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

   1 /* Copyright (C) 1992-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
   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 #ifndef _LINUX_ALPHA_SYSDEP_H
  20 #define _LINUX_ALPHA_SYSDEP_H 1
  21
  22 #ifdef __ASSEMBLER__
  23 #include <asm/pal.h>
  24 #include <alpha/regdef.h>
  25 #endif
  26
  27 /* There is some commonality.  */
  28 #include <sysdeps/unix/sysv/linux/sysdep.h>
  29 #include <sysdeps/unix/alpha/sysdep.h>
  30
  31 #include <tls.h>
  32
  33 /* For Linux we can use the system call table in the header file
  34         /usr/include/asm/unistd.h
  35    of the kernel.  But these symbols do not follow the SYS_* syntax
  36    so we have to redefine the `SYS_ify' macro here.  */
  37 #undef SYS_ify
  38 #define SYS_ify(syscall_name)   __NR_##syscall_name
  39
  40 /* Define some aliases to make automatic syscall generation work
  41    properly.  The SYS_* variants are for the benefit of the files in
  42    sysdeps/unix.  */
  43 #define __NR_getpid     __NR_getxpid
  44 #define __NR_getuid     __NR_getxuid
  45 #define __NR_getgid     __NR_getxgid
  46 #define SYS_getpid      __NR_getxpid
  47 #define SYS_getuid      __NR_getxuid
  48 #define SYS_getgid      __NR_getxgid
  49
  50 /*
  51  * Some syscalls no Linux program should know about:
  52  */
  53 #define __NR_osf_sigprocmask     48
  54 #define __NR_osf_shmat          209
  55 #define __NR_osf_getsysinfo     256
  56 #define __NR_osf_setsysinfo     257
  57
  58 /* Help old kernel headers where particular syscalls are not available.  */
  59 #ifndef __NR_semtimedop
  60 # define __NR_semtimedop        423
  61 #endif
  62
  63 /* This is a kludge to make syscalls.list find these under the names
  64    pread and pwrite, since some kernel headers define those names
  65    and some define the *64 names for the same system calls.  */
  66 #if !defined __NR_pread && defined __NR_pread64
  67 # define __NR_pread __NR_pread64
  68 #endif
  69 #if !defined __NR_pwrite && defined __NR_pwrite64
  70 # define __NR_pwrite __NR_pwrite64
  71 #endif
  72
  73 /*
  74  * In order to get the hidden arguments for rt_sigaction set up
  75  * properly, we need to call the assembly version.  This shouldn't
  76  * happen except for inside sigaction.c, where we handle this
  77  * specially.  Catch other uses and error.
  78  */
  79
  80 #undef INLINE_SYSCALL
  81 #define INLINE_SYSCALL(name, nr, args...)                               \
  82 ({                                                                      \
  83         extern char ChEcK[__NR_##name == __NR_rt_sigaction ? -1 : 1]    \
  84           __attribute__((unused));                                      \
  85         INLINE_SYSCALL1(name, nr, args);                                \
  86 })
  87
  88 #undef INTERNAL_SYSCALL
  89 #define INTERNAL_SYSCALL(name, err_out, nr, args...)                    \
  90 ({                                                                      \
  91         extern char ChEcK[__NR_##name == __NR_rt_sigaction ? -1 : 1]    \
  92           __attribute__((unused));                                      \
  93         INTERNAL_SYSCALL1(name, err_out, nr, args);                     \
  94 })
  95
  96 #endif /* _LINUX_ALPHA_SYSDEP_H */