ports/sysdeps/unix/mips/sysdep.h

   1 /* Copyright (C) 1992-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Brendan Kehoe (brendan@zen.org).
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sgidefs.h>
  20 #include <sysdeps/unix/sysdep.h>
  21
  22 #ifdef __ASSEMBLER__
  23
  24 #include <regdef.h>
  25
  26 #define ENTRY(name) \
  27   .globl name;                                                                \
  28   .align 2;                                                                   \
  29   .ent name,0;                                                                \
  30   name##:                                                                     \
  31   cfi_startproc;
  32
  33 #undef END
  34 #define END(function)                                   \
  35                 cfi_endproc;                            \
  36                 .end    function;                       \
  37                 .size   function,.-function
  38
  39 #define ret     j ra ; nop
  40
  41 #undef PSEUDO_END
  42 #define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
  43
  44 #define PSEUDO_NOERRNO(name, syscall_name, args)        \
  45   .align 2;                                             \
  46   ENTRY(name)                                           \
  47   .set nomips16;                                        \
  48   .set noreorder;                                       \
  49   li v0, SYS_ify(syscall_name);                         \
  50   syscall
  51
  52 #undef PSEUDO_END_NOERRNO
  53 #define PSEUDO_END_NOERRNO(sym) cfi_endproc; .end sym; .size sym,.-sym
  54
  55 #define ret_NOERRNO ret
  56
  57 #define PSEUDO_ERRVAL(name, syscall_name, args) \
  58   .align 2;                                             \
  59   ENTRY(name)                                           \
  60   .set nomips16;                                        \
  61   .set noreorder;                                       \
  62   li v0, SYS_ify(syscall_name);                         \
  63   syscall
  64
  65 #undef PSEUDO_END_ERRVAL
  66 #define PSEUDO_END_ERRVAL(sym) cfi_endproc; .end sym; .size sym,.-sym
  67
  68 #define ret_ERRVAL ret
  69
  70 #define r0      v0
  71 #define r1      v1
  72 /* The mips move insn is d,s.  */
  73 #define MOVE(x,y)       move y , x
  74
  75 #if _MIPS_SIM == _ABIO32
  76 # define L(label) $L ## label
  77 #else
  78 # define L(label) .L ## label
  79 #endif
  80
  81 #endif