2, arg1, arg2)); \
+}
+
+#undef _syscall3
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
+type name(type1 arg1,type2 arg2,type3 arg3) \
+{ \
+return (type) (INLINE_SYSCALL(name, 3, arg1, arg2, arg3)); \
+}
+
+#undef _syscall4
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
+{ \
+return (type) (INLINE_SYSCALL(name, 4, arg1, arg2, arg3, arg4)); \
+}
+
+#undef _syscall5
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+ type5,arg5) \
+type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
+{ \
+return (type) (INLINE_SYSCALL(name, 5, arg1, arg2, arg3, arg4, arg5)); \
+}
+
+#undef _syscall6
+#define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
+ type5,arg5,type6,arg6) \
+type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
+{ \
+return (type) (INLINE_SYSCALL(name, 6, arg1, arg2, arg3, arg4, arg5, arg6)); \
+}
+
+/* The Linux/x86-64 kernel expects the system call parameters in
+ registers according to the following table:
+
+ syscall number rax
+ arg 1 rdi
+ arg 2 rsi
+ arg 3 rdx
+ arg 4 r10
+ arg 5 r8
+ arg 6 r9
+
+ The Linux kernel uses and destroys internally these registers:
+ return address from
+ syscall rcx
+ additionally clobered: r12-r15,rbx,rbp
+ eflags from syscall r11
+
+ Normal function call, including calls to the system call stub
+ functions in the libc, get the first six parameters passed in
+ registers and the seventh parameter and later on the stack. The
+ register use is as follows:
+
+ system call number in the DO_CALL macro
+ arg 1 rdi
+ arg 2 rsi
+ arg 3 rdx
+ arg 4 rcx
+ arg 5 r8
+ arg 6 r9
+
+ We have to take care that the stack is aligned to 16 bytes. When
+ called the stack is not aligned since the return address has just
+ been pushed.
+
+
+ Syscalls of more than 6 arguments are not supported. */
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#undef DO_CALL
+#define DO_CALL(syscall_name, args) \
+ DOARGS_##args \
+ movq $SYS_ify (syscall_name), %rax; \
+ syscall;
+
+#define DOARGS_0 /* nothing */
+#define DOARGS_1 /* nothing */
+#define DOARGS_2 /* nothing */
+#define DOARGS_3 /* nothing */
+#define DOARGS_4 movq %rcx, %r10;
+#define DOARGS_5 DOARGS_4
+#define DOARGS_6 DOARGS_5
+
+/* Define a macro which expands inline into the wrapper code for a system
+ call. */
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) \
+ ({ \
+ unsigned long resultvar = INTERNAL_SYSCALL (name, , nr, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (resultvar, ), 0)) \
+ { \
+ __set_errno (INTERNAL_SYSCALL_ERRNO (resultvar, )); \
+ resultvar = (unsigned long) -1; \
+ } \
+ (long) resultvar; })
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+ ({ \
+ unsigned long resultvar; \
+ LOAD_ARGS_##nr (args) \
+ LOAD_REGS_##nr \
+ asm volatile ( \
+ "syscall\n\t" \
+ : "=a" (resultvar) \
+ : "0" (name) ASM_ARGS_##nr : "memory", "cc", "r11", "cx"); \
+ (long) resultvar; })
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL_NCS (__NR_##name, err, nr, ##args)
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned long) (val) >= -4095L)
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+#define LOAD_ARGS_0()
+#define LOAD_REGS_0
+#define ASM_ARGS_0
+
+#define LOAD_ARGS_1(a1) \
+ long int __arg1 = (long) (a1); \
+ LOAD_ARGS_0 ()
+#define LOAD_REGS_1 \
