include/asm-generic/unistd.h

   1 #include <uapi/asm-generic/unistd.h>
   2 #include <linux/export.h>
   3
   4 /*
   5  * These are required system calls, we should
   6  * invert the logic eventually and let them
   7  * be selected by default.
   8  */
   9 #if __BITS_PER_LONG == 32
  10 #define __ARCH_WANT_STAT64
  11 #define __ARCH_WANT_SYS_LLSEEK
  12 #endif
  13
  14 /*
  15  * "Conditional" syscalls
  16  *
  17  * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
  18  * but it doesn't work on all toolchains, so we just do it by hand
  19  */
  20 #ifndef cond_syscall
  21 #define cond_syscall(x) asm(".weak\t" VMLINUX_SYMBOL_STR(x) "\n\t"      \
  22                             ".set\t" VMLINUX_SYMBOL_STR(x) ","  \
  23                             VMLINUX_SYMBOL_STR(sys_ni_syscall))
  24 #endif