xref: /linux/arch/x86/kernel/asm-offsets_64.c (revision ebf68996de0ab250c5d520eb2291ab65643e9a1e)
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 }
88