+ register long int _a1 asm ("rdi") = __arg1; \
+ LOAD_REGS_0
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (_a1)
+
+#define LOAD_ARGS_2(a1, a2) \
+ long int __arg2 = (long) (a2); \
+ LOAD_ARGS_1 (a1)
+#define LOAD_REGS_2 \
+ register long int _a2 asm ("rsi") = __arg2; \
+ LOAD_REGS_1
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (_a2)
+
+#define LOAD_ARGS_3(a1, a2, a3) \
+ long int __arg3 = (long) (a3); \
+ LOAD_ARGS_2 (a1, a2)
+#define LOAD_REGS_3 \
+ register long int _a3 asm ("rdx") = __arg3; \
+ LOAD_REGS_2
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (_a3)
+
+#define LOAD_ARGS_4(a1, a2, a3, a4) \
+ long int __arg4 = (long) (a4); \
+ LOAD_ARGS_3 (a1, a2, a3)
+#define LOAD_REGS_4 \
+ register long int _a4 asm ("r10") = __arg4; \
+ LOAD_REGS_3
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (_a4)
+
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5) \
+ long int __arg5 = (long) (a5); \
+ LOAD_ARGS_4 (a1, a2, a3, a4)
+#define LOAD_REGS_5 \
+ register long int _a5 asm ("r8") = __arg5; \
+ LOAD_REGS_4
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (_a5)
+
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6) \
+ long int __arg6 = (long) (a6); \
+ LOAD_ARGS_5 (a1, a2, a3, a4, a5)
+#define LOAD_REGS_6 \
+ register long int _a6 asm ("r9") = __arg6; \
+ LOAD_REGS_5
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (_a6)
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
diff --git a/libc/sysdeps/linux/x86_64/bits/wordsize.h b/libc/sysdeps/linux/x86_64/bits/wordsize.h
new file mode 100644
index 000000000..a40a0d816
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/bits/wordsize.h
@@ -0,0 +1,8 @@
+/* Determine the wordsize from the preprocessor defines. */
+
+#if defined __x86_64__
+# define __WORDSIZE 64
+# define __WORDSIZE_COMPAT32 1
+#else
+# define __WORDSIZE 32
+#endif
diff --git a/libc/sysdeps/linux/x86_64/fpu_control.h b/libc/sysdeps/linux/x86_64/fpu_control.h
new file mode 100644
index 000000000..3eae48e0d
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/fpu_control.h
@@ -0,0 +1,101 @@
+/* FPU control word bits. x86-64 version.
+ Copyright (C) 1993,1995,1996,1997,1998,2000,2001,2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Olaf Flebbe.
+
+ 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H 1
+
+/* Note that this file sets on x86-64 only the x87 FPU, it does not
+ touch the SSE unit. */
+
+/* Here is the dirty part. Set up your 387 through the control word
+ * (cw) register.
+ *
+ * 15-13 12 11-10 9-8 7-6 5 4 3 2 1 0
+ * | reserved | IC | RC | PC | reserved | PM | UM | OM | ZM | DM | IM
+ *
+ * IM: Invalid operation mask
+ * DM: Denormalized operand mask
+ * ZM: Zero-divide mask
+ * OM: Overflow mask
+ * UM: Underflow mask
+ * PM: Precision (inexact result) mask
+ *
+ * Mask bit is 1 means no interrupt.
+ *
+ * PC: Precision control
+ * 11 - round to extended precision
+ * 10 - round to double precision
+ * 00 - round to single precision
+ *
+ * RC: Rounding control
+ * 00 - rounding to nearest
+ * 01 - rounding down (toward - infinity)
+ * 10 - rounding up (toward + infinity)
+ * 11 - rounding toward zero
+ *
+ * IC: Infinity control
+ * That is for 8087 and 80287 only.
+ *
+ * The hardware default is 0x037f which we use.
