x86_64: unify sysdep.h

Signed-off-by: Austin Foxley <austinf@cetoncorp.com>

1 files changed, 0 insertions, 259 deletions

diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep.h b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep.h
deleted file mode 100644
index fe92a8ab5..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/sysdep.h
+++ /dev/null
@@ -1,259 +0,0 @@
-/* Copyright (C) 2001-2005, 2007 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 _LINUX_X86_64_SYSDEP_H
-#define _LINUX_X86_64_SYSDEP_H 1
-
-/* There is some commonality.  */
-#include <sys/syscall.h>
-#include <sysdeps/i386/sysdep.h>
-
-#ifdef IS_IN_rtld
-# include <dl-sysdep.h>		/* Defines RTLD_PRIVATE_ERRNO.  */
-#endif
-
-/* For Linux we can use the system call table in the header file
-	/usr/include/asm/unistd.h
-   of the kernel.  But these symbols do not follow the SYS_* syntax
-   so we have to redefine the `SYS_ify' macro here.  */
-#undef SYS_ify
-#define SYS_ify(syscall_name)	__NR_##syscall_name
-
-/* This is a kludge to make syscalls.list find these under the names
-   pread and pwrite, since some kernel headers define those names
-   and some define the *64 names for the same system calls.  */
-#if !defined __NR_pread && defined __NR_pread64
-# define __NR_pread __NR_pread64
-#endif
-#if !defined __NR_pwrite && defined __NR_pwrite64
-# define __NR_pwrite __NR_pwrite64
-#endif
-
-/* This is to help the old kernel headers where __NR_semtimedop is not
-   available.  */
-#ifndef __NR_semtimedop
-# define __NR_semtimedop 220
-#endif
-
-
-#ifdef __ASSEMBLER__
-
-/* Linux uses a negative return value to indicate syscall errors,
-   unlike most Unices, which use the condition codes' carry flag.
-
-   Since version 2.1 the return value of a system call might be
-   negative even if the call succeeded.	 E.g., the `lseek' system call
-   might return a large offset.	 Therefore we must not anymore test
-   for < 0, but test for a real error by making sure the value in %eax
-   is a real error number.  Linus said he will make sure the no syscall
-   returns a value in -1 .. -4095 as a valid result so we can savely
-   test with -4095.  */
-
-/* We don't want the label for the error handle to be global when we define
-   it here.  */
-# ifdef __PIC__
-#  define SYSCALL_ERROR_LABEL 0f
-# else
-#  define SYSCALL_ERROR_LABEL syscall_error
-# endif
-
-# undef	PSEUDO
-# define PSEUDO(name, syscall_name, args)				      \
-  .text;								      \
-  ENTRY (name)								      \
-    DO_CALL (syscall_name, args);					      \
-    cmpq $-4095, %rax;							      \
-    jae SYSCALL_ERROR_LABEL;						      \
-  L(pseudo_end):
-
-# undef	PSEUDO_END
-# define PSEUDO_END(name)						      \
-  SYSCALL_ERROR_HANDLER							      \
-  END (name)
-
-# undef	PSEUDO_NOERRNO
-# define PSEUDO_NOERRNO(name, syscall_name, args) \
-  .text;								      \
-  ENTRY (name)								      \
-    DO_CALL (syscall_name, args)
-
-# undef	PSEUDO_END_NOERRNO
-# define PSEUDO_END_NOERRNO(name) \
-  END (name)
-
-# define ret_NOERRNO ret
-
-# undef	PSEUDO_ERRVAL
-# define PSEUDO_ERRVAL(name, syscall_name, args) \
-  .text;								      \
-  ENTRY (name)								      \
-    DO_CALL (syscall_name, args);					      \
-    negq %rax
-
-# undef	PSEUDO_END_ERRVAL
-# define PSEUDO_END_ERRVAL(name) \
-  END (name)
-
-# define ret_ERRVAL ret
