arch/x86/kernel/asm-offsets_64.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #ifndef __LINUX_KBUILD_H
   3 # error "Please do not build this file directly, build asm-offsets.c instead"
   4 #endif
   5
   6 #include <asm/ia32.h>
   7
   8 #define __SYSCALL_64(nr, sym, qual) [nr] = 1,
   9 static char syscalls_64[] = {
  10 #include <asm/syscalls_64.h>
  11 };
  12 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
  13 static char syscalls_ia32[] = {
  14 #include <asm/syscalls_32.h>
  15 };
  16
  17 #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
  18 #include <asm/kvm_para.h>
  19 #endif
  20
  21 int main(void)
  22 {
  23 #ifdef CONFIG_PARAVIRT
  24         OFFSET(PV_CPU_usergs_sysret64, pv_cpu_ops, usergs_sysret64);
  25         OFFSET(PV_CPU_swapgs, pv_cpu_ops, swapgs);
  26         BLANK();
  27 #endif
  28
  29 #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
  30         OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
  31         BLANK();
  32 #endif
  33
  34 #define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
  35         ENTRY(bx);
  36         ENTRY(cx);
  37         ENTRY(dx);
  38         ENTRY(sp);
  39         ENTRY(bp);
  40         ENTRY(si);
  41         ENTRY(di);
  42         ENTRY(r8);
  43         ENTRY(r9);
  44         ENTRY(r10);
  45         ENTRY(r11);
  46         ENTRY(r12);
  47         ENTRY(r13);
  48         ENTRY(r14);
  49         ENTRY(r15);
  50         ENTRY(flags);
  51         BLANK();
  52 #undef ENTRY
  53
  54 #define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
  55         ENTRY(cr0);
  56         ENTRY(cr2);
  57         ENTRY(cr3);
  58         ENTRY(cr4);
  59         ENTRY(cr8);
  60         ENTRY(gdt_desc);
  61         BLANK();
  62 #undef ENTRY
  63
  64         OFFSET(TSS_ist, tss_struct, x86_tss.ist);
  65         OFFSET(TSS_sp0, tss_struct, x86_tss.sp0);
  66         BLANK();
  67
  68 #ifdef CONFIG_CC_STACKPROTECTOR
  69         DEFINE(stack_canary_offset, offsetof(union irq_stack_union, stack_canary));
  70         BLANK();
  71 #endif
  72
  73         DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
  74         DEFINE(NR_syscalls, sizeof(syscalls_64));
  75
  76         DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
  77         DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
  78
  79         return 0;
  80 }