+ */
+
+#include <features.h>
+
+/* masking of interrupts */
+#define _FPU_MASK_IM 0x01
+#define _FPU_MASK_DM 0x02
+#define _FPU_MASK_ZM 0x04
+#define _FPU_MASK_OM 0x08
+#define _FPU_MASK_UM 0x10
+#define _FPU_MASK_PM 0x20
+
+/* precision control */
+#define _FPU_EXTENDED 0x300 /* libm requires double extended precision. */
+#define _FPU_DOUBLE 0x200
+#define _FPU_SINGLE 0x0
+
+/* rounding control */
+#define _FPU_RC_NEAREST 0x0 /* RECOMMENDED */
+#define _FPU_RC_DOWN 0x400
+#define _FPU_RC_UP 0x800
+#define _FPU_RC_ZERO 0xC00
+
+#define _FPU_RESERVED 0xF0C0 /* Reserved bits in cw */
+
+
+/* The fdlibm code requires strict IEEE double precision arithmetic,
+ and no interrupts for exceptions, rounding to nearest. */
+
+#define _FPU_DEFAULT 0x037f
+
+/* IEEE: same as above. */
+#define _FPU_IEEE 0x037f
+
+/* Type of the control word. */
+typedef unsigned int fpu_control_t __attribute__ ((__mode__ (__HI__)));
+
+/* Macros for accessing the hardware control word. */
+#define _FPU_GETCW(cw) __asm__ ("fnstcw %0" : "=m" (*&cw))
+#define _FPU_SETCW(cw) __asm__ ("fldcw %0" : : "m" (*&cw))
+
+/* Default control word set at startup. */
+extern fpu_control_t __fpu_control;
+
+#endif /* fpu_control.h */
diff --git a/libc/sysdeps/linux/x86_64/sys/debugreg.h b/libc/sysdeps/linux/x86_64/sys/debugreg.h
new file mode 100644
index 000000000..8abbf7546
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/debugreg.h
@@ -0,0 +1,88 @@
+/* Copyright (C) 2001, 2003 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_DEBUGREG_H
+#define _SYS_DEBUGREG_H 1
+#include <bits/wordsize.h>
+
+/* Indicate the register numbers for a number of the specific
+ debug registers. Registers 0-3 contain the addresses we wish to trap on */
+#define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */
+#define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */
+
+#define DR_STATUS 6 /* u_debugreg[DR_STATUS] */
+#define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */
+
+/* Define a few things for the status register. We can use this to determine
+ which debugging register was responsible for the trap. The other bits
+ are either reserved or not of interest to us. */
+
+#define DR_TRAP0 (0x1) /* db0 */
+#define DR_TRAP1 (0x2) /* db1 */
+#define DR_TRAP2 (0x4) /* db2 */
+#define DR_TRAP3 (0x8) /* db3 */
+
+#define DR_STEP (0x4000) /* single-step */
+#define DR_SWITCH (0x8000) /* task switch */
+
+/* Now define a bunch of things for manipulating the control register.
+ The top two bytes of the control register consist of 4 fields of 4
+ bits - each field corresponds to one of the four debug registers,
+ and indicates what types of access we trap on, and how large the data
+ field is that we are looking at */
+
+#define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */
+#define DR_CONTROL_SIZE 4 /* 4 control bits per register */
+
+#define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */
+#define DR_RW_WRITE (0x1)
+#define DR_RW_READ (0x3)
+
+#define DR_LEN_1 (0x0) /* Settings for data length to trap on */
+#define DR_LEN_2 (0x4)
+#define DR_LEN_4 (0xC)
+#define DR_LEN_8 (0x8)
+
+/* The low byte to the control register determine which registers are
+ enabled. There are 4 fields of two bits. One bit is "local", meaning
+ that the processor will reset the bit after a task switch and the other
+ is global meaning that we have to explicitly reset the bit. With linux,
+ you can use either one, since we explicitly zero the register when we enter
+ kernel mode. */
+
+#define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */
+#define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */
+#define DR_ENABLE_SIZE 2 /* 2 enable bits per register */
+
+#define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */
+#define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */
+
+/* The second byte to the control register has a few special
+ things. */
+
+
+
+#if __WORDSIZE == 64
+# define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00UL) /* Reserved */
+#else
+# define DR_CONTROL_RESERVED (0x00FC00U) /* Reserved */
+#endif
+#define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */
+#define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */
+
+#endif /* sys/debugreg.h */
diff --git a/libc/sysdeps/linux/x86_64/sys/io.h b/libc/sysdeps/linux/x86_64/sys/io.h
new file mode 100644
index 000000000..802a0dfb4
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/io.h
@@ -0,0 +1,181 @@
+/* Copyright (C) 1996, 2000, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_IO_H
+#define _SYS_IO_H 1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* If TURN_ON is TRUE, request for permission to do direct i/o on the
+ port numbers in the range [FROM,FROM+NUM-1]. Otherwise, turn I/O
+ permission off for that range. This call requires root privileges.
+
+ Portability note: not all Linux platforms support this call. Most
+ platforms based on the PC I/O architecture probably will, however.
