sysdeps/unix/sysv/linux/alpha/sysdep.h

   1 /* Copyright (C) 1992, 1993, 1995, 1996, 1997, 2002, 2003, 2004
   2    Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
   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 #ifndef _LINUX_ALPHA_SYSDEP_H
  22 #define _LINUX_ALPHA_SYSDEP_H 1
  23
  24 #ifdef __ASSEMBLER__
  25
  26 #include <asm/pal.h>
  27 #include <alpha/regdef.h>
  28
  29 #endif
  30
  31 /* There is some commonality.  */
  32 #include <sysdeps/unix/alpha/sysdep.h>
  33
  34 /* For Linux we can use the system call table in the header file
  35         /usr/include/asm/unistd.h
  36    of the kernel.  But these symbols do not follow the SYS_* syntax
  37    so we have to redefine the `SYS_ify' macro here.  */
  38 #undef SYS_ify
  39 #ifdef __STDC__
  40 # define SYS_ify(syscall_name)  __NR_##syscall_name
  41 #else
  42 # define SYS_ify(syscall_name)  __NR_/**/syscall_name
  43 #endif
  44
  45 /* Define some aliases to make automatic syscall generation work
  46    properly.  The SYS_* variants are for the benefit of the files in
  47    sysdeps/unix.  */
  48 #define __NR_getpid     __NR_getxpid
  49 #define __NR_getuid     __NR_getxuid
  50 #define __NR_getgid     __NR_getxgid
  51 #define SYS_getpid      __NR_getxpid
  52 #define SYS_getuid      __NR_getxuid
  53 #define SYS_getgid      __NR_getxgid
  54
  55 /*
  56  * Some syscalls no Linux program should know about:
  57  */
  58 #define __NR_osf_sigprocmask     48
  59 #define __NR_osf_shmat          209
  60 #define __NR_osf_getsysinfo     256
  61 #define __NR_osf_setsysinfo     257
  62
  63 /* Help old kernel headers where particular syscalls are not available.  */
  64 #ifndef __NR_semtimedop
  65 # define __NR_semtimedop        423
  66 #endif
  67
  68 /* This is a kludge to make syscalls.list find these under the names
  69    pread and pwrite, since some kernel headers define those names
  70    and some define the *64 names for the same system calls.  */
  71 #if !defined __NR_pread && defined __NR_pread64
  72 # define __NR_pread __NR_pread64
  73 #endif
  74 #if !defined __NR_pwrite && defined __NR_pwrite64
  75 # define __NR_pwrite __NR_pwrite64
  76 #endif
  77
  78 /*
  79  * In order to get the hidden arguments for rt_sigaction set up
  80  * properly, we need to call the assembly version.  This shouldn't
  81  * happen except for inside sigaction.c, where we handle this
  82  * specially.  Catch other uses and error.
  83  */
  84
  85 #undef INLINE_SYSCALL
  86 #define INLINE_SYSCALL(name, nr, args...)                               \
  87 ({                                                                      \
  88         extern char ChEcK[__NR_##name == __NR_rt_sigaction ? -1 : 1]    \
  89           __attribute__((unused));                                      \
  90         INLINE_SYSCALL1(name, nr, args);                                \
  91 })
  92
  93 #undef INTERNAL_SYSCALL
  94 #define INTERNAL_SYSCALL(name, err_out, nr, args...)                    \
  95 ({                                                                      \
  96         extern char ChEcK[__NR_##name == __NR_rt_sigaction ? -1 : 1]    \
  97           __attribute__((unused));                                      \
  98         INTERNAL_SYSCALL1(name, err_out, nr, args);                     \
  99 })
 100
 101 #endif /* _LINUX_ALPHA_SYSDEP_H */