-
-# ifndef __PIC__
-#  define SYSCALL_ERROR_HANDLER	/* Nothing here; code in sysdep.S is used.  */
-# elif defined(RTLD_PRIVATE_ERRNO)
-#  define SYSCALL_ERROR_HANDLER			\
-0:						\
-  leaq rtld_errno(%rip), %rcx;			\
-  xorl %edx, %edx;				\
-  subq %rax, %rdx;				\
-  movl %edx, (%rcx);				\
-  orq $-1, %rax;				\
-  jmp L(pseudo_end);
-# elif USE___THREAD
-#  ifndef NOT_IN_libc
-#   define SYSCALL_ERROR_ERRNO __libc_errno
-#  else
-#   define SYSCALL_ERROR_ERRNO errno
-#  endif
-#  define SYSCALL_ERROR_HANDLER			\
-0:						\
-  movq SYSCALL_ERROR_ERRNO@GOTTPOFF(%rip), %rcx;\
-  xorl %edx, %edx;				\
-  subq %rax, %rdx;				\
-  movl %edx, %fs:(%rcx);			\
-  orq $-1, %rax;				\
-  jmp L(pseudo_end);
-# elif defined _LIBC_REENTRANT
-/* Store (- %rax) into errno through the GOT.
-   Note that errno occupies only 4 bytes.  */
-#  define SYSCALL_ERROR_HANDLER			\
-0:						\
-  xorl %edx, %edx;				\
-  subq %rax, %rdx;				\
-  pushq %rdx;					\
-  cfi_adjust_cfa_offset(8);			\
-  call __errno_location@PLT;		\
-  popq %rdx;					\
-  cfi_adjust_cfa_offset(-8);			\
-  movl %edx, (%rax);				\
-  orq $-1, %rax;				\
-  jmp L(pseudo_end);
-
-/* A quick note: it is assumed that the call to `__errno_location' does
-   not modify the stack!  */
-# else /* Not _LIBC_REENTRANT.  */
-#  define SYSCALL_ERROR_HANDLER			\
-0:movq errno@GOTPCREL(%RIP), %rcx;		\
-  xorl %edx, %edx;				\
-  subq %rax, %rdx;				\
-  movl %edx, (%rcx);				\
-  orq $-1, %rax;				\
-  jmp L(pseudo_end);
-# endif	/* __PIC__ */
-
-/* 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
-    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	DO_CALL
-# define DO_CALL(syscall_name, args)		\
-    DOARGS_##args				\
-    movl $SYS_ify (syscall_name), %eax;		\
-    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
-
-#endif	/* __ASSEMBLER__ */
-
-
-/* Pointer mangling support.  */
-#if defined NOT_IN_libc && defined IS_IN_rtld
-/* We cannot use the thread descriptor because in ld.so we use setjmp
-   earlier than the descriptor is initialized.  */
-# ifdef __ASSEMBLER__
-#  define PTR_MANGLE(reg)	xorq __pointer_chk_guard_local(%rip), reg;    \
-				rolq $17, reg
-#  define PTR_DEMANGLE(reg)	rorq $17, reg;				      \
-				xorq __pointer_chk_guard_local(%rip), reg
-# else
-#  define PTR_MANGLE(reg)	asm ("xorq __pointer_chk_guard_local(%%rip), %0\n" \
-				     "rolq $17, %0"			      \
-				     : "=r" (reg) : "0" (reg))
-#  define PTR_DEMANGLE(reg)	asm ("rorq $17, %0\n"			      \
-				     "xorq __pointer_chk_guard_local(%%rip), %0" \
-				     : "=r" (reg) : "0" (reg))
-# endif
-#else
-# ifdef __ASSEMBLER__
-#  define PTR_MANGLE(reg)	xorq %fs:POINTER_GUARD, reg;		      \
-				rolq $17, reg
-#  define PTR_DEMANGLE(reg)	rorq $17, reg;				      \
-				xorq %fs:POINTER_GUARD, reg
-# else
-#  define PTR_MANGLE(var)	asm ("xorq %%fs:%c2, %0\n"		      \
-				     "rolq $17, %0"			      \
-				     : "=r" (var)			      \
-				     : "0" (var),			      \
-				       "i" (offsetof (tcbhead_t,	      \
-						      pointer_guard)))
-#  define PTR_DEMANGLE(var)	asm ("rorq $17, %0\n"			      \
-				     "xorq %%fs:%c2, %0"		      \
-				     : "=r" (var)			      \
-				     : "0" (var),			      \
-				       "i" (offsetof (tcbhead_t,	      \
-						      pointer_guard)))
-# endif
-#endif
-
-#endif /* linux/x86_64/sysdep.h */