+ E.g., Linux/Alpha for Alpha PCs supports this. */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+ int __turn_on) __THROW;
+
+/* Set the I/O privilege level to LEVEL. If LEVEL>3, permission to
+ access any I/O port is granted. This call requires root
+ privileges. */
+extern int iopl (int __level) __THROW;
+
+#if defined __GNUC__ && __GNUC__ >= 2
+
+static __inline unsigned char
+inb (unsigned short int port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned char
+inb_p (unsigned short int port)
+{
+ unsigned char _v;
+
+ __asm__ __volatile__ ("inb %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned short int
+inw (unsigned short int port)
+{
+ unsigned short _v;
+
+ __asm__ __volatile__ ("inw %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned short int
+inw_p (unsigned short int port)
+{
+ unsigned short int _v;
+
+ __asm__ __volatile__ ("inw %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned int
+inl (unsigned short int port)
+{
+ unsigned int _v;
+
+ __asm__ __volatile__ ("inl %w1,%0":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline unsigned int
+inl_p (unsigned short int port)
+{
+ unsigned int _v;
+ __asm__ __volatile__ ("inl %w1,%0\noutb %%al,$0x80":"=a" (_v):"Nd" (port));
+ return _v;
+}
+
+static __inline void
+outb (unsigned char value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outb %b0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outb_p (unsigned char value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outb %b0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+outw (unsigned short int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outw %w0,%w1": :"a" (value), "Nd" (port));
+
+}
+
+static __inline void
+outw_p (unsigned short int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outw %w0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+outl (unsigned int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outl %0,%w1": :"a" (value), "Nd" (port));
+}
+
+static __inline void
+outl_p (unsigned int value, unsigned short int port)
+{
+ __asm__ __volatile__ ("outl %0,%w1\noutb %%al,$0x80": :"a" (value),
+ "Nd" (port));
+}
+
+static __inline void
+insb (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insb":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insw (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insw":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+insl (unsigned short int port, void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; insl":"=D" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsb (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsb":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsw (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsw":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+static __inline void
+outsl (unsigned short int port, const void *addr, unsigned long int count)
+{
+ __asm__ __volatile__ ("cld ; rep ; outsl":"=S" (addr),
+ "=c" (count):"d" (port), "0" (addr), "1" (count));
+}
+
+#endif /* GNU C */
+
+__END_DECLS
+#endif /* _SYS_IO_H */
diff --git a/libc/sysdeps/linux/x86_64/sys/perm.h b/libc/sysdeps/linux/x86_64/sys/perm.h
new file mode 100644
index 000000000..382fa92ee
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/perm.h
@@ -0,0 +1,36 @@
+/* Copyright (C) 1996, 1999, 2001 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_PERM_H
+
+#define _SYS_PERM_H 1
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Set port input/output permissions. */
+extern int ioperm (unsigned long int __from, unsigned long int __num,
+ int __turn_on) __THROW;
+
+
+/* Change I/O privilege level. */
+extern int iopl (int __level) __THROW;
+
+__END_DECLS
+
+#endif /* _SYS_PERM_H */
diff --git a/libc/sysdeps/linux/x86_64/sys/procfs.h b/libc/sysdeps/linux/x86_64/sys/procfs.h
new file mode 100644
index 000000000..5995b7115
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/procfs.h
@@ -0,0 +1,143 @@
