arch/x86/kernel/asm-offsets_64.c

   1 #ifndef __LINUX_KBUILD_H
   2 # error "Please do not build this file directly, build asm-offsets.c instead"
   3 #endif
   4
   5 #include <asm/ia32.h>
   6
   7 #define __SYSCALL_64(nr, sym, compat) [nr] = 1,
   8 #define __SYSCALL_COMMON(nr, sym, compat) [nr] = 1,
   9 #ifdef CONFIG_X86_X32_ABI
  10 # define __SYSCALL_X32(nr, sym, compat) [nr] = 1,
  11 #else
  12 # define __SYSCALL_X32(nr, sym, compat) /* nothing */
  13 #endif
  14 static char syscalls_64[] = {
  15 #include <asm/syscalls_64.h>
  16 };
  17 #define __SYSCALL_I386(nr, sym, compat) [nr] = 1,
  18 static char syscalls_ia32[] = {
  19 #include <asm/syscalls_32.h>
  20 };
  21
  22 int main(void)
  23 {
  24 #ifdef CONFIG_PARAVIRT
  25         OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
  26         OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  27         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  28         BLANK();
  29 #endif
  30
  31 #define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
  32         ENTRY(bx);
  33         ENTRY(cx);
  34         ENTRY(dx);
  35         ENTRY(sp);
  36         ENTRY(bp);
  37         ENTRY(si);
  38         ENTRY(di);
  39         ENTRY(r8);
  40         ENTRY(r9);
  41         ENTRY(r10);
  42         ENTRY(r11);
  43         ENTRY(r12);
  44         ENTRY(r13);
  45         ENTRY(r14);
  46         ENTRY(r15);
  47         ENTRY(flags);
  48         BLANK();
  49 #undef ENTRY
  50
  51 #define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
  52         ENTRY(cr0);
  53         ENTRY(cr2);
  54         ENTRY(cr3);
  55         ENTRY(cr4);
  56         ENTRY(cr8);
  57         ENTRY(gdt_desc);
  58         BLANK();
  59 #undef ENTRY
  60
  61         OFFSET(TSS_ist, tss_struct, x86_tss.ist);
  62         OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
  63         BLANK();
  64
  65         DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
  66         DEFINE(NR_syscalls, sizeof(syscalls_64));
  67
  68         DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
  69         DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
  70
  71         return 0;
  72 }