sysdeps/unix/mips/sysdep.h

   1 /* Copyright (C) 1992-2017 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 #ifndef __mips_isa_rev
  23 # define __mips_isa_rev 0
  24 #endif
  25
  26 #ifdef __ASSEMBLER__
  27
  28 #include <regdef.h>
  29
  30 #define ENTRY(name) \
  31   .globl name;                                                                \
  32   .align 2;                                                                   \
  33   .ent name,0;                                                                \
  34   name##:                                                                     \
  35   cfi_startproc;
  36
  37 #undef END
  38 #define END(function)                                   \
  39                 cfi_endproc;                            \
  40                 .end    function;                       \
  41                 .size   function,.-function
  42
  43 #define ret     j ra ; nop
  44
  45 #undef PSEUDO_END
  46 #define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
  47
  48 #define PSEUDO_NOERRNO(name, syscall_name, args)        \
  49   .align 2;                                             \
  50   ENTRY(name)                                           \
  51   .set nomips16;                                        \
  52   .set noreorder;                                       \
  53   li v0, SYS_ify(syscall_name);                         \
  54   syscall
  55
  56 #undef PSEUDO_END_NOERRNO
  57 #define PSEUDO_END_NOERRNO(sym) cfi_endproc; .end sym; .size sym,.-sym
  58
  59 #define ret_NOERRNO ret
  60
  61 #define PSEUDO_ERRVAL(name, syscall_name, args) \
  62   .align 2;                                             \
  63   ENTRY(name)                                           \
  64   .set nomips16;                                        \
  65   .set noreorder;                                       \
  66   li v0, SYS_ify(syscall_name);                         \
  67   syscall
  68
  69 #undef PSEUDO_END_ERRVAL
  70 #define PSEUDO_END_ERRVAL(sym) cfi_endproc; .end sym; .size sym,.-sym
  71
  72 #define ret_ERRVAL ret
  73
  74 #define r0      v0
  75 #define r1      v1
  76 /* The mips move insn is d,s.  */
  77 #define MOVE(x,y)       move y , x
  78
  79 #if _MIPS_SIM == _ABIO32
  80 # define L(label) $L ## label
  81 #else
  82 # define L(label) .L ## label
  83 #endif
  84
  85 #endif