+/* Copyright (C) 2001, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+#include <bits/wordsize.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them. We could have used `struct
+ user_regs_struct' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#if __WORDSIZE == 32
+/* Register set for the floating-point registers. */
+typedef struct user_fpregs_struct elf_fpregset_t;
+
+/* Register set for the extended floating-point registers. Includes
+ the Pentium III SSE registers in addition to the classic
+ floating-point stuff. */
+typedef struct user_fpxregs_struct elf_fpxregset_t;
+#else
+/* Register set for the extended floating-point registers. Includes
+ the Pentium III SSE registers in addition to the classic
+ floating-point stuff. */
+typedef struct user_fpregs_struct elf_fpregset_t;
+#endif
+
+/* Signal info. */
+struct elf_siginfo
+ {
+ int si_signo; /* Signal number. */
+ int si_code; /* Extra code. */
+ int si_errno; /* Errno. */
+ };
+
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct elf_prstatus
+ {
+ struct elf_siginfo pr_info; /* Info associated with signal. */
+ short int pr_cursig; /* Current signal. */
+ unsigned long int pr_sigpend; /* Set of pending signals. */
+ unsigned long int pr_sighold; /* Set of held signals. */
+ __pid_t pr_pid;
+ __pid_t pr_ppid;
+ __pid_t pr_pgrp;
+ __pid_t pr_sid;
+ struct timeval pr_utime; /* User time. */
+ struct timeval pr_stime; /* System time. */
+ struct timeval pr_cutime; /* Cumulative user time. */
+ struct timeval pr_cstime; /* Cumulative system time. */
+ elf_gregset_t pr_reg; /* GP registers. */
+ int pr_fpvalid; /* True if math copro being used. */
+ };
+
+
+#define ELF_PRARGSZ (80) /* Number of chars for args. */
+
+struct elf_prpsinfo
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ unsigned long int pr_flag; /* Flags. */
+#if __WORDSIZE == 32
+ unsigned short int pr_uid;
+ unsigned short int pr_gid;
+#else
+ unsigned int pr_uid;
+ unsigned int pr_gid;
+#endif
+ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+ /* Lots missing */
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Addresses. */
+typedef void *psaddr_t;
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+ therefore have only one PID type. */
+typedef __pid_t lwpid_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
diff --git a/libc/sysdeps/linux/x86_64/sys/reg.h b/libc/sysdeps/linux/x86_64/sys/reg.h
new file mode 100644
index 000000000..865e34559
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/reg.h
@@ -0,0 +1,79 @@
+/* Copyright (C) 2001, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_REG_H
+#define _SYS_REG_H 1
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+/* Index into an array of 8 byte longs returned from ptrace for
+ location of the users' stored general purpose registers. */
+
+# define R15 0
+# define R14 1
+# define R13 2
+# define R12 3
+# define RBP 4
+# define RBX 5
+# define R11 6
+# define R10 7
+# define R9 8
+# define R8 9
+# define RAX 10
+# define RCX 11
+# define RDX 12
+# define RSI 13
+# define RDI 14
+# define ORIG_RAX 15
+# define RIP 16
+# define CS 17
+# define EFLAGS 18
+# define RSP 19
+# define SS 20
+# define FS_BASE 21
+# define GS_BASE 22
+# define DS 23
+# define ES 24
+# define FS 25
+# define GS 26
+#else
+
+/* Index into an array of 4 byte integers returned from ptrace for
+ * location of the users' stored general purpose registers. */
+
+# define EBX 0
+# define ECX 1
+# define EDX 2
+# define ESI 3
+# define EDI 4
+# define EBP 5
+# define EAX 6
+# define DS 7
+# define ES 8
+# define FS 9
+# define GS 10
+# define ORIG_EAX 11
+# define EIP 12
+# define CS 13
+# define EFL 14
+# define UESP 15
+# define SS 16
+#endif
+
+#endif
diff --git a/libc/sysdeps/linux/x86_64/sys/ucontext.h b/libc/sysdeps/linux/x86_64/sys/ucontext.h
new file mode 100644
index 000000000..b59cd292f
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/ucontext.h
@@ -0,0 +1,248 @@
+/* Copyright (C) 2001, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+#include <bits/wordsize.h>
+
+/* We need the signal context definitions even if they are not used
