sysdeps/unix/x86_64/sysdep.h

   1 /* Copyright (C) 1991-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <http://www.gnu.org/licenses/>.  */
  17
  18 #include <sysdeps/unix/sysdep.h>
  19 #include <sysdeps/x86_64/sysdep.h>
  20
  21 #ifdef  __ASSEMBLER__
  22
  23 /* This is defined as a separate macro so that other sysdep.h files
  24    can include this one and then redefine DO_CALL.  */
  25
  26 #define DO_CALL(syscall_name, args)                                           \
  27   lea SYS_ify (syscall_name), %rax;                                           \
  28   syscall
  29
  30 #define r0              %rax    /* Normal return-value register.  */
  31 #define r1              %rbx    /* Secondary return-value register.  */
  32 #define MOVE(x,y)       movq x, y
  33
  34 #endif  /* __ASSEMBLER__ */