xref: /openbmc/linux/arch/x86/kernel/asm-offsets_32.c (revision 133f9794)
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/ucontext.h>
7 
8 #define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
9 static char syscalls[] = {
10 #include <asm/syscalls_32.h>
11 };
12 
13 /* workaround for a warning with -Wmissing-prototypes */
14 void foo(void);
15 
16 void foo(void)
17 {
18 	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
19 	OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
20 	OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
21 	OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
22 	OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
23 	OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
24 	OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
25 	BLANK();
26 
27 	OFFSET(PT_EBX, pt_regs, bx);
28 	OFFSET(PT_ECX, pt_regs, cx);
29 	OFFSET(PT_EDX, pt_regs, dx);
30 	OFFSET(PT_ESI, pt_regs, si);
31 	OFFSET(PT_EDI, pt_regs, di);
32 	OFFSET(PT_EBP, pt_regs, bp);
33 	OFFSET(PT_EAX, pt_regs, ax);
34 	OFFSET(PT_DS,  pt_regs, ds);
35 	OFFSET(PT_ES,  pt_regs, es);
36 	OFFSET(PT_FS,  pt_regs, fs);
37 	OFFSET(PT_GS,  pt_regs, gs);
38 	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
39 	OFFSET(PT_EIP, pt_regs, ip);
40 	OFFSET(PT_CS,  pt_regs, cs);
41 	OFFSET(PT_EFLAGS, pt_regs, flags);
42 	OFFSET(PT_OLDESP, pt_regs, sp);
43 	OFFSET(PT_OLDSS,  pt_regs, ss);
44 	BLANK();
45 
46 	OFFSET(saved_context_gdt_desc, saved_context, gdt_desc);
47 	BLANK();
48 
49 	/* Offset from the sysenter stack to tss.sp0 */
50 	DEFINE(TSS_sysenter_sp0, offsetof(struct cpu_entry_area, tss.x86_tss.sp0) -
51 	       offsetofend(struct cpu_entry_area, entry_stack_page.stack));
52 
53 #ifdef CONFIG_CC_STACKPROTECTOR
54 	BLANK();
55 	OFFSET(stack_canary_offset, stack_canary, canary);
56 #endif
57 
58 	BLANK();
59 	DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
60 	DEFINE(NR_syscalls, sizeof(syscalls));
61 }
62