+ included in <signal.h>. */
+#include <bits/sigcontext.h>
+
+#if __WORDSIZE == 64
+
+/* Type for general register. */
+typedef long int greg_t;
+
+/* Number of general registers. */
+#define NGREG 23
+
+/* Container for all general registers. */
+typedef greg_t gregset_t[NGREG];
+
+#ifdef __USE_GNU
+/* Number of each register in the `gregset_t' array. */
+enum
+{
+ REG_R8 = 0,
+# define REG_R8 REG_R8
+ REG_R9,
+# define REG_R9 REG_R9
+ REG_R10,
+# define REG_R10 REG_R10
+ REG_R11,
+# define REG_R11 REG_R11
+ REG_R12,
+# define REG_R12 REG_R12
+ REG_R13,
+# define REG_R13 REG_R13
+ REG_R14,
+# define REG_R14 REG_R14
+ REG_R15,
+# define REG_R15 REG_R15
+ REG_RDI,
+# define REG_RDI REG_RDI
+ REG_RSI,
+# define REG_RSI REG_RSI
+ REG_RBP,
+# define REG_RBP REG_RBP
+ REG_RBX,
+# define REG_RBX REG_RBX
+ REG_RDX,
+# define REG_RDX REG_RDX
+ REG_RAX,
+# define REG_RAX REG_RAX
+ REG_RCX,
+# define REG_RCX REG_RCX
+ REG_RSP,
+# define REG_RSP REG_RSP
+ REG_RIP,
+# define REG_RIP REG_RIP
+ REG_EFL,
+# define REG_EFL REG_EFL
+ REG_CSGSFS, /* Actually short cs, gs, fs, __pad0. */
+# define REG_CSGSFS REG_CSGSFS
+ REG_ERR,
+# define REG_ERR REG_ERR
+ REG_TRAPNO,
+# define REG_TRAPNO REG_TRAPNO
+ REG_OLDMASK,
+# define REG_OLDMASK REG_OLDMASK
+ REG_CR2
+# define REG_CR2 REG_CR2
+};
+#endif
+
+struct _libc_fpxreg
+{
+ unsigned short int significand[4];
+ unsigned short int exponent;
+ unsigned short int padding[3];
+};
+
+struct _libc_xmmreg
+{
+ __uint32_t element[4];
+};
+
+struct _libc_fpstate
+{
+ /* 64-bit FXSAVE format. */
+ __uint16_t cwd;
+ __uint16_t swd;
+ __uint16_t ftw;
+ __uint16_t fop;
+ __uint64_t rip;
+ __uint64_t rdp;
+ __uint32_t mxcsr;
+ __uint32_t mxcr_mask;
+ struct _libc_fpxreg _st[8];
+ struct _libc_xmmreg _xmm[16];
+ __uint32_t padding[24];
+};
+
+/* Structure to describe FPU registers. */
+typedef struct _libc_fpstate *fpregset_t;
+
+/* Context to describe whole processor state. */
+typedef struct
+ {
+ gregset_t gregs;
+ /* Note that fpregs is a pointer. */
+ fpregset_t fpregs;
+ unsigned long __reserved1 [8];
+} mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext
+ {
+ unsigned long int uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+ struct _libc_fpstate __fpregs_mem;
+ } ucontext_t;
+
+#else /* __WORDSIZE == 32 */
+
+/* Type for general register. */
+typedef int greg_t;
+
+/* Number of general registers. */
+#define NGREG 19
+
+/* Container for all general registers. */
+typedef greg_t gregset_t[NGREG];
+
+#ifdef __USE_GNU
+/* Number of each register is the `gregset_t' array. */
+enum
+{
+ REG_GS = 0,
+# define REG_GS REG_GS
+ REG_FS,
+# define REG_FS REG_FS
+ REG_ES,
+# define REG_ES REG_ES
+ REG_DS,
+# define REG_DS REG_DS
+ REG_EDI,
+# define REG_EDI REG_EDI
+ REG_ESI,
+# define REG_ESI REG_ESI
+ REG_EBP,
+# define REG_EBP REG_EBP
+ REG_ESP,
+# define REG_ESP REG_ESP
+ REG_EBX,
+# define REG_EBX REG_EBX
+ REG_EDX,
+# define REG_EDX REG_EDX
+ REG_ECX,
+# define REG_ECX REG_ECX
+ REG_EAX,
+# define REG_EAX REG_EAX
+ REG_TRAPNO,
+# define REG_TRAPNO REG_TRAPNO
+ REG_ERR,
+# define REG_ERR REG_ERR
+ REG_EIP,
+# define REG_EIP REG_EIP
+ REG_CS,
+# define REG_CS REG_CS
+ REG_EFL,
+# define REG_EFL REG_EFL
+ REG_UESP,
+# define REG_UESP REG_UESP
+ REG_SS
+# define REG_SS REG_SS
+};
+#endif
+
+/* Definitions taken from the kernel headers. */
+struct _libc_fpreg
+{
+ unsigned short int significand[4];
+ unsigned short int exponent;
+};
+
+struct _libc_fpstate
+{
+ unsigned long int cw;
+ unsigned long int sw;
+ unsigned long int tag;
+ unsigned long int ipoff;
+ unsigned long int cssel;
+ unsigned long int dataoff;
+ unsigned long int datasel;
+ struct _libc_fpreg _st[8];
+ unsigned long int status;
+};
+
+/* Structure to describe FPU registers. */
+typedef struct _libc_fpstate *fpregset_t;
+
+/* Context to describe whole processor state. */
+typedef struct
+ {
+ gregset_t gregs;
+ /* Due to Linux's history we have to use a pointer here. The SysV/i386
+ ABI requires a struct with the values. */
+ fpregset_t fpregs;
