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 #ifdef CONFIG_PARAVIRT_XXL
  25         OFFSET(PV_CPU_usergs_sysret64, paravirt_patch_template,
  26                cpu.usergs_sysret64);
  27         OFFSET(PV_CPU_swapgs, paravirt_patch_template, cpu.swapgs);
  28 #ifdef CONFIG_DEBUG_ENTRY
  29         OFFSET(PV_IRQ_save_fl, paravirt_patch_template, irq.save_fl);
  30 #endif
  31 #endif
  32         BLANK();
  33 #endif
  34
  35 #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
  36         OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
  37         BLANK();
  38 #endif
  39
  40 #define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
  41         ENTRY(bx);
  42         ENTRY(cx);
  43         ENTRY(dx);
  44         ENTRY(sp);
  45         ENTRY(bp);
  46         ENTRY(si);
  47         ENTRY(di);
  48         ENTRY(r8);
  49         ENTRY(r9);
  50         ENTRY(r10);
  51         ENTRY(r11);
  52         ENTRY(r12);
  53         ENTRY(r13);
  54         ENTRY(r14);
  55         ENTRY(r15);
  56         ENTRY(flags);
  57         BLANK();
  58 #undef ENTRY
  59
  60 #define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
  61         ENTRY(cr0);
  62         ENTRY(cr2);
  63         ENTRY(cr3);
  64         ENTRY(cr4);
  65         ENTRY(cr8);
  66         ENTRY(gdt_desc);
  67         BLANK();
  68 #undef ENTRY
  69
  70         OFFSET(TSS_ist, tss_struct, x86_tss.ist);
  71         DEFINE(DB_STACK_OFFSET, offsetof(struct cea_exception_stacks, DB_stack) -
  72                offsetof(struct cea_exception_stacks, DB1_stack));
  73         BLANK();
  74
  75 #ifdef CONFIG_STACKPROTECTOR
  76         DEFINE(stack_canary_offset, offsetof(struct fixed_percpu_data, stack_canary));
  77         BLANK();
  78 #endif
  79
  80         DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
  81         DEFINE(NR_syscalls, sizeof(syscalls_64));
  82
  83         DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
  84         DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
  85
  86         return 0;
  87 }