xref: /openbmc/linux/arch/x86/kernel/asm-offsets_32.c (revision 39b6f3aa)
1 #include <asm/ucontext.h>
2 
3 #include <linux/lguest.h>
4 #include "../../../drivers/lguest/lg.h"
5 
6 #define __SYSCALL_I386(nr, sym, compat) [nr] = 1,
7 static char syscalls[] = {
8 #include <asm/syscalls_32.h>
9 };
10 
11 /* workaround for a warning with -Wmissing-prototypes */
12 void foo(void);
13 
14 void foo(void)
15 {
16 	OFFSET(IA32_SIGCONTEXT_ax, sigcontext, ax);
17 	OFFSET(IA32_SIGCONTEXT_bx, sigcontext, bx);
18 	OFFSET(IA32_SIGCONTEXT_cx, sigcontext, cx);
19 	OFFSET(IA32_SIGCONTEXT_dx, sigcontext, dx);
20 	OFFSET(IA32_SIGCONTEXT_si, sigcontext, si);
21 	OFFSET(IA32_SIGCONTEXT_di, sigcontext, di);
22 	OFFSET(IA32_SIGCONTEXT_bp, sigcontext, bp);
23 	OFFSET(IA32_SIGCONTEXT_sp, sigcontext, sp);
24 	OFFSET(IA32_SIGCONTEXT_ip, sigcontext, ip);
25 	BLANK();
26 
27 	OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
28 	OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
29 	OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
30 	OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
31 	OFFSET(CPUINFO_hard_math, cpuinfo_x86, hard_math);
32 	OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
33 	OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
34 	OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
35 	BLANK();
36 
37 	OFFSET(TI_sysenter_return, thread_info, sysenter_return);
38 	OFFSET(TI_cpu, thread_info, cpu);
39 	BLANK();
40 
41 	OFFSET(PT_EBX, pt_regs, bx);
42 	OFFSET(PT_ECX, pt_regs, cx);
43 	OFFSET(PT_EDX, pt_regs, dx);
44 	OFFSET(PT_ESI, pt_regs, si);
45 	OFFSET(PT_EDI, pt_regs, di);
46 	OFFSET(PT_EBP, pt_regs, bp);
47 	OFFSET(PT_EAX, pt_regs, ax);
48 	OFFSET(PT_DS,  pt_regs, ds);
49 	OFFSET(PT_ES,  pt_regs, es);
50 	OFFSET(PT_FS,  pt_regs, fs);
51 	OFFSET(PT_GS,  pt_regs, gs);
52 	OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
53 	OFFSET(PT_EIP, pt_regs, ip);
54 	OFFSET(PT_CS,  pt_regs, cs);
55 	OFFSET(PT_EFLAGS, pt_regs, flags);
56 	OFFSET(PT_OLDESP, pt_regs, sp);
57 	OFFSET(PT_OLDSS,  pt_regs, ss);
58 	BLANK();
59 
60 	OFFSET(IA32_RT_SIGFRAME_sigcontext, rt_sigframe, uc.uc_mcontext);
61 	BLANK();
62 
63 	OFFSET(saved_context_gdt_desc, saved_context, gdt_desc);
64 	BLANK();
65 
66 	/* Offset from the sysenter stack to tss.sp0 */
67 	DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
68 		 sizeof(struct tss_struct));
69 
70 #if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
71 	BLANK();
72 	OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
73 	OFFSET(LGUEST_DATA_irq_pending, lguest_data, irq_pending);
74 
75 	BLANK();
76 	OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
77 	OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
78 	OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
79 	OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
80 	OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
81 	OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
82 	OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
83 	OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
84 	OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
85 	OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
86 #endif
87 	BLANK();
88 	DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
89 	DEFINE(NR_syscalls, sizeof(syscalls));
90 }
91