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, qual) [nr] = 1,
   8 static char syscalls_64[] = {
   9 #include <asm/syscalls_64.h>
  10 };
  11 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
  12 static char syscalls_ia32[] = {
  13 #include <asm/syscalls_32.h>
  14 };
  15
  16 int main(void)
  17 {
  18 #ifdef CONFIG_PARAVIRT
  19         OFFSET(PV_IRQ_adjust_exception_frame, pv_irq_ops, adjust_exception_frame);
  20         OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  21         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  22         BLANK();
  23 #endif
  24
  25 #define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
  26         ENTRY(bx);
  27         ENTRY(cx);
  28         ENTRY(dx);
  29         ENTRY(sp);
  30         ENTRY(bp);
  31         ENTRY(si);
  32         ENTRY(di);
  33         ENTRY(r8);
  34         ENTRY(r9);
  35         ENTRY(r10);
  36         ENTRY(r11);
  37         ENTRY(r12);
  38         ENTRY(r13);
  39         ENTRY(r14);
  40         ENTRY(r15);
  41         ENTRY(flags);
  42         BLANK();
  43 #undef ENTRY
  44
  45 #define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
  46         ENTRY(cr0);
  47         ENTRY(cr2);
  48         ENTRY(cr3);
  49         ENTRY(cr4);
  50         ENTRY(cr8);
  51         ENTRY(gdt_desc);
  52         BLANK();
  53 #undef ENTRY
  54
  55         OFFSET(TSS_ist, tss_struct, x86_tss.ist);
  56         OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
  57         BLANK();
  58
  59         DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
  60         DEFINE(NR_syscalls, sizeof(syscalls_64));
  61
  62         DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
  63         DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
  64
  65         return 0;
  66 }