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 #define __SYSCALL_X32(nr, sym, qual)
  10 static char syscalls_64[] = {
  11 #include <asm/syscalls_64.h>
  12 };
  13 #undef __SYSCALL_64
  14 #undef __SYSCALL_X32
  15
  16 #ifdef CONFIG_X86_X32_ABI
  17 #define __SYSCALL_64(nr, sym, qual)
  18 #define __SYSCALL_X32(nr, sym, qual) [nr] = 1,
  19 static char syscalls_x32[] = {
  20 #include <asm/syscalls_64.h>
  21 };
  22 #undef __SYSCALL_64
  23 #undef __SYSCALL_X32
  24 #endif
  25
  26 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
  27 static char syscalls_ia32[] = {
  28 #include <asm/syscalls_32.h>
  29 };
  30 #undef __SYSCALL_I386
  31
  32 #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
  33 #include <asm/kvm_para.h>
  34 #endif
  35
  36 int main(void)
  37 {
  38 #ifdef CONFIG_PARAVIRT
  39 #ifdef CONFIG_PARAVIRT_XXL
  40         OFFSET(PV_CPU_usergs_sysret64, paravirt_patch_template,
  41                cpu.usergs_sysret64);
  42         OFFSET(PV_CPU_swapgs, paravirt_patch_template, cpu.swapgs);
  43 #ifdef CONFIG_DEBUG_ENTRY
  44         OFFSET(PV_IRQ_save_fl, paravirt_patch_template, irq.save_fl);
  45 #endif
  46 #endif
  47         BLANK();
  48 #endif
  49
  50 #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS)
  51         OFFSET(KVM_STEAL_TIME_preempted, kvm_steal_time, preempted);
  52         BLANK();
  53 #endif
  54
  55 #define ENTRY(entry) OFFSET(pt_regs_ ## entry, pt_regs, entry)
  56         ENTRY(bx);
  57         ENTRY(cx);
  58         ENTRY(dx);
  59         ENTRY(sp);
  60         ENTRY(bp);
  61         ENTRY(si);
  62         ENTRY(di);
  63         ENTRY(r8);
  64         ENTRY(r9);
  65         ENTRY(r10);
  66         ENTRY(r11);
  67         ENTRY(r12);
  68         ENTRY(r13);
  69         ENTRY(r14);
  70         ENTRY(r15);
  71         ENTRY(flags);
  72         BLANK();
  73 #undef ENTRY
  74
  75 #define ENTRY(entry) OFFSET(saved_context_ ## entry, saved_context, entry)
  76         ENTRY(cr0);
  77         ENTRY(cr2);
  78         ENTRY(cr3);
  79         ENTRY(cr4);
  80         ENTRY(gdt_desc);
  81         BLANK();
  82 #undef ENTRY
  83
  84         OFFSET(TSS_ist, tss_struct, x86_tss.ist);
  85         DEFINE(DB_STACK_OFFSET, offsetof(struct cea_exception_stacks, DB_stack) -
  86                offsetof(struct cea_exception_stacks, DB1_stack));
  87         BLANK();
  88
  89 #ifdef CONFIG_STACKPROTECTOR
  90         DEFINE(stack_canary_offset, offsetof(struct fixed_percpu_data, stack_canary));
  91         BLANK();
  92 #endif
  93
  94         DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1);
  95         DEFINE(NR_syscalls, sizeof(syscalls_64));
  96
  97 #ifdef CONFIG_X86_X32_ABI
  98         DEFINE(__NR_syscall_x32_max, sizeof(syscalls_x32) - 1);
  99         DEFINE(X32_NR_syscalls, sizeof(syscalls_x32));
 100 #endif
 101
 102         DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1);
 103         DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32));
 104
 105         return 0;
 106 }