+ unsigned long int oldmask;
+ unsigned long int cr2;
+ } mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext
+ {
+ unsigned long int uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+ struct _libc_fpstate __fpregs_mem;
+ } ucontext_t;
+
+#endif /* __WORDSIZE == 32 */
+
+#endif /* sys/ucontext.h */
diff --git a/libc/sysdeps/linux/x86_64/sys/user.h b/libc/sysdeps/linux/x86_64/sys/user.h
new file mode 100644
index 000000000..5ff68e575
--- /dev/null
+++ b/libc/sysdeps/linux/x86_64/sys/user.h
@@ -0,0 +1,176 @@
+/* Copyright (C) 2001, 2002, 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+/* The whole purpose of this file is for GDB and GDB only. Don't read
+ too much into it. Don't use it for anything other than GDB unless
+ you know what you are doing. */
+
+#include <bits/wordsize.h>
+
+#if __WORDSIZE == 64
+
+struct user_fpregs_struct
+{
+ __uint16_t cwd;
+ __uint16_t swd;
+ __uint16_t ftw;
+ __uint16_t fop;
+ __uint64_t rip;
+ __uint64_t rdp;
+ __uint32_t mxcsr;
+ __uint32_t mxcr_mask;
+ __uint32_t st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
+ __uint32_t xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */
+ __uint32_t padding[24];
+};
+
+struct user_regs_struct
+{
+ unsigned long r15;
+ unsigned long r14;
+ unsigned long r13;
+ unsigned long r12;
+ unsigned long rbp;
+ unsigned long rbx;
+ unsigned long r11;
+ unsigned long r10;
+ unsigned long r9;
+ unsigned long r8;
+ unsigned long rax;
+ unsigned long rcx;
+ unsigned long rdx;
+ unsigned long rsi;
+ unsigned long rdi;
+ unsigned long orig_rax;
+ unsigned long rip;
+ unsigned long cs;
+ unsigned long eflags;
+ unsigned long rsp;
+ unsigned long ss;
+ unsigned long fs_base;
+ unsigned long gs_base;
+ unsigned long ds;
+ unsigned long es;
+ unsigned long fs;
+ unsigned long gs;
+};
+
+struct user
+{
+ struct user_regs_struct regs;
+ int u_fpvalid;
+ struct user_fpregs_struct i387;
+ unsigned long int u_tsize;
+ unsigned long int u_dsize;
+ unsigned long int u_ssize;
+ unsigned long start_code;
+ unsigned long start_stack;
+ long int signal;
+ int reserved;
+ struct user_regs_struct* u_ar0;
+ struct user_fpregs_struct* u_fpstate;
+ unsigned long int magic;
+ char u_comm [32];
+ unsigned long int u_debugreg [8];
+};
+
+#else
+/* These are the 32-bit x86 structures. */
+struct user_fpregs_struct
+{
+ long int cwd;
+ long int swd;
+ long int twd;
+ long int fip;
+ long int fcs;
+ long int foo;
+ long int fos;
+ long int st_space [20];
+};
+
+struct user_fpxregs_struct
+{
+ unsigned short int cwd;
+ unsigned short int swd;
+ unsigned short int twd;
+ unsigned short int fop;
+ long int fip;
+ long int fcs;
+ long int foo;
+ long int fos;
+ long int mxcsr;
+ long int reserved;
+ long int st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */
+ long int xmm_space[32]; /* 8*16 bytes for each XMM-reg = 128 bytes */
+ long int padding[56];
+};
+
+struct user_regs_struct
+{
+ long int ebx;
+ long int ecx;
+ long int edx;
+ long int esi;
+ long int edi;
+ long int ebp;
+ long int eax;
+ long int xds;
+ long int xes;
+ long int xfs;
+ long int xgs;
+ long int orig_eax;
+ long int eip;
+ long int xcs;
+ long int eflags;
+ long int esp;
+ long int xss;
+};
+
+struct user
+{
+ struct user_regs_struct regs;
+ int u_fpvalid;
+ struct user_fpregs_struct i387;
+ unsigned long int u_tsize;
+ unsigned long int u_dsize;
+ unsigned long int u_ssize;
+ unsigned long start_code;
+ unsigned long start_stack;
+ long int signal;
+ int reserved;
+ struct user_regs_struct* u_ar0;
+ struct user_fpregs_struct* u_fpstate;
+ unsigned long int magic;
+ char u_comm [32];
+ int u_debugreg [8];
+};
+#endif /* __WORDSIZE */
+
+#include <bits/uClibc_page.h>
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (1UL << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
+#define NBPG PAGE_SIZE
+#define UPAGES 1
+#define HOST_TEXT_START_ADDR (u.start_code)
+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
+
+#endif /* _SYS_USER_H */
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