sysdeps/unix/sysv/linux/sparc/sysdep.h

   1 /* Copyright (C) 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Miguel de Icaza <miguel@gnu.ai.mit.edu>, January 1997.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #ifndef _LINUX_SPARC_SYSDEP_H
  21 #define _LINUX_SPARC_SYSDEP_H 1
  22
  23 #include <sysdeps/unix/sparc/sysdep.h>
  24
  25 #undef SYS_ify
  26 #define SYS_ify(syscall_name) __NR_##syscall_name
  27
  28 #ifdef ASSEMBLER
  29
  30 #ifdef DONT_LOAD_G1
  31 # define LOADSYSCALL(x)
  32 #else
  33 # define LOADSYSCALL(x) mov SYS_##n, %g1
  34 #endif
  35
  36 /* Linux/SPARC uses a different trap number and uses __errno_location always */
  37 #undef PSEUDO
  38
  39 #define PSEUDO(name, syscall_name, args) \
  40         .text;                                                                \
  41         ENTRY(name);                                                          \
  42         LOADSYSCALL(syscall_name);                                            \
  43         ta 0x10;                                                              \
  44         bcc,a 1f;                                                             \
  45         nop;                                                                  \
  46         save %sp,96,%sp;                                                      \
  47         call __errno_location;                                                \
  48         nop;                                                                  \
  49         st %i0,[%o0];                                                         \
  50         restore;                                                              \
  51         retl;                                                                 \
  52         mov -1,%o0;                                                           \
  53 1:
  54
  55 #endif  /* ASSEMBLER */
  56
  57 #endif /* linux/sparc/sysdep.h */