xref: /openbmc/linux/arch/x86/kernel/asm-offsets_64.c (revision e7253313)
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 }
107