sysdeps/unix/sparc/sysdep.h

   1 /* Copyright (C) 1993, 1994, 1995, 1997, 2003 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, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <sysdeps/unix/sysdep.h>
  20
  21 #ifdef  __ASSEMBLER__
  22
  23 #ifdef  NO_UNDERSCORES
  24 /* Since C identifiers are not normally prefixed with an underscore
  25    on this system, the asm identifier `syscall_error' intrudes on the
  26    C name space.  Make sure we use an innocuous name.  */
  27 #define syscall_error   C_SYMBOL_NAME(__syscall_error)
  28 #endif
  29
  30 #ifdef HAVE_ELF
  31 #define ENTRY(name)             \
  32   .global C_SYMBOL_NAME(name);  \
  33   .type name,@function;         \
  34   .align 4;                     \
  35   C_LABEL(name)
  36
  37 #else
  38 #define ENTRY(name)             \
  39   .global C_SYMBOL_NAME(name);  \
  40   .align 4;                     \
  41   C_LABEL(name)
  42
  43 #endif /* HAVE_ELF */
  44
  45 #define PSEUDO(name, syscall_name, args)        \
  46   .global syscall_error;                        \
  47   ENTRY (name)                                  \
  48   mov SYS_ify(syscall_name), %g1;               \
  49   ta 0;                                         \
  50   bcc 1f;                                       \
  51   sethi %hi(syscall_error), %g1;                \
  52   jmp %g1 + %lo(syscall_error); nop;            \
  53 1:
  54
  55 #define PSEUDO_NOERRNO(name, syscall_name, args) \
  56   .global syscall_error;                        \
  57   ENTRY (name)                                  \
  58   mov SYS_ify(syscall_name), %g1;               \
  59   ta 0
  60
  61 #define PSEUDO_ERRVAL(name, syscall_name, args) \
  62   .global syscall_error;                        \
  63   ENTRY (name)                                  \
  64   mov SYS_ify(syscall_name), %g1;               \
  65   ta 0
  66
  67 #define ret             retl; nop
  68 #define ret_NOERRNO     retl; nop
  69 #define ret_ERRVAL      retl; nop
  70 #define r0              %o0
  71 #define r1              %o1
  72 #define MOVE(x,y)       mov x, y
  73
  74 #endif  /* __ASSEMBLER__ */