sys_call_table_32.c 1.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
  4. * with some changes for UML.
  5. */
  6. #include <linux/linkage.h>
  7. #include <linux/sys.h>
  8. #include <linux/cache.h>
  9. #include <asm/unistd.h>
  10. #include <asm/syscall.h>
  11. #define __NO_STUBS
  12. /*
  13. * Below you can see, in terms of #define's, the differences between the x86-64
  14. * and the UML syscall table.
  15. */
  16. /* Not going to be implemented by UML, since we have no hardware. */
  17. #define sys_iopl sys_ni_syscall
  18. #define sys_ioperm sys_ni_syscall
  19. #define sys_vm86old sys_ni_syscall
  20. #define sys_vm86 sys_ni_syscall
  21. #define old_mmap sys_old_mmap
  22. #define __SYSCALL_I386(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ;
  23. #include <asm/syscalls_32.h>
  24. #undef __SYSCALL_I386
  25. #define __SYSCALL_I386(nr, sym) [ nr ] = sym,
  26. extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long);
  27. const sys_call_ptr_t sys_call_table[] ____cacheline_aligned = {
  28. /*
  29. * Smells like a compiler bug -- it doesn't work
  30. * when the & below is removed.
  31. */
  32. [0 ... __NR_syscall_max] = &sys_ni_syscall,
  33. #include <asm/syscalls_32.h>
  34. };
  35. int syscall_table_size = sizeof(sys_call_table);