sysdeps/unix/mips/sysdep.h

   1 /* Copyright (C) 1992-2024 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    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <sgidefs.h>
  19 #include <sysdeps/unix/sysdep.h>
  20
  21 #ifndef __mips_isa_rev
  22 # define __mips_isa_rev 0
  23 #endif
  24
  25 #ifdef __ASSEMBLER__
  26
  27 #include <regdef.h>
  28
  29 #define ENTRY(name) \
  30   .globl name;                                                                \
  31   .align 2;                                                                   \
  32   .ent name,0;                                                                \
  33   name##:                                                                     \
  34   cfi_startproc;
  35
  36 #undef END
  37 #define END(function)                                   \
  38                 cfi_endproc;                            \
  39                 .end    function;                       \
  40                 .size   function,.-function
  41
  42 #define ret     j ra ; nop
  43
  44 #undef PSEUDO_END
  45 #define PSEUDO_END(sym) cfi_endproc; .end sym; .size sym,.-sym
  46
  47 #define PSEUDO_NOERRNO(name, syscall_name, args)        \
  48   .align 2;                                             \
  49   ENTRY(name)                                           \
  50   .set nomips16;                                        \
  51   .set noreorder;                                       \
  52   li v0, SYS_ify(syscall_name);                         \
  53   syscall
  54
  55 #undef PSEUDO_END_NOERRNO
  56 #define PSEUDO_END_NOERRNO(sym) cfi_endproc; .end sym; .size sym,.-sym
  57
  58 #define ret_NOERRNO ret
  59
  60 #define PSEUDO_ERRVAL(name, syscall_name, args) \
  61   .align 2;                                             \
  62   ENTRY(name)                                           \
  63   .set nomips16;                                        \
  64   .set noreorder;                                       \
  65   li v0, SYS_ify(syscall_name);                         \
  66   syscall
  67
  68 #undef PSEUDO_END_ERRVAL
  69 #define PSEUDO_END_ERRVAL(sym) cfi_endproc; .end sym; .size sym,.-sym
  70
  71 #define ret_ERRVAL ret
  72
  73 #define r0      v0
  74 #define r1      v1
  75 /* The mips move insn is d,s.  */
  76 #define MOVE(x,y)       move y , x
  77
  78 #if _MIPS_SIM == _ABIO32
  79 # define L(label) $L ## label
  80 #else
  81 # define L(label) .L ## label
  82 #endif
  83
  84 #endif