sysdeps/unix/mips/mips32/sysdep.h

   1 /* Copyright (C) 1992, 1995, 1997, 1999, 2000, 2002, 2003
   2    Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Brendan Kehoe (brendan@zen.org).
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <sysdeps/unix/mips/sysdep.h>
  22
  23 /* Note that while it's better structurally, going back to call __syscall_error
  24    can make things confusing if you're debugging---it looks like it's jumping
  25    backwards into the previous fn.  */
  26 #ifdef __PIC__
  27 #define PSEUDO(name, syscall_name, args) \
  28   .align 2;                                                                   \
  29   99: la t9,__syscall_error;                                                  \
  30   jr t9;                                                                      \
  31   ENTRY(name)                                                                 \
  32   .set noreorder;                                                             \
  33   .cpload t9;                                                                 \
  34   li v0, SYS_ify(syscall_name);                                               \
  35   syscall;                                                                    \
  36   .set reorder;                                                               \
  37   bne a3, zero, 99b;                                                          \
  38 L(syse1):
  39 #else
  40 #define PSEUDO(name, syscall_name, args) \
  41   .set noreorder;                                                             \
  42   .align 2;                                                                   \
  43   99: j __syscall_error;                                                      \
  44   nop;                                                                        \
  45   ENTRY(name)                                                                 \
  46   .set noreorder;                                                             \
  47   li v0, SYS_ify(syscall_name);                                               \
  48   syscall;                                                                    \
  49   .set reorder;                                                               \
  50   bne a3, zero, 99b;                                                          \
  51 L(syse1):
  52 #endif