linux/include/asm-generic/unistd.h
<<
>>
Prefs
   1#include <uapi/asm-generic/unistd.h>
   2
   3/*
   4 * These are required system calls, we should
   5 * invert the logic eventually and let them
   6 * be selected by default.
   7 */
   8#if __BITS_PER_LONG == 32
   9#define __ARCH_WANT_STAT64
  10#define __ARCH_WANT_SYS_LLSEEK
  11#endif
  12
  13/*
  14 * "Conditional" syscalls
  15 *
  16 * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
  17 * but it doesn't work on all toolchains, so we just do it by hand
  18 */
  19#ifndef cond_syscall
  20#ifdef CONFIG_SYMBOL_PREFIX
  21#define __SYMBOL_PREFIX CONFIG_SYMBOL_PREFIX
  22#else
  23#define __SYMBOL_PREFIX
  24#endif
  25#define cond_syscall(x) asm(".weak\t" __SYMBOL_PREFIX #x "\n\t" \
  26                            ".set\t" __SYMBOL_PREFIX #x "," \
  27                            __SYMBOL_PREFIX "sys_ni_syscall")
  28#endif
  29
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.