linux/arch/x86/kernel/asm-offsets_32.c
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   1#ifndef __LINUX_KBUILD_H
   2# error "Please do not build this file directly, build asm-offsets.c instead"
   3#endif
   4
   5#include <asm/ucontext.h>
   6
   7#include <linux/lguest.h>
   8#include "../../../drivers/lguest/lg.h"
   9
  10#define __SYSCALL_I386(nr, sym, qual) [nr] = 1,
  11static char syscalls[] = {
  12#include <asm/syscalls_32.h>
  13};
  14
  15/* workaround for a warning with -Wmissing-prototypes */
  16void foo(void);
  17
  18void foo(void)
  19{
  20        OFFSET(CPUINFO_x86, cpuinfo_x86, x86);
  21        OFFSET(CPUINFO_x86_vendor, cpuinfo_x86, x86_vendor);
  22        OFFSET(CPUINFO_x86_model, cpuinfo_x86, x86_model);
  23        OFFSET(CPUINFO_x86_mask, cpuinfo_x86, x86_mask);
  24        OFFSET(CPUINFO_cpuid_level, cpuinfo_x86, cpuid_level);
  25        OFFSET(CPUINFO_x86_capability, cpuinfo_x86, x86_capability);
  26        OFFSET(CPUINFO_x86_vendor_id, cpuinfo_x86, x86_vendor_id);
  27        BLANK();
  28
  29        OFFSET(PT_EBX, pt_regs, bx);
  30        OFFSET(PT_ECX, pt_regs, cx);
  31        OFFSET(PT_EDX, pt_regs, dx);
  32        OFFSET(PT_ESI, pt_regs, si);
  33        OFFSET(PT_EDI, pt_regs, di);
  34        OFFSET(PT_EBP, pt_regs, bp);
  35        OFFSET(PT_EAX, pt_regs, ax);
  36        OFFSET(PT_DS,  pt_regs, ds);
  37        OFFSET(PT_ES,  pt_regs, es);
  38        OFFSET(PT_FS,  pt_regs, fs);
  39        OFFSET(PT_GS,  pt_regs, gs);
  40        OFFSET(PT_ORIG_EAX, pt_regs, orig_ax);
  41        OFFSET(PT_EIP, pt_regs, ip);
  42        OFFSET(PT_CS,  pt_regs, cs);
  43        OFFSET(PT_EFLAGS, pt_regs, flags);
  44        OFFSET(PT_OLDESP, pt_regs, sp);
  45        OFFSET(PT_OLDSS,  pt_regs, ss);
  46        BLANK();
  47
  48        OFFSET(saved_context_gdt_desc, saved_context, gdt_desc);
  49        BLANK();
  50
  51        /* Offset from the sysenter stack to tss.sp0 */
  52        DEFINE(TSS_sysenter_sp0, offsetof(struct tss_struct, x86_tss.sp0) -
  53               offsetofend(struct tss_struct, SYSENTER_stack));
  54
  55        /* Offset from cpu_tss to SYSENTER_stack */
  56        OFFSET(CPU_TSS_SYSENTER_stack, tss_struct, SYSENTER_stack);
  57        /* Size of SYSENTER_stack */
  58        DEFINE(SIZEOF_SYSENTER_stack, sizeof(((struct tss_struct *)0)->SYSENTER_stack));
  59
  60#ifdef CONFIG_CC_STACKPROTECTOR
  61        BLANK();
  62        OFFSET(stack_canary_offset, stack_canary, canary);
  63#endif
  64
  65#if defined(CONFIG_LGUEST) || defined(CONFIG_LGUEST_GUEST) || defined(CONFIG_LGUEST_MODULE)
  66        BLANK();
  67        OFFSET(LGUEST_DATA_irq_enabled, lguest_data, irq_enabled);
  68        OFFSET(LGUEST_DATA_irq_pending, lguest_data, irq_pending);
  69
  70        BLANK();
  71        OFFSET(LGUEST_PAGES_host_gdt_desc, lguest_pages, state.host_gdt_desc);
  72        OFFSET(LGUEST_PAGES_host_idt_desc, lguest_pages, state.host_idt_desc);
  73        OFFSET(LGUEST_PAGES_host_cr3, lguest_pages, state.host_cr3);
  74        OFFSET(LGUEST_PAGES_host_sp, lguest_pages, state.host_sp);
  75        OFFSET(LGUEST_PAGES_guest_gdt_desc, lguest_pages,state.guest_gdt_desc);
  76        OFFSET(LGUEST_PAGES_guest_idt_desc, lguest_pages,state.guest_idt_desc);
  77        OFFSET(LGUEST_PAGES_guest_gdt, lguest_pages, state.guest_gdt);
  78        OFFSET(LGUEST_PAGES_regs_trapnum, lguest_pages, regs.trapnum);
  79        OFFSET(LGUEST_PAGES_regs_errcode, lguest_pages, regs.errcode);
  80        OFFSET(LGUEST_PAGES_regs, lguest_pages, regs);
  81#endif
  82        BLANK();
  83        DEFINE(__NR_syscall_max, sizeof(syscalls) - 1);
  84        DEFINE(NR_syscalls, sizeof(syscalls));
  85}
  86